CN117426131A

CN117426131A - Communication method and device

Info

Publication number: CN117426131A
Application number: CN202180097745.2A
Authority: CN
Inventors: 张世昌; 林晖闵; 赵振山
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2024-01-19
Also published as: WO2023000332A1

Abstract

The application provides a communication method and device, wherein the method comprises the following steps: and the terminal equipment determines a resource pool according to configuration information when transmitting the side uplink, wherein the configuration information comprises configuration modes of micro time slots and conventional time slots. In this way, the terminal device determines the resource pool according to the configuration mode of the micro time slot and the conventional time slot, thereby ensuring coexistence of the conventional time slot and the micro time slot.

Description

Communication method and device

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a communications method and apparatus.

Background

Device-to-Device (D2D) is a Side Link (SL) transmission technology that has higher spectral efficiency and lower transmission delay than conventional cellular systems in which communication data is received or transmitted by a base station.

For the sidestream resource pool, in addition to the conventional time slot (slot), a micro-time slot (mini-slot) transmission or scheduling is also introduced in an NR New air interface (New Radio, NR) user general network (User to Network interface Universal, uu) interface transmission system. That is, the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) or the physical uplink shared channel (Physical Downlink Shared Channel, PDSCH) scheduled by the network is not granularity of a regular time slot, but granularity of a time domain symbol in the regular time slot, so that the purpose of reducing the time delay can be achieved.

In existing NR SL systems, the sidelink transmission or scheduling is granular with respect to regular slots (slots). However, when the NR SL is applied to the industrial internet or the like, there is a higher requirement on the delay of the system, and the delay requirement can be satisfied by using a side transmission manner based on the minislot. However, in the existing NR SL system, when a side transmission scheme based on a minislot is used, coexistence of the minislot and a regular slot cannot be ensured.

Content of the application

The embodiment of the application provides a communication method and a communication device, which are used for solving the problem that coexistence of micro time slots and conventional time slots cannot be ensured when a lateral transmission mode based on the micro time slots is used in the prior art.

A first aspect of the present application provides a communication method, the method comprising:

the terminal equipment determines a resource pool according to configuration information, wherein the configuration information comprises configuration modes of micro time slots and conventional time slots.

In an alternative embodiment, the configuration information is configured or preconfigured by the network device or defined by a standard.

In an alternative embodiment, the resource pool is used for side-link transmissions, which are at least micro-slot based side-link transmissions.

In an alternative embodiment, the configuration means includes a resource pool where the micro time slots and the regular time slots exist in different time divisions.

In an optional implementation manner, the configuration information further includes first indication information, where the first indication information is used to indicate a minimum time domain granularity of the resource pool.

In an alternative embodiment, if a part of symbols in the regular time slot are configured as a resource pool with the micro time slot as a minimum resource granularity, the rest of symbols in the regular time slot are also configured as a resource pool with the micro time slot as a minimum resource granularity.

In an optional implementation manner, the configuration information further includes second indication information and third indication information, where the second indication information is used to indicate a location of a regular time slot where a micro time slot belonging to the resource pool is located, and the third indication information is used to indicate a location of the micro time slot belonging to the resource pool in the regular time slot.

In an alternative embodiment, the second indication information includes bitmap information, and the third indication information includes an index value or a plurality of positioning parameters, and the plurality of positioning parameters include a start parameter of the minislot belonging to the resource pool in a regular time slot and a length parameter of the minislot belonging to the resource pool.

In an alternative embodiment, the configuration means includes a resource pool where the minislot and the regular time slot exist in different frequency divisions.

In an alternative embodiment, the configuration means includes that the micro time slot and the regular time slot exist in the same resource pool.

In an alternative embodiment, the configuration information further includes configuration information of the micro time slot, where the configuration information of the micro time slot includes that the micro time slot has a length of two characters, and the micro time slot is located on the third last symbol and the second last symbol of one side line time slot.

In an optional implementation manner, the configuration information of the micro time slot further includes that the frequency domain resources occupied by the micro time slot are not overlapped with the frequency domain resources occupied by the physical side feedback channel existing on the same symbol.

In an alternative embodiment, the configuration information of the micro timeslot further includes that the automatic gain control symbols of the physical sidestream control channel and the physical sidestream shared channel transmitted in the micro timeslot are located on the fourth last symbol of the next sidestream timeslot.

In an optional implementation manner, the transmission time of the physical sidelink control channel and the physical sidelink shared channel, which are transmitted in the micro-slot, in the fourth last symbol is not later than a preset time, and the preset time is the end time of the fourth last symbol.

In an alternative implementation manner, the physical sidelink control channel sent in the micro-slot occupies two symbols and occupies a preset number of physical resource blocks.

In an alternative embodiment, the configuration information of the micro time slot further includes that the automatic gain control symbols of the physical side-row control channel and the physical side-row shared channel transmitted in the micro time slot are located on the third last symbol of the side-row time slot, and occupy the whole third last symbol.

In an alternative embodiment, a physical sidelink control channel transmitted on a symbol other than the minislot in the regular time slot is used to indicate that resources on the reserved minislot are used for retransmission of the same transport block or new transmission of another transport block.

In an alternative embodiment, the number of physical resource blocks included in one subchannel in the micro-slot is greater than the number of physical resource blocks included in one subchannel in the regular slot.

In an optional implementation manner, the configuration information further includes configuration information of the regular timeslot, where the configuration information of the regular timeslot is used to determine the number of resources occupied by the second-level downlink control information when the physical sidelink shared channel is sent on the minislot and the number of sub-channels occupied by the physical sidelink shared channel is a preset number.

In an alternative embodiment, the configuration information of the regular time slot includes the number of resources available for the physical sidelink shared channel to transmit in a preset number of sub-channels in the regular time slot and the number of resources for one physical sidelink control channel and demodulation reference signal transmission of the physical sidelink control channel in the regular time slot.

In an alternative embodiment, the configuration information of the regular time slots is also used to determine the size of the transport block.

In an alternative embodiment, the configuration information of the regular time slot includes a demodulation reference signal configuration on the regular time slot, a sidelink symbol configuration on the regular time slot, and a demodulation reference signal configuration of a physical sidelink shared channel on the regular time slot, where the number of physical resource blocks available for the physical sidelink shared channel to transmit is preset in a number of sub-channels on one regular time slot.

In an alternative embodiment, the side uplink control information used in the side uplink transmission to indicate the reserved resource includes fourth indication information, where the fourth indication information is used to indicate that the reserved resource is located in the micro slot or in the regular slot.

In an alternative embodiment, the downlink control information in the side downlink transmission includes fifth indicating information, where the fifth indicating information is used to indicate that the micro time slot or the regular time slot is currently scheduled.

A second aspect of the present application provides a communication method, the method comprising:

the network equipment sends configuration information, wherein the configuration information comprises configuration modes of micro time slots and conventional time slots, and the configuration information is used for determining a resource pool.

A third aspect of the present application provides a communication device comprising:

the acquisition module is used for determining a resource pool according to configuration information, wherein the configuration information comprises configuration modes of micro time slots and conventional time slots.

In an alternative embodiment, the resource pool is used for side-link transmission, which is at least a micro-slot based side-link transmission.

A fourth aspect of the present application provides a communication device, the device comprising:

the device comprises a sending module, a receiving module and a resource pool determining module, wherein the sending module is used for sending configuration information, the configuration information comprises a configuration mode of a micro time slot and a conventional time slot, and the configuration information is used for determining the resource pool.

A fifth aspect of the present application provides a terminal device, including:

a processor, a memory, a transmitter, and an interface for communicating with a terminal device;

The memory stores computer-executable instructions;

the processor executes computer-executable instructions stored by the memory to cause the processor to perform the communication method as described in the first aspect.

A sixth aspect of the present application provides a network device, comprising:

the memory stores computer-executable instructions;

the processor executes computer-executable instructions stored by the memory to cause the processor to perform the communication method as described in the second aspect.

A seventh aspect of the present application provides a chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method according to the first aspect.

An eighth aspect of the present application provides a chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method as described in the second aspect.

A ninth aspect of the present application provides a computer readable storage medium storing a computer program for causing a computer to perform the method according to the first aspect.

A tenth aspect of the present application provides a computer readable storage medium storing a computer program for causing a computer to perform the method according to the second aspect.

An eleventh aspect of the present application provides a computer program product comprising computer instructions which, when executed by a processor, implement the method as described in the first aspect.

A twelfth aspect of the present application provides a computer program product comprising computer instructions which, when executed by a processor, implement the method according to the second aspect.

A thirteenth aspect of the present application provides a computer program for causing a computer to perform the method as described in the first aspect.

A fourteenth aspect of the present application provides an apparatus, which may include: at least one processor and interface circuitry, the program instructions involved being executed in the at least one processor to cause the communication device to carry out the method as described in the first aspect.

A fifteenth aspect of the present application provides an apparatus, the apparatus may comprise: at least one processor and interface circuitry, the program instructions involved being executable in the at least one processor to cause the communication device to implement the method as described in the second aspect.

A sixteenth aspect of the present application provides a communication system comprising: the communication apparatus according to the third aspect, and the communication apparatus according to the fourth aspect.

A seventeenth aspect of the present application provides a communication device for performing the method of the first aspect.

An eighteenth aspect of the present application provides a communication device for performing the method of the second aspect.

According to the communication method and the communication device, when the terminal equipment transmits in the side uplink, the resource pool is determined according to the configuration information, and the configuration information comprises the configuration modes of the micro time slot and the conventional time slot. In this way, the terminal device determines the resource pool according to the configuration mode of the micro time slot and the conventional time slot, thereby ensuring coexistence of the conventional time slot and the micro time slot.

Drawings

In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description of the embodiments or the drawings used in the description of the prior art will be given in brief, it being obvious that the drawings in the description below are some embodiments of the invention and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of network coverage inside line communication according to an embodiment of the present application;

fig. 2 is a schematic diagram of a partial network coverage sidestream communication provided in an embodiment of the present application;

fig. 3 is a schematic diagram of network coverage outside communication according to an embodiment of the present application;

fig. 4 is a schematic diagram of unicast transmission according to an embodiment of the present application;

fig. 5 is a schematic diagram of multicast transmission according to an embodiment of the present application;

fig. 6 is a schematic diagram of a broadcast transmission according to an embodiment of the present application;

fig. 7 is a schematic diagram of a slot structure according to an embodiment of the present application;

fig. 8 is a schematic diagram of another slot structure according to an embodiment of the present application;

FIG. 9 is a resource map of an SCI of 2-level according to an embodiment of the present application;

fig. 10 is a schematic diagram of a format of a sidestream feedback channel according to an embodiment of the present application;

fig. 11 is a schematic diagram of micro-slot scheduling according to an embodiment of the present application;

fig. 12 is a schematic view of a communication method according to an embodiment of the present application

Fig. 13 is a schematic flow chart of a communication method according to an embodiment of the present application;

fig. 14 is a schematic diagram of a position of a micro slot according to an embodiment of the present application;

Fig. 15 is a schematic diagram of a time-frequency position of a minislot according to an embodiment of the present application;

fig. 16 is a signaling interaction diagram of a communication method according to an embodiment of the present application;

fig. 17 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 18 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 19 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The terms first, second and the like in the description of embodiments of the present application, in the claims and in the above-described figures, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of operation in sequences other than those illustrated or described herein, for example. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

The following description of the technical solutions in the embodiments of the present application will be made with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The side-link communication will be explained first.

In the sidestream communication, the sidestream communication can be divided into network coverage inner sidestream communication, partial network coverage sidestream communication and network coverage outer sidestream communication according to the network coverage condition of the terminal for communication. Fig. 1 is a schematic diagram of network coverage side line communication provided in an embodiment of the present application, fig. 2 is a schematic diagram of partial network coverage side line communication provided in an embodiment of the present application, and fig. 3 is a schematic diagram of network coverage outside line communication provided in an embodiment of the present application.

As shown in fig. 1, in the network coverage inside line communication, all terminals performing side line communication are located in the coverage of the same network device, and the terminals can perform side line communication based on the same side line configuration by receiving the configuration signaling of the network device.

As shown in fig. 2, in the case of partial network coverage side communication, a terminal that performs side communication partially is located in the coverage area of the network device, and the terminal located in the coverage area of the network device can receive the configuration signaling of the network device and perform side communication according to the configuration of the base station. And the terminal outside the network coverage area cannot receive the configuration signaling of the network device, at this time, the terminal outside the network coverage area determines the sidestream configuration according to the pre-configuration information and the information carried in the physical sidestream broadcast channel (Physical Sidelink Broadcast Channel, PSBCH) sent by the terminal inside the network coverage area, so as to perform sidestream communication.

As shown in fig. 3, in the case of network coverage outside line communication, all terminals performing side line communication are located outside the network coverage, and further all terminals determine side line configuration according to the pre-configuration information, so as to perform side line communication.

Device-to-device communication is a side-link transmission technique that has higher spectral efficiency and lower transmission delay than conventional cellular systems in which communication data is received or transmitted by a base station. In which the internet of vehicles system employs device-to-device communication, two transmission modes are defined in the third generation partnership project (3rd Generation Partnership Project,3GPP): a first mode and a second mode.

In the first mode, the transmission resources of the terminal device are allocated by the network device, and the terminal device sends data on the side link according to the resources allocated by the terminal device. The network device may allocate resources for single transmission to the terminal device, or may allocate resources for semi-static transmission to the terminal device. As shown in fig. 1, the terminal device is located in the coverage area of the network, and the network device allocates transmission resources used for side transmission for the terminal.

In the first mode, the terminal device selects one resource in the resource pool to transmit data. As shown in fig. 3, the terminal device is located outside the coverage area of the cell, and the terminal device autonomously selects transmission resources in a preconfigured resource pool to perform side transmission. Or as shown in fig. 1, the terminal device autonomously selects transmission resources from a resource pool configured by the network to perform side transmission.

The following description is made for NR vehicle-to-X (V2X) wireless communication technology.

First, in NR-V2X, automatic driving needs to be supported, and thus, higher demands are placed on data interaction between vehicles, such as higher throughput, lower latency, higher reliability, larger coverage, more flexible resource allocation, etc.

Secondly, in LTE-V2X, a broadcast transmission scheme is supported, and unicast and multicast transmission schemes are introduced. Fig. 4 is a schematic diagram of unicast transmission provided in an embodiment of the present application, fig. 5 is a schematic diagram of multicast transmission provided in an embodiment of the present application, and fig. 6 is a schematic diagram of broadcast transmission provided in an embodiment of the present application. For unicast transmission, there is only one receiving terminal, as in fig. 4, unicast transmission is performed between User Equipment (UE) 1 and UE 2. For multicast transmission, the receiving end is all terminals in a communication group, or all terminals in a certain transmission distance, such as fig. 5, UE1, UE2, UE3 and UE4 form a communication group, where UE1 sends data, and all other terminal devices in the group are receiving end terminals. For the broadcast transmission mode, the receiving end is any terminal around the transmitting end terminal, as shown in fig. 6, UE1 is the transmitting end terminal, and other terminals around the transmitting end terminal, UE2-UE6 are all receiving end terminals.

The slot structure of the system frame of NR-V2X is explained below.

Fig. 7 is a schematic diagram of a slot structure provided in an embodiment of the present application, and fig. 8 is a schematic diagram of another slot structure provided in an embodiment of the present application. The slot structure shown in fig. 7 does not include the physical sidelink feedback channel (Physical Sidelink Feedback Channel, PSFCH), and the slot structure shown in fig. 8 includes the PSFCH.

Referring to fig. 7 and 8, in NR-V2X, a physical sidelink control channel (Physical Sidelink Control Channel, PSCCH) occupies 2 or 3 orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols from the second sidelink symbol of the slot in the time domain, and {10, 12, 15, 20, 25} physical resource blocks (Orthogonal Frequency Division Multiplexing, PRBs) may be occupied in the frequency domain. In order to avoid blind detection of PSCCH by terminal equipment, only one PSCCH symbol number and PRB number are allowed to be configured in one resource pool. In addition, since the sub-channel is the minimum granularity of PSSCH resource allocation in NR-V2X, the number of PRBs occupied by the PSCCH must be less than or equal to the number of PRBs contained in one sub-channel in the resource pool, so as not to cause additional limitation on physical sidelink shared channel (Physical Sidelink Shared Channel, PSSCH) resource selection or allocation. The PSSCH also starts in the time domain from the second side symbol of the slot, the last time domain symbol in the slot being a Guard Period (GP) symbol, the remaining symbols mapping the PSSCH. The first side symbol in the slot is a repetition of the second side symbol, and typically the receiving end terminal uses the first side symbol as an automatic gain control (Automatic Gain Control, AGC) symbol, the data on which is not typically used for data demodulation. As shown in fig. 7, the PSSCH occupies K subchannels in the frequency domain, each of which includes N consecutive PRBs.

When the PSFCH channel is included in the slot, as shown in fig. 8, the penultimate and penultimate symbols in the slot are used as PSFCH channel transmissions, and one time domain symbol preceding the PSFCH channel is used as a GP symbol.

The mechanism of the 2 nd order system control information (System Control Information, SCI) in NR-V2X is described below.

2-order SCI is introduced in NR-V2X, the first-order SCI is carried in PSCCH and used for indicating information such as transmission resource, reserved resource information, modulation and coding strategy (Modulation and Coding Scheme, MCS) level, priority and the like of PSSCH, the second-order SCI is sent in the resource of PSSCH and is demodulated by using demodulation reference signal (Demodulation Reference Signal, DMRS) of PSSCH and used for indicating information such as sender identification, receiver identification, hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ) identification, network equipment interface (Network Device Interface, NDI) and the like used for data demodulation. The second order SCI starts mapping from the first DMRS symbol of the PSSCH, frequency domain first and then time domain mapping. Fig. 9 is a resource map of an SCI with 2 nd order according to an embodiment of the present application. As shown in fig. 9, PSCCH occupies 3 symbols (symbols 1, 2, 3), DMRS of PSSCH occupies symbols 4, 11, second order SCI is mapped from symbol 4, frequency division multiplexed with DMRS on symbol 4, second order SCI is mapped to symbols 4, 5, 6, and the size of resources occupied by second order SCI depends on the number of bits of second order SCI.

The side feedback channel is described below.

In NR-V2X, a side-by-side feedback channel is introduced for improved reliability. For unicast transmission, the transmitting end terminal sends side line data (including PSCCH and PSSCH) to the receiving end terminal, and the receiving end terminal sends HARQ feedback information (including acknowledgement character (Acknowledge character, ACK) or negative acknowledgement character (Non Acknowledge character, NACK)) to the transmitting end terminal, and the transmitting end terminal determines whether retransmission is needed according to the feedback information of the receiving end terminal. Wherein the HARQ feedback information is carried in a sidelink feedback channel, e.g. PSFCH.

In some embodiments, sidestream feedback may be activated or deactivated by pre-configuration information or network configuration information. If the sidestream feedback is activated, the receiving terminal receives sidestream data sent by the sending terminal, feeds back HARQ ACK or NACK to the sending terminal according to the detection result, and decides to send retransmission data or new data according to feedback information of the receiving terminal. If the side feedback is deactivated, the receiving end terminal does not need to send feedback information, and the transmitting end terminal generally adopts a blind retransmission mode to send data, for example, the transmitting end terminal repeatedly sends each side data K times, instead of deciding whether to need to send retransmission data according to the feedback information of the receiving end terminal.

The format for the side-row feedback channel is described below.

In NR-V2X, a PSFCH is introduced, which carries only 1 bit of HARQ-ACK information, occupies 2 time domain symbols in the time domain (the second symbol carries side row feedback information, the data on the first symbol is a duplicate of the data on the second symbol, but the symbol is used as AGC), and occupies 1 PRB in the frequency domain. Fig. 10 is a schematic diagram of a format of a side feedback channel according to an embodiment of the present application. As shown in fig. 10, the positions of the time domain symbols occupied by the PSFCH, PSCCH, and PSSCH in one slot are given. In one slot, the last symbol is used as GP, the second last symbol is used for PSFCH transmission, the third last symbol is the same as the data of the PSFCH symbol, used as AGC, the fourth last symbol is also used as GP, the first symbol in the slot is used as AGC, the data on this symbol is the same as the data on the second time domain symbol in the slot, the PSCCH occupies 3 time domain symbols, and the remaining symbols are available for PSSCH transmission.

The following describes the side-by-side resource pool slot configuration.

In NR-V2X, the time domain resources in the resource pool can be determined in the following manner.

In some embodiments, the time domain resources of the resource pool may be determined within one system frame count (System Frame Number, SFN) period or one direct frame count (Direct Frame Number, DFN) period, in particular, by determining which time domain resources within one SFN period or one DFN period belong to the resource pool.

Exemplary, the total number of slots included in one SFN period is 10240×2 ^μ A time slot, wherein the parameter μ relates to the subcarrier spacing size. At 10240 x 2 ^μ Among the time slots, the synchronous time slot, the downlink time slot, the special time slot and the reserved time slot (reserved subframe) are removed, and the time slot set formed after the remaining time slots are renumbered is

Wherein the number of remaining time slots can be L _bitmap Integer division, L _bitmap Representing a length of a bit map for indicating resource pool configurations; if at least one time domain symbol Y, Y+1, Y+2, …, Y+X-1 included in one time slot is not configured as an uplink symbol by network signaling (TDD-UL-DL-ConfigCommon)Number, the time slot is a special time slot; y and X respectively represent two RRC layer parameters of sl-StartSymbol and sl-LengthSymbols, a bit map for indicating resource pool configurationPeriodically mapping to the rest time slots; a value of 1 for a bit indicates that the time slot corresponding to the bit belongs to the resource pool, and a value of 0 for a bit indicates that the time slot corresponding to the bit does not belong to the resource pool.

One SFN cycle or one DFN cycle includes 10240×2 ^μ The period of the synchronization signal (abbreviated as synchronization period) is 160ms including 2 synchronization slots in one synchronization period, i.e., 10240ms, and thus there are 128 synchronization slots in one SFN period. The bit map for indicating the resource pool configuration is 10 bits in length (i.e., L _bitmap =10), so 2 reserved slots (reserved subframe) are required, the number of remaining slots is (10240-128-2=10110), the remaining slots can be divided by the length 10 of the bit map, the remaining slots are renumbered to be 0,1,2, … …,10109, the first 3 bits of the bit map are 1, and the remaining 7 bits are 0, i.e.It can be seen that the first 3 slots of every 10 slots belong to the resource pool, and the remaining slots do not belong to the resource pool. Since the bit map is required to be repeated 1011 times in the remaining slots to indicate whether all slots belong to the resource pool, and 3 slots belong to the resource pool in the period of each bit map, a total of 3033 slots belong to the resource pool in one SFN period.

It should be noted that the time slots referred to in fig. 7 to 10 are all regular time slots.

The micro slots are described below.

In the Rel-15 NR Uu port transmission system, micro-slot (mini-slot) transmission or scheduling is introduced, namely, the PUSCH or PDSCH scheduled by the network does not take time slots as granularity, but takes time domain symbols in the time slots as granularity, thereby achieving the purpose of reducing time delay.

Fig. 11 is a schematic diagram of micro-slot scheduling according to an embodiment of the present application. As shown in fig. 11, the PDCCH at the head of the slot may schedule the PDSCH (with mini-slot 1 as a resource unit) in the same slot, or schedule the PUSCH at the tail of the slot (with mini-slot 2 as a resource unit), so that uplink and downlink data may be rapidly scheduled in one slot. In an NR system, micro-slot scheduling with {2,4,7} time domain symbols as time domain scheduling granularity is supported.

In order to solve the above problems, embodiments of the present application provide a communication method and apparatus, where a terminal device determines a resource pool according to a configuration manner of a micro time slot and a regular time slot during side uplink transmission. In this way, the terminal device determines the resource pool according to the configuration mode of the micro time slot and the conventional time slot, thereby ensuring coexistence of the conventional time slot and the micro time slot.

The application scenario of the present application is illustrated below.

Fig. 12 is a schematic view of a communication method according to an embodiment of the present application. As shown in fig. 12, the network device 102 sends configuration information to the terminal device, and the terminal device 101 determines the configuration of the micro time slot and the regular time slot after acquiring the configuration information, so as to determine the resource pool according to the configuration of the micro time slot and the regular time slot during the side uplink transmission.

Wherein the terminal device 101 may include, but is not limited to, a satellite or cellular telephone, a personal communication system (Personal Communications System, PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that can include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a global positioning system (Global Positioning System, GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal device may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolved PLMN, etc.

Network device 102 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within the coverage area. Alternatively, the network device 102 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

The technical solutions of the embodiments of the present application are described in detail below with specific embodiments by taking a terminal device and a network device as examples. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.

Fig. 13 is a flow chart of a communication method according to an embodiment of the present application. The embodiment of the application relates to a process how a terminal device determines a resource pool. As shown in fig. 13, the method includes:

S201, the terminal equipment acquires configuration information.

The configuration information includes the configuration modes of micro time slots and conventional time slots. The resource pool is used for a side-link transmission, which is a side-link transmission based at least on micro-slots.

In the embodiment of the application, in the side uplink transmission based on at least micro time slots, before the terminal equipment needs to determine the resource pool, the configuration modes of the micro time slots and the conventional time slots can be determined from the configuration information sent by the network equipment.

It should be understood that embodiments of the present application are not limited as to how configuration information is obtained, and in some embodiments, the configuration information may be configured by a network device, or may be preconfigured, or may be defined by a standard.

It should be understood that the embodiments of the present application do not limit the configuration manner of the micro-slot and the regular slot, and may include, by way of example, three manners in which the micro-slot and the regular slot exist in different time-division resource pools, the micro-slot and the regular slot exist in different frequency-division resource pools, and the micro-slot and the regular slot exist in the same resource pool.

The following describes the configuration of the three minislots and the conventional slots provided above, respectively.

In the first configuration, the micro-slots and the regular slots exist in different time-division resource pools, i.e., the micro-slots and the regular slots exist in different resource pools, and the time domain resources occupied by the different resource pools do not overlap. If on one carrier, the granularity of the time domain resources contained in one resource pool may be micro time slots, and correspondingly, the configuration information may include first indication information, where the first indication information is used to indicate the minimum time domain granularity of the resource pool.

The minimum time domain granularity of the resource pool indicated by the first indication information may be 14 symbols or 7 symbols, for example. If the first indication information indicates 14 symbols, the minimum time domain granularity of the resource pool is indicated to be a conventional time slot, and if the first indication information indicates 7 symbols, the minimum time domain granularity of the resource pool is indicated to be a micro time slot.

In some embodiments, a resource pool with micro-slot as the minimum time domain granularity is configured on one carrier, if a part of symbols in a conventional slot are configured as the resource pool with micro-slot as the minimum resource granularity, the rest of symbols in the conventional slot are also configured as the resource pool with micro-slot as the minimum resource granularity.

For example, if the first 7 symbols of one slot are configured as resource a with minimum time granularity of micro-slots, the remaining 7 symbols should be configured as resource pool B with minimum time granularity of micro-slots. The resource pool a and the resource pool B may be the same resource pool or different resource pools.

It should be understood that in the embodiment of the present application, the location of the minislot may also be indicated in the configuration information. Correspondingly, the configuration information also comprises second indication information and third indication information, wherein the second indication information is used for indicating the position of the conventional time slot where the micro time slot belonging to the resource pool is located, and the third indication information is used for indicating the position of the micro time slot belonging to the resource pool in the conventional time slot.

The embodiments of the present application do not limit how the position of the minislot is determined. In some embodiments, the second indication information includes bitmap information, the third indication information includes an index value, the bitmap information is used to determine a location of a slot in which a minislot belonging to the resource pool is located, the index value is used to indicate which minislot in the slot belongs to the resource pool, and the location of the minislot can be determined through the bitmap information and the index value. Fig. 14 is a schematic diagram of the position of a micro timeslot provided in the embodiment of the present application, as shown in fig. 14, a bit bitmap with a length of 10 indicates that the micro timeslots belonging to the resource pool are included in the 0,1,4,5,8 and 9 timeslots in every 10 timeslots, and then indicates that the second micro timeslot in the timeslots indicated by the bit bitmap belongs to the resource pool through an index value of 1.

In other embodiments, the second indication information comprises bitmap information, and the third indication information comprises a plurality of positioning parameters, the plurality of positioning parameters comprising a start parameter of a minislot belonging to the resource pool in a regular time slot and a length parameter of a minislot belonging to the resource pool. The bitmap information is used for determining the position of a time slot in which a micro time slot belonging to the resource pool is located, the plurality of positioning parameters are used for indicating which micro time slot in the time slot belongs to the resource pool, and the position of the micro time slot can be determined through the bitmap information and the plurality of positioning parameters.

In a second configuration, the minislots and regular slots exist in resource pools of different frequency divisions. In a third configuration, the minislots and regular slots exist in the same resource pool. Aiming at the second configuration mode and the third configuration mode, the configuration information also comprises configuration information of the micro time slot.

Fig. 15 is a schematic diagram of a time-frequency position of a minislot according to an embodiment of the present application. As shown in fig. 15, in the second configuration mode and the third configuration mode, the configuration information of the minislot includes that the minislot has a length of two characters, and the minislot is located on the third last symbol and the second last symbol of one sidestream slot. Preferably, if PSFCH exists on the 3 rd and 2 nd symbol of one side slot, the PRB occupied by PSFCH and the PRB occupied by the minislot do not overlap.

It should be understood that sidestream time slots refer to time slots that may be used for sidestream transmissions.

In some embodiments, in the second configuration mode and the third configuration mode, the configuration information of the minislot further includes that the automatic gain control symbols of the physical sidelink control channel and the physical sidelink shared channel transmitted in the minislot are located on the fourth last symbol of the next sidelink slot. And the transmission time of the physical side line control channel and the physical side line shared channel which are transmitted in the micro time slot in the fourth last symbol is not later than the preset time T. The preset time T is the end time of the last four symbols.

It should be noted that T is a preset value. Illustratively, T is equal to half the symbol length. The signal transmitted by the terminal device at T may be a repetition of the signal transmitted during the start T time on the 3 rd symbol and during the last T time on the third symbol. Illustratively, as shown in fig. 14, the last half of the 10 th symbol may be used as the AGC symbol for the minislot.

Preferably, in the second configuration mode and the third configuration mode, the physical sidelink control channel sent in the micro time slot occupies two symbols and occupies a preset number of physical resource blocks.

Wherein the starting PRB occupied by PSSCH scheduled by PSCCH is adjacent to the last PRB occupied by PSCCH. Illustratively, the DMRS of the PSSCH transmitted in the minislot is located at the first symbol of the minislot.

The preset number is not limited in the embodiment of the present application, and may be defined by a standard, configured by a network, or preconfigured by an example.

In some embodiments, in the second configuration mode and the third configuration mode, the configuration information of the micro timeslot further includes that the automatic gain control symbols of the physical side control channel and the physical side shared channel transmitted in the micro timeslot are located on the third last symbol of the side timeslot (the first symbol of the micro timeslot), and occupy the entire third last symbol. At this time, the signal transmitted on the AGC symbol is a repetition of the signal transmitted on the second symbol of the minislot. In this case, the PSCCH transmitted by the micro-slot occupies a specific number of PRBs on the second symbol of the micro-slot, the actual PRB of the scheduled PSCCH is adjacent to the last PRB of the PSCCH, and the DMRS of the PSCCH is also located on the second symbol of the micro-slot.

The third configuration also has some different configuration strategies compared to the second configuration.

In some embodiments, in the third configuration, the minislots in a conventional slot and the conventional slot belong to the same resource pool, and a physical sidelink control channel transmitted on a symbol other than the minislots in the conventional slot is used to indicate that resources on the reserved minislots are used for retransmission of the same transport block or new transmission of another transport block. In the opposite case, the same is true.

Preferably, the number of PRBs contained in a subchannel (sub-channel) in a minislot is greater than the number of PRBs contained in one subchannel in a conventional slot. For example, as shown in fig. 14, if the 0 th to 9 th symbols in the regular slot can be used for PSCCH or PSSCH transmission, the number of PRBs contained in one subchannel in the micro slot may be 5 times that of the PRBs contained in one subchannel in the regular slot. In this way, it is ensured that one TB is transmitted on both regular and minislots with a close code rate.

In some embodiments, in the third configuration mode, for the PSSCH transmitted on the minislot, and the number of sub-channels occupied by the PSSCH is a preset number, both the terminal and the receiving terminal determine the number of REs occupied by the second-level SCI according to the configuration on the conventional slot. Correspondingly, the configuration information also comprises configuration information of a conventional time slot, wherein the configuration information of the conventional time slot is used for determining the number of resources occupied by the second-order side-link control information when the physical side-line shared channel is sent on the micro time slot and the number of sub-channels occupied by the physical side-line shared channel is a preset number. The configuration information of the conventional slot includes the number of resources available for transmission of the physical side-row shared channel in the preset number of sub-channels in the conventional slot and the number of resources for transmission of demodulation reference signals for one physical side-row control channel and one physical side-row control channel in the conventional slot.

Correspondingly, if the configuration information of the conventional time slot is further used for determining the size of the transport block, the configuration information of the conventional time slot includes demodulation reference signal configuration on the conventional time slot, side row symbol number configuration on the conventional time slot, demodulation reference signal configuration of the physical side row shared channel on the conventional time slot, and the number of physical resource blocks available for physical side row shared channel transmission in a preset number of sub-channels on one conventional time slot.

In some embodiments, the regular time slots may reserve resources within the micro time slots, or the resources within the micro time slots may reserve resources within the regular time slots. Correspondingly, the side uplink control information used for indicating the reserved resources in the side uplink transmission comprises fourth indication information, wherein the fourth indication information is used for indicating that the reserved resources are positioned in micro time slots or in regular time slots.

In some embodiments, the downlink control information in the side downlink transmission further includes fifth indication information, where the fifth indication information is used to indicate that the micro slot or the regular slot is currently scheduled.

S202, the terminal equipment determines a resource pool according to the configuration information.

In this step, after acquiring the configuration information sent by the network device, the terminal device may determine the resource pool according to the configuration information during the side uplink transmission.

It should be noted that, in the embodiment of the present application, how to determine the resource pool is not described in detail, the determination may be performed based on the configuration manner in step S201.

In the present application, a communication method in which a micro time slot and a regular time slot coexist on the same carrier is provided, and by the method provided in the present application, the micro time slot may be allocated in a different time-division resource pool from the regular time slot, or the micro time slot may be allocated in a different frequency-division resource pool from the regular time slot, or the micro time slot may be allocated in the same resource pool as the regular time slot. If the minislot and the regular time slot belong to different frequency division resource pools or uniform resource pools, the resource used by the minislot is located at the PSFCH symbol position. In this way, the conventional time slot can be supported on one carrier, and the micro time slot can be further supported at the same time, so that the time delay of the lateral line transmission is reduced, and the opportunity of the lateral line transmission in one time slot is increased.

According to the communication method provided by the embodiment of the application, the terminal equipment determines the resource pool according to the configuration information when in side uplink transmission, wherein the configuration information comprises the configuration modes of micro time slots and conventional time slots. In this way, the terminal device determines the resource pool according to the configuration mode of the micro time slot and the conventional time slot, thereby ensuring coexistence of the conventional time slot and the micro time slot.

On the basis of the above embodiment, the configuration modes of the micro time slot and the regular time slot can be obtained from the pre-configuration information, and also can be obtained from the configuration information sent by the network device. The following provides a way for the network device to provide configuration information for the terminal device so that the terminal device determines the resource pool. Fig. 16 is a signaling interaction diagram of a communication method according to an embodiment of the present application. As shown in fig. 16, the method includes:

s301, the network equipment determines configuration information, wherein the configuration information comprises configuration modes of micro time slots and conventional time slots.

S302, the network equipment sends configuration information to the terminal equipment.

S303, the terminal equipment determines a resource pool according to the configuration information.

The technical terms, effects, features, and alternative embodiments of S301-S303 may be understood with reference to S201-S202 shown in fig. 13, and will not be described again here for repeated contents.

Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the above method embodiments may be implemented by hardware related to program information, and the above program may be stored in a computer readable storage medium, where the program, when executed, performs steps including the above method embodiments; and the aforementioned storage medium includes: various media that can store program code, such as ROM, RAM, magnetic or optical disks.

Fig. 17 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication apparatus may be implemented by software, hardware, or a combination of both to perform the communication method at the terminal device side in the above-described embodiment. As shown in fig. 17, the communication apparatus 400 includes: an acquisition module 401 and a processing module 402.

An obtaining module 401, configured to obtain configuration information sent by a network device, where the configuration information includes configuration modes of a micro time slot and a regular time slot;

a processing module 402, configured to determine a resource pool according to the configuration information.

In an alternative embodiment, the configuration comprises a pool of resources where the minislots and regular slots exist in different time divisions.

In an optional embodiment, the configuration information further includes first indication information, where the first indication information is used to indicate a minimum time domain granularity of the resource pool.

In an alternative embodiment, if a portion of the symbols in the regular time slot are configured as a resource pool with a minimum resource granularity of micro time slots, the remaining symbols in the regular time slot are also configured as a resource pool with a minimum resource granularity of micro time slots.

In an optional embodiment, the configuration information further includes second indication information and third indication information, where the second indication information is used to indicate a location of a regular time slot where a micro time slot belonging to the resource pool is located, and the third indication information is used to indicate a location of a micro time slot belonging to the resource pool in the regular time slot.

In an alternative embodiment, the second indication information includes bitmap information, and the third indication information includes an index value or a plurality of positioning parameters including a start parameter of a minislot belonging to the resource pool in a regular time slot and a length parameter of a minislot belonging to the resource pool.

In an alternative embodiment, the configuration comprises a resource pool where the minislots and regular slots exist in different frequency divisions.

In an alternative embodiment, the configuration includes that the micro-slots and the regular slots exist in the same resource pool.

In an alternative embodiment, the configuration information of the micro time slot further includes that the frequency domain resources occupied by the micro time slot do not overlap with the frequency domain resources occupied by the physical sidelink feedback channel existing on the same symbol.

In an alternative embodiment, the configuration information of the micro timeslot further includes that the automatic gain control symbols of the physical side-row control channel and the physical side-row shared channel transmitted in the micro timeslot are located on the fourth last symbol of the next side-row timeslot.

In an alternative embodiment, the transmission time of the physical sidelink control channel and the physical sidelink shared channel, which are transmitted in the micro-slot, in the fourth-to-last symbol is not later than a preset time, and the preset time is the end time of the fourth-to-last symbol.

In an alternative implementation, the physical sidelink control channel sent in the micro-slot occupies two symbols and occupies a preset number of physical resource blocks.

In an alternative embodiment, the configuration information of the micro timeslot further includes that the automatic gain control symbols of the physical side-row control channel and the physical side-row shared channel transmitted in the micro timeslot are located on the third last symbol of the side-row timeslot, and occupy the whole third last symbol.

In an alternative embodiment, one subchannel within a minislot contains a greater number of physical resource blocks than one subchannel within a regular slot.

In an optional implementation manner, the configuration information further includes configuration information of a conventional time slot, where the configuration information of the conventional time slot is used to determine the number of resources occupied by the second-order side uplink control information when the physical side shared channel is sent on the minislot and the number of sub-channels occupied by the physical side shared channel is a preset number.

In an alternative embodiment, the configuration information of the conventional timeslot includes the number of resources available for transmission of the physical sidelink shared channel in a preset number of subchannels in the conventional timeslot and the number of resources for transmission of demodulation reference signals for one physical sidelink control channel and one physical sidelink control channel in the conventional timeslot.

In an alternative embodiment, configuration information of the regular time slots is also used to determine the transport block size.

In an alternative embodiment, the configuration information of the regular time slot includes a demodulation reference signal configuration on the regular time slot, a sidelink symbol number configuration on the regular time slot, a demodulation reference signal configuration of a physical sidelink shared channel on the regular time slot, and a number of physical resource blocks available for transmission by the physical sidelink shared channel in a preset number of sub-channels on one regular time slot.

In an alternative embodiment, the side uplink control information used in the side uplink transmission to indicate the reserved resource includes fourth indication information, where the fourth indication information is used to indicate that the reserved resource is located in a micro slot or in a regular slot.

In an alternative embodiment, the downlink control information in the side downlink transmission includes fifth indication information, where the fifth indication information is used to indicate that the micro slot or the regular slot is currently scheduled.

The communication device provided in the embodiment of the present application may perform the actions of the communication method on the terminal device side in the above embodiment, and the implementation principle and the technical effect are similar, and are not repeated herein.

Fig. 18 is a schematic structural diagram of another communication device according to an embodiment of the present application. The communication apparatus may be implemented by software, hardware, or a combination of both to perform the communication method on the network device side in the above embodiment. As shown in fig. 18, the communication apparatus 500 includes: a processing module 501 and a transmitting module 502.

A processing module 501, configured to determine configuration information.

The sending module 502 is configured to send configuration information, where the configuration information includes a configuration mode of a micro time slot and a regular time slot, and the configuration information is used to determine a resource pool.

The communication device provided in the embodiment of the present application may perform the actions of the communication method on the network device side in the above embodiment, and the implementation principle and the technical effect are similar, and are not repeated herein.

Fig. 19 is a schematic structural diagram of an electronic device according to an embodiment of the present application. As shown in fig. 19, the electronic device may include: a processor 61 (e.g., CPU), a memory 62, a receiver 63, and a transmitter 64; the receiver 63 and the transmitter 64 are coupled to the processor 61, the processor 61 controlling the receiving action of the receiver 63, the processor 61 controlling the transmitting action of the transmitter 64. The memory 62 may comprise a high-speed RAM memory or may further comprise a non-volatile memory NVM, such as at least one magnetic disk memory, in which various information may be stored in the memory 62 for performing various processing functions and implementing method steps of embodiments of the present application. Optionally, the electronic device according to the embodiment of the present application may further include: a power supply 65, a communication bus 66 and a communication port 66. The receiver 63 and the transmitter 64 may be integrated in a transceiver of the electronic device or may be separate transceiver antennas on the electronic device. The communication bus 66 is used to enable communication connections between the elements. The communication port 66 is used to enable connection communications between the electronic device and other peripherals.

In the embodiment of the present application, the memory 62 is configured to store computer executable program codes, where the program codes include information; when the processor 61 executes the information, the information causes the processor 61 to execute the processing action on the terminal device side in the above method embodiment, causes the transmitter 64 to execute the transmitting action on the terminal device side in the above method embodiment, and causes the receiver 63 to execute the receiving action on the terminal device side in the above method embodiment, so that the implementation principle and technical effects are similar, and are not repeated here.

Or, when the processor 61 executes the information, the information causes the processor 61 to execute the processing action on the network device side in the above method embodiment, causes the transmitter 64 to execute the sending action on the network device side in the above method embodiment, and causes the receiver 63 to execute the receiving action on the network device side in the above method embodiment, so that the implementation principle and technical effects are similar, and are not repeated herein.

The embodiment of the application also provides a communication system which comprises the terminal equipment and the network equipment so as to execute the communication method.

The embodiment of the application also provides a chip, which comprises a processor and an interface. Wherein the interface is used for inputting and outputting data or instructions processed by the processor. The processor is configured to perform the methods provided in the method embodiments above. The chip can be applied to terminal equipment or network equipment.

The present invention also provides a computer-readable storage medium, which may include: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, an optical disk, or other various media capable of storing program codes, and specifically, the computer-readable storage medium stores therein program information for use in the above communication method.

The present application also provides a program which, when executed by a processor, is configured to perform the communication method provided by the above method embodiment.

The present application also provides a program product, such as a computer-readable storage medium, having instructions stored therein, which when run on a computer, cause the computer to perform the communication method provided by the above-described method embodiments.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions in accordance with embodiments of the present invention are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.) means from one website, computer, server, or data center. Computer readable storage media can be any available media that can be accessed by a computer or data storage devices such as servers, data centers, etc. that contain an integration of one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), etc.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

A method of communication, comprising:

the terminal equipment determines a resource pool according to configuration information, wherein the configuration information comprises configuration modes of micro time slots and conventional time slots.
Method according to claim 1, characterized in that the configuration information is configured or preconfigured by a network device or defined by a standard.
The method according to claim 1 or 2, characterized in that the resource pool is used for side-link transmissions, which are at least micro-slot based side-link transmissions.
A method according to any of claims 1-3, characterized in that the configuration comprises a pool of resources where the micro-slots and the regular slots are present in different time divisions.
The method of claim 4, wherein the configuration information further includes first indication information, the first indication information being used to indicate a minimum time domain granularity of the resource pool.
The method of claim 5, wherein if a portion of the symbols in the regular time slot are configured as a resource pool with the minislot as a minimum resource granularity, then the remaining symbols in the regular time slot are also configured as a resource pool with the minislot as a minimum resource granularity.
The method of claim 4, wherein the configuration information further includes second indication information and third indication information, the second indication information is used for indicating a location of a regular time slot in which a micro time slot belonging to the resource pool is located, and the third indication information is used for indicating a location of the micro time slot belonging to the resource pool in the regular time slot.
The method of claim 7, wherein the second indication information comprises bitmap information, and the third indication information comprises an index value or a plurality of positioning parameters, the plurality of positioning parameters comprising a starting point parameter of the minislots belonging to the resource pool in a regular time slot and a length parameter of the minislots belonging to the resource pool.
A method according to any of claims 1-3, characterized in that the configuration comprises a pool of resources where the micro-slots and the regular slots are present in different frequency divisions.
A method according to any of claims 1-3, characterized in that the configuration comprises that the micro-slots and the regular slots are present in the same resource pool.
The method according to claim 9 or 10, wherein the configuration information further includes configuration information of the micro-slot, the configuration information of the micro-slot includes that the micro-slot has a length of two characters, and the micro-slot is located on the third last symbol and the second last symbol of one side slot.
The method of claim 11, wherein the configuration information of the minislot further comprises that frequency domain resources occupied by the minislot do not overlap with frequency domain resources occupied by a physical sidelink feedback channel present on the same symbol.
The method of claim 11 wherein the configuration information for the minislot further comprises automatic gain control symbols for physical sidestream control channels and physical sidestream shared channels transmitted in the minislot being located on the fourth last symbol of the next sidestream slot.
The method of claim 13, wherein the transmission time of the physical sidelink control channel and the physical sidelink shared channel transmitted in the minislot is no later than a preset time in the fourth last symbol, and the preset time is an end time of the fourth last symbol.
The method according to claim 13 or 14, wherein the physical sidelink control channel transmitted in the minislot occupies two symbols and occupies a predetermined number of physical resource blocks.
The method of claim 9 or 10, wherein the configuration information of the minislot further comprises that the automatic gain control symbols of the physical sidelink control channel and the physical sidelink shared channel transmitted in the minislot are located on the third last symbol of the sidelink slot and occupy the entire third last symbol.
The method of claim 10, wherein a physical sidelink control channel transmitted on a symbol other than a minislot in the regular time slot is used to indicate that resources on the reserved minislot are used for retransmission of the same transport block or new transmission of another transport block.
The method of claim 17, wherein one subchannel within the minislot comprises a greater number of physical resource blocks than one subchannel within the regular slot.
The method of claim 10, wherein the configuration information further includes configuration information of the regular time slot, where the configuration information of the regular time slot is used to determine a number of resources occupied by second-order side uplink control information when a physical side shared channel is transmitted on the micro time slot and a number of sub-channels occupied by the physical side shared channel is a preset number.
The method of claim 19 wherein the configuration information for the regular time slot includes the number of resources available for transmission of the physical side-by-side shared channel in a preset number of sub-channels in the regular time slot and the number of resources for transmission of demodulation reference signals for one physical side-by-side control channel and the physical side-by-side control channel in the regular time slot.
The method of claim 19, wherein the configuration information of the regular time slots is further used to determine a transport block size.
The method of claim 19 wherein the configuration information for the regular time slots includes a demodulation reference signal configuration for the regular time slots, a sidelink symbol number configuration for the regular time slots, and a demodulation reference signal configuration for the physical sidelink shared channels for the regular time slots, and wherein the number of physical resource blocks available for transmission by the physical sidelink shared channels in a predetermined number of sub-channels for one regular time slot.
The method according to claim 10, wherein side uplink control information for indicating reserved resources in side uplink transmission includes fourth indication information for indicating that reserved resources are located in the micro slot or in the regular slot.
The method of claim 10, wherein downlink control information in the side-link transmission includes fifth indication information indicating whether the micro-slot or the regular-slot is currently scheduled.
A method of communication, comprising:

the network equipment sends configuration information, wherein the configuration information comprises configuration modes of micro time slots and conventional time slots, and the configuration information is used for determining a resource pool.
The method of claim 25, wherein the resource pool is used for side-link transmissions, the side-link transmissions being at least micro-slot based side-link transmissions.
The method according to claim 25 or 26, wherein the configuration comprises a pool of resources where the micro-slots and the regular slots exist in different time divisions.
The method of claim 27, wherein the configuration information further includes first indication information, the first indication information being used to indicate a minimum time domain granularity of the resource pool.
The method of claim 28, wherein if a portion of the symbols in the regular time slot are configured as a resource pool with the minislot as a minimum resource granularity, then the remaining symbols in the regular time slot are also configured as a resource pool with the minislot as a minimum resource granularity.
The method of claim 27, wherein the configuration information further includes second indication information and third indication information, the second indication information is used for indicating a location of a regular time slot in which a micro time slot belonging to the resource pool is located, and the third indication information is used for indicating a location of the micro time slot belonging to the resource pool in the regular time slot.
The method of claim 30, wherein the second indication information comprises bitmap information, and wherein the third indication information comprises an index value or a plurality of positioning parameters, the plurality of positioning parameters comprising a starting point parameter of the minislots belonging to the resource pool in a regular time slot and a length parameter of the minislots belonging to the resource pool.
The method according to claim 25 or 26, wherein the configuration comprises a pool of resources where the minislot and the regular slot exist in different frequency divisions.
The method of claim 25 or 26, wherein the configuration comprises the minislot and the regular time slot being present in the same resource pool.
The method of claim 32 or 33, wherein the configuration information further includes configuration information of the minislot, the configuration information of the minislot includes that the minislot is two characters long, and the minislot is located on third last and second last symbols of one sidestream slot.
The method of claim 34 wherein the configuration information of the minislot further comprises that frequency domain resources occupied by the minislot do not overlap with frequency domain resources occupied by physical sidelink feedback channels present on the same symbol.
The method of claim 34 wherein the configuration information for the minislot further comprises automatic gain control symbols for physical sidestream control channels and physical sidestream shared channels transmitted in the minislot being located on the fourth last symbol of the next sidestream slot.
The method of claim 36, wherein the transmission time of the physical sidelink control channel and the physical sidelink shared channel transmitted in the minislot is no later than a preset time in the fourth last symbol, and the preset time is an end time of the fourth last symbol.
The method according to claim 36 or 37, wherein the physical sidelink control channel transmitted in the minislot occupies two symbols and occupies a predetermined number of physical resource blocks.
The method of claim 32 or 33, wherein the configuration information of the minislot further comprises that the automatic gain control symbols of the physical sidelink control channel and the physical sidelink shared channel transmitted in the minislot are located on the third last symbol of the sidelink slot and occupy the entire third last symbol.
The method of claim 33, wherein a physical sidelink control channel transmitted on a symbol other than a minislot in the regular time slot is used to indicate that resources on the reserved minislot are used for retransmission of the same transport block or new transmission of another transport block.
The method of claim 40, wherein one subchannel within the minislot contains a greater number of physical resource blocks than one subchannel within the regular slot.
The method of claim 33 wherein the configuration information further includes configuration information of the regular time slot, the configuration information of the regular time slot is used for determining a number of resources occupied by second-order side uplink control information when a physical side shared channel is transmitted on the micro time slot and a number of sub-channels occupied by the physical side shared channel is a preset number.
The method of claim 42, wherein the configuration information for the regular time slot includes a number of resources available for transmission of the physical side-by-side shared channel in a preset number of sub-channels in the regular time slot and a number of resources for transmission of demodulation reference signals for one physical side-by-side control channel and the physical side-by-side control channel in the regular time slot.
The method of claim 42, wherein the configuration information of the regular time slots is further used to determine a transport block size.
The method of claim 42, wherein the configuration information for the regular time slots includes a demodulation reference signal configuration for the regular time slots, a sidelink symbol number configuration for the regular time slots, and a demodulation reference signal configuration for the physical sidelink shared channel for the regular time slots, and wherein the number of physical resource blocks available for transmission by the physical sidelink shared channel in a predetermined number of sub-channels for one regular time slot.
The method of claim 33, wherein side uplink control information in the side uplink transmission for indicating reserved resources includes fourth indication information, wherein the fourth indication information is used for indicating that reserved resources are located in the micro slot or in the regular slot.
The method of claim 33, wherein downlink control information in the side-link transmission includes fifth indication information indicating whether the micro-slot or the regular slot is currently scheduled.
A communication device, comprising:

and the processing module is used for determining a resource pool according to configuration information, wherein the configuration information comprises configuration modes of micro time slots and conventional time slots.
The apparatus of claim 48, wherein the configuration information is configured or preconfigured by a network device or defined by a standard.
The apparatus of claim 48 or 49, wherein the resource pool is used for side-link transmissions, the side-link transmissions being at least micro-slot based side-link transmissions.
The apparatus of any of claims 48-50, wherein the configuration comprises a pool of resources where the minislot and the regular slot exist in different time divisions.
The apparatus of claim 51, wherein the configuration information further comprises first indication information, the first indication information being used to indicate a minimum time domain granularity of the resource pool.
The apparatus of claim 52, wherein if a portion of symbols in the regular time slot are configured as a resource pool with the minislot as a minimum resource granularity, then remaining symbols in the regular time slot are also configured as a resource pool with the minislot as a minimum resource granularity.
The apparatus of claim 51, wherein the configuration information further includes second indication information and third indication information, the second indication information is used for indicating a location of a regular time slot in which a micro time slot belonging to a resource pool is located, and the third indication information is used for indicating a location of the micro time slot belonging to the resource pool in the regular time slot.
The apparatus of claim 54, wherein the second indication information comprises bitmap information, and the third indication information comprises an index value or a plurality of positioning parameters, the plurality of positioning parameters comprising a starting point parameter of the minislots belonging to the resource pool in a regular time slot and a length parameter of the minislots belonging to the resource pool.
The apparatus of any of claims 48-50, wherein the configuration comprises a pool of resources where the minislot and the regular slot exist in different frequency divisions.
The apparatus of any of claims 48-50, wherein the configuration comprises the minislot and the regular time slot being present in a same resource pool.
The apparatus of claim 56 or 57, wherein the configuration information further includes configuration information for the minislot, the configuration information for the minislot including that the minislot is two characters long, and the minislot is located on third last and second last symbols of one sideslot.
The apparatus of claim 58, wherein the configuration information for the minislot further comprises that frequency domain resources occupied by the minislot do not overlap with frequency domain resources occupied by physical sidelink feedback channels present on the same symbol.
The apparatus of claim 58 wherein the configuration information for the minislot further comprises automatic gain control symbols for physical sidelink control channels and physical sidelink shared channels transmitted in the minislot being located on the fourth last symbol of the next sidelink slot.
The apparatus of claim 60, wherein the physical sideline control channel and the physical sideline shared channel transmitted in the minislot are transmitted in the fourth-to-last symbol at a time not later than a preset time, the preset time being an end time of the fourth-to-last symbol.
The apparatus of claim 60 or 61, wherein the physical sidelink control channel transmitted in the minislot occupies two symbols and occupies a predetermined number of physical resource blocks.
The apparatus of claim 56 or 57 wherein the configuration information for a minislot further includes automatic gain control symbols for physical sidelink control channels and physical sidelink shared channels transmitted in the minislot being located on and occupying the third last symbol of a sidelink slot.
The apparatus of claim 57, wherein a physical sidelink control channel transmitted on a symbol other than a minislot in the regular time slot is used to indicate that resources on a reserved minislot are used for retransmission of the same transport block or new transmission of another transport block.
The apparatus of claim 64, wherein one subchannel within the minislot comprises a greater number of physical resource blocks than one subchannel within the regular slot.
The apparatus of claim 57, wherein the configuration information further includes configuration information of the regular time slot, the configuration information of the regular time slot is used for determining a number of resources occupied by second-order side uplink control information when a physical side shared channel is transmitted on the micro time slot and a number of sub-channels occupied by the physical side shared channel is a preset number.
The apparatus of claim 66, wherein the configuration information for the regular time slot comprises a number of resources available for transmission of the physical side-by-side shared channel in a preset number of subchannels in the regular time slot and a number of resources for transmission of demodulation reference signals for one physical side-by-side control channel and the physical side-by-side control channel in the regular time slot.
The apparatus of claim 66, wherein the configuration information for the regular time slots is further used to determine a transport block size.
The apparatus of claim 68, wherein the configuration information for the regular time slots comprises a demodulation reference signal configuration for the regular time slots, a sidelink symbol number configuration for the regular time slots, and a demodulation reference signal configuration for the physical sidelink shared channels for the regular time slots, wherein the number of physical resource blocks available for transmission by the physical sidelink shared channels in a predetermined number of sub-channels for one regular time slot.
The apparatus of claim 57, wherein side uplink control information in the side uplink transmission indicating reserved resources comprises fourth indication information indicating that reserved resources are located in the micro-slot or in the regular slot.
The apparatus of claim 57, wherein downlink control information in a side downlink transmission includes fifth indication information indicating whether the micro-slot or the regular slot is currently scheduled.
A communication device, comprising:

the device comprises a sending module, a receiving module and a resource pool determining module, wherein the sending module is used for sending configuration information, the configuration information comprises a configuration mode of a micro time slot and a conventional time slot, and the configuration information is used for determining the resource pool.
The apparatus of claim 72, wherein the resource pool is used for side-link transmissions that are at least micro-slot based side-link transmissions.
The apparatus of claim 72 or 73, wherein the configuration comprises a pool of resources where the minislots and the regular slots exist in different time divisions.
The apparatus of claim 74, wherein the configuration information further comprises first indication information, the first indication information being used to indicate a minimum time domain granularity of the resource pool.
The apparatus of claim 75, wherein if a portion of symbols in the regular time slot are configured as a resource pool with the minislot as a minimum resource granularity, then remaining symbols in the regular time slot are also configured as a resource pool with the minislot as a minimum resource granularity.
The apparatus of claim 74, wherein the configuration information further comprises second indication information and third indication information, the second indication information is used for indicating a location of a regular time slot in which a micro time slot belonging to a resource pool is located, and the third indication information is used for indicating a location of the micro time slot belonging to the resource pool in the regular time slot.
The apparatus of claim 77, wherein the second indication information comprises bitmap information, and the third indication information comprises an index value or a plurality of positioning parameters, the plurality of positioning parameters comprising a starting point parameter of the minislots belonging to a resource pool in a regular time slot and a length parameter of the minislots belonging to a resource pool.
The apparatus of claim 72 or 73, wherein the configuration comprises a pool of resources where the minislots and the regular slots exist in different frequency divisions.
The apparatus of claim 72 or 73, wherein the configuration comprises the minislots and the regular slots being in a same resource pool.
The apparatus of claim 79 or 80, wherein the configuration information further includes configuration information for the minislot, the configuration information for the minislot including that the minislot is two characters long, and the minislot is located on third last and second last symbols of one sideslot.
The apparatus of claim 81, wherein the configuration information for the minislot further comprises that frequency domain resources occupied by the minislot do not overlap with frequency domain resources occupied by physical side feedback channels present on the same symbol.
The apparatus of claim 81, wherein the configuration information for the minislot further comprises automatic gain control symbols for physical sidelink control channels and physical sidelink shared channels transmitted in the minislot being located on a fourth last symbol of a next sidelink slot.
The apparatus of claim 83, wherein the physical sidelink control channel and the physical sidelink shared channel transmitted in the minislot are transmitted in the fourth-to-last symbol at a time not later than a preset time, the preset time being an end time of the fourth-to-last symbol.
The apparatus of claim 83 or 84, wherein the physical sidelink control channel transmitted in the minislot occupies two symbols and occupies a predetermined number of physical resource blocks.
The apparatus of claim 79 or 80, wherein the configuration information of a minislot further includes automatic gain control symbols for physical sidelink control channels and physical sidelink shared channels transmitted in the minislot being located on and occupying the entire third last symbol of the sidelink slot.
The apparatus of claim 80, wherein a physical sidelink control channel transmitted on a symbol other than a minislot in the regular time slot is used to indicate that resources on a reserved minislot are used for retransmission of the same transport block or new transmission of another transport block.
The apparatus of claim 87, wherein one subchannel within the minislot comprises a greater number of physical resource blocks than one subchannel within the regular slot.
The apparatus of claim 80, wherein the configuration information further includes configuration information of the regular time slot, the configuration information of the regular time slot is used to determine a number of resources occupied by second-order side uplink control information when a physical side shared channel is transmitted on the micro time slot and a number of sub-channels occupied by the physical side shared channel is a preset number.
The apparatus of claim 89, wherein the configuration information for the regular time slot comprises a number of resources available for transmission of the physical side-by-side shared channel in a preset number of subchannels in the regular time slot and a number of resources for transmission of demodulation reference signals for one physical side-by-side control channel and the physical side-by-side control channel in the regular time slot.
The apparatus of claim 89, wherein configuration information for the regular time slots is further used to determine a transport block size.
The apparatus of claim 89, wherein the configuration information for the regular time slots comprises a demodulation reference signal configuration for the regular time slots, a sidelink symbol number configuration for the regular time slots, and a demodulation reference signal configuration for physical sidelink shared channels for the regular time slots, wherein the number of physical resource blocks available for transmission by the physical sidelink shared channels in a predetermined number of subchannels for a regular time slot.
The apparatus of claim 80, wherein side uplink control information in a side uplink transmission for indicating reserved resources comprises fourth indication information for indicating that reserved resources are located in the micro-slot or in the regular slot.
The apparatus of claim 80, wherein downlink control information in a side downlink transmission includes fifth indication information indicating whether the micro-slot or the regular slot is currently scheduled.
A terminal device, comprising: a memory and a processor;

The memory is used for storing executable instructions of the processor;

the processor is configured to perform the method of any of claims 1-24 via execution of the executable instructions.
A network device, comprising: a memory and a processor;

the memory is used for storing executable instructions of the processor;

the processor is configured to perform the method of any of claims 25-47 via execution of the executable instructions.
A chip, comprising: a processor and a memory;

the processor being operative to invoke and run a computer program from the memory, causing a device on which the chip is mounted to perform the method of any of claims 1-47.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1-47.
A computer program product comprising program instructions involved which, when executed, implement the method of any one of claims 1-47.
A computer program, characterized in that the computer program causes a computer to perform the method of any of claims 1-47.
A communication system, comprising: the communication device of any one of claims 48-71, and the communication device of any one of claims 72-94.