Precoding instruction method and apparatus for supporting 8Tx codebook-based PUSCH transmission

Abstract

An embodiment of the present application discloses a precoding indication method and apparatus for supporting PUSCH transmission based on an 8-Tx codebook, which is applicable to communication systems such as a 5G new radio (NR) system or other future new mobile communication systems. The method includes: determining an SRS resource set having the same function as at least one "codebook" for a terminal device, where the plurality of SRS resources constitute an SRS resource group corresponding to eight SRS antenna ports for uplink channel sounding; and transmitting an SRS resource indication (SRI) to the terminal device. By implementing the embodiments of the present application, the network side device determines at least one sounding reference signal (SRS) resource set having the same function as a "codebook", and instructs the terminal device through the SRI an SRS resource group corresponding to eight SRS antenna ports for PUSCH transmission, so as to support PUSCH transmission based on the codebook in the case of eight SRS ports, thereby using the SRS resources defined by the existing protocol to support transmission based on the 8Tx codebook, avoiding the need to redefine the 8-port SRS resources, and realizing more flexible SRS resource utilization.

Description

[Technical Field]

[0001] This application relates to the field of communication technology, in particular to 8Tx Noko The present invention relates to a method and apparatus for indicating precoding to support a Physical Uplink Shared Channel (PUSCH) transmission based on a handbook. [Background technology]

[0002] In wireless communications, the non-codebook uplink transmission solution is a spatial multiplexing technology. The difference between non-codebook-based uplink transmission and codebook-based uplink transmission is that the precoding of non-codebook-based uplink transmission is obtained based on a specific standard, rather than determining precoding from a limited number of candidate values ​​based on a fixed codebook. Compared with the codebook-based transmission solution, this can save the overhead of precoding instructions and achieve better performance.

[0003] The more layers for uplink transmission configured for a terminal device, the faster the uplink transmission speed. The number of layers for non-codebook uplink transmission supported by current protocols is small, making it difficult to achieve a higher uplink transmission speed. Summary of the Invention

[0004] An embodiment of the present application provides a precoding instruction method and apparatus for supporting PUSCH transmission based on an 8Tx codebook, which is applicable to communication systems such as a long term evolution (LTE) system, a fifth generation (5G) mobile communication system, a 5G new radio (NR) system, or other future new mobile communication systems. A network side device determines at least one sounding reference signal (SRS) resource set having the same function as a "codebook," and instructs a terminal device through the SRS to use an SRS resource group including multiple SRS resources for PUSCH transmission to support PUSCH transmission based on the codebook in the case of eight SRS ports. By realizing the 8-port SRS function using existing SRS resource combinations, it is not necessary to define a new 8-port SRI mapping table, thereby reducing the difficulty and workload of standardization and improving the uplink transmission speed.

[0005] According to a first aspect, an embodiment of the present application provides a precoding indication method for supporting PUSCH transmission based on an 8Tx codebook, the method comprising: determining at least one sounding reference signal (SRS) resource set having a function called a "codebook" for a terminal device, where each SRS resource set includes a plurality of SRS resources, and the plurality of SRS resources constitute an SRS resource group corresponding to eight SRS antenna ports for uplink channel sounding; and transmitting an SRS resource indication (SRI) to the terminal device, wherein the SRI indicates a spatial filtration beam to be used for one SRS resource set for PUSCH transmission among the at least one SRS resource set.

[0006] Optionally, the method further includes: obtaining capability information of the terminal device transmitted from the terminal device, wherein determining the at least one SRS resource set based on the capability information of the terminal device.

[0007] Optionally, the capability information of the terminal device includes fully coherent, partially coherent, or non-coherent.

[0008] Optionally, the plurality of SRS resources include: a single-port SRS resource; Two-port SRS resource and a 4-port SRS resource; and

[0009] Optionally, the plurality of SRS resources S , which may include a combination of SRS resources with the same number of ports, or may include a combination of SRS resources with different numbers of ports.

[0010] Optionally, the plurality of SRS resources include: A combination consisting of two 4-port SRS resources and a combination consisting of one 4-port SRS resource and two 2-port SRS resources; A combination consisting of four two-port SRS resources, and a combination consisting of eight single-port SRS resources;

[0011] Optionally, sending an SRI table to the terminal device, where the SRI table includes a correspondence between an SRI and the SRS resource set, and the number of bits of an SRI indication field of the SRI is N. SRS where N SRS is the number of SRS resource sets configured corresponding to the terminal device.

[0012] Selectively, transmitting bitmap information to the terminal device, wherein each bit in the bitmap information and each of the configured SRS resource sets have a predefined correspondence relationship, and the SRI indicates one SRS resource set selected by a precoding instruction in the predefined correspondence relationship, wherein the SRS resource set is selected when the terminal device transmits a PUSCH; corresponds to The method further includes a step used to indicate the use of a spatial filtration beam.

[0013] Optionally, SRI The number of bits in the SRI indication field is N SRS where N SRS is the number of SRS resource sets configured corresponding to the terminal device.

[0014] Optionally, the plurality of SRS reference signal sets include: a periodic SRS resource set; A semi-persistent SRS resource set, aperiodic SRS resource set, or

[0015] According to a second aspect, an embodiment of the present application provides a precoding indication method for supporting PUSCH transmission based on another 8Tx codebook, the method comprising: receiving an SRS resource indication (SRI) sent from a network side device, where the SRI includes indicating a spatial filtration beam to be used for one SRS resource set for PUSCH transmission among at least one SRS resource set;

[0016] Optionally, the method further includes sending capability information of the terminal device to the network side device, where the capability information of the terminal device is used to determine the at least one SRS resource set.

[0017] Optionally, the capability information of the terminal device includes fully coherent, partially coherent, or non-coherent.

[0018] Optionally, receiving an SRI table sent from the network side device, where the SRI table includes a correspondence between an SRI and the SRS resource set, and the number of bits of an SRI indication field of the SRI is N. SRS where N SRS is the number of SRS resource sets configured corresponding to the terminal device.

[0019] Optionally, receiving bitmap information transmitted from the network side device, wherein each bit in the bitmap information and each configured SRS resource set have a predefined correspondence relationship, and the SRI indicates one SRS resource set selected by a precoding instruction in the predefined correspondence relationship, wherein the SRS resource set is selected when the terminal device transmits a PUSCH. corresponds to The method further includes a step used to indicate the use of a spatial filtration beam.

[0020] Optionally, SRI The number of bits in the SRI indication field is N SRS where N SRS is the number of SRS resource sets configured corresponding to the terminal device.

[0021] Optionally, the plurality of SRS reference signal sets include: a periodic SRS resource set; A semi-persistent SRS resource set, aperiodic SRS resource set, or

[0022] According to a third aspect, an embodiment of the present application provides a communication device, the communication device comprising: Network sideThe functions may be implemented in part or all of the devices. For example, the functions of a communication device may include the functions of some or all of the embodiments of the present application, or may include the function of implementing any one of the embodiments of the present application alone. The functions may be implemented by hardware, or may be implemented by executing corresponding software via the hardware. The hardware or software may include one or more units or modules corresponding to the functions.

[0023] In one implementation, the structure of the communication device can include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform the corresponding functions of the above method. The transceiver module is used to support communication between the communication device and other devices. The communication device may further include a storage module, which is used to combine with the transceiver module and the processing module and stores computer programs and data required for the communication device.

[0024] As an example, the processing module may be a processor, the transceiver module may be a transceiver or a communication interface, and the storage module may be a memory. a processing module for determining at least one sounding reference signal (SRS) resource set having a function referred to as a "codebook" for a terminal device, wherein each of the SRS resource sets includes a plurality of SRS resources, the plurality of SRS resources constituting an SRS resource group corresponding to eight SRS antenna ports for uplink channel sounding; and a first transceiver module for transmitting an SRS resource indication (SRI) to the terminal device, wherein the SRI indicates a spatial filtration beam to be used for one SRS resource set for PUSCH transmission among the at least one SRS resource set.

[0025] According to a fourth aspect, an embodiment of the present application provides another communication device, the communication device comprising: Terminal The functions may be implemented in part or all of the devices. For example, the functions of a communication device may include the functions of some or all of the embodiments of the present application, or may include the function of implementing any one of the embodiments of the present application alone. The functions may be implemented by hardware, or may be implemented by executing corresponding software via the hardware. The hardware or software may include one or more units or modules corresponding to the functions.

[0026] In one implementation, the structure of the communication device can include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform the corresponding functions of the above method. The transceiver module is used to support communication between the communication device and other devices. The communication device can further include a storage module, which is used to combine with the transceiver module and the processing module and stores computer programs and data required for the communication device.

[0027] As an example, the processing module may be a processor, the transceiver module may be a transceiver or a communication interface, and the storage module may be a memory. a second transceiver module for receiving an SRS resource indication (SRI) transmitted from a network side device, wherein the SRI includes a second transceiver module indicating a spatial filtration beam to be used for one SRS resource set for PUSCH transmission among the at least one SRS resource set.

[0028] According to a fifth aspect, an embodiment of the present application provides a communication device, the communication device including a processor, the processor executing the method according to the first aspect when calling a computer program in a memory.

[0029] According to a sixth aspect, an embodiment of the present application provides a communication device, the communication device including a processor, the processor executing the method according to the second aspect when calling a computer program in a memory.

[0030] According to a seventh aspect, an embodiment of the present application provides a communication device, the communication device including a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory to cause the communication device to perform the method according to the first aspect.

[0031] According to an eighth aspect, an embodiment of the present application provides a communication device, the communication device including a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory to cause the communication device to perform the method according to the second aspect.

[0032] According to a ninth aspect, an embodiment of the present application provides a communications device, the device comprising a processor and an interface circuit, the interface circuit being used to receive and transmit code instructions to the processor, the processor being used to execute the code instructions such that the device performs the method according to the first aspect above.

[0033] According to a tenth aspect, an embodiment of the present application provides a communications device, the device comprising a processor and an interface circuit, the interface circuit being used to receive and transmit code instructions to the processor, the processor being used to execute the code instructions such that the device performs the method according to the second aspect above.

[0034] According to an eleventh aspect, an embodiment of the present application provides a precoding instruction system supporting Physical Uplink Shared Channel (PUSCH) transmission based on an 8Tx codebook, the system including a communication device according to the third aspect and a communication device according to the fourth aspect, or the system including a communication device according to the fifth aspect and a communication device according to the sixth aspect, or the system including a communication device according to the seventh aspect and a communication device according to the eighth aspect, or the system including a communication device according to the ninth aspect and a communication device according to the tenth aspect.

[0035] According to a twelfth aspect, an embodiment of the present invention comprises the steps of: Network side a computer-readable storage medium for storing instructions for use by a device, the instructions, when executed, Network side The device is caused to carry out the method according to the first aspect.

[0036] According to a thirteenth aspect, an embodiment of the present invention comprises: Terminal providing a readable storage medium for storing instructions for use by a device, the instructions, when executed, Terminal The device is caused to carry out the method according to the second aspect.

[0037] According to a fourteenth aspect, the present application provides a computer program product comprising a computer program which, when run on a computer, causes the computer to carry out the method according to the first aspect above.

[0038] According to a fifteenth aspect, the present application provides a computer program product comprising a computer program which, when run on a computer, causes the computer to carry out the method according to the second aspect above.

[0039] According to a sixteenth aspect, the present application provides a chip system, the chip system including at least one processor and an interface, configured to perform the functions according to the first aspect, for example to determine or process at least one of the data and information according to the method. Network sideIn one possible design, the chip system further includes a memory, the memory being configured to: Network side It is used to store computer programs and data required for the device. The chip system may be composed of chips or may include chips and other discrete elements.

[0040] According to a seventeenth aspect, the present application provides a chip system, the chip system including at least one processor and an interface, configured to perform the functions according to the second aspect, for example to determine or process at least one of the data and information according to the method. Terminal In one possible design, the chip system further includes a memory, the memory being configured to: Terminal It is used to store computer programs and data required for the device. The chip system may be composed of chips or may include chips and other discrete elements.

[0041] According to an eighteenth aspect, the present application provides a computer program which, when run on a computer, causes the computer to carry out the method according to the first aspect above.

[0042] According to a nineteenth aspect, the present application provides a computer program which, when run on a computer, causes the computer to carry out the method according to the second aspect above. [Brief explanation of the drawings]

[0043] In order to more clearly describe the technical solutions in the embodiments or background art of the present application, the following describes the drawings that need to be used in the embodiments or background art of the present application. [Figure 1] 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application; [Figure 2] 1 is a schematic flowchart of a precoding indication method for supporting PUSCH transmission based on an 8Tx codebook provided by an embodiment of the present application; [Figure 3] 1 is a schematic flowchart of a precoding indication method for supporting PUSCH transmission based on an 8Tx codebook provided by an embodiment of the present application; [Figure 4] 1 is a schematic flowchart of a precoding indication method for supporting PUSCH transmission based on an 8Tx codebook provided by an embodiment of the present application; [Figure 5] 1 is a schematic flowchart of a precoding indication method for supporting PUSCH transmission based on an 8Tx codebook provided by an embodiment of the present application; [Figure 6] 1 is a schematic flowchart of a precoding indication method for supporting PUSCH transmission based on an 8Tx codebook provided by an embodiment of the present application; [Figure 7] 1 is a schematic flowchart of a precoding indication method for supporting PUSCH transmission based on an 8Tx codebook provided by an embodiment of the present application; [Figure 8] 1 is a schematic flowchart of a precoding indication method for supporting PUSCH transmission based on an 8Tx codebook provided by an embodiment of the present application; [Figure 9] 1 is a schematic flowchart of a precoding indication method for supporting PUSCH transmission based on an 8Tx codebook provided by an embodiment of the present application; [Figure 10] 1 is a schematic configuration diagram of a communication device provided by an embodiment of the present application; [Figure 11] FIG. 1 is a schematic diagram of another communication device provided by an embodiment of the present application. [Figure 12] 1 is a schematic diagram of a chip provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0044] To facilitate understanding, first, terms used in this application will be explained.

[0045] Sounding Reference Signal (SRS)

[0046] The reference signal (RS) includes a channel state information reference signal (CSI-RS), a sounding reference signal (SRS), a positioning reference signal (PRS), a tracking reference signal (TRS), etc., and the SRS includes an SRS with a "codebook" or "non-codebook" function, or an SRS with an "antenna switching" function.

[0047] In a wireless communication network, an evolved Node B (eNodeB) typically allocates a portion of the system bandwidth to a specific user equipment (UE), i.e., allocates specific frequency domain resources to the UE at a specific time. The eNodeB knows high-quality areas within a specific frequency domain through the SRS and allocates them to the UE first to ensure the UE's quality of service. The SRS is used to provide a reference to the scheduling resources of the eNodeB.

[0048] To better understand the precoding instruction method for supporting PUSCH transmission based on an 8Tx codebook disclosed in the embodiment of the present application, the following first describes a communication system to which the embodiment of the present application is applied.

[0049] Referring to Figure 1, Figure 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application. The communication system may include, but is not limited to, one network device and one terminal device. The number and form of devices shown in Figure 1 are exemplary and do not limit the embodiment of the present application. In actual applications, the communication system may include two or more network devices and two or more terminal devices. For example, the communication system shown in Figure 1 includes one network device 101 and one terminal device 102.

[0050] It should be noted that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as a long term evolution (LTE) system, a fifth generation (5G) mobile communication system, a 5G new radio (NR) system, or other future new mobile communication systems. It should be noted that the sidelink in the embodiments of the present application may also be referred to as a side link or a direct connection link.

[0051] The network device 101 in the embodiments of the present application is a network-side entity for transmitting and receiving signals. For example, the network device 101 may be an evolved base station (eNB), a transmission reception point (TRP), a next generation base station (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system. The embodiments of the present application do not limit the specific technology and specific device form used by the network device. The network device 101 provided in the embodiments of the present application may be composed of a central unit (CU) and distributed units (DUs), where the CU may also be referred to as a control unit. The CU-DU structure may be used to separate protocol layers of a network device, for example, a base station, with some protocol layer functions centrally controlled in the CU and some or all of the remaining protocol layer functions distributed to the DUs, and the DUs centrally controlled by the CU.

[0052] The terminal device 102 in the embodiment of the present application is a user-side entity for transmitting and receiving signals, such as a mobile phone. The terminal device may also be called a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), etc. The terminal device may be an automobile with a communication function, a smart car, a mobile phone, a wearable device, a tablet, a computer with a wireless transmission and reception function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, etc. The embodiments of the present application are not limited to the specific technology used by the terminal device 12 or the specific device configuration.

[0053] In wireless communications, multi-antenna precoding of a physical uplink shared channel (PUSCH) supports two different mode configurations: codebook-based transmission and non-codebook-based transmission. In codebook-based PUSCH transmission in NR, a terminal needs to configure at most one SRS resource set for codebook-based uplink transmission. Multiple SRS resources can be configured in an SRS resource set. The network side indicates an SRS resource indication signal (SRI) corresponding to the SRS resource set to the terminal, and instructs the terminal to select an SRS resource through the SRI. Similarly, based on uplink CSI measurement by the base station, the network determines a precoding matrix (TPMI) and a transmission layer number (RI) that the terminal will use for actual transmission, and notifies the terminal of the results. Data transmitted by the terminal on the uplink needs to be precoded using the PMI and RI specified by the network side. The precoded data is mapped to a corresponding antenna port according to a spatial filter (SpatialRelationInfo) corresponding to the SRS resource indicated by the SRI. Since different SRSs correspond to different spatial filters, the precoded data of the terminal must be filtered by the spatial filter used by the SRS indicated by the SRI. In this way, uplink data transmission from a single layer to full rank can be supported, and the current version of the NR system can support uplink data transmission of up to four layers.

[0054] [Table 1]

[0055] [Table 2]

[0056] [Table 3]

[0057] Table 1, Table 2 and Table 3 are used to provide examples of an SRI table, where the SRI table includes a correspondence between an SRI index and an SRS resource in the SRS resource set, and the number of bits in the SRI indication field of the SRI is N SRS It is decided by N SRS is the number of SRS resources configured corresponding to the terminal device.

[0058] [Table 4]

[0059] Table 4 shows an example of four antenna ports, providing a signaling indication method for the Transmitted Precoding Matrix Indicator (TPMI) for single-layer transmission and the number of transmission layers RI, which are indicated based on different terminal device capabilities. Here, terminal device capabilities are classified into three types: fully coherent, partially coherent, and non-coherent, which represent the correlation capabilities of the antenna ports.

[0060] [Table 5]

[0061] Table 5 shows the codeword, precoding information TPMI, and number of transmission layers (RI) used for single-layer transmission using four antenna ports. This table applies to the case where a cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) waveform is used, and the case where DFTs-OFDM precoding is not used and the number of transmission layers RI is 1. In this table, W represents a matrix, sorted from left to right in increasing order of TPMI index, j in the matrix is ​​a negative number, and 1 / 2 located before each matrix represents the normalization coefficient of the matrix.

[0062] The number of transmission layers is equal to the rank of the channel matrix, i.e., the number of data streams that can be transmitted independently in parallel. The number of layers is indicated by the rank RI, which indicates the maximum number of uplink PUSCH transmission layers that the terminal device can support on the network side. The supported RI is limited by the number of transmit antennas. If the transmit antennas are up to two antennas, the maximum rank is 2.

[0063] Since not all terminals can calibrate each antenna port for coherent transmission, the codebook design for uplink transmission needs to consider the antenna coherent transmission capability of the terminal.

[0064] It should be noted that the communication systems described in the embodiments of the present application are intended to more clearly explain the technical solutions of the embodiments of the present application, and are not intended to limit the technical solutions provided by the embodiments of the present application. Those skilled in the art will recognize that with the evolution of system architecture and the emergence of new service scenarios, the technical solutions provided by the embodiments of the present application can be similarly applied to similar technical issues.

[0065] Hereinafter, a precoding instruction method and apparatus for supporting PUSCH transmission based on an 8Tx codebook provided by the present application will be described in detail in conjunction with the accompanying drawings.

[0066] Referring to Figure 2, Figure 2 is a schematic flowchart of a precoding instruction method for supporting PUSCH transmission based on an 8Tx codebook provided by an embodiment of the present application. The method is performed by a network side device. As shown in Figure 2, the method may include, but is not limited to, the following steps:

[0067] Step S201: Determine at least one sounding reference signal (SRS) resource set having a function called a "codebook" for a terminal device, where each of the SRS resource sets includes a plurality of SRS resources, and the plurality of SRS resources constitute an SRS resource group corresponding to eight SRS antenna ports for uplink channel sounding.

[0068] In an embodiment of the present application, the PUSCH transmission performed by the terminal device is an uplink transmission based on a codebook, and the network side device configures multiple SRS resources for the terminal and allows the terminal device to select one. The terminal transmits a corresponding SRS based on the SRS resource configuration information transmitted from the network side device. The network side device transmits SRI, TPMI, and Transmitted Rank Indication (TRI) information to the terminal device based on the received SRS. Based on the SRI, the terminal determines the SRS resource selected by the base station, and can thereby determine to use the same antenna and antenna port as the SRS transmission corresponding to the SRS resource, i.e., the corresponding spatial filtration beam (analog beam), in uplink transmission. Through the TPMI and TRI information of the SRS resource corresponding to the SRI, the terminal can further determine the precoding and number of transmission layers used for uplink PUSCH transmission.

[0069] To support eight-layer PUSCH transmission based on a codebook, the network side device determines at least one sounding reference signal (SRS) resource set for the terminal device, which has the same function as a "codebook." With this configuration, when the terminal device selects resources for PUSCH transmission, it can select from multiple SRS resource groups corresponding to eight ports, with different SRS resource groups corresponding to different spatial filtration beams transmitted from the terminal. Different SR resource groups can be configured with different resource types, where each SRS resource group corresponds to an SRS resource set, and the SRS resources included in the group have the same type, which may be periodic, semi-persistent, or aperiodic SRS resources to accommodate different base station scheduling requirements.

[0070] Step S202: Send an SRS resource indication (SRI) to the terminal device, where the SRI indicates a spatial filtration beam to be used for one SRS resource set for PUSCH transmission among the at least one SRS resource set.

[0071] In an embodiment of the present application, in codebook-based PUSCH transmission, the network side device needs to configure multiple SRS resource sets for codebook-based uplink transmission, and multiple SRS resources can be configured in each SRS resource set. The network side device then feeds back an SRI to the terminal device and indicates the selected SRS resource set through the SRI. Data transmitted by the terminal in the uplink needs to be precoded using the PMI and RI specified by the network side, and the precoded data is mapped to the corresponding antenna port according to the spatial filter SpatialRelationInfo corresponding to the SRS resource set indicated by the SRI. Because different SRS resource sets are transmitted using different spatial filters, the precoded data of the terminal needs to be filtered by the spatial filter used by the SRS resource set indicated by the SRI.

[0072] By implementing the embodiments of the present application, a network side device determines at least one sounding reference signal (SRS) resource set having the same function as a "codebook," and instructs a terminal device through the SRI an SRS resource group including multiple SRS resources for PUSCH transmission, to support PUSCH transmission based on the codebook in the case of eight SRS ports. By realizing the eight-port SRS function using the existing SRS resource combination, there is no need to define a new eight-port SRI mapping table, and the difficulty and workload of standardization are reduced.

[0073] Referring to Figure 3, Figure 3 is a schematic flowchart of a precoding instruction method for supporting PUSCH transmission based on an 8Tx codebook provided by an embodiment of the present application. The method is performed by a network side device. As shown in Figure 3, the method may include, but is not limited to, the following steps:

[0074] Step S301: Obtain capability information of the terminal device sent from the terminal device, where the at least one SRS resource set is determined based on the capability information of the terminal device.

[0075] In the embodiment of the present application, the terminal device reports the capability information of the terminal device to the network side device, so that the network side device can refer to it, and configure the SRS resource set that matches the terminal device capability information in the terminal device.

[0076] Optionally, the capability information of the terminal device is a capability of the antenna of the terminal device to perform coherent transmission, including fully coherent, partially coherent, or non-coherent.

[0077] In the embodiment of the present application, the three types of antenna coherent transmission capabilities of the terminal device are defined as follows: Full Coherent: All antennas of a terminal can perform coherent transmission. Partial coherent: Antennas within the same coherent transmission pair of a terminal can perform coherent transmission, but coherent transmission cannot be performed between the coherent transmission pair. Non-coherent: The terminal does not have an antenna capable of performing coherent transmission.

[0078] Optionally, the plurality of SRS resources include: a single-port SRS resource; Two-port SRS resource and a 4-port SRS resource; and

[0079] In the embodiment of the present application, the existing SRS resource definition includes the above three port numbers, and SRS resources with different port numbers are combined to form an 8-port SRS resource to support PUSCH transmission based on the 8-Tx codebook of the terminal, eliminating the need to redefine the 8-port SRS and allowing for more flexible configuration of the SRS resource.

[0080] Optionally, the plurality of SRS resources include: A combination consisting of two 4-port SRS resources and a combination consisting of one 4-port SRS resource and two 2-port SRS resources; A combination consisting of four two-port SRS resources, and a combination consisting of eight single-port SRS resources;

[0081] In the embodiment of the present application, the SRS resource combinations that can configure an 8-port SRS include the following combinations 1 to 4. Combination 1: one 4-port SRS resource + one 4-port SRS resource; Combination 2: one 4-port SRS resource + one 2-port SRS resource + one 2-port SRS resource; Combination 3: 1 2-port SRS resource + 1 2-port SRS resource + 1 2-port SRS resource + 1 2-port SRS resource; Combination 4: A combination of eight single-port SRS resources.

[0082] With the above combinations, an 8-port SRS can be configured using existing SRS resource type combinations.

[0083] In one possible embodiment, if the antennas of the terminal device are fully coherent, any SRS resource combination can be configured.

[0084] In one possible embodiment, if the antennas of the terminal device are not all perfectly coherent, there are two cases: If one coherent antenna group is configured for every four antennas out of eight antennas, and there is non-coherence between the antennas in two groups, this corresponds to a partially coherent antenna configuration. In this case, two 4-port SRS resources tend to be configured to configure one 8-port SRS resource group. Similarly, if two antennas form a coherent antenna group, four antenna groups are non-coherent, and antennas within each antenna group are coherent, this also corresponds to a partially coherent antenna configuration. In this case, four 2-port SRS resources can be configured to form one 8-port SRS resource group.

[0085] Referring to Figure 4, Figure 4 is a schematic flowchart of a precoding instruction method for supporting PUSCH transmission based on an 8Tx codebook provided by an embodiment of the present application. The method is performed by a network side device. As shown in Figure 4, the method may include, but is not limited to, the following steps:

[0086] Step S401: Send an SRI table to the terminal device, where the SRI table includes a correspondence relationship between the SRI and the SRS resource set, and the number of bits of the SRI indication field of the SRI is N SRS where N SRS is the number of SRS resource sets configured corresponding to the terminal device.

[0087] In the embodiment of the present application, when the network side device indicates through the SRI, it can directly indicate the index of the corresponding setting in the SRI table, and the terminal refers to the table to obtain the indicated SRS resource set.

[0088] In one possible embodiment, the network side device configures two SRS resource sets for the terminal device, namely, N SRS = 2, where the type of SRS resource combination in the first SRS resource set is combination 1 including two 4-port SRS resources, and the type of SRS resource combination in the second SRS resource set is combination 2 including one 4-port SRS resource and two 2-port SRS resources. In this case, the network side device needs to use two SRIs to configure these two SRS resource sets in the terminal device, and the number of bits of the SRI indication field corresponding to the SRIs is N. SRS Therefore, the terminal device determines the N SRS = 2, i.e., the above-mentioned Table 1. The SRI table is a predefined table that includes the correspondence between the SRI index and the SRS resource in the SRS resource set. In this embodiment, when the SRI index is 0, it corresponds to the SRS resource group set in the first SRS resource set, and when the SRI index is 1, it corresponds to the SRS resource group set in the second SRS resource set.

[0089] Referring to Figure 5, Figure 5 is a schematic flowchart of a precoding instruction method for supporting PUSCH transmission based on an 8Tx codebook provided by an embodiment of the present application. The method is performed by a network side device. As shown in Figure 5, the method may include, but is not limited to, the following steps:

[0090] Step S501: Send bitmap information to the terminal device, where each bit in the bitmap information and each configured SRS resource set have a predefined correspondence relationship, and the SRI indicates one SRS resource set selected by a precoding instruction in the predefined correspondence relationship, where the SRS resource set is selected when the terminal device transmits a PUSCH. corresponds toUsed to indicate the use of a spatially filtered beam.

[0091] Optionally, SRI The number of bits in the SRI indication field is N SRS where N SRS is the number of SRS resource sets configured corresponding to the terminal device.

[0092] Optionally, the plurality of SRS reference signal sets include: a periodic SRS resource set; A semi-persistent SRS resource set, aperiodic SRS resource set, or

[0093] In one possible embodiment, the network side device configures three SRS resource sets for the terminal device, namely, N SRS = 3, where the type of SRS resource combination in the first SRS resource set is combination 1 including two 4-port SRS resources, the type of SRS resource combination in the second SRS resource set is combination 2 including one 4-port SRS resource and two 2-port SRS resources, and the type of SRS resource combination in the third SRS resource set is combination 3 including four 2-port SRS resources. In this case, the network side device needs to use three SRIs to configure these two SRS resource sets in the terminal device, and the number of bits of the SRI indication field corresponding to the SRIs is determined by the NSRS, so the terminal device can configure N according to these three SRIs. SRS= 3, i.e., the above-mentioned Table 2. The SRI table is a predefined table that includes a correspondence between the SRI index and the SRS resource in the SRS resource set, and in this embodiment, when the SRI index is 0, it corresponds to the SRS resource group configured in the first SRS resource set, when the SRI index is 1, it corresponds to the SRS resource group configured in the second SRS resource set, and when the SRI index is 2, it corresponds to the SRS resource group configured in the third SRS resource set.

[0094] In one possible embodiment, the network side device configures two SRS resource sets for the terminal device, namely, N SRS= 2, where the type of SRS resource combination in the first SRS resource set is Combination 3, which includes four two-port SRS resources, and the type of SRS resource combination in the second SRS resource set is Combination 4, which includes eight single-port SRS resources. In this case, the network side device needs to configure these two SRS resource sets in the terminal device using two SRIs, and the network side device numbers the first SRS resource set and the second SRS resource set, respectively, and the numbers are the bitmap information. After receiving the bitmap information, the terminal device searches for the corresponding TPMI and RI from a pre-configured table based on the coherent transmission capability of its antenna and the bitmap information. If the terminal device has four antenna ports and the number of transmission layers is 1, the table is Table 4 above, which shows the TPMI and RI corresponding to a terminal device with four antenna ports. If all the antennas of the terminal device can perform coherent transmission, i.e., the antennas are fully coherent, and the bitmap information assigned to the terminal device for the first SRS resource set is 0, the corresponding TPMI in Table 4 is 0, and each SRS resource in the first SRS resource set configured for the terminal device by the network side device can be obtained by searching the SRS resource corresponding to TPMI=0 in the corresponding codebook for four-antenna single-layer transmission (i.e., Table 5 above).

[0095] Referring to Figure 6, Figure 6 is a schematic flowchart of a precoding instruction method for supporting PUSCH transmission based on an 8Tx codebook provided by an embodiment of the present application. The method is performed by a terminal device. As shown in Figure 6, the method may include, but is not limited to, the following steps:

[0096] Step S601: Receive an SRS resource indication (SRI) sent from a network side device, where the SRI indicates a spatial filtration beam to be used for one SRS resource set for PUSCH transmission among the at least one SRS resource set.

[0097] In an embodiment of the present application, in codebook-based PUSCH transmission, the network side device needs to configure multiple SRS resource sets for codebook-based uplink transmission, and multiple SRS resources can be configured in each SRS resource set. The network side device then feeds back an SRI to the terminal device and indicates the selected SRS resource set through the SRI. Data transmitted by the terminal in the uplink needs to be precoded using the PMI and RI specified by the network side, and the precoded data is mapped to the corresponding antenna port according to the spatial filter corresponding to the SRS resource set indicated by the SRI. Because different SRS resource sets are transmitted using different spatial filters, the precoded data of the terminal needs to be filtered by the spatial filter used by the SRS resource set indicated by the SRI.

[0098] By implementing the embodiments of the present application, a network side device determines at least one sounding reference signal (SRS) resource set having the same function as a "codebook," and instructs a terminal device through the SRI an SRS resource group including multiple SRS resources for PUSCH transmission, to support PUSCH transmission based on the codebook in the case of eight SRS ports. By realizing the eight-port SRS function using the existing SRS resource combination, there is no need to define a new eight-port SRI mapping table, and the difficulty and workload of standardization are reduced.

[0099] 7, which is a schematic flowchart of a precoding instruction method for supporting PUSCH transmission based on an 8Tx codebook provided by an embodiment of the present application. The method is performed by a terminal device. As shown in FIG. 7, the method may include, but is not limited to, the following steps:

[0100] Step S701: Send capability information of the terminal device to the network side device, where the capability information of the terminal device is used to determine the at least one SRS resource set.

[0101] In the embodiment of the present application, the terminal device reports the capability information of the terminal device to the network side device, so that the network side device can refer to it, and configure the SRS resource set that matches the terminal device capability information in the terminal device.

[0102] Optionally, the capability information of the terminal device includes fully coherent, partially coherent, or non-coherent.

[0103] 8, which is a schematic flowchart of a precoding instruction method for supporting PUSCH transmission based on an 8Tx codebook provided by an embodiment of the present application. The method is performed by a terminal device. As shown in FIG. 3, the method may include, but is not limited to, the following steps:

[0104] Step S801: Receive an SRI table sent from the network side device, where the SRI table includes a correspondence relationship between the SRI and the SRS resource set, and the number of bits of the SRI indication field of the SRI is N SRS where N SRS is the number of SRS resource sets configured corresponding to the terminal device.

[0105] In the embodiment of the present application, when the network side device indicates through the SRI, it can directly indicate the index of the corresponding setting in the SRI table, and the terminal refers to the table to obtain the indicated SRS resource set.

[0106] Referring to Figure 9, Figure 9 is a schematic flowchart of a precoding instruction method for supporting PUSCH transmission based on an 8Tx codebook provided by an embodiment of the present application. The method is performed by a terminal device. As shown in Figure 9, the method includes: receiving bitmap information transmitted from the network side device, wherein each bit in the bitmap information and each of the configured SRS resource sets have a predefined correspondence relationship, and the SRI indicates one SRS resource set selected by a precoding instruction in the predefined correspondence relationship, wherein the SRS resource set is selected when the terminal device transmits a PUSCH; corresponds to These may include, but are not limited to, steps used to direct the use of spatially filtered beams.

[0107] Optionally, SRI The number of bits in the SRI indication field is N SRS where N SRS is the number of SRS resource sets configured corresponding to the terminal device.

[0108] Optionally, the plurality of SRS reference signal sets include: a periodic SRS resource set; A semi-persistent SRS resource set, aperiodic SRS resource set, or

[0109] 10, it is a schematic configuration diagram of a communication device 100 provided by an embodiment of the present application. The communication device 100 shown in FIG. 10 may include a transceiver module 1001 and a processing module 1002. The transceiver module 1001 may include a transmitting module and / or a receiving module, where the transmitting module is used to realize a transmitting function and the receiving module is used to realize a receiving function, and the transceiver module 1001 can realize a transmitting function and / or a receiving function.

[0110] The communication device 100 may be a terminal device (e.g., a terminal device in the method embodiments described above), a device in a terminal device, or a device usable in conjunction with a terminal device, or the communication device 100 may be a network device, a device in a network device, or a device usable in conjunction with a network device.

[0111] If the communication device 100 is a network device, a first configuration module for configuring, for a terminal device, N single-port sounding reference signal (SRS) resources corresponding to PUSCH transmission based on a non-codebook of up to four or more layers, where N is a positive integer greater than 4 and less than or equal to 8; a second setting module for setting the N SRS resources into at least two SRS resource sets, each SRS resource set including up to four SRS resources; a transceiver module for sending an SRS resource indication (SRI) to the terminal device, where the SRI indicates at least one SRS resource among the N configured SRS resources, and the PUSCH is transmitted using the same precoding used by the at least one SRS resource indicated by the SRI.

[0112] 11, which is a schematic diagram of another communication device 110 provided by an embodiment of the present application. The communication device 110 may be a network device, a terminal device (for example, the terminal device in the above-mentioned method embodiment), a chip, chip system, processor, etc. that supports the network device to implement the above-mentioned method, or a chip, chip system, processor, etc. that supports the terminal device to implement the above-mentioned method. The device can be used to implement the method described in the above-mentioned method embodiment, and for details, please refer to the description in the above-mentioned method embodiment.

[0113] The communication device 110 may include one or more processors 1101. The processor 1101 may be a general-purpose processor or a special-purpose processor, etc. For example, it may be a baseband processor or a central processing unit. The baseband processor can process communication protocols and communication data, and the central processing unit can control the communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or CU, etc.), execute computer programs, and process data of the computer programs.

[0114] Optionally, the communication device 110 may further include one or more memories 1102, in which computer programs 1103 may be stored, and the processor 1101 executes the computer programs 1103 so that the communication device 110 performs the methods described in the above method embodiments. Optionally, the memory 1102 may store data. The communication device 110 and the memory 1102 may be configured separately or integrated together.

[0115] Optionally, the communication device 110 includes a transceiver 1104, an antenna 1105The transceiver 1104 may further include a transceiver circuit, which may be referred to as a transceiver unit, transceiver, or transceiver circuit, and is used to realize a transmitting and receiving function. The transceiver 1104 may include a receiver and a transmitter, and the receiver may be referred to as a receiver or a receiving circuit, and is used to realize a receiving function, and the transmitter may be referred to as a transmitter or a transmitting circuit, and is used to realize a transmitting function.

[0116] Optionally, the communication device 110 may include one or more interface circuits. 1106 The interface circuit may further include: 1106 is used to receive and transmit code instructions to the processor 1101. The processor 1101 executes the code instructions so that the communication device 110 performs the methods described in the above method embodiments.

[0117] If the communication device 110 is a terminal device (e.g., a terminal device in the method embodiments described above), the processor 1101 performs step S202 of Fig. 2, step S302 of Fig. 3a, step S402 of Fig. 4, step S1002 of Fig. 10, or step S1104 of Fig. 11. The transceiver 1104 performs step S1101 of Fig. 11.

[0118] If the communication apparatus 110 is a network device, the transceiver 1104 performs step S201 of Fig. 2, step S301 of Fig. 3a, step S401 of Fig. 4, step S1001 of Fig. 10, or step S1103 of Fig. 11. The processor 1101 performs step S1102 of Fig. 11.

[0119] In one implementation, the processor 1101 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing receiving and transmitting functions may be separate or integrated. The transceiver circuit, interface, or interface circuit may be used to read and write code / data, or the transceiver circuit, interface, or interface circuit may be used to transmit or communicate signals.

[0120] In one implementation, the processor 1101 can store a computer program 1103, which executes on the processor 1101, thereby enabling the communication device 110 to perform the methods described in the above method embodiments. The computer program 1103 can be fixed to the processor 1101, in which case the processor 1101 can be implemented by hardware.

[0121] In one implementation, the communication device 110 can include circuitry capable of performing the transmit, receive, or communication functions of the method embodiments described above. The processors and transceivers described herein can be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards (PCBs), electronic devices, etc. The processors and transceivers can be fabricated using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide semiconductor (nMOS), p-type metal oxide semiconductor (PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0122] The communication device described in the above embodiments may be a network device or a terminal device (e.g., a terminal device in the above method embodiments), but the scope of the communication device in the description of this application is not limited thereto, and the structure of the communication device need not be limited by FIG. 11. The communication device may be an independent device or part of a larger device. For example, the communication device may be any of the following (1) to (6): (1) An independent integrated circuit IC or chip, or a chip system or subsystem. (2) A set having one or more ICs, optionally the set of ICs may include a memory element for storing data, computer programs. (3) ASIC, such as a modem. (4) Modules that can be embedded within other devices. (5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handhelds, mobile units, in-vehicle devices, network devices, cloud devices, artificial intelligence devices, etc. (6)Others.

[0123] In the case where the communication device may be a chip or a chip system, please refer to the schematic configuration diagram of the chip shown in Fig. 12. The chip shown in Fig. 12 includes a processor 1201 and an interface 1202. Here, the number of processors 1201 may be one or more, and the number of interfaces 1202 may be more than one.

[0124] When the chip is used to implement the functions of the terminal device in the embodiments of the present application (for example, the terminal device in the method embodiments described above), Optionally, the chip further includes a memory 1203, which is used to store necessary computer programs and data.

[0125] As will be appreciated by those skilled in the art, the various illustrative logical blocks and steps described in the embodiments of the present application can be realized by electronic hardware, computer software, or a combination of both. Whether such functions are realized by hardware or software is determined by specific applications and overall system design requirements. Those skilled in the art can realize the above functions using various methods for each specific type of application, but such realization should not be understood as exceeding the scope of protection of the embodiments of the present application.

[0126] An embodiment of the present application further provides a precoding instruction system supporting PUSCH transmission based on an 8Tx codebook, the system including a communication device that is a terminal device in the embodiment of FIG. 10 (e.g., a terminal device in the method embodiment described above) and a communication device that is a network device, or the system including a communication device that is a terminal device in the embodiment of FIG. 11 (e.g., a terminal device in the method embodiment described above) and a communication device that is a network device.

[0127] The present application further provides a computer-readable storage medium having instructions stored thereon, which, when executed, perform the functions of any one of the method embodiments described above.

[0128] The present application further provides a computer program product, which, when executed by a computer, implements the functions of any one of the above method embodiments.

[0129] In the above embodiments, all or part of the implementation can be implemented using software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the implementation can be in the form of a computer program product. The computer program product includes one or more computer programs. When loaded and executed on a computer, the computer programs generate the flow or functions described in the embodiments of the present application. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer program can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, radio, microwave, etc.) methods. The computer-readable storage medium can be any available medium accessible by a computer, or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid state drives (SSDs)).

[0130] As will be understood by those skilled in the art, the various numerals such as first, second, etc. in the present application are used for ease of explanation and do not limit the scope of the embodiments of the present application or represent a priority order.

[0131] At least one in the present application may be described as one or more, and more may be two, three, four or more, and is not limited in the present application. In the present application, for one technical feature, the technical feature is distinguished by "first", "second", "third", "A", "B", "C", and "D", etc., and there is no order of priority or magnitude among the technical features described by "first", "second", "third", "A", "B", "C", and "D".

[0132] The correspondences shown in each table in this application may be preset or predefined. The possible values ​​of information in each table are merely examples, and other values ​​may be set; this application is not limited thereto. When setting the correspondences between information and each parameter, it is not necessary to set all of the correspondences shown in each table. For example, the correspondences shown by specific rows in the tables in this application do not need to be set. Appropriate modifications and adjustments, such as division and merging, may also be made based on the tables. The names of the parameters indicated by the titles of the tables may also be other names understandable to the communication device, and the possible values ​​or representation methods of the parameters may also be other values ​​or representation methods understandable to the communication device. The tables may be implemented using other data structures, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, or hash tables.

[0133] Predefined in this application can be understood as defined, predefined, stored, pre-stored, pre-agreed, pre-set, fixed, or pre-baked.

[0134] As those skilled in the art will appreciate, each example unit and algorithm step described in the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software is determined by the specific application and design constraints of the technical solution. Those skilled in the art can implement the described functions using different methods according to each specific application, but such implementation should not be considered as going beyond the scope of the present application.

[0135] As will be apparent to those skilled in the art, for the convenience of explanation, the specific operation processes of the above-described systems, devices and units are to be referred to the corresponding processes in the above-described method embodiments, and detailed explanations thereof will be omitted here.

[0136] The above description is merely a specific embodiment of the present application, and the scope of protection of the present application is not limited thereto. Any modifications or substitutions that a person skilled in the art can easily make within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should also be based on the scope of protection of the claims.

Claims

1. 1. A precoding indication method for supporting 8Tx codebook-based Physical Uplink Shared Channel (PUSCH) transmission, the method being performed by a network side device, the method comprising: determining at least one sounding reference signal (SRS) resource set having a codebook function for a terminal device, each SRS resource set including a plurality of SRS resources, the plurality of SRS resources constituting an SRS resource group corresponding to eight SRS antenna ports for uplink channel sounding; transmitting an SRS resource indication (SRI) to the terminal device, the SRI indicating a spatial filtration beam to be used for one SRS resource set for PUSCH transmission among the at least one SRS resource set; The method further includes transmitting bitmap information to the terminal device, wherein each bit in the bitmap information and each of the configured SRS resource sets have a predefined correspondence relationship, and the SRI indicates one SRS resource set selected by a precoding instruction in the predefined correspondence relationship, and is used to instruct the terminal device to use a spatial filtration beam corresponding to the SRS resource set when transmitting a PUSCH. A precoding indication method for supporting PUSCH transmission based on an 8Tx codebook, comprising:

2. The method further includes: acquiring capability information of the terminal device transmitted from the terminal device, and determining the at least one SRS resource set based on the capability information of the terminal device. The precoding indication method for supporting 8Tx codebook-based PUSCH transmission according to claim 1 .

3. The capability information of the terminal device includes fully coherent, partially coherent, or non-coherent; The precoding indication method for supporting 8Tx codebook-based PUSCH transmission according to claim 2 .

4. The plurality of SRS resources include: a single-port SRS resource; a two-port SRS resource; a 4-port SRS resource; and The precoding indication method for supporting 8Tx codebook-based PUSCH transmission according to claim 1 .

5. The plurality of SRS resources may include a combination of SRS resources having the same number of ports, or may include a combination of SRS resources having different numbers of ports. The precoding indication method for supporting 8Tx codebook-based PUSCH transmission according to claim 4 .

6. The plurality of SRS resources include: a combination consisting of two 4-port SRS resources; a combination consisting of one 4-port SRS resource and two 2-port SRS resources; a combination consisting of four two-port SRS resources; a combination consisting of eight single-port SRS resources; The precoding indication method for supporting 8Tx codebook-based PUSCH transmission according to claim 4 .

7. The method further includes the step of transmitting an SRI table to the terminal device, wherein the SRI table includes a correspondence relationship between an SRI and the SRS resource set, and the number of bits of an SRI indication field of the SRI is determined by an NSRS, and the NSRS is the number of SRS resource sets configured corresponding to the terminal device. The precoding indication method for supporting 8Tx codebook-based PUSCH transmission according to claim 1 .

8. The number of bits of the SRI indication field of the SRI is determined by NSRS, and the NSRS is the number of SRS resource sets configured corresponding to the terminal device; The precoding indication method for supporting 8Tx codebook-based PUSCH transmission according to claim 1 .

9. The plurality of SRS reference signal sets include: a periodic SRS resource set; a semi-persistent SRS resource set; a periodic SRS resource set; The precoding indication method for supporting 8Tx codebook-based PUSCH transmission according to claim 1 .

10. 1. A precoding indication method for supporting 8Tx codebook-based Physical Uplink Shared Channel (PUSCH) transmission, the method being performed by a terminal device, the method comprising: receiving an SRS resource indication (SRI) transmitted from a network side device, the SRI indicating a spatial filtration beam to be used for one SRS resource set for PUSCH transmission among at least one SRS resource set; receiving bitmap information transmitted from the network side device, wherein each bit in the bitmap information and each configured SRS resource set have a predefined correspondence relationship, and the SRI indicates one SRS resource set selected by a precoding instruction in the predefined correspondence relationship, and is used to instruct the terminal device to use a spatial filtration beam corresponding to the SRS resource set when transmitting a PUSCH; A precoding indication method for supporting PUSCH transmission based on an 8Tx codebook, comprising:

11. and further comprising: transmitting capability information of the terminal device to the network side device, wherein the capability information of the terminal device is used to determine the at least one SRS resource set. The precoding indication method for supporting 8Tx codebook-based PUSCH transmission according to claim 10.

12. The capability information of the terminal device includes fully coherent, partially coherent, or non-coherent; The precoding indication method for supporting 8Tx codebook-based PUSCH transmission according to claim 11 .

13. receiving an SRI table transmitted from the network side device, the SRI table including a correspondence between an SRI and the SRS resource set, the number of bits of an SRI indication field of the SRI being determined by an NSRS, the NSRS being the number of SRS resource sets configured corresponding to the terminal device; The precoding indication method for supporting 8Tx codebook-based PUSCH transmission according to claim 10.

14. The number of bits of the SRI indication field of the SRI is determined by NSRS, and the NSRS is the number of SRS resource sets configured corresponding to the terminal device; The precoding indication method for supporting 8Tx codebook-based PUSCH transmission according to claim 10.

15. The plurality of SRS reference signal sets include: a periodic SRS resource set; a semi-persistent SRS resource set; a periodic SRS resource set; The precoding indication method for supporting 8Tx codebook-based PUSCH transmission according to claim 10.

16. 1. A precoding instruction apparatus supporting a physical uplink shared channel (PUSCH) transmission based on an 8Tx codebook, the apparatus being applied to a network side device, the apparatus comprising: a processing module for determining at least one sounding reference signal (SRS) resource set having a codebook function for a terminal device, each SRS resource set including a plurality of SRS resources, the plurality of SRS resources constituting an SRS resource group corresponding to eight SRS antenna ports for uplink channel sounding; a first transceiver module for transmitting an SRS resource indication (SRI) to the terminal device, the SRI indicating a spatial filtration beam to be used for one SRS resource set for PUSCH transmission among the at least one SRS resource set; The first transceiver module further comprises: Transmitting bitmap information to the terminal device, where each bit in the bitmap information and each of the configured SRS resource sets have a predefined correspondence relationship, and the SRI indicates one SRS resource set selected by a precoding instruction in the predefined correspondence relationship, and is used to instruct the terminal device to use a spatial filtration beam corresponding to the SRS resource set when transmitting a PUSCH. A precoding instruction device that supports PUSCH transmission based on an 8Tx codebook.

17. 1. A precoding instruction apparatus supporting a physical uplink shared channel (PUSCH) transmission based on an 8Tx codebook, the apparatus being applied to a terminal device, the apparatus comprising: a second transceiver module for receiving an SRS resource indication (SRI) transmitted from a network side device, the SRI indicating a spatial filtration beam to be used for one SRS resource set for PUSCH transmission among at least one SRS resource set; The second transceiver module further comprises: receiving bitmap information transmitted from the network side device, wherein each bit in the bitmap information and each configured SRS resource set have a predefined correspondence relationship, and the SRI indicates one SRS resource set selected by a precoding instruction in the predefined correspondence relationship, and is used to instruct the terminal device to use a spatial filtration beam corresponding to the SRS resource set when transmitting a PUSCH; A precoding instruction device that supports PUSCH transmission based on an 8Tx codebook.

18. A communication device, a processor and a memory, The memory stores a computer program; The processor executes a computer program stored in the memory to cause the communication device to perform the method according to any one of claims 1 to 9 or 10 to 15. A communication device comprising:

19. A communication device, a processor and an interface circuit; the interface circuit receives and transmits code instructions to the processor; The processor executes the code instructions to perform the method of any one of claims 1 to 9 or 10 to 15. A communication device comprising:

20. A computer-readable storage medium having instructions stored thereon, When the instructions are executed, the method according to any one of claims 1 to 9 or 10 to 15 is achieved. A computer-readable storage medium comprising:

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