CN116547935A

CN116547935A - Wireless communication method, terminal device and network device

Info

Publication number: CN116547935A
Application number: CN202180076910.6A
Authority: CN
Inventors: 方昀; 陈文洪; 史志华; 黄莹沛; 田杰娇
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-04-02
Filing date: 2021-09-18
Publication date: 2023-08-04
Also published as: WO2022205459A1; WO2022205797A1

Abstract

The embodiment of the application provides a wireless communication method, terminal equipment and network equipment, wherein the method comprises the following steps: receiving indication information for indicating PUSCH transmission; and the PUSCH is used for carrying out repeated transmission based on a first SRS resource in a first SRS resource set and a second SRS resource in a second SRS resource set respectively, wherein the first SRS resource set and the second SRS resource set are both used for codebook transmission, and when the port number of the first SRS resource is different from the port number of the second SRS resource, the maximum layer number of the PUSCH is not more than the minimum value of the port number of the first SRS resource and the port number of the second SRS resource. According to the scheme provided by the application, the terminal equipment can realize the repeated transmission of the PUSCH, and in addition, when the uplink repeated transmission of multiple TRPs is carried out, the number of layers selected by the terminal equipment can be supported by the terminal equipment, so that the communication quality is ensured.

Description

Wireless communication method, terminal device and network device

Technical Field

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

Background

By R16, the NR system only allows the base station to configure at most one SRS resource set for the UE, where at most two SRS resources may be configured in the SRS resource set, and the two SRS resources include the same SRS antenna port number.

In release 17 (R17), a scheme of performing repeated transmission of a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) based on multiple transmission reception points (Transmission Reception Point, TRP) is introduced, specifically, the terminal device may be instructed to perform repeated transmission of the PUSCH by downlink control information (Downlink Control Information, DCI), and further, the reliability of the PUSCH may be enhanced by different TRP.

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

Disclosure of Invention

The embodiment of the application provides a wireless communication method, terminal equipment and network equipment, which can enable the terminal equipment to realize the repeated transmission of a PUSCH, and in addition, when uplink repeated transmission of multiple TRPs is carried out, the number of layers selected by the terminal equipment can be supported by the terminal equipment, so that the communication quality is ensured.

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

receiving indication information for indicating the transmission of a Physical Uplink Shared Channel (PUSCH); the PUSCH is repeatedly transmitted based on a first SRS resource in a first sounding reference signal SRS resource set and a second SRS resource in a second SRS resource set, wherein the first SRS resource set and the second SRS resource set are both used for codebook transmission, and when the port number of the first SRS resource and the port number of the second SRS resource are different, the maximum layer number of the PUSCH does not exceed the minimum value of the port number of the first SRS resource and the port number of the second SRS resource.

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

transmitting indication information for indicating the transmission of a Physical Uplink Shared Channel (PUSCH); the PUSCH is repeatedly transmitted based on a first SRS resource in a first sounding reference signal SRS resource set and a second SRS resource in a second SRS resource set, wherein the first SRS resource set and the second SRS resource set are both used for codebook transmission, and when the port number of the first SRS resource and the port number of the second SRS resource are different, the maximum layer number of the PUSCH does not exceed the minimum value of the port number of the first SRS resource and the port number of the second SRS resource.

In a third aspect, the present application provides a terminal device for performing the method of the first aspect or each implementation manner thereof. 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 one implementation, the terminal device may include a transmitting unit and/or a receiving unit. The transmitting unit is configured to perform a function related to transmission, and the receiving unit is configured to perform a function related to reception. For example, the transmitting 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 performing the method of the second aspect or each implementation manner thereof. In particular, the network device comprises functional modules for performing the method of the second aspect or implementations thereof described above.

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

In one implementation, the network device may include a transmitting unit and/or a receiving unit. The transmitting unit is configured to perform a function related to transmission, and the receiving unit is configured to perform a function related to reception. For example, the transmitting 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 transmitting unit may be an output circuit or an interface of the communication chip.

In a fifth aspect, the present application provides a terminal device comprising a processor and a memory. The memory is configured to store a computer program, and the processor is configured to invoke and execute the computer program stored in the memory, so as to perform the method in the 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 separate from the processor.

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

In a sixth aspect, the present application provides a network device comprising 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 to execute the method in the second aspect or various implementation manners thereof.

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

In a seventh aspect, the present application provides a chip for implementing the method in any one of the first aspect to the second aspect or each implementation thereof. Specifically, the chip includes: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method as in any one of the first to second aspects or implementations thereof described above.

In an eighth aspect, the present application provides a computer-readable storage medium storing a computer program for causing a computer to perform the method of any one of the above first to second aspects or implementations thereof.

In a ninth aspect, the present application provides a computer program product comprising computer program instructions for causing a computer to perform the method of any one of the first to second aspects or implementations thereof.

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

Based on the above technical solution, the terminal device can realize repeated transmission of PUSCH, and in addition, when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different in uplink repeated transmission of multiple TRPs, the number of ports selected by the terminal device can be supported by the terminal device by restricting the maximum number of layers of the PUSCH not to exceed the minimum value of the number of ports of the first SRS resource and the number of ports of the second SRS resource, thereby ensuring communication quality.

Drawings

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

Fig. 2 is a schematic flow chart of a wireless communication method provided in an embodiment of the present application.

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

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

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

Fig. 6 is a schematic block diagram of a chip provided in an embodiment of the present application.

Detailed Description

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

Fig. 1 is a schematic diagram of an application scenario according to an embodiment of the present application.

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

It should be understood that the present embodiments are illustrated by way of example only with respect to communication system 100, but the present embodiments are not limited thereto. That is, the technical solution of the embodiment of the present application may be applied to various communication systems, for example: long term evolution (Long Term Evolution, LTE) system, LTE time division duplex (Time Division Duplex, TDD), universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), internet of things (Internet of Things, ioT) system, narrowband internet of things (Narrow Band Internet of Things, NB-IoT) system, enhanced Machine-type-Type Communications (eMTC) system, 5G communication system (also referred to 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 in communication with the terminal device 110. The access network device may provide communication coverage for a particular geographic area and may communicate with terminal devices 110 (e.g., 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 a NR system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device 120 may be a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

Terminal device 110 may be any terminal device including, but not limited to, a terminal device that employs a wired or wireless connection with network device 120 or other terminal devices.

For example, the terminal device 110 may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, an IoT device, a satellite handset, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handset with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolution network, etc.

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

The wireless communication system 100 may further comprise a core network device 130 in communication with the base station, which core network device 130 may be a 5G core,5gc device, e.g. an access and mobility management function (Access and Mobility Management Function, AMF), further e.g. an authentication server function (Authentication Server Function, AUSF), further e.g. a user plane function (User Plane Function, UPF), further e.g. a session management function (Session Management Function, SMF). Optionally, the core network device 130 may also be a packet core evolution (Evolved Packet Core, EPC) device of the LTE network, for example a session management function+a data gateway (Session Management Function + Core Packet Gateway, smf+pgw-C) device of the core network. It should be appreciated that SMF+PGW-C may perform the functions performed by both SMF and PGW-C. In the network evolution process, the core network device may also call other names, or form a new network entity by dividing the functions of the core network, which is not limited in this embodiment of the present application.

Communication may also be achieved by establishing connections between various functional units in the communication system 100 through a next generation Network (NG) interface.

For example, the terminal device establishes an air interface connection with the access network device through an NR interface, and is used for transmitting user plane data and control plane signaling; the terminal equipment can establish control plane signaling connection with AMF through NG interface 1 (N1 for short); an access network device, such as a next generation radio access base station (gNB), can establish a user plane data connection with a UPF through an NG interface 3 (N3 for short); the access network equipment can establish control plane signaling connection with AMF through NG interface 2 (N2 for short); the UPF can establish control plane signaling connection with the SMF through an NG interface 4 (N4 for short); the UPF can interact user plane data with the data network through an NG interface 6 (N6 for short); the AMF may establish a control plane signaling connection with the SMF through NG interface 11 (N11 for short); the SMF may establish a control plane signaling connection with the PCF via NG interface 7 (N7 for short).

Fig. 1 exemplarily illustrates one base station, one core network device, and two terminal devices, alternatively, the wireless communication system 100 may include a plurality of base station devices and each base station may include other number of terminal devices within a coverage area, which is not limited in the embodiment of the present application.

It should be understood that devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices. 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 communication functions, where the network device 120 and the terminal device 110 may be the devices described above, and are not described herein again; the communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

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

The embodiment of the application provides a wireless communication method which can be used for determining a time slot for transmitting SRS.

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

The sounding reference signal (Sounding Reference Signal, SRS) signal is an important reference signal in 5G/NR systems and is widely used in various functions in NR systems, for example, SRS may be used in the following scenarios:

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

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

3. for an antenna switching (Antenna Switching) function;

4. a function (UE sounding procedure between component carriers) for carrier switching (Carrier Switching);

5. for a positioning function;

6. cooperating with codebook-based uplink transmission;

7. in conjunction with Non-Codebook based uplink transmissions.

The network device may configure one terminal device with one or more SRS Resource sets (SRS Resource sets), and each SRS Resource set may configure 1 or more SRS resources.

SRS transmission can be classified into Periodic (Periodic), semi-persistent (Semi-persistent), and Aperiodic (Aperiodic).

The periodic SRS refers to a periodically transmitted SRS, the period and the slot offset of which are configured by RRC signaling, and once the terminal device receives the corresponding configuration parameters, the terminal device transmits the SRS according to a certain period until the RRC configuration fails. The spatially related 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 by an implicit means. For example, the terminal device determines a transmission beam of the periodic SRS according to the indicated CSI-RS/SSB. For another example, the terminal device may determine a transmit beam for transmitting SRS on the SRS resource through spatially related information of the SRS resource.

The period and slot offset (slot offset) of the semi-persistent SRS is configured by RRC signaling, but its activation and deactivation signaling is carried over MAC CEs. The terminal device starts transmitting SRS after receiving the activation signaling until receiving the deactivation signaling. The spatially related information (transmit beam) of the semi-persistent SRS is carried together by the MAC CE that activates the SRS.

In the NE system, SRS management and configuration are performed in the manner of SRS resource set. Depending on the use, the base station may configure the UE with multiple SRS resource sets, each SRS resource set including one or more SRS resources, each SRS resource containing 1, 2, or 4 ports. The configuration information of each SRS resource set includes a usage indication, which may be configured as beam management (beam management), codebook (codebook), non-codebook (non-codebook) or antenna switching (antenna switching), and is used for uplink beam management, uplink channel information acquisition based on the codebook, uplink channel information acquisition based on a non-codebook uplink transmission scheme, and downlink channel information acquisition based on SRS antenna switching, respectively.

In order to facilitate understanding of the scheme of the present application, the following describes related content of uplink transmission based on a codebook. The codebook-based uplink transmission may also be referred to as codebook transmission. The uplink transmission based on the codebook is a multi-antenna transmission technique for determining TPMI of the uplink transmission based on the fixed codebook. The uplink transmission flow based on the codebook in the NR system is as follows:

1. The UE transmits SRS to the base station on a set of SRS resources acquired through channel state information (Channel State Information, CSI) for codebook-based uplink transmission.

2. And the base station performs uplink channel detection according to the SRS sent by the UE, performs resource scheduling on the UE, and determines SRS resources corresponding to uplink transmission based on a codebook, the number of layers of the uplink transmission and a precoding matrix. Further, the UE may determine a modulation and coding strategy (Modulation and Coding Scheme, MCS) of the uplink transmission according to the precoding matrix and the channel information, and then the base station allocates PUSCH resources and notifies the UE of corresponding MCS, TPMI, layer Indicator (LI), and SRS resource Indicator (Sounding Reference Signal Resource Indicator, SRI).

3. The UE carries out modulation coding on the data according to the MCS indicated by the base station, and determines a precoding matrix and a transmission layer number used in data transmission by utilizing SRI, TPMI and LI, so as to carry out precoding and transmission on the data, and a demodulation pilot signal of the PUSCH and the data of the PUSCH adopt the same precoding mode.

4. And the base station estimates an uplink channel according to the demodulation pilot frequency channel and performs data detection.

In R16 and before, the NR system allows the base station to configure at most one SRS resource set acquired through CSI for codebook-based uplink transmission for the UE, where at most two SRS resources may be configured in the SRS resource set, and the two SRS resources include the same SRS antenna port number. Since the enhancement of PUSCH based on MTRP is introduced in R17, starting from R17, the NR system allows the base station to configure at most two SRS resource sets for CSI acquisition based on uplink transmission of a codebook for the UE, and no limitation is imposed on whether the number of resources that can be contained in the two SRS resource sets is the same in R17. The base station indicates SRS resources corresponding to the PUSCH to the UE through an SRI domain (field) in the DCI so as to assist the UE in determining antennas, analog beamforming and the like used for PUSCH transmission according to the SRS resources 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 transmissions may reduce the overhead of the SRI. Therefore, the size of the SRI information for indicating the SRS resource corresponding to the PUSCH in the uplink scheduling information depends on the number of SRS resources configured for uplink transmission corresponding to the PUSCH. When the base station configures only one SRS resource for one uplink transmission of the UE, the PUSCH in the uplink transmission corresponds to the SRS resource, and the SRI information field may not exist in the uplink scheduling information.

In R15, for uplink transmission based on the codebook, the base station may configure an SRS resource set for the terminal, where the SRS resource set is used as a "codebook", and at most includes two SRS resources, and the number of antenna ports of all SRS resources is the same. The subset of codebooks that a base station can configure for a terminal depends on the coherent transmission capabilities of the terminal. The R15 protocol specifies that coherent transmission capabilities are non-coherent terminals (NC-UEs) and partially coherent terminals (PC-UEs) that allow configuration to use only a subset of the codebook. In combination with the PUSCH power control rule, these terminals cannot reach full power when transmitting with low rank (rank). In practical systems, the signal-to-noise ratio of terminals located at the cell edge is generally low, and in order to ensure signal quality, the base station often schedules the terminals for low rank transmission and transmits with as much transmission power as possible. Failure to fully transmit power will affect the performance of terminals in areas of low signal to noise ratio and thus cell coverage.

The inability of NC-UEs and PC-UEs to achieve full power transmission at low ranks is due to codebook subset restriction and PUSCH power control rules. Full power transmission of PUSCH may be achieved by enhancing codebook subset restriction or enhancing PUSCH power control rules. For terminals where each Power Amplifier (PA) can transmit at full power, R16 allows the base station to configure the terminal with a particular full power transmission Mode, referred to as Mode0 (Mode 0) full power transmission Mode. If one or more PAs of the terminal are not capable of full power transmission, mode0 full power transmission is no longer applicable. In order that all or part of the PA may not be able to achieve full power transmission, R16 introduces two full power transmission modes, mode1 (Mode 1) and Mode2 (Mode 2).

Mode 2 adopts the same restriction of codebook subset configuration as R15, and allows incoherent or partially coherent terminals to achieve full power transmission of PUSCH through antenna virtualization or PA of full power transmission using a specific precoding matrix through a new SRS resource configuration mode and a new PUSCH power control rule. Mode 2 allows the terminal to report the precoding matrix that can be used for full power transmission, and the terminal can use the precoding matrix to perform full power transmission of the PUSCH.

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

The following describes a scheme for determining TPMI in a downlink control channel with reference to tables 1 and 2.

Table 1: 4-port TPMI TRI table

As shown in table 1, for the SRS resource of 4 ports, based on the index indicated by the network device, the corresponding layer number and TPMI may 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 layer number and TPMI may be determined according to the corresponding codebook subset.

Based on the above analysis, the NR system only allows the base station to configure at most one SRS resource set for the UE until R16 is cut, where at most two SRS resources can be configured in the SRS resource set, and the two SRS resources include the same SRS antenna port number. In release 17 (R17), a scheme of performing PUSCH retransmission based on multiple TRPs is introduced, specifically, the terminal device may be instructed to perform PUSCH retransmission through DCI, and further, the reliability of PUSCH may be enhanced through different TRPs. In other words, the base station is allowed to configure a plurality of SRS resource sets for the UE at most, and each SRS resource set may configure a plurality of SRS resources at most, so that the UE may perform uplink retransmission based on the SRS resources in the plurality of SRS resource sets. However, when the maximum port numbers in the plurality of SRS resource sets are different, the port numbers of SRS resources in the plurality of SRS resource sets for uplink transmission may be different, and thus, there may be a port number that is not supported by the UE in the port numbers of the SRS resources in the plurality of SRS resource sets for uplink transmission, so that the number of layers selected by the terminal device may not be supported by the terminal device, and communication quality may not be ensured.

Based on this, the embodiment of the application provides a wireless communication method, a terminal device and a network device, which can enable the terminal device to realize repeated transmission of a PUSCH, and in addition, when uplink repeated transmission of multiple TRPs is performed, the number of layers selected by the terminal device can be supported by the terminal device, so that the communication quality is ensured.

Fig. 2 shows a schematic flow chart of a wireless communication method 200 according to an embodiment of the present application, which method 200 may be performed interactively by a terminal device and a network device. The terminal device shown in fig. 2 may be a terminal device as shown in fig. 1, and the network device shown in fig. 2 may be an access network device as shown in fig. 1.

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

s210, receiving indication information for indicating transmission of a Physical Uplink Shared Channel (PUSCH); the PUSCH is repeatedly transmitted based on a first SRS resource in a first sounding reference signal SRS resource set and a second SRS resource in a second SRS resource set, wherein the first SRS resource set and the second SRS resource set are both used for codebook transmission, and when the port number of the first SRS resource and the port number of the second SRS resource are different, the maximum layer number of the PUSCH does not exceed the minimum value of the port number of the first SRS resource and the port number 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, respectively, e.g., the PUSCH may be repeatedly transmitted based on SRS resources in multiple two 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 point transmission may also be performed based on the first SRS resource or the second SRS resource, which is not limited in this application.

In some embodiments, the first SRS resource and the second SRS resource are used for corresponding to different beams or different receiving ends when transmitting the PUSCH.

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

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

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

In other words, when the PUSCH is not configured in the 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 to full power mode 2.

In some implementations, the port numbers of all SRS resources in the first set of SRS resources are the same or different and the port numbers of all SRS resources in the second set of SRS resources are the same or different.

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

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

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

In some implementations, the first set of port numbers and the second set of port numbers are different, including: the first set of port numbers and the second set of port numbers are all different; alternatively, the first port number set and the second port number set are partially different; or, the number of ports in the first port number set is different from the number of ports in the second port number set.

In some embodiments, the number of ports of the first SRS resource and the number of ports of the second SRS resource are different to simultaneously characterize that the configuration of the network device for the terminal device is wrong.

In some embodiments, the indication information is used to indicate that the PUSCH is based on the first SRS resource and the second SRS resource when transmitting the 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 indicates SRI information for SRS resources in the DCI or is carried in a new indication field in the DCI. Alternatively, the one 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 a first table, the port number of the second SRS resource is used to determine a second table, and each index in the first table and the second table corresponds to one layer number and/or one precoding matrix indicator, respectively.

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

In some implementations, the number of bits occupied by the first index is determined according to at least one of: the maximum port number of all SRS resources of the first SRS resource set, the maximum port number of all SRS resources of the second SRS resource set, all layers, all precoding matrix indications.

Optionally, the number of bits occupied by the first index is determined according to at least one of: and the maximum port number, all layer numbers and all precoding matrix indications in all port numbers of all SRS resources of the first SRS resource set and all port numbers of all SRS resources of the second SRS resource set.

Taking the determination of the number of bits occupied by the first index according to the number of all ports of all SRS resources in the first SRS resource set and the maximum number of ports in all SRS resources in the second SRS resource set as an example, if the number of ports of all SRS resources in the first SRS resource set and the maximum number of ports in all SRS resources in the second SRS resource set are 2, the bits occupied by the first index may be determined based on a TPMI TRI table of 2 ports, and if the number of ports of all SRS resources in the first SRS resource set and the maximum number of ports in all SRS resources in the second SRS resource set are 4, the bits occupied by the first index may be determined based on a TPMI TRI table of 4 ports.

Taking the determination of the number of bits occupied by the first index according to all layers and all precoding matrix indications as an example, the number of bits occupied by the first index can indicate any combination of the layers and the precoding matrix indications.

Optionally, the set of all layers includes at least one of: based on the number of layers that can be transmitted when the first SRS resource set is transmitted, based on the number of layers that can be transmitted when the second SRS resource set is transmitted, based on the number of layers that can be transmitted when the first SRS resource set and the second SRS resource set are transmitted.

In some implementations, the number of bits occupied by the second index is determined according to at least one of: the maximum port number of all SRS resources of the first SRS resource set, the maximum port number of all SRS resources of the second SRS resource set, all layers, all precoding matrix indications, a layer number set supported by the second SRS resource set, and a precoding matrix indication set corresponding to the layer number with the largest precoding matrix indication in the layer number set supported by the second SRS resource set.

Optionally, the number of bits occupied by the first index is determined according to at least one of: the maximum port number, all layers, all precoding matrix indications, the layer number set supported by the second SRS resource set, and the precoding matrix indication set corresponding to the layer number with the greatest precoding matrix indication in the layer number set supported by the second SRS resource set.

In some implementations, the maximum number of ports included in the first SRS resource set is greater than or equal to the maximum number of ports included in the second SRS resource set, and the number of bits occupied by the first index is determined according to at least one of: and the maximum port number, all the layers and all the precoding matrixes of all the SRS resources of the first SRS resource set are indicated.

Optionally, the maximum port number contained in the first SRS resource set is greater than or equal to the maximum port number contained in the second SRS resource set.

In some implementations, the identification of the first set of SRS resources is less than the identification of the second set of SRS resources.

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 neither the first number of layers nor the second number of layers exceeds the minimum value.

In some implementations, when only one layer exists in the first layer number and the second layer number, both the layer number for PUSCH transmission based on the first SRS resource and the layer number for PUSCH transmission based on the second SRS resource are the one layer number, and the one layer number does not exceed the minimum value.

In some implementations, the first port number set of SRS resources included in the first SRS resource set includes a plurality of port numbers, and when a bit number occupied by an index in a table corresponding to a port number of the first SRS resource is smaller than a bit number occupied by an index in a table corresponding to a maximum port number in the first port number set, the first index performs a 0-supplementing operation according to the bit number occupied by the index in the table corresponding to the maximum port number in the first port number set, otherwise, the first index is not subjected to the 0-supplementing operation.

In some implementations, the second port number set of SRS resources included in the second SRS resource set includes a plurality of port numbers, and when a bit number occupied by an index in a table corresponding to a port number of the second SRS resource is smaller than a bit number occupied by an index in a table corresponding to a maximum port number in the second port number set, the second index performs a 0-supplementing operation according to the bit number occupied by the index in the table corresponding to the maximum port number in the second port number set, otherwise, the second index is not subjected to the 0-supplementing operation.

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, the first table and the second table are the same.

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

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

The following describes aspects of the present application in connection with specific embodiments.

Example 1:

in this embodiment, the PUSCH is not configured for full power mode 2.

Case1：

If the PUSCH is not configured in full power mode 2, the SRS ports of both SRS resource sets are the same.

Case2：

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

A. at this time, the maximum supportable layer number is 2, that is, when the DCI indicates TPMI and TRI of SRS resource 1, the indication of TPMI and TRI needs to be obtained according to the TPMI TRI table with the maximum layer number of 2 and the port number of 4.

B. The terminal considers such a configuration to be erroneous.

Example 2:

in this embodiment, the PUSCH is configured in full power mode 2. When the PUSCH is configured in the full power mode 2, one SRS resource set may support SRS resources with different port numbers.

Case 1:

if the PUSCH is configured in the 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, for example, the port number set of the SRS resources configured in the SRS resource set 1 is {2,1}, and the port number of the SRS resources configured in the SRS resource set 2 is {2,4}. The method is treated by the following cases:

A. the terminal considers that such configuration has an error and does not do the processing.

B. The maximum port number of the terminal acquired SRS resource set 1 is 2, and the maximum port number of the terminal acquired SRS resource set 2 is 4, so that the maximum layer number which can be supported by the terminal when multi-beam transmission is carried out based on two SRS resource sets is 2. When the network side instructs the resource set 1 to perform PUSCH transmission based on the 2-port SRS resource, the TPMI value is filled in according to the TPMI TRI table (for example, table 2) of the 2-port. The indication resource set 2 fills in TPMI values according to a TPMI TRI table (e.g., table 1) of 4 ports if PUSCH transmission is performed based on SRS resources of 4 ports, but the number of supported layers cannot exceed the maximum number of supportable layers 2.

Case 2:

if the PUSCH is configured in the 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, for example, the port number set of the SRS resources configured in the SRS resource set 1 is {2}, and the port number of the SRS resources configured in the SRS resource set 2 is {2,4}. The method is treated by the following cases:

Case 3:

B. The maximum port number of the terminal acquired SRS resource set 1 is 2, and the maximum port number of the terminal acquired SRS resource set 2 is 4, so that the maximum layer number which can be supported by the terminal when multi-beam transmission is carried out based on two SRS resource sets is 2. When the network side instructs the resource set 1 to perform PUSCH transmission based on the 2-port SRS resource, the TPMI value is filled in according to the TPMI TRI table (for example, table 2) of the 2-port. When the instruction resource set 2 performs PUSCH transmission based on the 2-port SRS resource, the TPMI value is filled according to the 2-port SRS table, and the 4-port operation of supplementing 0 is performed in front according to the 4-port because the bit field size occupied by the 2-port TPMI TRI table and the 4-port TPMI TRI table (for example, table 1) are different, but the number of supported layers cannot exceed the maximum number of supportable layers 2.

Case 4:

if the PUSCH is configured in the full power mode 2, the port number set of the SRS resources configured in the SRS resource set 1 and the port number set of the SRS resources configured in the SRS resource set 2 are the same, for example, the port number set of the SRS resources configured in the SRS resource set 1 is {2,4}, and the port number of the SRS resources configured in the SRS resource set 2 is {2,4}. The method is treated by the following cases:

A. The maximum port number of the terminal acquired SRS resource set 1 is 4, and the maximum port number of the terminal acquired SRS resource set 2 is 4, so that the maximum layer number which can be supported by the terminal when multi-beam transmission is carried out based on two SRS resource sets is 4. When the network side instructs the resource set 1 to perform PUSCH transmission based on the 2-port SRS resource, the TPMI value is filled in according to the TPMI TRI table (for example, table 2) of the 2-port. When PUSCH transmission is performed based on the 4-port SRS resource, the indication resource set 2 fills in the TPMI value according to the 4-port TPMI TRI table (for example, table 1), but the number of supported layers cannot exceed the number of ports of the SRS resource corresponding to the two SRS resource sets indicated in the DCI.

B. The maximum port number of the terminal acquired SRS resource set 1 is 4, and the maximum port number of the terminal acquired SRS resource set 2 is 4, so that the maximum layer number which can be supported by the terminal when multi-beam transmission is carried out based on two SRS resource sets is 4. When the network side indicates that the resource set 1 and the resource set 2 carry out PUSCH transmission based on the SRS resources of the 4 ports, at the moment, the TPMI values respectively corresponding to the two resource sets are filled in according to the SRS table of the 4 ports.

The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present application within the scope of the technical concept of the present application, and all the simple modifications belong to the protection scope of the present application. For example, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in detail. As another example, any combination of the various embodiments of the present application may be made without departing from the spirit of the present application, which should also be considered as disclosed herein.

It should be further understood that, in the various method embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present application. Further, in the embodiments of the present application, the terms "downlink" and "uplink" are used to indicate a transmission direction of a signal or data, where "downlink" is used to indicate that the transmission direction of the signal or data is a first direction of a user equipment transmitted from a station to a cell, and "uplink" is used to indicate that the transmission direction of the signal or data is a second direction of a user equipment transmitted from a cell to a station, for example, "downlink signal" indicates that the transmission direction of the signal is the first direction. In addition, in the embodiment of the present application, the term "and/or" is merely an association relationship describing the association object, which means that three relationships may exist. Specifically, a and/or B may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

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

Fig. 3 is a schematic block diagram of a terminal device 300 of 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 a PUSCH transmission of a physical uplink shared channel; the PUSCH is repeatedly transmitted based on a first SRS resource in a first sounding reference signal SRS resource set and a second SRS resource in a second SRS resource set, wherein the first SRS resource set and the second SRS resource set are both used for codebook transmission, and when the port number of the first SRS resource and the port number of the second SRS resource are different, the maximum layer number of the PUSCH does not exceed the minimum value of the port number of the first SRS resource and the port number of the second SRS resource.

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

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

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

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

In some embodiments, the first set of port numbers and the second set of port numbers are different, comprising: the first set of port numbers and the second set of port numbers are all different; alternatively, the first port number set and the second port number set are partially different; or, the number of ports in the first port number set is different from the number of ports in the second port number set.

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 indicates SRI information for SRS resources in the DCI or is carried in a new indication field in the DCI.

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

In some embodiments, the number of bits occupied by the first index is determined according to at least one of: the maximum port number of all SRS resources of the first SRS resource set, the maximum port number of all SRS resources of the second SRS resource set, all layers, all precoding matrix indications.

In some embodiments, the number of bits occupied by the second index is determined according to at least one of: the maximum port number of all SRS resources of the first SRS resource set, the maximum port number of all SRS resources of the second SRS resource set, all layers, all precoding matrix indications, a layer number set supported by the second SRS resource set, and a precoding matrix indication set corresponding to the layer number with the largest precoding matrix indication in the layer number set supported by the second SRS resource set.

In some embodiments, the set of all layers includes at least one of: based on the number of layers that can be transmitted when the first SRS resource set is transmitted, based on the number of layers that can be transmitted when the second SRS resource set is transmitted, based on the number of layers that can be transmitted when the first SRS resource set and the second SRS resource set are transmitted.

In some embodiments, the maximum number of ports included in the first SRS resource set is greater than or equal to the maximum number of ports included in the second SRS resource set.

In some embodiments, the identity of the first set of SRS resources is less than the identity of the second set of SRS resources.

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 neither the first number of layers nor the second number of layers exceeds the minimum value.

In some embodiments, when only one layer exists in the first layer number and the second layer number, both the layer number for PUSCH transmission based on the first SRS resource and the layer number for PUSCH transmission based on the second SRS resource are the one layer number, and the one layer number does not exceed the minimum value.

In some embodiments, when the first port number set of the SRS resources included in the first SRS resource set includes a plurality of port numbers, and the number of bits occupied by the index in the table corresponding to the port number of the first SRS resource is smaller 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 performs the 0-supplementing operation according to the number of bits occupied by the index in the table corresponding to the maximum port number in the first port number set, otherwise, the first index is not subjected to the 0-supplementing operation.

In some embodiments, when the second port number set of the SRS resources included in the second SRS resource set includes a plurality of port numbers, and the number of bits occupied by the index in the table corresponding to the port number of the second SRS resource is smaller 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 performs the 0-supplementing operation according to the number of bits occupied by the index in the table corresponding to the maximum port number in the second port number set, otherwise, the second index is not subjected to the 0-supplementing operation.

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 in full power mode 2, and the first table and the second table are different when the number of ports of the first SRS resource and the number of ports of the second SRS resource are different.

Fig. 4 is a schematic block diagram of a network device 400 of 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 PUSCH transmission of a physical uplink shared channel; the PUSCH is repeatedly transmitted based on a first SRS resource in a first sounding reference signal SRS resource set and a second SRS resource in a second SRS resource set, wherein the first SRS resource set and the second SRS resource set are both used for codebook transmission, and when the port number of the first SRS resource and the port number of the second SRS resource are different, the maximum layer number of the PUSCH does not exceed the minimum value of the port number of the first SRS resource and the port number 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 to full power mode 2.

It should be understood that apparatus embodiments and method embodiments may correspond with each other and that similar descriptions may refer to the method embodiments. Specifically, the terminal device 300 shown in fig. 3 may correspond to a respective body in performing the method 200 of the embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the terminal device 300 are respectively for implementing a respective flow in each method in fig. 2, similarly, the network device 400 shown in fig. 4 may correspond to a respective body in performing the method 200 of the embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the network device 400 are respectively for implementing a respective flow in each method in fig. 2, which are not repeated herein for brevity.

The communication device of the embodiments of the present application is described above from the perspective of the functional module in conjunction with the accompanying drawings. It should be understood that the functional module may be implemented in hardware, or may be implemented by instructions in software, or may be implemented by a combination of hardware and software modules. Specifically, each step of the method embodiments in the embodiments of the present application may be implemented by an integrated logic circuit of hardware in a processor and/or an instruction in software form, and the steps of the method disclosed in connection with the embodiments of the present application may be directly implemented as a hardware decoding processor or implemented by a combination of hardware and software modules in the decoding processor. Alternatively, the software modules may be located in a well-established storage medium in the art such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, and the like. The storage medium is located in a memory, and the processor reads information in the memory, and in combination with hardware, performs the steps in the above method embodiments.

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 of an embodiment of the present application.

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

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

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

The memory 520 may be used for storing instruction information, and may also be used for storing code, instructions, etc. to be executed by the processor 510. Wherein the processor 510 may call and run a computer program from the memory 520 to implement the methods in embodiments of the present application. The memory 520 may be a separate device from the processor 510 or may be integrated into 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, and in particular, may send information or data to other devices or receive information or data sent by other devices. The transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include antennas, the number of which may be one or more.

It should be appreciated that the various components in the communication device 500 are connected by a bus system that 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 the embodiment of the present application, and the communication device 500 may implement respective flows implemented by the terminal device in the respective methods of the embodiment of the present application, that is, the communication device 500 of the embodiment of the present application may correspond to the terminal device 300 of the embodiment of the present application, and may correspond to a respective main body performing the method 200 according to the embodiment of the present application, which is not described herein for brevity. Similarly, the communication device 500 may be a network device of the embodiments of the present application, and the communication device 500 may implement respective flows implemented by the network device in the respective methods of the embodiments of the present application. That is, the communication device 500 of the embodiment of the present application may correspond to the network device 400 of the embodiment of the present application, and may correspond to a corresponding body in performing the method 200 according to the embodiment of the present application, which is not described herein for brevity.

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

For example, the chip may be an integrated circuit chip having signal processing capabilities, and may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. The chip may also be referred to as a system-on-chip, a system-on-chip or system-on-chip, etc. Alternatively, the chip may be applied to various communication devices, so that the communication device mounted with the chip can perform the methods, steps and logic blocks 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.

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

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

Wherein the processor 610 may call and run a computer program from the memory 620 to implement the methods in embodiments of the present application. The memory 620 may be used to store instruction information and may also be used to store code, instructions, etc. for execution by the processor 610. The memory 620 may be a separate device from the processor 610 or may be integrated into 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 in particular, may acquire information or data sent by the other devices or chips.

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

Wherein the processor 610 may control the output interface 640 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.

It should be understood that the chip 600 may be applied to a network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, or may implement a corresponding flow implemented by a terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

It should also be appreciated that the various components in the chip 600 are connected by a bus system that 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:

a general purpose processor, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like.

The processor may be configured to implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory or erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

The above references to memory include, but are not limited to:

volatile memory and/or nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (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 SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), and Direct memory bus RAM (DR RAM).

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

There is also provided in an embodiment of the present application 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 comprising instructions, which when executed by a portable electronic device comprising a plurality of application programs, enable the portable electronic device to perform the method of the embodiments shown in method 200. Optionally, the computer readable storage medium may be applied to a network device in the embodiments of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method in the embodiments of the present application, which is not described herein for brevity. Optionally, the computer readable storage medium may be applied to a mobile terminal/terminal device in the embodiments of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, which is not described herein for brevity.

A computer program product, including a computer program, is also provided in an embodiment of the present application. Optionally, the computer program product may be applied to a network device in the embodiments of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method in the embodiments of the present application, which is not described herein for brevity. Optionally, the computer program product may be applied to a mobile terminal/terminal device in the embodiments of the present application, and the computer program causes a computer to execute corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiments of the present application, which are not described herein for brevity.

A computer program is also provided in an embodiment of the present application. The computer program, when executed by a computer, enables the computer to perform the method of the embodiment shown in method 200. Optionally, the computer program may be applied to a network device in the embodiments of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the network device in each method in the embodiments of the present application, which is not described herein for brevity. Optionally, the computer program may be applied to a mobile terminal/terminal device in the embodiments of the present application, and when the computer program runs on a computer, the computer is caused to execute corresponding processes implemented by the mobile terminal/terminal device in each method in the embodiments of the present application, which are not described herein for brevity.

The embodiment of the present application further provides a communication system, which may include the above-mentioned terminal device and network device, so as to form the communication system 100 shown in fig. 1, which is not described herein for brevity. It should be noted that the term "system" and the like herein may also be referred to as "network management architecture" or "network system" and the like.

It is also to be understood that the terminology used in the embodiments of the present application and the appended claims is for the purpose of describing particular embodiments only, and is not intended to be limiting of the embodiments of the present application. For example, as used in the examples and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

Those of skill in the art will appreciate that the elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the embodiments of the present application. If implemented as a software functional unit and sold or used as a stand-alone product, may be stored on a computer readable storage medium. Based on such understanding, the technical solution of the embodiments of the present application may be essentially or, what contributes to the prior art, or part of the technical solution may be embodied in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk.

Those skilled in the art will further appreciate that, for convenience and brevity, specific working procedures of the above-described system, apparatus and unit may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein. In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods may be implemented in other ways. For example, the division of units or modules or components in the above-described apparatus embodiments is merely a logic function division, and there may be another division manner in actual implementation, for example, multiple units or modules or components may be combined or may be integrated into another system, or some units or modules or components may be omitted or not performed. As another example, the units/modules/components described above as separate/display components may or may not be physically separate, i.e., may be located in one place, or may be distributed over multiple network elements. Some or all of the units/modules/components may be selected according to actual needs to achieve the purposes of the embodiments of the present application. Finally, it is pointed out that the coupling or direct coupling or communication connection between the various elements shown or discussed above can be an indirect coupling or communication connection via interfaces, devices or elements, which can be in electrical, mechanical or other forms.

The foregoing is merely a specific implementation of the embodiments of the present application, but the protection scope of the embodiments of the present application is not limited thereto, and any person skilled in the art may easily think about changes or substitutions within the technical scope of the embodiments of the present application, and all changes and substitutions are included in the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the protection scope of the claims.

Claims

A method of wireless communication, comprising:

receiving indication information for indicating the transmission of a Physical Uplink Shared Channel (PUSCH); the PUSCH is repeatedly transmitted based on a first SRS resource in a first sounding reference signal SRS resource set and a second SRS resource in a second SRS resource set, wherein the first SRS resource set and the second SRS resource set are both used for codebook transmission, and when the port number of the first SRS resource and the port number of the second SRS resource are different, the maximum layer number of the PUSCH does not exceed the minimum value of the port number of the first SRS resource and the port number of the second SRS resource.
The method of claim 1, wherein the first SRS resource and the second SRS resource are used for different beams or different receiving ends when transmitting the PUSCH.
The method of claim 1 or 2, wherein the PUSCH is not configured for full power mode 2.
The method of claim 3, wherein the number of ports of all SRS resources in the first set of SRS resources is the same and the number of ports of all SRS resources in the second set of SRS resources is the same.
The method according to claim 1 or 2, characterized in that the PUSCH is configured in full power mode 2.
The method of claim 5, wherein the number of ports of all SRS resources in the first set of SRS resources is the same or different and the number of ports of all SRS resources in the second set of SRS resources is the same or different.
The method of any of claims 1-6, wherein a first set of port numbers of SRS resources comprised by the first set of SRS resources and a second set of port numbers of SRS resources comprised by the second set of SRS resources are the same or different.
The method of claim 7, wherein the first set of port numbers and the second set of port numbers are different, comprising: the first set of port numbers and the second set of port numbers are all different; alternatively, the first port number set and the second port number set are partially different; or, the number of ports in the first port number set is different from the number of ports in the second port number set.
The method according to any of claims 1 to 8, wherein the number of ports of the first SRS resource and the number of ports of the second SRS resource are different while characterizing that a configuration of the network device for the terminal device is incorrect.
The method according to any one of claims 1 to 8, wherein the indication information is used to indicate that the PUSCH is based on the first SRS resource and the second SRS resource when transmitted.
The method of claim 10, 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 10, characterized in that the indication information is carried in downlink control information, DCI, or radio resource control, RRC, signaling.
The method of claim 12, wherein the indication information indicates SRI information for SRS resources in the DCI or is carried in a new indication field in the DCI.
The method according to any of claims 1 to 13, wherein the number of ports of the first SRS resource is used for determining a first table and the number of ports of the second SRS resource is used for determining a second table, each index in the first table and the second table corresponding to one layer number and/or one precoding matrix indication, respectively.
The method of claim 14, wherein a first number of layers and/or a first precoding matrix indication for PUSCH transmission based on the first SRS resource is a number of layers or a precoding matrix indication corresponding to a first index in the first table, and a second number of layers and/or a second precoding matrix indication for PUSCH transmission based on the second SRS resource is a number of layers or a precoding matrix indication corresponding to a second index in the second table.
The method of claim 15, wherein the number of bits occupied by the first index is determined based on at least one of: the maximum port number of all SRS resources of the first SRS resource set, the maximum port number of all SRS resources of the second SRS resource set, all layers, all precoding matrix indications.
The method of claim 15, wherein the number of bits occupied by the second index is determined based on at least one of: the maximum port number of all SRS resources of the first SRS resource set, the maximum port number of all SRS resources of the second SRS resource set, all layers, all precoding matrix indications, a layer number set supported by the second SRS resource set, and a precoding matrix indication set corresponding to the layer number with the largest precoding matrix indication in the layer number set supported by the second SRS resource set.
The method according to claim 16 or 17, wherein the set of all layers comprises at least one of: based on the number of layers that can be transmitted when the first SRS resource set is transmitted, based on the number of layers that can be transmitted when the second SRS resource set is transmitted, based on the number of layers that can be transmitted when the first SRS resource set and the second SRS resource set are transmitted.
The method of claim 15, wherein the first set of SRS resources comprises a maximum number of ports greater than or equal to a maximum number of ports comprised by the second set of SRS resources.
The method of claim 15, wherein the identity of the first set of SRS resources is less than the identity of the second set of SRS resources.
The method of claim 15, wherein when the first number of layers and the second number of layers are both present, the first number of layers is equal to the second number of layers, and neither the first number of layers nor the second number of layers exceeds the minimum value.
The method of claim 15, wherein when only one of the first layer number and the second layer number exists, both a layer number for PUSCH transmission based on the first SRS resource and a layer number for PUSCH transmission based on the second SRS resource are the one layer number, and the one layer number does not exceed the minimum value.
The method of claim 15, wherein the first set of ports of SRS resources included in the first set of SRS resources includes a plurality of ports, and when a number of bits occupied by an index in a table corresponding to a port number of the first SRS resource is smaller than a number of bits occupied by an index in a table corresponding to a maximum port number in the first set of ports, the first index performs a 0-compensating operation according to a number of bits occupied by an index in a table corresponding to a maximum port number in the first set of ports, and otherwise, the first index is not subjected to a 0-compensating operation.
The method of claim 15, wherein the second set of ports of SRS resources included in the second set of SRS resources includes a plurality of ports, and wherein when a number of bits occupied by an index in a table corresponding to a port number of the second SRS resource is smaller than a number of bits occupied by an index in a table corresponding to a maximum port number in the second set of ports, the second index performs a 0-compensating operation according to a number of bits occupied by an index in a table corresponding to a maximum port number in the second set of ports, and otherwise, the second index is not subjected to a 0-compensating operation.
The method of claim 15, wherein the indication information comprises the first index and the second index.
The method of any of claims 14-25, wherein the PUSCH is not configured for full power mode 2, and the first table and the second table are the same.
The method of any of claims 14-25, wherein the PUSCH is configured in full power mode 2, and the first table and the second table are different when a number of ports of the first SRS resource and a number of ports of the second SRS resource are different.
The method according to any one of claims 1 to 27, wherein the indication information is information indicating time-frequency domain resources of the PUSCH.
A method of wireless communication, comprising:

transmitting indication information for indicating the transmission of a Physical Uplink Shared Channel (PUSCH); the PUSCH is repeatedly transmitted based on a first SRS resource in a first sounding reference signal SRS resource set and a second SRS resource in a second SRS resource set, wherein the first SRS resource set and the second SRS resource set are both used for codebook transmission, and when the port number of the first SRS resource and the port number of the second SRS resource are different, the maximum layer number of the PUSCH does not exceed the minimum value of the port number of the first SRS resource and the port number of the second SRS resource.
The method of claim 29, wherein the first SRS resource and the second SRS resource are used for different beams or different receiving ends when transmitting the PUSCH.
The method of claim 29 or 30, wherein the PUSCH is not configured for full power mode 2.
The method of claim 31, wherein the number of ports for all SRS resources in the first set of SRS resources is the same and the number of ports for all SRS resources in the second set of SRS resources is the same.
The method of claim 29 or 30, wherein the PUSCH is configured in full power mode 2.
The method of claim 30, wherein the number of ports of all SRS resources in the first set of SRS resources is the same or different and the number of ports of all SRS resources in the second set of SRS resources is the same or different.
The method of any of claims 29-34, wherein a first set of port numbers of SRS resources comprised by the first set of SRS resources and a second set of port numbers of SRS resources comprised by the second set of SRS resources are the same or different.
The method of claim 35, wherein the first set of port numbers and the second set of port numbers are different, comprising: the first set of port numbers and the second set of port numbers are all different; alternatively, the first port number set and the second port number set are partially different; or, the number of ports in the first port number set is different from the number of ports in the second port number set.
The method according to any of claims 29 to 36, wherein the number of ports of the first SRS resource and the number of ports of the second SRS resource are different in characterizing that a configuration of the network device for the terminal device is incorrect.
The method according to any one of claims 29 to 36, wherein the indication information is used to indicate that the PUSCH is based on the first SRS resource and the second SRS resource when transmitted.
The method of claim 38, 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 38, wherein the indication information is carried in downlink control information, DCI, or radio resource control, RRC, signaling.
The method of claim 40, wherein the indication information indicates SRI information for SRS resources in the DCI or is carried in a new indication field in the DCI.
The method of any of claims 29-41, wherein the number of ports of the first SRS resource is used to determine a first table and the number of ports of the second SRS resource is used to determine a second table, and each index in the first table and the second table corresponds to one layer number and/or one precoding matrix indication, respectively.
The method of claim 42, wherein a first number of layers and/or a first precoding matrix indication for PUSCH transmission based on the first SRS resource is a number of layers or a precoding matrix indication corresponding to a first index in the first table, and a second number of layers and/or a second precoding matrix indication for PUSCH transmission based on the second SRS resource is a number of layers or a precoding matrix indication corresponding to a second index in the second table.
The method of claim 43, wherein the number of bits occupied by the first index is determined based on at least one of: the maximum port number of all SRS resources of the first SRS resource set, the maximum port number of all SRS resources of the second SRS resource set, all layers, all precoding matrix indications.
The method of claim 43, wherein the number of bits occupied by the second index is determined based on at least one of: the maximum port number of all SRS resources of the first SRS resource set, the maximum port number of all SRS resources of the second SRS resource set, all layers, all precoding matrix indications, a layer number set supported by the second SRS resource set, and a precoding matrix indication set corresponding to the layer number with the largest precoding matrix indication in the layer number set supported by the second SRS resource set.
The method of claim 44 or 45, wherein the set of all layers comprises at least one of: based on the number of layers that can be transmitted when the first SRS resource set is transmitted, based on the number of layers that can be transmitted when the second SRS resource set is transmitted, based on the number of layers that can be transmitted when the first SRS resource set and the second SRS resource set are transmitted.
The method of claim 43, wherein the first set of SRS resources comprises a maximum number of ports greater than or equal to a maximum number of ports comprised by the second set of SRS resources.
The method of claim 43, wherein the identification of the first set of SRS resources is less than the identification of the second set of SRS resources.
The method of claim 43, wherein 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 neither the first number of layers nor the second number of layers exceeds the minimum value.
The method of claim 43, wherein when only one of the first layer number and the second layer number exists, both a layer number for PUSCH transmission based on the first SRS resource and a layer number for PUSCH transmission based on the second SRS resource are the one layer number, and the one layer number does not exceed the minimum value.
The method of claim 43, wherein the first set of port numbers of SRS resources included in the first set of SRS resources includes a plurality of port numbers, and when a number of bits occupied by an index in a table corresponding to the port number of the first SRS resource is smaller than a number of bits occupied by an index in a table corresponding to a maximum port number in the first set of port numbers, the first index performs a 0-compensating operation according to the number of bits occupied by an index in the table corresponding to the maximum port number in the first set of port numbers, otherwise, the first index is not subjected to the 0-compensating operation.
The method of claim 43, wherein the second set of port numbers of SRS resources included in the second set of SRS resources includes a plurality of port numbers, and when a number of bits occupied by an index in a table corresponding to the port number of the second SRS resource is smaller than a number of bits occupied by an index in a table corresponding to a maximum port number in the second set of port numbers, the second index performs a 0-compensating operation according to the number of bits occupied by an index in the table corresponding to the maximum port number in the second set of port numbers, otherwise, the second index is not subjected to the 0-compensating operation.
The method of claim 43, wherein the indication information comprises the first index and the second index.
The method of any of claims 42-53, wherein the PUSCH is not configured for full power mode 2, and the first table and the second table are the same.
The method of any one of claims 42-53, wherein the PUSCH is configured in full power mode 2, and the first table and the second table are different when a number of ports of the first SRS resource and a number of ports of the second SRS resource are different.
The method according to any one of claims 29 to 55, wherein the indication information is information indicating time-frequency domain resources of the PUSCH.
A terminal device, comprising:

a communication unit, configured to receive indication information for indicating PUSCH transmission of a physical uplink shared channel; the PUSCH is repeatedly transmitted based on a first SRS resource in a first sounding reference signal SRS resource set and a second SRS resource in a second SRS resource set, wherein the first SRS resource set and the second SRS resource set are both used for codebook transmission, and when the port number of the first SRS resource and the port number of the second SRS resource are different, the maximum layer number of the PUSCH does not exceed the minimum value of the port number of the first SRS resource and the port number of the second SRS resource.
A network device, comprising:

a communication unit, configured to send indication information for indicating PUSCH transmission of a physical uplink shared channel; the PUSCH is repeatedly transmitted based on a first SRS resource in a first sounding reference signal SRS resource set and a second SRS resource in a second SRS resource set, wherein the first SRS resource set and the second SRS resource set are both used for codebook transmission, and when the port number of the first SRS resource and the port number of the second SRS resource are different, the maximum layer number of the PUSCH does not exceed the minimum value of the port number of the first SRS resource and the port number of the second SRS resource.
A terminal device, comprising:

a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory to perform the method of any of claims 1 to 28.
A network device, comprising:

a processor and a 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 of claims 29 to 56.
A chip, comprising:

a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 28 or the method of any one of claims 29 to 56.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 28 or the method of any one of claims 29 to 56.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 28 or the method of any one of claims 29 to 56.
A computer program, characterized in that the computer program causes a computer to perform the method of any one of claims 1 to 28 or the method of any one of claims 29 to 56.