WO2022205459A1

WO2022205459A1 - Wireless communication method, terminal device, and network device

Info

Publication number: WO2022205459A1
Application number: PCT/CN2021/085414
Authority: WO
Inventors: 方昀; 陈文洪; 史志华; 黄莹沛; 田杰娇
Original assignee: Oppo广东移动通信有限公司
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2022-10-06
Also published as: CN116547935A; WO2022205797A1

Abstract

The present application provides a wireless communication method, a terminal device, and a network device, the method comprising: receiving indication information for indicating PUSCH transmission, wherein the PUSCH is repeatedly transmitted on the basis of a first SRS resource in a first SRS resource set and a second SRS resource in a second SRS resource set, both the first SRS resource set and the second SRS resource set are used for codebook transmission, and when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different, the maximum number of layers of the PUSCH does not exceed the minimum value of the number of ports of the first SRS resource and the number of ports of the second SRS resource (S210). The solution provided in the present application enables the terminal device to repeatedly transmit the PUSCH. Moreover, during multi-TRP repeated uplink transmission, the number of layers selected by the terminal device can be supported by the terminal device, and the communication quality is guaranteed.

Description

Wireless communication method, terminal device and network device

technical field

The embodiments of the present application relate to the field of communication, and more particularly, to a wireless communication method, a terminal device, and a network device.

Background technique

As of R16, the NR system only allows the base station to configure at most one SRS resource set for the UE, and a maximum of two SRS resources can be configured in this SRS resource set, and the two SRS resources contain the same number of SRS antenna ports.

In version 17 (R17), a scheme for repeated transmission of physical uplink shared channel (PUSCH) based on multiple transmission reception points (Transmission Reception Point, TRP) is introduced. Specifically, the downlink control information (Downlink Control Information, DCI) instructs the terminal device to repeatedly transmit the PUSCH, thereby enhancing the reliability of the PUSCH through different TRPs.

However, there is currently no detailed solution on how the terminal device implements the repeated transmission of the PUSCH.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a wireless communication method, a terminal device, and a network device, which can enable the terminal device to realize the repeated transmission of PUSCH. In addition, when performing uplink repeated transmission of multiple TRPs, the number of layers selected by the terminal device can be obtained by the terminal device. The support of the equipment ensures the communication quality.

In a first aspect, the present application provides a wireless communication method, including:

Receive indication information for indicating physical uplink shared channel PUSCH transmission; wherein, the PUSCH is repeatedly transmitted based on the first SRS resource in the first sounding reference signal SRS resource set and the second SRS resource in the second SRS resource set, so Both the first SRS resource set and the second SRS resource set are used for codebook transmission, and when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different, the maximum number of layers of the PUSCH It does not exceed the minimum value of the number of ports of the first SRS resource and the number of ports of the second SRS resource.

In a second aspect, the present application provides a wireless communication method, including:

Sending indication information for indicating physical uplink shared channel PUSCH transmission; wherein, the PUSCH is repeatedly transmitted based on the first SRS resource in the first sounding reference signal SRS resource set and the second SRS resource in the second SRS resource set, so Both the first SRS resource set and the second SRS resource set are used for codebook transmission, and when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different, the maximum number of layers of the PUSCH It does not exceed the minimum value of the number of ports of the first SRS resource and the number of ports of the second SRS resource.

In a third aspect, the present application provides a terminal device for executing the method in the first aspect or each of its implementations. Specifically, the terminal device includes a functional module for executing the method in the first aspect or each implementation manner thereof.

In one implementation, the terminal device may include a processing unit for performing functions related to information processing. For example, the processing unit may be a processor.

In an implementation manner, the terminal device may include a sending unit and/or a receiving unit. The sending unit is used to perform functions related to transmission, and the receiving unit is used to perform functions related to reception. For example, the sending unit may be a transmitter or a transmitter, and the receiving unit may be a receiver or a receiver. For another example, the terminal device is a communication chip, the sending unit may be an input circuit or an interface of the communication chip, and the sending unit may be an output circuit or an interface of the communication chip.

In a fourth aspect, the present application provides a network device for executing the method in the second aspect or each of its implementations. Specifically, the network device includes a functional module for executing the method in the second aspect or each implementation manner thereof.

In one implementation, the network device may include a processing unit for performing functions related to information processing. For example, the processing unit may be a processor.

In one implementation, the network device may include a sending unit and/or a receiving unit. The sending unit is used to perform functions related to transmission, and the receiving unit is used to perform functions related to reception. For example, the sending unit may be a transmitter or a transmitter, and the receiving unit may be a receiver or a receiver. For another example, the network device is a communication chip, the receiving unit may be an input circuit or an interface of the communication chip, and the sending unit may be an output circuit or an interface of the communication chip.

In a fifth aspect, the present application provides a terminal device including a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, so as to execute the method in the above-mentioned first aspect or each implementation manner thereof.

In one implementation, the processor is one or more and the memory is one or more.

In one implementation, the memory may be integrated with the processor, or the memory may be provided separately from the processor.

In one implementation, the terminal device also includes a transmitter (transmitter) and a receiver (receiver).

In a sixth aspect, the present application provides a network device including a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, so as to execute the method in the above-mentioned second aspect or each implementation manner thereof.

In one implementation, the network device also includes a transmitter (transmitter) and a receiver (receiver).

In a seventh aspect, the present application provides a chip for implementing any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof. Specifically, the chip includes: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes any one of the above-mentioned first to second aspects or each of its implementations method in .

In an eighth aspect, the present application provides a computer-readable storage medium for storing a computer program, the computer program causing a computer to execute the method in any one of the above-mentioned first aspect to the second aspect or each of its implementations .

In a ninth aspect, the present application provides a computer program product, comprising computer program instructions, the computer program instructions causing a computer to execute the method in any one of the above-mentioned first to second aspects or the implementations thereof.

In a tenth aspect, the present application provides a computer program, which, when run on a computer, causes the computer to execute the method in any one of the above-mentioned first to second aspects or the respective implementations thereof.

Based on the above technical solutions, it is possible to enable the terminal device to implement repeated transmission of PUSCH. In addition, when performing uplink repeated transmission of multiple TRPs, when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different, the Constraining the maximum number of layers of the PUSCH so that it does not exceed the minimum of the number of ports of the first SRS resource and the number of ports of the second SRS resource, so that the number of layers selected by the terminal device can be supported by the terminal device , to ensure the communication quality.

Description of drawings

FIG. 1 is an example of a scenario provided by an embodiment of the present application.

FIG. 2 is a schematic flowchart of a wireless communication method provided by an embodiment of the present application.

FIG. 3 is a schematic block diagram of a terminal device provided by an embodiment of the present application.

FIG. 4 is a schematic block diagram of a network device provided by an embodiment of the present application.

FIG. 5 is a schematic block diagram of a communication device provided by an embodiment of the present application.

FIG. 6 is a schematic block diagram of a chip provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.

As shown in FIG. 1 , the communication system 100 may include a terminal device 110 and a network device 120 . The network device 120 may communicate with the terminal device 110 through the air interface. Multi-service transmission is supported between the terminal device 110 and the network device 120 .

It should be understood that the embodiment of the present application only uses the communication system 100 for exemplary description, but the embodiment of the present application is not limited thereto. That is to say, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: long term evolution (Long Term Evolution, LTE) system, LTE time division duplex (Time Division Duplex, TDD), universal mobile communication system (Universal mobile communication system) Mobile Telecommunication System, UMTS), Internet of Things (Internet of Things, IoT) system, Narrow Band Internet of Things (NB-IoT) system, enhanced Machine-Type Communications (enhanced Machine-Type Communications, eMTC) system , 5G communication system (also known as New Radio (NR) communication system), or future communication system, etc.

In the communication system 100 shown in FIG. 1 , the network device 120 may be an access network device that communicates with the terminal device 110 . An access network device may provide communication coverage for a particular geographic area, and may communicate with terminal devices 110 (eg, UEs) located within the coverage area.

The network device 120 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in a Long Term Evolution (Long Term Evolution, LTE) system, or a next generation radio access network (Next Generation Radio Access Network, NG RAN) device, Or a base station (gNB) in an NR system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device 120 can be a relay station, an access point, a vehicle-mounted device, a wearable Devices, hubs, switches, bridges, routers, or network devices in the future evolved Public Land Mobile Network (PLMN).

The terminal device 110 may be any terminal device, which includes, but is not limited to, a terminal device that adopts a wired or wireless connection with the network device 120 or other terminal devices.

For example, the terminal equipment 110 may refer to an access terminal, a user equipment (UE), 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, user agent, or user device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, an IoT device, a satellite handset, a Wireless Local Loop (WLL) station, a Personal Digital Assistant , PDA), handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks or terminal devices in future evolution networks, etc.

The terminal device 110 may be used for device-to-device (Device to Device, D2D) communication.

The wireless communication system 100 may further include a core network device 130 that communicates with the base station, and the core network device 130 may be a 5G core network (5G Core, 5GC) device, for example, an Access and Mobility Management Function (Access and Mobility Management Function). , AMF), another example, authentication server function (Authentication Server Function, AUSF), another example, user plane function (User Plane Function, UPF), another example, session management function (Session Management Function, SMF). Optionally, the core network device 130 may also be an evolved packet core (Evolved Packet Core, EPC) device of an LTE network, for example, a session management function+core network data gateway (Session Management Function+Core Packet Gateway, SMF+PGW- C) Equipment. It should be understood that the SMF+PGW-C can simultaneously implement the functions that the SMF and the PGW-C can implement. In the process of network evolution, the above-mentioned core network equipment may also be called by other names, or a new network entity may be formed by dividing the functions of the core network, which is not limited in this embodiment of the present application.

The various functional units in the communication system 100 may also establish a connection through a next generation network (next generation, NG) interface to implement communication.

For example, the terminal equipment establishes an air interface connection with the access network equipment through the NR interface to transmit user plane data and control plane signaling; the terminal equipment can establish a control plane signaling connection with the AMF through the NG interface 1 (N1 for short); access Network equipment, such as the next generation wireless access base station (gNB), can establish a user plane data connection with the UPF through the NG interface 3 (N3 for short); the access network equipment can establish a control plane signaling with the AMF through the NG interface 2 (N2 for short). connection; UPF can establish a control plane signaling connection with SMF through NG interface 4 (N4 for short); UPF can exchange user plane data with the data network through NG interface 6 (N6 for short); AMF can communicate with SMF through NG interface 11 (N11 for short) The SMF establishes a control plane signaling connection; the SMF can establish a control plane signaling connection with the PCF through the NG interface 7 (N7 for short).

FIG. 1 exemplarily shows one base station, one core network device and two terminal devices. Optionally, the wireless communication system 100 may include multiple base station devices and the coverage area of each base station may include other numbers of terminals equipment, which is not limited in this embodiment of the present application.

It should be understood that, in the embodiments of the present application, a device having a communication function in the network/system can be referred to as a communication device. Taking the communication system 100 shown in FIG. 1 as an example, the communication device may include a network device 120 and a terminal device 110 with a communication function, and the network device 120 and the terminal device 110 may be the devices described above, which will not be repeated here; The communication device may further include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

The embodiment of the present application provides a wireless communication method, which can be used to determine a time slot for sending an SRS.

To facilitate understanding of the embodiments of the present application, the SRS is introduced below.

The Sounding Reference Signal (SRS) signal is an important reference signal in the 5G/NR system and is widely used in various functions in the NR system. For example, the SRS can be used in the following scenarios:

1. For the acquisition of downlink channel state information (UE sounding procedure for DL CSI acquisition)

2. Frequency domain scheduling and precoding determination for uplink transmission;

3. Used for Antenna Switching function;

4. Used for carrier switching (UE sounding procedure between component carriers);

5. Used for positioning function;

6. Cooperate with codebook-based uplink transmission;

7. Cooperate with the uplink transmission based on non-codebook (Non-Codebook based).

A network device can configure one or more SRS resource sets (SRS Resource sets) for a terminal device, and each SRS Resource set can be configured with one or more SRS resources (SRS resources).

The transmission of the SRS can be divided into periodic (Periodic), semi-persistent (Semi-persistent), and aperiodic (Aperiodic).

Periodic SRS refers to periodically transmitted SRS, and its period and time slot offset are configured by RRC signaling. Once the terminal device receives the corresponding configuration parameters, it will send SRS according to a certain period until the RRC configuration is invalid. The spatial correlation information (Spatial Relation Info) of the periodic SRS is also configured by RRC signaling. The spatial correlation information may indicate a channel state information reference signal (Channel State Information Reference Signal, CSI-RS), a synchronization signal/physical broadcast channel block (Synchronization Signal/PBCH Block, SSB) or a reference SRS. For example, the transmission beam of the periodic SRS may be indicated in an implicit manner. For example, the terminal device determines the transmission beam of the periodic SRS according to the indicated CSI-RS/SSB. For another example, the terminal device may determine the transmission beam used for transmitting the SRS on the SRS resource through the spatial correlation information of the SRS resource.

The period and slot offset of semi-persistent SRS are configured by RRC signaling, but its activation and deactivation signaling is carried by MAC CE. The terminal device starts to transmit SRS after receiving the activation signaling until it receives the deactivation signaling. The spatially related information (transmission beam) of the semi-persistent SRS is carried along with the MAC CE that activates the SRS.

In the NE system, SRS management and configuration are performed in the form of SRS resource sets. According to different purposes, the base station may configure multiple SRS resource sets for the UE, each SRS resource set includes one or more SRS resources, and each SRS resource includes 1, 2 or 4 ports. The configuration information of each SRS resource set contains a usage indication, which can be configured as beam management (beamManagement), codebook (codebook), non-codebook (nonCodebook) or antenna switching (antennaSwitching), which are respectively used for uplink beam management , Codebook-based uplink channel information acquisition, uplink channel information acquisition based on a non-codebook uplink transmission scheme, and downlink channel information acquisition based on SRS antenna switching.

In order to facilitate the understanding of the solution of the present application, the relevant content of the codebook-based uplink transmission will be described below. Codebook-based uplink transmission may also be referred to as codebook transmission. Codebook-based uplink transmission is a multi-antenna transmission technology that determines the TPMI of uplink transmission based on a fixed codebook. The process of codebook-based uplink transmission in the NR system is as follows:

1. The UE sends the SRS to the base station on the SRS resource set obtained through the channel state information (Channel State Information, CSI) used for codebook-based uplink transmission.

2. The base station performs uplink channel detection according to the SRS sent by the UE, performs resource scheduling on the UE, and determines the SRS resource corresponding to the uplink transmission based on the codebook, the number of layers of the uplink transmission and the precoding matrix. Further, the UE can determine the modulation and coding strategy (Modulation and Coding Scheme, MCS) for uplink transmission according to the precoding matrix and channel information, and then the base station allocates PUSCH resources and assigns the corresponding MCS, TPMI, layer indicator (Layer Indicator, LI). ) and an SRS resource indication (Sounding Reference Signal Resource Indicator, SRI) are notified to the UE.

3. The UE modulates and encodes the data according to the MCS indicated by the base station, and uses SRI, TPMI and LI to determine the precoding matrix and the number of transmission layers used for data transmission, and then precodes and transmits the data. The demodulation pilot of the PUSCH The signal and PUSCH data use the same precoding method.

4. The base station estimates the uplink channel according to the demodulated pilot channel, and performs data detection.

In R16 and before, the NR system allows the base station to configure at most one SRS resource set for the UE obtained through the CSI used for codebook-based uplink transmission. A maximum of two SRS resources can be configured in the SRS resource set, and the two SRS resources include The same number of SRS antenna ports. Since the MTRP-based PUSCH enhancement was introduced in R17, starting from R17, the NR system allows the base station to configure at most two SRS resource sets for the UE for CSI acquisition based on codebook-based uplink transmission. Whether the number of resources that can be included in the two SRS resource sets is the same is limited. The base station indicates the SRS resource corresponding to the PUSCH to the UE through the SRI field in the DCI to assist the UE to determine the antenna and analog beamforming used for PUSCH transmission according to the SRS resource selected by the base station. Since the number of SRS resources configured by the base station for different uplink transmissions may be different, determining the number of bits corresponding to the SRI based on the uplink transmission can reduce the overhead of the SRI. Therefore, the size of the SRI information used to indicate the SRS resource corresponding to the PUSCH in the uplink scheduling information depends on the number of SRS resources configured for the uplink transmission corresponding to the PUSCH. When the base station configures only one SRS resource for one uplink transmission of the UE, the PUSCH under the uplink transmission corresponds to the SRS resource, and the SRI information field may not exist in the uplink scheduling information.

In R15, for codebook-based uplink transmission, the base station can configure a SRS resource set with a purpose of "codebook" for the terminal, which includes at most two SRS resources, and all SRS resources have the same number of antenna ports. The codebook subset that the base station can configure for the terminal depends on the coherent transmission capability of the terminal. The R15 protocol stipulates that the coherent transmission capability is a non-coherent terminal (NC-UE) and a partially coherent terminal (PC-UE) only allowed to configure and use a part of the codebook subset. Combined with the power control rules of PUSCH, these terminals cannot reach full power when performing low-rank transmission. In an actual system, the signal-to-noise ratio of the terminal located at the edge of the cell is usually relatively low. In order to ensure the signal quality, the base station often schedules the terminal to perform low-rank transmission and transmit with the largest possible transmit power. The inability to transmit at full power will affect the performance of the terminal in the low signal-to-noise ratio area, thereby affecting the cell coverage.

The inability of NC-UE and PC-UE to achieve full power transmission at low rank is due to codebook subset limitation and PUSCH power control rules. The full power transmission of PUSCH can be achieved by enhancing the codebook subset restriction or enhancing the PUSCH power control rule. For a terminal where each power amplifier (PA) can transmit at full power, R16 allows the base station to configure a specific full power transmission mode for the terminal, called Mode 0 (Mode0) full power transmission mode. Mode 0 full power transmission is no longer applicable if one or more of the terminal's PAs cannot transmit at full power. In order to enable terminals that cannot transmit at full power to all or part of the PAs, they can also transmit at full power. R16 introduces two full power transmission modes, Mode 1 (Mode1) and Mode 2 (Mode2).

Mode 2 adopts the same codebook subset configuration restriction as R15. Through the new SRS resource configuration method and new PUSCH power control rules, incoherent or partially coherent terminals are allowed to use the PA using antenna virtualization or full power transmission A specific precoding matrix achieves full power transmission of PUSCH. Mode 2 allows the terminal to report precoding matrices that can be transmitted at full power, and the terminal can use these precoding matrices to perform full power transmission of PUSCH.

For the mode 2 scheme, a maximum of 4 SRS resources can be configured in the SRS resource set. When multiple SRS resources are configured, the number of antenna ports of the multiple SRS resources can be the same or different, and at most two different spatial beams can be configured.

The following describes the solution for determining the TPMI in the downlink control channel with reference to Table 1 and Table 2.

Table 1: TPMI TRI table for 4 ports

As shown in Table 1, for the 4-port SRS resource, based on the index indicated by the network device, the corresponding number of layers and TPMI can be determined according to the corresponding codebook subset.

Table 2: TPMI TRI table for 2 ports

As shown in Table 2, for the SRS resource of 2 ports, based on the index indicated by the network device, the corresponding number of layers and TPMI can be determined according to the corresponding codebook subset.

Based on the above analysis, as of R16, the NR system only allows the base station to configure at most one SRS resource set for the UE, and a maximum of two SRS resources can be configured in this SRS resource set, and the two SRS resources contain the same number of SRS antenna ports. In Release 17 (R17), a scheme for repeating PUSCH transmission based on multiple TRPs is introduced. Specifically, the terminal equipment can be instructed through DCI to repeat the PUSCH transmission, thereby enhancing the reliability of PUSCH through different TRPs. In other words, the base station is allowed to configure at most multiple SRS resource sets for the UE, and each SRS resource set can be configured with at most multiple SRS resources, so that the UE can perform uplink repeated transmission based on the SRS resources in the multiple SRS resource sets. However, when the maximum number of ports in the multiple SRS resource sets is different, the number of ports of the SRS resources in the multiple SRS resource sets used for uplink transmission may be different, so the number of ports used for uplink transmission may be different. The number of ports of the SRS resources in the multiple SRS resource sets may include the number of ports that the UE does not support, so that the number of layers selected by the terminal device cannot be supported by the terminal device, and the communication quality cannot be guaranteed.

Based on this, the embodiments of the present application provide a wireless communication method, a terminal device, and a network device, which can enable the terminal device to implement repeated PUSCH transmission. The data is supported by the terminal equipment to ensure the communication quality.

FIG. 2 shows a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application, and the method 200 may be executed interactively by a terminal device and a network device. The terminal device shown in FIG. 2 may be the terminal device shown in FIG. 1 , and the network device shown in FIG. 2 may be the access network device shown in FIG. 1 .

As shown in FIG. 2, the method 200 may include some or all of the following:

S210: Receive indication information for indicating physical uplink shared channel PUSCH transmission; wherein, the PUSCH performs repeated transmission based on the first SRS resource in the first sounding reference signal SRS resource set and the second SRS resource in the second SRS resource set respectively. , the first SRS resource set and the second SRS resource set are both used for codebook transmission, and when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different, the maximum number of the PUSCH The number of layers does not exceed the minimum of the number of ports of the first SRS resource and the number of ports of the second SRS resource.

In other words, the terminal device receives the indication information for indicating PUSCH transmission, and correspondingly, the network device sends the indication information for indicating PUSCH transmission.

Of course, in other alternative embodiments, the PUSCH may be repeatedly transmitted based on SRS resources in multiple SRS resource sets, for example, the PUSCH may be repeatedly transmitted based on SRS resources in two or more SRS resource sets, respectively. In other alternative embodiments, when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different, single access may also be performed based on the first SRS resource or the second SRS resource point transmission, which is not limited in this application.

In some embodiments, the first SRS resource and the second SRS resource correspond to different beams or different receiving ends when the PUSCH is transmitted.

In other words, different SRS resources correspond to different beams or different receivers.

In some embodiments, the PUSCH is not configured for full power mode 2.

In some implementations, all SRS resources in the first SRS resource set have the same number of ports, and all SRS resources in the second SRS resource set have the same number of ports.

In other words, when the PUSCH is not configured as full power mode 2, the number of ports of all SRS resources in one SRS resource set is the same.

In some embodiments, the PUSCH is configured in full power mode 2.

In some implementations, the number of ports of all SRS resources in the first SRS resource set is the same or different, and the number of ports of all SRS resources in the second SRS resource set is the same or different.

In other words, when the PUSCH is configured in full power mode 2, the number of ports in one SRS resource set may be the same or different.

In some embodiments, a first set of port numbers of SRS resources included in the first SRS resource set and a second set of port numbers of SRS resources included in the second SRS resource set are the same or different.

In other words, when the PUSCH is configured as full power mode 2, the number of ports in different SRS resource sets may be the same or different.

In some implementation manners, the first port number set and the second port number set are different, including: the first port number set and the second port number set are all different; or, the first port number set The number set and the second port number set are partially different; or, the number of port numbers in the first port number set and the number of port numbers in the second port number set are different.

In some embodiments, when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different, it indicates that an error occurs in the configuration of the network device for the terminal device.

In some embodiments, the indication information is used to indicate that the SRS resource on which the PUSCH is based is transmitted based on the first SRS resource and the second SRS resource.

In some implementations, the indication information is dynamic signaling or semi-static signaling; or the indication information is physical layer signaling or higher layer signaling.

In some implementations, the indication information is carried in downlink control information DCI or radio resource control RRC signaling.

As an example, the indication information is SRS resource indication SRI information in the DCI or carried in a new indication field in the DCI. Optionally, the new indication field may be a dedicated indication field of the indication information.

In some embodiments, the port number of the first SRS resource is used to determine the first table, the port number of the second SRS resource is used to determine the second table, and the first table and the second table Each index of , respectively, corresponds to a layer number and/or a precoding matrix indication.

In some implementations, the indication of the number of first layers and/or the first precoding matrix for PUSCH transmission based on the first SRS resource is the indication of the number of layers or the precoding matrix corresponding to the first index in the first table, The second layer number and/or the second precoding matrix indication for PUSCH transmission based on the second SRS resource is the layer number or the precoding matrix indication corresponding to the second index in the second table.

In some implementations, when both the first number of layers and the second number of layers are present, the first number of layers is equal to the second number of layers, and the first number of layers and the second number of layers are The numbers do not exceed the stated minimum value.

In some implementations, when there is only one layer in the first number of layers and the number of second layers, the number of layers for PUSCH transmission based on the first SRS resource and the number of layers for PUSCH transmission based on the second SRS resource The number of layers to be transmitted is the one layer number, and the one layer number does not exceed the minimum value.

In some implementations, the first set of port numbers of the SRS resources included in the first SRS resource set includes multiple port numbers, and the number of bits occupied by an index in a table corresponding to the port numbers of the first SRS resource is less than When the number of bits occupied by the index in the table corresponding to the maximum port number in the first port number set, the first index is occupied by the index in the table corresponding to the maximum port number in the first port number set. The number of bits is filled with 0s, otherwise, the first index is not filled with 0s.

In some implementations, the second set of port numbers of the SRS resources included in the second SRS resource set includes multiple port numbers, and the number of bits occupied by an index in a table corresponding to the port numbers of the second SRS resource is less than When the number of bits occupied by the index in the table corresponding to the maximum port number in the second port number set, the second index is occupied by the index in the table corresponding to the maximum port number in the second port number set. The number of bits is filled with 0s, otherwise, the second index is not filled with 0s.

In some implementations, the indication information includes the first index and the second index.

In some implementations, the PUSCH is not configured for full power mode 2, and the first table and the second table are the same.

In some implementations, the PUSCH is configured as full power mode 2, and when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different, the first table and the second table different.

In some embodiments, the indication information is used to indicate information of time-frequency domain resources of the PUSCH.

The solution of the present application will be described below with reference to specific embodiments.

When the PUSCH is configured as full power mode 2, one SRS resource set can support SRS resources with different numbers of ports. So it needs to be divided into 4 cases to consider.

Example 1:

In this embodiment, the PUSCH is not configured as full power mode 2.

Case1:

If the PUSCH is not configured as full power mode 2, the number of SRS ports in the two SRS resource sets is the same.

Case2:

If the PUSCH is not configured as full power mode 2, the number of SRS ports in SRS resource set 1 is 4, and the number of SRS ports in SRS resource set 2 is 2, which are handled in two cases:

A. The maximum number of layers that can be supported at this time is 2, that is, when DCI indicates the TPMI and TRI of SRS resource 1, it needs to obtain the indication of TPMI and TRI according to the TPMI TRI table with the maximum number of layers of 2 and the number of ports of 4.

B. The terminal considers that there is an error in such a configuration.

Example 2:

In this embodiment, the PUSCH is configured as full power mode 2.

Case 1:

If the PUSCH is configured as full power mode 2, the port number set of the SRS resources configured in the SRS resource set 1 is different from the port number set of the SRS resources configured in the SRS resource set 2, such as the SRS resources configured in the SRS resource set 1. The number of ports in the set is {2,1}, and the number of ports of the SRS resource configured in the SRS resource set 2 is {2,4}. The following situations are handled:

A. The terminal considers that there is an error in such a configuration and does not handle it.

B. The maximum number of ports for the terminal to obtain SRS resource set 1 is 2, and the maximum number of ports for the terminal to obtain SRS resource set 2 is 4. Therefore, when the terminal performs multi-beam transmission based on two SRS resource sets, the maximum number of layers that can be supported is 2. When instructing resource set 1 to perform PUSCH transmission based on 2-port SRS resources, the network side fills in the TPMI value according to the 2-port TPMI TRI table (eg, Table 2) at this time. Indicate resource set 2. If PUSCH transmission is performed based on 4-port SRS resources, fill in the TPMI value according to the 4-port TPMI TRI table (such as Table 1), but the number of supported layers cannot exceed the maximum number of layers 2 that can be supported.

Case 2:

If the PUSCH is configured as full power mode 2, the port number set of the SRS resources configured in the SRS resource set 1 is different from the port number set of the SRS resources configured in the SRS resource set 2, such as the SRS resources configured in the SRS resource set 1. The number of ports in the SRS resource set is {2}, and the number of ports of the SRS resource configured in the SRS resource set 2 is {2, 4}. The following situations are handled:

Case 3:

B. The maximum number of ports for the terminal to obtain SRS resource set 1 is 2, and the maximum number of ports for the terminal to obtain SRS resource set 2 is 4. Therefore, when the terminal performs multi-beam transmission based on two SRS resource sets, the maximum number of layers that can be supported is 2. When instructing resource set 1 to perform PUSCH transmission based on 2-port SRS resources, the network side fills in the TPMI value according to the 2-port TPMI TRI table (eg, Table 2) at this time. Indicate resource set 2. If PUSCH transmission is performed based on 2-port SRS resources, fill in the TPMI value according to the 2-port SRS table. Since the size of the bit field occupied by the 2-port and 4-port TPMI TRI tables (for example, Table 1) is different, according to For 4-port ports, 0 is added to the front, but the number of supported layers cannot exceed the maximum number of layers that can be supported, 2.

Case 4:

If the PUSCH is configured as full power mode 2, the port number set of SRS resources configured in SRS resource set 1 is the same as the port number set of SRS resources configured in SRS resource set 2, such as the SRS resources configured in SRS resource set 1. The set of port numbers is {2,4}, and the number of ports of the SRS resource configured in SRS resource set 2 is {2,4}. The following situations are handled:

A. The maximum number of ports for the terminal to obtain SRS resource set 1 is 4, and the maximum number of ports for the terminal to obtain SRS resource set 2 is 4. Therefore, when the terminal performs multi-beam transmission based on two SRS resource sets, the maximum number of layers that can be supported is 4. When instructing resource set 1 to perform PUSCH transmission based on 2-port SRS resources, the network side fills in the TPMI value according to the 2-port TPMI TRI table (eg, Table 2) at this time. Indicate resource set 2 If PUSCH transmission is performed based on 4-port SRS resources, fill in the TPMI value according to the 4-port TPMI TRI table (such as Table 1), but the number of supported layers cannot exceed the two SRS resource sets indicated in the DCI. The number of ports corresponding to the SRS resource.

B. The maximum number of ports for the terminal to obtain SRS resource set 1 is 4, and the maximum number of ports for the terminal to obtain SRS resource set 2 is 4. Therefore, when the terminal performs multi-beam transmission based on two SRS resource sets, the maximum number of layers that can be supported is 4. When indicating that resource set 1 and resource set 2 both perform PUSCH transmission based on 4-port SRS resources, the network side fills in the TPMI values corresponding to the two resource sets according to the 4-port SRS table at this time.

The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings. However, the present application is not limited to the specific details of the above-mentioned embodiments. Within the scope of the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application. These simple modifications all belong to the protection scope of the present application. For example, the specific technical features described in the above-mentioned specific embodiments can be combined in any suitable manner unless they are inconsistent. In order to avoid unnecessary repetition, this application does not describe any possible combination. State otherwise. For another example, the various embodiments of the present application can also be combined arbitrarily, as long as they do not violate the idea of the present application, they should also be regarded as the content disclosed in the present application.

It should also be understood that, in the various method embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the present application. The implementation of the embodiments constitutes no limitation. In addition, in the embodiments of the present application, the terms "downlink" and "uplink" are used to indicate the transmission direction of signals or data, wherein "downlink" is used to indicate that the transmission direction of signals or data is from the site to the user equipment of the cell In the first direction, "uplink" is used to indicate that the transmission direction of the signal or data is the second direction sent from the user equipment of the cell to the site. For example, "downlink signal" indicates that the transmission direction of the signal is the first direction. In addition, in this embodiment of the present application, the term "and/or" is only an association relationship for describing associated objects, indicating that there may be three kinds of relationships. Specifically, A and/or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

The method embodiment of the present application is described in detail above with reference to FIG. 2 , and the apparatus embodiment of the present application is described in detail below with reference to FIG. 3 to FIG. 6 .

FIG. 3 is a schematic block diagram of a terminal device 300 according to an embodiment of the present application.

As shown in FIG. 3, the terminal device 300 may include:

A communication unit 310, configured to receive indication information for indicating physical uplink shared channel PUSCH transmission; wherein the PUSCH is based on the first SRS resource in the first sounding reference signal SRS resource set and the second SRS in the second SRS resource set respectively The resources are repeatedly transmitted, the first SRS resource set and the second SRS resource set are both used for codebook transmission, and when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different, the The maximum number of layers of the PUSCH does not exceed the minimum of the number of ports of the first SRS resource and the number of ports of the second SRS resource.

In some embodiments, the PUSCH is not configured for full power mode 2.

In some embodiments, all SRS resources in the first SRS resource set have the same number of ports, and all SRS resources in the second SRS resource set have the same number of ports.

In some embodiments, the PUSCH is configured in full power mode 2.

In some embodiments, the number of ports of all SRS resources in the first SRS resource set is the same or different, and the number of ports of all SRS resources in the second SRS resource set is the same or different.

In some embodiments, the first port number set and the second port number set are different, including: the first port number set and the second port number set are all different; or, the first port number set The number set and the second port number set are partially different; or, the number of port numbers in the first port number set and the number of port numbers in the second port number set are different.

In some embodiments, the indication information is dynamic signaling or semi-static signaling; or the indication information is physical layer signaling or higher layer signaling.

In some embodiments, the indication information is carried in downlink control information DCI or radio resource control RRC signaling.

In some embodiments, the indication information is SRS resource indication SRI information in the DCI or carried in a new indication field in the DCI.

In some embodiments, the indication of the number of first layers and/or the first precoding matrix for PUSCH transmission based on the first SRS resource is the indication of the number of layers or the precoding matrix corresponding to the first index in the first table, The second layer number and/or the second precoding matrix indication for PUSCH transmission based on the second SRS resource is the layer number or the precoding matrix indication corresponding to the second index in the second table.

In some embodiments, when both the first number of layers and the second number of layers are present, the first number of layers is equal to the second number of layers, and the first number of layers and the second number of layers are The numbers do not exceed the stated minimum value.

In some embodiments, when there is only one layer in the first number of layers and the number of second layers, the number of layers for PUSCH transmission based on the first SRS resource and the number of layers for PUSCH transmission based on the second SRS resource The number of layers to be transmitted is the one layer number, and the one layer number does not exceed the minimum value.

In some embodiments, the first set of port numbers of the SRS resources included in the first SRS resource set includes multiple port numbers, and the number of bits occupied by an index in a table corresponding to the port numbers of the first SRS resource is less than When the number of bits occupied by the index in the table corresponding to the maximum port number in the first port number set, the first index is occupied by the index in the table corresponding to the maximum port number in the first port number set. The number of bits is filled with 0s, otherwise, the first index is not filled with 0s.

In some embodiments, the second set of port numbers of the SRS resources included in the second SRS resource set includes multiple port numbers, and the number of bits occupied by an index in a table corresponding to the port numbers of the second SRS resource is less than When the number of bits occupied by the index in the table corresponding to the maximum port number in the second port number set, the second index is occupied by the index in the table corresponding to the maximum port number in the second port number set. The number of bits is filled with 0s, otherwise, the second index is not filled with 0s.

In some embodiments, the indication information includes the first index and the second index.

In some embodiments, the PUSCH is not configured for full power mode 2, and the first table and the second table are the same.

In some embodiments, the PUSCH is configured as full power mode 2, and when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different, the first table and the second table different.

FIG. 4 is a schematic block diagram of a network device 400 according to an embodiment of the present application.

As shown in FIG. 4 , the network device 400 may include:

A communication unit 410, configured to send indication information for indicating physical uplink shared channel PUSCH transmission; wherein the PUSCH is based on the first SRS resource in the first sounding reference signal SRS resource set and the second SRS in the second SRS resource set respectively The resources are repeatedly transmitted, the first SRS resource set and the second SRS resource set are both used for codebook transmission, and when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different, the The maximum number of layers of the PUSCH does not exceed the minimum of the number of ports of the first SRS resource and the number of ports of the second SRS resource.

In some embodiments, the PUSCH is not configured for full power mode 2.

In some embodiments, the PUSCH is configured in full power mode 2.

It should be understood that the apparatus embodiments and the method embodiments may correspond to each other, and similar descriptions may refer to the method embodiments. Specifically, the terminal device 300 shown in FIG. 3 may correspond to the corresponding subject in executing the method 200 of the embodiment of the present application, and the aforementioned and other operations and/or functions of the various units in the terminal device 300 are respectively for the purpose of realizing the method shown in FIG. 2 . Corresponding flow in each method of the above, similarly, the network device 400 shown in FIG. 4 may correspond to the corresponding subject in executing the method 200 of the embodiments of the present application, and the aforementioned and other operations and/or the various units in the network device 400 Or functions are respectively in order to implement the corresponding processes in each method in FIG. 2 , and are not repeated here for brevity.

The communication device of the embodiments of the present application is described above from the perspective of functional modules with reference to the accompanying drawings. It should be understood that the functional modules can be implemented in the form of hardware, can also be implemented by instructions in the form of software, and can also be implemented by a combination of hardware and software modules. Specifically, the steps of the method embodiments in the embodiments of the present application may be completed by hardware integrated logic circuits in the processor and/or instructions in the form of software, and the steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as hardware The execution of the decoding processor is completed, or the execution is completed by a combination of hardware and software modules in the decoding processor. Optionally, the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps in the above method embodiments in combination with its hardware.

For example, the processing unit and the communication unit referred to above may be implemented by a processor and a transceiver, respectively.

FIG. 5 is a schematic structural diagram of a communication device 500 according to an embodiment of the present application.

As shown in FIG. 5 , the communication device 500 may include a processor 510 .

The processor 510 may call and run a computer program from the memory to implement the methods in the embodiments of the present application.

As shown in FIG. 5 , the communication device 500 may also include a memory 520 .

Wherein, the memory 520 may be used to store instruction information, and may also be used to store codes, instructions, etc. executed by the processor 510 . The processor 510 may call and run a computer program from the memory 520 to implement the methods in the embodiments of the present application. The memory 520 may be a separate device independent of the processor 510 , or may be integrated in the processor 510 .

As shown in FIG. 5 , the communication device 500 may also include a transceiver 530 .

The processor 510 may control the transceiver 530 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices. Transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include antennas, and the number of the antennas may be one or more.

It should be understood that each component in the communication device 500 is connected through a bus system, wherein the bus system includes a power bus, a control bus and a status signal bus in addition to a data bus.

It should also be understood that the communication device 500 may be a terminal device of an embodiment of the present application, and the communication device 500 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application. The communication device 500 may correspond to the terminal device 300 in the embodiment of the present application, and may correspond to the corresponding subject in executing the method 200 according to the embodiment of the present application, which is not repeated here for brevity. Similarly, the communication device 500 may be the network device of the embodiments of the present application, and the communication device 500 may implement corresponding processes implemented by the network device in each method of the embodiments of the present application. That is to say, the communication device 500 in the embodiment of the present application may correspond to the network device 400 in the embodiment of the present application, and may correspond to the corresponding subject in executing the method 200 according to the embodiment of the present application, which is omitted here for brevity. Repeat.

In addition, the embodiment of the present application also provides a chip.

For example, the chip may be an integrated circuit chip, which has a signal processing capability, and can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The chip may also be referred to as a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip, or the like. Optionally, the chip can be applied to various communication devices, so that the communication device installed with the chip can execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application.

FIG. 6 is a schematic structural diagram of a chip 600 according to an embodiment of the present application.

As shown in FIG. 6 , the chip 600 includes a processor 610 .

The processor 610 may call and run a computer program from the memory to implement the methods in the embodiments of the present application.

As shown in FIG. 6 , the chip 600 may further include a memory 620 .

The processor 610 may call and run a computer program from the memory 620 to implement the methods in the embodiments of the present application. The memory 620 may be used to store instruction information, and may also be used to store codes, instructions and the like executed by the processor 610 . The memory 620 may be a separate device independent of the processor 610 , or may be integrated in the processor 610 .

As shown in FIG. 6 , the chip 600 may further include an input interface 630 .

The processor 610 may control the input interface 630 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.

As shown in FIG. 6 , the chip 600 may further include an output interface 640 .

The processor 610 can control the output interface 640 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

It should be understood that the chip 600 can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in the various methods in the embodiments of the present application, and can also implement the various methods in the embodiments of the present application. For the sake of brevity, the corresponding process implemented by the terminal device in FIG. 1 is not repeated here.

It should also be understood that various components in the chip 600 are connected through a bus system, wherein the bus system includes a power bus, a control bus and a status signal bus in addition to a data bus.

The processors referred to above may include, but are not limited to:

General-purpose processor, Digital Signal Processor (DSP), Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic devices, discrete gates Or transistor logic devices, discrete hardware components, and so on.

The processor may be used to implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of this application. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module may be located in random access memory, flash memory, read-only memory, programmable read-only memory or erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

The memory mentioned above includes but is not limited to:

Volatile memory and/or non-volatile memory. Among them, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which acts as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM).

It should be noted that the memory described herein is intended to include these and any other suitable types of memory.

Embodiments of the present application also provide a computer-readable storage medium for storing a computer program. The computer-readable storage medium stores one or more programs, the one or more programs including instructions that, when executed by a portable electronic device including a plurality of application programs, enable the portable electronic device to perform the implementation shown in method 200 example method. Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For brevity, here No longer. Optionally, the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. , for brevity, will not be repeated here.

The embodiments of the present application also provide a computer program product, including a computer program. Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. Repeat. Optionally, the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, in order to It is concise and will not be repeated here.

A computer program is also provided in the embodiments of the present application. When the computer program is executed by a computer, the computer can execute the method of the embodiment shown in method 200 . Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity. , and will not be repeated here. Optionally, the computer program can be applied to the mobile terminal/terminal device in the embodiments of the present application, and when the computer program runs on the computer, the computer program is implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. The corresponding process, for the sake of brevity, will not be repeated here.

An embodiment of the present application further provides a communication system, and the communication system may include the above-mentioned terminal equipment and network equipment to form the communication system 100 shown in FIG. 1 , which is not repeated here for brevity. It should be noted that the terms "system" and the like in this document may also be referred to as "network management architecture" or "network system" and the like.

It should also be understood that the terms used in the embodiments of the present application and the appended claims are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. For example, as used in the embodiments of this application and the appended claims, the singular forms "a," "the," "above," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. meaning.

Those skilled in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Experts may use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of the embodiments of the present application. If implemented in the form of a software functional unit and sold or used as a stand-alone product, it may be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products in essence, or the parts that make contributions to the prior art or the parts of the technical solutions, and the computer software products are stored in a storage medium , which includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the embodiments of the present application. The aforementioned storage medium includes: a U disk, a removable hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk and other media that can store program codes.

Those skilled in the art can also realize that, for the convenience and brevity of description, for the specific working process of the above-described systems, devices and units, reference may be made to the corresponding processes in the foregoing method embodiments, which will not be repeated here. In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other manners. For example, the division of units, modules or components in the apparatus embodiments described above is only a logical function division, and other division methods may be used in actual implementation. For example, multiple units, modules or components may be combined or integrated. To another system, or some units or modules or components can be ignored, or not implemented. For another example, the above-mentioned units/modules/components described as separate/display components may or may not be physically separated, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units/modules/components may be selected according to actual needs to achieve the purpose of the embodiments of the present application. Finally, it should be noted that the mutual coupling or direct coupling or communication connection shown or discussed above may be through some interfaces, indirect coupling or communication connection of devices or units, which may be electrical, mechanical or other forms .

The above contents are only specific implementations of the embodiments of the present application, but the protection scope of the embodiments of the present application is not limited thereto. Changes or substitutions should all be covered within the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application should be subject to the protection scope of the claims.

Claims

A wireless communication method, comprising:

Receive indication information for indicating physical uplink shared channel PUSCH transmission; wherein, the PUSCH is repeatedly transmitted based on the first SRS resource in the first sounding reference signal SRS resource set and the second SRS resource in the second SRS resource set, so Both the first SRS resource set and the second SRS resource set are used for codebook transmission, and when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different, the maximum number of layers of the PUSCH It does not exceed the minimum value of the number of ports of the first SRS resource and the number of ports of the second SRS resource.
The method according to claim 1, wherein the first SRS resource and the second SRS resource correspond to different beams or different receivers when the PUSCH is transmitted.
The method according to claim 1 or 2, wherein the PUSCH is not configured in full power mode 2.
The method according to claim 3, wherein all SRS resources in the first SRS resource set have the same number of ports, and all SRS resources in the second SRS resource set have the same number of ports.
The method according to claim 1 or 2, wherein the PUSCH is configured in full power mode 2.
The method according to claim 5, wherein the number of ports of all SRS resources in the first SRS resource set is the same or different, and the number of ports of all SRS resources in the second SRS resource set is the same or different.
The method according to any one of claims 1 to 6, wherein the first port number set of the SRS resources included in the first SRS resource set and the first port number set of the SRS resources included in the second SRS resource set The two port number sets are the same or different.
The method according to claim 7, wherein the first port number set and the second port number set are different, comprising: the first port number set and the second port number set are all different; Or, the first set of port numbers and the second set of port numbers are partially different; or, the number of ports in the first set of port numbers and the number of ports in the second set of port numbers are different.
The method according to any one of claims 1 to 8, wherein when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different, it indicates that an error occurs in the configuration of the network device for the terminal device .
The method according to any one of claims 1 to 8, wherein the indication information is used to indicate that the SRS resource on which the PUSCH is based is transmitted based on the first SRS resource and the second SRS resource.
The method according to claim 10, wherein the indication information is dynamic signaling or semi-static signaling; or the indication information is physical layer signaling or high layer signaling.
The method according to claim 10, wherein the indication information is carried in downlink control information DCI or radio resource control RRC signaling.
The method according to claim 12, wherein the indication information is SRS resource indication SRI information in the DCI or carried in a new indication field in the DCI.
The method according to any one of claims 1 to 13, wherein the number of ports of the first SRS resource is used to determine the first table, and the number of ports of the second SRS resource is used to determine the second table , each index in the first table and the second table respectively corresponds to a layer number and/or a precoding matrix indication.
The method according to claim 14, wherein the first layer number and/or the first precoding matrix for PUSCH transmission based on the first SRS resource is indicated as the layer corresponding to the first index in the first table number or precoding matrix indication, the second layer number and/or second precoding matrix indication for PUSCH transmission based on the second SRS resource is the number of layers or precoding matrix indication corresponding to the second index in the second table .
The method according to claim 15, wherein when both the first layer number and the second layer number exist, the first layer number is equal to the second layer number, and the first layer number is equal to the second layer number. Neither the number nor the number of the second layers exceeds the minimum value.
The method according to claim 15, wherein when there is only one layer in the first number of layers and the second number of layers, the number of layers for PUSCH transmission based on the first SRS resource and the number of layers based on the number of layers The number of layers for performing PUSCH transmission on the second SRS resource is the one layer number, and the one layer number does not exceed the minimum value.
The method according to claim 15, wherein the first port number set of the SRS resources included in the first SRS resource set includes a plurality of port numbers, and the table corresponding to the port numbers of the first SRS resource When the number of bits occupied by the index is less than the number of bits occupied by the index in the table corresponding to the maximum port number in the first port number set, the first index corresponds to the maximum port number in the first port number set. The number of bits occupied by the index in the table of , is filled with 0s, otherwise, the first index is not filled with 0s.
The method according to claim 15, wherein the second set of port numbers of the SRS resources included in the second SRS resource set includes a plurality of port numbers, and the table corresponding to the port numbers of the second SRS resources When the number of bits occupied by the index of the second port number is less than the number of bits occupied by the index in the table corresponding to the maximum port number in the second port number set, the second index corresponds to the maximum port number in the second port number set. The number of bits occupied by the index in the table of , is filled with 0s, otherwise, the second index is not filled with 0s.
The method according to claim 15, wherein the indication information includes the first index and the second index.
The method of claim 14, wherein the PUSCH is not configured in full power mode 2, and the first table and the second table are the same.
The method according to claim 14, wherein the PUSCH is configured as full power mode 2, and when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different, the first The table is different from the second table.
The method according to any one of claims 1 to 22, wherein the indication information is used to indicate information of time-frequency domain resources of the PUSCH.
A wireless communication method, comprising:

Sending indication information for indicating physical uplink shared channel PUSCH transmission; wherein, the PUSCH is repeatedly transmitted based on the first SRS resource in the first sounding reference signal SRS resource set and the second SRS resource in the second SRS resource set, so Both the first SRS resource set and the second SRS resource set are used for codebook transmission, and when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different, the maximum number of layers of the PUSCH It does not exceed the minimum value of the number of ports of the first SRS resource and the number of ports of the second SRS resource.
The method according to claim 24, wherein the first SRS resource and the second SRS resource correspond to different beams or different receiving ends when the PUSCH is transmitted.
The method according to claim 24 or 25, wherein the PUSCH is not configured in full power mode 2.
The method according to claim 26, wherein all SRS resources in the first SRS resource set have the same number of ports, and all SRS resources in the second SRS resource set have the same number of ports.
The method of claim 24 or 25, wherein the PUSCH is configured in full power mode 2.
The method according to claim 28, wherein the number of ports of all SRS resources in the first SRS resource set is the same or different, and the number of ports of all SRS resources in the second SRS resource set is the same or different.
The method according to any one of claims 24 to 29, wherein the first port number set of the SRS resources included in the first SRS resource set and the first port number set of the SRS resources included in the second SRS resource set The two port number sets are the same or different.
The method according to claim 30, wherein the first port number set and the second port number set are different, comprising: the first port number set and the second port number set are all different; Or, the first set of port numbers and the second set of port numbers are partially different; or, the number of ports in the first set of port numbers and the number of ports in the second set of port numbers are different.
The method according to any one of claims 24 to 31, wherein when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different, it indicates that an error occurs in the configuration of the network device for the terminal device .
The method according to any one of claims 24 to 31, wherein the indication information is used to indicate that the SRS resource on which the PUSCH is based is transmitted based on the first SRS resource and the second SRS resource.
The method according to claim 33, wherein the indication information is dynamic signaling or semi-static signaling; or the indication information is physical layer signaling or higher layer signaling.
The method according to claim 33, wherein the indication information is carried in downlink control information DCI or radio resource control RRC signaling.
The method according to claim 35, wherein the indication information is SRS resource indication SRI information in the DCI or carried in a new indication field in the DCI.
The method according to any one of claims 24 to 36, wherein the number of ports of the first SRS resource is used to determine the first table, and the number of ports of the second SRS resource is used to determine the second table , each index in the first table and the second table respectively corresponds to a layer number and/or a precoding matrix indication.
The method according to claim 37, wherein the first layer number and/or the first precoding matrix for PUSCH transmission based on the first SRS resource is indicated as the layer corresponding to the first index in the first table number or precoding matrix indication, the second layer number and/or second precoding matrix indication for PUSCH transmission based on the second SRS resource is the number of layers or precoding matrix indication corresponding to the second index in the second table .
The method according to claim 38, wherein when both the first layer number and the second layer number exist, the first layer number is equal to the second layer number, and the first layer number is equal to the second layer number. Neither the number nor the number of the second layers exceeds the minimum value.
The method according to claim 38, wherein when there is only one layer in the first number of layers and the second number of layers, the number of layers for PUSCH transmission based on the first SRS resource and the number of layers based on the number of layers The number of layers for performing PUSCH transmission on the second SRS resource is the one layer number, and the one layer number does not exceed the minimum value.
The method according to claim 38, wherein the first set of port numbers of the SRS resources included in the first SRS resource set includes a plurality of port numbers, and the table corresponding to the port numbers of the first SRS resources When the number of bits occupied by the index is less than the number of bits occupied by the index in the table corresponding to the maximum port number in the first port number set, the first index corresponds to the maximum port number in the first port number set. The number of bits occupied by the index in the table of , is filled with 0s, otherwise, the first index is not filled with 0s.
The method according to claim 38, wherein the second port number set of the SRS resources included in the second SRS resource set includes a plurality of port numbers, and the table corresponding to the port numbers of the second SRS resource When the number of bits occupied by the index of the second port number is less than the number of bits occupied by the index in the table corresponding to the maximum port number in the second port number set, the second index corresponds to the maximum port number in the second port number set. The number of bits occupied by the index in the table of , is filled with 0s, otherwise, the second index is not filled with 0s.
The method of claim 38, wherein the indication information includes the first index and the second index.
The method of claim 37, wherein the PUSCH is not configured in full power mode 2, and the first table and the second table are the same.
The method according to claim 37, wherein the PUSCH is configured as full power mode 2, and when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different, the first The table is different from the second table.
The method according to any one of claims 24 to 45, wherein the indication information is used to indicate information of time-frequency domain resources of the PUSCH.
A terminal device, characterized in that it includes:

a communication unit, configured to receive indication information for indicating physical uplink shared channel PUSCH transmission; wherein the PUSCH is based on the first SRS resource in the first sounding reference signal SRS resource set and the second SRS resource in the second SRS resource set respectively Repeated transmission is performed, the first SRS resource set and the second SRS resource set are both used for codebook transmission, and when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different, the The maximum number of layers of PUSCH does not exceed the minimum value among the number of ports of the first SRS resource and the number of ports of the second SRS resource.
A network device, characterized in that it includes:

a communication unit, configured to send indication information for indicating physical uplink shared channel PUSCH transmission; wherein the PUSCH is based on the first SRS resource in the first sounding reference signal SRS resource set and the second SRS resource in the second SRS resource set respectively Repeated transmission is performed, the first SRS resource set and the second SRS resource set are both used for codebook transmission, and when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different, the The maximum number of layers of PUSCH does not exceed the minimum value among the number of ports of the first SRS resource and the number of ports of the second SRS resource.
A terminal device, characterized in that it includes:

A processor and a memory, the memory for storing a computer program, the processor for invoking and running the computer program stored in the memory to perform the method of any one of claims 1 to 23.
A network device, characterized in that it includes:

A processor and a memory, the memory for storing a computer program, the processor for invoking and running the computer program stored in the memory to perform the method of any one of claims 24 to 46.
A chip, characterized in that it includes:

A processor for invoking and running a computer program from a memory so that a device equipped with the chip performs the method as claimed in any one of claims 1 to 23 or as described in any one of claims 24 to 26 Methods.
A computer-readable storage medium, characterized in that it is used for storing a computer program, and the computer program causes a computer to execute the method according to any one of claims 1 to 23 or any one of claims 24 to 26. the method described.
A computer program product comprising computer program instructions that cause a computer to perform the method of any one of claims 1 to 23 or the method of any one of claims 24 to 26 Methods.
A computer program, characterized in that the computer program causes a computer to perform the method as claimed in any one of claims 1 to 23 or the method as claimed in any one of claims 24 to 26 .