CN112703753A

CN112703753A - Signal transmission method, terminal equipment and network equipment

Info

Publication number: CN112703753A
Application number: CN201980060139.6A
Authority: CN
Inventors: 陈文洪; 史志华
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-01-23
Filing date: 2019-01-23
Publication date: 2021-04-23
Anticipated expiration: 2039-01-23
Also published as: WO2020150943A1; CN112703753B

Abstract

The embodiment of the application discloses a method for transmitting signals, terminal equipment and network equipment, wherein the method comprises the following steps: the terminal equipment determines a transmission parameter of a first Physical Uplink Shared Channel (PUSCH) according to the first SRS resource set; wherein the first set of SRS resources is associated with a first control channel in which first downlink control information, DCI, is detected, the first DCI being used to schedule the first PUSCH, or the first set of SRS resources is associated with a first set of PUSCH configuration parameters used by the first PUSCH. The method, the terminal equipment and the network equipment of the embodiment of the application can well match the PUSCH transmission in the uplink incoherent transmission, and are beneficial to improving the spectrum efficiency of the uplink transmission, so that the transmission performance of the PUSCH is improved.

Description

Signal transmission method, terminal equipment and network equipment

Technical Field

The embodiment of the application relates to the field of communication, in particular to a signal transmission method, terminal equipment and network equipment.

Background

In the related art, a terminal device may obtain a transmission parameter of a Physical Uplink Shared Channel (PUSCH) through a Sounding Reference Signal (SRS) resource set, but since the configuration of the SRS resource set can only distinguish PUSCH transmissions of different Multiple-Input Multiple-Output (MIMO) transmission schemes, for example, a network device configures independent SRS resource sets for a codebook-based PUSCH transmission and a non-codebook-based PUSCH transmission, respectively, so as to obtain the transmission parameter of the PUSCH. The current SRS resource set configuration may cause that the transmission parameter matching degree of the PUSCH acquired in the uplink non-coherent transmission is not good enough.

Disclosure of Invention

The embodiment of the application provides a method for transmitting signals, terminal equipment and network equipment, which can be well matched with PUSCH transmission in uplink incoherent transmission, and are beneficial to improving the spectrum efficiency of uplink transmission, so that the transmission performance of the PUSCH is improved.

In a first aspect, a method for transmitting a signal is provided, the method comprising: the terminal equipment determines a transmission parameter of a first Physical Uplink Shared Channel (PUSCH) according to the first SRS resource set; wherein the first set of SRS resources is associated with a first control channel in which first downlink control information, DCI, is detected, the first DCI being used to schedule the first PUSCH, or the first set of SRS resources is associated with a first set of PUSCH configuration parameters used by the first PUSCH.

In a second aspect, a network device determines information of first downlink control information DCI according to a first sounding reference signal SRS resource set; the network equipment sends the first DCI to terminal equipment, wherein the first DCI is used for scheduling a first Physical Uplink Shared Channel (PUSCH); wherein a first control channel for carrying the first DCI is associated with the first set of SRS resources, or a first set of PUSCH configuration parameters for the first PUSCH is associated with the first set of SRS resources.

In a third aspect, a terminal device is provided, configured to perform the method in 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 a fourth aspect, a network device is provided for performing the method of the second aspect or its implementation manners.

In particular, the network device comprises functional modules for performing the methods of the second aspect or its implementations described above.

In a fifth aspect, a terminal device is provided that includes 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, and executing the method in the first aspect or each implementation manner thereof.

In a sixth aspect, a network device is provided that includes 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, and executing the method of the second aspect or each implementation mode thereof.

In a seventh aspect, a chip is provided for implementing the method in any one of the first to second aspects or its implementation manners.

Specifically, the chip includes: a processor configured to call and run the computer program from the memory, so that the device on which the chip is installed performs the method in any one of the first aspect to the second aspect or the implementation manners thereof.

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

In a ninth aspect, there is provided a computer program product comprising computer program instructions to cause a computer to perform the method of any one of the first to second aspects or implementations thereof.

A tenth aspect provides a computer program that, when run on a computer, causes the computer to perform the method of any one of the first to second aspects or implementations thereof.

Through the technical scheme, the first SRS resource set used for determining the transmission parameters of the first PUSCH is associated with the first control channel or the first PUSCH configuration parameter set, so that the terminal equipment can determine the transmission parameters of the first PUSCH according to the first SRS resource set associated with the first control channel or the first PUSCH configuration parameter set, the matching degree of the transmission parameters of the PUSCH obtained in uplink incoherent transmission is favorably improved, the spectrum efficiency of uplink transmission can be improved, and the transmission performance of the PUSCH is improved.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture according to an embodiment of the present application.

Fig. 2 shows a process diagram of codebook-based PUSCH transmission.

Fig. 3 shows a process diagram of non-codebook based PUSCH transmission.

Fig. 4 shows a process diagram of uplink beam management.

Fig. 5 is a schematic diagram of a method for transmitting a signal according to an embodiment of the present disclosure.

Fig. 6 is another schematic diagram of a method for transmitting a signal according to an embodiment of the present disclosure.

Fig. 7 is an interaction diagram of a method for transmitting a signal according to an embodiment of the present disclosure.

Fig. 8a and 8b show schematic diagrams of downlink non-coherent transmission.

Fig. 9a and 9b show schematic diagrams of uplink non-coherent transmission.

Fig. 10 is a schematic scene diagram of two TRPs scheduling different PUSCHs to which an embodiment of the present application is applicable.

Fig. 11 is a flowchart corresponding to embodiment 1.

Fig. 12 is a flowchart corresponding to embodiment 2.

Fig. 13 is a flowchart corresponding to embodiment 3.

Fig. 14 is a flowchart corresponding to embodiment 4.

Fig. 15 is a schematic block diagram of a terminal device provided in an embodiment of the present application.

Fig. 16 is a schematic block diagram of a network device according to an embodiment of the present application.

Fig. 17 is another schematic block diagram of a terminal device provided in an embodiment of the present application.

Fig. 18 is another schematic block diagram of a network device provided in an embodiment of the present application.

Fig. 19 is a schematic block diagram of a chip provided in an embodiment of the present application.

Fig. 20 is a schematic block diagram of a communication system according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be understood that the technical solutions of the embodiments of the present application may be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a long term evolution LTE System, a LTE Frequency Division Duplex (FDD) System, a LTE Time Division Duplex (TDD), a Universal Mobile telecommunications System (Universal Mobile telecommunications System, UMTS), a UMTS Worldwide Interoperability for Microwave Access (WiMAX) communication System, a New Radio (New Radio, NR), a future 5G System, and the like.

In particular, the technical solution of the embodiment of the present application may be applied to various communication systems based on a non-orthogonal Multiple Access technology, such as a Sparse Code Multiple Access (SCMA) system, a Low Density Signature (LDS) system, and the like, and certainly the SCMA system and the LDS system may also be called other names in the communication field; further, the technical solution of the embodiment of the present application may be applied to a Multi-Carrier transmission system using a non-Orthogonal multiple access technology, for example, an Orthogonal Frequency Division Multiplexing (OFDM) using a non-Orthogonal multiple access technology, a Filter Bank Multi-Carrier (FBMC), a General Frequency Division Multiplexing (GFDM), a Filtered Orthogonal Frequency Division Multiplexing (F-OFDM) system, and the like.

Illustratively, a communication system 100 applied in the embodiment of the present application is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area. Optionally, the Network device 110 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or a Network device in a Mobile switching center, a relay Station, an Access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a Network device gNB in a 5G Network, or a Network device in a Public Land Mobile Network (PLMN) for future evolution, or the like.

The communication system 100 further comprises at least one terminal device 120 located within the coverage area of the network device 110. As used herein, "terminal Equipment" includes, but is not limited to, User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, and the embodiments of the present invention are not limited thereto.

Optionally, a Device to Device (D2D) communication may be performed between the terminal devices 120.

Alternatively, the 5G system or the 5G network may also be referred to as a New Radio (NR) system or an NR network.

Fig. 1 exemplarily shows one network device and two terminal devices, and optionally, the communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device, which is not limited in this embodiment of the present application.

Optionally, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that a device having a communication function in a network/system in the embodiments of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal device 120 having a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above and are not described herein again; the communication device may also include other devices in the communication system 100, such as other network entities, for example, a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

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

When the terminal device sends the PUSCH, precoding processing needs to be performed on uplink data to obtain uplink precoding gain. The precoding process is generally divided into two parts: analog domain processing and digital domain processing. The analog domain processing generally uses beamforming to map the rf signal to the physical antenna for the transmitted analog signal. The digital domain processing is performed on digital signals, generally at a baseband, and the digital signals are precoded by using a precoding matrix, and data of a transmission layer is mapped to a radio frequency port. Because the number of radio frequency channels of the terminal device is limited, two processing modes are generally adopted at the same time, namely, the digital signal is precoded, and then the analog signal is shaped by adopting a beam. The PUSCH transmission is classified into codebook-based transmission and non-codebook-based transmission according to the difference of precoding modes.

As shown in fig. 2, in the uplink codebook-based precoding scheme, the gNB configures a set of SRS resources dedicated to codebook transmission for the UE device. The UE may send SRS on multiple SRS resources in the set, the SRS on each SRS Resource may be sent by using different beams, and the gNB selects the best SRS Resource from the SRS resources to obtain uplink Channel State Information (CSI), and simultaneously indicates the Resource index to the UE through an SRS Resource Indicator (SRI), so that the UE performs analog beamforming on data by using a beam corresponding to the SRS Resource. Meanwhile, the gNB may indicate a Rank Indicator (RI), a Precoding Matrix Index (PMI) and a Modulation and Coding Scheme (MCS) through Downlink Control Information (DCI), and the UE may determine an uplink Precoding Matrix corresponding to the PMI from the codebook according to the RI and the PMI, and then may perform uplink data and Demodulation Reference Signal (DMRS) according to the determined Precoding Matrix.

For some UEs supporting the reciprocity of uplink and downlink channels, a precoding mode based on a non-codebook can be supported. As shown in fig. 3, the UE may obtain uplink channel information by using the downlink channel information, so as to perform uplink analog beamforming and/or digital precoding, and at this time, the gNB does not need to indicate related information of a precoding matrix, so as to reduce the overhead of the DCI. Specifically, the gNB first sends the CSI-RS, and enables the UE to determine beams and precoding matrices of N layers (layers) based on a Channel State Information Reference Signal (CSI-RS). The UE transmits SRS resources of N single ports (i.e., N SRS ports) using beams of the N layers and a precoding matrix, and the N SRS resources are configured as one SRS resource set for non-codebook transmission. And the gNB receives the SRS resources and then measures, selects the best K SRS resources and indicates the corresponding SRI and MCS to the UE, and the UE determines the adopted transmission parameters such as the number of transmission layers, the precoding matrix and the analog beam according to the SRI. The number of the indicated SRS resources is the number of transmission layers, and the precoding matrix and the analog beam adopted by the corresponding SRS resource are the precoding matrix and the beam adopted by the corresponding layer of the data. In this case, the indication of RI and PMI is not required in DCI. Further, the UE may perform uplink data and Demodulation Reference Signal (DMRS) according to the determined precoding matrix.

In NR, a UE may transmit uplink data and uplink control information using analog beams. The UE may perform uplink beam management based on the SRS signals to determine an analog beam for uplink transmission. Specifically, as shown in fig. 4, the network may configure an SRS resource set1 for the UE, where the set includes N SRS resources (N > 1). The UE may transmit the N SRS resources by using different beams, and the gNB may measure the reception quality of the N SRS resources, and select K SRS resources with the best reception quality. The gNB may reconfigure a set2 of SRS resources, which includes K SRS resources, and enable the UE to transmit the SRS resources in the set2 by using the analog beams used by the K SRS resources selected from the set 1. This can be achieved by configuring the K SRS resources selected in the set1 as reference SRS resources of the K SRS resources in the set2, respectively. At this time, based on the SRS transmitted by the UE in SRS resource set2, the gNB may select one SRS resource with the best reception quality, and notify the UE of the corresponding SRI. After receiving the SRI, the UE determines the analog beam used by the SRS resource indicated by the SRI as an analog beam used for transmitting a PUSCH/Physical Uplink Control Channel (PUCCH). For PUSCH, the SRI is indicated by an SRI indication field in DCI. For the PUCCH, a PUCCH-spatial relationship info corresponding to each PUCCH resource is configured in RRC signaling, and the information field may include SRI.

As can be known from the introduction of the related art, the transmission parameters of the PUSCH can be obtained through the SRS resource set, and in order to improve the transmission performance of the PUSCH, the embodiment of the present application provides a method for transmitting a signal, which can match the transmission of uplink channels in different scenarios by flexibly configuring the SRS resource set.

Fig. 5 shows a schematic block diagram of a method 200 of transmitting a signal of an embodiment of the application. As shown in fig. 4, the method 200 may be performed by a terminal device, and the method 200 may include some or all of the following:

s210, the terminal equipment determines the transmission parameters of a PUSCH (physical uplink shared channel) according to the first SRS resource set.

Wherein the first set of SRS resources is associated with a first control channel in which first downlink control information, DCI, is detected, the first DCI being used to schedule the first PUSCH, or the first set of SRS resources is associated with a first set of PUSCH configuration parameters used by the first PUSCH.

Fig. 6 shows a schematic block diagram of a method 300 of transmitting a signal of an embodiment of the application. As shown in fig. 5, the method 300 may be performed by a network device, and the method 200 may include some or all of the following:

s310, the network device determines information of the first downlink control information DCI according to the first SRS resource set.

S320, the network device sends a first downlink control information DCI to the terminal device, where the first DCI is used to schedule a first PUSCH.

Wherein a first control channel for carrying the first DCI is associated with a first set of Sounding Reference Signal (SRS) resources, or a first set of PUSCH configuration parameters for the first PUSCH is associated with the first set of SRS resources.

Fig. 7 shows a schematic flow chart of a method 400 of transmitting a signal of an embodiment of the application. As shown in fig. 6, the method 400 may be implemented by an interaction between a terminal device and a network device, and specifically, the method 400 includes some or all of the following:

s410, the network device determines information included in the first DCI, for example, at least one of the SRI, RI, PMI, and MCS, according to the first SRS resource set.

S420, the network device sends a first DCI to the terminal device, wherein the first DCI is used for scheduling a first PUSCH;

s430, the terminal device acquires the first control channel in which the first DCI is detected or the terminal device acquires the first PUSCH configuration parameter set of the first PUSCH;

s440, the terminal device determines a first SRS resource set according to the first control channel or the first PUSCH configuration parameter set;

s450, the terminal equipment determines the transmission parameter of the first PUSCH according to the first SRS resource set;

and S460, the terminal equipment sends the first PUSCH by adopting the transmission parameters determined in S450.

First, the following points need to be explained:

the Control Channel may include various Control channels such as a Control Resource Set (core Set), a search space, or a Physical Downlink Control Channel (PDCCH). In this embodiment, a control channel associated with the first SRS resource set may be used to carry the first DCI scheduling the first PUSCH.

Secondly, the PUSCH configuration parameter set and the transmission parameter of the PUSCH can be regarded as two different parameter sets of the PUSCH, wherein the parameters included in the PUSCH configuration parameter set and the transmission parameter of the PUSCH may be partially the same. The transmission parameters of the PUSCH are generally determined according to the SRS resource set, and the PUSCH configuration parameter set is generally configured through Radio Resource Control (RRC) signaling, for example, through an RRC parameter domain, PUSCH-config, to configure a PUSCH configuration parameter set. The PUSCH configuration parameter set may also be derived by detecting a first control channel of the first DCI. For example, the network side may configure an associated PUSCH configuration parameter set for each core set in advance, and when the terminal detects the first DCI through one core set, the terminal may obtain the corresponding PUSCH configuration parameter set through the association relationship.

Wherein, one PUSCH configuration parameter set is used for configuring parameters related to the PUSCH, and may include at least one of the following parameters, for example: scrambling Identification (ID) for scrambling data carried by PUSCH, MIMO transmission scheme used by PUSCH, configuration of demodulation reference signal DMRS of PUSCH, power control parameters, frequency domain frequency hopping configuration, configuration of whether Discrete Fourier Transform (DFT) is performed, codebook subset constraint configuration, maximum transmission layer number configuration, transmission configuration of Uplink Control Information (UCI) carried by PUSCH, configuration of (pi/2-Binary Phase Shift Keying (BPSK) modulation whether DFT transform is allowed, time domain Resource configuration of PUSCH, number of repetitions or aggregation slots of PUSCH, Resource Block Group (RBG) size used for Resource allocation, and modulation and coding scheme MCS table used for data transmission.

The scrambling ID used for scrambling data carried by the PUSCH may be, for example, a Radio Network Temporary Identity (RNTI).

The MIMO transmission scheme used for PUSCH may include codebook-based transmission, non-codebook-based transmission, multi-codeword-based spatial multiplexing transmission, space-time transmit diversity-based transmission, space-frequency transmit diversity-based transmission, cyclic delay diversity-based transmission, and the like.

The configuration of the DMRS for PUSCH may include at least one of the following parameters:

1. a starting DMRS symbol position indicating an Orthogonal Frequency Division Multiplexing (OFDM) symbol in which the first DMRS symbol (i.e., the DMRS transmitted earliest in the slot) is located, e.g., may be the third or fourth OFDM symbol.

2. A DMRS type for indicating whether a type (type)1DMRS or a type 2DMRS is used.

3. An additional DMRS position to indicate a position of an OFDM symbol occupied by other DMRSs except the basic DMRS.

4. The number of OFDM symbols occupied by the basic DMRS may be 1 or 2.

5. The scrambling ID used for DMRS, specifically, 2 scrambling IDs may be configured.

6. A Phase Tracking Reference Signal (PTRS) configuration associated with the DMRS.

The power control parameter is a parameter used for instructing the PUSCH to perform uplink power control. For example, configurations may include open-loop power control parameters (such as initial values Po of the open-loop power control parameters, path loss factors), closed-loop power control parameters, and path loss measurement reference signals.

The frequency domain hopping configuration is used to indicate whether frequency domain hopping is allowed and the specific manner of frequency domain hopping.

The configuration of whether to perform DFT transform can be used to indicate whether the multiple access method adopted is DFT Spread OFDM (DFT-Spread OFDM, DFT-S-OFDM) or Cyclic Prefix-OFDM (CP-OFDM).

The codebook subset restriction configuration may be used to indicate a subset of codebooks available in a codebook-based transmission.

The maximum transmission layer number configuration may be used to indicate a maximum transmission layer number allowed for uplink or downlink data transmission.

The transmission configuration of the UCI carried by the PUSCH may be used to indicate parameters used for calculating the resource occupied by the UCI.

The time domain resource configuration of the PUSCH may be a time domain resource used to indicate that the PUSCH occupies within one slot, such as a starting OFDM symbol, the number of occupied OFDM symbols, and the like.

The number of repetitions of the PUSCH or the number of aggregated slots may be used to indicate the number of slots that the PUSCH continuously occupies for repeated transmission of the same PUSCH.

The RBG size used for resource allocation may be used to indicate a resource unit of frequency domain resource allocation.

The transmission parameters of the PUSCH may include at least one of the above-described number of transmission layers, precoding matrix, number of antenna ports, transmission beam, and the like, and may also include parameters such as power control parameters or antenna panels used for PUSCH transmission.

In particular, the terminal device may be configured with one or more control channels or one or more PUSCH configuration parameter sets. Each of the one or more control channels may be associated with at least one set of SRS resources, or each of the one or more PUSCH configuration parameter sets may be associated with at least one set of SRS resources. Alternatively, each of the plurality of control channels may be associated with at least one SRS resource set, or some of the plurality of PUSCH configuration parameter sets may be associated with at least one SRS resource set. The network equipment can firstly determine a corresponding SRS resource set according to a control channel used by DCI to be transmitted or a PUSCH configuration parameter set used by a PUSCH to be transmitted, then determine information included in the DCI according to the SRS resource set, and transmit the DCI to the terminal equipment, and after the terminal equipment detects the DCI in a certain control channel, the SRS resource set associated with the control channel can be obtained; or after the terminal device detects the DCI for scheduling the PUSCH, the terminal device may acquire the PUSCH configuration parameter set used for the scheduled PUSCH, thereby determining the corresponding SRS resource set. The terminal device may then determine a first set of SRS resources from the corresponding set of SRS resources to determine transmission parameters for a scheduled PUSCH, and may transmit the scheduled PUSCH based on the transmission parameters.

Therefore, in the method for transmitting signals according to the embodiment of the present application, the first SRS resource set used for determining the transmission parameter of the first PUSCH is associated with the first control channel or the first PUSCH configuration parameter set, so that the terminal device may determine the transmission parameter of the first PUSCH according to the first SRS resource set associated with the first control channel or the first PUSCH configuration parameter set, which is beneficial to improving the matching degree of the transmission parameter of the PUSCH obtained in the uplink non-coherent transmission, and thus the spectrum efficiency of the uplink transmission can be improved, so as to improve the transmission performance of the PUSCH.

Optionally, the association relationship between each control channel and at least one SRS resource set, or the association relationship between each PUSCH configuration parameter set and at least one SRS resource set may be configured to send a configuration information indication to the terminal device through the network device, or may also adopt a protocol agreed manner. For example, the network device sends configuration information to the terminal device, where the configuration information is used to indicate an SRS resource set corresponding to each control channel in the N control channels or each PUSCH configuration parameter set in the N PUSCH configuration parameter sets. For another example, the network device configures N SRS resource sets for the terminal device, and simultaneously configures N CORESET or search space or PUSCH configuration parameter sets, and when the kth CORESET or search space scheduling is adopted, or the kth PUSCH configuration parameter set is adopted for uplink transmission, the kth SRS resource set is adopted. Therefore, the network equipment is not required to configure the corresponding SRS resource set for each CORESET or search space or PUSCH configuration parameter set, and the signaling overhead can be reduced.

Optionally, the control channel may be associated with a PUSCH configuration parameter set, and at least one SRS resource set may be respectively associated with different PUSCH configuration parameter sets, and the terminal device may determine, according to the first control channel in which the first DCI is detected, the first PUSCH configuration parameter set used by the first PUSCH, and then determine, according to the first PUSCH configuration parameter set, at least one SRS resource set associated therewith.

Optionally, RNTI used for Cyclic Redundancy Check (CRC) scrambling of DCI scheduling the first PUSCH may be associated with the PUSCH configuration parameter set, and at least one SRS resource set is respectively associated with different PUSCH configuration parameter sets, and the terminal device may determine the first PUSCH configuration parameter set used for the first PUSCH according to the RNTI used for detecting that the first DCI is CRC scrambled, and then determine the at least one SRS resource set associated therewith according to the first PUSCH configuration parameter set.

Optionally, the SRS resource sets may be associated with the entire PDCCH configuration parameter set, and at least one SRS resource set is associated for different PDCCH configuration parameter sets, respectively, where the PDCCH configuration parameter set may include at least one of a CORESET configuration, a search space configuration, a downlink resource reservation configuration, a PUSCH Transmit Power Control (TPC) configuration, a PUCCH TPC configuration, and an SRS TPC configuration. The terminal device may determine, according to the first PDCCH for which the first DCI is detected, the corresponding first PDCCH configuration parameter set, and then determine, according to the first PDCCH configuration parameter set, at least one SRS resource set associated therewith.

Optionally, the SRS resource sets may also be associated with a CORESET or a search space in one PDCCH configuration parameter set, and at least one SRS resource set is respectively associated with a different CORESET or a different search space in one PDCCH configuration parameter set. The terminal device may determine at least one SRS resource set associated therewith according to the first CORESET or the first search space in which the first DCI is detected.

Optionally, each control channel is associated with one transmission point (TRP) and/or one antenna panel; and/or associating one TRP and/or one antenna panel per PUSCH configuration parameter set.

A UE may have multiple antenna panels (panels) for uplink transmission, one panel containing a set of physical antennas, each panel having a separate radio frequency channel. The UE needs to inform the gNB of the number of panels supported in the capability report. Meanwhile, the UE may also need to inform the gNB whether it has the capability to transmit signals on multiple panels simultaneously. Because the channel conditions corresponding to different panels are different, different panels need to adopt different transmission parameters according to their respective channel information. In order to obtain these transmission parameters, different sets of SRS resources may be configured for different panels to obtain uplink channel information. For example, in order to perform uplink beam management, one SRS resource set may be configured for each panel, so that each panel performs beam management separately to determine an independent analog beam. In order to obtain precoding information for PUSCH transmission, one SRS resource set may be configured for each panel to obtain transmission parameters such as a beam, a precoding vector, and the number of transmission layers for PUSCH transmitted on the panel.

In the NR system, non-coherent transmission of downlink and uplink is introduced. In downlink non-coherent transmission, multiple TRPs may use different control channels to independently schedule PDSCH transmission of one UE, and the scheduled PDSCH may be transmitted in the same time slot or different time slots. The UE needs to support simultaneous reception of PDCCH and PDSCH from different TRPs. When the UE feeds back an Acknowledgement (ACK)/Negative Acknowledgement (NACK), the ACK/NACK may be fed back to different TRPs transmitting corresponding PDSCHs respectively, as shown in fig. 8a, or reported to one TRP in combination, as shown in fig. 8 b.

In uplink non-coherent transmission, different TRPs can also independently schedule PUSCH transmission of the same UE. Independent transmission parameters, such as transmit beams, precoding matrices, number of transmission layers, etc., may be configured for different PUSCH transmissions. The scheduled PUSCH transmissions may be transmitted in the same time slot or different time slots. If the UE is scheduled two PUSCH transmissions simultaneously in the same slot, it needs to determine how to transmit according to its own capabilities. If the UE is configured with multiple panels and supports simultaneous transmission of PUSCHs on multiple panels, the two PUSCHs can be transmitted simultaneously, and the PUSCHs transmitted on different panels are analog shaped to the corresponding TRPs, so as to distinguish different PUSCHs by spatial domain and provide uplink spectral efficiency, as shown in fig. 9 a. If the UE has only a single panel, or does not support simultaneous transmission of multiple panels, the PUSCH can only be transmitted on one panel, as shown in fig. 9 b.

Therefore, in the method for transmitting a signal according to the embodiment of the present application, a control channel or a PUSCH configuration parameter set may be respectively associated with a plurality of TRPs for uplink scheduling, and an SRS resource set may be respectively configured for each control channel or each PUSCH configuration parameter set, so that each TRP is configured with an independent SRS resource set. When a control channel or PUSCH configuration parameter set corresponding to a TRP is adopted for uplink transmission, the SRS resource set corresponding to the TRP is adopted to determine transmission parameters, so that the purpose of independently determining the transmission parameters for the transmission of different TRPs is achieved. The frequency spectrum efficiency of uplink transmission is improved by better matching the transmission parameters with the channel of the TRP. Or, when the terminal equipment has multiple antenna panels, the multiple antenna panels may configure independent SRS resource sets, respectively, so that when the PUSCH and SRS resource sets employ the same panel transmission, the transmission parameters of the PUSCH determined by the network side may be more accurate.

Optionally, in this embodiment of the present application, the first control channel or the first PUSCH configuration parameter set is associated with at least one SRS resource set, where the at least one SRS resource set includes the first SRS resource set, and the method further includes: the terminal device determines the first SRS resource set from the at least one SRS resource set according to the multiple-input multiple-output (MIMO) transmission scheme of the first PUSCH.

The first control channel or first PUSCH configuration parameter set may be associated with at least one set of SRS resources, e.g., the first control channel or first PUSCH configuration parameter set may be associated with a set of SRS resources of different usages. Specifically, the associated at least one SRS resource set may include at least one of an SRS resource set for codebook transmission, an SRS resource set for non-codebook transmission, an SRS resource set for antenna switching, an SRS resource set for obtaining downlink CSI, and an SRS resource set for beam management. Typically, when the first control channel or the first PUSCH configuration parameter set associates two sets of SRS resources, one set of SRS resources for codebook transmission and the other set of SRS resources for non-codebook transmission. The terminal device may determine a corresponding first SRS resource set from the two SRS resource sets according to the MIMO transmission scheme for the first PUSCH. For example, if the MIMO transmission scheme for the first PUSCH is codebook-based transmission, then the set of SRS resources used for codebook transmission may be determined among the two sets of SRS resources as the first set of SRS resources. If the MIMO transmission scheme for the first PUSCH is non-codebook based transmission, then the set of SRS resources for non-codebook transmission may be determined to be the first set of SRS resources among the two sets of SRS resources.

Optionally, if there is only one SRS resource set associated with the first control channel or the first PUSCH configuration parameter set, the associated SRS resource set corresponds to the MIMO transmission scheme of the first PUSCH. For example, if the MIMO transmission scheme of the first PUSCH is codebook-based transmission, the associated SRS resource set is an SRS resource set for codebook transmission; if the MIMO transmission scheme of the first PUSCH is non-codebook based transmission, the associated SRS resource set is the SRS resource set for non-codebook transmission.

If there is no SRS resource set matching the MIMO transmission scheme of the first PUSCH in the SRS resource sets associated with the first control channel or the first PUSCH configuration parameter set, the terminal device may consider this as an erroneous configuration, and may not perform transmission of the first PUSCH. For example, the MIMO transmission scheme for the first PUSCH is codebook-based transmission, and the set of SRS resources used for codebook transmission is not included in the associated set of SRS resources; or the MIMO transmission scheme for the first PUSCH is non-codebook based transmission and the associated set of SRS resources does not include the set of SRS resources for non-codebook transmission.

Different SRS resource sets are determined for different MIMO transmission scheme configurations, so that the SRS resource configurations can better match the requirements of the corresponding MIMO transmission schemes.

Optionally, in an embodiment of the present application, the method further includes: and the terminal equipment determines parameters included in the transmission parameters of the first PUSCH according to the MIMO transmission scheme of the first PUSCH. In other words, the determining, by the terminal device, the transmission parameter of the first physical uplink shared channel, PUSCH, according to the first SRS resource set includes: and the terminal equipment determines the transmission parameters of the first PUSCH according to the first SRS resource set and the MIMO transmission scheme of the first PUSCH.

Specifically, the terminal device may determine parameters included in the transmission parameters of the first PUSCH according to the MIMO transmission scheme of the first PUSCH before determining the transmission parameters of the first PUSCH according to the first SRS resource set. For example, if the MIMO transmission scheme of the first PUSCH is codebook-based transmission, the transmission parameters of the first PUSCH may include at least a precoding matrix and a transmission beam; if the MIMO transmission scheme of the first PUSCH is non-codebook based transmission, the transmission parameters of the first PUSCH may include at least the number of transmission layers, a precoding matrix, and a transmission beam. In addition, some transmission parameters may be independent of the MIMO transmission scheme. For example, for both MIMO transmission schemes, the transmission parameters may include a power control parameter or antenna panel that transmits the first PUSCH. After determining the parameters included in the transmission parameters of the first PUSCH, the transmission parameters of the first PUSCH may be determined further according to the first set of SRS resources.

Specifically, the transmission parameter of the first SRS resource set may be used as a reference value for the transmission parameter of the first PUSCH. For example, the terminal device may determine an antenna panel used for transmitting the first set of SRS resources as an antenna panel used for transmitting the first PUSCH. Alternatively, the terminal device may determine the transmission beam used for transmitting the SRS on the first set of SRS resources as the transmission beam used for transmitting the first PUSCH. For another example, the terminal device may also add an offset to the power control parameter corresponding to the first SRS resource set, as the power control parameter of the first PUSCH. It should be understood that any of the above listed transmission parameters of the first PUSCH may use the transmission parameters used by the first SRS resource set directly as the transmission parameters of the first PUSCH, or may determine the transmission parameters of the first SRS resource set by modifying the transmission parameters, which is not exemplified herein for brevity.

Optionally, in an embodiment of the present application, the method further includes: the terminal equipment acquires a sounding reference Signal Resource Indication (SRI), wherein the SRI is used for indicating at least one SRS resource in the first SRS resource set; the terminal equipment determines transmission parameters of a first Physical Uplink Shared Channel (PUSCH) according to the first SRS resource set, and the method comprises the following steps: and the terminal equipment determines the transmission parameter of the first PUSCH according to the at least one SRS resource.

Optionally, the SRI may be carried in the first DCI, for example, may be indicated by an SRI indication field in the first DCI. For example, the first SRS resource set includes N SRS resources, the terminal device may send the N SRS resources to the network device, and the network device performs measurement after receiving the N SRS resources, and selects the best K SRS resources and indicates the K SRS resource indexes to the terminal device through SRI. And the terminal equipment determines the transmission parameters of the first PUSCH according to the K SRS resources indicated by the SRI.

For example, the terminal device may determine the number of resources included in at least one SRS resource as the number of transmission layers of the first PUSCH; and/or the terminal device may determine a total port number of the at least one SRS resource as an antenna port number of the first PUSCH; and/or the terminal device may determine a transmission beam used for transmitting the SRS on the at least one SRS resource as the beam for transmitting the first PUSCH; and/or the terminal device may determine a power control parameter corresponding to the at least one SRS resource as a power control parameter of the first PUSCH; and/or the terminal device may determine an antenna panel used for transmitting SRS on the first SRS resource as an antenna panel for transmitting the first PUSCH.

Similarly, the terminal device may modify the transmission parameter of the at least one SRS resource to be used as the transmission parameter of the first PUSCH. It should be understood that any of the above listed transmission parameters of the first PUSCH may use the transmission parameter used by the at least one SRS resource directly as the transmission parameter of the first PUSCH, or may determine the transmission parameter used by the at least one SRS resource by modifying the transmission parameter, which is not illustrated herein for brevity.

The technical scheme of the present application will be described in detail by examples 1 to 3.

Example 1: the terminal receives N CORESETs configured by the network side, and the network side configures at least one corresponding SRS resource set for each CORESET in the N CORESETs respectively.

Optionally, in a network-side implementation, each of the N CORESET respectively corresponds to scheduling information of one TRP or PUSCH transmission on one antenna panel.

Optionally, the network side may configure a parameter corresponding to each CORESET through an RRC parameter controlresosetset. Wherein, a ControlResourceSet may include parameters of a CORESET.

Alternatively, the Transmission Configuration Indicator (TCI) status configurations of different CORESET may be different.

Optionally, the network side may pre-configure multiple SRS resource sets through RRC parameters, each resource set having its own set ID (SRS-ResourceSetId). When configuring the parameters of each CORESET through RRC signaling, the information of the SRS resource set may be directly included in the configuration parameters of CORESET. For example, the SRS resource set ID (SRS-ResourceSetId) corresponding to the CORESET may be indicated in ControlResourceSet. If one CORESET corresponds to multiple SRS resource sets, multiple SRS resource set IDs may be indicated in ControlResourceSet.

Typically, each CORESET may correspond to 2 sets of SRS resources. The usage parameter of one SRS resource set is a codebook (codebook) and is used for PUSCH transmission based on the codebook, and the usage parameter of the other SRS resource set is a non-codebook (non-codebook) and is used for PUSCH transmission based on the non-codebook.

In a specific implementation, only 1 SRS resource set may be configured and only used for PUSCH transmission based on a codebook or based on a non-codebook. In this case, the network side may not configure another MIMO transmission scheme.

Optionally, the terminal may perform DCI detection in each CORESET separately. For example, the terminal detects a first DCI transmitted by the network side in a first CORESET, where the first DCI is used to schedule a first PUSCH.

Optionally, the terminal may determine the transmission parameter of the first PUSCH according to the first SRS resource set corresponding to the first CORESET.

Optionally, if the first CORESET corresponds to multiple SRS resource sets, the terminal determines, according to the MIMO transmission scheme in the first PUSCH configuration parameter set used by the first PUSCH, a first SRS resource set corresponding to the current MIMO transmission scheme from the multiple SRS resource sets corresponding to the first CORESET. It may be assumed here that the first CORESET corresponds to 2 sets of SRS resources. For example, if the MIMO transmission scheme is codebook-based transmission (i.e. RRC parameter txConfig is configured as codebook), the SRS resource set used for codebook transmission (use parameter configured as codebook) in the two SRS resource sets corresponding to the first CORESET is adopted; if the MIMO transmission scheme is codebook-based transmission (i.e. the RRC parameter txConfig is configured as a non codebook), the SRS resource set used for non-codebook transmission (the use parameter is configured as a non codebook) in the two SRS resource sets corresponding to the first CORESET is adopted. Different SRS resource sets are determined for different MIMO transmission schemes, so that the SRS resource configuration can better match the requirements of the corresponding transmission schemes. Optionally, if there is only one SRS resource set corresponding to the first CORESET, the procedure is not required, and the SRS resource set corresponding to the first CORESET is the first SRS resource set. Specifically, if there is no SRS resource set corresponding to the transmission scheme of the first PUSCH in the SRS resource set corresponding to the first CORESET, the terminal may consider that this is an error configuration (error case), so that transmission of the first PUSCH is not required. For example, if the transmission scheme is codebook-based transmission (i.e. the RRC parameter txConfig is configured as codebook), none of the SRS resource sets corresponding to the first CORESET has a usage configured as codebook; for example, if the transmission scheme is non-codebook based transmission (i.e. the RRC parameter txConfig is configured as codebook), none of the SRS resource sets corresponding to the first CORESET has a usage configured as a non-codebook SRS resource set.

Optionally, the terminal may determine parameters included in the transmission parameters according to the MIMO transmission scheme of the first PUSCH. For example, if the transmission scheme of the first PUSCH is codebook-based transmission, the terminal determines a precoding matrix and a transmission beam of the first PUSCH according to the first SRS resource set; and if the transmission scheme of the first PUSCH is non-codebook-based transmission, the terminal determines the number of transmission layers, the precoding matrix and the transmission beam of the first PUSCH according to the first SRS resource set.

Optionally, for any MIMO transmission scheme, the power control parameters and antenna panels for the first PUSCH may be determined from the first set of SRS resources. For example, if one SRS resource set corresponds to an antenna panel of one terminal, the terminal may determine an antenna panel used for transmitting SRS signals in the first SRS resource set as the antenna panel for transmitting the first PUSCH.

Optionally, the first DCI may further include an SRI, where the SRI includes at least one SRS resource index, and is used to indicate at least one SRS resource from one SRS resource set. In this case, the terminal may determine, according to the SRS resource index included in the SRI, a corresponding SRS resource (denoted as a first SRS resource) from the first SRS resource set, and determine a transmission parameter of the first PUSCH according to the first SRS resource. For example, if the first PUSCH is a codebook-based transmission, the number of first SRS resources is 1. And the terminal determines the number of the ports of the first SRS resource as the number of the ports of the first PUSCH, thereby obtaining the codebook corresponding to the corresponding number of the ports. And the terminal determines a target code word from the codebook according to the PMI contained in the first DCI, and the target code word is used as a pre-coding matrix of the first PUSCH. Further, the terminal device uses a transmission beam for transmitting an SRS signal on the first SRS resource as a beam for transmitting the first PUSCH. The transmission beam is also referred to as a Spatial domain transmission filter (Spatial domain transmission filter). For another example, if the first PUSCH is a non-codebook based transmission, the first SRS resource may be one or more SRS resources, here assumed to be K SRS resources. The terminal may determine the number K of the first SRS resources as the number of transmission layers (also referred to as a rank) of the first PUSCH. Further, the terminal may use the precoding matrix and the transmission beam used for transmitting the SRS in the K SRS resources as the precoding matrix and the transmission beam of the K data transmission layers, respectively, where one SRS resource corresponds to one data transmission layer. That is, the K transmission layers and the K SRS resources may use the same antenna port, and the kth transmission layer and the kth SRS resource use the same antenna port. For another example, the terminal device may use an antenna panel used for transmitting SRS on the first SRS resource as an antenna panel for transmitting the first PUSCH.

Alternatively, if the terminal detects DCI for scheduling PUSCH in all N CORESET, for each DCI-scheduled PUSCH, the corresponding transmission parameters may be determined according to the above method. As shown in fig. 10, the present embodiment employs two TRPs (TRP1 and TRP2) to schedule different PUSCHs on different CORESET, respectively. Namely, TRP1 transmits DCI1 on CORESET1 for scheduling PUSCH1, TRP2 transmits DCI2 on CORESET2 for scheduling PUSCH2, where SRS1 is from SRS resource set1 associated with CORESET1, and SRS2 is from SRS resource set2 associated with CORESET 2.

The flow chart corresponding to example 1 is shown in fig. 11.

Based on the method of embodiment 1, when the network side schedules uplink incoherent PUSCH transmission through two TRPs, the network side may configure CORESET for the two TRPs respectively for uplink scheduling, and simultaneously configure SRS resource sets for the two TRPs respectively for uplink beam management and determination of uplink transmission parameters, and associate the CORESET and the SRS resource set of the same TRP through RRC signaling. When uplink transmission is scheduled by using CORESET corresponding to one TRP, the transmission parameters are determined by using the SRS resource set corresponding to the TRP, so that the purpose of independently determining the transmission parameters for the transmission of different TRPs is achieved. The frequency spectrum efficiency of uplink transmission is improved by better matching the transmission parameters with the channel of the TRP. Further, when the terminal is equipped with two antenna panels, the two antenna panels can be respectively used for transmitting uplink signals to different TRPs, and at this time, SRS resource sets configured for different TRPs on the network side can be respectively transmitted on different panels, so that PUSCH transmission parameters determined by the network side can be more accurate by using the same panel for PUSCH transmission and SRS resource set transmission.

Example 2: the terminal receives N search spaces configured by a network side, and the network side configures at least one corresponding SRS resource set for each search space in the N search spaces.

Optionally, in a network-side implementation, a part of the search space corresponds to scheduling information of one TRP or PUSCH transmission on one antenna panel. Another part of the search space corresponds to scheduling information of another TRP or PUSCH transmission on another antenna panel.

Optionally, the network side may configure a parameter corresponding to each search space through an RRC parameter SearchSpace. Wherein a SearchSpace may comprise parameters of a search space.

Optionally, the network side may pre-configure multiple SRS resource sets through RRC parameters, each resource set having its own set ID (SRS-ResourceSetId). When configuring the parameters of each search space through RRC signaling, the information of the SRS resource set may be directly included in the configuration parameters of the search space. For example, the SRS resource set ID (SRS-ResourceSetId) corresponding to the search space may be indicated in SearchSpace. If one search space corresponds to multiple SRS resource sets, multiple SRS resource set IDs may be indicated in SearchSpace.

Typically, each search space may correspond to 2 sets of SRS resources. The usage parameter of one SRS resource set is codebook and is used for PUSCH transmission based on a codebook, and the usage parameter of the other SRS resource set is non-codebook and is used for PUSCH transmission based on a non-codebook.

Optionally, the terminal performs detection of DCI in each search space. For example, the terminal detects a first DCI transmitted by the network side in a first search space, where the first DCI is used to schedule a first PUSCH.

Optionally, the terminal may determine the transmission parameter of the first PUSCH according to the first SRS resource set corresponding to the first search space. The specific method is similar to that of example 1 and will not be described in detail here.

Optionally, if the terminal detects DCI for scheduling the PUSCH in all the N search spaces, for each DCI-scheduled PUSCH, the corresponding transmission parameter needs to be determined according to the above method.

The corresponding flow chart of example 2 is shown in fig. 12.

Based on the method of embodiment 2, when the network side schedules uplink incoherent PUSCH transmission through two TRPs, the two TRPs may be respectively configured with search space sets for uplink scheduling, and simultaneously the two TRPs are respectively configured with SRS resource sets for uplink beam management and uplink transmission parameter determination, and the search space of the same TRP and the SRS resource sets are associated through RRC signaling. When the search space corresponding to one TRP is adopted to schedule uplink transmission, the SRS resource set corresponding to the TRP is adopted to determine transmission parameters, so that the purpose of independently determining the transmission parameters for the transmission of different TRPs is achieved. The frequency spectrum efficiency of uplink transmission is improved by better matching the transmission parameters with the channel of the TRP.

Example 3: and the terminal receives N PUSCH configuration parameter sets configured by the network side, and the network side configures at least one corresponding SRS resource set for each PUSCH configuration parameter set in the plurality of PUSCH configuration parameter sets.

Optionally, in a network-side implementation, each parameter set in the N PUSCH configuration parameter sets may respectively correspond to a PUSCH transmission scheduled with a TRP, or a PUSCH transmission on one antenna panel.

Optionally, the network side may configure each PUSCH configuration parameter set through the RRC parameter PUSCH-config. Wherein, one PUSCH-config contains parameters of one PUSCH configuration parameter set.

Optionally, the network side may pre-configure multiple SRS resource sets through RRC parameters, each resource set having its own set ID (SRS-ResourceSetId). When configuring parameters of a PUSCH configuration parameter set through RRC signaling, the information of the SRS resource set may be directly included in the PUSCH configuration parameter set. For example, the SRS resource set ID (SRS-ResourceSetId) corresponding to the PUSCH configuration parameter set may be indicated in each PUSCH-config. If one PUSCH configuration parameter set corresponds to a plurality of SRS resource sets, a plurality of SRS resource set IDs may be indicated in the PUSCH-config.

In one embodiment, each PUSCH configuration parameter set may correspond/contain 2 sets of SRS resources. The usage parameter of one SRS resource set is codebook and is used for PUSCH transmission based on a codebook, and the usage parameter of the other SRS resource set is non-codebook and is used for PUSCH transmission based on a non-codebook.

In another embodiment, each PUSCH configuration parameter set may correspond to only 1 set of SRS resources.

Alternatively, each PUSCH configuration parameter set (PUSCH-config) may include various PUSCH configuration parameters listed above.

Optionally, the terminal detects a first DCI sent by the network side, where the first DCI is used to schedule a first PUSCH. And the first PUSCH adopts a first PUSCH configuration parameter set to determine used PUSCH configuration parameters. Wherein the N PUSCH configuration parameter sets comprise the first PUSCH configuration parameter set.

Specifically, the terminal may determine, from the N PUSCH configuration parameter sets, the PUSCH configuration parameter set used by the first PUSCH by using the following method:

the terminal may use the PUSCH configuration parameter set corresponding to the CORESET or the search space where the first DCI is located as the first PUSCH configuration parameter set. And the network side pre-configures a PUSCH configuration parameter set corresponding to each CORESET or search space. Alternatively, the first and second electrodes may be,

the terminal may determine the first PUSCH configuration parameter set according to the RNTI used for CRC scrambling of the first DCI, where the first PUSCH configuration parameter set includes information of the RNTI.

Optionally, the terminal may determine the transmission parameter of the first PUSCH according to the SRS resource set corresponding to the first PUSCH configuration parameter set.

Optionally, if the first PUSCH configuration parameter set corresponds to multiple SRS resource sets, the terminal determines, according to the transmission scheme of the first PUSCH, the first SRS resource set corresponding to the current transmission scheme from the multiple SRS resource sets corresponding to the first PUSCH configuration parameter set. It is assumed here that the first PUSCH configuration parameter set corresponds to 2 SRS resource sets. For example, if the transmission scheme is codebook-based transmission (i.e. txConfig in the first PUSCH configuration parameter set is configured as codebook), the SRS resource set used for codebook transmission (usage parameter configuration as codebook) in the two SRS resource sets corresponding to the first PUSCH configuration parameter set is adopted; if the transmission scheme is codebook-based transmission (i.e. txConfig in the first PUSCH configuration parameter set is configured as nocodebook), the SRS resource set used for non-codebook transmission (usage parameter configuration as nocodebook) in the two SRS resource sets corresponding to the first PUSCH configuration parameter set is adopted. Different SRS resource sets are determined for different transmission schemes, so that the configuration of the SRS resources can better match the requirements of the corresponding transmission schemes.

Optionally, if there is only one SRS resource set corresponding to the first PUSCH configuration parameter set, the SRS resource set corresponding to the first PUSCH configuration parameter set is the first SRS resource set. At this time, txConfig configuration in the first PUSCH configuration parameter set and usage configuration of the first SRS resource set need to be consistent. For example, when txConfig in the first PUSCH configuration parameter set indicates codebook-based transmission (codebook), the usage parameter of the respective first SRS resource set needs to be configured as codebook. When txConfig in the first PUSCH configuration parameter set indicates non-codebook based transmission (nocodebook), the usage parameter of the respective first SRS resource set needs to be configured as nocodebook. If the above situation is not satisfied, the terminal may regard this as an error case (error case), and thus does not transmit the first PUSCH.

Optionally, the terminal may determine parameters included in the transmission parameters according to the MIMO transmission scheme of the first PUSCH. Here, similarly to example 1, detailed description is omitted.

Alternatively, if one SRS resource set corresponds to an antenna panel of one terminal, the terminal may determine an antenna panel used for transmitting SRS signals in the first SRS resource set as the antenna panel for transmitting the first PUSCH.

Optionally, the first DCI may further include an SRI, where the SRI includes at least one SRS resource index, and is used to indicate at least one SRS resource from one SRS resource set. At this time, the terminal determines corresponding SRS resources (denoted as first SRS resources) from the first SRS resource set according to the SRS resource index included in the SRI, and determines transmission parameters of the first PUSCH according to the first SRS resources. Here, similarly to example 1, detailed description is omitted.

Optionally, if the terminal detects multiple DCIs simultaneously and each DCI schedules a PUSCH, for each DCI scheduled PUSCH, the corresponding transmission parameters need to be determined according to the above method.

The corresponding flow chart of example 3 is shown in fig. 13.

Based on the method of embodiment 3, when the network side schedules uplink incoherent PUSCH transmission through two TRPs, the network side may configure respective PUSCH configuration parameter sets for the PUSCHs of the two TRPs, simultaneously configure SRS resource sets for the two TRPs respectively for determination of uplink beam management and uplink transmission parameters, and associate the PUSCH configuration parameter sets and the SRS resource sets of the same TRP through RRC signaling. When a PUSCH configuration parameter set corresponding to a TRP is used for PUSCH transmission of the TRP, the transmission parameter is determined by adopting an SRS resource set corresponding to the TRP, so that the purpose of independently determining the transmission parameter for the transmission of different TRPs is achieved. The frequency spectrum efficiency of uplink transmission is improved by better matching the transmission parameters with the channel of the TRP. Further, when the terminal is equipped with two antenna panels, the two antenna panels can be respectively used for transmitting uplink signals to different TRPs, and at this time, SRS resource sets configured for different TRPs on the network side can be respectively transmitted on different panels, so that PUSCH transmission parameters determined by the network side can be more accurate by using the same panel for PUSCH transmission and SRS resource set transmission.

Example 4: the terminal receives N PDCCH configuration parameter sets configured by a network side, and the network side configures at least one corresponding SRS resource set for each parameter set in the N PDCCH configuration parameter sets.

Optionally, in a network-side implementation, a part of the PDCCH configuration parameter set corresponds to scheduling information of one TRP or PUSCH transmission on one antenna panel. Another part of the PDCCH configuration parameter set corresponds to scheduling information of another TRP or PUSCH transmission on another antenna panel.

Optionally, the network side may configure parameters corresponding to each PDCCH configuration parameter set through the RRC parameter PDCCH-config. Wherein, one PDCCH-config may include all parameters corresponding to one PDCCH. For example, one PDCCH-config may contain the following parameters: CORESET configuration, search space configuration, downlink resource reservation configuration, PUSCH TPC configuration, PUCCH TPC configuration and SRS TPC configuration.

Optionally, the network side may pre-configure multiple SRS resource sets through RRC parameters, each resource set having its own set ID (SRS-ResourceSetId). When configuring the parameters of each PDCCH configuration parameter set through RRC signaling, the information of the SRS resource set may be directly included in the parameters of the PDCCH configuration parameter set. For example, the SRS resource set ID (SRS-ResourceSetId) corresponding to the PDCCH configuration parameter set may be indicated in PDCCH-config. If one PDCCH configuration parameter set corresponds to multiple SRS resource sets, multiple SRS resource set IDs may be indicated in PDCCH-config.

Typically, each PDCCH configuration parameter set may correspond to 2 sets of SRS resources. The usage parameter of one SRS resource set is codebook and is used for PUSCH transmission based on a codebook, and the usage parameter of the other SRS resource set is non-codebook and is used for PUSCH transmission based on a non-codebook.

Optionally, the terminal performs DCI detection on the control channels configured in each PDCCH control parameter set. For example, the terminal detects a first DCI transmitted by the network side in the CORESET or the search space in the first PDCCH control parameter set, where the first DCI is used to schedule a first PUSCH.

Optionally, the terminal may determine the transmission parameter of the first PUSCH according to the first SRS resource set corresponding to the first PDCCH control parameter set. The specific method is similar to that of example 1 and will not be described in detail here.

Optionally, if the terminal detects DCI for scheduling a PUSCH in all control channels configured by the N PDCCH control parameter sets, for each DCI-scheduled PUSCH, the corresponding transmission parameter needs to be determined according to the above method.

The corresponding flow chart of example 4 is shown in fig. 14.

Based on the method of embodiment 4, when the network side schedules the uplink non-coherent PDCCH transmission through two TRPs, the network side may configure respective PDCCH configuration parameter sets for the PDCCHs of the two TRPs, simultaneously configure SRS resource sets for the two TRPs, respectively, for uplink beam management and uplink transmission parameter determination, and associate the PDCCH configuration parameter set and the SRS resource set of the same TRP through RRC signaling. When a PDCCH configuration parameter set corresponding to a TRP is adopted for PDCCH transmission of the TRP, an SRS resource set corresponding to the TRP is adopted to determine transmission parameters, so that the purpose of independently determining the transmission parameters for transmission of different TRPs is achieved. The frequency spectrum efficiency of uplink transmission is improved by better matching the transmission parameters with the channel of the TRP. Further, when the terminal is equipped with two antenna panels, the two antenna panels can be respectively used for transmitting uplink signals to different TRPs, and at this time, SRS resource sets configured for different TRPs on the network side can be respectively transmitted on different panels, so that PDCCH transmission parameters determined by the network side can be more accurate by using the same panel for PDCCH transmission and SRS resource sets.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Having described the method for transmitting a signal according to an embodiment of the present application in detail above, an apparatus for transmitting a signal according to an embodiment of the present application will be described below with reference to fig. 15 to 18, and the technical features described in the method embodiment are applicable to the following apparatus embodiments.

Fig. 15 shows a schematic block diagram of a terminal device 500 of an embodiment of the present application. As shown in fig. 15, the terminal device 500 includes:

a processing unit 510, configured to determine a transmission parameter of a first physical uplink shared channel, PUSCH, according to the first SRS resource set;

Optionally, in this embodiment of the present application, the terminal device further includes: a transceiving unit 520, configured to receive configuration information sent by a network device, where the configuration information is used to indicate an SRS resource set corresponding to each control channel in at least one control channel or each PUSCH configuration parameter set in at least one PUSCH configuration parameter set.

Optionally, in this embodiment of the present application, each control channel is associated with one transmission point TRP and/or one antenna panel; and/or associating one TRP and/or one antenna panel per PUSCH configuration parameter set.

Optionally, in an embodiment of the present application, the first control channel or the first PUSCH configuration parameter set is associated with at least one SRS resource set, where the at least one SRS resource set includes the first SRS resource set, and the processing unit is specifically configured to: determining the first SRS resource set from the at least one SRS resource set according to a multiple-input multiple-output, MIMO, transmission scheme for the first PUSCH.

Optionally, in this embodiment of the present application, the at least one SRS resource set includes at least one of the following SRS resource sets: the method comprises the steps of determining a set of SRS resources for codebook transmission, a set of SRS resources for non-codebook transmission, a set of SRS resources for antenna switching, a set of SRS resources for obtaining downlink Channel State Information (CSI) and a set of SRS resources for beam management.

Optionally, in an embodiment of the present application, the processing unit is specifically configured to: if the MIMO transmission scheme of the first PUSCH is codebook-based transmission, determining an SRS resource set used for codebook transmission in the at least one SRS resource set as the first SRS resource set; and if the MIMO transmission scheme of the first PUSCH is transmission based on a non-codebook, determining an SRS resource set used for non-codebook transmission in the at least one SRS resource set as the first SRS resource set.

Optionally, in this embodiment of the present application, the first PUSCH configuration parameter set includes at least one of the following parameters: scrambling identification ID used by data scrambling carried by PUSCH, MIMO transmission scheme used by PUSCH, configuration of demodulation reference signal DMRS of PUSCH, power control parameter, frequency domain frequency hopping configuration, configuration of whether Discrete Fourier Transform (DFT) is carried out, codebook subset constraint configuration, maximum transmission layer number configuration, transmission configuration of uplink control information UCI carried by PUSCH, configuration of whether to allow (pi/2-Binary Phase Shift Keying (BPSK) modulation of DFT conversion, time domain resource configuration of PUSCH, the number of times of PUSCH repetition or aggregation time slot, RBG size of resource block group used by resource allocation and MCS table of modulation and coding strategy used by data transmission.

Optionally, in this embodiment of the present application, the transmission parameter includes at least one parameter of a number of transmission layers, a precoding matrix, a number of antenna ports, a transmission beam, a power control parameter, and an antenna panel.

Optionally, in an embodiment of the present application, the processing unit is further configured to: determining parameters included in the transmission parameters of the first PUSCH according to a multiple-input multiple-output (MIMO) transmission scheme of the first PUSCH.

Optionally, in an embodiment of the present application, the processing unit is specifically configured to: if the MIMO transmission scheme of the first PUSCH is codebook-based transmission, determining that the transmission parameters of the first PUSCH comprise a precoding matrix and a transmission beam; and if the MIMO transmission scheme of the first PUSCH is non-codebook-based transmission, determining that the transmission parameters of the first PUSCH comprise the number of transmission layers, a precoding matrix and a transmission beam.

Optionally, in this embodiment of the present application, the terminal device processing unit is specifically configured to: determining an antenna panel used for transmitting SRS on the first set of SRS resources as an antenna panel transmitting the first PUSCH.

Optionally, in an embodiment of the present application, the processing unit is further configured to: acquiring a sounding reference Signal Resource Indication (SRI), wherein the SRI is used for indicating at least one SRS resource in the first SRS resource set; the processing unit is specifically configured to: and determining the transmission parameters of the first PUSCH according to the at least one SRS resource.

Optionally, in an embodiment of the present application, the processing unit is specifically configured to: determining the number of resources included in the at least one SRS resource as the number of transmission layers of the first PUSCH; and/or determining the total port number of the at least one SRS resource as the antenna port number of the first PUSCH; and/or determining a transmission beam used for transmitting the SRS on the at least one SRS resource as the beam for transmitting the first PUSCH; and/or determining a power control parameter corresponding to the at least one SRS resource as a power control parameter of the first PUSCH; and/or determining an antenna panel used for transmitting the SRS on the at least one SRS resource as an antenna panel for transmitting the first PUSCH.

Optionally, in an embodiment of the present application, the processing unit is specifically configured to: determining a precoding matrix used by the first PUSCH according to the total port number of the at least one SRS resource and a Precoding Matrix Indicator (PMI); or determining a precoding matrix used for transmitting the SRS on the at least one SRS resource as the precoding matrix used for the first PUSCH.

Optionally, in this embodiment of the present application, the first control channel includes a first control resource set, CORESET, a first search space, or a first physical downlink control channel, PDCCH.

Optionally, in this embodiment of the present application, the first PDCCH is a PDCCH determined by a first PDCCH configuration parameter set, where the first PDCCH configuration parameter set includes the following parameters: CORESET configuration, search space configuration, downlink resource reservation configuration, PUSCH Transmission Power Control (TPC) configuration, PUCCH TPC configuration and SRS TPC configuration.

It should be understood that the terminal device 500 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the terminal device 500 are respectively for implementing corresponding flows of the terminal device in the methods of fig. 5 and fig. 7, and are not described herein again for brevity.

Fig. 16 shows a schematic block diagram of a network device 600 of an embodiment of the application. As shown in fig. 16, the network device 600 includes:

a processing unit 610, configured to determine information of first downlink control information DCI according to the first sounding reference signal SRS resource set;

a transceiving unit 620, configured to send the first DCI to a terminal device, where the first DCI is used to schedule a first physical uplink shared channel PUSCH;

wherein a first control channel for carrying the first DCI is associated with the first set of SRS resources, or a first set of PUSCH configuration parameters for the first PUSCH is associated with the first set of SRS resources.

Optionally, in this embodiment of the present application, the transceiver unit is further configured to: and sending configuration information to the terminal equipment, wherein the configuration information is used for indicating each control channel in at least one control channel or the SRS resource set corresponding to each PUSCH configuration parameter set in at least one PUSCH configuration parameter set.

Optionally, in this embodiment of the present application, the first control channel or the first PUSCH configuration parameter set is associated with at least one SRS resource set, the at least one SRS resource set includes the first SRS resource set, and the at least one SRS resource set includes at least one of the following SRS resource sets: the method comprises the steps of determining a set of SRS resources for codebook transmission, a set of SRS resources for non-codebook transmission, a set of SRS resources for antenna switching, a set of SRS resources for obtaining downlink Channel State Information (CSI) and a set of SRS resources for beam management.

Optionally, in this embodiment of the present application, the information of the first DCI includes at least one of a reference Signal Resource Indicator (SRI), a Rank Indicator (RI), a Precoding Matrix Indicator (PMI), and a Modulation and Coding Scheme (MCS), where the SRI is used to indicate at least one SRS resource in the first SRS resource set.

It should be understood that the network device 600 according to the embodiment of the present application may correspond to a network device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the network device 600 are respectively for implementing corresponding flows of the network devices in the methods of fig. 6 and fig. 7, and are not described herein again for brevity.

As shown in fig. 17, the present embodiment also provides a terminal device 700, where the terminal device 700 may be the terminal device 500 in fig. 15, which can be used to execute the content of the terminal device corresponding to each method in fig. 5 and 7. The terminal device 700 shown in fig. 17 comprises a processor 710, and the processor 710 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 17, the terminal device 700 may further include a memory 720. From the memory 720, the processor 710 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 720 may be a separate device from the processor 710, or may be integrated into the processor 710.

Optionally, as shown in fig. 17, the terminal device 700 may further include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 730 may include a transmitter and a receiver, among others. The transceiver 730 may further include an antenna, and the number of antennas may be one or more.

Optionally, the terminal device 700 may be a terminal device according to this embodiment, and the terminal device 700 may implement a corresponding process implemented by the terminal device in each method according to this embodiment, which is not described herein again for brevity.

In a specific embodiment, the transceiver unit in the terminal device 500 may be implemented by the transceiver 730 in fig. 17. The processing unit in the terminal device 500 may be implemented by the processor 710 in fig. 17.

As shown in fig. 18, an embodiment of the present application further provides a network device 800, where the network device 800 may be the network device 600 in fig. 16, and can be used to execute the content of the network device corresponding to each method in fig. 6 and 8. The network device 800 shown in fig. 18 includes a processor 810, and the processor 810 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 18, the network device 800 may further include a memory 820. From the memory 820, the processor 810 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 820 may be a separate device from the processor 810 or may be integrated into the processor 810.

Optionally, as shown in fig. 18, the network device 800 may further include a transceiver 830, and the processor 810 may control the transceiver 830 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 830 may include a transmitter and a receiver, among others. The transceiver 830 may further include one or more antennas.

Optionally, the network device 800 may be a network device according to this embodiment, and the network device 800 may implement a corresponding process implemented by the network device in each method according to this embodiment, which is not described herein again for brevity.

In one particular embodiment, the processing unit in the network device 600 may be implemented by the processor 810 in fig. 18. The transceiving unit in the network device 600 may be implemented by the transceiver 830 in fig. 18.

Fig. 19 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 900 shown in fig. 19 includes a processor 910, and the processor 910 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 19, the chip 900 may further include a memory 920. From the memory 920, the processor 910 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 920 may be a separate device from the processor 910, or may be integrated in the processor 910.

Optionally, the chip 900 may further comprise an input interface 930. The processor 910 may control the input interface 930 to communicate with other devices or chips, and in particular, may obtain information or data transmitted by other devices or chips.

Optionally, the chip 900 may further include an output interface 940. The processor 910 may control the output interface 940 to communicate with other devices or chips, and in particular, may output information or data to the other devices or chips.

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the chip may be applied to the terminal device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.

Fig. 20 is a schematic block diagram of a communication system 1000 provided in an embodiment of the present application. As shown in fig. 20, the communication system 1000 includes a terminal device 1010 and a network device 1020.

The terminal device 1010 may be configured to implement the corresponding function implemented by the terminal device in the foregoing method, and the network device 1020 may be configured to implement the corresponding function implemented by the network device in the foregoing method, for brevity, no further description is provided here.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), Synchronous Link DRAM (SLDRAM), Direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing the computer program.

Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer-readable storage medium may be applied to the terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions enable the computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.

Optionally, the computer program product may be applied to the terminal device in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the computer program may be applied to the terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Those of ordinary skill in the art will appreciate that the various illustrative 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 implementation. 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 present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of transmitting a signal, comprising:

the terminal equipment determines a transmission parameter of a first Physical Uplink Shared Channel (PUSCH) according to the first SRS resource set;

wherein the first set of SRS resources is associated with a first control channel in which first Downlink control information, DCI, is detected, the first DCI being for scheduling the first PUSCH, or

The first set of SRS resources is associated with a first set of PUSCH configuration parameters for the first PUSCH.
The method of claim 1, further comprising:

the terminal device receives configuration information sent by a network device, wherein the configuration information is used for indicating an SRS resource set corresponding to each control channel in at least one control channel or each PUSCH configuration parameter set in at least one PUSCH configuration parameter set.
The method according to claim 2, characterized in that one transmission point TRP and/or one antenna panel is associated with each control channel; and/or

Each PUSCH configuration parameter set is associated with one TRP and/or one antenna panel.
The method of any of claims 1-3, wherein the first control channel or the first PUSCH configuration parameter set is associated with at least one set of SRS resources, wherein the at least one set of SRS resources comprises the first set of SRS resources, wherein the method further comprises:

the terminal device determines the first SRS resource set from the at least one SRS resource set according to the multiple-input multiple-output (MIMO) transmission scheme of the first PUSCH.
The method of claim 4, wherein the at least one SRS resource set comprises at least one of the following SRS resource sets: the method comprises the steps of determining a set of SRS resources for codebook transmission, a set of SRS resources for non-codebook transmission, a set of SRS resources for antenna switching, a set of SRS resources for obtaining downlink Channel State Information (CSI) and a set of SRS resources for beam management.
The method according to claim 4 or 5, wherein the terminal device determines the first SRS resource set from the at least one SRS resource set according to the multiple-input multiple-output, MIMO, transmission scheme for the first PUSCH, comprising:

if the MIMO transmission scheme of the first PUSCH is codebook-based transmission, the terminal device determines, as the first SRS resource set, an SRS resource set used for codebook transmission in the at least one SRS resource set;

if the MIMO transmission scheme of the first PUSCH is non-codebook based transmission, the terminal device determines, as the first SRS resource set, an SRS resource set used for non-codebook transmission in the at least one SRS resource set.
The method according to any of claims 1-6, wherein the first PUSCH configuration parameter set comprises at least one of the following parameters: scrambling identification ID used by data scrambling carried by PUSCH, MIMO transmission scheme used by PUSCH, configuration of demodulation reference signal DMRS of PUSCH, power control parameter, frequency domain frequency hopping configuration, configuration of whether Discrete Fourier Transform (DFT) is carried out, codebook subset constraint configuration, maximum transmission layer number configuration, transmission configuration of uplink control information UCI carried by PUSCH, configuration of whether to allow (pi/2-Binary Phase Shift Keying (BPSK) modulation of DFT conversion, time domain resource configuration of PUSCH, the number of times of PUSCH repetition or aggregation time slot, RBG size of resource block group used by resource allocation and MCS table of modulation and coding strategy used by data transmission.
The method according to any of claims 1 to 7, wherein the transmission parameters comprise at least one of a number of transmission layers, a precoding matrix, a number of antenna ports, a transmission beam, power control parameters, and an antenna panel.
The method according to any one of claims 1 to 8, further comprising:

and the terminal equipment determines parameters included in the transmission parameters of the first PUSCH according to the MIMO transmission scheme of the first PUSCH.
The method of claim 9, wherein the determining, by the terminal device, parameters included in the transmission parameters of the first PUSCH according to the multiple-input multiple-output, MIMO, transmission scheme of the first PUSCH comprises:

if the MIMO transmission scheme of the first PUSCH is codebook-based transmission, the terminal equipment determines that the transmission parameters of the first PUSCH comprise a precoding matrix and a transmission beam;

if the MIMO transmission scheme of the first PUSCH is non-codebook-based transmission, the terminal device determines that the transmission parameters of the first PUSCH include the number of transmission layers, a precoding matrix, and a transmission beam.
The method according to any of claims 1 to 10, wherein the determining, by the terminal device, the transmission parameters of a first physical uplink shared channel, PUSCH, according to the first SRS resource set comprises:

and the terminal equipment determines the antenna panel used for transmitting the SRS on the first SRS resource set as the antenna panel for transmitting the first PUSCH.
The method according to any one of claims 1 to 11, further comprising:

the terminal equipment acquires a sounding reference Signal Resource Indication (SRI), wherein the SRI is used for indicating at least one SRS resource in the first SRS resource set;

the terminal equipment determines transmission parameters of a first Physical Uplink Shared Channel (PUSCH) according to the first SRS resource set, and the method comprises the following steps:

and the terminal equipment determines the transmission parameter of the first PUSCH according to the at least one SRS resource.
The method of claim 12, wherein the determining, by the terminal device, the transmission parameters of the first PUSCH according to the at least one SRS resource comprises:

the terminal equipment determines the number of resources included in the at least one SRS resource as the number of transmission layers of the first PUSCH; and/or

The terminal equipment determines the total port number of the at least one SRS resource as the antenna port number of the first PUSCH; and/or

The terminal equipment determines a transmission beam used for transmitting SRS on the at least one SRS resource as the transmission beam for transmitting the first PUSCH; and/or

The terminal equipment determines a power control parameter corresponding to the at least one SRS resource as a power control parameter of the first PUSCH; and/or

And the terminal equipment determines the antenna panel used for transmitting the SRS on the at least one SRS resource as the antenna panel for transmitting the first PUSCH.
The method according to claim 12 or 13, wherein the determining, by the terminal device, the transmission parameters of the first PUSCH according to the at least one SRS resource comprises:

the terminal equipment determines a precoding matrix used by the first PUSCH according to the total port number of the at least one SRS resource and a Precoding Matrix Indicator (PMI); or

And the terminal equipment determines a precoding matrix used for transmitting the SRS on the at least one SRS resource as the precoding matrix used by the first PUSCH.
The method of any one of claims 1 to 14, wherein the first control channel comprises a first control resource set, CORESET, a first search space, or a first physical downlink control channel, PDCCH.
The method of claim 15, wherein the first PDCCH is determined by a first PDCCH configuration parameter set, and wherein the first PDCCH configuration parameter set comprises the following parameters: CORESET configuration, search space configuration, downlink resource reservation configuration, PUSCH Transmission Power Control (TPC) configuration, PUCCH TPC configuration and SRS TPC configuration.
A method of transmitting a signal, comprising:

the network equipment determines the information of first Downlink Control Information (DCI) according to the first SRS resource set;

the network equipment sends the first DCI to terminal equipment, wherein the first DCI is used for scheduling a first Physical Uplink Shared Channel (PUSCH);

wherein a first control channel for carrying the first DCI is associated with the first set of SRS resources, or a first set of PUSCH configuration parameters for the first PUSCH is associated with the first set of SRS resources.
The method of claim 17, further comprising:

the network equipment sends configuration information to the terminal equipment, wherein the configuration information is used for indicating each control channel in at least one control channel or an SRS resource set corresponding to each PUSCH configuration parameter set in at least one PUSCH configuration parameter set.
The method according to claim 18, characterized in that one transmission point TRP and/or one antenna panel is associated with each control channel; and/or

Each PUSCH configuration parameter set is associated with one TRP and/or one antenna panel.
The method according to any of claims 17-19, wherein the first control channel or the first PUSCH configuration parameter set is associated with at least one SRS resource set, wherein the at least one SRS resource set comprises the first SRS resource set, wherein the at least one SRS resource set comprises at least one of the following SRS resource sets: the method comprises the steps of determining a set of SRS resources for codebook transmission, a set of SRS resources for non-codebook transmission, a set of SRS resources for antenna switching, a set of SRS resources for obtaining downlink Channel State Information (CSI) and a set of SRS resources for beam management.
The method according to any of claims 17-20, wherein the first PUSCH configuration parameter set comprises at least one of the following parameters: scrambling identification ID used by data scrambling carried by PUSCH, MIMO transmission scheme used by PUSCH, configuration of demodulation reference signal DMRS of PUSCH, power control parameter, frequency domain frequency hopping configuration, configuration of whether Discrete Fourier Transform (DFT) is carried out, codebook subset constraint configuration, maximum transmission layer number configuration, transmission configuration of uplink control information UCI carried by PUSCH, configuration of whether to allow (pi/2-Binary Phase Shift Keying (BPSK) modulation of DFT conversion, time domain resource configuration of PUSCH, the number of times of PUSCH repetition or aggregation time slot, RBG size of resource block group used by resource allocation and MCS table of modulation and coding strategy used by data transmission.
The method of any of claims 17-21, wherein the information of the first DCI comprises at least one of a reference Signal Resource Indication (SRI), a Rank Indication (RI), a Precoding Matrix Indication (PMI), and a Modulation and Coding Strategy (MCS), wherein the SRI is used to indicate at least one SRS resource in the first set of SRS resources.
The method of any one of claims 17 to 22, wherein the first control channel comprises a first control resource set, CORESET, a first search space, or a first physical downlink control channel, PDCCH.
The method of claim 23, wherein the first PDCCH is determined by a first PDCCH configuration parameter set, and wherein the first PDCCH configuration parameter set comprises the following parameters: CORESET configuration, search space configuration, downlink resource reservation configuration, PUSCH Transmission Power Control (TPC) configuration, PUCCH TPC configuration and SRS TPC configuration.
A terminal device, comprising:

a processing unit, configured to determine a transmission parameter of a first physical uplink shared channel, PUSCH, according to the first SRS resource set;

wherein the first set of SRS resources is associated with a first control channel in which first Downlink control information, DCI, is detected, the first DCI being for scheduling the first PUSCH, or

The first set of SRS resources is associated with a first set of PUSCH configuration parameters for the first PUSCH.
The terminal device of claim 25, wherein the terminal device further comprises:

a transceiving unit, configured to receive configuration information sent by a network device, where the configuration information is used to indicate an SRS resource set corresponding to each control channel in at least one control channel or each PUSCH configuration parameter set in at least one PUSCH configuration parameter set.
The terminal device according to claim 26, characterized in that each control channel is associated with one transmission point TRP and/or one antenna panel; and/or

Each PUSCH configuration parameter set is associated with one TRP and/or one antenna panel.
The terminal device of any of claims 25 to 27, wherein the first control channel or the first PUSCH configuration parameter set is associated with at least one SRS resource set, wherein the at least one SRS resource set comprises the first SRS resource set, wherein the processing unit is specifically configured to:

determining the first SRS resource set from the at least one SRS resource set according to a multiple-input multiple-output, MIMO, transmission scheme for the first PUSCH.
The terminal device of claim 28, wherein the at least one SRS resource set comprises at least one of the following SRS resource sets: the method comprises the steps of determining a set of SRS resources for codebook transmission, a set of SRS resources for non-codebook transmission, a set of SRS resources for antenna switching, a set of SRS resources for obtaining downlink Channel State Information (CSI) and a set of SRS resources for beam management.
The terminal device according to claim 28 or 29, wherein the processing unit is specifically configured to:

if the MIMO transmission scheme of the first PUSCH is codebook-based transmission, determining an SRS resource set used for codebook transmission in the at least one SRS resource set as the first SRS resource set;

and if the MIMO transmission scheme of the first PUSCH is transmission based on a non-codebook, determining an SRS resource set used for non-codebook transmission in the at least one SRS resource set as the first SRS resource set.
The terminal device according to any of claims 25-30, wherein the first PUSCH configuration parameter set comprises at least one of the following parameters: scrambling identification ID used by data scrambling carried by PUSCH, MIMO transmission scheme used by PUSCH, configuration of demodulation reference signal DMRS of PUSCH, power control parameter, frequency domain frequency hopping configuration, configuration of whether Discrete Fourier Transform (DFT) is carried out, codebook subset constraint configuration, maximum transmission layer number configuration, transmission configuration of uplink control information UCI carried by PUSCH, configuration of whether to allow (pi/2-Binary Phase Shift Keying (BPSK) modulation of DFT conversion, time domain resource configuration of PUSCH, the number of times of PUSCH repetition or aggregation time slot, RBG size of resource block group used by resource allocation and MCS table of modulation and coding strategy used by data transmission.
The terminal device according to any of claims 25 to 31, wherein the transmission parameters comprise at least one of a number of transmission layers, a precoding matrix, a number of antenna ports, a transmission beam, power control parameters and an antenna panel.
The terminal device of any of claims 25-32, wherein the processing unit is further configured to:

determining parameters included in the transmission parameters of the first PUSCH according to a multiple-input multiple-output (MIMO) transmission scheme of the first PUSCH.
The terminal device of claim 33, wherein the processing unit is specifically configured to:

if the MIMO transmission scheme of the first PUSCH is codebook-based transmission, determining that the transmission parameters of the first PUSCH comprise a precoding matrix and a transmission beam;

and if the MIMO transmission scheme of the first PUSCH is non-codebook-based transmission, determining that the transmission parameters of the first PUSCH comprise the number of transmission layers, a precoding matrix and a transmission beam.
The terminal device according to any one of claims 25 to 34, wherein the terminal device processing unit is specifically configured to:

determining an antenna panel used for transmitting SRS on the first set of SRS resources as an antenna panel transmitting the first PUSCH.
The terminal device of any of claims 25-35, wherein the processing unit is further configured to:

acquiring a sounding reference Signal Resource Indication (SRI), wherein the SRI is used for indicating at least one SRS resource in the first SRS resource set;

the processing unit is specifically configured to:

and determining the transmission parameters of the first PUSCH according to the at least one SRS resource.
The terminal device of claim 36, wherein the processing unit is specifically configured to:

determining the number of resources included in the at least one SRS resource as the number of transmission layers of the first PUSCH; and/or

Determining the total port number of the at least one SRS resource as the antenna port number of the first PUSCH; and/or

Determining a transmission beam used for transmitting SRS on the at least one SRS resource as a beam for transmitting the first PUSCH; and/or

Determining a power control parameter corresponding to the at least one SRS resource as a power control parameter of the first PUSCH; and/or

And determining an antenna panel used for transmitting the SRS on the at least one SRS resource as the antenna panel for transmitting the first PUSCH.
The terminal device according to claim 36 or 37, wherein the processing unit is specifically configured to:

determining a precoding matrix used by the first PUSCH according to the total port number of the at least one SRS resource and a Precoding Matrix Indicator (PMI); or

And determining a precoding matrix used for transmitting the SRS on the at least one SRS resource as the precoding matrix used for the first PUSCH.
The terminal device of any one of claims 25 to 38, wherein the first control channel comprises a first control resource set, CORESET, a first search space, or a first physical downlink control channel, PDCCH.
The terminal device of claim 39, wherein the first PDCCH is a PDCCH determined by a first PDCCH configuration parameter set, and wherein the first PDCCH configuration parameter set comprises the following parameters: CORESET configuration, search space configuration, downlink resource reservation configuration, PUSCH Transmission Power Control (TPC) configuration, PUCCH TPC configuration and SRS TPC configuration.
A network device, comprising:

a processing unit, configured to determine information of first downlink control information DCI according to a first sounding reference signal SRS resource set;

a transceiving unit, configured to send the first DCI to a terminal device, where the first DCI is used to schedule a first physical uplink shared channel PUSCH;

wherein a first control channel for carrying the first DCI is associated with the first set of SRS resources, or a first set of PUSCH configuration parameters for the first PUSCH is associated with the first set of SRS resources.
The network device of claim 41, wherein the transceiver unit is further configured to:

and sending configuration information to the terminal equipment, wherein the configuration information is used for indicating each control channel in at least one control channel or the SRS resource set corresponding to each PUSCH configuration parameter set in at least one PUSCH configuration parameter set.
The network device according to claim 42, wherein each control channel is associated with one transmission point TRP and/or one antenna panel; and/or

Each PUSCH configuration parameter set is associated with one TRP and/or one antenna panel.
The network device of any of claims 41 to 43, wherein the first control channel or the first PUSCH configuration parameter set is associated with at least one set of SRS resources, wherein the at least one set of SRS resources comprises the first set of SRS resources, wherein the at least one set of SRS resources comprises at least one of the following sets of SRS resources: the method comprises the steps of determining a set of SRS resources for codebook transmission, a set of SRS resources for non-codebook transmission, a set of SRS resources for antenna switching, a set of SRS resources for obtaining downlink Channel State Information (CSI) and a set of SRS resources for beam management.
The network device of any of claims 41 to 44, wherein the first set of PUSCH configuration parameters comprises at least one of: scrambling identification ID used by data scrambling carried by PUSCH, MIMO transmission scheme used by PUSCH, configuration of demodulation reference signal DMRS of PUSCH, power control parameter, frequency domain frequency hopping configuration, configuration of whether Discrete Fourier Transform (DFT) is carried out, codebook subset constraint configuration, maximum transmission layer number configuration, transmission configuration of uplink control information UCI carried by PUSCH, configuration of whether to allow (pi/2-Binary Phase Shift Keying (BPSK) modulation of DFT conversion, time domain resource configuration of PUSCH, the number of times of PUSCH repetition or aggregation time slot, RBG size of resource block group used by resource allocation and MCS table of modulation and coding strategy used by data transmission.
The network device of any one of claims 41 to 45, wherein the information of the first DCI comprises at least one of a reference Signal Resource Indication (SRI), a Rank Indication (RI), a Precoding Matrix Indication (PMI), and a Modulation and Coding Strategy (MCS), wherein the SRI is used to indicate at least one SRS resource in the first set of SRS resources.
The network device of any one of claims 41 to 46, wherein the first control channel comprises a first control resource set (CORESET), a first search space, or a first Physical Downlink Control Channel (PDCCH).
The network device of claim 47, wherein the first PDCCH is a PDCCH determined by a first PDCCH configuration parameter set, wherein the first PDCCH configuration parameter set comprises the following parameters: CORESET configuration, search space configuration, downlink resource reservation configuration, PUSCH Transmission Power Control (TPC) configuration, PUCCH TPC configuration and SRS TPC configuration.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 1 to 16.
A network device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 17 to 24.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 1 to 16.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 17 to 24.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 1 to 16.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 17 to 24.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 16.
A computer program product comprising computer program instructions to cause a computer to perform the method of any of claims 17 to 24.
A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 1 to 16.
A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 17-24.