CN113541895B

CN113541895B - Data transmission method and related device

Info

Publication number: CN113541895B
Application number: CN202010302718.1A
Authority: CN
Inventors: 不公告发明人
Original assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Current assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2022-11-29
Anticipated expiration: 2040-04-16
Also published as: CN113541895A

Abstract

The embodiment of the application discloses a data transmission method and a related device thereof, which are applied to a terminal, wherein the method comprises the following steps: acquiring transmission configuration information, wherein the transmission configuration information is used for indicating a data transmission configuration mode in a physical uplink shared channel; determining a transmission starting position of an initial transmission block of a physical uplink shared channel according to the transmission configuration information; and transmitting the data to be transmitted according to the transmission initial position of the initial transmission block. According to the embodiment of the application, the transmission initial position of the initial transmission block of the physical uplink shared channel is determined according to the transmission configuration information, and the data to be transmitted is transmitted according to the transmission initial position of the initial transmission block, so that the spatial diversity gain of multiple TRPs (total transfer point) of data transmission is improved, and the reliability of data transmission is improved.

Description

Data transmission method and related device

Technical Field

The present application relates to the field of electronic technologies, and in particular, to a data transmission method and a related apparatus.

Background

In a New Radio (NR) system, a Coordinated Multiple Points Transmission/Reception (CoMP) is an effective technique for increasing a data Transmission rate, and is also called a Transmission and Reception Point (TRP) Transmission.

At present, multi-TRP transmission only enhances downlink data transmission of an ultra-reliable and low latency communication (URLLC) system and an enhanced mobile broadband (eMBB) system, and does not enhance uplink data transmission of the URLLC system and the eMBB system.

In a scenario with multiple TRPs, uplink data transmission of the unlicensed physical uplink shared channel may be performed only on 1 TRP, and no uplink data transmission is performed on other TRPs, so that spatial diversity gain of multiple TRPs cannot be obtained. Therefore, a scheme for improving the spatial diversity gain of multiple TRPs for data transmission and improving the reliability of data transmission is needed.

Disclosure of Invention

The embodiment of the application provides a data transmission method and a related device, aiming to improve the spatial diversity gain of multiple TRPs (total transient power) of data transmission and improve the reliability of data transmission.

In a first aspect, an embodiment of the present application provides a data transmission method, which is applied to a terminal, and the method includes:

acquiring transmission configuration information, wherein the transmission configuration information is used for indicating a data transmission configuration mode in a physical uplink shared channel;

determining a transmission initial position of an initial transmission block of a physical uplink shared channel according to the transmission configuration information;

and transmitting the data to be transmitted according to the transmission initial position of the initial transmission block.

In a second aspect, an embodiment of the present application provides a data transmission method, which is applied to a network device, and the method includes:

configuring transmission configuration information, wherein a target indication domain and a first indication domain of the transmission configuration information are used for indicating a configuration mode of data to be transmitted of a terminal on a physical uplink shared channel and a transmission initial position of an initial transmission block, and the first indication domain is used for indicating a mode of determining the transmission initial position of the initial transmission block of the physical uplink shared channel by the terminal;

and sending the transmission configuration information to the terminal.

In a third aspect, an embodiment of the present application provides a data transmission apparatus, which is applied to a terminal, and the apparatus includes: a processing unit and a communication unit, wherein,

the processing unit is configured to acquire transmission configuration information through the communication unit, where the transmission configuration information is used to indicate a data transmission configuration mode in a physical uplink shared channel;

and the communication unit is used for determining the transmission starting position of the initial transmission block of the physical uplink shared channel according to the transmission configuration information; and transmitting data to be transmitted according to the transmission initial position of the initial transmission block through the communication unit.

In a fourth aspect, an embodiment of the present application provides a data transmission apparatus, which is applied to a network device, and the apparatus includes: a processing unit and a communication unit, wherein,

the processing unit is configured to configure transmission configuration information, a target indication field and a first indication field of the transmission configuration information, where the target indication field is used to indicate a configuration mode of data to be transmitted of a terminal on a physical uplink shared channel and a transmission start position of an initial transmission block, and the first indication field is used to indicate a mode of the terminal for determining the transmission start position of the initial transmission block of the physical uplink shared channel;

and for sending the transmission configuration information to the terminal via the communication unit.

In a fifth aspect, an embodiment of the present application provides an electronic device, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the steps in any of the methods of the first aspect of the embodiment of the present application.

In a sixth aspect, an embodiment of the present application provides an electronic device, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the steps in any of the methods in the second aspect of the embodiment of the present application.

In a seventh aspect, this application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program enables a computer to perform some or all of the steps described in any one of the methods of the first aspect of this application.

In an eighth aspect, the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform part or all of the steps described in any one of the methods in the second aspect of the embodiments of the present application.

In a ninth aspect, the present application provides a computer program product, wherein the computer program product comprises a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform some or all of the steps as described in any one of the methods of the first aspect of the embodiments of the present application. The computer program product may be a software installation package.

In a tenth aspect, embodiments of the present application provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, where the computer program is operable to cause a computer to perform some or all of the steps as described in any one of the methods of the second aspect of the embodiments of the present application. The computer program product may be a software installation package.

It can be seen that, in the embodiment of the present application, the transmission start position of the initial transmission block of the physical uplink shared channel is determined according to the transmission configuration information, and the data to be transmitted is transmitted according to the transmission start position of the initial transmission block, so as to improve the spatial diversity gain of multiple TRPs in data transmission and improve the reliability of data transmission.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of an example communication system provided by an embodiment of the present application;

fig. 2A is a schematic flow chart of data transmission according to an embodiment of the present application;

FIG. 2B is a schematic diagram of nominal repeat transmission based on switching of nominal repeat receiving nodes, where the redundancy version sequence is {0, 0}, the mapping of the receiving nodes is a first mapping, and the mapping is a first mapping, according to an embodiment of the present application;

FIG. 2C is a diagram of a redundancy version sequence {0,0,0,0}, a receiving node mapped as a first mapping, and two last nominal retransmission transmissions of the nominal retransmission transmissions switched based on the actually repeated receiving node according to an embodiment of the present application;

FIG. 2D is a schematic diagram of nominal repeat transmission based on switching of nominal repeat receiving nodes, where the redundancy version sequence is {0, 0}, the receiving node is mapped as a second mapping, and the second mapping is the mapping according to an embodiment of the present application;

FIG. 2E is a diagram of a redundancy version sequence {0,0,0,0}, a receiving node mapped as a second mapping, and two last nominal retransmission in the nominal retransmission based on actual repeated receiving node switching according to an embodiment of the present application;

FIG. 2F is a diagram of nominal repeat transmission based on switching of a nominally repeated receiving node, wherein the redundancy version number is {0,3,0,3}, the mapping of the receiving node is a first mapping, and an embodiment of the present application provides a redundancy version number of {0,3,0,3};

FIG. 2G is a diagram of a redundancy version sequence {0,3,0,3}, a receiving node mapped as a first mapping, and two last nominal retransmission in the nominal retransmission based on actual repeated receiving node switching according to an embodiment of the present application;

FIG. 2H is a schematic diagram of a transmission with a redundancy version sequence of {0,3,0,3}, a receiving node mapped as a second mapping, and a last nominal repetition in a nominal repetition transmission switched based on the nominal repetition receiving node as an actual repetition according to an embodiment of the present application;

fig. 3 is a schematic flow chart of data transmission according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 6 is a block diagram illustrating functional units of a data transmission apparatus according to an embodiment of the present application;

fig. 7 is a block diagram illustrating functional units of a data transmission apparatus according to an embodiment of the present disclosure.

Detailed Description

In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first," "second," and the like in the description and claims of the present application and in the foregoing drawings are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The technical solution of the embodiment of the present application may be applied to the example communication system 100 shown in fig. 1, where the example communication system 100 includes a terminal 110 and a network device 120, and the terminal 110 is communicatively connected to the network device 120.

The example communication system 100 may be, for example: non-Terrestrial communication Network (NTN) systems, global system for mobile communications (GSM) systems, code Division Multiple Access (CDMA) systems, wideband Code Division Multiple Access (WCDMA) systems, general Packet Radio Service (GPRS), long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD), universal mobile telecommunications system (universal mobile telecommunications system, UMTS), world wide internet access (WiMAX) systems, future radio systems, etc.

A terminal 110 in the embodiments of the subject application may refer to a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user device. The terminal may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a relay device, a vehicle-mounted device, a wearable device, a terminal in a future 5G network or a terminal in a future evolved Public Land Mobile Network (PLMN), and the like, which are not limited in this embodiment.

The network device 120 in this embodiment may be a device for communicating with a terminal, and the network device may be a Base Transceiver Station (BTS) in a global system for mobile communications (GSM) system or a Code Division Multiple Access (CDMA) system, may also be a base station (NB, nodeB) in a Wideband Code Division Multiple Access (WCDMA) system, may also be an evolved NodeB (eNB, or eNodeB) in an LTE system, may also be a cloud radio access network (cloud radio access network, CRAN), or the network device may be a relay device, an access point, a vehicle-mounted device, a wearable device, and a network device in a future 5G network or a network device in a future evolved PLMN network, one or a group (including multiple antenna panels) of base stations in a 5G system, or may also be a network node forming a gNB or a transmission point, such as a baseband unit (BBU) or a Distributed Unit (DU), and the embodiments of the present application are not limited.

In some deployments, the gNB may include Centralized Units (CUs) and DUs. The gNB may also include an Active Antenna Unit (AAU). The CU implements part of the function of the gNB, and the DU implements part of the function of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implementing functions of a Radio Resource Control (RRC) layer and a Packet Data Convergence Protocol (PDCP) layer. The DU is responsible for processing a physical layer protocol and a real-time service, and implements functions of a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a Physical (PHY) layer. The AAU implements part of the physical layer processing functions, radio frequency processing and active antenna related functions. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, the higher layer signaling, such as the RRC layer signaling, may also be considered to be transmitted by the DU or by the DU + AAU under this architecture. It is to be understood that the network device may be a device comprising one or more of a CU node, a DU node, an AAU node. In addition, the CU may be divided into network devices in an access network (RAN), or may be divided into network devices in a Core Network (CN), which is not limited in this application.

In the embodiment of the present application, the terminal 110 or the network device 120 includes a hardware layer, an operating system layer running on top of the hardware layer, and an application layer running on top of the operating system layer. The hardware layer includes hardware such as a Central Processing Unit (CPU), a Memory Management Unit (MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processing through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address list, word processing software, instant messaging software and the like. Furthermore, the embodiment of the present application does not particularly limit the specific structure of the execution main body of the method provided by the embodiment of the present application, as long as the communication can be performed according to the method provided by the embodiment of the present application by running the program recorded with the code of the method provided by the embodiment of the present application, for example, the execution main body of the method provided by the embodiment of the present application may be a terminal, or a functional module in the terminal that can call the program and execute the program.

With the explosive increase of the number of terminal devices and the improvement of the network delay requirement of users, an authorization-free Transmission method is introduced into the NR, that is, the network device divides one or more authorization-free Transmission areas (GFTA) for the terminal devices, and the terminal devices directly send uplink data in the authorization-free Transmission areas without going through the process from the service request to the network device uplink authorization.

In the NR system, coordinated Multiple Points Transmission/Reception (CoMP) is an effective technique for increasing a data Transmission rate, and is also called Transmission and Reception Point (TRP) Transmission.

At present, multi-TRP transmission only enhances downlink data transmission of an ultra-reliable and low latency communication (URLLC) system and an enhanced mobile broadband (eMBB) system, and does not enhance uplink data transmission of an unlicensed physical uplink shared channel of the URLLC system and the eMBB system.

In Downlink PDSCH transmission based on multiple transmitting and receiving nodes, mapping of Downlink Physical Downlink Shared Channel (PDSCH) transmission data on different transmitting and receiving nodes TRP is divided into two ways: seqmapping mapping mode: the first and second PDSCH transmissions are mapped on TRP1, the third and fourth PDSCH transmissions are mapped on TRP2, and the subsequent PDSCH transmissions are carried out in sequence; cycMapping mapping mode: the first and second PDSCH transmissions are mapped on TRP1 and TRP2, respectively, and subsequent PDSCH transmissions are performed in sequence.

In the transmission of an Uplink Physical Uplink Shared Channel (PUSCH) based on multiple receiving and transmitting nodes, the mode of an Uplink PUSCH for transmitting data corresponding to different receiving and transmitting nodes TRP is similar to the mode of a downlink PDSCH for mapping the data on different receiving and transmitting nodes TRP, and the mode of an Uplink PUSCH for transmitting data corresponding to different receiving and transmitting nodes TRP is divided into two modes, namely a first mapping mode: the first and second PUSCH transmissions correspond to a first transceiving node TRP1, the third and fourth PUSCH transmissions correspond to a second transceiving node TRP2, and the subsequent transmissions are performed in sequence. The second mapping mode is as follows: the first and second transmissions of the PUSCH correspond to TRP1 and TRP2, respectively, and the subsequent transmissions of the PUSCH are performed sequentially.

In uplink PUSCH transmission of URLLC, at present, K (K > = 1) times of nominal repetition of PUSCH are configured by a network device (i.e. uplink PUSCH transmission blocks configured with K times of repeated transmission are configured), and the network device configures a starting transmission symbol S and a transmission symbol length L for the first time of nominal repetition, and the following K-1 times of nominal repetition transmission are continuously transmitted in the following uplink time slot and all have the length L. And when the semi-statically configured downlink symbol or slot edge is encountered in each nominal repetition transmission process, the nominal repetition transmission process is divided into one or more actual repetitions.

TRP switches based on nominal repeats: and performing TRP transmission switching by taking each nominal repetition as a unit, and if a certain nominal repetition is divided into a plurality of actual repeated transmissions, performing the actual repeated transmissions on the same TRP. TRP switching based on actual repeats: TRP transmission switching is performed in units of each actual repetition.

Currently, when the unlicensed physical uplink shared channel supports multiple TRP transmission, in an available RV constraint scheme, when RV sequences are {0,3,0,3} and {0, 0}, uplink data transmission may be performed only on the last TRP, and it cannot be guaranteed that transmission covers multiple TRPs at the same time, and therefore spatial diversity performance gain due to multiple TRPs cannot be obtained.

In a multi-TRP scene, uplink data transmission is possibly performed on only 1 TRP, and is not performed on other TRPs, so that spatial diversity gain of the multi-TRP cannot be obtained. Therefore, a scheme is needed to improve spatial diversity gain of multiple TRPs for CG PUSCH data transmission and improve reliability of data transmission.

The following describes embodiments of the present application in detail.

In order to solve the foregoing problem, an embodiment of the present application provides a data transmission method, which is applied to a terminal, and as shown in fig. 2A specifically, the method may include, but is not limited to the following steps:

s201, obtaining transmission configuration information, wherein the transmission configuration information is used for indicating a data transmission configuration mode in a physical uplink shared channel.

Wherein the configuration information comprises: the method comprises the steps of redundancy version sequence information, mapping mode information of physical uplink shared channel transmission segments on a plurality of transceiving nodes and physical uplink shared channel transmission segment information. The redundancy version sequence information includes: a

first sequence

0,0 and a

second sequence

0,3,0, 3.

The mapping mode information of the physical uplink shared channel transmission segment on the plurality of transceiving nodes comprises: the method comprises the following steps that a first mapping mode and a second mapping mode are adopted, wherein the first mapping mode is that a first physical uplink shared channel and a second physical uplink shared channel are transmitted to correspond to a first receiving and sending node, a third physical uplink shared channel and a fourth physical uplink shared channel are transmitted to correspond to a second receiving and sending node, and the subsequent physical uplink shared channel transmission is carried out in sequence; the second mapping mode is that the first physical uplink shared channel and the second physical uplink shared channel are respectively mapped on the first transceiving node and the second transceiving node, subsequent physical uplink shared channel transmission is sequentially performed, and the first transceiving node and the second transceiving node are both transceiving nodes of network equipment.

The physical uplink shared channel transmission segmentation information comprises nominal repetition transmission information, and the nominal repetition transmission information comprises a starting transmission symbol S of nominal repetition configured by the network equipment, a transmission symbol length L of each nominal repetition and a nominal repetition number K.

S202, determining the transmission initial position of the initial transmission block of the physical uplink shared channel according to the transmission configuration information.

In a specific implementation, the determining, according to the transmission configuration information, a transmission start position of an initial transport block of a physical uplink shared channel may include: and determining the transmission starting position of the initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity of the last transceiving node corresponding to the transmission block in the physical uplink shared channel.

In a specific implementation, the determining, according to the transmission configuration information, a transmission start position of an initial transport block of a physical uplink shared channel may include: and determining the transmission starting position of the initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity corresponding to the last nominal repetition by each of the plurality of receiving and transmitting nodes corresponding to the transmission block in the physical uplink shared channel.

And S203, transmitting the data to be transmitted according to the transmission initial position of the initial transmission block.

In a specific implementation, when the uplink data transmission mode is grant-free (CG) Physical Uplink Shared Channel (PUSCH) transmission, the terminal sends uplink data on the PUSCH periodically. The physical uplink shared channel transmission is determined by the following specific steps: and configuring the transmission type of the unlicensed physical uplink shared channel according to a field rrc-configurable uplink grant in the configurable grant configie. If the field is configured, a first type (type 1) is authorized for configuration, and if the field is not configured, a second type (type 2) is authorized for configuration. The specific steps of configuring the authorization type 1 are as follows: configuring, by Radio Resource Control (RRC) of the network device, configuredrentconfigie through higher layer signaling; the specific steps for configuring the authorization type 2 are as follows: downlink Control Information (DCI) is used to instruct activation and deactivation of uplink unlicensed, and parameters required by the DCI are configured by config grant configie.

It can be seen that, in the embodiment of the present application, the transmission start position of the initial transmission block of the physical uplink shared channel is determined according to the transmission configuration information, and the data to be transmitted is transmitted according to the transmission start position of the initial transmission block, so that the spatial diversity gain of multiple TRPs in data transmission is improved, and the reliability of data transmission is improved.

In one possible example, the determining, according to the transmission configuration information, a transmission start position of an initial transport block of a physical uplink shared channel includes: and determining the transmission starting position of the initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity of the last transceiving node corresponding to the transmission block in the physical uplink shared channel.

In a specific implementation, a transmission start position of an initial transmission block of a physical uplink shared channel is determined according to redundancy version sequence information in the transmission configuration information, mapping mode information of a physical uplink shared channel transmission segment on a plurality of transceiving nodes, physical uplink shared channel transmission segment information, and an actual repeated transmission opportunity of a last transceiving node corresponding to a transmission block in the physical uplink shared channel.

It can be seen that, in the embodiment of the present application, the transmission start position of the initial transport block of the physical uplink shared channel is determined according to the transmission configuration information, so as to improve the spatial diversity gain of multiple TRPs for data transmission and improve the reliability of data transmission.

In one possible example, the transmission configuration information includes redundancy version sequence information, mapping mode information of physical uplink shared channel transmission segments on multiple transceiving nodes, and physical uplink shared channel transmission segment information.

In one possible example, the redundancy version sequence information includes: a first sequence of {0, 0} and a second sequence of {0,3,0,3}.

In one possible example, the mapping information of the segment of the physical uplink shared channel transmission on the plurality of transceiving nodes includes: the method comprises the following steps that a first mapping mode and a second mapping mode are adopted, wherein the first mapping mode is that a first physical uplink shared channel and a second physical uplink shared channel are transmitted to correspond to a first receiving and sending node, a third physical uplink shared channel and a fourth physical uplink shared channel are transmitted to correspond to a second receiving and sending node, and the subsequent physical uplink shared channel transmission is carried out in sequence; the second mapping mode is that the first physical uplink shared channel and the second physical uplink shared channel are respectively mapped on the first transceiving node and the second transceiving node, subsequent physical uplink shared channel transmission is sequentially performed, and the first transceiving node and the second transceiving node are both transceiving nodes of network equipment.

In one possible example, the segment information of physical uplink shared channel transmission includes nominal repeat transmission information, which includes a starting transmission symbol S of a nominal repeat configured by the network device, a transmission symbol length L of each nominal repeat, and a nominal repeat number K.

In one possible example, the redundancy version sequence information is the first sequence {0, 0}; the transmission start position of the initial transmission block is as follows: and the transmission blocks corresponding to the actual repeated transmission opportunity except the actual repeated transmission opportunity corresponding to the last transceiving node under the condition that the K is greater than or equal to the first numerical value.

Wherein the first numerical value may be a positive integer greater than or equal to 8.

For example, when the redundancy version sequence information is the first sequence {0, 0}, and the mapping information of the segment for pdsch transmission on the plurality of transceiving nodes is the first mapping, and the segment information for pdsch transmission includes that the length L of the transmission symbol of each nominal repetition is 6 and the number K of nominal repetitions is 8, the data transmission configuration in the pdsch is shown in fig. 2B, which is a schematic diagram of nominal repetition transmission with the redundancy version sequence {0, 0}, the mapping of the receiving node being the first mapping, and the switching of the receiving node based on the nominal repetitions,

at this time, the last transceiving node is the second transceiving node TRP2, PUSCH transmission may not start at the actual repetition of the 7 th nominal repetition and the actual repetition of the 8 th nominal repetition corresponding to the last transceiving node TRP2, may start at the latest at the 6 th nominal repetition corresponding to the first receiving node, that is, a transmission opportunity corresponding to the actual repetition of the 7 th nominal repetition and a transmission opportunity corresponding to the actual repetition of the 8 th nominal repetition corresponding to the last transceiving node TRP2 may not be used as the transmission start position of the initial transmission block for PUSCH transmission, and any one of the transmission opportunities of the actual repetitions of the 1 st to 6 th nominal repetitions may be used as the transmission start position of the initial transmission block for PUSCH transmission.

For another example, when the redundancy version sequence information is the first sequence {0, 0}, the mapping scheme information of the segment for pdsch on the plurality of transceiving nodes is the first mapping scheme, and the segment information for pdsch includes that the transmission symbol length L of each nominal repetition is 6 and the nominal repetition number K is 8, the data transmission configuration scheme in the pdsch is as shown in fig. 2C, where fig. 2C is a schematic diagram of the redundancy version sequence {0, 0}, the mapping scheme of the receiving node is the first mapping scheme, and the last two nominal repetition transmissions in the nominal repetition transmission based on the actually repeated receiving node switching are as shown in fig. 2C.

At this time, the last transceiving node is the second transceiving node TRP2, the PUSCH transmission may not start at the actual repetition on the 8 th nominal repetition corresponding to the last transceiving node TRP2, and may start at the latest at the 7.1 th actual repetition in the 7 th nominal repetition corresponding to the first receiving node, that is, the transmission timing corresponding to the actual repetition on the 8 th nominal repetition corresponding to the last transceiving node TRP2 may not be the transmission start position of the initial transmission block of the PUSCH transmission, and any one of the transmission timings of the actual repetition on the 1 st to 7 th nominal repetitions may be the transmission start position of the initial transmission block of the PUSCH transmission.

For another example, when the redundancy version sequence information is the first sequence {0, 0}, the mapping scheme information of the segment for pdsch at the plurality of transceiving nodes is the second mapping scheme, and the segment information for pdsch includes that the transmission symbol length L of each nominal repetition is 6 and the nominal repetition number K is 8, the data transmission configuration scheme in the pdsch is shown in fig. 2D, which is a schematic diagram of nominal repetition transmission in which the redundancy version sequence is {0, 0}, the mapping scheme of the receiving node is the second mapping scheme, and the receiving node is switched based on the nominal repetition, as shown in fig. 2D.

At this time, the last transceiver node is the second transceiver node TRP2, PUSCH transmission may not start at the actual repetition on the 8 th nominal repetition corresponding to TRP2, and may start at the latest at the 7 th nominal repetition, that is, a transmission timing corresponding to the actual repetition on the 8 th nominal repetition corresponding to the last transceiver node TRP2 may not be used as the transmission start position of the initial transmission block for PUSCH transmission, and any one of the transmission timings on the 1 st to 7 th nominal repetitions may be used as the transmission start position of the initial transmission block for PUSCH transmission.

For another example, when the redundancy version sequence information is the first sequence {0, 0}, the mapping scheme information of the segment for pdsch transmission on the plurality of transceiving nodes is the second mapping scheme, and the segment information for pdsch transmission includes that the transmission symbol length L of each nominal repetition is 6 and the nominal repetition number K is 8, the data transmission configuration scheme in the pdsch is as shown in fig. 2E, and fig. 2E is a schematic diagram of the redundancy version sequence {0, 0}, the mapping scheme of the receiving node being the second mapping scheme, and the last two nominal repetition transmissions in the nominal repetition transmission based on the actually repeated switching of the receiving node.

At this time, the last transceiving node is the second transceiving node TRP2, PUSCH transmission may not start at the 8.2 th actual repetition on the 8 th nominal repetition corresponding to the last transceiving node TRP2, may start at the 8.1 th actual repetition in the 8 th nominal repetition corresponding to the first receiving node at the latest, that is, a transmission opportunity corresponding to the 8.2 th actual repetition on the 8 th nominal repetition corresponding to the last transceiving node TRP2 may not be used as the transmission start position of the initial transmission block of PUSCH transmission, and any one of the transmission opportunities of the actual repetitions on the 1 st to 7 th nominal repetitions and the transmission opportunity of the 8.1 th actual repetition in the 8 th nominal repetition may be used as the transmission start position of the initial transmission block of PUSCH transmission.

It can be seen that, in the embodiment of the present application, the transmission start position of the initial transmission block of the physical uplink shared channel is determined according to the transmission configuration information and the actual repeated transmission opportunity of the last transceiving node corresponding to the transmission block in the physical uplink shared channel, and the data to be transmitted is transmitted according to the transmission start position of the initial transmission block, so as to improve the spatial diversity gain of multiple TRPs in data transmission and improve the reliability of data transmission.

In one possible example, the redundancy version sequence information is the first sequence {0,3,0,3}; the transmission start position of the initial transmission block is as follows: and the redundancy version is 0 and the transmission blocks corresponding to the actual repeated transmission opportunity except the actual repeated transmission opportunity corresponding to the last transceiving node under the condition that the K is greater than or equal to the first numerical value.

In a specific implementation, for example, when the redundancy version sequence information is the first sequence {0,3,0,3}, and the mapping manner information of the pusch transmission segment on the multiple transceiving nodes is the first mapping manner, and the pusch transmission segment information includes that the transmission symbol length L of each nominal repetition is 6 and the nominal repetition number K is 8, the data transmission configuration manner in the pusch is as shown in fig. 2F, and fig. 2F is a schematic diagram of the nominal repetition transmission based on the switching of the receiving node of the nominal repetition, where the last nominal repetition is divided into two actual repetitions, and the mapping manner of the pusch transmission segment is the first mapping manner, and the nominal repetition number K is 8.

In this case, the plurality of transmitting and receiving nodes include: a first transceiving node and a second transceiving node. The last transceiving node is a second transceiving node TRP2, PUSCH transmission may not start with the actual repetition at the 7 th nominal repetition and the actual repetition at the 8 th nominal repetition corresponding to the last transceiving node TRP2 and the actual repetition at the nominal repetition RV unequal to 0, and may start at the latest with the 5th nominal repetition at RV =0 corresponding to TRP1, that is, any one of the transmission occasions of the actual repetition of the nominal repetition of RV =0 in the 1 st to 6 th nominal repetitions may be used as the transmission start position of the initial transmission block of PUSCH transmission.

For another example, when the redundancy version sequence information is the first sequence {0,3,0,3}, and the mapping information of the segment for pdcch transmission on the plurality of transceiving nodes is the first mapping, and the segment for pdcch transmission information includes that the length L of the transmission symbol for each nominal repetition is 6 and the nominal repetition number K is 8, the data transmission configuration in the pdcch is as shown in fig. 2G, and fig. 2G is a schematic diagram of the redundancy version sequence {0,3,0,3}, the mapping of the receiving node being the first mapping, and the last two nominal repetition transmissions in the nominal repetition transmissions switched based on the actually repeated receiving nodes.

At this time, the last transceiving node is the second transceiving node TRP2, and PUSCH transmission may not start with the 8.1 th and 8.2 th actual repetitions at the 8 th nominal repetition corresponding to the last transceiving node TRP2, and may start with the actual repetition of RV =0 at the latest in the 6 th nominal repetition corresponding to the second receiving node.

For another example, when the redundancy version sequence information is the first sequence {0,3,0,3}, the mapping scheme information of the segment for pdsch on the plurality of transceiving nodes is the first mapping scheme, and the segment information for pdsch includes that the transmission symbol length L of each nominal repetition is 6 and the nominal repetition number K is 8, the data transmission configuration scheme in the pdsch is as shown in fig. 2H, where fig. 2H is a transmission diagram in which the redundancy version sequence is {0,3,0,3}, the mapping scheme of the receiving node is the first mapping scheme, and the last nominal repetition in the nominal repetition transmission based on the switching of the receiving node with the nominal repetition is an actual repetition.

At this time, the last transceiving node is the second transceiving node TRP2, the PUSCH transmission may not begin with the actual repetition on the 8 th nominal repetition corresponding to the last transceiving node TRP2, and may begin with the actual repetition on the 7 th nominal repetition of RV =0 at the latest, that is, any one of the transmission timings of the actual repetition of the nominal repetition of RV =0 on the 1 st to 7 th nominal repetitions may be used as the transmission start position of the initial transmission block of the PUSCH transmission.

For another example, when the redundancy version sequence information is the first sequence {0,3,0,3}, the mapping scheme information of the segment for pdsch at the plurality of transceiving nodes is the second mapping scheme, and the segment information for pdsch includes that the length L of the transmission symbol for each nominal repetition is 6 and the number K of nominal repetitions is 8, the data transmission configuration scheme in the segment for pdsch is the last two nominal repetitions of the nominal repetition transmission switched by the receiving node with the redundancy version sequence {0,3,0,3}, the mapping scheme of the receiving node is the second mapping scheme, and the switching is based on the actually repeated receiving node.

At this time, the last transceiving node is the second transceiving node TRP2, and PUSCH transmission may not start with the 8.2 actual repetition with RV unequal to 0 at the 8 th nominal repetition corresponding to the last transceiving node TRP2, and may start at the latest with the 7.1 actual repetition with RV =0 in the 7 th nominal repetition corresponding to the first receiving node.

It can be seen that, in the embodiment of the present application, the transmission start position of the initial transmission block of the physical uplink shared channel is determined according to the transmission configuration information and the actual repeated transmission opportunity of the last transceiving node corresponding to the transmission block in the physical uplink shared channel, and the data to be transmitted is transmitted according to the transmission start position of the initial transmission block, so as to improve the spatial diversity gain of multiple TRPs for data transmission and improve the reliability of data transmission.

In one possible example, the determining, according to the transmission configuration information, a transmission start position of an initial transport block of a physical uplink shared channel includes: and determining the transmission starting position of the initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity corresponding to the last nominal repetition by each of the plurality of receiving and transmitting nodes corresponding to the transmission block in the physical uplink shared channel.

In one possible example, the redundancy version sequence information includes: a

first sequence

0,0 and a

second sequence

0,3,0, 3.

In one possible example, the mapping mode information of the physical uplink shared channel transmission segment on the plurality of transceiving nodes includes: the method comprises the following steps that a first mapping mode and a second mapping mode are adopted, wherein the first mapping mode is a mode that first time physical uplink shared channel transmission and second time physical uplink shared channel transmission correspond to a first receiving and sending node, third time physical uplink shared channel transmission and fourth time physical uplink shared channel transmission correspond to a second receiving and sending node, and subsequent transmission is carried out in sequence; the second mapping mode is a mode that the first time of physical uplink shared channel transmission and the second time of physical uplink shared channel transmission are respectively mapped on the first transceiving node and the second transceiving node, and subsequent transmission is performed in sequence, wherein the first transceiving node and the second transceiving node are both transceiving nodes of network equipment.

In one possible example, the redundancy version sequence information is the first sequence {0, 0}; the transmission start position of the initial transmission block is as follows: and the transmission blocks corresponding to the actual repeated transmission occasions except the actual repeated transmission occasion corresponding to the last nominal repeated transmission occasion are corresponding to each transceiving node in the plurality of transceiving nodes under the condition that the K is greater than or equal to the first numerical value.

For example, in the case that the redundancy version sequence information is the first sequence {0, 0}, the mapping manner information of the pusch transmission segment on the plurality of transceiving nodes is the first mapping manner, and the pusch transmission segment information includes that the transmission symbol length L of each nominal repetition is 6 and the nominal repetition number K is 8, as shown in fig. 2B,

at this time, the last transceiving node TRP2 is the second transceiving node TRP2, and PUSCH transmission may not start with: the actual repetition on the last nominal repetition (i.e. the 6 th nominal repetition) corresponding to TRP1 and the actual repetition on the last nominal repetition (i.e. the 8 th nominal repetition) corresponding to TRP2 may start at the latest with the 7 th nominal repetition corresponding to TRP2, i.e. the transmission opportunity corresponding to the actual repetition on the last nominal repetition corresponding to each of the plurality of transceiving nodes cannot be taken as the transmission start position of the initial transport block of the PUSCH transmission, and any one of the transmission opportunities of the actual repetitions on the 1 st to 5th and 7 th nominal repetitions may be taken as the transmission start position of the initial transport block of the PUSCH transmission.

For another example, in the case that the redundancy version sequence information is the first sequence {0, 0}, the mapping manner information of the pusch transmission segment on the plurality of transceiving nodes is the first mapping manner, and the pusch transmission segment information includes that the transmission symbol length L of each nominal repetition is 6 and the nominal repetition number K is 8, the data transmission configuration manner in the pusch is as shown in fig. 2C.

At this time, the last transceiver node is the second transceiver node TRP2, and PUSCH transmission may not start with the actual repetition of the last nominal repetition corresponding to each transceiver node, that is, the 7.2 th actual repetition of the 7 th nominal repetition corresponding to TRP1 and the 8.2 th actual repetition of the 8 th nominal repetition corresponding to TRP2, and may start with the 8.1 th actual repetition of the 8 th nominal repetition corresponding to the second receiver node at the latest.

For another example, in the case that the redundancy version sequence information is the first sequence {0, 0}, the mapping information of the segment for pdsch transmission on the plurality of transceiving nodes is the second mapping, and the segment for pdsch transmission information includes a transmission symbol length L of each nominal repetition of 6 and a nominal repetition number K of 8, as shown in fig. 2D,

at this time, the last transceiving node TRP2 is the second transceiving node TRP2, and PUSCH transmission may not start with: an actual repetition on the last nominal repetition (i.e. the 6 th nominal repetition) corresponding to TRP1 and an actual repetition on the last nominal repetition (i.e. the 8 th nominal repetition) corresponding to TRP2 may begin at the latest with the 7 th nominal repetition corresponding to TRP2, that is, a transmission opportunity corresponding to the actual repetition on the last nominal repetition corresponding to each of the plurality of transceiving nodes cannot be used as a transmission start position of an initial transport block for PUSCH transmission, and any one of the transmission opportunities of the actual repetitions on the 1 st to 5th and 7 th nominal repetitions may be used as a transmission start position of an initial transport block for PUSCH transmission.

For another example, in the case that the redundancy version sequence information is the first sequence {0, 0}, the mapping manner information of the pusch transmission segment on the plurality of transceiving nodes is the second mapping manner, and the pusch transmission segment information includes that the transmission symbol length L of each nominal repetition is 6 and the nominal repetition number K is 8, the data transmission configuration manner in the pusch is as shown in fig. 2E.

At this time, the last transceiving node is a second transceiving node TRP2, and PUSCH transmission may not start with the actual repetition of the last nominal repetition corresponding to each respective transceiving node, i.e., the 7.2 actual repetition of the 7 th nominal repetition corresponding to TRP1 and the 8.2 actual repetition of the 8 th nominal repetition corresponding to TRP2, and may start with the 8.1 actual repetition of the 8 th nominal repetition corresponding to the second receiving node at the latest.

It can be seen that, in the embodiment of the present application, the transmission start position of the initial transmission block of the physical uplink shared channel is determined according to the transmission configuration information and the actual repeated transmission time corresponding to the last nominal repetition by each of the multiple transceiving nodes corresponding to the transmission block in the physical uplink shared channel, so as to improve the spatial diversity gain of multiple TRPs for data transmission and improve the reliability of data transmission.

In one possible example, the redundancy version sequence information is the first sequence {0,3,0,3}; the transmission start position of the initial transmission block is as follows: and the redundancy version is 0, and the transmission blocks corresponding to the actual repeated transmission occasions except the actual repeated transmission occasion corresponding to the last nominal repetition are corresponding to each transceiving node in the plurality of transceiving nodes under the condition that the K is greater than or equal to the first numerical value.

For example, in the case that the redundancy version sequence information is the first sequence {0,3,0,3}, and the mapping information of the segment for pdsch transmission on the plurality of transceiving nodes is the first mapping, and the segment for pdsch transmission information includes that the length L of the transmission symbol of each nominal repetition is 6 and the number K of nominal repetitions is 8, the data transmission configuration in the pdsch is as shown in fig. 2F,

at this time, the plurality of transceiving nodes include a first transceiving node TRP1 and a second transceiving node TRP2, and PUSCH transmission may not start with: an actual repetition on the last nominal repetition of RV =0 (i.e. the 5th nominal repetition) corresponding to TRP1 and an actual repetition on the last nominal repetition of RV =0 (i.e. the 8 th nominal repetition) corresponding to TRP2 may start at the latest from the 7 th nominal repetition of RV =0 corresponding to TRP2, i.e. a transmission timing corresponding to the last nominal repetition corresponding to each of the plurality of transceiving nodes cannot be used as a transmission start position of an initial transmission block of PUSCH transmission, and any one of the transmission timings of the actual repetitions on the 1 st, 3 rd and 7 th nominal repetitions of RV =0 may be used as a transmission start position of an initial transmission block of PUSCH transmission.

For another example, in the case that the redundancy version sequence information is the first sequence {0,3,0,3}, the mapping manner information of the pusch transmission segment on the plurality of transceiving nodes is the first mapping manner, and the pusch transmission segment information includes that the transmission symbol length L of each nominal repetition is 6 and the nominal repetition number K is 8, the data transmission configuration manner in the pusch is as shown in fig. 2G.

At this time, the last transceiving node is the second transceiving node TRP2, the PUSCH transmission may not start with the 8.1 th of RV =0 and the 8.2 th of actual repetition with RV unequal to 0 on the 8 th nominal repetition corresponding to the last nominal repetition of TRP2, and the 7.1 th of RV =0 and the 7.2 th of actual repetition with RV unequal to 0 on the 7 th nominal repetition corresponding to TRP 1.

For another example, in the case that the redundancy version sequence information is the first sequence {0,3,0,3}, the mapping manner information of the pusch transmission segment on the plurality of transceiving nodes is the second mapping manner, and the pusch transmission segment information includes that the transmission symbol length L of each nominal repetition is 6 and the nominal repetition number K is 8, the data transmission configuration manner in the pusch is as shown in fig. 2H.

At this time, the 8 th nominal repetition is split into two actual repetitions, the first and second transceiving nodes TRP1 and TRP2 being included on the plurality of transceiving nodes, and PUSCH transmission may not start with: an actual repetition on the last nominal repetition of RV =0 (i.e. the 7 th nominal repetition) corresponding to TRP1 and an actual repetition on the last nominal repetition of RV =0 (i.e. the 8 th nominal repetition) corresponding to TRP2, PUSCH transmission may start at the latest with the 5th nominal repetition of RV =0 corresponding to TRP1, i.e. a transmission opportunity corresponding to the actual repetition on the last nominal repetition corresponding to each of the plurality of transceiving nodes cannot be used as a transmission start position of an initial transmission block of PUSCH transmission, and any one of the transmission opportunities of the actual repetitions on the 1 st, 3 rd and 5th nominal repetitions of RV =0 may be used as a transmission start position of the initial transmission block of PUSCH transmission.

It can be seen that, in the embodiment of the present application, according to the transmission configuration information and the actual repeated transmission opportunity corresponding to the last nominal repetition by each of the multiple transceiving nodes corresponding to the transmission block in the physical uplink shared channel, the transmission start position of the initial transmission block of the physical uplink shared channel is determined, so as to improve the spatial diversity gain of multiple TRPs for data transmission and improve the reliability of data transmission.

In one possible example, the method further comprises: and determining a transmission initial position mode of an initial transmission block of the physical uplink shared channel.

In one possible example, the determining a transmission start position manner of an initial transport block of the physical uplink shared channel includes: determining a first indication domain in the transmission configuration information; and determining a transmission starting position of an initial transmission block of the physical uplink shared channel according to the first indication domain.

Wherein the first indication field comprises: a newly added indication field or a multiplexing indication field. The newly added indication domain comprises a newly added indication domain in the wireless control resource. For example, the newly added indication field is RRC signaling of 1 bit newly added in the configgrad configie, and the RRC signaling is named (but not limited to) as configuredgrantonfigug-rvstartconstrainnt-R17. The multiplexing indication field includes a transmission configuration indication mapping indication field, for example, the mode of determining the transmission start position of the initial transport block of the physical uplink shared channel is bound with RRC signaling reptcimeping, for example, the multiplexing indication field is configured as an application in SeqMapping: the terminal determines a mode of a transmission initial position of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity of the last transceiving node corresponding to the transmission block in the physical uplink shared channel; or, the terminal determines a transmission start position of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and an actual repeated transmission opportunity corresponding to the last nominal repetition by each of a plurality of transceiving nodes corresponding to the transmission block in the physical uplink shared channel.

When the reptcimaping is configured as cycmapiping, a first scheme is applied, in which the content of determining the starting position of the initial transport block in the PUSCH transmission is:

the initial transmission of the initial transport block may begin with: if the RV sequence is {0,2,3,1}, it can only start at the transmission timing on the first actual repetition; if the RV sequence is {0,3,0,3}, any transmission opportunity corresponding to an actual repetition of RV =0 can be started, except for the actual repetition on the last nominal repetition transmission when K > = 8; if the RV sequence is {0,0,0,0}, one can start at the transmission opportunity on any actual repetition except the actual repetition transmission opportunity on the last nominal repetition transmission when K > = 8.

It can be seen that, in the embodiment of the present application, the transmission start position of the initial transport block of the physical uplink shared channel is determined through the first indication field, and a manner of determining the transmission start position of the initial transport block of the physical uplink shared channel is flexibly changed, so as to improve spatial diversity gain of multiple TRPs for data transmission and improve reliability of data transmission.

In a possible example, the manner in which the terminal determines the transmission start position of the initial transport block of the physical uplink shared channel specifically refers to: and the terminal determines a transmission starting position of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity of the last transceiving node corresponding to the transmission block in the physical uplink shared channel.

In a possible example, the manner in which the terminal determines the transmission start position of the initial transport block of the physical uplink shared channel specifically refers to: and the terminal determines a mode of a transmission starting position of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity corresponding to the last nominal repetition by each of the plurality of transceiving nodes corresponding to the transmission block in the physical uplink shared channel.

In a possible example, the determining, by the terminal, a transmission start position of an initial transport block of the physical uplink shared channel specifically includes: and under the condition that the uplink data transmission mode is the transmission of the authorization-free physical uplink shared channel, the terminal determines the transmission initial position of the initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity of the last transceiving node corresponding to the transmission block in the physical uplink shared channel.

In a specific implementation, when the uplink data transmission mode is unlicensed physical uplink shared channel transmission, the mode of determining the transmission start position of the initial transmission block of the physical uplink shared channel may be: and under the condition that the redundancy version sequence information is the first sequence {0, 0}, determining the transmission starting position of the initial transmission block, and carrying out PUSCH transmission according to the transmission starting position of the initial transmission block. Wherein, the transmission start position of the initial transmission block is: and the transmission blocks corresponding to the actual repeated transmission opportunity except the actual repeated transmission opportunity corresponding to the last transceiving node under the condition that the K is greater than or equal to the first numerical value. The first numerical value is a positive integer of 8 or more, and the first numerical value may be a positive integer of 8, 16, 32, or the like.

In a specific implementation, in a case that the uplink data transmission mode is grant-free physical uplink shared channel transmission, the determining of the transmission start position of the initial transmission block of the physical uplink shared channel may be: in the case where the redundancy version sequence information is the first sequence {0,3,0,3}; and determining the transmission initial position of the initial transmission block, and carrying out PUSCH transmission according to the transmission initial position of the initial transmission block. Wherein, the transmission start position of the initial transmission block is: and the redundancy version is 0 and the transmission blocks corresponding to the actual repeated transmission opportunity except the actual repeated transmission opportunity corresponding to the last transceiving node under the condition that the K is greater than or equal to the first numerical value. The first numerical value is a positive integer of 8 or more, and the first numerical value may be a positive integer of 8, 16, 32, or the like.

It can be seen that, in the embodiment of the present application, a mode of determining a transmission start position of an initial transmission block of a physical uplink shared channel is a designated mode under the condition of unlicensed physical uplink shared channel transmission, so that overhead of signaling resources is reduced, spatial diversity gain of multiple TRPs for data transmission is improved, and reliability of data transmission is improved.

In a possible example, the determining, by the terminal, a transmission start position of an initial transport block of the physical uplink shared channel specifically includes: and under the condition that the uplink data transmission mode is the transmission of the authorization-free physical uplink shared channel, the terminal determines the mode of the transmission starting position of the initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission time corresponding to the last nominal repetition by each of the plurality of receiving and transmitting nodes corresponding to the transmission block in the physical uplink shared channel.

In a specific implementation, when the uplink data transmission mode is unlicensed physical uplink shared channel transmission, the mode of determining the transmission start position of the initial transmission block of the physical uplink shared channel may be: and under the condition that the redundancy version sequence information is the first sequence {0, 0}, determining the transmission starting position of the initial transmission block, and carrying out PUSCH transmission according to the transmission starting position of the initial transmission block. Wherein, the transmission start position of the initial transmission block is: and the transmission blocks corresponding to the actual repeated transmission occasions except the actual repeated transmission occasion corresponding to the last nominal repeated transmission occasion are corresponding to each transceiving node in the plurality of transceiving nodes under the condition that the K is greater than or equal to the first numerical value. The first numerical value is a positive integer of 8 or more, and the first numerical value may be a positive integer of 8, 16, 32, or the like.

In a specific implementation, in a case that the uplink data transmission mode is grant-free physical uplink shared channel transmission, the determining of the transmission start position of the initial transmission block of the physical uplink shared channel may be: and under the condition that the redundancy version sequence information is the first sequence {0,3,0,3}, determining the transmission starting position of the initial transmission block, and carrying out PUSCH transmission according to the transmission starting position of the initial transmission block. Wherein, the transmission start position of the initial transmission block is: and the redundancy version is 0, and the transmission blocks corresponding to the actual repeated transmission occasions except the actual repeated transmission occasion corresponding to the last nominal repetition are corresponding to each transceiving node in the plurality of transceiving nodes under the condition that the K is greater than or equal to the first numerical value. The first numerical value is a positive integer of 8 or more, and the first numerical value may be a positive integer of 8, 16, 32, or the like.

It can be seen that, by determining the transmission start position of the initial transmission block of the physical uplink shared channel as a designated mode under the condition of the unlicensed physical uplink shared channel transmission, the overhead of signaling resources is reduced, so as to improve the spatial diversity gain of multiple TRPs for data transmission and improve the reliability of data transmission.

In one possible example, the actual repetitions include one or more actual repetitions into which each nominal repetition is divided during transmission.

Wherein the number of actual repetitions in each nominal repetition may be the same or may be different.

Relationship of a nominal repetition to an actual repetition of the nominal repetition the transmission symbol length of the nominal repetition H is less than the transmission symbol length of the nominal repetition L, where H may be a positive integer less than L.

Referring to fig. 3, fig. 3 is a schematic flowchart of a data transmission method provided in an embodiment of the present application, where the data transmission method is applied to a network device, and includes:

s301, configuring transmission configuration information, wherein the transmission configuration information comprises a target indication domain and a first indication domain.

The target indication field is used for indicating a configuration mode of data to be transmitted of a terminal on a physical uplink shared channel and a transmission starting position of the initial transmission block, and the first indication field is used for indicating a mode that the terminal determines the transmission starting position of the initial transmission block of the physical uplink shared channel

S302, the transmission configuration information is sent to the terminal.

It can be seen that, in the embodiment of the present application, the transmission configuration information is configured and sent to the terminal, so as to improve spatial diversity gain of multiple TRPs in uplink data transmission and improve reliability of data transmission.

In one possible example, the first indication field includes: a new indication field or a multiplexing indication field.

Wherein the first indication field comprises: a new indication field or a multiplexing indication field. The newly added indication domain comprises a newly added indication domain in the wireless control resource. For example, the newly added indication field is RRC signaling of 1 bit newly added in the configgrad configie, and the RRC signaling is named (but not limited to) as configuredgrantonfigug-rvstartconstrainnt-R17. The multiplexing indication field includes a transmission configuration indication mapping indication field, for example, the mode of determining the transmission start position of the initial transport block of the physical uplink shared channel is bound with RRC signaling reptcimeping, for example, the reptcimeping is configured as an application when SeqMapping: the terminal determines a mode of a transmission initial position of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity of the last transceiving node corresponding to the transmission block in the physical uplink shared channel; or, the terminal determines a transmission start position of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and an actual repeated transmission opportunity corresponding to the last nominal repetition by each of a plurality of transceiving nodes corresponding to the transmission block in the physical uplink shared channel.

In one possible example, the additional indicator field includes an additional indicator field in the radio control resource.

For example, the newly added indication field is 1-bit RRC signaling newly added in the configuredgradconfigie, and the RRC signaling is named (but not limited to) as Configuredgrantconfig-rvstartconstrainant-R17.

In one possible example, the multiplexing indication field includes a transmission configuration indication mapping indication field.

The multiplexing indication field includes a transmission configuration indication mapping indication field, for example, the mode of determining the transmission start position of the initial transport block of the physical uplink shared channel is bound with RRC signaling reptcimeping, for example, the reptcimeping is configured as an application when SeqMapping: the terminal determines a mode of a transmission initial position of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity of the last transceiving node corresponding to the transmission block in the physical uplink shared channel; or, the terminal determines a transmission start position of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and an actual repeated transmission opportunity corresponding to the last nominal repetition by each of a plurality of transceiving nodes corresponding to the transmission block in the physical uplink shared channel.

the initial transmission of the initial transport block may begin with: if the RV sequence is {0,2,3,1}, it can only start at the transmission timing on the first actual repetition; if the RV sequence is {0,3,0,3}, any transmission opportunity corresponding to an actual repetition of RV =0 can be started, except for the actual repetition on the last nominal repetition transmission when K > = 8; if the RV sequence is {0, 0}, one can start at any transmission opportunity on the actual repetition, except the actual repetition transmission opportunity on the last nominal repetition transmission when K > = 8.

In one possible example, the first indication field is a multiplexing indication field; the manner that the first indication field is used for indicating the terminal to determine the transmission start position of the initial transport block of the physical uplink shared channel specifically means that: the method for determining the transmission starting position of the initial transmission block of the physical uplink shared channel by the terminal is bound with a radio resource control signaling reptcimaping, and when the reptcimaping is configured as SeqMapping, the method comprises the following steps: the terminal determines a mode of a transmission initial position of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity of the last transceiving node corresponding to the transmission block in the physical uplink shared channel; or, the terminal determines a transmission start position of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and an actual repeated transmission opportunity corresponding to the last nominal repetition by each of a plurality of transceiving nodes corresponding to the transmission block in the physical uplink shared channel.

In one possible example, please refer to fig. 4, where fig. 4 is a schematic structural diagram of an electronic device 400 provided in an embodiment of the present application, as shown in the drawing, the electronic device 400 includes an application processor 410, a memory 420, a communication interface 430, and one or more programs 421, where the one or more programs 421 are stored in the memory 420 and configured to be executed by the application processor 410, and the one or more programs 421 include instructions for performing the following steps:

acquiring transmission configuration information, wherein the transmission configuration information is used for indicating a data transmission configuration mode in a physical uplink shared channel; determining a transmission starting position of an initial transmission block of a physical uplink shared channel according to the transmission configuration information; and transmitting the data to be transmitted according to the transmission initial position of the initial transmission block.

first sequence

0,0 and a

second sequence

0,3,0, 3.

In one possible example, the mapping mode information of the physical uplink shared channel transmission segment on the plurality of transceiving nodes includes: the method comprises the following steps that a first mapping mode and a second mapping mode are adopted, wherein the first mapping mode is that a first physical uplink shared channel and a second physical uplink shared channel are transmitted to correspond to a first receiving and sending node, a third physical uplink shared channel and a fourth physical uplink shared channel are transmitted to correspond to a second receiving and sending node, and the subsequent physical uplink shared channel transmission is carried out in sequence; the second mapping mode is that the first physical uplink shared channel and the second physical uplink shared channel are respectively mapped on the first transceiving node and the second transceiving node, subsequent physical uplink shared channel transmission is sequentially performed, and the first transceiving node and the second transceiving node are both transceiving nodes of network equipment.

In one possible example, the determining, according to the transmission configuration information, a transmission start position of an initial transport block of a physical uplink shared channel includes: and determining the transmission initial position of the initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity corresponding to the last nominal repetition by each of the plurality of transceiving nodes corresponding to the transmission block in the physical uplink shared channel.

first sequence

0,0 and a

second sequence

0,3,0, 3.

In one possible example, the mapping mode information of the physical uplink shared channel transmission segment on the plurality of transceiving nodes includes: the first mapping mode is a mode that a first time of physical uplink shared channel transmission and a second time of physical uplink shared channel transmission correspond to a first receiving and sending node, a third time of physical uplink shared channel transmission and a fourth time of physical uplink shared channel transmission correspond to a second receiving and sending node, and subsequent transmission is carried out in sequence; the second mapping mode is a mode that the first time of physical uplink shared channel transmission and the second time of physical uplink shared channel transmission are respectively mapped on the first transceiving node and the second transceiving node, and subsequent transmission is performed in sequence, wherein the first transceiving node and the second transceiving node are both transceiving nodes of network equipment.

In one possible example, the physical uplink shared channel transmission segment information includes nominal repetition transmission information including a starting transmission symbol S of a nominal repetition of a network equipment configuration, a transmission symbol length L of each nominal repetition, and a nominal repetition number K.

In one possible example, the redundancy version sequence information is the first sequence {0,3,0,3}; the transmission starting position of the initial transmission block is as follows: and the redundancy version is 0 and the transmission block corresponding to the actual repeated transmission opportunity except the actual repeated transmission time corresponding to the last nominal repetition by each of the plurality of transceiving nodes when the K is greater than or equal to the first numerical value.

In one possible example, the method further comprises: and determining a transmission starting position mode of the initial transmission block of the physical uplink shared channel.

In a possible example, the determining, by the terminal, a transmission start position of an initial transport block of the physical uplink shared channel specifically includes: and the terminal determines a transmission starting position of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity of the last transceiving node corresponding to the transmission block in the physical uplink shared channel.

In a possible example, the determining, by the terminal, a transmission start position of an initial transport block of the physical uplink shared channel specifically includes: and the terminal determines a transmission starting position mode of the initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity corresponding to the last nominal repetition by each receiving and transmitting node in the plurality of receiving and transmitting nodes corresponding to the transmission block in the physical uplink shared channel.

In a possible example, the manner in which the terminal determines the transmission start position of the initial transport block of the physical uplink shared channel specifically refers to: and under the condition that the uplink data transmission mode is the transmission of the authorization-free physical uplink shared channel, the terminal determines the transmission initial position of the initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity of the last transceiving node corresponding to the transmission block in the physical uplink shared channel.

In a possible example, the determining, by the terminal, a transmission start position of an initial transport block of the physical uplink shared channel specifically includes: and under the condition that the uplink data transmission mode is the transmission of the authorization-free physical uplink shared channel, the terminal determines the mode of the transmission initial position of the initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission time corresponding to the last nominal repetition by each of a plurality of receiving and transmitting nodes corresponding to the transmission block in the physical uplink shared channel.

In one possible example, please refer to fig. 5, fig. 5 is a schematic structural diagram of an electronic device 500 according to an embodiment of the present application, and as shown in the figure, the electronic device 500 includes an application processor 510, a memory 520, a communication interface 530, and one or more programs 521, where the one or more programs 521 are stored in the memory 520 and configured to be executed by the application processor 510, and the one or more programs 521 include instructions for performing the following steps:

configuring transmission configuration information, wherein a target indication domain and a first indication domain of the transmission configuration information are used for indicating a configuration mode of data to be transmitted of a terminal on a physical uplink shared channel and a transmission initial position of an initial transmission block, and the first indication domain is used for indicating a mode of determining the transmission initial position of the initial transmission block of the physical uplink shared channel by the terminal; and sending the transmission configuration information to the terminal.

In one possible example, the first indication field comprises: a newly added indication field or a multiplexing indication field.

In one possible example, the new indication field includes a new indication field in the radio control resource.

The above description has introduced the solution of the embodiment of the present application mainly from the perspective of the method-side implementation process. It is understood that the electronic device comprises corresponding hardware structures and/or software modules for performing the respective functions in order to realize the above-mentioned functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments provided herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the electronic device may be divided into the functional units according to the method example, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

Fig. 6 is a block diagram of functional units of a data transmission device 600 according to an embodiment of the present application. The data transmission apparatus 600 is applied to a terminal, and the data transmission apparatus 600 includes: a processing unit 601 and a communication unit 602, wherein,

the processing unit 601 is configured to obtain transmission configuration information through the communication unit, where the transmission configuration information is used to indicate a data transmission configuration mode in a physical uplink shared channel; the communication unit is used for determining the transmission starting position of the initial transmission block of the physical uplink shared channel according to the transmission configuration information; and transmitting data to be transmitted according to the transmission initial position of the initial transmission block through the communication unit.

The data transmission apparatus 600 may further include a storage unit 603 for storing program codes and data of the electronic device. The processing unit may be a processor, may be a touch display screen or a receiver, and the storage unit 603 may be a memory.

In a possible example, in the aspect of determining the transmission start position of the initial transport block of the physical uplink shared channel according to the transmission configuration information, the processing unit is specifically configured to determine the transmission start position of the initial transport block of the physical uplink shared channel according to the transmission configuration information and an actual repeated transmission opportunity of a last transceiving node corresponding to the transport block in the physical uplink shared channel,

the transmission configuration information comprises redundancy version sequence information, mapping mode information of physical uplink shared channel transmission segments on a plurality of transceiving nodes and physical uplink shared channel transmission segment information,

the redundancy version sequence information includes: a

first sequence

0,0 and a

second sequence

0,3,

the mapping mode information of the physical uplink shared channel transmission segment on the plurality of transceiving nodes comprises: the first mapping mode is that a first physical uplink shared channel and a second physical uplink shared channel are transmitted corresponding to a first receiving and sending node, a third physical uplink shared channel and a fourth physical uplink shared channel are transmitted corresponding to a second receiving and sending node, and the subsequent physical uplink shared channel transmission is carried out in sequence; the second mapping manner is that the first time physical uplink shared channel transmission and the second time physical uplink shared channel transmission are respectively mapped on the first transceiving node and the second transceiving node, the subsequent physical uplink shared channel transmission is carried out in sequence, the first transceiving node and the second transceiving node are both transceiving nodes of network equipment,

the physical uplink shared channel transmission segmentation information comprises nominal repeated transmission information, and the nominal repeated transmission information comprises an initial transmission symbol S configured by the network equipment, a transmission symbol length L and nominal repeated transmission times K.

In one possible example, the redundancy version sequence information is the first sequence {0, 0}; the transmission starting position of the initial transmission block is as follows: a transmission block corresponding to an actual repeated transmission opportunity except an actual repeated transmission opportunity corresponding to a last transceiving node when K is greater than or equal to the first value.

In a possible example, in the aspect of determining the transmission start position of the initial transport block of the physical uplink shared channel according to the transmission configuration information, the processing unit is specifically configured to determine the transmission start position of the initial transport block of the physical uplink shared channel according to the transmission configuration information and a transmission opportunity of an actual repetition on a last nominal repetition corresponding to each of a plurality of transceiving nodes corresponding to the transport block in the physical uplink shared channel,

the transmission configuration information comprises redundancy version sequence information, mapping mode information of the physical uplink shared channel transmission segments on a plurality of transceiving nodes and physical uplink shared channel transmission segment information,

the redundancy version sequence information includes: a

first sequence

0,0 and a

second sequence

0,3,

the mapping mode information of the physical uplink shared channel transmission segment on the plurality of transceiving nodes comprises the following steps: the first mapping mode is a mode that a first time of physical uplink shared channel transmission and a second time of physical uplink shared channel transmission correspond to a first receiving and sending node, a third time of physical uplink shared channel transmission and a fourth time of physical uplink shared channel transmission correspond to a second receiving and sending node, and subsequent transmission is carried out in sequence; the second mapping mode is a mode that the first time physical uplink shared channel transmission and the second time physical uplink shared channel transmission are respectively mapped on the first transceiving node and the second transceiving node, and subsequent transmission is performed in sequence, the first transceiving node and the second transceiving node are both transceiving nodes of network equipment,

the physical uplink shared channel transmission segmentation information comprises nominal repetition transmission information, and the nominal repetition transmission information comprises a starting transmission symbol S of a nominal repetition configured by the network equipment, a transmission symbol length L of each nominal repetition and a nominal repetition number K.

In one possible example, the redundancy version sequence information is the first sequence {0, 0}; the transmission starting position of the initial transmission block is as follows: a transmission block corresponding to an actual repeated transmission opportunity except when K is greater than or equal to a first value, where each of the plurality of transceiving nodes corresponds to a last nominally repeated corresponding actual repeated transmission time.

In one possible example, the processing unit is further configured to determine a transmission start position mode of an initial transport block of the physical uplink shared channel.

In one possible example, the determining a transmission start position mode of an initial transport block of the physical uplink shared channel includes: determining a first indication domain in the transmission configuration information; and determining a transmission starting position of an initial transmission block of the physical uplink shared channel according to the first indication domain.

In a possible example, the determining, by the terminal, a transmission start position of an initial transport block of the physical uplink shared channel specifically includes: and the terminal determines a mode of a transmission starting position of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity corresponding to the last nominal repetition by each of the plurality of transceiving nodes corresponding to the transmission block in the physical uplink shared channel.

In a possible example, the determining, by the terminal, a transmission start position of an initial transport block of the physical uplink shared channel specifically includes: and under the condition that the uplink data transmission mode is the transmission of the authorization-free physical uplink shared channel, the terminal determines the transmission starting position of the initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity of the last receiving and transmitting node corresponding to the transmission block in the physical uplink shared channel.

Fig. 7 is a block diagram of functional units of a data transmission device 700 according to an embodiment of the present application. The data transmission apparatus 700 is applied to a network device, and the data transmission apparatus 700 includes: a processing unit 701 and a communication unit 702, wherein,

the processing unit 701 is configured to configure transmission configuration information, a target indication field of the transmission configuration information and a first indication field, where the target indication field is used to indicate a configuration mode of data to be transmitted of a terminal on a physical uplink shared channel and a transmission start position of an initial transmission block, and the first indication field is used to indicate a mode that the terminal determines the transmission start position of the initial transmission block of the physical uplink shared channel; and for sending the transmission configuration information to the terminal via the communication unit.

The data transmission apparatus 700 may further include a storage unit 703 for storing program codes and data of the electronic device. The processing unit may be a processor, may be a touch display screen or a receiver, and the storage unit 703 may be a memory.

In one possible example, the first indication field includes: the new adding indication domain or the multiplexing indication domain, the new adding indication domain comprises a new indication domain in the wireless control resource, and the multiplexing indication domain comprises a transmission configuration indication mapping indication domain.

Embodiments of the present application also provide a computer storage medium, where the computer storage medium stores a computer program for electronic data exchange, the computer program enabling a computer to execute part or all of the steps of any one of the methods described in the above method embodiments, and the computer includes an electronic device.

Embodiments of the present application also provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any one of the methods as set out in the above method embodiments. The computer program product may be a software installation package, the computer comprising an electronic device.

It should be noted that for simplicity of description, the above-mentioned embodiments of the method are described as a series of acts, but those skilled in the art should understand that the present application is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art will recognize that the embodiments described in this specification are preferred embodiments and that acts or modules referred to are not necessarily required for this application.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.

The integrated unit may be stored in a computer readable memory if it is implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the above-mentioned method of the embodiments of the present application. And the aforementioned memory comprises: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and various media capable of storing program codes.

Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash Memory disks, read-Only memories (ROMs), random Access Memories (RAMs), magnetic or optical disks, and the like.

The foregoing embodiments have been described in detail, and specific examples are used herein to explain the principles and implementations of the present application, where the above description of the embodiments is only intended to help understand the method and its core ideas of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A data transmission method, applied to a terminal, the method comprising:

determining a transmission starting position of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity of the last transceiving node corresponding to the transmission block in the physical uplink shared channel; or determining a transmission starting position of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity corresponding to the last nominal repetition by each of a plurality of receiving and transmitting nodes corresponding to the transmission block in the physical uplink shared channel;

2. The method of claim 1, wherein the transmission configuration information comprises redundancy version sequence information, mapping information of physical uplink shared channel transmission segments on a plurality of transceiving nodes, and physical uplink shared channel transmission segment information.

3. The method of claim 2, wherein the redundancy version sequence information comprises: a first sequence of {0, 0} and a second sequence of {0,3,0,3}.

4. The method of claim 3, wherein the mapping information of the physical uplink shared channel transmission segments on the plurality of transceiving nodes comprises:

the first mapping mode is that a first physical uplink shared channel and a second physical uplink shared channel are transmitted corresponding to a first receiving and sending node, a third physical uplink shared channel and a fourth physical uplink shared channel are transmitted corresponding to a second receiving and sending node, and the subsequent physical uplink shared channel transmission is carried out in sequence; the second mapping mode is that the first physical uplink shared channel and the second physical uplink shared channel are respectively mapped on the first transceiving node and the second transceiving node, subsequent physical uplink shared channel transmission is sequentially performed, and the first transceiving node and the second transceiving node are both transceiving nodes of network equipment.

5. The method of claim 3, wherein the physical uplink shared channel transmission segment information comprises nominal repetition transmission information, and wherein the nominal repetition transmission information comprises a starting transmission symbol S of a nominal repetition configured by the network device, a transmission symbol length L of each nominal repetition, and a nominal repetition number K.

6. The method of claim 5, wherein the redundancy version sequence information is the first sequence {0, 0}; the transmission starting position of the initial transmission block is as follows:

and the transmission blocks corresponding to the actual repeated transmission opportunity except the actual repeated transmission opportunity corresponding to the last transceiving node under the condition that the K is greater than or equal to the first numerical value.

7. The method of claim 5, wherein the redundancy version sequence information is {0,3,0,3} of the second sequence; the transmission start position of the initial transmission block is as follows:

and the redundancy version is 0 and the transmission blocks corresponding to the actual repeated transmission opportunity except the actual repeated transmission opportunity corresponding to the last transceiving node under the condition that the K is greater than or equal to the first numerical value.

8. The method of claim 5, wherein the redundancy version sequence information is the first sequence {0, 0}; the transmission starting position of the initial transmission block is as follows:

a transmission block corresponding to an actual repeated transmission opportunity except when K is greater than or equal to a first value, where each of the plurality of transceiving nodes corresponds to a last nominally repeated corresponding actual repeated transmission time.

9. The method of claim 5, wherein the redundancy version sequence information is {0,3,0,3} of the second sequence; the transmission start position of the initial transmission block is as follows:

and the redundancy version is 0, and the transmission blocks corresponding to the actual repeated transmission occasions except the actual repeated transmission occasion corresponding to the last nominal repetition are corresponding to each transceiving node in the plurality of transceiving nodes under the condition that the K is greater than or equal to the first numerical value.

10. The method of claim 1, further comprising:

and determining a transmission starting position mode of the initial transmission block of the physical uplink shared channel.

11. The method according to claim 10, wherein the determining a transmission start position manner of the initial transport block of the physical uplink shared channel comprises:

determining a first indication domain in the transmission configuration information;

and determining a transmission starting position of an initial transmission block of the physical uplink shared channel according to the first indication domain.

12. The method according to claim 11, wherein the manner in which the terminal determines the transmission start position of the initial transport block of the physical uplink shared channel specifically means:

and the terminal determines a transmission starting position of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity of the last transceiving node corresponding to the transmission block in the physical uplink shared channel.

13. The method according to claim 11, wherein the manner in which the terminal determines the transmission start position of the initial transport block of the physical uplink shared channel specifically means:

and the terminal determines a transmission starting position mode of the initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity corresponding to the last nominal repetition by each receiving and transmitting node in the plurality of receiving and transmitting nodes corresponding to the transmission block in the physical uplink shared channel.

14. The method according to claim 10, wherein the manner for the terminal to determine the transmission start position of the initial transport block of the physical uplink shared channel specifically means:

and under the condition that the uplink data transmission mode is the transmission of the authorization-free physical uplink shared channel, the terminal determines the transmission starting position of the initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity of the last receiving and transmitting node corresponding to the transmission block in the physical uplink shared channel.

15. The method according to claim 10, wherein the manner for the terminal to determine the transmission start position of the initial transport block of the physical uplink shared channel specifically means:

and under the condition that the uplink data transmission mode is the transmission of the authorization-free physical uplink shared channel, the terminal determines the mode of the transmission starting position of the initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission time corresponding to the last nominal repetition by each of the plurality of receiving and transmitting nodes corresponding to the transmission block in the physical uplink shared channel.

16. The method according to any of claims 1-15, wherein the actual repetitions comprise one or more actual repetitions into which each nominal repetition is divided during transmission.

17. A data transmission method, applied to a network device, the method comprising:

configuring transmission configuration information, wherein the transmission configuration information comprises a target indication domain and a first indication domain, the target indication domain is used for indicating a configuration mode of data to be transmitted of a terminal in a physical uplink shared channel and a transmission starting position of an initial transmission block, the first indication domain is used for indicating that a mode of determining the transmission starting position of the initial transmission block of the physical uplink shared channel by the terminal is bound with a radio resource control signaling reptcipping, and when the reptcipping is configured as SeqMapping, the method comprises the following steps: the terminal determines a mode of a transmission initial position of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity of the last transceiving node corresponding to the transmission block in the physical uplink shared channel; or, the terminal determines a transmission start position of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and an actual repeated transmission opportunity on the last nominal repetition corresponding to each of a plurality of transceiving nodes corresponding to the transmission block in the physical uplink shared channel;

and sending the transmission configuration information to the terminal.

18. The method of claim 17, wherein the first indication field comprises: a new indication field or a multiplexing indication field.

19. The method of claim 18, wherein the new indicator field comprises a new indicator field in a radio control resource.

20. The method of claim 18, wherein the multiplexing indication field comprises a transmission configuration indication mapping indication field.

21. A data transmission apparatus, applied to a terminal, the apparatus comprising: a processing unit and a communication unit, wherein,

the communication unit is used for determining the transmission starting position of the initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity of the last transceiving node corresponding to the transmission block in the physical uplink shared channel; or determining a transmission starting position of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity corresponding to the last nominal repetition by each of a plurality of receiving and transmitting nodes corresponding to the transmission block in the physical uplink shared channel;

and the communication unit is used for transmitting the data to be transmitted according to the transmission initial position of the initial transmission block.

22. The apparatus of claim 21, wherein the transmission configuration information comprises redundancy version sequence information, mapping manner information of physical uplink shared channel transmission segments on multiple transceiving nodes, and physical uplink shared channel transmission segment information,

the redundancy version sequence information includes: a first sequence 0,0 and a second sequence 0,3,

the mapping mode information of the physical uplink shared channel transmission segment on the plurality of transceiving nodes comprises the following steps:

the method comprises the following steps that a first mapping mode and a second mapping mode are adopted, wherein the first mapping mode is that a first physical uplink shared channel and a second physical uplink shared channel are transmitted to correspond to a first receiving and sending node, a third physical uplink shared channel and a fourth physical uplink shared channel are transmitted to correspond to a second receiving and sending node, and the subsequent physical uplink shared channel transmission is carried out in sequence; the second mapping manner is that the first physical uplink shared channel and the second physical uplink shared channel are respectively mapped on the first transceiving node and the second transceiving node, subsequent physical uplink shared channel transmissions are performed in sequence, the first transceiving node and the second transceiving node are both transceiving nodes of network equipment, the physical uplink shared channel transmission segmentation information includes nominal repeat transmission information, and the nominal repeat transmission information includes an initial transmission symbol S, a transmission symbol length L, and a nominal repeat transmission number K configured by the network equipment.

23. The apparatus of claim 22, wherein the redundancy version sequence information is the first sequence {0, 0}; the transmission start position of the initial transmission block is as follows:

a transmission block corresponding to an actual repeated transmission opportunity except an actual repeated transmission opportunity corresponding to a last transceiving node when K is greater than or equal to the first value.

24. The apparatus of claim 22, wherein the redundancy version sequence information is the second sequence {0,3,0,3}; the transmission start position of the initial transmission block is as follows:

25. The apparatus of claim 22, wherein the redundancy version sequence information is the first sequence {0, 0}; the transmission starting position of the initial transmission block is as follows:

and the transmission blocks corresponding to the actual repeated transmission occasions except the actual repeated transmission occasion corresponding to the last nominal repeated transmission occasion are corresponding to each transceiving node in the plurality of transceiving nodes under the condition that the K is greater than or equal to the first numerical value.

26. The apparatus of claim 22, wherein the redundancy version sequence information is {0,3,0,3} of the second sequence; the transmission start position of the initial transmission block is as follows:

27. The apparatus of claim 21, wherein the processing unit is further configured to:

and determining a transmission initial position mode of an initial transmission block of the physical uplink shared channel.

28. The apparatus of claim 27, wherein the determining a transmission start position of an initial transport block of the physical uplink shared channel comprises:

29. The apparatus of claim 28, wherein the manner for the terminal to determine the transmission start position of the initial transport block of the physical uplink shared channel specifically means:

30. The apparatus of claim 28, wherein the manner for the terminal to determine the transmission start position of the initial transport block of the physical uplink shared channel specifically means:

and the terminal determines a mode of a transmission starting position of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity corresponding to the last nominal repetition by each of the plurality of transceiving nodes corresponding to the transmission block in the physical uplink shared channel.

31. The apparatus according to claim 27, wherein the manner for the terminal to determine the transmission start position of the initial transport block of the physical uplink shared channel specifically means:

32. The apparatus according to claim 27, wherein the manner for the terminal to determine the transmission start position of the initial transport block of the physical uplink shared channel specifically means:

33. The apparatus of any of claims 21-32, wherein the actual repetitions comprise one or more actual repetitions into which each nominal repetition is divided during transmission.

34. A data transmission apparatus, applied to a network device, the apparatus comprising: a processing unit and a communication unit, wherein,

the processing unit is configured to configure transmission configuration information, and a target indication domain and a first indication domain of the transmission configuration information, where the target indication domain is configured to indicate a configuration mode of data to be transmitted of a terminal on a physical uplink shared channel and a transmission start position of an initial transport block, the first indication domain is configured to indicate that a mode of determining, by the terminal, the transmission start position of the initial transport block of the physical uplink shared channel is bound to a radio resource control signaling reptcipping, and when the reptcipping is configured as SeqMapping, the processing unit applies: the terminal determines a transmission starting position mode of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and the actual repeated transmission opportunity of the last receiving and transmitting node corresponding to the transmission block in the physical uplink shared channel; or, the terminal determines a transmission start position of an initial transmission block of the physical uplink shared channel according to the transmission configuration information and an actual repeated transmission opportunity on the last nominal repetition corresponding to each of a plurality of transceiving nodes corresponding to the transmission block in the physical uplink shared channel;

35. The apparatus of claim 34, wherein the first indication field comprises: the new adding indication domain or the multiplexing indication domain, the new adding indication domain comprises a new indication domain in the wireless control resource, and the multiplexing indication domain comprises a transmission configuration indication mapping indication domain.

36. A terminal comprising a processor, memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps in the method of any of claims 1-16.

37. A network device comprising a processor, memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps in the method of any of claims 17-20.

38. A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any of claims 1-16 or 17-20.

39. A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 1-16 or 17-20.