WO2019029496A1

WO2019029496A1 - Synchronization signal block indication and determination method, network device and terminal device

Info

Publication number: WO2019029496A1
Application number: PCT/CN2018/099039
Authority: WO
Inventors: 向铮铮; 罗俊; 刘瑾; 袁璞
Original assignee: 华为技术有限公司
Priority date: 2017-08-11
Filing date: 2018-08-06
Publication date: 2019-02-14
Also published as: CN109391420A

Abstract

Provided in the embodiments of the present invention are a synchronization signal block indication and determination method, a network device and a terminal device, wherein the synchronization signal block indication method comprises: a network device generates a synchronization signal block indication message, the synchronization signal block indication message being used to indicate the number of actually transmitted synchronization signal blocks and the sequence number of the first actually transmitted synchronization signal block, wherein the sequence numbers of the actually transmitted synchronization signal blocks are continuous; and the network device transmits the synchronization signal block indication message. Since the sequence numbers of the actually transmitted synchronization signal blocks are continuous, a network device may indicate all of the actually transmitted synchronization signal blocks on the basis of the number of actually transmitted synchronization signal blocks and the sequence number of the first actually transmitted synchronization signal block, so that a terminal device may successfully receive the synchronization signal blocks.

Description

Synchronization signal block indication and determination method, network device and terminal device

This application claims the priority of the Chinese patent application filed on August 11, 2017, the Chinese Patent Office, the application number is 201710686592.0, and the application name is "synchronous signal block indication and determination method, network equipment and terminal equipment". The citations are incorporated herein by reference.

Technical field

The present invention relates to the field of communications technologies, and in particular, to a synchronization signal block indication and determination method, a network device, and a terminal device.

Background technique

The sync signal block is a signal structure defined in New Radio (NR), which includes a Primary Synchronization Sigal (PSS), a Secondary Synchronization Signal (SSS), and a Physical Broadcast Channel (Physical Broadcast). Channel, PBCH). The main function of the PSS and the SSS is to help the user equipment (User Equipment, UE) identify the cell and synchronize with the cell. The PBCH contains the most basic system information such as the system frame number and the intraframe timing information. The successful reception of the synchronization signal block by the UE is a prerequisite for its access to the cell.

To support the multi-beam characteristics of NR, NR defines a ss burst set. The sync signal burst set contains one or more sync signal blocks, and the maximum number L of sync signal blocks that can be included in the sync signal burst set is different in different frequency ranges. Specifically, when the frequency does not exceed 3 GHz, L = 4; when the frequency is between 3 GHz and 6 GHz, L = 8; when the frequency is between 6 GHz and 52.6 GHz, L = 64.

In the actual transmission process, the number of synchronization signal blocks actually transmitted in one synchronization signal burst is not always equal to L, and may be less than L. The base station may transmit other information or schedule the UE in a time slot in which the synchronization signal block is not transmitted. Transfer. In this way, the base station needs to notify the UE of the actually transmitted synchronization signal block, so that the UE successfully receives the synchronization signal block.

Summary of the invention

The embodiment of the invention provides a synchronization signal block indication and determination method, a network device and a terminal device, which can indicate the actually transmitted synchronization signal block, so that the terminal device successfully receives the synchronization signal block.

In a first aspect, an embodiment of the present invention provides a synchronization signal block indication method, where the method includes:

The network device generates a synchronization signal block indication message, the synchronization signal block indication message is used to indicate the number of the actually transmitted synchronization signal blocks and the sequence number of the first synchronization signal block actually transmitted, wherein the actually transmitted synchronization signal block The serial number is continuous;

The network device sends the synchronization signal block indication message.

According to the synchronization signal block indication method provided by the embodiment of the present invention, the network device indicates the number of the actually transmitted synchronization signal blocks and the sequence number of the first synchronization signal block actually transmitted through the synchronization signal block indication message, wherein the actually transmitted synchronization signal block The serial number is continuous, so that based on the number of sync signal blocks actually transmitted and the sequence number of the first sync signal block actually transmitted, the network device can indicate all sync signal blocks actually transmitted.

In a possible design, the synchronization signal block indication message includes synchronization signal block number information and synchronization signal block number information, and the synchronization signal block quantity information is used to indicate the number of synchronization signal blocks actually transmitted, the synchronization signal block. The sequence number information is used to indicate the sequence number of the first sync signal block actually transmitted.

In a possible design, the synchronization signal block indication message is a synchronization signal block index, and the synchronization signal block index has a correspondence relationship with the number of actually transmitted synchronization signal blocks and the sequence number of the first synchronization signal block actually transmitted.

In a possible design, the number of the actually transmitted synchronization signal blocks belongs to a preset value set, for example, when the maximum number of synchronization signal blocks included in the synchronization signal burst set is 64, the actually transmitted synchronization signal block The number of the following may belong to the following set of values {4, 8, 12, ..., 60, 64}, that is, the number of actually transmitted sync signal blocks is a multiple of 4, and the value set has 16 values, which can be 4 bits. Indication, in this way, the overhead of the network device in indicating the actually transmitted sync block can be reduced.

In a possible design, the synchronization signal block indication message is one of the following signaling: physical layer signaling, medium access control (MAC) layer signaling, and radio resource control (RRC). Layer signaling.

In a second aspect, an embodiment of the present invention provides a synchronization signal block determining method, where the method includes:

Receiving, by the terminal device, a synchronization signal block indication message, the synchronization signal block indication message is used to indicate the number of the actually transmitted synchronization signal blocks and the sequence number of the first synchronization signal block actually sent, wherein the actually transmitted synchronization signal block The serial number is continuous;

The terminal device determines, according to the synchronization signal block indication message, the number of synchronization signal blocks actually transmitted and the sequence number of the first synchronization signal block actually transmitted.

The synchronization signal block determining method provided by the embodiment of the present invention, the terminal device receives the synchronization signal block indication message sent by the network device, and determines the number of the actually transmitted synchronization signal blocks and the first actually transmitted according to the synchronization signal block indication message. The sequence number of the synchronization signal blocks, since the sequence numbers of the actually transmitted synchronization signal blocks are continuous, so that the terminal device can determine all the synchronization signal blocks actually transmitted.

In a possible design, the synchronization signal block indication message includes synchronization signal block number information and synchronization signal block number information, and the synchronization signal block quantity information is used to indicate the number of synchronization signal blocks actually transmitted, the synchronization signal block. The sequence number information is used to indicate the sequence number of the first sync signal block actually transmitted. The terminal device may determine the number of synchronization signal blocks actually sent by the network device according to the synchronization signal block quantity information, determine the sequence number of the first synchronization signal block actually sent according to the sequence number information of the synchronization signal block, and determine the actual transmission of the network device. All sync signal blocks.

In a possible design, the synchronization signal block indication message is a synchronization signal block index, and the synchronization signal block index has a correspondence relationship with the number of actually transmitted synchronization signal blocks and the sequence number of the first synchronization signal block actually transmitted. The terminal device may determine, according to the synchronization signal block index, the number of synchronization signal blocks actually sent by the network device and the sequence number of the first synchronization signal block actually sent, thereby determining all synchronization signal blocks actually sent by the network device.

In a possible design, the number of the actually transmitted sync signal blocks belongs to a preset set of values. For example, when the maximum number of synchronization signal blocks included in the synchronization signal burst set is 64, the number of actually transmitted synchronization signal blocks may belong to the following value set {4, 8, 12, ..., 60, 64}, that is, the actual transmission The number of sync signal blocks is a multiple of four.

In a possible design, the synchronization signal block indication message is one of the following signaling: physical layer signaling, media access control MAC layer signaling, and radio resource control RRC layer signaling.

In a third aspect, an embodiment of the present invention provides a synchronization signal block indication method, where the method includes:

The network device generates a synchronization signal block indication message, the synchronization signal block indication message is used to indicate the number of actually transmitted synchronization signal blocks and the sequence number of the first synchronization signal block actually transmitted, wherein the synchronization of two adjacent actual transmissions Signal block number interval

Representing rounding down, L is the maximum number of synchronization signal blocks that the network device can transmit in a synchronization signal burst set, and N is the number of synchronization signal blocks actually transmitted;

The network device sends the synchronization signal block indication message.

The method for indicating a synchronization signal block according to an embodiment of the present invention, the network device indicates, by using a synchronization signal block indication message, the number of synchronization signal blocks actually transmitted and the sequence number of the first synchronization signal block actually sent, where two adjacent two actual transmissions are actually sent. The sequence number interval of the sync signal block is determined such that the network device can indicate all the sync signal blocks actually transmitted based on the sequence number of the first sync signal block actually transmitted and the number of sync signal blocks actually transmitted.

In a possible design, the number of the actually transmitted synchronization signal blocks belongs to a preset value set, for example, the maximum number of synchronization signal blocks that the network device can transmit in a synchronization signal burst set is L=64. The number of synchronization signal blocks actually transmitted may belong to the following value set {4, 8, 12, ..., 60, 64}, that is, the number of actually transmitted synchronization signal blocks is a multiple of 4, and the value set has 16 values can be indicated by 4 bits, which can reduce the overhead of the network device in indicating the actually transmitted sync block.

In a possible design, the sequence spacing of the adjacent two actually transmitted sync signal blocks

Indicates rounding down and Δ is a positive integer. In this case, the value of the sequence number interval Δ of two adjacently transmitted synchronization signal blocks may include several cases, for example, when L=64, N=16, Δ≤4, and the value of Δ at this time It may be 1, 2, 3 and 4, and the above-mentioned synchronization signal block indication message further needs to indicate the value of the sequence number interval Δ of the adjacent two actually transmitted synchronization signal blocks.

In a fourth aspect, an embodiment of the present invention provides a synchronization signal block determining method, where the method includes:

Receiving, by the terminal device, a synchronization signal block indication message, the synchronization signal block indication message is used to indicate the number of the actually transmitted synchronization signal blocks and the sequence number of the first synchronization signal block actually sent, wherein the synchronization of two adjacent actual transmissions Signal block number interval

Representing rounding down, L is the maximum number of synchronization signal blocks that the network device can send in a burst of synchronization signals, and N is the number of synchronization signal blocks actually transmitted;

The synchronization signal block determining method provided by the embodiment of the present invention, the terminal device receives the synchronization signal block indication message sent by the network device, and determines the number of the actually transmitted synchronization signal blocks and the first actually transmitted according to the synchronization signal block indication message. The sequence number of the synchronization signal blocks is determined because the sequence number interval of the adjacent two actually transmitted synchronization signal blocks is determined, so that the terminal device can determine all the synchronization signal blocks actually transmitted.

In a possible design, the number of the actually sent synchronization signal blocks is selected from a preset set of values, for example, when the maximum number of synchronization signal blocks that the network device can transmit is 64, the actually transmitted synchronization signal block The number may belong to the following set of values {4, 8, 12, ..., 60, 64}, that is, the number of sync signal blocks actually transmitted is a multiple of four.

Indicates rounding down and Δ is a positive integer. In this case, the terminal device determines, according to the synchronization signal block indication message sent by the network device, the number of synchronization signal blocks actually transmitted and the sequence number of the first synchronization signal block actually transmitted, and two adjacently transmitted synchronization signals. The sequence number of the block, in turn, determines all the sync signal blocks actually sent by the network device.

In a fifth aspect, an embodiment of the present invention provides a synchronization signal block indication method, where the method includes:

The network device generates a synchronization signal block indication message, the synchronization signal block indication message is used to indicate the actually transmitted synchronization signal block group, wherein the synchronization signal block included in the synchronization signal block group is predetermined;

The network device sends the synchronization signal block indication message.

The synchronization signal block indication method provided by the embodiment of the present invention, the network device indicates the actually transmitted synchronization signal block group by using the synchronization signal block indication message, wherein the synchronization signal block included in the actually transmitted synchronization signal block group is predetermined. In this way, the network device can indicate all the synchronization signal blocks actually transmitted by indicating the actually transmitted synchronization signal block group.

In one possible design, the sequence numbers of the sync signal blocks in the sync signal block group are continuous; or the sequence numbers of the sync signal blocks in the sync signal block group are discontinuous.

In one possible design, the number of synchronization signal blocks included in each synchronization signal block group is the same; or the number of synchronization signal blocks included in each synchronization signal block group is different.

In a possible design, the synchronization signal block indication message is a bit bitmap, and the bit bitmap is used to indicate the actually transmitted synchronization signal block group.

In a possible design, the number of synchronization signal blocks included in each of the synchronization signal block groups may be one. In this case, the network device can indicate the actually transmitted sync signal block by a bit bitmap.

In a sixth aspect, an embodiment of the present invention provides a synchronization signal block determining method, where the method includes:

Receiving, by the terminal device, a synchronization signal block indication message, the synchronization signal block indication message is used to indicate the actually transmitted synchronization signal block group, wherein the synchronization signal block included in the synchronization signal block group is predetermined;

The terminal device determines the actually transmitted synchronization signal block group according to the synchronization signal block indication message.

The synchronization signal block determining method provided by the embodiment of the present invention receives the synchronization signal block indication message sent by the network device, and determines the actually transmitted synchronization signal block group according to the synchronization signal block indication message, which is included in the synchronization signal block group. The sync signal block is predetermined, and the terminal device can determine all sync signal blocks actually transmitted by the network device.

In a possible design, the synchronization signal block indication message is a bit bitmap, and the bit bitmap is used to indicate the actually transmitted synchronization signal block group. In this case, the terminal device determines the actually transmitted synchronization signal block group according to the bit bitmap, thereby determining all the synchronization signal blocks actually transmitted by the network device.

In a possible design, the number of synchronization signal blocks included in each of the synchronization signal block groups may be 1, and the network device may indicate the actually transmitted synchronization signal block by using a bit bitmap. In this case, the terminal device determines the actually transmitted sync signal block based on the bit map.

In a seventh aspect, an embodiment of the present invention provides a network device, where the network device has a function of implementing network device behavior in the foregoing method. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above. Optionally, the network device may be a base station.

In an eighth aspect, an embodiment of the present invention provides a terminal device, where the terminal device has a function of implementing behavior of a terminal device in the foregoing method. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above. Optionally, the terminal device can be a user equipment.

In a ninth aspect, an embodiment of the present invention provides a network device, where the network device includes a processor and a transmitter. The processor is configured to support a network device to perform respective functions in the above methods, such as generating or processing data and/or information involved in the above methods. The transmitter is configured to support the network device to send data, information or instructions involved in the foregoing method to the terminal device, for example, to send a synchronization signal block indication message. In one possible design, the network device may further include a receiver for receiving information or instructions sent by the terminal device. In a possible design, the network device may further include a communication unit for supporting the network device to communicate with other network side devices, for example, receiving information or instructions sent by other network side devices, and/or Send information or instructions to other network-side devices. In a possible design, the structure of the network device may further include a memory for coupling with the processor to save necessary program instructions and data of the network device.

The tenth aspect of the present invention provides a terminal device, where the structure of the terminal device includes a processor and a receiver. The processor is configured to support the terminal device to perform corresponding functions in the above methods, such as generating or processing data and/or information involved in the above methods. The receiver is configured to support the terminal device to receive data and/or information involved in the above method. In a possible design, the structure of the terminal device may further include a transmitter for transmitting the required information or instructions to the network device. In a possible design, the terminal device may further include a communication unit, where the communication unit is configured to support the terminal device to communicate with other network side devices, for example, receiving information or instructions sent by other network side devices, and/or Send information or instructions to other network-side devices. In a possible design, the structure of the terminal device may further include a memory for coupling with the processor to save necessary program instructions and data of the terminal device.

In an eleventh aspect, an embodiment of the present invention provides a communication system, where the system includes the network device and the terminal device.

In a twelfth aspect, the present application provides a computer storage medium for storing computer software instructions for use in the above network device, comprising a program designed to perform the above aspects.

In a thirteenth aspect, the present application provides a computer storage medium for storing computer software instructions for use in the above terminal device, comprising a program designed to perform the above aspects.

In a fourteenth aspect, the present application provides a chip system including a processor for supporting a network device to implement the functions involved in the above aspects, such as, for example, generating or processing data involved in the above method and/or Or information. In a possible design, the chip system further includes a memory for storing necessary program instructions and data of the network device. The chip system can be composed of chips, and can also include chips and other discrete devices.

In a fifteenth aspect, the present application provides a chip system including a processor for supporting a terminal device to implement the functions involved in the above aspects, for example, receiving or processing data and/or data involved in the above method. Or information. In a possible design, the chip system further comprises a memory for storing necessary program instructions and data of the terminal device. The chip system can be composed of chips, and can also include chips and other discrete devices.

The synchronization signal block indication method and device provided by the embodiment of the present invention indicate the number of the actually transmitted synchronization signal blocks and the sequence number of the first synchronization signal block actually transmitted through the synchronization signal block indication message, wherein the actually transmitted synchronization signal block The serial number is continuous, so that based on the number of sync signal blocks actually transmitted and the sequence number of the first sync signal block actually transmitted, the network device can indicate all sync signal blocks actually transmitted.

DRAWINGS

1 is a schematic diagram of a system applied to an embodiment of the present invention;

2 is a schematic structural diagram of a synchronization signal block according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a synchronization signal burst set according to an embodiment of the present invention; FIG.

4 is a schematic interaction flowchart of a synchronization signal block indication method according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a synchronization signal block indicating actual transmission according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic interaction flowchart of another synchronization signal block indication method according to an embodiment of the present invention;

FIG. 7 is a schematic interaction flowchart of still another method for indicating a synchronization signal block according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a synchronization signal block group indicating actual transmission according to an embodiment of the present invention; FIG.

FIG. 9 is a schematic diagram of a logical structure of a network device according to an embodiment of the present invention;

FIG. 10 is a schematic diagram of a logical structure of a terminal device according to an embodiment of the present invention;

11 is a schematic structural diagram of a hardware structure of a network device according to an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of a hardware structure of a terminal device according to an embodiment of the present invention.

Detailed ways

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

1 is a schematic diagram of a system to which an embodiment of the present invention is applied. As shown in FIG. 1, system 100 can include network device 102 and

terminal devices

104, 106, 108, 110, 112, and 114, wherein the network device and the terminal device are connected by wireless. It should be understood that FIG. 1 is only an example in which the system includes a network device, but the embodiment of the present invention is not limited thereto. For example, the system may further include more network devices; similarly, the system may also include more terminals. device. It should also be understood that the system may also be referred to as a network, which is not limited by the embodiment of the present invention.

This specification describes various embodiments in connection with a terminal device. The terminal device may also refer to a user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, and a user agent. Or user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication. Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks, or in future evolutionary public land mobile network (PLMN) networks Terminal equipment, etc.

By way of example and not limitation, in the embodiment of the present invention, the terminal device may also be a wearable device. A wearable device, which can also be called a wearable smart device, is a general term for applying wearable technology to intelligently design and wear wearable devices such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are more than just a hardware device, but they also implement powerful functions through software support, data interaction, and cloud interaction. Generalized wearable smart devices include full-featured, large-size, non-reliable smartphones for full or partial functions, such as smart watches or smart glasses, and focus on only one type of application, and need to work with other devices such as smartphones. Use, such as various smart bracelets for smart signs monitoring, smart jewelry, etc.

This description describes various embodiments in connection with a network device. The network device may be a device for communicating with the terminal device, and the network device may be a Global System of Mobile communication (GSM) or a base station in Code Division Multiple Access (CDMA) (Base Transceiver Station) , BTS), may also be a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, or may be an evolved base station in a Long Term Evolution (LTE) system ( The evolved Node B, the eNB or the eNodeB, may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or the network device may be a relay station, an access point, an in-vehicle device, or a wearable device. And network devices in future 5G networks or network devices in future evolved PLMN networks.

In addition, in the embodiment of the present invention, the network device provides a service for the cell, and the terminal device communicates with the network device by using a transmission resource (for example, a frequency domain resource, or a spectrum resource) used by the cell, where the cell may be a network device. (e.g., a base station) corresponding to a cell, the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell, where the small cell may include: a metro cell, a micro cell, and a pico cell. (Pico cell), femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services. In addition, the cell may also be a hypercell.

In this example, but not as a limited network device, a network device can be divided into a Centralized Unit (CU) and multiple Transmission Reception Point (TRP)/Distributed Units. , DU), that is, the Bandwidth Based Unit (BBU) of the network device is reconstructed into a DU and CU functional entity. It should be noted that the form and number of the centralized unit and the TRP/DU do not constitute a limitation on the embodiment of the present invention.

The CU can handle the functions of the wireless high-layer protocol stack, such as the Radio Resource Control (RRC) layer, the Packet Data Convergence Protocol (PDCP) layer, etc., and even support some core network functions to sink and connect. Network access, termed as edge computing network, can meet the higher requirements of future communication networks for emerging services such as video, online shopping, virtual/augmented reality for network delay.

The DU can mainly handle the layer 2 function with high physical layer function and real-time requirement. Considering the transmission resources of the radio remote unit (RRU) and the DU, the physical layer function of some DUs can be moved up to the RRU. The miniaturization of RRUs, even more aggressive DUs, can be combined with RRUs.

CU can be deployed in a centralized manner, DU deployment depends on the actual network environment, core urban area, high traffic density, small station spacing, limited space in the computer room, such as colleges and universities, large-scale performance venues, etc., DU can also be centralized DUs can be deployed in a distributed manner, such as suburban counties and mountainous areas.

In the embodiment of the present invention, a synchronization signal block (SS block, SSB) is a signal structure defined in the NR wireless network, and a synchronization signal block will be briefly described below with reference to FIG. 2 .

As shown in FIG. 2, each synchronization signal block is composed of an Orthogonal Frequency Division Multiplexing (OFDM) symbol of a Primary Synchronization Signal (PSS), and a symbol of a Secondary Synchronization Signal (Secondary Synchronization Signal). , SSS), and two symbols of the Physical Broadcast Channel (PBCH). The locations of PSS, SSS, and PBCH in the sync block are shown in Figure 2, where the PSS/SSS sequence length is 127, occupying 127 subcarriers (SC) in the frequency domain, and the PBCH is occupied in the frequency domain. 288 subcarriers.

In some possible implementations, the synchronization signal block may correspond to a beam of the network device, that is, one synchronization signal block corresponds to one beam of the network device or multiple synchronization signal blocks correspond to one beam of the network device. It can be understood that the measurement of the beam is actually measuring the measurement signal in the synchronization signal block corresponding to the beam. It can also be understood that the plurality of synchronization signal blocks correspond to one beam of the network device, and the measurement of the beam is actually measuring the measurement signals in the plurality of synchronization signal blocks corresponding to the beam.

In various embodiments of the present invention, the symbols and subcarriers respectively represent granular units of time-frequency resources of the transmission signal in the time domain and the frequency domain, which may have meanings in the current communication system, and may also have meanings in future communication systems. In addition, if their names change in future communication systems, they can also be transformed into names in future communication systems.

In various embodiments of the present invention, for the sake of brevity, the maximum number of synchronization signal blocks included in the synchronization signal burst set, that is, the maximum number of synchronization signal blocks that the network device can transmit in a synchronization signal burst set is denoted as L. , the number of synchronization signal blocks actually transmitted by the network device is recorded as N. It should also be noted that, in various embodiments of the present invention, the first synchronization signal block actually transmitted is the starting position of the actual transmission synchronization signal block.

In the embodiment of the present invention, the maximum number of synchronization signal blocks that can be sent by the network device in one transmission period of the synchronization signal is a certain value, that is, the maximum number of synchronization signal blocks included in the synchronization signal burst set is determined. For example, when the frequency is between 6 GHz and 52.6 GHz, the maximum number of sync signal blocks that the network device can transmit is 64. In the actual communication process, the number of synchronization signal blocks actually sent by the network device may be less than the maximum number, for example, less than 64, and the network device may use the time-frequency resource of the untransmitted synchronization signal block to transmit other data or schedule the terminal device for transmission. When the number of synchronization signal blocks actually sent by the network device is less than the maximum number, it is necessary to notify the terminal device which synchronization signal blocks are actually transmitted, so that the terminal device can receive the synchronization signal block on the accurate time-frequency resource. For ease of understanding, FIG. 3 shows a synchronization signal burst set, the maximum number of synchronization signal blocks included in the synchronization signal burst set is 8, that is, L=8. In the actual communication process, the number of synchronization signal blocks sent by the network device is 6, that is, the sequence numbers of the actually transmitted synchronization signal blocks are 0 to 3 and 6 to 7, and the synchronization signal blocks with sequence numbers 4 and 5 are not transmitted.

The synchronization signal block indication method provided by the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 4 is a schematic interaction flowchart of a synchronization signal block indication method 400 according to an embodiment of the present invention. The network device in FIG. 4 may be the network device 102 in the system shown in FIG. 1. The terminal device may be the

terminal devices

104, 106, 108, 110, 112 and 114 in the system shown in FIG. The number of the network device and the terminal device may not be limited to the examples in this embodiment and other embodiments, and details are not described herein again.

410. The network device generates a synchronization signal block indication message, where the synchronization signal block indication message is used to indicate the number of synchronization signal blocks actually transmitted and the sequence number of the first synchronization signal block actually sent, where the actually transmitted synchronization signal block The serial number is continuous.

In a possible design, the synchronization signal block indication message includes synchronization signal block quantity information and synchronization signal block number information, and the synchronization signal block quantity information is used to indicate the number of actually transmitted synchronization signal blocks, and the synchronization signal block serial number information Used to indicate the sequence number of the first sync signal block actually sent. In this case, since the sequence number of the actually transmitted synchronization signal block is continuous, the network device indicates the number of actually transmitted synchronization signal blocks and the first actually transmitted by the synchronization signal block number information and the synchronization signal block number information, respectively. The serial number of the synchronization signal block can indicate to the terminal device all the synchronization signal blocks actually transmitted. For example, the maximum number of synchronization signal blocks that can be included in the synchronization signal burst set is L, and the serial numbers are 0, 1, ..., L-1, respectively, and the number of synchronization signal blocks actually transmitted by the network device is N (N ≤ L). And the sequence number of the first synchronization signal block in the N actually transmitted synchronization signal blocks is j. As shown in FIG. 5, the actually transmitted synchronization signal block is all synchronization signals in the middle of the sequence number j to the sequence number N+j-1. Piece. It should be noted that when the values of N are different, the range of values of j may also be different. Table 1 shows the correspondence between values of N and j by taking L=64 as an example. It should be noted that the above table 1 is only an example, and the value correspondence between N and j may also be expressed in other forms, which is not limited herein.

Optionally, in the specific implementation process, the synchronization signal block quantity information may be a first field, and the synchronization signal block sequence number information may be a second field, where the first field is used to indicate the number of synchronization signal blocks actually sent, The two fields are used to indicate the sequence number of the first sync signal block actually transmitted. For example, when the maximum number of synchronization signal blocks included in the burst of the synchronization signal is L=64, when the first field is 001111, the number of synchronization signal blocks actually sent is 15, and the second field may be 000001. Then, the sequence number of the first sync signal block actually transmitted is 1. At this time, the terminal device can determine, by using the synchronization signal block quantity information and the synchronization signal block number information, that the sequence number of the actually transmitted synchronization signal block is 1-15.

Optionally, in the specific implementation process, the synchronization signal block quantity information and the synchronization signal block sequence number information belong to the same field, and the first part and the second part of the field are respectively used to indicate the number of the actually sent synchronization signal blocks and the actual transmission. The first sync signal block number. Taking the maximum number of synchronization signal blocks included in the burst of the synchronization signal as L=64, when the first part of the field is 001111, the number of synchronization signal blocks actually sent is 15, and the second of the field is at this time. The part can be 000001, and the sequence number of the first sync signal block actually sent is 1. At this time, the terminal device can determine, by using the synchronization signal block quantity information and the synchronization signal block number information, that the sequence number of the actually transmitted synchronization signal block is 1-15.

Table 1

In a possible design, the sync signal block indication message is a sync signal block index, the sync signal block index I _SS and the number N of actually transmitted sync signal blocks and the sequence number of the first sync signal block actually transmitted. There is a correspondence between the different sync signal block indexes I _SS corresponding to different N and j. In the specific implementation process, the network device only needs to indicate I _SS . After receiving the I _SS , the terminal device can obtain N and j according to the correspondence between I _SS and N and j, and thus can determine the actually transmitted synchronization signal block. . As an example, the correspondence between I _SS and N, j can be described by using Table 2, for example, the synchronization signal block index I _SS = 288 indicated by the network device. After receiving the I _SS , the terminal device can obtain N= according to Table 2. 16, j=I _SS -276=12, that is, the terminal device can determine that the number of synchronization signal blocks actually sent by the network device is 16 and the sequence number of the first synchronization signal block actually transmitted is 12, that is, the actually transmitted synchronization signal block. The serial number is 12-27. It should be noted that the above table 2 is only an example, and the correspondence between I _SS and N and j can also be expressed in other forms, which is not limited herein.

I _SS I _SS	NN	xx
00	6464	I _SS-0 I _SS -0
1-51-5	6060	I _SS-1 I _SS -1
6-146-14	5656	I _SS-6 I _SS -6
15-2715-27	5252	I _SS-15 I _SS -15
28-4428-44	4848	I _SS-28 I _SS -28
45-6545-65	4444	I _SS-45 I _SS -45
66-9066-90	4040	I _SS-66 I _SS -66
91-11991-119	3636	I _SS-91 I _SS -91
120-152120-152	3232	I _SS-120 I _SS -120
153-189153-189	2828	I _SS-153 I _SS -153
190-230190-230	24twenty four	I _SS-190 I _SS -190
231-275231-275	2020	I _SS-231 I _SS -231
276-324276-324	1616	I _SS-276 I _SS -276
325-377325-377	1212	I _SS-325 I _SS -325
378-434378-434	88	I _SS-378 I _SS -378
435-495435-495	44	I _SS-435 I _SS -435

Table 2

In one possible design, the number of sync signal blocks actually transmitted belongs to a preset set of values. For example, when the maximum number L of synchronization signal blocks included in the synchronization signal burst set is 64, the number N of actually transmitted synchronization signal blocks may belong to the following value set {4, 8, 12, ..., 60, 64}, that is, The number N of the actually transmitted synchronization signal blocks is a multiple of 4, and the value set has 16 values, which can be indicated by 4 bits, so that the overhead of the network device in indicating the actually transmitted synchronization signal block can be reduced. . It should be pointed out that when the values of N are different, the range of values of j is also different. Table 3 shows that L=64 and N belong to the set of values {4, 8, 12, ..., 60, 64}. The value correspondence between N and j.

NN	jj
6464	{0}{0}
6060	{0,1,2,3,4}{0,1,2,3,4}
5656	{0,1,2,…,8}{0,1,2,...,8}
5252	{0,1,2,…,12}{0,1,2,...,12}
4848	{0,1,2,…,16}{0,1,2,...,16}
4444	{0,1,2,…,20}{0,1,2,...,20}
4040	{0,1,2,…,24}{0,1,2,...,24}
3636	{0,1,2,…,28}{0,1,2,...,28}
3232	{0,1,2,…,32}{0,1,2,...,32}
2828	{0,1,2,…,36}{0,1,2,...,36}
24twenty four	{0,1,2,…,40}{0,1,2,...,40}
2020	{0,1,2,…,44}{0,1,2,...,44}
1616	{0,1,2,…,48}{0,1,2,...,48}
1212	{0,1,2,…,52}{0,1,2,...,52}
88	{0,1,2,…,56}{0,1,2,...,56}
44	{0,1,2,…,60}{0,1,2,...,60}

table 3

420. The network device sends the synchronization signal block indication message.

In a possible design, the synchronization signal block indication message is one of the following signaling: physical layer signaling, media access control MAC layer signaling, and radio resource control RRC layer signaling. In this case, the network device can determine the number of synchronization signal blocks that need to be transmitted according to system performance or the like, and generate a synchronization signal block indication message. The synchronization signal block indication message may be sent by physical layer signaling (eg, in the PBCH), or by media access control MAC layer signaling (eg, by a MAC control unit), or by RRC layer signaling through radio resources. The order is sent, and can also be sent by other message formats, which is not limited herein.

430. The terminal device determines, according to the synchronization signal block indication message, the number of synchronization signal blocks actually transmitted and the sequence number of the first synchronization signal block actually transmitted.

After receiving the synchronization signal block indication message sent by the network device, the terminal device determines the number of the actually transmitted synchronization signal blocks and the sequence number of the first synchronization signal block actually transmitted according to the synchronization signal block indication message. In a specific implementation process, the terminal device may specifically determine the number of the actually sent synchronization signal blocks and the sequence number of the first synchronization signal block that is actually sent by parsing the synchronization signal block indication message, and the specific implementation process already exists in step 410. Detailed description will not be repeated here.

It can be seen that, in the embodiment of the present invention, the network device indicates the number of the actually transmitted synchronization signal blocks and the sequence number of the first synchronization signal block actually transmitted through the synchronization signal block indication message, due to the actually transmitted synchronization signal block. The sequence number is continuous. Based on the number of synchronization signal blocks actually transmitted and the sequence number of the first synchronization signal block actually transmitted, the network device may indicate to the terminal device all the synchronization signal blocks actually transmitted, so that the terminal device receives the synchronization signal block. .

FIG. 6 is a schematic interaction flowchart of another synchronization signal block indication method 600 according to an embodiment of the present invention. The network device in FIG. 6 may be the network device 102 in the system shown in FIG. 1. The terminal device may be the

terminal devices

610. The network device generates a synchronization signal block indication message, where the synchronization signal block indication message is used to indicate the number of the actually transmitted synchronization signal blocks and the sequence number of the first synchronization signal block actually sent, where two adjacent actual transmissions are sent. Sequence number interval of sync signal block

Indicates rounding down, L is the maximum number of synchronization signal blocks that the network device can transmit in a burst of synchronization signals, and N is the number of synchronization signal blocks actually transmitted.

In a possible design, the synchronization signal block indication message includes synchronization signal block quantity information and synchronization signal block number information, and the synchronization signal block quantity information is used to indicate the number of actually transmitted synchronization signal blocks, and the synchronization signal block serial number information Used to indicate the sequence number of the first sync signal block actually sent. In this case, the sequence number interval of the adjacent two actually transmitted sync signal blocks

It is determined that the network device indicates, by the synchronization signal block transmission information, the number of the actually transmitted synchronization signal blocks and the sequence number of the first synchronization signal block actually transmitted, so that all the synchronization signal blocks actually transmitted can be indicated to the terminal device. Take L=64 and N=15 as an example.

If the sequence number of the first synchronization signal block actually transmitted is j=1, the sequence numbers of all the synchronization signal blocks actually transmitted are 1, 5, 9, 13, 17, 21, ..., 53, 57. Correspondingly, when the terminal device receives the synchronization signal block quantity information sent by the network device as N=15, and the synchronization signal block sequence number information is j=1, it can be determined that the sequence numbers of all synchronization signal blocks sent by the network device are 1, 5, 9, 13, 17, 21, ..., 53, 57.

In a possible design, the synchronization signal block indication message is a synchronization signal block index, and the synchronization signal block index I _SS and the number N of the actually transmitted synchronization signal blocks and the sequence number j of the first synchronization signal block actually transmitted exist. Correspondence, that is, different sync block index I _SS corresponds to different N and j. In this case, the network device indicates the actually transmitted sync signal block by the sync signal block index. Taking L=64 as an example, when the synchronization signal block index is I _SS =1, the corresponding number of actually transmitted synchronization signal blocks may be N=16, and the sequence number of the first synchronization signal block actually transmitted may be j=0. At this time, the sequence number interval between two adjacent synchronous signal blocks that are actually transmitted

Then, the serial number of the synchronization signal block actually transmitted by the network device is 0, 4, 8, 12, 16, ..., 52, 56, 60. Correspondingly, when the terminal device receives the synchronization signal block index sent by the network device as I _SS =1, it can be determined that the number of synchronization signal blocks actually sent by the network device is N=16, and the first synchronization signal block actually sent Sequence number j=0, based on the sequence number interval between adjacent two actually transmitted sync signal blocks

It can be determined that the sequence numbers of the synchronization signal blocks actually transmitted by the network device are 0, 4, 8, 12, 16, ..., 52, 56, 60.

In one possible design, the number of sync signal blocks actually transmitted belongs to a preset set of values. Taking L=64 as an example, the number of synchronization signal blocks actually transmitted may belong to the following value set {4, 8, 12, ..., 60, 64}, that is, the number of actually transmitted synchronization signal blocks is a multiple of 4, There are 16 values in the value set, which can be indicated by 4 bits. In this way, the overhead of the network device in indicating the actually transmitted synchronization signal block can be reduced.

In one possible design, the sequence number interval of two adjacently transmitted sync signal blocks

Indicates rounding down and Δ is a positive integer. In this case, the value of the sequence number interval Δ of two adjacently transmitted synchronization signal blocks may include several situations. For example, when L=64 and N=16, Δ≤4, the value of Δ may be 1, 2, 3 and 4, at this time, the synchronization signal block indication message may include the number information of the actually transmitted synchronization signal block and the serial number information of the first synchronization signal block actually transmitted, and the adjacent two actually transmitted synchronization signal blocks. The value of the serial number interval Δ. Exemplarily, the synchronization signal block indication message transmitted by the network device may include synchronization signal block quantity information, for example, N=16; synchronization signal block sequence number information, for example, j=0; Δ value information, for example, Δ=3. Correspondingly, the terminal device receives the synchronization signal block quantity information sent by the network device as N=16, the sequence number information of the synchronization signal block is j=0, and the sequence number interval Δ=3, then the synchronization signal block actually sent by the network device can be determined. The serial numbers are 0, 3, 6, 9, 12, ..., 42, 45.

620. The network device sends the synchronization signal block indication message.

630. The terminal device determines, according to the synchronization signal block indication message, the number of synchronization signal blocks actually transmitted and the sequence number of the first synchronization signal block that is actually sent.

After receiving the synchronization signal block indication message sent by the network device, the terminal device determines the number of the actually transmitted synchronization signal blocks and the sequence number of the first synchronization signal block actually transmitted according to the synchronization signal block indication message. In a specific implementation process, the terminal device may specifically determine the number of the actually sent synchronization signal blocks and the sequence number of the first synchronization signal block that is actually sent by parsing the synchronization signal block indication message, and the specific implementation process is detailed in step 610. The description is not repeated here.

It can be seen that, in the embodiment of the present invention, the network device indicates the number of the actually transmitted synchronization signal blocks and the sequence number of the first synchronization signal block actually transmitted through the synchronization signal block indication message, because the two adjacent actual transmissions are The sequence number interval of the synchronization signal block is determined. Based on the number of the actually transmitted synchronization signal blocks and the sequence number of the first synchronization signal block actually transmitted, the network device may indicate to the terminal device all the synchronization signal blocks actually transmitted, so as to facilitate the terminal. The device receives the sync signal block.

It is further noted that the embodiment of the present invention further provides a synchronization signal block indication method, where the method is specifically: when the number of synchronization signal blocks actually transmitted is less than or equal to the number of synchronization signal blocks that are not actually transmitted, The network device may indicate the number of the actually transmitted synchronization signal blocks and the sequence number of the first synchronization signal block actually transmitted through the synchronization signal block indication message, and the sequence number interval of the adjacent two actually transmitted synchronization signal blocks is

When the number of synchronization signal blocks actually transmitted is greater than the number of synchronization signal blocks that are not actually transmitted, the network device may also indicate the number of synchronization signal blocks actually transmitted and the first synchronization signal that is not actually transmitted through the synchronization signal block indication message. The serial number of the block, at this time, the sequence number interval of two adjacent unsent sync signal blocks is

The actually transmitted sync signal block is a sync signal block remaining after removing all sync signal blocks that are not actually transmitted. Where L is the maximum number of synchronization signal blocks that the network device can transmit in a synchronization signal burst set, and N is the number of synchronization signal blocks actually transmitted. Illustratively, when L=64, N=16, the number of sync signal blocks actually transmitted at this time is smaller than the number of sync signal blocks that are not actually transmitted.

If the sequence number j=0 of the first synchronization signal block actually transmitted, the sequence numbers of all the synchronization signal blocks actually transmitted are 0, 4, 8, 12, 16, ..., 56, 60. When L=64 and N=48, the number of sync signal blocks actually transmitted at this time is greater than the number of sync signal blocks that are not actually transmitted.

If the sequence number of the first synchronization signal block that is not actually transmitted is i=1, the sequence numbers of all the synchronization signal blocks that are not actually transmitted are 1, 5, 9, 13, 17, 21, ..., 53, 57, actually The transmitted sync signal block is a sync signal block remaining after removing all sync signal blocks that are not actually transmitted.

In one possible design, the number of sync signal blocks actually transmitted may belong to a preset set of values. For example, when the maximum number of synchronization signal blocks included in the synchronization signal burst set is L=64, the number N of actually transmitted synchronization signal blocks may belong to the following value set {64, 60, 56, 48, 32, 16, 8 4}. It should be pointed out that when the values of N are different, the range of values of i and j is also different (i is the sequence number of the first synchronization signal block that is not actually transmitted, and j is the first synchronization signal block actually transmitted. No.), Table 4 shows the value correspondence between N and i and j by taking L=64 and N belonging to the set of values {64, 60, 56, 48, 32, 16, 8, 4}. It is to be noted that "empty" in Table 4 represents that in this case, there is no value corresponding to the number N of sync signal blocks actually transmitted.

NN	jj	ii
6464	空air	空air
6060	空air	{0,1,…,15}{0,1,...,15}
5656	空air	{0,1,…,7}{0,1,...,7}
4848	空air	{0,1,2,3}{0,1,2,3}
3232	{0,1}{0,1}	空air
1616	{0,1,2,3}{0,1,2,3}	空air
88	{0,1,…,7}{0,1,...,7}	空air
44	{0,1,…,15}{0,1,...,15}	空air

Table 4

In one possible design, the actually transmitted sync signal block can be indicated by the sync signal block index. In this case, when the number of actually transmitted sync signal blocks is less than or equal to the number of sync signal blocks that are not actually transmitted, the sync signal block index I _SS and the number N of actually transmitted sync signal blocks and the actual transmitted number There is a correspondence between the sequence numbers j of a synchronization signal block, that is, different synchronization signal block indexes I _SS correspond to different N and j; when the number of actually transmitted synchronization signal blocks is larger than the number of actually unsent synchronization signal blocks The synchronization signal block index I _SS has a correspondence relationship between the number N of actually transmitted synchronization signal blocks and the sequence number i of the first synchronization signal block that is not actually transmitted, that is, different synchronization signal block indexes I _SS correspond to different Ns. And i. For convenience of understanding, taking L=64 as an example, the number N of actually transmitted sync signal blocks may belong to the following set of values {64, 60, 56, 48, 32, 16, 8, 4}, for example, I _SS and The correspondence between N and j, and the correspondence between I _SS and N and i can be described by Table 5. For example, when I _SS = 16, according to Table 5, N=60 can be obtained, i=I _SS -1=15, that is, the number of sync signal blocks that are not actually transmitted is 64-60=4, and the first one that is not actually transmitted. The sequence number of the synchronization signal block is 15, and the sequence number interval of two adjacent synchronization signal blocks that are not actually transmitted

The serial numbers of the four sync signal blocks that are not actually transmitted are 15, 31, 47, and 63, respectively, and the actually transmitted sync signal block is the sync signal block remaining after removing all the sync signal blocks that are not actually transmitted. For example, when I _SS = 34, according to Table 5, N=16, j=I _SS -31=3, that is, the number of actually transmitted sync signal blocks is 16, and the number of the first sync signal block actually transmitted is obtained. 3, the sequence number interval of two adjacent synchronous signal blocks

The serial numbers of the actually transmitted sync signal blocks are 3, 7, 11, 15, ..., 59, 63, respectively. It is to be noted that "empty" in Table 5 represents that in this case, there is no value corresponding to the sync block index I _SS .

I _SS I _SS	N N	jj		ii
00	6464	空air	空air
1-161-16	6060	空air	I _SS-1 I _SS -1
17-2417-24	5656	空air	I _SS-17 I _SS -17
25-2825-28	4848	空air	I _SS-25 I _SS -25
29-3029-30	3232	I _SS-29 I _SS -29	空air
31-3431-34	1616	I _SS-31 I _SS -31	空air
35-4235-42	88	I _SS-35 I _SS -35	空air
43-5843-58	44	I _SS-43 I _SS -43	空air

table 5

FIG. 7 is a schematic interaction flowchart of still another synchronization signal block indication method 700 according to an embodiment of the present invention. The network device in FIG. 7 may be the network device 102 in the system shown in FIG. 1. The terminal device may be the

terminal devices

710. The network device generates a synchronization signal block indication message, where the synchronization signal block indication message is used to indicate the actually transmitted synchronization signal block group, wherein the synchronization signal block included in the synchronization signal block group is predetermined.

In the embodiment of the present invention, the network device may group the L synchronization signal blocks in the synchronization signal burst, and then send the synchronization signal block in units of groups. The specific grouping manner of the synchronization signal block may be determined in advance by the communication protocol, or may be determined by the network device and the terminal device during the communication process, and may be determined by other means, and is not limited herein. It can be understood that, when the grouping manner of the synchronization signal block is determined, the synchronization signal block included in each synchronization signal block group is also determined.

In one possible design, the sequence numbers of the sync signal blocks within each sync block group are contiguous. Taking L=64 as an example, 64 sync signal blocks are equally divided into 8 groups, and each group contains 8 sync signal blocks, which are respectively recorded as sync signal block group 0, sync signal block group 1, ..., sync signal block group 7 . The sequence of the synchronization signal block included in the synchronization signal block group 0 is 0 to 7, the sequence number of the synchronization signal block included in the synchronization signal block group 1 is 8 to 15, and so on, and the synchronization included in the synchronization signal block group 7 The number of the signal block is 56 to 63.

In one possible design, the sequence numbers of the sync signal blocks within each sync block group are discontinuous. Taking L=64 as an example, 64 sync signal blocks are equally divided into 8 groups, and each group contains 8 sync signal blocks, which are respectively recorded as sync signal block group 0, sync signal block group 1, ..., sync signal block group 7 . The sequence of the synchronization signal block included in the synchronization signal block group 0 may be 0, 8, 16, 24, 32, 40, 48, 56, and the sequence number of the synchronization signal block included in the synchronization signal block group 1 may be 1,9 , 17, 25, 33, 41, 49, 57, and so on, the sequence of the sync signal blocks included in the sync block group 7 may be 7, 15, 23, 31, 39, 47, 55, 63.

In one possible design, the number of sync signal blocks included in each sync signal block group is the same. Alternatively, the number of synchronization signal blocks included in each of the synchronization signal block groups is different. Taking L=64 as an example, 64 sync signal blocks are divided into 5 groups, which are respectively recorded as sync signal block group 0, sync signal block group 1, ..., sync signal block group 4, wherein sync signal block groups 0 to 3 include 12 sync signal blocks, sync signal block group 4 contains 16 sync signal blocks.

In one possible design, the sync signal block indication message is a bit bitmap that is used to indicate the actually transmitted sync signal block group. Specifically, the bit bitmap is a bit sequence having the same length as the number of sync signal block groups, and each bit in the sequence corresponds to one sync signal block group. If the value of the bit is 1, it means that the corresponding sync signal block group is transmitted; if the value of the bit is 0, it means that the corresponding sync signal block group is not transmitted. Taking L=64 as an example, the above 64 sync signal blocks are equally divided into 8 groups, which are respectively recorded as sync signal block groups 0-7, and each sync signal block group includes 8 sync signal blocks, as shown in FIG. The actually transmitted sync signal block groups are 0, 1, 3, 6, and 7, and the bit sequence 11010011 can be used to indicate the actually transmitted sync signal block group.

In a possible design, the number of synchronization signal blocks included in each synchronization signal block group may be 1, that is, if each synchronization signal block group contains only one synchronization signal block, the synchronization signal block does not need to be performed. Grouping. In this case, the network device may indicate the actually transmitted synchronization signal block by using a bit bitmap, and the specific implementation method is the same as the synchronization signal block group actually indicated by the bit bitmap, and may refer to the related description above. This will not be repeated here.

720. The network device sends the synchronization signal block indication message.

730. The terminal device determines, according to the synchronization signal block indication message, the actually transmitted synchronization signal block group.

After receiving the synchronization signal block indication message sent by the network device, the terminal device determines the actually transmitted synchronization signal block group according to the synchronization signal block indication message. Since the synchronization signal block in the synchronization signal block group is predetermined, the terminal device may determine the actual All sync signal blocks sent. In a specific implementation process, the terminal device may specifically determine the actually transmitted synchronization signal block group by parsing the synchronization signal block indication message, thereby determining all the synchronization signal blocks. The specific implementation process has been described in detail in step 710, and details are not described herein again.

It can be seen that, in the embodiment of the present invention, the network device indicates the actually transmitted synchronization signal block group by using the synchronization signal block indication message. Since the synchronization signal block included in the synchronization signal block group is predetermined, the network device may The terminal device indicates all the synchronization signal blocks actually transmitted, so that the terminal device receives the synchronization signal block.

FIG. 9 is a schematic diagram of a logical structure of a network device 900 according to an embodiment of the present invention. In a specific implementation process, the network device may be, for example but not limited to, the network device 102 in FIG. As shown in FIG. 9, the network device includes a generating module 910 and a sending module 920.

In a possible implementation, the network device 900 is configured to perform the steps corresponding to the network device in the method of the method 400, namely:

The generating module 910 is configured to generate a synchronization signal block indication message, where the synchronization signal block indication message is used to indicate the number of synchronization signal blocks actually transmitted and the sequence number of the first synchronization signal block actually sent, where the actually transmitted The sequence number of the sync signal block is continuous.

The sending module 920 is configured to send the synchronization signal block indication message.

In this case, the related technical features related to the network device 900 have been described in detail above with reference to the accompanying drawings, such as but not limited to FIG. 4 and the method 400, and thus are not described herein again.

In a further possible implementation, the network device 900 is configured to perform the steps corresponding to the network device in the method of the method 600, namely:

The generating module 910 is configured to generate a synchronization signal block indication message, where the synchronization signal block indication message is used to indicate the number of synchronization signal blocks actually transmitted and the sequence number of the first synchronization signal block actually sent, where two adjacent actual Sequence number interval of the transmitted sync signal block

In this case, the related technical features involved in the network setting 900 have been described in detail above with reference to the accompanying drawings, such as but not limited to FIG. 6 and the method 600, and thus are not described herein again.

In a further possible implementation, the network device 900 is configured to perform the steps corresponding to the network device in the method of the method 700, namely:

The generating module 910 is configured to generate a synchronization signal block indication message, the synchronization signal block indication message is used to indicate the actually transmitted synchronization signal block group, wherein the synchronization signal block in the synchronization signal block group is predetermined.

In this case, the related technical features related to the network device 900 have been described in detail above with reference to the accompanying drawings, such as, but not limited to, FIG. 7 and the method 700, and thus are not described herein again.

FIG. 10 is a schematic diagram of a logical structure of a terminal device 1000 according to an embodiment of the present invention. In a specific implementation process, the terminal device may be, for example but not limited to, the

terminal devices

104, 106, 108, 110, 112, and 114 in FIG. As shown in FIG. 10, the terminal device 1000 includes a receiving module 1010 and a determining module 1020.

In a possible implementation, the terminal device 1000 is configured to perform the steps corresponding to the terminal device in the method of the method 400, namely:

The receiving module 1010 is configured to receive a synchronization signal block indication message, where the synchronization signal block indication message is used to indicate the number of the actually transmitted synchronization signal blocks and the sequence number of the first synchronization signal block actually sent, where the actually transmitted The sequence number of the sync signal block is continuous.

The determining module 1020 is configured to determine, according to the synchronization signal block indication message, the number of synchronization signal blocks actually transmitted and the sequence number of the first synchronization signal block actually transmitted.

In this case, related technical features related to the terminal device 1000 have been described in detail above with reference to the accompanying drawings, such as, but not limited to, FIG. 4 and the method 400, and thus are not described herein again.

In a possible implementation, the terminal device 1000 is configured to perform the steps corresponding to the terminal device in the method of the method 600, namely:

The receiving module 1010 is configured to receive a synchronization signal block indication message, where the synchronization signal block indication message is used to indicate the number of the actually transmitted synchronization signal blocks and the sequence number of the first synchronization signal block actually sent, where two adjacent actual Sequence number interval of the transmitted sync signal block

In this case, the related technical features related to the terminal device 1000 have been described in detail above with reference to the accompanying drawings, such as but not limited to FIG. 6 and the method 600, and thus are not described herein again.

In a possible implementation, the terminal device 1000 is configured to perform the steps corresponding to the terminal device in the method of the method 700, namely:

The receiving module 1010 is configured to receive a synchronization signal block indication message, where the synchronization signal block indication message is used to indicate an actually transmitted synchronization signal block group, wherein the synchronization signal block in the synchronization signal block group is predetermined.

The determining module 1020 is configured to determine the actually transmitted synchronization signal block group according to the synchronization signal block indication message.

In this case, related technical features related to the terminal device 1000 have been described in detail above with reference to the accompanying drawings, such as, but not limited to, FIG. 7 and the method 700, and thus are not described herein again.

FIG. 11 is a schematic structural diagram of hardware of a network device 1100 according to an embodiment of the present invention. As shown in FIG. 11, the network device 1100 includes a processor 1102, a transceiver 1104, a plurality of antennas 1106, a memory 1108, an I/O (Input/Output) interface 1110, and a bus 1112. The transceiver 1104 further includes a transmitter 11042 and a receiver 11044 for further storing instructions 11082 and data 11084. Further, the processor 1102, the transceiver 1104, the memory 1108, and the I/O interface 1110 are communicably connected to each other through a bus 1112, and the plurality of antennas 11011 are connected to the transceiver 1104.

The processor 1102 can be a general-purpose processor, such as, but not limited to, a central processing unit (CPU), or a dedicated processor such as, but not limited to, a digital signal processor (DSP), an application. Application Specific Integrated Circuit (ASIC) and Field Programmable Gate Array (FPGA). Moreover, processor 1102 can also be a combination of multiple processors. In particular, in the technical solution provided by the embodiment of the present invention, the processor 1102 can be configured to perform, for example, step 410 in FIG. 4, step 610 in FIG. 6, step 710 in FIG. 7, and FIG. The operations performed by module 910 are generated in network device 900. The processor 1102 may be a processor specifically designed to perform the above steps and/or operations, or may be a processor that performs the above steps and/or operations by reading and executing the instructions 11082 stored in the memory 1108, the processor 1102 Data 11084 may be required during the execution of the above steps and/or operations.

The transceiver 1104 includes a transmitter 11042 and a receiver 11044, wherein the transmitter 11042 is configured to transmit signals through at least one of the plurality of antennas 1106. Receiver 11044 is configured to receive signals through at least one of the plurality of antennas 1106. In particular, in the technical solution provided by the embodiment of the present invention, the transmitter 11042 may be specifically configured to be executed by at least one of the plurality of antennas 1106. For example, step 420 in FIG. 4, step 620 in FIG. Step 720 in FIG. 7 and the operation performed by the transmitting module 920 in the network device 900 shown in FIG.

The memory 1108 can be various types of storage media, such as random access memory (RAM), read only memory (ROM), non-volatile RAM (Non-Volatile RAM, NVRAM), Programmable ROM (PROM), Erasable PROM (EPROM), Electrically Erasable PROM (EEPROM), flash memory, optical memory, and registers. The memory 1108 is specifically configured to store instructions 11082 and data 11084, and the processor 1102 can perform the steps and/or operations described above by reading and executing the instructions 11082 stored in the memory 1108, performing the steps and/or operations described above. Data 11084 may be required during the process.

The I/O interface 1110 is for receiving instructions and/or data from peripheral devices and outputting instructions and/or data to peripheral devices.

It should be noted that, in a specific implementation process, the network device 1100 may also include other hardware devices, which are not enumerated herein.

FIG. 12 is a schematic structural diagram of hardware of a terminal device 1200 according to an embodiment of the present invention. As shown in FIG. 12, device 1200 includes a processor 1202, a transceiver 1204, a plurality of antennas 1206, a memory 1208, an I/O (Input/Output) interface 1210, and a bus 1212. The transceiver 1204 further includes a transmitter 12042 and a receiver 12044 for further storing instructions 12082 and data 12084. In addition, the processor 1202, the transceiver 1204, the memory 1208, and the I/O interface 1210 are communicatively coupled to one another via a bus 1212, and the plurality of antennas 1206 are coupled to the transceiver 1204.

The processor 1202 may be a general-purpose processor, such as, but not limited to, a central processing unit (CPU), or may be a dedicated processor such as, but not limited to, a digital signal processor (DSP), an application. Application Specific Integrated Circuit (ASIC) and Field Programmable Gate Array (FPGA). Additionally, processor 1202 can also be a combination of multiple processors. In particular, in the technical solution provided by the embodiment of the present invention, the processor 1202 is configured to perform, for example, step 430 in FIG. 4, step 630 in FIG. 6, step 730 in FIG. 7, and the terminal shown in FIG. The operations performed by module 1020 are determined in device 1000. The processor 1202 may be a processor specifically designed to perform the above steps and/or operations, or may be a processor that performs the above steps and/or operations by reading and executing the instructions 12082 stored in the memory 1208, the processor 1202 Data 12084 may be required during the execution of the above steps and/or operations.

The transceiver 1204 includes a transmitter 12042 and a receiver 12044, wherein the transmitter 12042 is configured to transmit signals through at least one of the plurality of antennas 1206. Receiver 12044 is configured to receive signals through at least one of the plurality of antennas 1206. In particular, in the technical solution provided by the embodiment of the present invention, the receiver 12044 may be specifically configured to be executed by using at least one antenna among the multiple antennas 1206. For example, the receiving module 1010 in the terminal device 1000 shown in FIG. The action performed.

The memory 1208 can be various types of storage media, such as random access memory (RAM), read only memory (ROM), non-volatile RAM (Non-Volatile RAM, NVRAM), Programmable ROM (PROM), Erasable PROM (EPROM), Electrically Erasable PROM (EEPROM), flash memory, optical memory, and registers. The memory 1208 is specifically configured to store instructions 12082 and data 12084, and the processor 1202 can perform the steps and/or operations described above by reading and executing the instructions 12082 stored in the memory 1208, performing the steps and/or operations described above. Data 12084 may be required during the process.

The I/O interface 1210 is for receiving instructions and/or data from peripheral devices and outputting instructions and/or data to peripheral devices.

It should be noted that in the specific implementation process, the terminal device 1200 may further include other hardware devices, which are not enumerated herein.

The application also provides a communication system comprising the network device of any of the above and any of the terminal devices.

The present application also provides a chip system including a processor for supporting the above-mentioned network device to implement the functions involved, for example, generating or processing data and/or information involved in the above method embodiments. In a possible design, the chip system further includes a memory for storing necessary program instructions and data of the network device. The chip system can be composed of chips, and can also include chips and other discrete devices.

The present application also provides a chip system including a processor for supporting the above-mentioned terminal device to implement the functions involved, for example, receiving or processing data and/or information involved in the above method embodiments. In a possible design, the chip system further comprises a memory for storing necessary program instructions and data of the terminal device. The chip system can be composed of chips, and can also include chips and other discrete devices.

It should be noted that, 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, it 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 described in accordance with embodiments of the present invention are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be stored by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a Solid State Disk (SSD)) or the like.

A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

The terms "first", "second", "third", "fourth", etc. (if present) in the specification and claims of the present application and the above figures are used to distinguish similar objects, and are not necessarily used for Describe a specific order or order. It is to be understood that the data so used may be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than what is illustrated or described herein. In addition, the terms "comprises" and "comprises" and "the" and "the" are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to Those steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices.

In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application, in essence or the contribution to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes.

The above embodiments are only used to explain the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still The technical solutions described in the embodiments are modified, or the equivalents of the technical features are replaced by the equivalents. The modifications and substitutions of the embodiments do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

A synchronization signal block indication method, the method comprising:

The network device generates a synchronization signal block indication message, the synchronization signal block indication message is used to indicate the number of the actually transmitted synchronization signal blocks and the sequence number of the first synchronization signal block actually transmitted, wherein the actually transmitted synchronization signal block The serial number is continuous;

The network device sends the synchronization signal block indication message.
The method according to claim 1, wherein said synchronization signal block indication message comprises synchronization signal block number information and synchronization signal block number information, said synchronization signal block number information being used to indicate an actually transmitted synchronization signal block. The number of the synchronization signal block sequence number information is used to indicate the sequence number of the first synchronization signal block actually transmitted.
The method according to claim 1, wherein said synchronization signal block indication message is a synchronization signal block index, said synchronization signal block index and the number of actually transmitted synchronization signal blocks and the first synchronization signal actually transmitted. There is a correspondence between the serial numbers of the blocks.
The method according to any one of claims 1-3, wherein the number of the actually transmitted sync signal blocks belongs to a preset set of values.
The method according to any one of claims 1 to 4, wherein the synchronization signal block indication message is one of the following signaling: physical layer signaling, media access control MAC layer signaling, and radio resource control RRC layer Signaling.
A synchronization signal block determining method, characterized in that the method comprises:

Receiving, by the terminal device, a synchronization signal block indication message, the synchronization signal block indication message is used to indicate the number of the actually transmitted synchronization signal blocks and the sequence number of the first synchronization signal block actually sent, wherein the actually transmitted synchronization signal block The serial number is continuous;

The terminal device determines, according to the synchronization signal block indication message, the number of synchronization signal blocks actually transmitted and the sequence number of the first synchronization signal block actually transmitted.
The method according to claim 6, wherein the synchronization signal block indication message comprises synchronization signal block quantity information and synchronization signal block sequence number information;

Determining, according to the synchronization signal block indication message, the number of synchronization signal blocks actually transmitted and the sequence number of the first synchronization signal block actually transmitted include:

Determining the number of actually transmitted synchronization signal blocks according to the synchronization signal block quantity information, and determining the sequence number of the first synchronization signal block actually transmitted according to the sequence number information of the synchronization signal block.
The method according to claim 6, wherein said synchronization signal block indication message is a synchronization signal block index, said synchronization signal block index and the number of actually transmitted synchronization signal blocks and the first synchronization signal actually transmitted. There is a corresponding relationship between the serial numbers of the blocks;

Determining, according to the synchronization signal block indication message, the number of synchronization signal blocks actually transmitted and the sequence number of the first synchronization signal block actually transmitted include:

And determining, according to the synchronization signal block index, the number of synchronization signal blocks actually transmitted and the sequence number of the first synchronization signal block actually transmitted.
The method according to any one of claims 6-8, wherein the number of the actually transmitted sync signal blocks belongs to a preset set of values.
The method according to any one of claims 6-9, wherein the synchronization signal block indication message is one of the following signaling: physical layer signaling, media access control MAC layer signaling, and radio resource control RRC layer Signaling.
A network device, where the network device includes:

a processor, configured to generate a synchronization signal block indication message, where the synchronization signal block indication message is used to indicate the number of synchronization signal blocks actually transmitted and the sequence number of the first synchronization signal block actually sent, where the actually transmitted The sequence number of the sync signal block is continuous;

And a transmitter, configured to send the synchronization signal block indication message.
The network device according to claim 11, wherein the synchronization signal block indication message comprises synchronization signal block number information and synchronization signal block number information, and the synchronization signal block quantity information is used to indicate an actually transmitted synchronization signal block. The number of synchronization signal block sequence numbers is used to indicate the sequence number of the first synchronization signal block actually transmitted.
The network device according to claim 11, wherein said synchronization signal block indication message is a synchronization signal block index, said synchronization signal block index and the number of actually transmitted synchronization signal blocks and the first synchronization actually transmitted There is a correspondence between the sequence numbers of the signal blocks.
The network device according to any one of claims 11 to 13, wherein the number of the actually transmitted synchronization signal blocks belongs to a preset value set.
The network device according to any one of claims 11 to 14, wherein the synchronization signal block indication message is one of the following signaling: physical layer signaling, media access control MAC layer signaling, and radio resource control RRC Layer signaling.
A terminal device, the terminal device includes:

a receiver, configured to receive a synchronization signal block indication message, where the synchronization signal block indication message is used to indicate the number of synchronization signal blocks actually transmitted and the sequence number of the first synchronization signal block actually sent, where the actually transmitted The sequence number of the sync signal block is continuous;

And a processor, configured to determine, according to the synchronization signal block indication message, the number of synchronization signal blocks actually transmitted and the sequence number of the first synchronization signal block actually transmitted.
The terminal device according to claim 16, wherein the synchronization signal block indication message comprises synchronization signal block quantity information and synchronization signal block sequence number information;

The processor is specifically configured to determine, according to the synchronization signal block quantity information, the number of synchronization signal blocks that are actually sent, and determine the sequence number of the first synchronization signal block that is actually sent according to the synchronization signal block sequence number information.
The terminal device according to claim 16, wherein said synchronization signal block indication message is a synchronization signal block index, said synchronization signal block index and the number of actually transmitted synchronization signal blocks and the first synchronization actually transmitted There is a corresponding relationship between the sequence numbers of the signal blocks;

The processor is specifically configured to determine, according to the synchronization signal block index, the number of synchronization signal blocks actually transmitted and the sequence number of the first synchronization signal block actually transmitted.
The terminal device according to any one of claims 16 to 18, wherein the number of the actually transmitted synchronization signal blocks belongs to a preset value set.
The terminal device according to any one of claims 16 to 19, wherein the synchronization signal block indication message is one of the following signaling: physical layer signaling, media access control MAC layer signaling, and radio resource control RRC Layer signaling.
A communication system, comprising: the network device according to any one of claims 11 to 15; and the terminal device according to any one of claims 16 to 20.
A computer readable storage medium, wherein the computer readable storage medium stores instructions that, when run on a computer, cause the computer to perform the method of any of claims 1-5.
A computer readable storage medium, wherein the computer readable storage medium stores instructions that, when run on a computer, cause the computer to perform the method of any one of claims 6-10.