Communication method, terminal, network device, communication device, and storage medium

Abstract

The present application relates to a communication method, a terminal, a network device, a communication device, a storage medium, and a program product. The method comprises: receiving first information, wherein the first information is used for determining first precoding information, and the first precoding information is used for codebook-based PUSCH transmission under a MTRP configuration of S-DCI; wherein the first information comprises at least two of the following TPMI indication fields; in the at least two TPMI indication fields, different TPMI indication fields correspond to different TCI states and / or spatial relationships and / or TRPs, wherein the terminal is a terminal having three transmitting antennas. According to the solution of the present application, precoding indication of MTRP transmission of a terminal having three transmitting antennas can be realized.

Description

Communication method, terminal, network device, communication device, storage medium Technical Field

[0001] The present disclosure relates to the field of wireless communications, and in particular to a communication method, a terminal, a network device, a communication device, a storage medium, and a program product. Background Art

[0002] In a communication system, a terminal can send a sounding reference signal (SRS) to an access network device to determine uplink channel quality. The SRS resources used by the terminal to transmit SRS can be configured by the access network device. With the advancement of communication technology, a terminal may have three transmit antennas. In this case, the access network device needs to be able to configure the corresponding SRS resources for the terminal, which support SRS transmission for a terminal with three transmit antennas.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure relate to a communication method, a terminal, a network device, a communication device, a storage medium, and a program product to implement precoding indication of MTRP transmission of a terminal with three transmitting antennas.

[0005] According to a first aspect of an embodiment of the present disclosure, a communication method is provided. The communication method is performed by a terminal. The communication method includes: receiving first information, wherein the first information is used to determine first precoding information, and the first precoding information is used for codebook-based PUSCH transmission under the MTRP configuration of S-DCI; wherein the first information includes the following at least two TPMI indication fields; in the at least two TPMI indication fields, different TPMI indication fields correspond to different TCI states and / or spatial relationships and / or TRPs; wherein the terminal is a 3-transmitting antenna terminal.

[0006] According to a second aspect of an embodiment of the present disclosure, a communication method is provided. The communication method is performed by a network device. The communication method includes: sending first information to a terminal, wherein the first information is used to determine first precoding information, and the first precoding information is used for codebook-based PUSCH transmission under the MTRP configuration of S-DCI; wherein the first information includes the following at least two TPMI indication fields; in the at least two TPMI indication fields, different TPMI indication fields correspond to different TCI states and / or spatial relationships and / or TRPs; wherein the terminal is a 3-transmitting antenna terminal.

[0007] According to a third aspect of an embodiment of the present disclosure, a terminal is provided. The terminal includes a transceiver module. The transceiver module is configured to: receive first information, wherein the first information is used to determine first precoding information, and the first precoding information is used for codebook-based PUSCH transmission under the MTRP configuration of the S-DCI; wherein the first information includes the following at least two TPMI indication fields; in the at least two TPMI indication fields, different TPMI indication fields correspond to different TCI states and / or spatial relationships and / or TRPs; wherein the terminal is a three-transmit antenna terminal.

[0008] According to a fourth aspect of an embodiment of the present disclosure, a network device is provided. The network device includes a transceiver module. The transceiver module is configured to: send first information to a terminal, wherein the first information is used to determine first precoding information, and the first precoding information is used for codebook-based PUSCH transmission under the MTRP configuration of the S-DCI; wherein the first information includes the following at least two TPMI indication fields; in the at least two TPMI indication fields, different TPMI indication fields correspond to different TCI states and / or spatial relationships and / or TRPs; wherein the terminal is a 3-transmitting antenna terminal.

[0009] According to a fifth aspect of an embodiment of the present disclosure, a communication device is provided. The communication device includes one or more processors and a memory storing instructions. When the instructions are executed by the communication device, the communication device implements the communication method described in the first aspect.

[0010] According to a sixth aspect of an embodiment of the present disclosure, a communication device is provided. The communication device includes one or more processors and a memory storing instructions. When the instructions are executed by the communication device, the communication device implements the communication method described in the second aspect.

[0011] According to a seventh aspect of an embodiment of the present disclosure, a communication system is provided. The communication system includes a terminal and a network device. The terminal is configured to implement the communication method described in the first aspect. The network device is configured to implement the communication method described in the second aspect.

[0012] According to an eighth aspect of an embodiment of the present disclosure, a storage medium is provided. The storage medium stores instructions. When the instructions are executed on a communication device, the communication device executes the communication method described in the first aspect or the second aspect.

[0013] According to a ninth aspect of the embodiments of the present disclosure, a program product is provided, which, when executed by a communication device, causes the communication device to execute the communication method as described in the first or second aspect.

[0014] According to a tenth aspect of the embodiments of the present disclosure, a computer program is provided, which, when executed on a computer, causes the computer to execute the communication method according to the first aspect or the second aspect.

[0015] According to an eleventh aspect of the embodiments of the present disclosure, a chip or a chip system is provided. The chip or chip system includes a processing circuit. The processing circuit is configured to execute the communication method described in the first aspect or the second aspect.

[0016] According to the embodiment of the present disclosure, it is possible to implement the precoding indication of MTRP transmission of a terminal with three transmitting antennas, thereby implementing the transmission of a PUSCH based on the MTRP configuration according to the precoding indication.

[0017] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and do not constitute limitations on the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention.

[0019] FIG1 is a schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

[0020] FIG2 is a schematic diagram of mapping SRS resources on time-frequency domain resources.

[0021] FIG3 is an exemplary interaction diagram of a communication method provided according to an embodiment of the present disclosure.

[0022] FIG4 is an exemplary flowchart of a communication method provided according to an embodiment of the present disclosure.

[0023] FIG5 is an exemplary flowchart of a communication method provided according to an embodiment of the present disclosure.

[0024] FIG6 is an exemplary interaction diagram of a communication method provided according to an embodiment of the present disclosure.

[0025] FIG7 is an exemplary structural diagram of a communication device provided according to an embodiment of the present disclosure.

[0026] FIG8A is a schematic structural diagram of a communication device provided according to an embodiment of the present disclosure.

[0027] FIG8B is a schematic structural diagram of a chip provided according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0028] Embodiments of the present disclosure provide a communication method, a terminal, a network device, a communication device, a storage medium, and a program product.

[0029] In a first aspect, embodiments of the present disclosure provide a communication method. The communication method is performed by a terminal. The communication method includes: receiving first information, wherein the first information is used to determine first precoding information, the first precoding information being used for codebook-based PUSCH transmission under the MTRP configuration of the S-DCI; wherein the first information includes at least two TPMI indication fields; in the at least two TPMI indication fields, different TPMI indication fields correspond to different TCI states and / or spatial relationships and / or TRPs; and wherein the terminal is a three-transmit antenna terminal.

[0030] In this embodiment, the first information may include multiple TPMI indicator fields. Using the multiple TPMI indicator fields, a terminal receiving the first information can determine the corresponding first precoding information, which is used to implement PUSCH transmission. Because the multiple TPMI indicator fields can correspond to different TCI states and / or spatial relationships and / or TRPs, the terminal can implement codebook-based PUSCH transmission under the MTRP configuration.

[0031] In combination with some embodiments of the first aspect, in some embodiments, PUSCH transmission can be achieved through SRS resources of two codebook-based SRS resource sets, each SRS resource set in the two SRS resource sets corresponding to a different TCI state and / or spatial relationship and / or TRP.

[0032] In combination with some embodiments of the first aspect, in some embodiments, PUSCH transmission can be implemented through 3-port SRS resources, the number of 3-port SRS resources is less than or equal to 3, and the 3-port SRS resources are used to obtain uplink CSI through 3 SRS ports.

[0033] In combination with some embodiments of the first aspect, in some embodiments, a 3-port SRS resource can be implemented based on one of the following SRS resource combinations: 1 1-port SRS resource; 1 2-port SRS resource; 3 1-port SRS resources; 2 2-port SRS resources; 1 1-port SRS resource and 1 2-port SRS resource; 1 4-port SRS resource; 1 8-port SRS resource.

[0034] In conjunction with some embodiments of the first aspect, in some embodiments, each of the at least two TPMI indication fields may be used to indicate at least one of the following: TRI; TPMI.

[0035] With reference to some embodiments of the first aspect, in some embodiments, PUSCH transmission may be SDM transmission based on simultaneous transmission of multiple panels.

[0036] With reference to some embodiments of the first aspect, in some embodiments, the actual scheduling of PUSCH transmission may be MTRP transmission, and the maximum number of transmission layers supported by PUSCH transmission may be 2.

[0037] In conjunction with some embodiments of the first aspect, in some embodiments, MTRP transmission is indicated by a first code point value in an SRS resource set indicator.

[0038] With reference to some embodiments of the first aspect, in some embodiments, the actual scheduling of PUSCH transmission may be STRP transmission, and the maximum number of transmission layers supported by PUSCH transmission may be 2 or 3.

[0039] In combination with some embodiments of the first aspect, in some embodiments, STRP transmission is indicated by a second code point value in the SRS resource set indicator.

[0040] In conjunction with some embodiments of the first aspect, in some embodiments, at least two TPMI indication fields may correspond to the same index table.

[0041] With reference to some embodiments of the first aspect, in some embodiments, the bit width of at least two TPMI indication fields is 3.

[0042] In combination with some embodiments of the first aspect, in some embodiments, PUSCH transmission may be one of the following transmissions: TDM based on MTRP, SFN based on simultaneous transmission of multiple panels.

[0043] With reference to some embodiments of the first aspect, in some embodiments, the maximum number of transmission layers supported by PUSCH transmission may be 2 or 3.

[0044] In conjunction with some embodiments of the first aspect, in some embodiments, at least two TPMI indication fields of the first information may correspond to different index tables respectively.

[0045] With reference to some embodiments of the first aspect, in some embodiments, the bit width of the first TPMI indication field of the at least two TPMI indication fields of the first information may be 3, and the bit width of the second TPMI indication field may be 2.

[0046] In combination with some embodiments of the first aspect, in some embodiments, the first TPMI indication field of the at least two TPMI indication fields of the first information may indicate TRI and TPMI, and the second TPMI indication field may indicate only TPMI; wherein the at least two TPMI indication fields may correspond to the same TRI.

[0047] In combination with some embodiments of the first aspect, in some embodiments, the above-mentioned communication method may further include: receiving second information, wherein the second information is used to determine the transmission scheme of the terminal; wherein the transmission scheme includes at least one of the following: SDM based on simultaneous transmission of multiple panels, SFN based on simultaneous transmission of multiple panels, and TDM based on MTRP.

[0048] In combination with some embodiments of the first aspect, in some embodiments, the above-mentioned communication method may further include: sending third information, wherein the third information is used to report the terminal's support capability for at least one of the following transmission schemes: SDM based on simultaneous transmission of multiple panels, SFN based on simultaneous transmission of multiple panels, and TDM based on MTRP.

[0049] With reference to some embodiments of the first aspect, in some embodiments, the terminal supports only TDM PUSCH transmission by default.

[0050] In a second aspect, an embodiment of the present disclosure provides a communication method. The communication method is performed by a network device. The communication method includes: sending first information to a terminal, wherein the first information is used to determine first precoding information, and the first precoding information is used for codebook-based PUSCH transmission under the MTRP configuration of the S-DCI; wherein the first information includes the following at least two TPMI indication fields; in the at least two TPMI indication fields, different TPMI indication fields correspond to different TCI states and / or spatial relationships and / or TRPs; wherein the terminal is a three-transmit antenna terminal.

[0051] In this embodiment, the first information may include multiple TPMI indicator fields. Using the multiple TPMI indicator fields, a terminal receiving the first information can determine the corresponding first precoding information, which is used to implement PUSCH transmission. Because the multiple TPMI indicator fields can correspond to different TCI states and / or spatial relationships and / or TRPs, the terminal can implement codebook-based PUSCH transmission under the MTRP configuration.

[0052] In combination with some embodiments of the second aspect, in some embodiments, PUSCH transmission can be achieved through SRS resources of two codebook-based SRS resource sets, and each SRS resource set in the two SRS resource sets can correspond to a different TCI state and / or spatial relationship and / or TRP.

[0053] In combination with some embodiments of the second aspect, in some embodiments, PUSCH transmission can be implemented through 3-port SRS resources, the number of 3-port SRS resources is less than or equal to 3, and the 3-port SRS resources are used to obtain uplink CSI through 3 SRS ports.

[0054] In combination with some embodiments of the second aspect, in some embodiments, a 3-port SRS resource can be implemented based on one of the following SRS resource combinations: 1 1-port SRS resource; 1 2-port SRS resource; 3 1-port SRS resources; 2 2-port SRS resources; 1 1-port SRS resource and 1 2-port SRS resource; 1 4-port SRS resource; 1 8-port SRS resource.

[0055] In conjunction with some embodiments of the second aspect, in some embodiments, each of the at least two TPMI indication fields may be used to indicate at least one of the following: TRI; TPMI.

[0056] In conjunction with some embodiments of the second aspect, in some embodiments, PUSCH transmission may be SDM transmission based on simultaneous transmission of multiple panels.

[0057] In combination with some embodiments of the second aspect, in some embodiments, PUSCH transmission may be MTRP transmission, and the maximum number of transmission layers configured for PUSCH transmission support may be 2.

[0058] In combination with some embodiments of the second aspect, in some embodiments, MTRP transmission may be indicated by a first code point value in an SRS resource set indicator.

[0059] In combination with some embodiments of the second aspect, in some embodiments, PUSCH transmission may be STRP transmission, and the maximum number of transmission layers supported and configured for PUSCH transmission may be 2 or 3.

[0060] In combination with some embodiments of the second aspect, in some embodiments, STRP transmission may be indicated by a second code point value in an SRS resource set indicator.

[0061] In conjunction with some embodiments of the second aspect, in some embodiments, at least two TPMI indication fields may correspond to the same index table.

[0062] With reference to some embodiments of the second aspect, in some embodiments, the bit width of at least two TPMI indication fields may both be 3.

[0063] In combination with some embodiments of the second aspect, in some embodiments, PUSCH transmission may be one of the following transmissions: TDM based on MTRP, SFN based on simultaneous transmission of multiple panels.

[0064] In combination with some embodiments of the second aspect, in some embodiments, the maximum number of layer transmissions configured for PUSCH transmission support may be 2 or 3.

[0065] In conjunction with some embodiments of the second aspect, in some embodiments, at least two TPMI indication fields of the first information may correspond to different index tables respectively.

[0066] In conjunction with some embodiments of the second aspect, in some embodiments, the bit width of the first TPMI indication field of the at least two TPMI indication fields of the first information may be 3, and the bit width of the second TPMI indication field may be 2.

[0067] In combination with some embodiments of the second aspect, in some embodiments, the first TPMI indication field of the at least two TPMI indication fields of the first information may indicate TRI and TPMI, and the second TPMI indication field may indicate only TPMI; wherein the at least two TPMI indication fields may correspond to the same TRI.

[0068] In combination with some embodiments of the second aspect, in some embodiments, the above-mentioned communication method may further include: sending second information, wherein the second information is used to determine the transmission scheme of the terminal; wherein the transmission scheme includes at least one of the following: SDM based on simultaneous transmission of multiple panels, SFN based on simultaneous transmission of multiple panels, and TDM based on MTRP.

[0069] In combination with some embodiments of the second aspect, in some embodiments, the above-mentioned communication method may further include: receiving third information, wherein the third information is used to report the terminal's support capability for at least one of the following transmission schemes: SDM based on simultaneous transmission of multiple panels, SFN based on simultaneous transmission of multiple panels, and TDM based on MTRP.

[0070] In combination with some embodiments of the second aspect, in some embodiments, the terminal only supports TDM PUSCH transmission by default.

[0071] In a third aspect, embodiments of the present disclosure provide a terminal. The terminal includes a transceiver module. The transceiver module is configured to: receive first information, wherein the first information is used to determine first precoding information, the first precoding information being used for codebook-based PUSCH transmission under the MTRP configuration of the S-DCI; wherein the first information includes at least two TPMI indication fields; wherein different TPMI indication fields in the at least two TPMI indication fields correspond to different TCI states and / or spatial relationships and / or TRPs; and wherein the terminal is a three-transmit antenna terminal.

[0072] In combination with some embodiments of the third aspect, in some embodiments, PUSCH transmission can be achieved through SRS resources of two codebook-based SRS resource sets, each of the two SRS resource sets corresponding to a different TCI state and / or spatial relationship and / or TRP.

[0073] In combination with some embodiments of the third aspect, in some embodiments, PUSCH transmission can be implemented through 3-port SRS resources, the number of 3-port SRS resources is less than or equal to 3, and the 3-port SRS resources are used to obtain uplink CSI through 3 SRS ports.

[0074] In combination with some embodiments of the third aspect, in some embodiments, a 3-port SRS resource can be implemented based on one of the following SRS resource combinations: 1 1-port SRS resource; 1 2-port SRS resource; 3 1-port SRS resources; 2 2-port SRS resources; 1 1-port SRS resource and 1 2-port SRS resource; 1 4-port SRS resource; 1 8-port SRS resource.

[0075] In conjunction with some embodiments of the third aspect, in some embodiments, each of the at least two TPMI indication fields may be used to indicate at least one of the following: TRI; TPMI.

[0076] In combination with some embodiments of the third aspect, in some embodiments, PUSCH transmission may be SDM transmission based on simultaneous transmission of multiple panels.

[0077] In combination with some embodiments of the third aspect, in some embodiments, the actual scheduling of PUSCH transmission may be MTRP transmission, and the maximum number of transmission layers supported by PUSCH transmission may be 2.

[0078] In conjunction with some embodiments of the third aspect, in some embodiments, MTRP transmission is indicated by a first code point value in an SRS resource set indicator.

[0079] With reference to some embodiments of the first aspect, in some embodiments, the actual scheduling of PUSCH transmission may be STRP transmission, and the maximum number of transmission layers supported by PUSCH transmission may be 2 or 3.

[0080] In conjunction with some embodiments of the third aspect, in some embodiments, STRP transmission is indicated by a second code point value in the SRS resource set indicator.

[0081] In conjunction with some embodiments of the third aspect, in some embodiments, at least two TPMI indication fields may correspond to the same index table.

[0082] With reference to some embodiments of the third aspect, in some embodiments, the bit width of at least two TPMI indication fields is 3.

[0083] In combination with some embodiments of the third aspect, in some embodiments, PUSCH transmission may be one of the following transmissions: TDM based on MTRP, SFN based on multi-panel simultaneous transmission.

[0084] In combination with some embodiments of the third aspect, in some embodiments, the maximum number of transmission layers supported by PUSCH transmission may be 2 or 3.

[0085] With reference to some embodiments of the third aspect, in some embodiments, at least two TPMI indication fields of the first information may correspond to different index tables respectively.

[0086] In conjunction with some embodiments of the third aspect, in some embodiments, the bit width of the first TPMI indication field of the at least two TPMI indication fields of the first information may be 3, and the bit width of the second TPMI indication field may be 2.

[0087] In combination with some embodiments of the third aspect, in some embodiments, the first TPMI indication field of the at least two TPMI indication fields of the first information may indicate TRI and TPMI, and the second TPMI indication field may indicate only TPMI; wherein the at least two TPMI indication fields may correspond to the same TRI.

[0088] In combination with some embodiments of the third aspect, in some embodiments, the transceiver module can also be configured to: receive second information, wherein the second information is used to determine the transmission scheme of the terminal; wherein the transmission scheme includes at least one of the following: SDM based on simultaneous transmission of multiple panels, SFN based on simultaneous transmission of multiple panels, and TDM based on MTRP.

[0089] In combination with some embodiments of the third aspect, in some embodiments, the transceiver module can also be configured to: send third information, wherein the third information is used to report the terminal's support capability for at least one of the following transmission schemes: SDM based on simultaneous transmission of multiple panels, SFN based on simultaneous transmission of multiple panels, and TDM based on MTRP.

[0090] In combination with some embodiments of the third aspect, in some embodiments, the terminal only supports TDM PUSCH transmission by default.

[0091] In a fourth aspect, embodiments of the present disclosure provide a network device. The network device includes a transceiver module. The transceiver module is configured to: send first information to a terminal, wherein the first information is used to determine first precoding information, and the first precoding information is used for codebook-based PUSCH transmission under the MTRP configuration of the S-DCI; wherein the first information includes the following at least two TPMI indication fields; in the at least two TPMI indication fields, different TPMI indication fields correspond to different TCI states and / or spatial relationships and / or TRPs; wherein the terminal is a three-transmit antenna terminal.

[0092] In combination with some embodiments of the fourth aspect, in some embodiments, PUSCH transmission can be achieved through SRS resources of two codebook-based SRS resource sets, and each SRS resource set in the two SRS resource sets can correspond to a different TCI state and / or spatial relationship and / or TRP.

[0093] In combination with some embodiments of the fourth aspect, in some embodiments, PUSCH transmission can be implemented through 3-port SRS resources, the number of 3-port SRS resources is less than or equal to 3, and the 3-port SRS resources are used to obtain uplink CSI through 3 SRS ports.

[0094] In combination with some embodiments of the fourth aspect, in some embodiments, a 3-port SRS resource can be implemented based on one of the following SRS resource combinations: 1 1-port SRS resource; 1 2-port SRS resource; 3 1-port SRS resources; 2 2-port SRS resources; 1 1-port SRS resource and 1 2-port SRS resource; 1 4-port SRS resource; 1 8-port SRS resource.

[0095] In conjunction with some embodiments of the fourth aspect, in some embodiments, each of the at least two TPMI indication fields may be used to indicate at least one of the following: TRI; TPMI.

[0096] In conjunction with some embodiments of the fourth aspect, in some embodiments, PUSCH transmission may be SDM transmission based on simultaneous transmission of multiple panels.

[0097] In combination with some embodiments of the fourth aspect, in some embodiments, PUSCH transmission may be MTRP transmission, and the maximum number of transmission layers configured for PUSCH transmission support may be 2.

[0098] In combination with some embodiments of the fourth aspect, in some embodiments, MTRP transmission may be indicated by a first code point value in an SRS resource set indicator.

[0099] In combination with some embodiments of the fourth aspect, in some embodiments, PUSCH transmission may be STRP transmission, and the maximum number of transmission layers configured for PUSCH transmission support may be 2 or 3.

[0100] In combination with some embodiments of the fourth aspect, in some embodiments, STRP transmission may be indicated by a second code point value in an SRS resource set indicator.

[0101] In conjunction with some embodiments of the fourth aspect, in some embodiments, at least two TPMI indication fields may correspond to the same index table.

[0102] With reference to some embodiments of the fourth aspect, in some embodiments, the bit width of at least two TPMI indication fields may both be 3.

[0103] In combination with some embodiments of the fourth aspect, in some embodiments, PUSCH transmission may be one of the following transmissions: TDM based on MTRP, SFN based on simultaneous transmission of multiple panels.

[0104] In combination with some embodiments of the fourth aspect, in some embodiments, the maximum number of layer transmissions configured for PUSCH transmission support may be 2 or 3.

[0105] With reference to some embodiments of the fourth aspect, in some embodiments, at least two TPMI indication fields of the first information may correspond to different index tables respectively.

[0106] In conjunction with some embodiments of the fourth aspect, in some embodiments, the bit width of the first TPMI indication field of the at least two TPMI indication fields of the first information may be 3, and the bit width of the second TPMI indication field may be 2.

[0107] In combination with some embodiments of the fourth aspect, in some embodiments, the first TPMI indication field of the at least two TPMI indication fields of the first information may indicate TRI and TPMI, and the second TPMI indication field may only indicate TPMI; wherein the at least two TPMI indication fields may correspond to the same TRI.

[0108] In combination with some embodiments of the fourth aspect, in some embodiments, the transceiver module can also be configured to: send second information, wherein the second information is used to determine the transmission scheme of the terminal; wherein the transmission scheme includes at least one of the following: SDM based on simultaneous transmission of multiple panels, SFN based on simultaneous transmission of multiple panels, and TDM based on MTRP.

[0109] In combination with some embodiments of the fourth aspect, in some embodiments, the transceiver module can also be configured to: receive third information, wherein the third information is used to report the terminal's support capability for at least one of the following transmission schemes: SDM based on simultaneous transmission of multiple panels, SFN based on simultaneous transmission of multiple panels, and TDM based on MTRP.

[0110] In combination with some embodiments of the fourth aspect, in some embodiments, the terminal only supports TDM PUSCH transmission by default.

[0111] In a fifth aspect, embodiments of the present disclosure provide a communication device. The communication device includes one or more processors and a memory storing instructions. When the instructions are executed by the communication device, the communication device implements the communication method described in the first aspect and any possible implementation thereof.

[0112] In a sixth aspect, embodiments of the present disclosure provide a communication device. The communication device includes one or more processors and a memory storing instructions. When the instructions are executed by the communication device, the communication device implements the communication method described in the second aspect and any possible implementation thereof.

[0113] In a seventh aspect, embodiments of the present disclosure provide a communication system. The communication system includes a terminal and a network device. The terminal is configured to implement the communication method described in the first aspect and any one of its possible implementations. The network device is configured to implement the communication method described in the second aspect and any one of its possible implementations.

[0114] In an eighth aspect, an embodiment of the present disclosure provides a storage medium storing instructions that, when executed on a communication device, cause the communication device to execute the communication method as described in the first aspect, the second aspect, and any one of the possible implementations thereof.

[0115] In a ninth aspect, an embodiment of the present disclosure provides a program product. When the program product is executed by a communication device, the communication device executes the communication method as described in any one of the first aspect, the second aspect, and possible implementations thereof.

[0116] In a tenth aspect, an embodiment of the present disclosure provides a computer program. When the computer program is executed on a computer, the computer executes the communication method as described in any one of the first aspect, the second aspect, and possible implementations thereof.

[0117] In an eleventh aspect, embodiments of the present disclosure provide a chip or a chip system. The chip or chip system includes a processing circuit. The processing circuit is configured to execute the communication method as described in any one of the first aspect, the second aspect, and possible implementations thereof.

[0118] It is understandable that the above-mentioned terminals, network devices, communication devices, storage media, program products, computer programs, chips, and chip systems are all used to perform the methods provided by the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0119] The present disclosure provides a communication method, terminal, network device, communication device, storage medium, and program product. In some embodiments, the terms communication method, information processing method, and information transmission method are interchangeable; the terms communication device, communication function, and communication entity are interchangeable; and the terms communication system and information processing system are interchangeable.

[0120] 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.

[0121] In the embodiments of the present disclosure, unless otherwise specified or there is a logical conflict, 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.

[0122] 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.

[0123] 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 articles such as "a", "an", "the" in English are used in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0124] In the embodiments of the present disclosure, “plurality” refers to two or more than two.

[0125] In some embodiments, the terms "at least one", "one or more", etc. can be used interchangeably.

[0126] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0127] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0128] 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 example, if the description object is "information", then the "second information" and the "first information" can be the same information or different information, and their contents can be the same or different.

[0129] 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.

[0130] 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.

[0131] 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.

[0132] 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.

[0133] In some embodiments, "network" can be interpreted as devices included in the network (e.g., access network devices, core network devices, etc.). For example, a network device may include at least one access network device. For another example, a network device may include at least one core network device. For another example, a network device may include at least one access network device and at least one core network device.

[0134] 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", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0135] 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.

[0136] 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, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms 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.

[0137] 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.

[0138] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0139] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0140] 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.

[0141] FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1 , a communication system 100 includes a terminal 101 and a network device 102 .

[0142] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things (IoT) device, a car with communication function, a smart car, a tablet computer (Pad), 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.

[0143] In some embodiments, the network device 102 can be, for example, a node or device that accesses the terminal to a wireless network. The 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 satellite base station, a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0144] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces within the 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.

[0145] In some embodiments, the network device 102 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 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.

[0146] In some embodiments, the network device 102 may be one device, or multiple devices or a device group. The network device 102 may be virtual or physical.

[0147] 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.

[0148] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or some of the entities in the communication system 100 , but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system 100 may include all or some of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary. Each entity may be physical or virtual. 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.

[0149] The embodiments of the present disclosure may 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), and other technologies. Band (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 using other communication methods, and next-generation systems based on and extending these methods. Furthermore, a combination of multiple systems (for example, a combination of LTE or LTE-A with 5G) may also be applied.

[0150] In a communication system, a terminal can send an SRS to an access network device to obtain uplink channel quality. The SRS resources used by the terminal to send the SRS can be configured by the access network device. The access network device can send configuration information to the terminal to configure the SRS resources.

[0151] A terminal may have one or more antenna ports, and may transmit SRS via one or more antenna ports. In this case, the SRS resources configured by the access network device for the terminal may correspond to the number of antenna ports of the terminal. More specifically, an SRS resource may have one or more SRS ports, and the number of SRS ports may correspond to the number of antenna ports of the terminal. In some embodiments, the number of SRS ports supported by an SRS resource may be 1, 2, 4, 8, etc. In some embodiments, the number of SRS ports may be configured using the high-level parameter nrofSRS-Ports in the configuration information.

[0152] The SRS resource may occupy one or more symbols in the time domain (e.g., orthogonal frequency division multiplexing (OFDM) symbols). The symbols occupied by the SRS resource may be continuous in the time domain. In some embodiments, the number of available time domain resources, i.e., the number of symbols that the SRS resource may occupy, may be 1, 2, 4, 8, 10, 12, 14, etc. In some embodiments, the number of symbols occupied by the SRS resource may be configured by a high-level parameter nrofSymbol in the configuration information. In some embodiments, the position of the starting symbol of the SRS resource may be 0, 1, 2, 3, 4, 5, etc. In some embodiments, the position of the starting symbol of the SRS resource may be configured by a high-level parameter startPosition in the configuration information.

[0153] Figure 2 is a schematic diagram of the mapping of SRS resources onto time-frequency domain resources. As shown in Figure 2, three SRS resources are mapped onto the time-frequency domain resources: the first SRS resource, the second SRS resource, and the third SRS resource. The first SRS resource occupies one symbol in the time domain and is the third symbol from the last symbol in the timeslot where the first SRS resource is located. The higher-level parameters nrofSymbol and startPosition associated with the first SRS resource can be 1 and 3, respectively. The second SRS resource occupies four symbols in the time domain and the last symbol of the second SRS resource is the second symbol from the last symbol in the timeslot where the second SRS resource is located. The higher-level parameters nrofSymbol and startPosition associated with the second SRS resource can be 4 and 2, respectively. The third SRS resource occupies two symbols in the time domain and the last symbol of the third SRS resource is the zeroth symbol from the last symbol in the timeslot where the third SRS resource is located. The higher-level parameters nrofSymbol and startPosition associated with the third SRS resource can be 2 and 0, respectively.

[0154] The SRS resources can be arranged in a comb-like manner in the frequency domain. That is to say, the subcarriers occupied by an SRS resource are arranged at equal intervals. Obviously, the subcarriers occupied by an SRS resource are non-continuous. In some embodiments, the arrangement period of the subcarriers occupied by the SRS resources in the frequency domain can be 2, 4, etc. In some embodiments, the arrangement period of the subcarriers occupied by the SRS resources in the frequency domain can be configured by the high-level parameter transmissionComb in the configuration information. In some embodiments, the offset of the subcarriers occupied by the SRS resources in the frequency domain can be 0, 1, 2, 3, etc. In some embodiments, the offset of the subcarriers occupied by the SRS resources in the frequency domain can be configured by the high-level parameter combOffset in the configuration information.

[0155] Continuing with Figure 2, the first SRS resource is arranged in a comb-like pattern in the frequency domain, with an arrangement period of 2, and the offset of the first occupied subcarrier relative to the first subcarrier (lower edge) of the time-frequency resource is 0. The high-level parameters transmissionComb and combOffset related to the first SRS resource can be 2 and 0, respectively. Similarly, the high-level parameters transmissionComb and combOffset related to the second SRS resource can be 2 and 1, respectively, and the high-level parameters transmissionComb and combOffset related to the third SRS resource can be 4 and 0, respectively.

[0156] In some embodiments, the mapping of an 8-port SRS resource (i.e., an SRS resource supporting 8 SRS ports) to time-frequency resources can be performed using either time division multiplexing (TDM) or non-TDM. In some embodiments, whether the 8-port SRS resource uses the TDM method can be configured using the higher-level parameter transmissionComb in the configuration information. In some embodiments, for the non-TDM method, the mapping of the 8-port SRS resource to time-frequency resources can be achieved by arranging different combinations of period, subcarrier offset, and cyclic shift. In one example, the higher-level parameter transmissionComb associated with the 8-port SRS resource can be 2, and different cyclic shifts can be used. In another example, the higher-level parameter transmissionComb associated with the 8-port SRS resource can be 4 or 8, and different subcarrier offsets and cyclic shifts can be used. In some embodiments, for the TDM method, the 8-port SRS resource can occupy multiple symbols. In one example, the 8-port SRS resource can occupy 2 symbols. In this case, the 8 SRS ports corresponding to the 8-port SRS resource can be divided into two SRS port subsets. Each SRS port subset can include 4 SRS ports. For example, a first subset of SRS ports may include ports 0, 1, 4, 5, and a second subset of SRS ports may include ports 2, 3, 6, 7.

[0157] In order to realize uplink transmission based on codebook (for example, physical uplink shared channel (PUSCH)), the SRS resource set configured by the access network device for the terminal can be applicable to uplink transmission based on codebook. The SRS resource set may include one or more SRS resources. After receiving the SRS sent by the terminal through the SRS resource, the access network device may send an SRS resource indication (SRS resource indication, SRI) to the terminal to indicate the selected SRS resource. At the same time, the access network device may determine the precoding matrix and number of transmission layers used by the terminal for actual transmission, and notify the terminal through the transmit precoding matrix indicator (TPMI) and the transmit rank indicator (TRI) respectively. The terminal determines the codebook according to the TPMI and TRI, and precodes the data based on the codebook, and then uses the antenna port corresponding to the SRS resource indicated by the SRI to send the precoded data.

[0158] In some embodiments, a scenario involving multiple transmit receive points (MTRPs) for S-DCI (single downlink control information) can be considered. In an MTRP scenario, a terminal can send PUSCH to multiple transmit receive points (TRPs). In some embodiments, each TRP can be implemented by a network device such as an access network device.

[0159] In some embodiments, the terminal may implement MTRP transmission through one antenna panel. For example, the terminal may have only one antenna panel. For example, the terminal may have multiple antenna panels, but only use one of the antenna panels for MTRP transmission. In this case, the terminal may adopt a time-division multiplexing (TDM) transmission scheme to implement MTRP transmission. In one example, the terminal may use the antenna panel to send different repetitions of the same information on the PUSCH to different TRPs at different transmission occasions (T0). Different transmission occasions may be located at different time domain positions.

[0160] In some embodiments, a terminal may implement MTRP transmission using multiple antenna panels. For example, a terminal may have two antenna panels. In this case, the terminal may use a time-division multiplexing (TDM) transmission scheme to implement STRP transmission. In one example, a terminal may use two antenna panels to send different repetitions of the same information on the PUSCH to different TRPs at different transmission occasions (T0). Different transmission occasions may be located at different time domain locations.

[0161] In some embodiments, the terminal may implement MTRP transmission through multiple antenna panels. In one example, the terminal may have two antenna panels. These two antenna panels may be used to implement MTRP transmission. In one example, the terminal may implement STxMP (simultaneous transmission of multi-panel) through two antenna panels. In this case, the terminal may adopt SDM (spatial-division multiplexing) or SFN (single frequency network) transmission schemes to implement MTRP transmission. In some embodiments, under the SDM transmission scheme, the terminal may send information on different layers of PUSCH to different TRPs on the same time-frequency resources through two antenna panels. In some embodiments, the terminal may send different repetitions of the same information of PUSCH to different TRPs on the same time-frequency resources through two antenna panels.

[0162] In some embodiments, in codebook-based MTRP transmission, the network device may send two TPMI indication fields to the terminal. Of these two TPMI indication fields, one TPMI indication field may indicate both TPMI and TRI, and the other TPMI indication field may indicate only TPMI. This is because the number of layers indicated by the two TPMI indication fields may be exactly the same.

[0163] With the development of communication technology, a terminal may have three transmitting antennas. In this case, the terminal needs to be able to send SRS through a three-port SRS resource.

[0164] Therefore, how to enable a terminal with three transmitting antennas to support MTRP transmission is an urgent problem to be solved.

[0165] Figure 3 is an exemplary interaction diagram of a communication method according to an embodiment of the present disclosure. The embodiment of the present disclosure relates to a communication method, which is applied to a communication system 100. As shown in Figure 3, the communication method includes steps S301 to S304.

[0166] In step S301 , the terminal 101 sends third information to the network device 102 .

[0167] In some embodiments, network device 102 may receive third information.

[0168] In some embodiments, the third information may be used to indicate the capability of the terminal 101 .

[0169] In some embodiments, the third information may be used to indicate functions supported by the terminal 101 .

[0170] In some embodiments, the name of the third information is not limited, and it can be, for example, UE capability, UE capability information, UE capability indication, functional information, etc., and the embodiments of the present disclosure do not make specific limitations on this.

[0171] In some embodiments, the third information may be used to report the terminal 101's ability to support one or more transmission schemes.

[0172] In some embodiments, the third information may include transmission scheme information. The transmission scheme support information may be used to indicate the terminal 101's ability to support one or more transmission schemes.

[0173] In some embodiments, the transmission scheme may include: SDM based on STxMP (Simultaneous Transmission of Multiple Panels), SFN based on STxMP, TDM.

[0174] In some embodiments, the third information may indicate whether terminal 101 supports SDM based on STxMP. In one example, the third information may indicate whether terminal 101 supports SDM based on STxMP. For example, the third information may include one bit, which may be used to indicate whether terminal 101 supports SDM based on STxMP. The value of this bit can be 0 or 1. When the value of this bit is 1, it indicates that terminal 101 supports SDM based on STxMP. When the value of this bit is 1, it indicates that terminal 101 does not support SDM based on STxMP. For example, the third information may include one field, which may be used to indicate whether terminal 101 supports SDM based on STxMP. The value of this field can be SDM or SDM based on STxMP. When this field is present in the third information, it indicates that terminal 101 supports SDM based on STxMP. When this field is absent in the third information, it indicates that terminal 101 does not support SDM based on STxMP.

[0175] In some embodiments, the third information may indicate whether terminal 101 supports STxMP-based SFN. In one example, the third information may indicate whether terminal 101 supports STxMP-based SFN. For example, the third information may include one bit, which may be used to indicate whether terminal 101 supports STxMP-based SFN. The value of this bit can be 0 or 1. When the value of this bit is 1, it indicates that terminal 101 supports STxMP-based SFN. When the value of this bit is 1, it indicates that terminal 101 does not support STxMP-based SFN. For example, the third information may include one field, which may be used to indicate whether terminal 101 supports STxMP-based SFN. The value of this field can be SFN or STxMP-based SFN. When this field is present in the third information, it indicates that terminal 101 supports STxMP-based SFN. When this field is absent in the third information, it indicates that terminal 101 does not support STxMP-based SFN.

[0176] In some embodiments, the third information may indicate whether the terminal 101 supports TDM. In one example, the third information may indicate that the terminal 101 supports TDM. For example, the third information may include one bit, which may be used to indicate whether the terminal 101 supports TDM. The value of this bit may be 0 or 1. When the value of this bit is 1, it indicates that the terminal 101 supports TDM. When the value of this bit is 1, it indicates that the terminal 101 does not support TDM. For example, the third information may include one field, which may be used to indicate whether the terminal 101 supports TDM. The value of this field may be MP TDM. When this field is present in the third information, it indicates that the terminal 101 supports TDM. When this field is not present in the third information, it indicates that the terminal 101 does not support TDM.

[0177] In some embodiments, the third information may indicate the support capability for three transmission schemes, namely, STxMP-based SDM, STxMP-based SFN, and TDM, respectively, through three consecutive bits.

[0178] In some embodiments, the support capabilities of the three transmission schemes, namely, STxMP-based SDM, STxMP-based SFN, and TDM, can be indicated by respective fields in the third information.

[0179] In some embodiments, the third information may indicate that the terminal 101 is a 3-transmit antenna terminal. In some embodiments, the third information may be used to indicate that the terminal 101 has 3 SRS ports.

[0180] In some embodiments, the third information may indicate at least one of the following: the number of antenna panels of the terminal 101, and the number of transmission ports supported by each antenna panel.

[0181] In some embodiments, the third information may indicate that the number of antenna panels of terminal 101 is equal to 1.

[0182] In some embodiments, the third information may indicate that the number of antenna panels of the terminal 101 is equal to 1, and the number of transmission ports supported by the antenna panel is 3.

[0183] In some embodiments, when the number of antenna panels is equal to 1, the third information may indicate that the terminal 101 supports TDM.

[0184] In some embodiments, the third information may indicate that the number of antenna panels of terminal 101 is equal to 2.

[0185] In some embodiments, the third information may indicate that the number of antenna panels of the terminal 101 is equal to 2, and the number of transmission ports supported by each antenna panel is 3.

[0186] In some embodiments, when the number of antenna panels is equal to 2, the third information may indicate that the terminal 101 supports SDM based on STxMP, and / or SFN based on STxMP, and / or TDM.

[0187] In some embodiments, when the number of antenna panels is equal to 1, the third information may indicate that the terminal 101 supports STRP (single transmit receive point).

[0188] In some embodiments, the third information may be carried in a ueCapabilityInformation information element (IE).

[0189] In some embodiments, the third information may be carried in upper layer signaling, for example, signaling in a radio resource control (RRC) process.

[0190] In some embodiments, the third information may be carried in a UE Capability Information message. In one example, the UE Capability Information message may be transmitted during an RRC process. In some embodiments, the UE Capability Information message may be sent by terminal 101 in response to a UE Capability Information Query message from network device 102. In some embodiments, the UE Capability Information message may be proactively sent by terminal 101.

[0191] In some embodiments, network device 102 may not receive capability information.

[0192] In some embodiments, network device 102 may not expect to receive capability information.

[0193] In some embodiments, terminal 101 may not send the third information. In some embodiments, terminal 101 may not indicate to network device 102 the transmission schemes supported by terminal 101. In some embodiments, terminal 101 may support the TDM transmission scheme by default. In some embodiments, terminal 101 may support TDM PUSCH transmission by default.

[0194] In step S302 , the network device 102 sends second information to the terminal 101 .

[0195] In some embodiments, terminal 101 may receive second information.

[0196] In some embodiments, the second information may be used to determine a transmission scheme of terminal 101 .

[0197] In some embodiments, the second information may be used to indicate to the terminal 101 the adopted transmission scheme.

[0198] In some embodiments, the name of the second information is not limited, and it can be, for example, transmission scheme indication information, transmission scheme configuration information, transmission scheme delivery information, etc.

[0199] In some embodiments, the second information may configure a transmission scheme for the terminal 101 in a dynamic, static, or semi-static manner.

[0200] In some embodiments, the second information may be used to indicate to the terminal 101 that one of the following transmission schemes is adopted: SDM based on STxMP, SFN based on STxMP, and TDM.

[0201] In some embodiments, the network device 102 may not send the second information. In this case, the terminal 101 may not receive or expect the second information.

[0202] In some embodiments, the second information may be transmitted in an RRC process. In some embodiments, the second information may be carried in an RRC message.

[0203] In some embodiments, when the second information is not received, the terminal 101 may determine the transmission scheme by default. For example, the terminal 101 may adopt the transmission scheme of STRP by default. For example, the terminal 101 may adopt the transmission scheme of TDM by default.

[0204] In step S303 , the network device 102 sends first information to the terminal 101 .

[0205] In some embodiments, terminal 101 may receive first information.

[0206] In some embodiments, the first information may be used to determine first precoding information.

[0207] In some embodiments, the first precoding information may be used for codebook-based PUSCH transmission under the MTRP configuration of the S-DCI.

[0208] In some embodiments, the first precoding information may indicate a precoding matrix. The precoding matrix may be used for codebook-based PUSCH transmission under the MTRP configuration of the S-DCI.

[0209] In some embodiments, the first information may include at least one of the following: a TPMI indication field and an SRI indication field.

[0210] In some embodiments, the TPMI indication field may be used to indicate first precoding information for codebook-based PUSCH transmission.

[0211] In some embodiments, the TPMI indication field may include at least one of the following: TRI, TPMI.

[0212] In some embodiments, a combination of TPMI and TRI may be used to indicate the first precoding information. In some embodiments, a precoding matrix corresponding to the first precoding information may be determined based on TPMI and TRI.

[0213] In some embodiments, the TPMI indication field may include at least one bit. The at least one bit may be used to indicate an index of the TPMI and / or TRI. The index may be selected from an index table.

[0214] In some embodiments, an index table may be used to indicate possible values ​​of TPMI and / or TRI and corresponding indexes.

[0215] In some embodiments, the index table may be used to represent precoding information and the number of transmission layers. The first precoding information may be a combination of precoding information and a number of transmission layers in the index table, and the combination may have a unique index in the index table.

[0216] In some embodiments, the first information may include at least two TPMI indication fields.

[0217] In some embodiments, the SRI indication field may be used to indicate the amount of resources used for codebook-based PUSCH transmission.

[0218] In some embodiments, the SRI indication field may be used to indicate the number of 3-port SRS resources used for codebook-based PUSCH transmission.

[0219] In some embodiments, a 3-port SRS resource can be implemented based on one of the following SRS resource combinations: one 1-port SRS resource; one 2-port SRS resource; three 1-port SRS resources; two 2-port SRS resources; one 1-port SRS resource and one 2-port SRS resource; one 4-port SRS resource; or one 8-port SRS resource. It should be noted that a 3-port SRS resource can be implemented in other ways, for example, by defining and configuring a 3-port SRS resource in a standard, and this is not specifically limited in the present disclosure.

[0220] In some embodiments, one or more 3-port SRS resources may be configured on the terminal 101. In some embodiments, these 3-port SRS resources may be used to implement PUSCH transmission. In some embodiments, the number of 3-port SRS resources configured on the terminal 101 may be less than or equal to 3.

[0221] In some embodiments, two codebook-based SRS resource sets may be configured on the terminal 101. In some embodiments, both of these two SRS resource sets may be used to implement PUSCH transmission. In one example, PUSCH transmission may be implemented through two codebook-based SRS resource sets. In one example, PUSCH transmission may be implemented through SRS resources of two codebook-based SRS resource sets. In some embodiments, the two codebook-based SRS resource sets may correspond to different TCI states and / or spatial relationships and / or TRPs. In some embodiments, each SRS resource in the two codebook-based SRS resource sets may correspond to a different TCI state and / or spatial relationship and / or TRP.

[0222] In some embodiments, the first information may include two TPMI indication fields, namely, a first TPMI indication field and a second TPMI indication field. The first TPMI indication field may correspond to one of the two SRS resource sets. The second TPMI indication field may correspond to the other of the two SRS resource sets. In some embodiments, the first information may include two SRI indication fields, namely, a first SRI indication field and a second SRI indication field. The first SRI indication field may correspond to one of the two SRS resource sets. The second SRI indication field may correspond to the other of the two SRS resource sets.

[0223] In some embodiments, the first information may include at least two SRI indication fields.

[0224] In some embodiments, multiple TPMI indication fields and / or multiple SRI indication fields may correspond to different TCI (transmission configuration information) states, and / or different spatial relationships, and / or different TRPs.

[0225] In some embodiments, when the PUSCH transmission scheme is STxMP-based SDM, if (the actual scheduling of) PUSCH transmission is MTRP transmission, the maximum number of transmission layers supported by PUSCH transmission may be 2. In some embodiments, each antenna panel of terminal 101 may support a maximum number of transmission layers when performing PUSCH transmission. In other words, the maximum number of transmission layers supported by network device 102 may be 2.

[0226] In some embodiments, for 3 antenna ports, the transform and encoder are disabled, the maximum number of transmission layers is equal to 2, and ul-FullPowerTransmission is not configured or configured as fullpower, the index table can be as shown in Table 1 below:

[0227] Table 1: Precoding information and number of layers

[0228] In some embodiments, when the PUSCH transmission scheme is STxMP-based SDM, if (the actual scheduling of) PUSCH transmission is STRP transmission, the maximum number of transmission layers supported by PUSCH transmission may be 2 or 3. In some embodiments, each antenna panel of terminal 101 may support a maximum number of transmission layers when performing PUSCH transmission. In other words, the maximum number of transmission layers supported by network device 102 may be 2 or 3.

[0229] In some embodiments, for 3 antenna ports, the transform precoder is disabled, the maximum number of transmission layers is equal to 2 or 3, and ul-FullPowerTransmission is not configured or configured as fullpower, the index table can be as shown in Table 2 below:

[0230] Table 2: Precoding information and number of layers

[0231] In some embodiments, multiple TPMI indication fields in the first information may correspond to the same index table. In one example, the multiple TPMI indication fields in the first information may correspond to the index table shown in Table 1. For example, the first TPMI indication field and the second TPMI indication field may both correspond to the index table shown in Table 1. In one example, the multiple TPMI indication fields in the first information may correspond to the index table shown in Table 2. For example, the first TPMI indication field and the second TPMI indication field may both correspond to the index table shown in Table 2.

[0232] In some embodiments, the bit width of the multiple TPMI indication fields in the first information may be 3. In one example, the index of each TPMI indication field may range from 0 to 7. Then, the index in each TPMI indication field may be represented by 3 bits.

[0233] In some embodiments, in the MTRP transmission mode, supported combinations of transmission layer numbers include: {1+1}, {1+2}, and {1+3}.

[0234] In some embodiments, in a transmission block (TB), different transmission layers of the PUSCH may correspond to different TCI states, and / or TRPs, and / or spatial relationships, and / or beams.

[0235] In some embodiments, when the transmission scheme for PUSCH transmission is SFN based on STxMP or TDM, the maximum number of transmission layers supported by PUSCH transmission may be 2 or 3. In some embodiments, when the transmission scheme for PUSCH transmission is SFN based on STxMP or TDM, the maximum number of transmission layers supported by network device 102 may be 2 or 3.

[0236] In some embodiments, for 3 antenna ports, the transform precoder is disabled, the maximum number of transmission layers is equal to 2 or 3, and ul-FullPowerTransmission is not configured or is configured as fullpower, the index table can be as shown in Table 3 below:

[0237] Table 3: Precoding information and number of layers

[0238] In some embodiments, for 3 antenna ports, the transform precoder is disabled, the maximum number of transmission layers is equal to 2 or 3, and ul-FullPowerTransmission is not configured or configured as fullpower, the index table can be as shown in Table 4 below:

[0239] Table 4: Precoding information and number of layers

[0240] In some embodiments, for the case of one layer, Table 4 may be equivalent to the following Table 5:

[0241] Table 5: Precoding information and number of layers (1 layer)

[0242] In some embodiments, for the case of 2 layers, Table 4 may be equivalent to the following Table 6:

[0243] Table 6: Precoding information and number of layers (2 layers)

[0244] In some embodiments, for the case of three layers, Table 4 may be equivalent to the following Table 7:

[0245] Table 7: Precoding information and number of layers (3 layers)

[0246] In some embodiments, multiple TPMI indication fields in the first information may correspond to different index tables.

[0247] In some embodiments, the first TPMI indication field may correspond to Table 3. In this case, the TPMI indication field may indicate both TRI and TPMI. For example, the index in the TPMI indication field may be used to simultaneously determine TRI and TPMI.

[0248] In some embodiments, the second TPMI indication field may correspond to Table 4, Table 5, Table 6, or Table 7. In some embodiments, the number of transport layers corresponding to the first TPMI indication field and the second TPMI indication field may be the same. That is, the first TPMI indication field and the second TPMI indication field may correspond to the same TRI. In this case, the number of transport layers corresponding to the second TPMI indication field may be obtained based on the first TPMI indication field. In this case, the second TPMI indication field may only indicate the TPMI.

[0249] In some embodiments, for example, the first TPMI indication field may indicate an index of 3, and the second TPMI indication field may indicate an index of 1. Thus, according to Table 3, the first TPMI indication field may indicate that the number of transport layers is 2 and the TPMI is 0. For the case where the number of transport layers is 2, according to the corresponding Table 6, the first TPMI indication field may indicate that the TPMI is 1.

[0250] In some embodiments, the bit widths of the multiple TPMI indicator fields in the first information may be different. In one example, the index of the first TPMI indicator field may range from 0 to 7. Therefore, the index in the first TPMI indicator field may be represented by 3 bits. In one example, the index of the second TPMI indicator field may range from 0 to 3. Therefore, the index in the second TPMI indicator field may be represented by 2 bits.

[0251] In some embodiments, the first information may be carried in DCI signaling. In some embodiments, the network device 102 may send DCI signaling to the terminal 101, and the DCI signaling may include the first information.

[0252] In some embodiments, the DCI signaling may further include an SRS resource set indicator. In some embodiments, the SRS resource set indicator may be carried in an SRS resource set indicator indication field.

[0253] In some embodiments, DCI may be used to schedule PUSCH transmission as MTRP transmission or STRP transmission.

[0254] In some embodiments, the PUSCH transmission is an MTRP transmission or a STRP transmission, which may be indicated by a codepoint value.

[0255] In some embodiments, a code point may be included in the SRS resource set indicator indication field.

[0256] In some embodiments, the first code point value may be used to indicate that the PUSCH transmission is an MTRP transmission. In some embodiments, the first code point value may be "00" or "01".

[0257] In some embodiments, the second code point value may be used to indicate that the PUSCH transmission is a STRP transmission. In some embodiments, the second code point value may be "10". In some embodiments, the terminal 101 may support TDM PUSCH transmission by default. In other words, the terminal may support TDM PUSCH transmission by default. In some embodiments, the terminal 101 may support only TDM PUSCH transmission by default. In this case, the terminal 101 may not send the third information to report the terminal capabilities, and the network device 102 may not send the second information to indicate the transmission scheme.

[0258] In step S304 , the terminal 101 sends a PUSCH to the network device 102 .

[0259] In some embodiments, network device 102 may receive the PUSCH.

[0260] In some embodiments, the terminal 101 may send the PUSCH according to the first information based on the PUSCH transmission scheme.

[0261] In some embodiments, the terminal 101 may determine first precoding information based on the first information, and transmit the PUSCH based on the first precoding information.

[0262] In some embodiments, in MTRP transmission, terminal 101 can send PUSCH to multiple TRPs.

[0263] In some embodiments, in a STRP transmission, the terminal 101 may send a PUSCH to a TRP.

[0264] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0265] In some embodiments, the terms "codebook," "codeword," and "precoding matrix" may be used interchangeably. For example, a codebook may be a collection of one or more codewords / precoding matrices.

[0266] In some embodiments, terms such as "uplink", "uplink", "physical uplink" can be interchangeable with each other, and terms such as "downlink", "downlink", "physical downlink" can be interchangeable with each other, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" can be interchangeable with each other.

[0267] In some embodiments, the terms "DCI", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI" and the like may be used interchangeably.

[0268] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" may be used interchangeably, and terms such as "PUSCH" and "UL data" may be used interchangeably.

[0269] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

[0270] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0271] In some embodiments, terms such as "resource block (RB)", "physical resource block (PRB)", "sub-carrier group (SCG)", "resource element group (REG)", "PRB pair", "RB pair", "resource element (RE)", and "sub-carrier" can be used interchangeably.

[0272] In some embodiments, the terms "precoding", "precoder", "weight", "precoding weight", "quasi-co-location (QCL)", "transmission configuration indication (TCI) state", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "the number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angular degree", "antenna", "antenna element", "panel" and the like can be used interchangeably.

[0273] In some embodiments, terms such as "frame", "radio frame", "subframe", "slot", "sub-slot", "mini-slot", "symbol", "symbol", and "transmission time interval (TTI)" can be used interchangeably.

[0274] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0275] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0276] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "some", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "some A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, some A, any A, or first A, etc., but not limited to this.

[0277] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0278] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the recipient to respond to the content sent.

[0279] It should be noted that, in the embodiments of the present disclosure, “3-port SRS resources” may also be referred to as “equivalent 3-port SRS resources”, or may have other names.

[0280] The communication method involved in the embodiment of the present disclosure may include at least one of steps S301 to S304. For example, step S303 may be implemented as an independent embodiment, but is not limited thereto.

[0281] In some embodiments, steps S302 and S303 may be executed in an interchangeable order or simultaneously.

[0282] In some embodiments, steps S301 , S302 , and S304 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0283] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 .

[0284] FIG4 is an exemplary flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4 , an embodiment of the present disclosure relates to a communication method. The communication method in this embodiment can be executed by terminal 101. The communication method includes steps S401 to S404.

[0285] In step S401, the third information is sent.

[0286] The optional implementation of step S401 can refer to the optional implementation of step S301 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0287] In some embodiments, the terminal 101 may send the third information to the network device 102, but is not limited thereto and may also send the PUSCH to other entities.

[0288] In step S402, second information is obtained.

[0289] The optional implementation of step S402 can refer to the optional implementation of step S302 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0290] In some embodiments, the terminal 101 may receive the second information sent by the network device 102, but is not limited thereto and may also receive the second information sent by other entities.

[0291] In some embodiments, terminal 101 may obtain second information specified by the protocol.

[0292] In some embodiments, the terminal 101 may obtain the second information through a higher layer.

[0293] In some embodiments, the terminal 101 may perform processing to obtain the second information.

[0294] In some embodiments, step S402 may be omitted, and the terminal 101 may autonomously implement the function indicated by the first information, or the above function may be default or acquiescent.

[0295] In step S403, first information is obtained.

[0296] The optional implementation of step S403 can refer to the optional implementation of step S303 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0297] In some embodiments, the terminal 101 may receive the first information sent by the network device 102, but is not limited thereto and may also receive the first information sent by other entities.

[0298] In step S404, a PUSCH is transmitted.

[0299] The optional implementation of step S404 can refer to the optional implementation of step S304 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0300] In some embodiments, the terminal 101 may send a PUSCH to the network device 102 , but is not limited thereto and may also send a PUSCH to other entities.

[0301] The communication method involved in the embodiment of the present disclosure may include at least one of steps S401 to S404. For example, step S403 may be implemented as an independent embodiment, but is not limited thereto.

[0302] In some embodiments, steps S402 and S403 may be performed in an interchangeable order or simultaneously.

[0303] In some embodiments, steps S401 , S402 , and S404 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0304] FIG5 is an exemplary flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG5 , an embodiment of the present disclosure relates to a communication method. The communication method in this embodiment can be executed by network device 102. The communication method includes steps S501 to S504.

[0305] In step S501, third information is obtained.

[0306] The optional implementation of step S501 can refer to the optional implementation of step S301 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0307] In some embodiments, the network device 102 may receive the third information sent by the terminal 101, but is not limited thereto and may also receive the third information sent by other entities.

[0308] In some embodiments, the network device 102 may obtain the third information through a higher layer.

[0309] In step S502, the second information is sent.

[0310] The optional implementation of step S502 can refer to the optional implementation of step S302 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0311] In some embodiments, the network device 102 may send the second information to the terminal 101 , but is not limited thereto and may also send the second information to other entities.

[0312] In step S503, the first information is sent.

[0313] The optional implementation of step S503 can refer to the optional implementation of step S303 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0314] In some embodiments, the network device 102 may send the first information to the terminal 101, but is not limited thereto and may also send the first information to other entities.

[0315] In step S504, PUSCH is acquired.

[0316] The optional implementation of step S504 can refer to the optional implementation of step S304 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0317] In some embodiments, the network device 102 may receive a PUSCH sent by the terminal 101, but is not limited thereto and may also receive a PUSCH sent by other entities.

[0318] The communication method involved in the embodiment of the present disclosure may include at least one of steps S501 to S504. For example, step S503 may be implemented as an independent embodiment, but is not limited thereto.

[0319] In some embodiments, steps S502 and S503 may be executed in an interchangeable order or simultaneously.

[0320] In some embodiments, steps S501 , S502 , and S504 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0321] FIG6 is an exemplary flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG6 , an embodiment of the present disclosure relates to a communication method. The communication method includes step S601.

[0322] In step S601 , the network device 102 sends first information to the terminal 101 .

[0323] The optional implementation of step S601 can refer to the optional implementation of step S301 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0324] In the following, the technical solutions of the embodiments of the present disclosure are exemplarily described through specific implementation methods.

[0325] In some embodiments, considering that each panel supports 3-port PUSCH transmission, the terminal may support single-panel or multi-panel transmission, that is, support one of the following: TDM transmission, STxMP SDM transmission, and STxMP SFN transmission.

[0326] In some embodiments, the specific transmission scheme can be configured through RRC as one of TDM, SDM, and SFN.

[0327] In some embodiments, when the transmission scheme is STxMP SDM, the combinations of transmission layers supported by MTRP may be {1+1}, {1+2}, or {2+1}.

[0328] In some embodiments, the maximum number of levels (maxRank) of the STRP configuration can be 2 or 3.

[0329] In some embodiments, the TPMI table (i.e., index table) for STRP configuration is as follows:

[0330] Table 8

[0331] In some embodiments, the maximum number of layers for MTRP configuration is maxRank_sdm=2;

[0332] In some embodiments, the TPMI table for MTRP configuration is as follows:

[0333] Table 9

[0334] In some embodiments, the maximum number of tiers (maxRank_sdm) configured for MTRP may be 2.

[0335] In some embodiments, when the transmission scheme is STxMP SFN, the corresponding configured maximum number of layers (maxRank_sfn) may be 2 or 3.

[0336] In some embodiments, a first TPMI indication field may be defined to indicate TPMI and TRI, and the number of bits thereof is 3 bits; a second TPMI indication field may be defined to indicate TPMI, and the number of bits thereof is 2 bits.

[0337] In some embodiments, the number of bits of the first TPMI indication field may be defined as 3 bits, and the number of bits of the second TPMI indication field may be defined as 2 bits. The corresponding TPMI table may adopt the following definition.

[0338] Table 10: Precoding Information and Number of Layers (for 3 antenna ports, transform precoder disabled, maximum number of transmission layers 2 or 3, and ul-FullPowerTransmission not configured or configured as fullpower)

[0339] Table 11: Second precoding information and number of layers (for 3 antenna ports, transform precoder disabled, maximum number of transmission layers is 2 or 3, and ul-FullPowerTransmission is not configured or is configured as fullpower)

[0340] In some embodiments, Table 11 can be equivalent to the following three tables according to the number of transmission layers, namely Table 12A, Table 12B, and Table 12C.

[0341] Table 12A: Second precoding information and number of layers (for 3 antenna ports, transform precoder disabled, maximum number of transmission layers is 2 or 3, and ul-FullPowerTransmission is not configured or is configured as fullpower)

[0342] Table 12B: Second precoding information and number of layers (for 3 antenna ports, transform precoder disabled, maximum number of transmission layers is 2 or 3, and ul-FullPowerTransmission is not configured or is configured as fullpower)

[0343] Table 12C: Second precoding information and number of layers (for 3 antenna ports, transform precoder disabled, maximum number of transmission layers is 2 or 3, and ul-FullPowerTransmission is not configured or is configured as fullpower)

[0344] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0345] The present disclosure also provides a communication device for implementing any of the above methods. For example, the present disclosure provides a communication device including units or modules for implementing each step performed by a network device in any of the above methods. For example, the present disclosure provides a communication device including units or modules for implementing each step performed by a terminal in any of the above methods.

[0346] It should be understood that the division of the various units or modules in the above devices 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 devices, 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.

[0347] 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, 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 a dedicated integrated circuit or a programmable logic device, 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.

[0348] FIG7 is a schematic diagram of the structure of a communication device according to an embodiment of the present disclosure. As shown in FIG7 , a communication device 700 may include a transceiver module 701 .

[0349] In a first aspect, the communication device 700 may be a terminal 101. In some embodiments, the transceiver module 701 may be configured to: receive first information, wherein the first information is used to determine first precoding information, the first precoding information being used for codebook-based PUSCH transmission under the MTRP configuration of the S-DCI; wherein the first information includes at least two TPMI indication fields; wherein different TPMI indication fields in the at least two TPMI indication fields correspond to different TCI states and / or spatial relationships and / or transmission reception points (TRPs); and wherein the terminal is a three-transmit antenna terminal. Optionally, the transceiver module 701 may be configured to perform at least one of the communication steps (e.g., steps S301, S302, S303, and S304) such as sending and / or receiving performed by the terminal 101 in any of the above methods, which are not further described herein.

[0350] In a second aspect, the communication apparatus 700 may be a network device 102. In some embodiments, the transceiver module 701 may be configured to: transmit first information, wherein the first information is used to determine first precoding information, the first precoding information being used for codebook-based PUSCH transmission under the MTRP configuration of the S-DCI; wherein the first information includes at least two TPMI indication fields; in the at least two TPMI indication fields, different TPMI indication fields correspond to different TCI states and / or spatial relationships and / or transmission reception points (TRPs); wherein the terminal is a 3-transmitting antenna terminal. Optionally, the transceiver module 701 may be configured to perform at least one of the communication steps (e.g., steps S301, S302, S303, and S304) such as transmitting and / or receiving performed by the network device 102 in any of the above methods, which will not be described in detail here.

[0351] In some embodiments, the transceiver module 701 may include a transmitting module and / or a receiving module. The transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0352] In some embodiments, the processing module 702 can be a single module or include multiple submodules. Optionally, the multiple submodules each execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0353] Figure 8A is a schematic diagram of the structure of a communication device provided according to an embodiment of the present disclosure. Communication device 8100 can be a network device, a terminal, or a chip, chip system, or processor that supports a network device in implementing any of the above methods. It can also be a chip, chip system, or processor that supports a terminal in implementing any of the above methods. Communication device 8100 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.

[0354] As shown in Figure 8A, the communication device 8100 includes one or more processors 8101. The processor 8101 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 the communication protocol 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. Optionally, the communication device 8100 is used to perform any of the above methods. Optionally, one or more processors 8101 are used to call instructions to enable the communication device 8100 to perform any of the above methods.

[0355] In some embodiments, the communication device 8100 further includes one or more transceivers 8102. When the communication device 8100 includes one or more transceivers 8102, the transceiver 8102 performs at least one of the communication steps of sending and / or receiving in the above method (for example, steps S301, S302, S303, and S304, but not limited thereto). In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be interchangeable, the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be interchangeable, and the terms receiver, receiving unit, receiver, and receiving circuit may be interchangeable.

[0356] In some embodiments, the communication device 8100 further includes one or more memories 8103 for storing data. Alternatively, all or part of the memories 8103 may be located outside the communication device 8100. In alternative embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuits 8104 are connected to the memories 8103 and may be configured to receive data from the memories 8103 or other devices, or to send data to the memories 8103 or other devices. For example, the interface circuits 8104 may read data stored in the memories 8103 and send the data to the processor 8101.

[0357] The communication device 8100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 8A. 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.

[0358] FIG8B is a schematic diagram of the structure of a chip provided according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG8B , but the present invention is not limited thereto.

[0359] The chip 8200 includes one or more processors 8201. The chip 8200 is configured to execute any of the above methods.

[0360] In some embodiments, chip 8200 further includes one or more interface circuits 8202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 8200 further includes one or more memories 8203 for storing data. Alternatively, all or part of memory 8203 may be located external to chip 8200. Optionally, interface circuit 8202 is connected to memory 8203 and may be used to receive data from memory 8203 or other devices, or may be used to send data to memory 8203 or other devices. For example, interface circuit 8202 may read data stored in memory 8203 and send the data to processor 8201.

[0361] In some embodiments, the interface circuit 8202 performs at least one of the communication steps of sending and / or receiving in the above method (e.g., steps S301, S302, S303, and S304, but not limited thereto). The interface circuit 8202 performing the communication steps of sending and / or receiving in the above method, for example, means that the interface circuit 8202 performs data exchange between the processor 8201, the chip 8200, the memory 8203, or the transceiver device.

[0362] The modules and / or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0363] The embodiments of the present disclosure further provide a storage medium having instructions stored thereon. When the instructions are executed on the communication device 8100, the communication device 8100 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.

[0364] The embodiment of the present disclosure further provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0365] The embodiments of the present disclosure further provide a computer program, which, when executed on a computer, enables the computer to execute any of the above methods.

[0366] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow from the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0367] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A communication method, performed by a terminal, wherein: The method comprises: receiving first information, wherein the first information is used to determine first precoding information, where the first precoding information is used for codebook-based physical uplink shared channel (PUSCH) transmission in a multiple transmission reception point (MTRP) configuration of single downlink control information (S-DCI); The first information includes at least two transmission precoding matrix indicator TPMI indication fields; Among them, in the at least two TPMI indication fields, different TPMI indication fields correspond to different transmission configuration indication TCI states and / or spatial relationships and / or transmission reception points TRP; The terminal is a terminal with three transmitting antennas.

2. The method according to claim 1, wherein The PUSCH transmission is implemented through SRS resources of two codebook-based SRS resource sets, and each of the two SRS resource sets corresponds to a different TCI state and / or spatial relationship and / or TRP.

3. The method according to claim 1 or 2, wherein: The PUSCH transmission is implemented through 3-port SRS resources, the number of the 3-port SRS resources is less than or equal to 3, and the 3-port SRS resources are used to obtain uplink channel state information CSI through 3 SRS ports.

4. The method according to claim 3, wherein: The 3-port SRS resource is implemented based on one of the following SRS resource combinations: 1 1-port SRS resource; 1 2-port SRS resource; 3 1-port SRS resources; 2 2-port SRS resources; One 1-port SRS resource and one 2-port SRS resource; 1 4-port SRS resource; One 8-port SRS resource.

5. The method according to any one of claims 1 to 4, wherein Each of the at least two TPMI indication fields is used to indicate at least one of the following: Transmission rank indicator TRI; TPMI.

6. The method according to any one of claims 1 to 5, wherein The PUSCH transmission is based on spatial division multiplexing (SDM) transmission of multiple panels simultaneously.

7. The method according to claim 6, wherein: The PUSCH transmission is MTRP transmission, and the maximum number of transmission layers supported by the PUSCH transmission is 2.

8. The method according to claim 7, wherein: The MTRP transmission is indicated by the first code point value in the SRS resource set indicator.

9. The method according to claim 6, wherein: The PUSCH transmission is a single transmission reception point STRP transmission, and the maximum number of transmission layers supported by the PUSCH transmission is 2 or 3.

10. The method according to claim 9, wherein: The STRP transmission is indicated by a second code point value in the SRS resource set indicator.

11. The method according to any one of claims 6 to 10, wherein The at least two TPMI indication fields correspond to the same index table.

12. The method according to any one of claims 6 to 11, wherein The bit widths of the at least two TPMI indication fields are both 3.

13. The method according to any one of claims 1 to 5, wherein The PUSCH transmission is one of the following transmissions: time division multiplexing TDM based on MTRP, and single frequency network SFN based on multi-panel simultaneous transmission.

14. The method according to claim 13, wherein The maximum number of transmission layers supported by the PUSCH transmission is 2 or 3.

15. The method according to claim 13 or 14, wherein: The at least two TPMI indication fields of the first information correspond to different index tables respectively.

16. The method according to any one of claims 13 to 15, wherein The bit width of the first TPMI indication field of the at least two TPMI indication fields of the first information is 3, and the bit width of the second TPMI indication field is 2.

17. The method according to any one of claims 13 to 16, wherein Of the at least two TPMI indication fields of the first information, a first TPMI indication field indicates TRI and TPMI, and a second TPMI indication field indicates only TPMI; The at least two TPMI indicator fields correspond to the same TRI.

18. The method according to any one of claims 1 to 17, wherein The method further comprises: receiving second information, wherein the second information is used to determine a transmission scheme of the terminal; The transmission scheme includes at least one of the following: SDM based on simultaneous transmission of multiple panels, SFN based on simultaneous transmission of multiple panels, and TDM based on MTRP.

19. The method according to any one of claims 1 to 18, wherein The method further comprises: Sending third information, wherein the third information is used to report the terminal's support capability for at least one of the following transmission schemes: SDM based on simultaneous transmission of multiple panels, SFN based on simultaneous transmission of multiple panels, and TDM based on MTRP.

20. The method according to any one of claims 1 to 19, wherein By default, the terminal only supports TDM PUSCH transmission.

21. A communication method, performed by a network device, wherein: The method comprises: Sending first information to the terminal, where the first information is used to determine first precoding information, where the first precoding information is used for codebook-based physical uplink shared channel (PUSCH) transmission under a multiple transmission reception point (MTRP) configuration of single downlink control information (S-DCI); The first information includes at least two transmission precoding matrix indicator TPMI indication fields; Among them, in the at least two TPMI indication fields, different TPMI indication fields correspond to different transmission configuration indication TCI states and / or spatial relationships and / or transmission reception points TRP; The terminal is a terminal with three transmitting antennas.

22. The method according to claim 21, wherein The PUSCH transmission is implemented through SRS resources of two codebook-based SRS resource sets, and each of the two SRS resource sets corresponds to a different TCI state and / or spatial relationship and / or TRP.

23. The method according to claim 21 or 22, wherein The PUSCH transmission is implemented through 3-port SRS resources, the number of the 3-port SRS resources is less than or equal to 3, and the 3-port SRS resources are used to obtain uplink channel state information CSI through 3 SRS ports.

24. The method according to claim 23, wherein The 3-port SRS resource is implemented based on one of the following SRS resource combinations: 1 1-port SRS resource; 1 2-port SRS resource; 3 1-port SRS resources; 2 2-port SRS resources; One 1-port SRS resource and one 2-port SRS resource; 1 4-port SRS resource; One 8-port SRS resource.

25. The method according to any one of claims 21 to 24, wherein Each of the at least two TPMI indication fields is used to indicate at least one of the following: Transmission rank indicator TRI; TPMI.

26. The method according to any one of claims 21 to 25, wherein The PUSCH transmission is based on spatial division multiplexing (SDM) transmission of multiple panels simultaneously.

27. The method according to claim 26, wherein The PUSCH transmission is MTRP transmission, and the maximum number of transmission layers supported for the PUSCH transmission is 2.

28. The method according to claim 27, wherein The MTRP transmission is indicated by the first code point value in the SRS resource set indicator.

29. The method according to claim 26, wherein The PUSCH transmission is a single transmission reception point STRP transmission, and the maximum number of transmission layers supported by the PUSCH transmission configuration is 2 or 3.

30. The method according to claim 29, wherein The STRP transmission is indicated by a second code point value in the SRS resource set indicator.

31. The method according to any one of claims 26 to 30, wherein The at least two TPMI indication fields correspond to the same index table.

32. The method according to any one of claims 26 to 31, wherein The bit widths of the at least two TPMI indication fields are both 3.

33. The method according to any one of claims 21 to 25, wherein The PUSCH transmission is one of the following transmissions: time division multiplexing (TDM) based on MTRP, and single frequency network (SFN) based on multi-panel simultaneous transmission.

34. The method according to claim 33, wherein The maximum number of layer transmissions supported for the PUSCH transmission configuration is 2 or 3.

35. The method according to claim 33 or 34, wherein The at least two TPMI indication fields of the first information correspond to different index tables respectively.

36. The method according to any one of claims 33 to 35, wherein The bit width of the first TPMI indication field of the at least two TPMI indication fields of the first information is 3, and the bit width of the second TPMI indication field is 2.

37. The method according to any one of claims 33 to 36, wherein The first TPMI indication field of the at least two TPMI indication fields in the first information indicates TRI and TPMI, and the second TPMI indication field only indicates TPMI; The at least two TPMI indicator fields correspond to the same TRI.

38. The method according to any one of claims 21 to 37, wherein The method further comprises: sending second information, wherein the second information is used to determine a transmission scheme of the terminal; The transmission scheme includes at least one of the following: SDM based on simultaneous transmission of multiple panels, SFN based on simultaneous transmission of multiple panels, and TDM based on MTRP.

39. The method according to any one of claims 21 to 38, wherein The method further comprises: Receive third information, wherein the third information is used to report the terminal's support capability for at least one of the following transmission schemes: SDM based on simultaneous transmission of multiple panels, SFN based on simultaneous transmission of multiple panels, and TDM based on MTRP.

40. The method according to any one of claims 21 to 39, wherein By default, the terminal only supports TDM PUSCH transmission.

41. A terminal comprising: a transceiver module configured to receive first information, wherein the first information is used to determine first precoding information, and the first precoding information is used for codebook-based physical uplink shared channel (PUSCH) transmission in a multiple transmission reception point (MTRP) configuration of single downlink control information (S-DCI); The first information includes at least two transmission precoding matrix indicator TPMI indication fields; Among them, in the at least two TPMI indication fields, different TPMI indication fields correspond to different transmission configuration indication TCI states and / or spatial relationships and / or transmission reception points TRP; The terminal is a terminal with three transmitting antennas.

42. A network device comprising: a transceiver module configured to send first information to a terminal, wherein the first information is used to determine first precoding information, and the first precoding information is used for codebook-based physical uplink shared channel (PUSCH) transmission under a multiple transmission reception point (MTRP) configuration of single downlink control information (S-DCI); The first information includes at least two transmission precoding matrix indicator TPMI indication fields; Among them, in the at least two TPMI indication fields, different TPMI indication fields correspond to different transmission configuration indication TCI states and / or spatial relationships and / or transmission reception points TRP; The terminal is a terminal with three transmitting antennas.

43. A communication device comprising: at least one processor; An instruction memory is stored; When the instruction is executed by the communication device, the communication device implements the communication method according to any one of claims 1 to 20.

44. A communication device comprising: at least one processor; An instruction memory is stored; When the instruction is executed by the communication device, the communication device implements the communication method according to any one of claims 21 to 40.

45. A communication system comprising: A terminal configured to implement the communication method according to any one of claims 1 to 20; A network device configured to implement the communication method according to any one of claims 21 to 40.

46. ​​A storage medium storing instructions, wherein: When the instruction is executed on a communication device, the communication device is enabled to implement the communication method according to any one of claims 1 to 40.

47. A computer program product comprising instructions, wherein: When the instruction is executed on a communication device, the communication device is enabled to implement the communication method according to any one of claims 1 to 40.

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