Determination method and apparatus, communication device, communication system, and storage medium

Abstract

The present disclosure provides a determination method and apparatus, a device, and a storage medium. The method comprises: when a transmission scheme is that a physical uplink shared channel (PUSCH) performs multi-transmission reception point (MTRP) transmission in an uplink simultaneous transmission across multi-antenna panels (STxMP) configuration scenario, on the basis of at least one of a transmission mode, a maximum number of transmission layers, and a maximum number of phase tracking reference signal (PTRS) ports, determining a bit width and / or an indication method of a first DCI indicator field, wherein the DCI indicator field is used for indicating an association relationship between ports. The embodiments of the present disclosure provide a method for "how to determine a bit width and / or an indication method of a DCI indicator field", so that when a terminal and a network device perform MTRP transmission in an uplink STxMP configuration scenario, a bit width and / or an indication method of a DCI indicator field may be determined, thereby implementing successful transmission and parsing of the DCI indicator field, and ensuring that an association relationship between ports may be successfully indicated.

Description

Determination method and device, communication equipment, communication system, storage medium Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a determination method and apparatus, a communication device, a communication system, and a storage medium. Background Art

[0002] In communication systems, terminals typically perform multi-transmission reception point (MTRP) transmission. During MTRP transmission, network equipment typically needs to indicate to the terminal the association between a demodulation reference signal (DMRS) port and a phase tracking reference signal (PTRS) port via an indication field in downlink control information (DCI) signaling. Determining the bit width of the indication field in MTRP transmission and determining the indication method used when the indication field indicates the association between a DMRS port and a PTRS port are technical issues that urgently need to be addressed.

[0003] Summary of the Invention

[0004] The present disclosure proposes a determination method and apparatus, a communication device, a communication system, and a storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a determination method is proposed, including:

[0006] When the transmission scheme is that the physical uplink shared channel PUSCH performs multi-transmitting and receiving point MTRP transmission in the uplink multi-antenna panel simultaneous transmission STxMP configuration scenario, the bit width and / or indication method of the first DCI indication field is determined based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of phase tracking reference signal PTRS ports. The DCI indication field is used to indicate the association relationship between the ports.

[0007] According to a second aspect of an embodiment of the present disclosure, a determination method is proposed, including:

[0008] When the transmission scheme is that PUSCH performs MTRP transmission in an uplink STxMP configuration scenario, the network device determines the bit width and / or indication method of the first DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of phase tracking reference signal PTRS ports, where the DCI indication field is used to indicate the association relationship between ports;

[0009] When the transmission scheme is that PUSCH performs MTRP transmission in the uplink STxMP configuration scenario, the terminal determines the bit width and / or indication method of the first DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of phase tracking reference signal PTRS ports, and the DCI indication field is used to indicate the association relationship between ports.

[0010] According to a third aspect of an embodiment of the present disclosure, a device is provided, including:

[0011] A determination module is used to determine the bit width and / or indication method of the first DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of phase tracking reference signal PTRS ports when the transmission scheme is that the physical uplink shared channel PUSCH performs multi-transmitting and receiving point MTRP transmission in the uplink multi-antenna panel simultaneous transmission STxMP configuration scenario. The DCI indication field is used to indicate the association relationship between ports.

[0012] According to a fourth aspect of an embodiment of the present disclosure, a communication device is provided, including:

[0013] one or more processors;

[0014] The processor is used to call instructions to enable the communication device to execute the determination method described in the first aspect.

[0015] According to a fifth aspect of an embodiment of the present disclosure, a communication system is proposed, characterized in that it includes a terminal and a network device, wherein the terminal is configured to implement the determination method described in the first aspect, and the network device is configured to implement the determination method described in the first aspect.

[0016] According to a sixth aspect of an embodiment of the present disclosure, a storage medium is proposed, wherein the storage medium stores instructions, and is characterized in that when the instructions are executed on a communication device, the communication device executes the determination method as described in the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0018] FIG1 is a schematic diagram of the architecture of some communication systems provided by embodiments of the present disclosure;

[0019] FIG2A is an interactive schematic diagram of a determination method provided by an embodiment of the present disclosure;

[0020] 3A-3B are flowcharts of a determination method provided in yet another embodiment of the present disclosure;

[0021] 4A-4B are flowchart diagrams of a determination method provided in yet another embodiment of the present disclosure;

[0022] FIG5 is a flow chart of a determination method provided in yet another embodiment of the present disclosure;

[0023] FIG6A is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

[0024] FIG7A is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

[0025] FIG7B is a schematic structural diagram of a chip provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0026] The embodiments of the present disclosure provide a determination method and apparatus, a communication device, a communication system, and a storage medium.

[0027] In a first aspect, an embodiment of the present disclosure provides a determination method, the method comprising:

[0028] When the transmission scheme is that the physical uplink shared channel PUSCH performs multi-transmitting and receiving point MTRP transmission in the uplink multi-antenna panel simultaneous transmission STxMP configuration scenario, the bit width and / or indication method of the first DCI indication field is determined based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of phase tracking reference signal PTRS ports. The DCI indication field is used to indicate the association relationship between the ports.

[0029] In the above embodiment, when PUSCH performs MTRP transmission in an uplink simultaneous transmission across multiple panels (STxMP) configuration scenario, the terminal or network device determines the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports, and the DCI indication field is used to indicate the association relationship between the ports. It can be seen that the embodiment of the present disclosure provides a method of "how to determine the bit width and / or indication method of the DCI indication field", so that when the terminal and the network device perform MTRP transmission in an uplink STxMP configuration scenario, the bit width and / or indication method of the DCI indication field can be determined, thereby achieving successful transmission and parsing of the DCI indication field, ensuring that the association relationship between the ports can be successfully indicated.

[0030] In conjunction with some embodiments of the first aspect, in some embodiments, the MTRP transmission in the STxMP configuration scenario includes: two antenna panels of the terminal simultaneously sending PUSCHs in two different TRP directions, wherein the PUSCH transmissions in different TRP directions are associated with different sounding reference signal SRS resource sets and different transmission configuration indication states TCI states;

[0031] In conjunction with some embodiments of the first aspect, in some embodiments, the transmission mode includes: spatial division multiplexing SDM transmission or single frequency network SFN transmission;

[0032] In combination with some embodiments of the first aspect, in some embodiments, the association relationship between the ports includes: an association relationship between a PTRS port and a demodulation reference signal DMRS port.

[0033] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0034] Determine MTRP transmission based on the Sounding Reference Signal Resource Set Indication (SRI) field in the DCI signaling;

[0035] In combination with some embodiments of the first aspect, in some embodiments, the transmission mode of the MTRP is determined to be SDM transmission or SFN transmission based on radio resource control RRC signaling.

[0036] In the above embodiments, it is usually determined first whether it is MTRP transmission, and whether the transmission mode of MTRP transmission is SDM transmission or SFN transmission, so that when it is MTRP transmission, the bit width and / or indication method of the corresponding DCI indication field can be determined based on the transmission mode of MTRP transmission, thereby achieving successful transmission and parsing of the DCI indication field, ensuring that the association relationship between ports can be successfully indicated.

[0037] In conjunction with some embodiments of the first aspect, in some embodiments, the maximum number of transmission layers is: the maximum number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state;

[0038] The maximum number of PTRS ports is: the maximum number of PTRS ports sent by the terminal, wherein the number of PTRS ports corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states of the terminal is the same.

[0039] In combination with some embodiments of the first aspect, in some embodiments, when the transmission mode is SDM transmission, the maximum number of PTRS ports is 2, the actual number of PTRS ports sent by the terminal is 2, each SRS resource set, or each TRP, or each antenna panel, or each TCI state corresponds to a PTRS port, and different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states correspond to different PTRS ports for transmission.

[0040] In combination with some embodiments of the first aspect, in some embodiments, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0041] The transmission mode is SDM transmission, the maximum number of transmission layers configured for the SDM transmission is 1, the actual number of PTRS ports sent by the terminal is 2, and the bit width and / or indication method of the DCI indication field is determined as any one of the following:

[0042] The bit width of the DCI indication field is 0 bits;

[0043] The bit width of the DCI indication field is 2 bits, the high-order bit MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the low-order bit LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 1 corresponding to the second TCI state in the STxMP configuration scenario;

[0044] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate an SRS resource set, or a TRP, or an antenna panel, or a DMRS port associated with a PTRS port corresponding to a TCI state in an STxMP configuration scenario.

[0045] In the above embodiment, for the case where the transmission mode is SDM transmission and the maximum number of transmission layers configured for SDM transmission is 1, a method for "how to determine the bit width and / or indication method of the DCI indication field" is provided. This allows terminals and network devices to determine the bit width and / or indication method of the DCI indication field when the transmission mode is SDM transmission and the maximum number of transmission layers configured for SDM transmission is 1, thereby achieving successful transmission and parsing of the DCI indication field and ensuring that the association relationship between ports can be successfully indicated. Furthermore, in some embodiments, the DCI indication field can be 0 bits, which can save signaling overhead and conserve resources.

[0046] In combination with some embodiments of the first aspect, in some embodiments, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0047] The transmission mode is SDM transmission. When the maximum number of transmission layers configured for SDM transmission is 2, the actual number of PTRS ports sent by the terminal is 2. Determine the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state;

[0048] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, the bit width of the DCI indication field is determined to be 2 bits, and the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state in the STxMP configuration scenario;

[0049] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0050] The bit width of the DCI indication field is 0 bits;

[0051] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 1 corresponding to the second TCI state in the STxMP configuration scenario;

[0052] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate an SRS resource set, or a TRP, or an antenna panel, or a DMRS port associated with a PTRS port corresponding to a TCI state in an STxMP configuration scenario;

[0053] When the actual number of transmission layers corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state is 1, and the actual number of transmission layers corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state is 2; or, when the actual number of transmission layers corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state is 2, and the actual number of transmission layers corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0054] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 1 corresponding to the second TCI state in the STxMP configuration scenario;

[0055] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate the SRS resource set with an actual transmission layer number of 2, or the TRP with an actual transmission layer number of 2, or the antenna panel with an actual transmission layer number of 2, or the DMRS port associated with the PTRS port corresponding to the TCI state with an actual transmission layer number of 2.

[0056] In the above embodiment, for the case where the transmission mode is SDM transmission and the maximum number of transmission layers configured corresponding to SDM transmission is 2, a method of "how to determine the bit width and / or indication method of the DCI indication field" is provided, so that the terminal and the network device can determine the bit width and / or indication method of the DCI indication field when the transmission mode is SDM transmission and the maximum number of transmission layers configured corresponding to SDM transmission is 2, thereby achieving successful transmission and parsing of the DCI indication field, ensuring that the association relationship between ports can be successfully indicated.

[0057] In combination with some embodiments of the first aspect, in some embodiments, when the transmission mode is SFN transmission, the number of PTRS ports corresponding to the different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is the same, and the same PTRS port corresponding to the different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same or different DMRS ports.

[0058] In combination with some embodiments of the first aspect, in some embodiments, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0059] The transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 1, and when the maximum number of PTRS ports configured for the SFN transmission is 1, the actual number of PTRS ports sent by the terminal is 1, and the bit width and / or indication method of the DCI indication field are determined as any one of the following:

[0060] The bit width of the DCI indication field is 0 bits;

[0061] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0062] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate an SRS resource set, or a TRP, or an antenna panel, or a DMRS port associated with a PTRS port corresponding to a TCI state in an STxMP configuration scenario.

[0063] In the above embodiment, for the situation that "the transmission mode is SFN transmission, the maximum number of transmission layers configured corresponding to SFN transmission is 1, and the maximum number of PTRS ports configured corresponding to SFN transmission is 1", a method of "how to determine the bit width and / or indication method of the DCI indication field" is provided, so that when the transmission mode is SFN transmission, the maximum number of transmission layers configured corresponding to SFN transmission is 1, and the maximum number of PTRS ports configured corresponding to SFN transmission is 1, the terminal and the network device can determine the bit width and / or indication method of the DCI indication field, thereby achieving successful transmission and parsing of the DCI indication field, and ensuring that the association relationship between the ports can be successfully indicated.

[0064] In combination with some embodiments of the first aspect, in some embodiments, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0065] The transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 2, and when the maximum number of PTRS ports configured for the SFN transmission is 1, the actual number of PTRS ports sent by the terminal is 1. Determine the actual number of transmission layers for each SRS resource set, or each TRP, or each antenna panel, or each TCI state;

[0066] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0067] The bit width of the DCI indication field is 0 bits;

[0068] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0069] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate an SRS resource set, or a TRP, or an antenna panel, or a DMRS port associated with a PTRS port corresponding to a TCI state in an STxMP configuration scenario;

[0070] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same DMRS port, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0071] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario;

[0072] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the first SRS resource set in the STxMP configuration scenario, or the first TRP, or the first antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the first TCI state, and the LSB of the DCI indication field indicates the second SRS resource set in the STxMP configuration scenario, or the second TRP, or the second antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the second TCI state.

[0073] In combination with some embodiments of the first aspect, in some embodiments, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0074] The transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 2, and when the maximum number of PTRS ports configured for the SFN transmission is 1, the actual number of PTRS ports sent by the terminal is 1. Determine the actual number of transmission layers for each SRS resource set, or each TRP, or each antenna panel, or each TCI state;

[0075] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with different DMRS ports, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0076] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates another DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0077] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario.

[0078] In the above embodiment, for the situation that "the transmission mode is SFN transmission, the maximum number of transmission layers configured corresponding to SFN transmission is 2, and the maximum number of PTRS ports configured corresponding to SFN transmission is 1", a method of "how to determine the bit width and / or indication method of the DCI indication field" is provided, so that when the transmission mode is SFN transmission, the maximum number of transmission layers configured corresponding to SFN transmission is 2, and the maximum number of PTRS ports configured corresponding to SFN transmission is 1, the terminal and the network device can determine the bit width and / or indication method of the DCI indication field, thereby achieving successful transmission and parsing of the DCI indication field, and ensuring that the association relationship between the ports can be successfully indicated.

[0079] In combination with some embodiments of the first aspect, in some embodiments, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0080] When the transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 2, and the maximum number of PTRS ports configured for the SFN transmission is 2, determining the actual number of PTRS ports sent by the terminal;

[0081] If the actual number of PTRS ports sent by the terminal is 1, determine the actual number of transmission layers for each SRS resource set, or each TRP, or each antenna panel, or each TCI state;

[0082] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0083] The bit width of the DCI indication field is 0 bits;

[0084] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0085] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate the DMRS port associated with the PTRS port 0 corresponding to an SRS resource set, or a TRP, or an antenna panel, or a TCI state in the STxMP configuration scenario;

[0086] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same DMRS port, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0087] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario;

[0088] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0089] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with different DMRS ports, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0090] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates another DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0091] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario.

[0092] In combination with some embodiments of the first aspect, in some embodiments, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0093] When the transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 2, and the maximum number of PTRS ports configured for the SFN transmission is 2, determining the actual number of PTRS ports sent by the terminal;

[0094] When the actual number of PTRS ports sent by the terminal is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same DMRS port, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0095] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario;

[0096] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponding to the PTRS port 0 in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 1 corresponding to the first TCI state in the STxMP configuration scenario;

[0097] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the first SRS resource set, or the first TRP, or the first antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the second SRS resource set, or the second TRP, or the second antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0098] The bit width of the DCI indication field is 4 bits. The first two bits of the DCI indication field indicate the DMRS ports associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the two PTRS ports corresponding to the first TCI state in the STxMP configuration scenario. The last two bits of the DCI indication field indicate the DMRS ports associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the two PTRS ports corresponding to the second TCI state in the STxMP configuration scenario.

[0099] In combination with some embodiments of the first aspect, in some embodiments, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0100] When the transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 2, and the maximum number of PTRS ports configured for the SFN transmission is 2, determining the actual number of PTRS ports sent by the terminal;

[0101] When the actual number of PTRS ports sent by the terminal is 2, if different SRS resource sets, or different TRPs, or different antenna panels, or the same PTRS port corresponding to different TCI states is associated with different DMRS ports, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0102] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the first SRS resource set, or the first TRP, or the first antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the second SRS resource set, or the second TRP, or the second antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0103] The bit width of the DCI indication field is 4 bits. The first two bits of the DCI indication field indicate the DMRS ports associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the two PTRS ports corresponding to the first TCI state in the STxMP configuration scenario. The last two bits of the DCI indication field indicate the DMRS ports associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the two PTRS ports corresponding to the second TCI state in the STxMP configuration scenario.

[0104] In the above embodiment, for the situation that "the transmission mode is SFN transmission, the maximum number of transmission layers configured corresponding to SFN transmission is 2, and the maximum number of PTRS ports configured corresponding to SFN transmission is 2", a method of "how to determine the bit width and / or indication method of the DCI indication field" is provided, so that when the transmission mode is SFN transmission, the maximum number of transmission layers configured corresponding to SFN transmission is 2, and the maximum number of PTRS ports configured corresponding to SFN transmission is 2, the terminal and the network device can determine the bit width and / or indication method of the DCI indication field, thereby achieving successful transmission and parsing of the DCI indication field, and ensuring that the association relationship between the ports can be successfully indicated.

[0105] In conjunction with some embodiments of the first aspect, in some embodiments, determining the actual PTRS port number sent by the terminal includes:

[0106] Determine a target SRS resource set, a target TRP, a target antenna panel, or a target TCI state from two SRS resource sets, two TRPs, two antenna panels, or two TCI states based on at least one of a predefined rule, a network configuration, and a network indication;

[0107] The actual PTRS port number of the target SRS resource set, or the target TRP, or the target antenna panel, or the target TCI state is determined as the actual PTRS port number sent by the terminal.

[0108] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0109] When SFN transmission is performed based on the codebook, the actual number of PTRS ports of the target SRS resource set, target TRP, target antenna panel, or target TCI state is determined based on the precoding matrix indication TPMI configured by the network device for the target SRS resource set, target TRP, target antenna panel, or target TCI state;

[0110] When SFN transmission is performed based on a non-codebook, the actual number of PTRS ports of the target SRS resource set, target TRP, target antenna panel, or target TCI state is determined based on the PTRS index (PTRS index) indicated by the SRI field corresponding to the target SRS resource set, target TRP, target antenna panel, or target TCI state in the DCI signaling.

[0111] In the above embodiment, a method of “how to determine the actual number of PTRS ports sent by the terminal” is provided so that the terminal and the network device can determine the actual number of PTRS ports sent by the terminal, and determine the bit width and / or indication method of the DCI indication field based on the determined actual number of PTRS ports sent by the terminal, thereby achieving successful transmission and parsing of the DCI indication field, ensuring that the association relationship between the ports can be successfully indicated.

[0112] In a second aspect, an embodiment of the present disclosure provides a determination method for a communication system, wherein the communication system includes a terminal and a network device, and the method includes at least one of the following:

[0113] When the transmission scheme is that PUSCH performs MTRP transmission in an uplink STxMP configuration scenario, the network device determines the bit width and / or indication method of the first DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of phase tracking reference signal PTRS ports, where the DCI indication field is used to indicate the association relationship between ports;

[0114] When the transmission scheme is that PUSCH performs MTRP transmission in the uplink STxMP configuration scenario, the terminal determines the bit width and / or indication method of the first DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of phase tracking reference signal PTRS ports, and the DCI indication field is used to indicate the association relationship between ports.

[0115] In a third aspect, an embodiment of the present disclosure provides a device, including:

[0116] A determination module is used to determine the bit width and / or indication method of the first DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of phase tracking reference signal PTRS ports when the transmission scheme is that the physical uplink shared channel PUSCH performs multi-transmitting and receiving point MTRP transmission in the uplink multi-antenna panel simultaneous transmission STxMP configuration scenario. The DCI indication field is used to indicate the association relationship between ports.

[0117] In conjunction with some embodiments of the third aspect, in some embodiments, the MTRP transmission in the STxMP configuration scenario includes: two antenna panels of the terminal simultaneously sending PUSCHs in two different TRP directions, wherein the PUSCH transmissions in different TRP directions are associated with different sounding reference signal SRS resource sets and different transmission configuration indication states TCI states;

[0118] In conjunction with some embodiments of the third aspect, in some embodiments, the transmission mode includes: spatial division multiplexing SDM transmission or single frequency network SFN transmission;

[0119] In combination with some embodiments of the third aspect, in some embodiments, the association relationship between the ports includes: indicating an association relationship between a PTRS port and a demodulation reference signal DMRS port.

[0120] In conjunction with some embodiments of the third aspect, in some embodiments, the device is further used for:

[0121] Determine MTRP transmission based on the sounding reference signal SRI field in the DCI signaling;

[0122] In combination with some embodiments of the third aspect, in some embodiments, the transmission mode of the MTRP transmission is determined to be SDM transmission or SFN transmission based on radio resource control RRC signaling.

[0123] In conjunction with some embodiments of the third aspect, in some embodiments, the maximum number of transmission layers is: the maximum number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state;

[0124] The maximum number of PTRS ports is: the maximum number of PTRS ports sent by the terminal, wherein the number of PTRS ports corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states of the terminal is the same.

[0125] In combination with some embodiments of the third aspect, in some embodiments, when the transmission mode is SDM transmission, the maximum number of PTRS ports is 2, the actual number of PTRS ports sent by the terminal is 2, each SRS resource set, or each TRP, or each antenna panel, or each TCI state corresponds to a PTRS port, and different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states correspond to different PTRS ports for transmission.

[0126] In conjunction with some embodiments of the third aspect, in some embodiments, the determining module is further configured to:

[0127] The transmission mode is SDM transmission, the maximum number of transmission layers configured for the SDM transmission is 1, the actual number of PTRS ports sent by the terminal is 2, and the bit width and / or indication method of the DCI indication field is determined as any one of the following:

[0128] The bit width of the DCI indication field is 0 bits;

[0129] The bit width of the DCI indication field is 2 bits, the high-order bit MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the low-order bit LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 1 corresponding to the second TCI state in the STxMP configuration scenario;

[0130] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate an SRS resource set, or a TRP, or an antenna panel, or a DMRS port associated with a PTRS port corresponding to a TCI state in an STxMP configuration scenario.

[0131] In conjunction with some embodiments of the third aspect, in some embodiments, the determining module is further configured to:

[0132] The transmission mode is SDM transmission. When the maximum number of transmission layers configured for SDM transmission is 2, the actual number of PTRS ports sent by the terminal is 2. Determine the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state;

[0133] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, the bit width of the DCI indication field is determined to be 2 bits, and the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state in the STxMP configuration scenario;

[0134] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0135] The bit width of the DCI indication field is 0 bits;

[0136] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 1 corresponding to the second TCI state in the STxMP configuration scenario;

[0137] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate an SRS resource set, or a TRP, or an antenna panel, or a DMRS port associated with a PTRS port corresponding to a TCI state in an STxMP configuration scenario;

[0138] When the actual number of transmission layers corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state is 1, and the actual number of transmission layers corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state is 2; or, when the actual number of transmission layers corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state is 2, and the actual number of transmission layers corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0139] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 1 corresponding to the second TCI state in the STxMP configuration scenario;

[0140] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate the SRS resource set with an actual transmission layer number of 2, or the TRP with an actual transmission layer number of 2, or the antenna panel with an actual transmission layer number of 2, or the DMRS port associated with the PTRS port corresponding to the TCI state with an actual transmission layer number of 2.

[0141] In combination with some embodiments of the third aspect, in some embodiments, when the transmission mode is SFN transmission, the number of PTRS ports corresponding to the different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is the same, and the same PTRS port corresponding to the different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same or different DMRS ports.

[0142] In conjunction with some embodiments of the third aspect, in some embodiments, the determining module is further configured to:

[0143] The transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 1, and when the maximum number of PTRS ports configured for the SFN transmission is 1, the actual number of PTRS ports sent by the terminal is 1, and the bit width and / or indication method of the DCI indication field are determined as any one of the following:

[0144] The bit width of the DCI indication field is 0 bits;

[0145] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0146] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate an SRS resource set, or a TRP, or an antenna panel, or a DMRS port associated with a PTRS port corresponding to a TCI state in an STxMP configuration scenario.

[0147] In conjunction with some embodiments of the third aspect, in some embodiments, the determining module is further configured to:

[0148] The transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 2, and when the maximum number of PTRS ports configured for the SFN transmission is 1, the actual number of PTRS ports sent by the terminal is 1. Determine the actual number of transmission layers for each SRS resource set, or each TRP, or each antenna panel, or each TCI state;

[0149] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0150] The bit width of the DCI indication field is 0 bits;

[0151] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0152] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate an SRS resource set, or a TRP, or an antenna panel, or a DMRS port associated with a PTRS port corresponding to a TCI state in an STxMP configuration scenario;

[0153] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same DMRS port, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0154] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario;

[0155] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the first SRS resource set in the STxMP configuration scenario, or the first TRP, or the first antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the first TCI state, and the LSB of the DCI indication field indicates the second SRS resource set in the STxMP configuration scenario, or the second TRP, or the second antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the second TCI state.

[0156] In conjunction with some embodiments of the third aspect, in some embodiments, the determining module is further configured to:

[0157] The transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 2, and when the maximum number of PTRS ports configured for the SFN transmission is 1, the actual number of PTRS ports sent by the terminal is 1. Determine the actual number of transmission layers for each SRS resource set, or each TRP, or each antenna panel, or each TCI state;

[0158] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with different DMRS ports, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0159] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates another DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0160] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario.

[0161] In conjunction with some embodiments of the third aspect, in some embodiments, the determining module is further configured to:

[0162] When the transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 2, and the maximum number of PTRS ports configured for the SFN transmission is 2, determining the actual number of PTRS ports sent by the terminal;

[0163] If the actual number of PTRS ports sent by the terminal is 1, determine the actual number of transmission layers for each SRS resource set, or each TRP, or each antenna panel, or each TCI state;

[0164] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0165] The bit width of the DCI indication field is 0 bits;

[0166] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0167] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate the DMRS port associated with the PTRS port 0 corresponding to an SRS resource set, or a TRP, or an antenna panel, or a TCI state in the STxMP configuration scenario;

[0168] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same DMRS port, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0169] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario;

[0170] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0171] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with different DMRS ports, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0172] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates another DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0173] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario.

[0174] In conjunction with some embodiments of the third aspect, in some embodiments, the determining module is further configured to:

[0175] When the transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 2, and the maximum number of PTRS ports configured for the SFN transmission is 2, determining the actual number of PTRS ports sent by the terminal;

[0176] When the actual number of PTRS ports sent by the terminal is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same DMRS port, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0177] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario;

[0178] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponding to the PTRS port 0 in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponding to the first TRS port 1 in the STxMP configuration scenario;

[0179] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the first SRS resource set, or the first TRP, or the first antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the second SRS resource set, or the second TRP, or the second antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0180] The bit width of the DCI indication field is 4 bits. The first two bits of the DCI indication field indicate the DMRS ports associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the two PTRS ports corresponding to the first TCI state in the STxMP configuration scenario. The last two bits of the DCI indication field indicate the DMRS ports associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the two PTRS ports corresponding to the second TCI state in the STxMP configuration scenario.

[0181] In conjunction with some embodiments of the third aspect, in some embodiments, the determining module is further configured to:

[0182] When the transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 2, and the maximum number of PTRS ports configured for the SFN transmission is 2, determining the actual number of PTRS ports sent by the terminal;

[0183] When the actual number of PTRS ports sent by the terminal is 2, if different SRS resource sets, or different TRPs, or different antenna panels, or the same PTRS port corresponding to different TCI states is associated with different DMRS ports, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0184] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the first SRS resource set, or the first TRP, or the first antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the second SRS resource set, or the second TRP, or the second antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0185] The bit width of the DCI indication field is 4 bits. The first two bits of the DCI indication field indicate the DMRS ports associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the two PTRS ports corresponding to the first TCI state in the STxMP configuration scenario. The last two bits of the DCI indication field indicate the DMRS ports associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the two PTRS ports corresponding to the second TCI state in the STxMP configuration scenario.

[0186] In conjunction with some embodiments of the third aspect, in some embodiments, the apparatus is further configured to:

[0187] Determine a target SRS resource set, a target TRP, a target antenna panel, or a target TCI state from two SRS resource sets, two TRPs, two antenna panels, or two TCI states based on at least one of a predefined rule, a network configuration, and a network indication;

[0188] The actual PTRS port number of the target SRS resource set, or the target TRP, or the target antenna panel, or the target TCI state is determined as the actual PTRS port number sent by the terminal.

[0189] In conjunction with some embodiments of the third aspect, in some embodiments, the apparatus is further configured to:

[0190] When SFN transmission is performed based on the codebook, the actual number of PTRS ports of the target SRS resource set, target TRP, target antenna panel, or target TCI state is determined based on the precoding matrix indication TPMI configured by the network device for the target SRS resource set, target TRP, target antenna panel, or target TCI state;

[0191] When SFN transmission is performed based on a non-codebook, the actual number of PTRS ports of the target SRS resource set, target TRP, target antenna panel, or target TCI state is determined based on the PTRS index (PTRS index) indicated by the SRI field corresponding to the target SRS resource set, target TRP, target antenna panel, or target TCI state in the DCI signaling.

[0192] In a fourth aspect, an embodiment of the present disclosure proposes a communication device, which includes: one or more processors; one or more memories for storing instructions; wherein the processor is used to call the instructions so that the communication device executes the determination method described in the first aspect and the optional implementation method of the first aspect.

[0193] In the fifth aspect, an embodiment of the present disclosure proposes a communication system, which includes: a terminal and a network device; wherein the terminal is configured to execute the method described in the first aspect and the optional implementation of the first aspect, and the network device is configured to execute the method described in the first aspect and the optional implementation of the first aspect.

[0194] In a sixth aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the first aspect and the optional implementation method of the first aspect.

[0195] In a seventh aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the first aspect and the optional implementation manner of the first aspect.

[0196] In an eighth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the first aspect and the optional implementation manner of the first aspect.

[0197] It is understandable that the first communication device, the second communication device, the communication equipment, the communication system, the storage medium, the program product, and the computer program are all used to perform the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding method and will not be repeated here.

[0198] The present disclosure provides invention titles. In some embodiments, the terms "determining method" and "information determining method," "information sending method," and "information receiving method" are interchangeable; the terms "communication device" and "information processing device," "information sending device," and "information receiving device" are interchangeable; and the terms "information processing system," "communication system," "information sending system," and "information receiving system" are interchangeable.

[0199] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0200] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0201] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0202] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0203] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0204] In some embodiments, the terms "at least one of", "at least one of", "at least one of", "one or more", "a plurality of", "multiple", etc. can be used interchangeably.

[0205] In the embodiments of the present disclosure, descriptions such as “at least one of A, B, C…”, “A and / or B and / or C…”, etc. include the situation where any one of A, B, C… exists alone, and also include any combination of any multiple of A, B, C…, and each situation can exist alone; for example, “at least one of A, B, C” includes the situation where A exists alone, B exists alone, C exists alone, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B, and C; for example, A and / or B includes the situation where A exists alone, B exists alone, and the combination of A and B.

[0206] In some embodiments, descriptions such as "in one case A, in another case B," or "in response to one case A, in response to another case B," may include the following technical solutions depending on the situation: executing A independently of B (in some embodiments, A); executing B independently of A (in some embodiments, B); selectively executing A and B (in some embodiments, selecting between A and B); and executing both A and B (in some embodiments, A and B). The same applies when there are more branches, such as A, B, and C.

[0207] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0208] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0209] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0210] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0211] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0212] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0213] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0214] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0215] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, it can also be called device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it can also be set as a structure in which the terminal has all or part of the functions of the access network device. In addition, language such as "uplink" and "downlink" can also be replaced by language corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0216] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0217] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0218] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0219] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0220] The correspondences shown in the tables of the present disclosure can be configured or predefined. The values ​​of the information in each table are merely examples and can be configured to other values, which are not limited by the present disclosure. When configuring the correspondences between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, in the tables of the present disclosure, the correspondences shown in certain rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables may also adopt other names that can be understood by the communication device, and the values ​​or representations of the parameters may also adopt other values ​​or representations that can be understood by the communication device. When implementing the above tables, other data structures may also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables, etc.

[0221] The predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0222] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1, the communication system 100 may include a terminal 101 and a network terminal 102. Optionally, the network device is at least one of an access network device and a core network device.

[0223] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0224] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a wireless fidelity (WiFi) system, but is not limited thereto.

[0225] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0226] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0227] In some embodiments, a core network device may be a single device comprising one or more network elements, or may be a plurality of devices or a group of devices, each comprising all or part of one or more network elements. A network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0228] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0229] The following embodiments of the present disclosure may be applied to the communication system 100 shown in Figure 1, or a portion thereof, but are not limited thereto. The entities shown in Figure 1 are illustrative only. The communication system may include all or part of the entities shown in Figure 1, or may include other entities outside of Figure 1. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0230] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other determination methods, and next-generation systems based on and extending these systems. Furthermore, a combination of multiple systems (e.g., a combination of LTE or LTE-A with 5G) may also be employed.

[0231] FIG2A is an interactive diagram illustrating a determination method according to an embodiment of the present disclosure. As shown in FIG2A , the embodiment of the present disclosure relates to a determination method for a communication system 100, the method comprising:

[0232] Step 2101: When the transmission scheme is physical uplink shared channel (PUSCH) for MTRP transmission in the uplink multi-antenna panel simultaneous transmission (STxMP) configuration scenario, the network device determines the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports.

[0233] Optionally, the above-mentioned STxMP configuration scenario may include a terminal and multiple TRPs, and optionally, the terminal may include one or more antenna panels. Optionally, the terminal may use one or more antenna panels to send uplink signals to the TRP, and optionally, PUSCH transmissions in different TRP directions may be associated with different sounding reference signal (SRS) resource sets and different transmission configuration indicator states (TCI states), and the SRS resource set and TCI state may be configured to the terminal by a network device. When the terminal uses the antenna panel to send an uplink signal to the TRP, the uplink signal may be sent based on the SRS resource set and / or TCI state associated with the TRP direction.

[0234] Optionally, in the embodiment, "the STxMP configuration scenario includes two TRPs, and the terminal includes two antenna panels" is used as an example for illustration, but is not limited to this. Optionally, the MTRP transmission in the above-mentioned STxMP configuration scenario may include: the two antenna panels of the terminal simultaneously send PUSCH to two different TRP directions, then the above-mentioned STxMP configuration scenario includes two antenna panels, two SRS resource sets, two TRPs, and two TCI states. Optionally, it can be assumed that the two antenna panels are the first antenna panel and the second antenna panel, the two SRS resource sets are the first SRS resource set and the second SRS resource set, the two TRPs are the first TRP and the second TRP, and the two TCI states are the first TCI state and the second TCI state.

[0235] Optionally, the above-mentioned transmission mode may include: Space Division Multiplexing (SDM) transmission or Single Frequency Network (SFN) transmission. The transmission mode may be configured by the network device to the terminal, for example, the network device may be configured to the terminal through Radio Resource Control (RRC). The terminal may perform MTRP transmission through the transmission mode configured by the network device.

[0236] Optionally, the DCI indication field may be used to indicate an association relationship between ports. For example, the association relationship between ports includes an association relationship between a PTRS port and a DMRS port.

[0237] Optionally, in some embodiments, the aforementioned maximum number of transmission layers may be configured by a network device to a terminal, for example, via RRC signaling. The maximum number of transmission layers may be the maximum number of transmission layers corresponding to each SRS resource set, each TRP, each antenna panel, or each TCI state, i.e., the maximum number of transmission layers is the maximum number of transmission layers per SRS resource set, per TRP, per antenna panel, or per TCI state. Optionally, the maximum number of transmission layers may vary under different transmission modes. Optionally, when the transmission mode is SDM transmission, the maximum number of transmission layers and the actual number of transmission layers (where the actual number of transmission layers is less than or equal to the maximum number of transmission layers) corresponding to different SRS resource sets, different TRPs, different antenna panels, or different TCI states may be the same or different. For example, the maximum number of transmission layers corresponding to a first SRS resource set, a first TRP, a first antenna panel, or a first TCI state may be 2, while the maximum number of transmission layers corresponding to a second SRS resource set, a second TRP, a second antenna panel, or a second TCI state may be 2 or 1. Optionally, when the transmission mode is SFN transmission, the maximum number of transmission layers and the actual number of transmission layers (where the actual number of transmission layers is less than or waiting for the maximum number of transmission layers) corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states should be the same; for example, the maximum number of transmission layers corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state is 2 layers, and the maximum number of transmission layers corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state should also be 2 layers.

[0238] It should be noted that, in some embodiments, the above-mentioned "actual number of transmission layers" can also be configured by the network device to the terminal. Optionally, the network device can first configure the maximum number of transmission layers and one or more SRS resource sets to the terminal, and the terminal uses the maximum number of transmission layers and the SRS resources in the SRS resource set to send SRS to the TRP. The network device can measure the SRS received by different TRPs, and based on the measurement results, configure the actual number of transmission layers, SRS resources and other parameters corresponding to the subsequent PUSCH transmission of the terminal to the terminal through DCI signaling. Optionally, the DCI signaling can also include the above-mentioned DCI indication field and sounding reference signal resource indicator (SRI) field. Optionally, the SRI field can be used to configure the PUSCH transmission as MTRP transmission.

[0239] Optionally, in some embodiments, the aforementioned maximum number of PTRS ports may be configured by a network device to a terminal. The maximum number of PTRS ports may be the maximum number of PTRS ports sent by the terminal, that is, the maximum number of PTRS ports may be the maximum number of PTRS ports per terminal. Optionally, the number of PTRS ports corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states of the terminal is the same. For example, when the number of PTRS ports corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state is 1, the number of PTRS ports corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state should also be 1.

[0240] Optionally, in some embodiments, the maximum number of PTRS ports sent by the terminal may be different under different transmission modes. Optionally, when the transmission mode is SDM transmission, the maximum number of PTRS ports may be 2, and the actual number of PTRS ports sent by the terminal is also 2, each SRS resource set, or each TRP, or each antenna panel, or each TCI state corresponds to a PTRS port, and different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states correspond to different PTRS ports. Optionally, when the transmission mode is SFN transmission, the number of PTRS ports corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is the same, and the PTRS ports corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states are also the same.

[0241] Optionally, for SFN transmission, since different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states correspond to the same PTRS port, the number of PTRS ports corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is the number of PTRS ports corresponding to the terminal sending; for example, assuming that the number of PTRS ports corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state is 2, which are PTRS ports 0 and 1 respectively; the number of PTRS ports corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state is also 2, which are PTRS ports 0 and 1 respectively. At this time, although the number of PTRS ports corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state is 2, the number of PTRS ports corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state is also 2, but due to different SRS resource sets, or different TRPs, or different antenna panels, or different TCIs, The same PTRS port corresponds to the state, therefore, the number of PTRS ports corresponding to the two second SRS resource sets, or the two TRPs, or the two antenna panels, or the two TCI states (or the number of PTRS ports corresponding to per terminal) is also 2, namely PTRS ports 0 and 1.

[0242] Optionally, when the transmission mode is SFN transmission, the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states can be associated with the same or different DMRS ports. Specifically, when the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same DMRS port, the PTRS port is considered to be SFN. When the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with different DMRS ports, the PTRS port is considered to be non-SFN.

[0243] Optionally, before introducing "how to determine the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports", the relationship between the number of transmission layers, DMRS ports, and PTRS ports is first introduced.

[0244] Optionally, the actual number of transmission layers for each SRS resource set, or each TRP, or each antenna panel, or each TCI state may be N, where N is a positive integer, and each transmission layer corresponds to a DMRS port (it should be noted that in SDM transmission, the DMRS ports corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states are different; in SFN transmission, the DMRS ports corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states are the same). Optionally, the actual number of PTRS ports corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state may be M, where M is less than or equal to N. The DMRS ports associated with the number of PTRS ports corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state may be the DMRS ports corresponding to a certain number of transmission layers for each SRS resource set, or each TRP, or each antenna panel, or each TCI state. For example, if the actual number of transmission layers corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state is 2, and the 2 transmission layers correspond to DMRS port 0 and DMRS port 1 respectively, the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponds to 1 PTRS port. If the 1 PTRS port is: PTRS port 1, then the PTRS port 1 can be associated with either DMRS port 0 or DMRS port 1. At this time, a DCI indication field is required to indicate which of DMRS port 0 and DMRS port 1 the PTRS port 1 is associated with.

[0245] Based on this, in some embodiments, the above-mentioned determination of the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports may include:

[0246] When the transmission mode is SDM transmission and the maximum number of transmission layers configured for SDM transmission is 1, the actual number of PTRS ports sent by the terminal is 2. For example, the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponds to PTRS port 0, and the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state corresponds to PTRS port 1. The bit width and / or indication method of the DCI indication field is determined as any one of the following:

[0247] The bit width of the DCI indication field is 0 bits; optionally, since each SRS resource set, or each TRP, or each antenna panel, or each TCI state corresponds to a PTRS port under SDM transmission, at this time, if the maximum number of transmission layers configured for SDM transmission is 1, then the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state should also be 1. Optionally, since different numbers of transmission layers correspond to a DMRS port respectively, the number of DMRS ports corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is also 1. On this basis, since each TRP, or each antenna panel, or each TCI state corresponds to a PTRS port, the DMRS port associated with the PTRS port corresponding to each TRP, or each antenna panel, or each TCI state must be a DMRS port corresponding to each TRP, or each antenna panel, or each TCI state. Therefore, each antenna panel or each TCI can be known without indication. The association relationship between the DMRS port associated with the PTRS port corresponding to the state and the PTRS port.

[0248] The bit width of the DCI indication field is 2 bits. The most significant bit (MSB) of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario. The least significant bit (LSB) of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 1 corresponding to the second TCI state in the STxMP configuration scenario.

[0249] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate the DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in the STxMP configuration scenario. Optionally, the 1 bit can be pre-agreed and / or pre-configured to indicate which SRS resource set, or which TRP, or which antenna panel, or which TCI state corresponding PTRS port is associated with the DMRS port. For example, the 1 bit can be pre-agreed and / or pre-configured to indicate the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port corresponding to the first TCI state.

[0250] Optionally, in some other embodiments, the above-mentioned “determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports” may include:

[0251] When the transmission mode is SDM transmission and the maximum number of transmission layers configured for SDM transmission is 2, the actual number of PTRS ports sent by the terminal is 2. For example, the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponds to PTRS port 0, and the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state corresponds to PTRS port 1. Then, the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state can be determined first.

[0252] Optionally, under the premise that the transmission mode is SDM transmission and the maximum number of transmission layers configured for SDM transmission is 2, if the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, the bit width of the DCI indication field is determined to be 2 bits, and the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponding to the first SRS resource set in the STxMP configuration scenario, or the first TRP, or the first antenna panel, or the first TCI state, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state corresponding to the second TRS port 1 in the STxMP configuration scenario;

[0253] Optionally, under the premise that the transmission mode is SDM transmission and the maximum number of transmission layers configured for SDM transmission is 2, if the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0254] The bit width of the DCI indication field is 0 bits;

[0255] The bit width of the DCI indication field is 2 bits. The MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario. The LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 1 corresponding to the second TCI state in the STxMP configuration scenario.

[0256] The bit width of the DCI indication field is 1 bit. The DCI indication field is used to indicate the DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in the STxMP configuration scenario;

[0257] Optionally, under the premise that the transmission mode is SDM transmission and the maximum number of transmission layers configured for SDM transmission is 2, if the actual number of transmission layers corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state is 1, the actual number of transmission layers corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state is 2; or, if the actual number of transmission layers corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state is 2, the actual number of transmission layers corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state is 1, the bit width and / or indication method of the DCI indication field is determined as any one of the following:

[0258] The bit width of the DCI indication field is 2 bits. The MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario. The LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 1 corresponding to the second TCI state in the STxMP configuration scenario.

[0259] The bit width of the DCI indication field is 1 bit. The DCI indication field is used to indicate the SRS resource set with an actual transmission layer number of 2, or the TRP, or the antenna panel, or the DMRS port associated with the PTRS port corresponding to the TCI state. Optionally, the reason why only the DMRS port associated with the PTRS port corresponding to the SRS resource set, or TRP, or antenna panel, or TCI state with an actual transmission layer number of 2 is indicated, and the DMRS port associated with the PTRS port corresponding to the SRS resource set, or TRP, or antenna panel, or TCI state with an actual transmission layer number of 1 is not indicated is because: the DMRS port associated with the PTRS port corresponding to the SRS resource set, or TRP, or antenna panel, or TCI state with an actual transmission layer number of 1 does not need to be indicated. Optionally, if the SRS resource set, or TRP, or antenna panel, or TCI state with an actual transmission layer number of 1 only corresponds to one DMRS port, then the DMRS port associated with the PTRS port corresponding to the SRS resource set, or TRP, or antenna panel, or TCI state with an actual transmission layer number of 1 must be the corresponding DMRS port, so there is no need to indicate it again.

[0260] Optionally, in some further embodiments, the above-mentioned “determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports” may include:

[0261] When the transmission mode is SFN transmission, the maximum transmission layer configured for SFN transmission is 1, and the maximum number of PTRS ports configured for SFN transmission is 1, the actual number of PTRS ports sent by the terminal is 1. For example, the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponds to PTRS port 0, and the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state also corresponds to PTRS port 0, then the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0262] The bit width of the DCI indication field is 0 bits;

[0263] The bit width of the DCI indication field is 2 bits. The MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario. The LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario.

[0264] The bit width of the DCI indication field is 1 bit. The DCI indication field is used to indicate an SRS resource set, or a TRP, or an antenna panel, or a DMRS port associated with a PTRS port corresponding to a TCI state in an STxMP configuration scenario.

[0265] Optionally, in some further embodiments, the above-mentioned “determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports” may include:

[0266] When the transmission mode is SFN transmission, the maximum transmission layer configured for SFN transmission is 2, and the maximum number of PTRS ports configured for SFN transmission is 1, the actual number of PTRS ports sent by the terminal is 1. For example, the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponds to PTRS port 0, and the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state also corresponds to PTRS port 0. Then, the actual number of transmission layers for each SRS resource set, or each TRP, or each antenna panel, or each TCI state is determined;

[0267] Optionally, under the premise that the transmission mode is SFN transmission, the maximum transmission layer configured for SFN transmission is 2, and the maximum number of PTRS ports configured for SFN transmission is 1, if the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0268] The bit width of the DCI indication field is 0 bits;

[0269] The bit width of the DCI indication field is 2 bits. The MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario. The LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario.

[0270] The bit width of the DCI indication field is 1 bit. The DCI indication field is used to indicate the DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in the STxMP configuration scenario;

[0271] Optionally, under the premise that the transmission mode is SFN transmission, the maximum transmission layer configured for SFN transmission is 2, and the maximum number of PTRS ports configured for SFN transmission is 1, when the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same DMRS port, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0272] The bit width of the DCI indication field is 1 bit. The DCI indication field is used to indicate the DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in the STxMP configuration scenario;

[0273] The bit width of the DCI indication field is 2 bits. The MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponding to the PTRS port 0 in the STxMP configuration scenario. The LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state corresponding to the PTRS port 0 in the STxMP configuration scenario.

[0274] Optionally, under the premise that the transmission mode is SFN transmission, the maximum transmission layer configured for SFN transmission is 2, and the maximum number of PTRS ports configured for SFN transmission is 1, when the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with different DMRS ports, the bit width and / or indication method of the DCI indication field is determined as any one of the following:

[0275] The bit width of the DCI indication field is 2 bits. The MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario. The LSB of the DCI indication field indicates another DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario.

[0276] The bit width of the DCI indication field is 1 bit. The DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario.

[0277] The following describes the principle of how to clearly indicate the DMRS ports associated with two SRS resource sets, or two TRPs, or two antenna panels, or two TCI states when the bit width of the DCI indication field is 1 bit: "When the transmission mode is SFN transmission, the maximum transmission layer configured for SFN transmission is 2, and the maximum number of PTRS ports configured for SFN transmission is 1, when the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with different DMRS ports."

[0278] Optionally, since the DMRS ports corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states in SFN transmission are the same, at this time, if the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, then each SRS resource set, or each TRP, or each antenna panel, or each TCI state corresponds to the same two DMRS ports, for example, corresponding to DMRS port 0 and DMRS port 1. At this time, if the actual number of PTRS ports sent by the terminal is 1 (for example, the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponds to PTRS port 0, and the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state also corresponds to PTRS port 0), and the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with different DMRS ports, then it is only necessary to indicate the DMRS port associated with the PTRS port 0 corresponding to a certain SRS resource set, or a certain TRP, or a certain antenna panel, or a certain TCI state, and you can know by default the DMRS port associated with the PTRS port 0 corresponding to another SRS resource set, or another TRP, or another antenna panel, or another TCI state. For example, it is assumed that the DMRS port associated with the PTRS port 0 corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state is DMRS port 0, wherein, since the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with different DMRS ports, the DMRS port associated with the PTRS port 0 corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state must be DMRS port 1.

[0279] Optionally, in some further embodiments, the above-mentioned “determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports” may include:

[0280] When the transmission mode is SFN transmission, the maximum transmission layer configured for SFN transmission is 2, and the maximum number of PTRS ports configured for SFN transmission is 2, determine the actual number of PTRS ports sent by the terminal;

[0281] When the actual PTRS port number sent by the terminal is 1 (for example, the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponds to PTRS port 0, and the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state also corresponds to PTRS port 0), determine the actual number of transmission layers for each SRS resource set, or each TRP, or each antenna panel, or each TCI state;

[0282] When "the transmission mode is SFN transmission, the maximum number of transmission layers configured for SFN transmission is 2, the maximum number of PTRS ports configured for SFN transmission is 2, and the actual number of PTRS ports sent by the terminal is 1", and the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any of the following:

[0283] The bit width of the DCI indication field is 0 bits;

[0284] The bit width of the DCI indication field is 2 bits. The MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario. The LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario.

[0285] The bit width of the DCI indication field is 1 bit. The DCI indication field is used to indicate an SRS resource set, or a TRP, or an antenna panel, or a DMRS port associated with the PTRS port 0 corresponding to a TCI state in the STxMP configuration scenario;

[0286] When "the transmission mode is SFN transmission, the maximum transmission layers configured for SFN transmission is 2, the maximum number of PTRS ports configured for SFN transmission is 2, and the actual number of PTRS ports sent by the terminal is 1", and the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same DMRS port, the bit width and / or indication method of the DCI indication field is determined to be any of the following:

[0287] The bit width of the DCI indication field is 1 bit. The DCI indication field is used to indicate the DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in the STxMP configuration scenario;

[0288] The bit width of the DCI indication field is 2 bits. The MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario. The LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario.

[0289] When "the transmission mode is SFN transmission, the maximum transmission layers configured for SFN transmission is 2, the maximum number of PTRS ports configured for SFN transmission is 2, and the actual number of PTRS ports sent by the terminal is 1", and the actual number of transmission layers corresponding to each antenna panel or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with different DMRS ports, the bit width and / or indication method of the DCI indication field is determined to be any of the following:

[0290] The bit width of the DCI indication field is 2 bits. The MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario. The LSB of the DCI indication field indicates another DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario.

[0291] The bit width of the DCI indication field is 1 bit. The DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario.

[0292] Optionally, in some further embodiments, the above-mentioned “determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports” may include:

[0293] When the transmission mode is SFN transmission, the maximum transmission layer configured for SFN transmission is 2, and the maximum number of PTRS ports configured for SFN transmission is 2, determine the actual number of PTRS ports sent by the terminal;

[0294] When the actual number of PTRS ports sent by the terminal is 2 (for example, the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponds to PTRS port 0 and PTRS port 1, and the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state also corresponds to PTRS port 0 and PTRS port 1), it indicates that the actual transmission layer configured corresponding to the SFN transmission is necessarily 2. At this time, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same DMRS port, the bit width and / or indication method of the DCI indication field is determined as any one of the following:

[0295] The bit width of the DCI indication field is 1 bit. The DCI indication field is used to indicate the DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in the STxMP configuration scenario;

[0296] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 1 corresponding to the first TCI state in the STxMP configuration scenario; or, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 1 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario;

[0297] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario; or, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 1 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 1 corresponding to the second TCI state in the STxMP configuration scenario;

[0298] The bit width of the DCI indication field is 4 bits. The first two bits of the DCI indication field indicate the DMRS ports associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the two PTRS ports corresponding to the first TCI state in the STxMP configuration scenario. The last two bits of the DCI indication field indicate the DMRS ports associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the two PTRS ports corresponding to the second TCI state in the STxMP configuration scenario.

[0299] Optionally, in some further embodiments, the above-mentioned “determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports” may include:

[0300] When the transmission mode is SFN transmission, the maximum transmission layer configured for SFN transmission is 2, and the maximum number of PTRS ports configured for SFN transmission is 2, determine the actual number of PTRS ports sent by the terminal;

[0301] When the actual number of PTRS ports sent by the terminal is 2 (for example, PTRS port 0 and PTRS port 1 corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state, and PTRS port 0 and PTRS port 1 corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state), it indicates that the actual transmission layer configured corresponding to the SFN transmission at this time is necessarily 2. At this time, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with different DMRS ports, the bit width and / or indication method of the DCI indication field is determined as any one of the following:

[0302] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the first SRS resource set in the STxMP configuration scenario, or the first TRP, or the first antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the first TCI state, and the LSB of the DCI indication field indicates the second SRS resource set in the STxMP configuration scenario, or the second TRP, or the second antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the second TCI state; or, the MSB of the DCI indication field indicates the first SRS resource set in the STxMP configuration scenario, or the first TRP, or the first antenna panel, or the DMRS port associated with the PTRS port 1 corresponding to the first TCI state, and the LSB of the DCI indication field indicates the second SRS resource set in the STxMP configuration scenario, or the second TRP, or the second antenna panel, or the DMRS port associated with the PTRS port 1 corresponding to the second TCI state; or, the MSB of the DCI indication field indicates the first SRS resource set in the STxMP configuration scenario, or the first TRP, or the first antenna panel, or the DMRS port associated with the PTRS port 1 corresponding to the second TCI state. The DMRS port associated with the PTRS port 1 corresponding to the state, the LSB of the DCI indication field indicates the second SRS resource set in the STxMP configuration scenario, or the second TRP, or the second antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the second TCI state; or, the MSB of the DCI indication field indicates the first SRS resource set in the STxMP configuration scenario, or the first TRP, or the first antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the first TCI state, the LSB of the DCI indication field indicates the second SRS resource set in the STxMP configuration scenario, or the second TRP, or the second antenna panel, or the DMRS port associated with the PTRS port 1 corresponding to the second TCI state;

[0303] The bit width of the DCI indication field is 4 bits. The first two bits of the DCI indication field indicate the DMRS ports associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the two PTRS ports corresponding to the first TCI state in the STxMP configuration scenario. The last two bits of the DCI indication field indicate the DMRS ports associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the two PTRS ports corresponding to the second TCI state in the STxMP configuration scenario.

[0304] The bit width of the DCI indication field is 1 bit. The DCI indication field is used to indicate the DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in the STxMP configuration scenario; optionally, since the DMRS port associated with another SRS resource set, or another TRP, or another antenna panel, or another TCI state is different, it can be determined by default which DMRS ports are associated with the other SRS resource set, or another TRP, or another antenna panel, or another TCI state. For related principles, please refer to the aforementioned "" Under the premise that the transmission mode is SFN transmission, the maximum transmission layer configured for SFN transmission is 2, and the maximum number of PTRS ports configured for SFN transmission is 1, when the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if different SRS resource sets, or different TRPs, or different antenna panels, or different TCIs In the case where the same PTRS port corresponding to the state is associated with different DMRS ports, the principle of how to clearly indicate the DMRS ports associated with two SRS resource sets, or two TRPs, or two antenna panels, or two PTRS ports corresponding to the TCI state when the bit width of the DCI indication field is 1 bit will not be repeated here.

[0305] Optionally, in some embodiments, the above-mentioned “determining the actual PTRS port number sent by the terminal” may include the following steps:

[0306] Step a: Determine a target SRS resource set, a target TRP, a target antenna panel, or a target TCI state from two SRS resource sets, or two TRPs, or two antenna panels, or two TCI states based on at least one of predefined rules, network configuration, and network indication.

[0307] Optionally, the target SRS resource set, or the target TRP, or the target antenna panel, or the target TCI state can be any one of two SRS resource sets, or two TRPs, or two antenna panels, or two TCI states.

[0308] Step b: Determine the actual PTRS port number of the target SRS resource set, or the target TRP, or the target antenna panel, or the target TCI state as the actual PTRS port number sent by the terminal.

[0309] Optionally, as can be seen from the above description, the actual number of PTRS ports sent by the terminal is mainly determined when the transmission mode is SFN. Based on this, in some embodiments, when the SFN transmission mode is codebook-based transmission, the actual number of PTRS ports of the target SRS resource set, or target TRP, or target antenna panel, or target TCI state can be determined based on the precoding matrix indication (Transmit Precoding Matrix Indicator, TPMI) corresponding to the target SRS resource set, or target TRP, or target antenna panel, or target TCI state; optionally, the TPMI can be indicated through DCI signaling, and optionally, the DCI signaling can also carry the above-mentioned SRI field and DCI indication field.

[0310] When the SFN transmission mode is a non-codebook-based transmission mode, the actual number of PTRS ports of the target SRS resource set, target TRP, target antenna panel, or target TCI state can be determined based on the PTRS index (PTRS index) indicated by the SRI field corresponding to the target SRS resource set, target TRP, target antenna panel, or target TCI state in the DCI signaling.

[0311] Step 2102: The network device indicates a transmission scheme and / or transmission mode to the terminal.

[0312] Optionally, in some embodiments, the network device may indicate to the terminal whether the transmission scheme is MTRP transmission through an SRI indication field in DCI signaling. Optionally, the DCI signaling may include the above-mentioned DCI indication field. Optionally, the network device may indicate to the terminal through Radio Resource Control (RRC) whether the transmission mode of the MTRP transmission is SDM transmission or SFN transmission.

[0313] Step 2103: When the transmission scheme is MTRP transmission for PUSCH in an uplink STxMP configuration scenario, the terminal determines the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports.

[0314] Optionally, in some embodiments, the method adopted by the terminal to determine the bit width and / or indication method of the DCI indication field is the same as the method adopted by the above-mentioned network device to determine the bit width and / or indication method of the DCI indication field. The specific process can be described in reference to the above-mentioned embodiment.

[0315] Step 2104: The terminal parses the DCI indication field based on the determined bit width and / or indication method of the DCI indication field.

[0316] The determination method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2104. For example, step S2101 may be implemented as an independent embodiment, step S2102 may be implemented as an independent embodiment, step S2103 may be implemented as an independent embodiment, and steps S2101+S2102 may be implemented as independent embodiments, but are not limited thereto.

[0317] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0318] FIG3A is an interactive diagram illustrating a determination method according to an embodiment of the present disclosure. As shown in FIG3A , the embodiment of the present disclosure relates to a determination method, which is used in a terminal 101 and includes:

[0319] Step 3101: When the transmission scheme is PUSCH and MTRP transmission is performed in the uplink STxMP configuration scenario, the bit width and / or indication method of the DCI indication field is determined based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports.

[0320] Step 3102: Parse the DCI indication field based on the determined bit width and / or indication method of the DCI indication field.

[0321] For a detailed description of steps 3101 - 3102 , please refer to the above embodiment description.

[0322] The determination method involved in the embodiment of the present disclosure may include at least one of steps S3101 and S3102. For example, step S3101 may be implemented as an independent embodiment, and step S3102 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0323] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0324] FIG3B is an interactive diagram illustrating a determination method according to an embodiment of the present disclosure. As shown in FIG3B , the embodiment of the present disclosure relates to a determination method, which is used in terminal 101 and includes:

[0325] Step 3201: When the transmission scheme is PUSCH and MTRP transmission is performed in the uplink STxMP configuration scenario, the bit width and / or indication method of the DCI indication field is determined based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports.

[0326] Optionally, the MTRP transmission in the STxMP configuration scenario includes: two antenna panels of the terminal simultaneously sending PUSCHs in two different TRP directions, wherein the PUSCH transmissions in different TRP directions are associated with different sounding reference signal SRS resource sets and different transmission configuration indication states TCI states;

[0327] The transmission mode includes: space division multiplexing (SDM) transmission or single frequency network (SFN) transmission;

[0328] The DCI indication field is used for the association relationship between ports, and the association relationship between ports includes: the association relationship between the PTRS port and the demodulation reference signal DMRS port.

[0329] Optionally, the method further includes:

[0330] Determine whether it is MTRP transmission based on the sounding reference signal SRI field in the DCI signaling;

[0331] The transmission mode of the MTRP transmission is determined to be SDM transmission or SFN transmission based on radio resource control RRC signaling.

[0332] Optionally, the maximum number of transmission layers is: the maximum number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state;

[0333] The maximum number of PTRS ports is: the maximum number of PTRS ports sent by the terminal, wherein the number of PTRS ports corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states of the terminal is the same.

[0334] Optionally, when the transmission mode is SDM transmission, the maximum number of PTRS ports is 2, the actual number of PTRS ports sent by the terminal is 2, each SRS resource set, or each TRP, or each antenna panel, or each TCI state corresponds to a PTRS port, and different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states correspond to different PTRS ports for transmission.

[0335] Optionally, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0336] The transmission mode is SDM transmission, the maximum number of transmission layers configured for the SDM transmission is 1, the actual number of PTRS ports sent by the terminal is 2, and the bit width and / or indication method of the DCI indication field is determined as any one of the following:

[0337] The bit width of the DCI indication field is 0 bits;

[0338] The bit width of the DCI indication field is 2 bits, the high-order bit MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the low-order bit LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 1 corresponding to the second TCI state in the STxMP configuration scenario;

[0339] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate an SRS resource set, or a TRP, or an antenna panel, or a DMRS port associated with a PTRS port corresponding to a TCI state in an STxMP configuration scenario.

[0340] Optionally, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0341] The transmission mode is SDM transmission. When the maximum number of transmission layers configured for SDM transmission is 2, the actual number of PTRS ports sent by the terminal is 2. Determine the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state;

[0342] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, the bit width of the DCI indication field is determined to be 2 bits, and the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state in the STxMP configuration scenario;

[0343] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0344] The bit width of the DCI indication field is 0 bits;

[0345] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 1 corresponding to the second TCI state in the STxMP configuration scenario;

[0346] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate an SRS resource set, or a TRP, or an antenna panel, or a DMRS port associated with a PTRS port corresponding to a TCI state in an STxMP configuration scenario;

[0347] When the actual number of transmission layers corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state is 1, and the actual number of transmission layers corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state is 2; or, when the actual number of transmission layers corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state is 2, and the actual number of transmission layers corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0348] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 1 corresponding to the second TCI state in the STxMP configuration scenario;

[0349] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate the SRS resource set with an actual transmission layer number of 2, or the TRP with an actual transmission layer number of 2, or the antenna panel with an actual transmission layer number of 2, or the DMRS port associated with the PTRS port corresponding to the TCI state with an actual transmission layer number of 2.

[0350] Optionally, when the transmission mode is SFN transmission, the number of PTRS ports corresponding to the different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is the same, and the same PTRS port corresponding to the different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same or different DMRS ports.

[0351] Optionally, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0352] The transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 1, and when the maximum number of PTRS ports configured for the SFN transmission is 1, the actual number of PTRS ports sent by the terminal is 1, and the bit width and / or indication method of the DCI indication field are determined as any one of the following:

[0353] The bit width of the DCI indication field is 0 bits;

[0354] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0355] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate an SRS resource set, or a TRP, or an antenna panel, or a DMRS port associated with a PTRS port corresponding to a TCI state in an STxMP configuration scenario.

[0356] Optionally, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0357] The transmission mode is SFN transmission, the maximum transmission layers configured for the SFN transmission is 2, and when the maximum number of PTRS ports configured for the SFN transmission is 1, the actual number of PTRS ports sent by the terminal is 1, and the actual number of transmission layers for each SRS resource set, or each TRP, or each antenna panel, or each TCI state is determined;

[0358] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0359] The bit width of the DCI indication field is 0 bits;

[0360] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0361] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate an SRS resource set, or a TRP, or an antenna panel, or a DMRS port associated with a PTRS port corresponding to a TCI state in an STxMP configuration scenario;

[0362] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same DMRS port, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0363] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario;

[0364] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the first SRS resource set in the STxMP configuration scenario, or the first TRP, or the first antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the first TCI state, and the LSB of the DCI indication field indicates the second SRS resource set in the STxMP configuration scenario, or the second TRP, or the second antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the second TCI state.

[0365] Optionally, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0366] The transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 2, and when the maximum number of PTRS ports configured for the SFN transmission is 1, the actual number of PTRS ports sent by the terminal is 1. Determine the actual number of transmission layers for each SRS resource set, or each TRP, or each antenna panel, or each TCI state;

[0367] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with different DMRS ports, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0368] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates another DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0369] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario.

[0370] Optionally, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0371] When the transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 2, and the maximum number of PTRS ports configured for the SFN transmission is 2, determining the actual number of PTRS ports sent by the terminal;

[0372] If the actual number of PTRS ports sent by the terminal is 1, determine the actual number of transmission layers for each SRS resource set, or each TRP, or each antenna panel, or each TCI state;

[0373] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0374] The bit width of the DCI indication field is 0 bits;

[0375] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the first SRS resource set, or the first TRP, or the first antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the second SRS resource set, or the second TRP, or the second antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0376] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate the DMRS port associated with the PTRS port 0 corresponding to an SRS resource set, or a TRP, or an antenna panel, or a TCI state in the STxMP configuration scenario;

[0377] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same DMRS port, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0378] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario;

[0379] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0380] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with different DMRS ports, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0381] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates another DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0382] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario.

[0383] Optionally, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0384] When the transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 2, and the maximum number of PTRS ports configured for the SFN transmission is 2, determining the actual number of PTRS ports sent by the terminal;

[0385] When the actual number of PTRS ports sent by the terminal is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same DMRS port, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0386] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario;

[0387] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponding to the PTRS port 0 in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 1 corresponding to the first TCI state in the STxMP configuration scenario;

[0388] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the first SRS resource set, or the first TRP, or the first antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the second SRS resource set, or the second TRP, or the second antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0389] The bit width of the DCI indication field is 4 bits. The first two bits of the DCI indication field indicate the DMRS ports associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the two PTRS ports corresponding to the first TCI state in the STxMP configuration scenario. The last two bits of the DCI indication field indicate the DMRS ports associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the two PTRS ports corresponding to the second TCI state in the STxMP configuration scenario.

[0390] Optionally, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0391] When the transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 2, and the maximum number of PTRS ports configured for the SFN transmission is 2, determining the actual number of PTRS ports sent by the terminal;

[0392] When the actual number of PTRS ports sent by the terminal is 2, if different SRS resource sets, or different TRPs, or different antenna panels, or the same PTRS port corresponding to different TCI states is associated with different DMRS ports, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0393] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the first SRS resource set, or the first TRP, or the first antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the second SRS resource set, or the second TRP, or the second antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0394] The bit width of the DCI indication field is 4 bits. The first two bits of the DCI indication field indicate the DMRS ports associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the two PTRS ports corresponding to the first TCI state in the STxMP configuration scenario. The last two bits of the DCI indication field indicate the DMRS ports associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the two PTRS ports corresponding to the second TCI state in the STxMP configuration scenario.

[0395] Optionally, determining the actual PTRS port number sent by the terminal includes:

[0396] Determine a target SRS resource set, a target TRP, a target antenna panel, or a target TCI state from two SRS resource sets, two TRPs, two antenna panels, or two TCI states based on at least one of a predefined rule, a network configuration, and a network indication;

[0397] The actual PTRS port number of the target SRS resource set, or the target TRP, or the target antenna panel, or the target TCI state is determined as the actual PTRS port number sent by the terminal.

[0398] For a detailed description of step 3201, please refer to the above embodiment description.

[0399] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0400] FIG4A is an interactive diagram illustrating a determination method according to an embodiment of the present disclosure. As shown in FIG4A , the embodiment of the present disclosure relates to a determination method for a network terminal 102, the method comprising:

[0401] Step 4101: When the transmission scheme is PUSCH and MTRP transmission is performed in the uplink STxMP configuration scenario, the bit width and / or indication method of the DCI indication field is determined based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports.

[0402] Step 4102: Indicate the transmission scheme and / or transmission method.

[0403] For a detailed description of steps 4101-4102, please refer to the above embodiment description.

[0404] The determination method involved in the embodiment of the present disclosure may include at least one of steps S4101 and S4102. For example, step S4101 may be implemented as an independent embodiment, and step S4102 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0405] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0406] FIG4B is an interactive diagram illustrating a determination method according to an embodiment of the present disclosure. As shown in FIG4B , the embodiment of the present disclosure relates to a determination method for a network terminal 102, the method comprising:

[0407] Step 4201: When the transmission scheme is PUSCH and MTRP transmission is performed in the uplink STxMP configuration scenario, the bit width and / or indication method of the DCI indication field is determined based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports.

[0408] Optionally, the MTRP transmission in the STxMP configuration scenario includes: two antenna panels of the terminal simultaneously sending PUSCHs in two different TRP directions, wherein the PUSCH transmissions in different TRP directions are associated with different sounding reference signal SRS resource sets and different transmission configuration indication states TCI states;

[0409] The transmission mode includes: space division multiplexing (SDM) transmission or single frequency network (SFN) transmission;

[0410] The DCI indication field is used to indicate the association relationship between ports, and the association relationship between ports includes: the association relationship between a PTRS port and a demodulation reference signal DMRS port.

[0411] Optionally, the method further includes:

[0412] Determine whether it is MTRP transmission based on the sounding reference signal SRI field in the DCI signaling;

[0413] The transmission mode of the MTRP transmission is determined to be SDM transmission or SFN transmission based on radio resource control RRC signaling.

[0414] Optionally, the maximum number of transmission layers is: the maximum number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state;

[0415] The maximum number of PTRS ports is: the maximum number of PTRS ports sent by the terminal, wherein the number of PTRS ports corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states of the terminal is the same.

[0416] Optionally, when the transmission mode is SDM transmission, the maximum number of PTRS ports is 2, the actual number of PTRS ports sent by the terminal is 2, each SRS resource set, or each TRP, or each antenna panel, or each TCI state corresponds to a PTRS port, and different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states correspond to different PTRS ports for transmission.

[0417] Optionally, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0418] The transmission mode is SDM transmission, the maximum number of transmission layers configured for the SDM transmission is 1, the actual number of PTRS ports sent by the terminal is 2, and the bit width and / or indication method of the DCI indication field is determined as any one of the following:

[0419] The bit width of the DCI indication field is 0 bits;

[0420] The bit width of the DCI indication field is 2 bits, the high-order bit MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the low-order bit LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 1 corresponding to the second TCI state in the STxMP configuration scenario;

[0421] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate an SRS resource set, or a TRP, or an antenna panel, or a DMRS port associated with a PTRS port corresponding to a TCI state in an STxMP configuration scenario.

[0422] Optionally, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0423] The transmission mode is SDM transmission. When the maximum number of transmission layers configured for SDM transmission is 2, the actual number of PTRS ports sent by the terminal is 2. Determine the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state;

[0424] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, the bit width of the DCI indication field is determined to be 2 bits, and the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state in the STxMP configuration scenario;

[0425] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0426] The bit width of the DCI indication field is 0 bits;

[0427] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 1 corresponding to the second TCI state in the STxMP configuration scenario;

[0428] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate an SRS resource set, or a TRP, or an antenna panel, or a DMRS port associated with a PTRS port corresponding to a TCI state in an STxMP configuration scenario;

[0429] When the actual number of transmission layers corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state is 1, and the actual number of transmission layers corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state is 2; or, when the actual number of transmission layers corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state is 2, and the actual number of transmission layers corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0430] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 1 corresponding to the second TCI state in the STxMP configuration scenario;

[0431] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate the SRS resource set with an actual transmission layer number of 2, or the TRP with an actual transmission layer number of 2, or the antenna panel with an actual transmission layer number of 2, or the DMRS port associated with the PTRS port corresponding to the TCI state with an actual transmission layer number of 2.

[0432] Optionally, when the transmission mode is SFN transmission, the number of PTRS ports corresponding to the different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is the same, and the same PTRS port corresponding to the different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same or different DMRS ports.

[0433] Optionally, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0434] The transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 1, and when the maximum number of PTRS ports configured for the SFN transmission is 1, the actual number of PTRS ports sent by the terminal is 1, and the bit width and / or indication method of the DCI indication field are determined as any one of the following:

[0435] The bit width of the DCI indication field is 0 bits;

[0436] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0437] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate an SRS resource set, or a TRP, or an antenna panel, or a DMRS port associated with a PTRS port corresponding to a TCI state in an STxMP configuration scenario.

[0438] Optionally, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0439] The transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 2, and when the maximum number of PTRS ports configured for the SFN transmission is 1, the actual number of PTRS ports sent by the terminal is 1. Determine the actual number of transmission layers for each SRS resource set, or each TRP, or each antenna panel, or each TCI state;

[0440] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0441] The bit width of the DCI indication field is 0 bits;

[0442] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0443] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate an SRS resource set, or a TRP, or an antenna panel, or a DMRS port associated with a PTRS port corresponding to a TCI state in an STxMP configuration scenario;

[0444] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same DMRS port, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0445] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario;

[0446] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the first SRS resource set in the STxMP configuration scenario, or the first TRP, or the first antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the first TCI state, and the LSB of the DCI indication field indicates the second SRS resource set in the STxMP configuration scenario, or the second TRP, or the second antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the second TCI state.

[0447] Optionally, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0448] The transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 2, and when the maximum number of PTRS ports configured for the SFN transmission is 1, the actual number of PTRS ports sent by the terminal is 1. Determine the actual number of transmission layers for each SRS resource set, or each TRP, or each antenna panel, or each TCI state;

[0449] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with different DMRS ports, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0450] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates another DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0451] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario.

[0452] Optionally, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0453] When the transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 2, and the maximum number of PTRS ports configured for the SFN transmission is 2, determining the actual number of PTRS ports sent by the terminal;

[0454] If the actual number of PTRS ports sent by the terminal is 1, determine the actual number of transmission layers for each SRS resource set, or each TRP, or each antenna panel, or each TCI state;

[0455] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0456] The bit width of the DCI indication field is 0 bits;

[0457] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0458] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate the DMRS port associated with the PTRS port 0 corresponding to an SRS resource set, or a TRP, or an antenna panel, or a TCI state in the STxMP configuration scenario;

[0459] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same DMRS port, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0460] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario;

[0461] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0462] When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with different DMRS ports, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0463] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates another DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0464] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario.

[0465] Optionally, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0466] When the transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 2, and the maximum number of PTRS ports configured for the SFN transmission is 2, determining the actual number of PTRS ports sent by the terminal;

[0467] When the actual number of PTRS ports sent by the terminal is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same DMRS port, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0468] The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with an SRS resource set, or a TRP, or an antenna panel, or a PTRS port corresponding to a TCI state in an STxMP configuration scenario;

[0469] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponding to the PTRS port 0 in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the PTRS port 1 corresponding to the first TCI state in the STxMP configuration scenario;

[0470] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the first SRS resource set, or the first TRP, or the first antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the second SRS resource set, or the second TRP, or the second antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0471] The bit width of the DCI indication field is 4 bits. The first two bits of the DCI indication field indicate the DMRS ports associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the two PTRS ports corresponding to the first TCI state in the STxMP configuration scenario. The last two bits of the DCI indication field indicate the DMRS ports associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the two PTRS ports corresponding to the second TCI state in the STxMP configuration scenario.

[0472] Optionally, determining the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes:

[0473] When the transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 2, and the maximum number of PTRS ports configured for the SFN transmission is 2, determining the actual number of PTRS ports sent by the terminal;

[0474] When the actual number of PTRS ports sent by the terminal is 2, if different SRS resource sets, or different TRPs, or different antenna panels, or the same PTRS port corresponding to different TCI states is associated with different DMRS ports, the bit width and / or indication method of the DCI indication field is determined to be any one of the following:

[0475] The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the first SRS resource set, or the first TRP, or the first antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the second SRS resource set, or the second TRP, or the second antenna panel, or the DMRS port associated with the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario;

[0476] The bit width of the DCI indication field is 4 bits. The first two bits of the DCI indication field indicate the DMRS ports associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the two PTRS ports corresponding to the first TCI state in the STxMP configuration scenario. The last two bits of the DCI indication field indicate the DMRS ports associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the two PTRS ports corresponding to the second TCI state in the STxMP configuration scenario.

[0477] Optionally, determining the actual PTRS port number sent by the terminal includes:

[0478] Determine a target SRS resource set, a target TRP, a target antenna panel, or a target TCI state from two SRS resource sets, two TRPs, two antenna panels, or two TCI states based on at least one of a predefined rule, a network configuration, and a network indication;

[0479] The actual PTRS port number of the target SRS resource set, or the target TRP, or the target antenna panel, or the target TCI state is determined as the actual PTRS port number sent by the terminal.

[0480] Optionally, when SFN transmission is performed based on the codebook, the actual number of PTRS ports of the target SRS resource set, target TRP, target antenna panel, or target TCI state is determined based on the precoding matrix indication TPMI configured by the network device for the target SRS resource set, target TRP, target antenna panel, or target TCI state;

[0481] When SFN transmission is performed based on a non-codebook, the actual number of PTRS ports of the target SRS resource set, target TRP, target antenna panel, or target TCI state is determined based on the PTRS index (PTRS index) indicated by the SRI field corresponding to the target SRS resource set, target TRP, target antenna panel, or target TCI state in the DCI signaling.

[0482] For a detailed introduction to step 4201, please refer to the above embodiment description.

[0483] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0484] FIG5 is a flow chart of a determination method according to an embodiment of the present disclosure. As shown in FIG5 , an embodiment of the present disclosure relates to a determination method for a communication system, wherein the method includes at least one of the following:

[0485] Step 5101: When the transmission scheme is MTRP transmission for PUSCH in an uplink STxMP configuration scenario, the network device determines the bit width and / or indication method of the first DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of Phase Tracking Reference Signal (PTRS) ports. The DCI indication field is used to indicate the association relationship between ports.

[0486] Step 5102: When the transmission scheme is PUSCH and MTRP transmission is performed in the uplink STxMP configuration scenario, the terminal determines the bit width and / or indication method of the first DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of phase tracking reference signal PTRS ports. The DCI indication field is used to indicate the association relationship between ports.

[0487] Optional implementations of steps 5101 and 5102 may refer to the description of the above embodiment.

[0488] In some embodiments, the above method may include the methods of the above embodiments of the communication system side, terminal side, network terminal side, etc., which will not be repeated here.

[0489] The determination method involved in the embodiment of the present disclosure may include at least one of steps S5101 and S5102. For example, step S5101 may be implemented as an independent embodiment, and step S5102 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0490] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0491] The following is an exemplary introduction to the above method.

[0492] This method is used to determine the PTRS-DMRS association indication method in STxMP transmission. The specific implementation scheme is as follows:

[0493] Determine the indication method of the PTRS-DMRS association indication field according to different transmission schemes

[0494] When the network is configured with PTRS transmission UL-PTRS-present enabled,

[0495] For codebook-based Single-TRP transmission with maxRank 1 to 4, the number of bits is determined based on the codebook subset, the actual TPMI & TRI, and the maximum number of configured PTRS ports. The number of PTRS ports actually used and the associated DMRS ports is determined by the corresponding DCI indication method and bit field, which ranges from 0 to 2 bits depending on the situation. (legacy)

[0496] Codebook-based SDM transmission,

[0497] When maxRank'=1, the following options are possible:

[0498] Alt.1: Regardless of the codebook subset configuration, this indicator field does not exist and the corresponding bit number is 0;

[0499] Alt.2: The number of bits in this indication field is 2; the MSB is used to indicate PTRS port 0, and the LSB is used to indicate PTRS port 1;

[0500] Alt.3: Based on the optimization of alt.2, the number of bits in this indication field is 1, and only 1 bit is used to indicate PTRS port 0. PTRS port 1 is default and is associated by default through DMRS configuration;

[0501] When maxRank'=2, then

[0502] The number of bits in the indication field is 2; the MSB is used to indicate PTRS port 0, and the LSB is used to indicate PTRS port 1;

[0503] CB-based SFN transmission,

[0504] When maxRank'=1, then:

[0505] Alt.1: Regardless of the codebook subset configuration, this indicator field does not exist and the number of bits in this indicator field is 0;

[0506] When maxRank'=2, then

[0507] When the maximum number of PTRS ports is 1,

[0508] Alt.1: The number of bits in this indicator field is 1; (when PTRS is SFN)

[0509] Alt.2: The number of bits in the indicator field is 2; (when PTRS is non-SFN)

[0510] When the maximum number of PTRS ports is 2,

[0511] Alt.1: The number of bits in this indication field is 2. The actual number of PTRS ports is determined according to the default rule (such as TPMI#1). The MSB is used to indicate PTRS port 0, and the LSB is used to indicate PTRS port 1. (When PTRS is SFN)

[0512] Alt.2: The number of bits in this indication field is 1. The actual number of PTRS ports is determined according to the default rule (such as TPMI#1); 1 bit is used to indicate PTRS port 0; (when PTRS is SFN)

[0513] Alt.3: The number of bits in this indication field is 2; the actual number of PTRS ports is determined according to the default rule (such as TPMI#1); the MSB is used to indicate PTRS port 0, and the LSB is used to indicate PTRS port 1; (when PTRS is non-SFN)

[0514] For NCB-based SDM / SFN transmission, the PTRS index configured by SRS is ignored;

[0515] Specific rules can be transmitted with CB

[0516] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0517] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0518] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0519] Figure 6A is a structural diagram of a terminal or network device proposed in an embodiment of the present disclosure. As shown in Figure 6A, it includes: a determination module for determining the bit width and / or indication method of the first DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of phase tracking reference signal PTRS ports when the transmission scheme is the physical uplink shared channel PUSCH and multiple transmitting and receiving points MTRP transmission is performed in the uplink multi-antenna panel simultaneous transmission STxMP configuration scenario, and the DCI indication field is used to indicate the association relationship between ports. Optionally, the above-mentioned determination module is used to execute the steps related to "determination" performed in any of the above methods, and optionally, it also includes at least one of a receiving module and a sending module, the above-mentioned receiving module is used to execute the steps related to reception performed in any of the above methods, and the above-mentioned sending module is used to execute the steps related to "sending" performed in any of the above methods, which will not be repeated here.

[0520] Figure 7A is a schematic diagram of the structure of a communication device 7100 proposed in an embodiment of the present disclosure. Communication device 7100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 7100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0521] As shown in Figure 7A, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The processor 7101 is used to call instructions to enable the communication device 7100 to perform any of the above methods.

[0522] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may be located outside the communication device 7100.

[0523] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the communication steps such as sending and receiving in the above method are performed by the transceiver 7103, and the other steps are performed by the processor 7101.

[0524] In some embodiments, a transceiver may include a receiver and a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0525] Optionally, the communication device 7100 further includes one or more interface circuits 7104, which are connected to the memory 7102. The interface circuits 7104 may be configured to receive signals from the memory 7102 or other devices, and may be configured to send signals to the memory 7102 or other devices. For example, the interface circuits 7104 may read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0526] The communication device 7100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0527] 7B is a schematic diagram of the structure of a chip 7200 proposed in an embodiment of the present disclosure. If the communication device 7100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 7200 shown in FIG7B , but the present disclosure is not limited thereto.

[0528] The chip 7200 includes one or more processors 7201 , and the processor 7201 is used to call instructions so that the chip 7200 executes any of the above methods.

[0529] In some embodiments, chip 7200 further includes one or more interface circuits 7202, which are connected to memory 7203. Interface circuit 7202 can be used to receive signals from memory 7203 or other devices, and can be used to send signals to memory 7203 or other devices. For example, interface circuit 7202 can read instructions stored in memory 7203 and send the instructions to processor 7201. Optionally, the terms interface circuit, interface, transceiver pin, and transceiver are interchangeable.

[0530] In some embodiments, the chip 7200 further includes one or more memories 7203 for storing instructions. Alternatively, all or part of the memories 7203 may be located outside the chip 7200.

[0531] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 7100, the communication device 7100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.

[0532] The present disclosure also provides a program product, which, when executed by the communication device 7100, enables the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0533] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

[0534] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented using software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0535] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0536] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0537] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A determination method, characterized in that: The method comprises: When the transmission scheme is that the physical uplink shared channel PUSCH performs multi-transmitting and receiving point MTRP transmission in the uplink multi-antenna panel simultaneous transmission STxMP configuration scenario, the bit width and / or indication method of the downlink control information DCI indication field is determined based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of phase tracking reference signal PTRS ports. The DCI indication field is used to indicate the association relationship between ports.

2. The method according to claim 1, characterized in that The MTRP transmission in the STxMP configuration scenario includes: two antenna panels of the terminal simultaneously send PUSCH to two different TRP directions, wherein the PUSCH transmissions in different TRP directions are associated with different sounding reference signal SRS resource sets and different transmission configuration indication states TCI state.

3. The method according to claim 1, characterized in that The transmission mode includes: space division multiplexing SDM transmission or single frequency network SFN transmission.

4. The method according to claim 1, characterized in that The association relationship between the ports includes: an association relationship between a PTRS port and a demodulation reference signal DMRS port.

5. The method according to any one of claims 1 to 4, characterized in that: The method further comprises: Determine MTRP transmission based on the sounding reference signal resource set indication SRI field in the DCI signaling; 6. The method according to any one of claims 1 to 5, characterized in that: The method further comprises: Based on the radio resource control RRC signaling, it is determined that the transmission mode of the MTRP transmission is SDM transmission or SFN transmission.

7. The method according to any one of claims 1 to 6, characterized in that: The maximum number of transmission layers is: the maximum number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state; The maximum number of PTRS ports is: the maximum number of PTRS ports sent by the terminal, wherein the number of PTRS ports corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states of the terminal are the same.

8. The method according to any one of claims 1 to 7, characterized in that: When the transmission mode is SDM transmission, the maximum number of PTRS ports is 2, the actual number of PTRS ports sent by the terminal is 2, each SRS resource set, or each TRP, or each antenna panel, or each TCI state corresponds to a PTRS port, and different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states correspond to different PTRS ports for transmission.

9. The method according to any one of claims 1 to 8, characterized in that: The determining of the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes: The transmission mode is SDM transmission, when the maximum number of transmission layers configured corresponding to the SDM transmission is 1, the actual number of PTRS ports sent by the terminal is 2, and the bit width and / or indication method of the DCI indication field is determined to be any one of the following: The bit width of the DCI indication field is 0 bit; The bit width of the DCI indication field is 2 bits, and the high-order bit MSB of the DCI indication field indicates the DMRS port associated with the PTRS port 0 corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state in the STxMP configuration scenario; the low-order bit LSB of the DCI indication field indicates the DMRS port associated with the PTRS port 1 corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state in the STxMP configuration scenario; The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with a PTRS port corresponding to an SRS resource set, or a TRP, or an antenna panel, or a TCI state in an STxMP configuration scenario.

10. The method according to any one of claims 1 to 9, characterized in that: The determining of the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes: The transmission mode is SDM transmission. When the maximum number of transmission layers configured for the SDM transmission is 2, the actual number of PTRS ports sent by the terminal is 2, and the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is determined; When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, the bit width of the DCI indication field is determined to be 2 bits, and the MSB of the DCI indication field indicates the PTRS port corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state in the STxMP configuration scenario 0, the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the DMRS port associated with the PTRS port 1 corresponding to the second TCI state in the STxMP configuration scenario; When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following: The bit width of the DCI indication field is 0 bit; The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the PTRS port 0 corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the PTRS port 1 corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state in the STxMP configuration scenario; The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with a PTRS port corresponding to an SRS resource set, or a TRP, or an antenna panel, or a TCI state in an STxMP configuration scenario; When the actual number of transmission layers corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state is 1, the actual number of transmission layers corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state is 2, or, when the actual number of transmission layers corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state is 2, the actual number of transmission layers corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state is 1; determine the bit width and / or indication method of the DCI indication field as any one of the following: The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the PTRS port 0 corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the PTRS port 1 corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state in the STxMP configuration scenario; The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate the SRS resource set with an actual transmission layer number of 2, or the TRP with an actual transmission layer number of 2, or the antenna panel with an actual transmission layer number of 2, or the DMRS port associated with the PTRS port corresponding to the TCI state with an actual transmission layer number of 2.

11. The method according to any one of claims 1 to 10, characterized in that: When the transmission mode is SFN transmission, the number of PTRS ports corresponding to the different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is the same, and the same PTRS port corresponding to the different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same or different DMRS ports.

12. The method according to any one of claims 1 to 11, characterized in that: The determining of the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes: The transmission mode is SFN transmission, the maximum transmission layer configured corresponding to the SFN transmission is 1, when the maximum number of PTRS ports configured corresponding to the SFN transmission is 1, the actual number of PTRS ports sent by the terminal is 1, and the bit width and / or indication method of the DCI indication field is determined as any one of the following: The bit width of the DCI indication field is 0 bit; The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponding to the PTRS port 0 in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario; The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with a PTRS port corresponding to an SRS resource set, or a TRP, or an antenna panel, or a TCI state in an STxMP configuration scenario.

13. The method according to any one of claims 1 to 12, characterized in that: The determining of the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes: The transmission mode is SFN transmission, the maximum transmission layer configured for the SFN transmission is 2, and the maximum number of PTRS ports configured for the SFN transmission is 1, and the actual number of PTRS ports sent by the terminal is 1, and each SRS resource set or each TRP, or the actual number of transmission layers per antenna panel or per TCI state; When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following: The bit width of the DCI indication field is 0 bit; The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponding to the PTRS port 0 in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario; The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with a PTRS port corresponding to an SRS resource set, or a TRP, or an antenna panel, or a TCI state in an STxMP configuration scenario; When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, the bit width and / or indication method of the DCI indication field is determined to be any one of the following: The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with a PTRS port corresponding to an SRS resource set, or a TRP, or an antenna panel, or a TCI state in an STxMP configuration scenario; The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the PTRS port 0 corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the PTRS port 0 corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state in the STxMP configuration scenario.

14. The method according to claim 13, characterized in that The transmission mode is SFN transmission, the maximum transmission layer configured corresponding to the SFN transmission is 2, the maximum number of PTRS ports configured corresponding to the SFN transmission is 1, when the actual number of PTRS ports sent by the terminal is 1, and the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with different DMRS ports, or the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same DMRS port.

15. The method according to any one of claims 1 to 14, characterized in that: The determining of the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes: When the transmission mode is SFN transmission, the maximum transmission layer configured corresponding to the SFN transmission is 2, and the maximum number of PTRS ports configured corresponding to the SFN transmission is 2, determining the actual number of PTRS ports sent by the terminal; If the actual number of PTRS ports sent by the terminal is 1, determine the actual number of transmission layers for each SRS resource set, or each TRP, or each antenna panel, or each TCI state; When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 1, the bit width and / or indication method of the DCI indication field is determined to be any one of the following: The bit width of the DCI indication field is 0 bit; The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponding to the PTRS port 0 in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario; The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with a PTRS port 0 corresponding to an SRS resource set, or a TRP, or an antenna panel, or a TCI state in an STxMP configuration scenario; When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same DMRS port, the bit width and / or indication method of the DCI indication field is determined to be any one of the following: The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with a PTRS port corresponding to an SRS resource set, or a TRP, or an antenna panel, or a TCI state in an STxMP configuration scenario; The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponding to the PTRS port 0 in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario; When the actual number of transmission layers corresponding to each SRS resource set, or each TRP, or each antenna panel, or each TCI state is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with different DMRS ports, the bit width and / or indication method of the DCI indication field is determined to be any one of the following: The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponding to the PTRS port 0 in the STxMP configuration scenario, and the LSB of the DCI indication field indicates another DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario; The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with a PTRS port corresponding to an SRS resource set, or a TRP, or an antenna panel, or a TCI state in an STxMP configuration scenario.

16. The method according to any one of claims 1 to 15, characterized in that: The determining of the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes: When the transmission mode is SFN transmission, the maximum transmission layer configured corresponding to the SFN transmission is 2, and the maximum number of PTRS ports configured corresponding to the SFN transmission is 2, determining the actual number of PTRS ports sent by the terminal; When the actual number of PTRS ports sent by the terminal is 2, if the same PTRS port corresponding to different SRS resource sets, or different TRPs, or different antenna panels, or different TCI states is associated with the same DMRS port, the bit width and / or indication method of the DCI indication field is determined to be any one of the following: The bit width of the DCI indication field is 1 bit, and the DCI indication field is used to indicate a DMRS port associated with a PTRS port corresponding to an SRS resource set, or a TRP, or an antenna panel, or a TCI state in an STxMP configuration scenario; The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the PTRS port 0 corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the PTRS port 1 corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state in the STxMP configuration scenario; The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponding to the PTRS port 0 in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario; The bit width of the DCI indication field is 4 bits, and the first two bits of the DCI indication field indicate the DMRS ports associated with the two PTRS ports corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state in the STxMP configuration scenario, and the last two bits of the DCI indication field indicate the DMRS ports associated with the two PTRS ports corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state in the STxMP configuration scenario.

17. The method according to claim 16, characterized in that The determining of the bit width and / or indication method of the DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of PTRS ports includes: When the transmission mode is SFN transmission, the maximum transmission layer configured corresponding to the SFN transmission is 2, and the maximum number of PTRS ports configured corresponding to the SFN transmission is 2, determining the actual number of PTRS ports sent by the terminal; When the actual number of PTRS ports sent by the terminal is 2, if different SRS resource sets, or different TRPs, or different days The line panel, or the same PTRS port corresponding to different TCI states is associated with different DMRS ports, and the bit width and / or indication method of the DCI indication field is determined to be any one of the following: The bit width of the DCI indication field is 2 bits, the MSB of the DCI indication field indicates the DMRS port associated with the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state corresponding to the PTRS port 0 in the STxMP configuration scenario, and the LSB of the DCI indication field indicates the DMRS port associated with the second SRS resource set, or the second TRP, or the second antenna panel, or the PTRS port 0 corresponding to the second TCI state in the STxMP configuration scenario; The bit width of the DCI indication field is 4 bits, and the first two bits of the DCI indication field indicate the DMRS ports associated with the two PTRS ports corresponding to the first SRS resource set, or the first TRP, or the first antenna panel, or the first TCI state in the STxMP configuration scenario, and the last two bits of the DCI indication field indicate the DMRS ports associated with the two PTRS ports corresponding to the second SRS resource set, or the second TRP, or the second antenna panel, or the second TCI state in the STxMP configuration scenario.

18. The method according to claim 15, 16 or 17, characterized in that: The determining the actual PTRS port number sent by the terminal includes: Determine a target SRS resource set, a target TRP, a target antenna panel, or a target TCI state from two SRS resource sets, two TRPs, two antenna panels, or two TCI states based on at least one of a predefined rule, a network configuration, and a network indication; The actual number of PTRS ports of the target SRS resource set, or the target TRP, or the target antenna panel, or the target TCI state is determined as the actual number of PTRS ports sent by the terminal.

19. The method according to claim 18, characterized in that The method further comprises: When SFN transmission is performed based on the codebook, the actual number of PTRS ports of the target SRS resource set, the target TRP, the target antenna panel, or the target TCI state is determined based on the precoding matrix indication TPMI configured by the network device for the target SRS resource set, the target TRP, the target antenna panel, or the target TCI state; When SFN transmission is performed based on a non-codebook, the actual number of PTRS ports of the target SRS resource set, or target TRP, or target antenna panel, or target TCI state is determined based on the PTRS index (PTRS index) indicated by the SRI field corresponding to the target SRS resource set, or target TRP, or target antenna panel, or target TCI state in the DCI signaling.

20. A determination method, characterized in that: Used in a communication system, the communication system comprising a terminal and a network device, the method comprising at least one of the following: When the transmission scheme is that PUSCH performs MTRP transmission in the uplink STxMP configuration scenario, the network device determines the bit width and / or indication method of the first DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of phase tracking reference signal PTRS ports, and the DCI indication field is used to indicate the association relationship between the ports; When the transmission scheme is that PUSCH performs MTRP transmission in the uplink STxMP configuration scenario, the terminal determines the bit width and / or indication method of the first DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of phase tracking reference signal PTRS ports, and the DCI indication field is used to indicate the association relationship between ports.

21. A device comprising: A determination module is used to determine the bit width and / or indication method of the first DCI indication field based on at least one of the transmission mode, the maximum number of transmission layers, and the maximum number of phase tracking reference signal PTRS ports when the transmission scheme is that the physical uplink shared channel PUSCH performs multi-transmitting and receiving point MTRP transmission in the uplink multi-antenna panel simultaneous transmission STxMP configuration scenario. The DCI indication field is used to indicate the association relationship between ports.

22. A communication device, characterized in that: include: One or more processors; The processor is used to call instructions so that the communication device executes the determination method described in any one of claims 1-19.

23. A communication system, characterized in that: The method comprises a terminal and a network device, wherein the terminal is configured to implement the determination method according to any one of claims 1 to 15, and the network device is configured to implement the determination method according to any one of claims 1 to 19.

24. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is caused to execute the determination method according to any one of claims 1 to 19.

Images