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

Abstract

The present disclosure provides a communication method, apparatus and device, and a storage medium. The method comprises: a terminal transmitting first information on the basis of the number of antenna port groups, wherein the first information is used for indicating at least one first transmit precoding matrix indicator (TPMI), or the first information is used for indicating at least one first TPMI group, one TPMI group comprises at least two TPMIs, the number of activated antenna ports corresponding to different TPMIs in the same TPMI group are the same, and a first TPMI and the first TPMI group are used for enabling the terminal to transmit an uplink channel and / or an uplink signal at full power; the terminal receiving second information, wherein the second information is used for indicating a target TPMI, and the target TPMI is determined on the basis of the first information; and, on the basis of the target TPMI, transmitting an uplink channel and / or an uplink signal at full power. According to the method of the present disclosure, transmission can be implemented at full power, thereby improving transmission performance.

Description

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

[0001] The present disclosure relates to the field of communication technologies, and in particular to communication methods and devices, communication equipment, communication systems, and storage media. Background Art

[0002] Due to codebook limitations and Physical Uplink Shared Channel (PUSCH) power control, if the number of antenna ports activated for codebook-based PUSCH transmission is less than the total number of terminal antenna ports, the terminal cannot transmit uplink channels and / or uplink signals at full power.

[0003] Summary of the Invention

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

[0005] According to a first aspect of an embodiment of the present disclosure, a communication method is proposed, including: a terminal sends first information based on the number of antenna port groups, the first information being used to indicate at least one first transmission precoding matrix indicating TPMI, or the first information being used to indicate at least one first TPMI group, wherein a TPMI group includes at least two TPMIs, and different TPMIs in the same TPMI group correspond to the same number of activated antenna ports; the first TPMI and the first TPMI group are used to enable the terminal to send an uplink channel and / or an uplink signal at full power; the terminal receives second information, the second information being used to indicate a target TPMI, the target TPMI being determined based on the first information; and the uplink channel and / or the uplink signal are sent at full power based on the target TPMI.

[0006] According to a second aspect of an embodiment of the present disclosure, a communication method is proposed, including: a network device receives first information sent by a terminal, the first information is used to indicate at least one first TPMI, or the first information is used to indicate at least one first TPMI group, wherein a TPMI group includes at least two TPMIs, and different TPMIs in the same TPMI group correspond to the same number of activated antenna ports; the first TPMI and the first TPMI group are used to enable the terminal to send an uplink channel and / or an uplink signal at full power; the network device sends second information to the terminal, the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information; the network device receives the uplink channel and / or uplink signal sent by the terminal based on the target TPMI.

[0007] According to a third aspect of an embodiment of the present disclosure, a communication method is proposed for a communication system, the communication system including a terminal and a network device, the method including at least one of the following: the terminal sends first information based on the number of antenna port groups, the first information is used to indicate at least one first transmission precoding matrix indication TPMI, or the first information is used to indicate at least one first TPMI group, wherein a TPMI group includes at least two TPMIs, and different TPMIs in the same TPMI group correspond to the same number of activated antenna ports; the first TPMI and the first TPMI group are used to enable the terminal to send uplink channels and / or uplink signals at full power; the network device receives the first information; the network device sends second information, the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information; the terminal receives the second information; and the uplink channel and / or uplink signal are sent at full power based on the target TPMI.

[0008] According to a fourth aspect of an embodiment of the present disclosure, a terminal is proposed, including: a sending module, configured to send first information based on the number of antenna port groups, the first information being used to indicate at least one first transmission precoding matrix indicating TPMI, or the first information being used to indicate at least one first TPMI group, wherein a TPMI group includes at least two TPMIs, and different TPMIs in the same TPMI group correspond to the same number of activated antenna ports; the first TPMI and the first TPMI group are used to enable the terminal to send uplink channels and / or uplink signals at full power; a receiving module, configured to receive second information, the second information being used to indicate a target TPMI, the target TPMI being determined based on the first information; the sending module is further configured to send uplink channels and / or uplink signals at full power based on the target TPMI.

[0009] According to a fifth aspect of an embodiment of the present disclosure, a network device is provided, including:

[0010] A receiving module is configured to receive first information sent by a terminal, where the first information is used to indicate at least one first TPMI, or the first information is used to indicate at least one first TPMI group, wherein a TPMI group includes at least two TPMIs, and different TPMIs in the same TPMI group correspond to the same number of activated antenna ports; the first TPMI and the first TPMI group are used to enable the terminal to send an uplink channel and / or an uplink signal at full power; a sending module is configured to send second information to the terminal, where the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information; and a receiving module is configured to receive an uplink channel and / or an uplink signal sent by the terminal based on the target TPMI.

[0011] According to a sixth aspect of an embodiment of the present disclosure, a communication device is provided, including:

[0012] One or more processors; wherein the processor is used to call instructions to enable the communication device to execute the communication method described in any one of the first aspect and the second aspect.

[0013] According to the seventh aspect of an embodiment of the present disclosure, a communication system is proposed, characterized in that it includes a terminal and a network device, wherein the terminal is configured to implement the communication method described in the first aspect, and the network device is configured to implement the communication method described in the second aspect.

[0014] According to an eighth aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions, and is characterized in that when the instructions are executed on a communication device, the communication device executes the communication method as described in any one of the first and second aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0016] FIG1 is a schematic diagram of the architecture of some communication systems provided by embodiments of the present disclosure;

[0017] 2A-2E are interactive diagrams of a communication method provided by an embodiment of the present disclosure;

[0018] 3A-3E are flowcharts of a communication method provided in yet another embodiment of the present disclosure;

[0019] 4A-4E are flowcharts of a communication method provided in yet another embodiment of the present disclosure;

[0020] FIG5 is a flow chart of a communication method provided in yet another embodiment of the present disclosure;

[0021] FIG6A is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure;

[0022] FIG6B is a schematic diagram of the structure of a network device provided by an embodiment of the present disclosure;

[0023] FIG7A is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

[0024] FIG7B is a schematic structural diagram of a chip provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0025] The embodiments of the present disclosure provide a communication method and apparatus, a communication device, a communication system, and a storage medium.

[0026] In a first aspect, an embodiment of the present disclosure provides a communication method, which is executed by a terminal. The method includes:

[0027] The terminal sends first information based on the number of antenna port groups, where the first information is used to indicate at least one first transmission precoding matrix indicating TPMI, or the first information is used to indicate at least one first TPMI group, wherein a TPMI group includes at least two TPMIs, and different TPMIs in the same TPMI group correspond to the same number of activated antenna ports; the first TPMI and the first TPMI group are used to enable the terminal to send uplink channels and / or uplink signals at full power; the terminal receives second information, where the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information; and the uplink channel and / or uplink signal are sent at full power based on the target TPMI.

[0028] In the above embodiment, the present disclosure provides a method for a terminal to report "a TPMI or TPMI group that enables the terminal to achieve full-power transmission", so that the terminal can report the TPMI or TPMI group that enables the terminal to achieve full-power transmission to the network device. As a result, the network device can select the TPMI for use by the terminal from the TPMI or TPMI group reported by the terminal and indicate it to the terminal. The terminal can then achieve full-power transmission based on the TPMI indicated by the network device, thereby improving transmission performance.

[0029] In conjunction with some embodiments of the first aspect, in some embodiments, the terminal is a fully coherent terminal or a partially coherent terminal, and the first TPMI indicated by the first information or the TPMI in the first TPMI group indicated by the first information is an 8-port partially coherent TPMI or an 8-port incoherent TPMI;

[0030] The terminal is a non-coherent terminal, and the first TPMI indicated by the first information or the TPMI in the first TPMI group indicated by the first information is an 8-port non-coherent TPMI.

[0031] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes a bitmap, each bit in the bitmap corresponds to a TPMI, and a bit value carried by a bit in the bitmap is used to indicate whether the TPMI corresponding to the bit is the first TPMI;

[0032] Alternatively, each bit in the bitmap corresponds to a TPMI group, and the bit value carried by the bit in the bitmap is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0033] In the above embodiment, the terminal can report the "TPMI or TPMI group that can enable the terminal to achieve full-power transmission" by reporting the bit map corresponding to the TPMI or TPMI group. Therefore, the present disclosure provides a method for a terminal to specifically report the "TPMI or TPMI group that can enable the terminal to achieve full-power transmission", ensuring that subsequent network devices can select the TPMI for use by the terminal from the TPMI or TPMI group reported by the terminal and indicate it to the terminal. Then, the terminal can achieve full-power transmission based on the TPMI indicated by the network device, thereby improving transmission performance.

[0034] In combination with some embodiments of the first aspect, in some embodiments, the terminal includes 8 antenna ports.

[0035] In combination with some embodiments of the first aspect, in some embodiments, the number of antenna port groups is 8, the number of transmission layers is greater than or equal to 1 and less than or equal to 7, and the terminal does not have the ability to dynamically switch the power amplifier PA and the antenna port connection, the first information includes N bits, N is a positive integer, 1≤N≤7, wherein different bits correspond to different numbers of transmission layers, and the bit values ​​carried by different bits are used to indicate whether any TPMI corresponding to the number of transmission layers corresponding to the bit is the first TPMI; wherein each number of transmission layers corresponds to at least one TPMI.

[0036] With reference to some embodiments of the first aspect, in some embodiments, the bit values ​​carried by different bits are used to indicate whether the first TPMI corresponding to the transmission layer number corresponding to the bit is the first TPMI.

[0037] In combination with some embodiments of the first aspect, in some embodiments, the number of antenna port groups is 8, the number of transmission layers is greater than or equal to 1 and less than or equal to 7, and the terminal has the ability to dynamically switch the PA and antenna port connection, the first information includes M bits, M is a positive integer, 1≤M≤254, and the M bits correspond to all or part of the TPMI corresponding to the number of transmission layers 1 to 7, wherein one bit corresponds to one TPMI, and the bit value carried by different bits is used to indicate whether the TPMI corresponding to the bit is the first TPMI.

[0038] With reference to some embodiments of the first aspect, in some embodiments, the TPMI corresponding to the bit is an 8-port non-coherent TPMI.

[0039] In the above embodiment, for a terminal with 8 antenna port groups, a correspondence between a bit map and TPMI is provided, so that the terminal successfully reports the "TPMI that enables the terminal to achieve full power transmission" by reporting the bit map, ensuring that the terminal can subsequently successfully achieve full power transmission and improve transmission performance.

[0040] In combination with some embodiments of the first aspect, in some embodiments, when the number of antenna port groups is 4 and the number of transmission layers is 1, the first information includes L bits, L is a positive integer, 1≤L≤4, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port 1-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port 1-layer codeword, or a 2-row 1-column all-zero vector; any one of the 4 antenna port groups corresponds to a 2-port 1-layer fully coherent codeword; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0041] In combination with some embodiments of the first aspect, in some embodiments, when the number of antenna port groups is 4 and the number of transmission layers is 2, the first information includes F bits, where F is a positive integer, 1≤F≤10, and different bits correspond to different TPMI groups. The TPMI in the TPMI group corresponding to the bit is an 8-port 2-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port codeword, a 2-row all-zero vector, or a 2-row all-zero matrix; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0042] In combination with some embodiments of the first aspect, in some embodiments, each antenna port group corresponds to a 2-port 2-layer codeword, a 2-row 2-column all-zero matrix, and any one of the 4 antenna port groups corresponds to a 2-port 2-layer fully coherent codeword; or

[0043] Each antenna port group corresponds to a 2-port 1-layer codeword and a 2-row 1-column all-zero vector, and any two antenna port groups among the four antenna port groups correspond to a 2-port 1-layer fully coherent codeword.

[0044] In combination with some embodiments of the first aspect, in some embodiments, when the number of antenna port groups is 4 and the number of transmission layers is 3, the first information includes H bits, where H is a positive integer, 1≤H≤10, and different bits correspond to different TPMI groups. The TPMI in the TPMI group corresponding to the bit is an 8-port 3-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port codeword, a 2-row all-zero vector, or a 2-row all-zero matrix; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0045] In combination with some embodiments of the first aspect, in some embodiments, some of the four antenna port groups correspond to 2-port 1-layer codewords, or 2 rows and 1 column all-zero vectors, and the other part of the four antenna port groups correspond to 2-port 2-layer codewords, or 2 rows and 2 columns of all-zero matrices; wherein any one of the four antenna port groups corresponds to a 2-port 1-layer fully coherent codeword, and any one of the four antenna port groups corresponds to a 2-port 2-layer fully coherent codeword; or

[0046] Each antenna port group corresponds to a 2-port 1-layer codeword, or a 2-row 1-column all-zero vector, and any three antenna port groups among the four antenna port groups correspond to a 2-port 1-layer fully coherent codeword.

[0047] In the above embodiment, for a terminal with four antenna port groups, a correspondence between a bit map and a TPMI group is provided, so that the terminal successfully reports the "TPMI group that enables the terminal to achieve full power transmission" by reporting the bit map, ensuring that the terminal can subsequently successfully achieve full power transmission and improve transmission performance.

[0048] In combination with some embodiments of the first aspect, in some embodiments, when the number of antenna port groups is 2, the first information includes G bits, G is a positive integer, 1≤G≤2, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port partially coherent TPMI, wherein each antenna port group corresponds to a 4-port codeword, a 4-row all-zero vector, or a 4-row all-zero matrix, and any one of the 2 antenna port groups corresponds to a 4-port fully coherent codeword; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0049] In combination with some embodiments of the first aspect, in some embodiments, each antenna port group corresponds to a 4-port 1-layer codeword or a 4-row 1-column all-zero vector; or, each antenna port group corresponds to a 4-port S-layer codeword or a 4-row S-column all-zero matrix, S = 2, 3 or 4.

[0050] In the above embodiment, for a terminal with two antenna port groups, a correspondence between a bit map and a TPMI group is provided, so that the terminal successfully reports the "TPMI group that enables the terminal to achieve full power transmission" by reporting the bit map, ensuring that the terminal can subsequently successfully achieve full power transmission and improve transmission performance.

[0051] In a second aspect, an embodiment of the present disclosure provides a communication method, which is executed by a network device and includes:

[0052] The network device receives first information sent by the terminal, where the first information is used to indicate at least one first TPMI, or the first information is used to indicate at least one first TPMI group, wherein a TPMI group includes at least two TPMIs, and different TPMIs in the same TPMI group correspond to the same number of activated antenna ports; the first TPMI and the first TPMI group are used to enable the terminal to send an uplink channel and / or an uplink signal at full power; the network device sends second information to the terminal, where the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information; the network device receives an uplink channel and / or an uplink signal sent by the terminal based on the target TPMI.

[0053] In the above embodiment, the present disclosure provides a method for a terminal to report "a TPMI or TPMI group that enables the terminal to achieve full-power transmission", so that the terminal can report the TPMI or TPMI group that enables the terminal to achieve full-power transmission to the network device. As a result, the network device can select the TPMI for use by the terminal from the TPMI or TPMI group reported by the terminal and indicate it to the terminal. The terminal can then achieve full-power transmission based on the TPMI indicated by the network device, thereby improving transmission performance.

[0054] In conjunction with some embodiments of the second aspect, in some embodiments, the terminal is a fully coherent terminal or a partially coherent terminal, and the first TPMI indicated by the first information or the TPMI in the first TPMI group indicated by the first information is an 8-port partially coherent TPMI or an 8-port incoherent TPMI;

[0055] The terminal is a non-coherent terminal, and the first TPMI indicated by the first information or the TPMI in the first TPMI group indicated by the first information is an 8-port non-coherent TPMI.

[0056] In conjunction with some embodiments of the second aspect, in some embodiments, the first information includes a bitmap, each bit in the bitmap corresponds to a TPMI, and a bit value carried by a bit in the bitmap is used to indicate whether the TPMI corresponding to the bit is the first TPMI;

[0057] Alternatively, each bit in the bitmap corresponds to a TPMI group, and the bit value carried by the bit in the bitmap is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0058] In combination with some embodiments of the second aspect, in some embodiments, the terminal includes 8 antenna ports.

[0059] In combination with some embodiments of the second aspect, in some embodiments, when the number of antenna port groups is 8, the number of transmission layers is greater than or equal to 1 and less than or equal to 7, and the terminal does not have the ability to dynamically switch the PA and antenna port connection, the first information includes N bits, N is a positive integer, 1≤N≤7, wherein different bits correspond to different numbers of transmission layers, and the bit values ​​carried by different bits are used to indicate whether any TPMI corresponding to the number of transmission layers corresponding to the bit is the first TPMI; wherein each number of transmission layers corresponds to at least one TPMI.

[0060] In combination with some embodiments of the second aspect, in some embodiments, the bit values ​​carried by different bits are used to indicate whether the first TPMI corresponding to the transmission layer number corresponding to the bit is the first TPMI.

[0061] In combination with some embodiments of the second aspect, in some embodiments, the number of antenna port groups is 8, the number of transmission layers is greater than or equal to 1 and less than or equal to 7, and the terminal has the ability to dynamically switch the PA and antenna port connection, the first information includes M bits, M is a positive integer, 1≤M≤254, and the M bits correspond to all or part of the TPMI corresponding to the number of transmission layers 1 to 7, wherein one bit corresponds to one TPMI, and the bit value carried by different bits is used to indicate whether the TPMI corresponding to the bit is the first TPMI.

[0062] With reference to some embodiments of the second aspect, in some embodiments, the TPMI corresponding to the bit is an 8-port non-coherent TPMI.

[0063] In combination with some embodiments of the second aspect, in some embodiments, when the number of antenna port groups is 4 and the number of transmission layers is 1, the first information includes L bits, L is a positive integer, 1≤L≤4, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port 1-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port 1-layer codeword, or a 2-row 1-column all-zero vector; any one of the 4 antenna port groups corresponds to a 2-port 1-layer fully coherent codeword; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0064] In combination with some embodiments of the second aspect, in some embodiments, when the number of antenna port groups is 4 and the number of transmission layers is 2, the first information includes F bits, where F is a positive integer, 1≤F≤10, and different bits correspond to different TPMI groups. The TPMI in the TPMI group corresponding to the bit is an 8-port 2-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port codeword, a 2-row all-zero vector, or a 2-row all-zero matrix; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0065] In combination with some embodiments of the second aspect, in some embodiments, each antenna port group corresponds to a 2-port 2-layer codeword, a 2-row 2-column all-zero matrix, and any one of the 4 antenna port groups corresponds to a 2-port 2-layer fully coherent codeword; or

[0066] Each antenna port group corresponds to a 2-port 1-layer codeword and a 2-row 1-column all-zero vector, and any two antenna port groups among the four antenna port groups correspond to a 2-port 1-layer fully coherent codeword.

[0067] In combination with some embodiments of the second aspect, in some embodiments, when the number of antenna port groups is 4 and the number of transmission layers is 3, the first information includes H bits, H is a positive integer, 1≤H≤10, and different bits correspond to different TPMI groups. The TPMI in the TPMI group corresponding to the bit is an 8-port 3-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port codeword, a 2-row all-zero vector, or a 2-row all-zero matrix; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0068] In combination with some embodiments of the second aspect, in some embodiments, some of the four antenna port groups correspond to 2-port 1-layer codewords, or 2 rows and 1 column all-zero vectors, and the other part of the four antenna port groups correspond to 2-port 2-layer codewords, or 2 rows and 2 columns of all-zero matrices; wherein any one of the four antenna port groups corresponds to a 2-port 1-layer fully coherent codeword, and any one of the four antenna port groups corresponds to a 2-port 2-layer fully coherent codeword; or

[0069] Each antenna port group corresponds to a 2-port 1-layer codeword, or a 2-row 1-column all-zero vector, and any three antenna port groups among the four antenna port groups correspond to a 2-port 1-layer fully coherent codeword.

[0070] In combination with some embodiments of the second aspect, in some embodiments, when the number of antenna port groups is 2, the first information includes G bits, G is a positive integer, 1≤G≤2, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port partially coherent TPMI, wherein each antenna port group corresponds to a 4-port codeword, a 4-row all-zero vector, or a 4-row all-zero matrix, and any one of the 2 antenna port groups corresponds to a 4-port fully coherent codeword; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0071] In combination with some embodiments of the second aspect, in some embodiments, each antenna port group corresponds to a 4-port 1-layer codeword or a 4-row 1-column all-zero vector; or, each antenna port group corresponds to a 4-port S-layer codeword or a 4-row S-column all-zero matrix, S = 2, 3 or 4.

[0072] In a third aspect, an embodiment of the present disclosure provides a communication method for a communication system, wherein the communication system includes a terminal and a network device, and the method includes at least one of the following:

[0073] The terminal sends first information based on the number of antenna port groups, where the first information is used to indicate at least one first transmission precoding matrix indicating TPMI, or the first information is used to indicate at least one first TPMI group, wherein a TPMI group includes at least two TPMIs, and different TPMIs in the same TPMI group correspond to the same number of activated antenna ports; the first TPMI and the first TPMI group are used to enable the terminal to send uplink channels and / or uplink signals at full power; the network device receives the first information; the network device sends second information, where the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information; the terminal receives the second information; and sends uplink channels and / or uplink signals at full power based on the target TPMI.

[0074] In a fourth aspect, an embodiment of the present disclosure provides a terminal, including:

[0075] A sending module, configured to send first information based on the number of antenna port groups, wherein the first information is used to indicate at least one first transmission precoding matrix indicating TPMI, or the first information is used to indicate at least one first TPMI group, wherein a TPMI group includes at least two TPMIs, and different TPMIs in the same TPMI group correspond to the same number of activated antenna ports; the first TPMI and the first TPMI group are used to enable the terminal to send an uplink channel and / or an uplink signal at full power; a receiving module, configured to receive second information, wherein the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information; the sending module is further configured to send an uplink channel and / or an uplink signal at full power based on the target TPMI.

[0076] In conjunction with some embodiments of the fourth aspect, in some embodiments, the terminal is a fully coherent terminal or a partially coherent terminal, and the first TPMI indicated by the first information or the TPMI in the first TPMI group indicated by the first information is an 8-port partially coherent TPMI or an 8-port incoherent TPMI;

[0077] The terminal is a non-coherent terminal, and the first TPMI indicated by the first information or the TPMI in the first TPMI group indicated by the first information is an 8-port non-coherent TPMI.

[0078] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first information includes a bitmap, each bit in the bitmap corresponds to a TPMI, and a bit value carried by a bit in the bitmap is used to indicate whether the TPMI corresponding to the bit is the first TPMI;

[0079] Alternatively, each bit in the bitmap corresponds to a TPMI group, and the bit value carried by the bit in the bitmap is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0080] In combination with some embodiments of the fourth aspect, in some embodiments, the terminal includes 8 antenna ports.

[0081] In combination with some embodiments of the fourth aspect, in some embodiments, when the number of antenna port groups is 8, the number of transmission layers is greater than or equal to 1 and less than or equal to 7, and the terminal does not have the ability to dynamically switch the power amplifier PA and the antenna port connection, the first information includes N bits, N is a positive integer, 1≤N≤7, wherein different bits correspond to different numbers of transmission layers, and the bit values ​​carried by different bits are used to indicate whether any TPMI corresponding to the number of transmission layers corresponding to the bit is the first TPMI; wherein each number of transmission layers corresponds to at least one TPMI.

[0082] With reference to some embodiments of the fourth aspect, in some embodiments, the bit values ​​carried by different bits are used to indicate whether the first TPMI corresponding to the transmission layer number corresponding to the bit is the first TPMI.

[0083] In combination with some embodiments of the fourth aspect, in some embodiments, the number of antenna port groups is 8, the number of transmission layers is greater than or equal to 1 and less than or equal to 7, and the terminal has the ability to dynamically switch the PA and antenna port connection, the first information includes M bits, M is a positive integer, 1≤M≤254, and the M bits correspond to all or part of the TPMI corresponding to the number of transmission layers 1 to 7, wherein one bit corresponds to one TPMI, and the bit value carried by different bits is used to indicate whether the TPMI corresponding to the bit is the first TPMI.

[0084] With reference to some embodiments of the fourth aspect, in some embodiments, the TPMI corresponding to the bit is an 8-port non-coherent TPMI.

[0085] In combination with some embodiments of the fourth aspect, in some embodiments, when the number of antenna port groups is 4 and the number of transmission layers is 1, the first information includes L bits, L is a positive integer, 1≤L≤4, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port 1-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port 1-layer codeword, or a 2-row 1-column all-zero vector; any one of the 4 antenna port groups corresponds to a 2-port 1-layer fully coherent codeword; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0086] In combination with some embodiments of the fourth aspect, in some embodiments, when the number of antenna port groups is 4 and the number of transmission layers is 2, the first information includes F bits, F is a positive integer, 1≤F≤10, and different bits correspond to different TPMI groups. The TPMI in the TPMI group corresponding to the bit is an 8-port 2-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port codeword, a 2-row all-zero vector, or a 2-row all-zero matrix; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0087] In combination with some embodiments of the fourth aspect, in some embodiments, each antenna port group corresponds to a 2-port 2-layer codeword, a 2-row 2-column all-zero matrix, and any one of the 4 antenna port groups corresponds to a 2-port 2-layer fully coherent codeword; or

[0088] Each antenna port group corresponds to a 2-port 1-layer codeword and a 2-row 1-column all-zero vector, and any two antenna port groups among the four antenna port groups correspond to a 2-port 1-layer fully coherent codeword.

[0089] In combination with some embodiments of the fourth aspect, in some embodiments, when the number of antenna port groups is 4 and the number of transmission layers is 3, the first information includes H bits, H is a positive integer, 1≤H≤10, and different bits correspond to different TPMI groups. The TPMI in the TPMI group corresponding to the bit is an 8-port 3-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port codeword, a 2-row all-zero vector, or a 2-row all-zero matrix; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0090] In combination with some embodiments of the fourth aspect, in some embodiments, some of the four antenna port groups correspond to 2-port 1-layer codewords, or 2 rows and 1 column all-zero vectors, and the other part of the four antenna port groups correspond to 2-port 2-layer codewords, or 2 rows and 2 columns of all-zero matrices; wherein, any one of the four antenna port groups corresponds to a 2-port 1-layer fully coherent codeword, and any one of the four antenna port groups corresponds to a 2-port 2-layer fully coherent codeword; or

[0091] Each antenna port group corresponds to a 2-port 1-layer codeword, or a 2-row 1-column all-zero vector, and any three antenna port groups among the four antenna port groups correspond to a 2-port 1-layer fully coherent codeword.

[0092] In combination with some embodiments of the fourth aspect, in some embodiments, when the number of antenna port groups is 2, the first information includes G bits, G is a positive integer, 1≤G≤2, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port partially coherent TPMI, wherein each antenna port group corresponds to a 4-port codeword, a 4-row all-zero vector, or a 4-row all-zero matrix, and any one of the 2 antenna port groups corresponds to a 4-port fully coherent codeword; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0093] In combination with some embodiments of the fourth aspect, in some embodiments, each antenna port group corresponds to a 4-port 1-layer codeword or a 4-row 1-column all-zero vector; or, each antenna port group corresponds to a 4-port S-layer codeword or a 4-row S-column all-zero matrix, S = 2, 3 or 4.

[0094] In a fifth aspect, an embodiment of the present disclosure provides a network device, including:

[0095] The network device receives first information sent by the terminal, where the first information is used to indicate at least one first TPMI, or the first information is used to indicate at least one first TPMI group, wherein a TPMI group includes at least two TPMIs, and different TPMIs in the same TPMI group correspond to the same number of activated antenna ports; the first TPMI and the first TPMI group are used to enable the terminal to send an uplink channel and / or an uplink signal at full power; a sending module is used to send second information to the terminal, where the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information; and a receiving module is used to receive an uplink channel and / or an uplink signal sent by the terminal based on the target TPMI.

[0096] In conjunction with some embodiments of the fifth aspect, in some embodiments, the terminal is a fully coherent terminal or a partially coherent terminal, and the first TPMI indicated by the first information or the TPMI in the first TPMI group indicated by the first information is an 8-port partially coherent TPMI or an 8-port incoherent TPMI;

[0097] The terminal is a non-coherent terminal, and the first TPMI indicated by the first information or the TPMI in the first TPMI group indicated by the first information is an 8-port non-coherent TPMI.

[0098] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first information includes a bitmap, each bit in the bitmap corresponds to a TPMI, and a bit value carried by a bit in the bitmap is used to indicate whether the TPMI corresponding to the bit is the first TPMI;

[0099] Alternatively, each bit in the bitmap corresponds to a TPMI group, and the bit value carried by the bit in the bitmap is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0100] In combination with some embodiments of the fifth aspect, in some embodiments, the terminal includes 8 antenna ports.

[0101] In combination with some embodiments of the fifth aspect, in some embodiments, when the number of antenna port groups is 8, the number of transmission layers is greater than or equal to 1 and less than or equal to 7, and the terminal does not have the ability to dynamically switch the PA and antenna port connection, the first information includes N bits, N is a positive integer, 1≤N≤7, wherein different bits correspond to different numbers of transmission layers, and the bit values ​​carried by different bits are used to indicate whether any TPMI corresponding to the number of transmission layers corresponding to the bit is the first TPMI; wherein each number of transmission layers corresponds to at least one TPMI.

[0102] With reference to some embodiments of the fifth aspect, in some embodiments, the bit values ​​carried by different bits are used to indicate whether the first TPMI corresponding to the transmission layer number corresponding to the bit is the first TPMI.

[0103] In combination with some embodiments of the fifth aspect, in some embodiments, the number of antenna port groups is 8, the number of transmission layers is greater than or equal to 1 and less than or equal to 7, and the terminal has the ability to dynamically switch the PA and antenna port connection, the first information includes M bits, M is a positive integer, 1≤M≤254, and the M bits correspond to all or part of the TPMI corresponding to the number of transmission layers 1 to 7, wherein one bit corresponds to one TPMI, and the bit value carried by different bits is used to indicate whether the TPMI corresponding to the bit is the first TPMI.

[0104] With reference to some embodiments of the fifth aspect, in some embodiments, the TPMI corresponding to the bit is an 8-port non-coherent TPMI.

[0105] In combination with some embodiments of the fifth aspect, in some embodiments, when the number of antenna port groups is 4 and the number of transmission layers is 1, the first information includes L bits, L is a positive integer, 1≤L≤4, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port 1-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port 1-layer codeword, or a 2-row 1-column all-zero vector; any one of the 4 antenna port groups corresponds to a 2-port 1-layer fully coherent codeword; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0106] In combination with some embodiments of the fifth aspect, in some embodiments, when the number of antenna port groups is 4 and the number of transmission layers is 2, the first information includes F bits, where F is a positive integer, 1≤F≤10, and different bits correspond to different TPMI groups. The TPMI in the TPMI group corresponding to the bit is an 8-port 2-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port codeword, a 2-row all-zero vector, or a 2-row all-zero matrix; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0107] In combination with some embodiments of the fifth aspect, in some embodiments, each antenna port group corresponds to a 2-port 2-layer codeword, a 2-row 2-column all-zero matrix, and any one of the 4 antenna port groups corresponds to a 2-port 2-layer fully coherent codeword; or

[0108] Each antenna port group corresponds to a 2-port 1-layer codeword and a 2-row 1-column all-zero vector, and any two antenna port groups among the four antenna port groups correspond to a 2-port 1-layer fully coherent codeword.

[0109] In combination with some embodiments of the fifth aspect, in some embodiments, when the number of antenna port groups is 4 and the number of transmission layers is 3, the first information includes H bits, H is a positive integer, 1≤H≤10, and different bits correspond to different TPMI groups. The TPMI in the TPMI group corresponding to the bit is an 8-port 3-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port codeword, a 2-row all-zero vector, or a 2-row all-zero matrix; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0110] In combination with some embodiments of the fifth aspect, in some embodiments, some of the four antenna port groups correspond to 2-port 1-layer codewords, or 2 rows and 1 column all-zero vectors, and the other part of the four antenna port groups correspond to 2-port 2-layer codewords, or 2 rows and 2 columns of all-zero matrices; wherein, any one of the four antenna port groups corresponds to a 2-port 1-layer fully coherent codeword, and any one of the four antenna port groups corresponds to a 2-port 2-layer fully coherent codeword; or

[0111] Each antenna port group corresponds to a 2-port 1-layer codeword, or a 2-row 1-column all-zero vector, and any three antenna port groups among the four antenna port groups correspond to a 2-port 1-layer fully coherent codeword.

[0112] In combination with some embodiments of the fifth aspect, in some embodiments, when the number of antenna port groups is 2, the first information includes G bits, G is a positive integer, 1≤G≤2, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port partially coherent TPMI, wherein each antenna port group corresponds to a 4-port codeword, a 4-row all-zero vector, or a 4-row all-zero matrix, and any one of the 2 antenna port groups corresponds to a 4-port fully coherent codeword; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0113] In combination with some embodiments of the fifth aspect, in some embodiments, each antenna port group corresponds to a 4-port 1-layer codeword or a 4-row 1-column all-zero vector; or, each antenna port group corresponds to a 4-port S-layer codeword or a 4-row S-column all-zero matrix, S = 2, 3 or 4.

[0114] In a sixth aspect, an embodiment of the present disclosure proposes a communication device, which includes: one or more processors; one or more memories for storing instructions; wherein the processor is used to call the instructions so that the communication device executes the communication method described in the first and second aspects, and the optional implementation methods of the first and second aspects.

[0115] In the seventh aspect, an embodiment of the present disclosure proposes a communication system, which includes: a terminal and a network device; wherein the terminal is configured to execute the method described in the first aspect and the optional implementation of the first aspect, and the network device is configured to execute the method described in the second aspect and the optional implementation of the second aspect.

[0116] In an eighth aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.

[0117] In a ninth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.

[0118] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.

[0119] It is understandable that the above-mentioned terminals, network devices, communication devices, communication systems, storage media, program products, and computer programs are all used to execute the methods proposed in 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.

[0120] The present disclosure provides invention titles. In some embodiments, the terms "communication method" and "information processing method," "information sending method," and "information receiving method" are interchangeable; the terms "communication device" and "information processing device," "information sending device," and "information receiving device" are interchangeable; and the terms "information processing system," "communication system," "information sending system," and "information receiving system" are interchangeable.

[0121] 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.

[0122] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0123] 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.

[0124] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0125] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0126] In some embodiments, the terms "at least one of", "at least one of", "at least one of", "one or more", "a plurality of", "multiple", etc. can be used interchangeably.

[0127] In the embodiments of the present disclosure, descriptions such as “at least one of A, B, C…”, “A and / or B and / or C…”, etc. include the situation where any one of A, B, C… exists alone, and also include any combination of any multiple of A, B, C…, and each situation can exist alone; for example, “at least one of A, B, C” includes the situation where A exists alone, B exists alone, C exists alone, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B, and C; for example, A and / or B includes the situation where A exists alone, B exists alone, and the combination of A and B.

[0128] In some embodiments, descriptions such as "in one case A, in another case B," or "in response to one case A, in response to another case B," can include the following technical solutions depending on the situation: executing A independently of B (in some embodiments, A); executing B independently of A (in some embodiments, B); selectively executing A and B (in some embodiments, selecting between A and B); and executing both A and B (in some embodiments, A and B). The same applies when there are more branches, such as A, B, and C.

[0129] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0130] 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.

[0131] 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.

[0132] 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.

[0133] 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.

[0134] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0135] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0136] 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.

[0137] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, it can also be called device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it can also be set as a structure in which the terminal has all or part of the functions of the access network device. In addition, language such as "uplink" and "downlink" can also be replaced by language corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0138] 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.

[0139] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0140] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0141] 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.

[0142] The correspondences shown in the tables of the present disclosure can be configured or predefined. The values ​​of the information in each table are merely examples and can be configured to other values, which are not limited by the present disclosure. When configuring the correspondences between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, in the tables of the present disclosure, the correspondences shown in certain rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables may also adopt other names that can be understood by the communication device, and the values ​​or representations of the parameters may also adopt other values ​​or representations that can be understood by the communication device. When implementing the above tables, other data structures may also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables, etc.

[0143] The predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0144] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1, the communication system 100 may include at least one of a terminal 101 and a network device 102. The network device may include at least one of an access network device and a core network device.

[0145] In some embodiments, the terminal includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0146] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a wireless fidelity (WiFi) system, but is not limited thereto.

[0147] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0148] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0149] In some embodiments, the core network device may be a device including one or more network elements, or may be multiple devices or a group of devices, each including all or part of one or more network elements. The network element may be virtual or physical. The core network, for example, includes at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC). Alternatively, the core network device may also be a location management function network element. Exemplarily, the location management function network element includes a location server (location server), which may be implemented as any one of the following: Location Management Function (LMF), Enhanced Serving Mobile Location Centre (E-SMLC), Secure User Plane Location (SUPL), and Secure User Plane Location Platform (SUPLLP).

[0150] 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.

[0151] The following embodiments of the present disclosure may be applied to the communication system 100 shown in Figure 1, or a portion thereof, but are not limited thereto. The entities shown in Figure 1 are illustrative only. The communication system may include all or part of the entities shown in Figure 1, or may include other entities outside of Figure 1. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0152] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile Communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0153] In the study of MIMO uplink 8-port transmission enhancement, the design of fully coherent codebooks, partially coherent codebooks, incoherent codebooks, Transmit Precoding Matrix Indicator (TPMI), and full-power transmission were discussed. Optionally, the number of antenna port groups of the terminal is defined as Ng, with antennas within each antenna port group transmitting fully coherently, and antennas between different antenna port groups transmitting incoherently. When the terminal is fully coherent, Ng = 1; when the terminal is partially coherent, Ng = 2 or 4; when the terminal is incoherent, Ng = 8. For the 8-port fully coherent codebook, the 8-port R15 downlink Type I codebook is used, and the oversampling factor is set to 1. For the partially coherent codebook with Ng = 2, the design is based on the R15 uplink 4-port codebook. For the partially coherent codebook with Ng = 4, the design is based on the R15 uplink 2-port codebook. For non-coherent codebooks, all antenna selection vectors or antenna selection matrices are used.

[0154] However, for some 8-port codewords, full power transmission cannot be achieved due to the limitation of the physical uplink shared channel (PUSCH) power control rules. Optionally, in the PUSCH power control rules, its transmission power needs to be multiplied by the power scaling factor, which is defined as the number of antenna ports with non-zero PUSCH transmissions divided by the total number of configured antenna ports. For example, when the 4-port codeword is When the 4-port codeword is When , this parameter is 4 / 4 = 1, which means full power transmission can be achieved. Therefore, when the number of uplink transmission ports is 8, all fully coherent codebooks can achieve full power transmission. However, when the number of partially coherent codebook layers is 1 with Ng = 2, full power transmission cannot be achieved. When the number of partially coherent codebook layers is 1 to 3 with Ng = 4, full power transmission cannot be achieved. When the number of incoherent codebook layers is 1 to 7, full power transmission cannot be achieved.

[0155] In the discussion of full-power transmission on two and four ports in the R16 uplink, multiple full-power transmission modes were defined to achieve full-power transmission. First, based on the different power amplifier (PA) architectures of terminals, for power class 3 terminals, the full power, maximum power, or rated power of the amplifier is 23dBm. Therefore, three different terminal capabilities are defined. The following example uses a two-port terminal.

[0156] Terminal Capability 1: Each port's corresponding RF chain is configured with a PA with a maximum rated power output, for example, [23 23]dBm

[0157] Terminal Capability 2: The RF chain corresponding to each port is not configured with a PA with maximum rated power output, for example [20 20]dBm

[0158] Terminal Capability 3: The RF chain corresponding to some ports is configured with a PA with maximum rated power output, for example [23 20]dBm

[0159] In response to the above three terminal capabilities, R16 proposes three full-power transmission modes, namely Mode 0, Mode 1 and Mode 2 below.

[0160] Mode 0: In Mode 0, the PUSCH power scaling factor is fixed to 1, corresponding to terminal capability 1. Since each PA can transmit at full power, full power transmission can be achieved even for non-coherent codewords. For example, for codeword Among them, the coherent codewords in this part is the coefficient of the codeword. Full power transmission can be achieved through only the first PA.

[0161] Mode 1: In Mode 1, full power transmission is achieved by introducing codewords that can support full power transmission based on the original codebook subset restriction. For example, for a 4-port 2-layer non-coherent codebook, a 4-port 2-layer partially coherent codeword is introduced.

[0162] Mode 2: In Mode 2, full power transmission can be achieved through two methods. In method 1, full power transmission of a single port can be achieved through port virtualization. The implementation of port virtualization involves the modification of the sounding reference signal (SRS) resource configuration method and the modification of the PUSCH power control rule. For example, for PA = [20 20 17 17] dBm (i.e., the first port, the second port, the third port, and the fourth port correspond to 20, 20, 17, and 17 dBm, respectively), the base station configures 2-port SRS resources, and the terminal can obtain [23 20] dBm through SRS port virtualization, i.e., the first two ports are virtualized into one port. At this time, two 20 dBm can be virtualized to obtain 23 dBm. The third and fourth ports are virtualized into one port. At this time, two 17 dBm can be virtualized to obtain 20 dBm. In this way, the codeword is used. In method 2, the terminal reports a TPMI group that supports full-power transmission based on the PA architecture. For example, for PA = [20 20 20 17] dBm, TPMI group G3 can be reported. Table 1 is a schematic diagram of TPMI group G3, where TPMI group G3 enables the terminal to achieve full-power transmission under PA = [20 20 20 17] dBm.

[0163] However, in the second method of Mode 2, how the terminal reports the TPMI supporting full-power transmission to the network device is not yet clear.

[0164] FIG2A is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2A , the embodiment of the present disclosure relates to a communication method for use in a communication system 100, the method comprising:

[0165] Step 2101: The terminal sends first information, where the first information includes N bits, where N is a positive integer, 1≤N≤7, and different bits correspond to different numbers of transmission layers.

[0166] Optionally, the terminal may be configured to implement full-power transmission based on the second method in Mode 2 above.

[0167] Optionally, in the embodiment of Figure 2A, the terminal may include 8 antenna ports, where the number of antenna port groups may be 8 (i.e., each antenna port group includes 1 antenna port), and the terminal does not have the ability to dynamically switch the PA and antenna port connection. Optionally, the bit values ​​carried by different bits in the first information can be used to indicate whether any TPMI corresponding to the number of transmission layers corresponding to the bit is a first TPMI, and the first TPMI is used to enable the terminal to transmit uplink channels and / or uplink signals at full power.

[0168] Optionally, in some embodiments, for a terminal with 8 antenna ports and 8 antenna port groups, each transmission layer may correspond to at least one TPMI. Optionally, when the transmission layer is 1, it may correspond to TPMIs, the eight TPMIs are all 8-port 1-layer non-coherent TPMIs, for example, When the transport layer is 2 layers, it can correspond to TPMIs, the 28 TPMIs are all 8-port 2-layer non-coherent TPMIs, for example, etc., where B1 = [1 0 0 0 0 0 0 0], B2 = [0 1 0 0 0 0 0 0]. When the transport layer is 3, it can correspond to TPMIs, the 56 TPMIs are all 8-port 3-layer non-coherent TPMIs, for example, etc., where B3 = [0 0 1 0 0 0 0 0]. When the transport layer is 4, it can correspond to TPMIs, the 70 TPMIs are all 8-port 4-layer non-coherent TPMIs, for example, etc., where B4 = [0 0 0 1 0 0 0 0]. When the transport layer is 5, it can correspond to TPMIs, the 56 TPMIs are all 8-port 5-layer non-coherent TPMIs, for example, etc., where B5 = [0 0 0 0 1 0 0 0]. When the transport layer is 6, it can correspond to TPMIs, the 28 TPMIs are all 8-port 6-layer non-coherent TPMIs, for example, etc., where B6 = [0 0 0 0 0 1 0 0]. When the transport layer is 7, it can correspond to TPMIs, the eight TPMIs are all 8-port 7-layer non-coherent TPMIs, for example, etc., where B7 = [0 0 0 0 0 0 1 0] etc.

[0169] The TPMI shown above is only an exemplary introduction and is not limited thereto. In addition, the coefficients of the codewords in this disclosure (such as the above ) are all schematic and may be other values, which are not limited to this.

[0170] The element in row i and column j of the TPMI can be called X ij , where when X ij The value of is used to indicate whether the i-th antenna port is activated when transmitting data at the j-th transmission layer. ij When it is a non-zero value, it means that the i-th antenna port is activated when transmitting data at the j-th transmission layer. Optionally, when the activated antenna port is connected to a PA that can achieve full-power transmission, the terminal can achieve full-power transmission.

[0171] Optionally, the terminal does not have the ability to dynamically switch the connection between the PA and the antenna port, indicating that the connection relationship between the PA and the antenna port is fixed. Therefore, when one or more PAs in the terminal can achieve full-power transmission, since the connection relationship between the PA and the antenna port is fixed, in order to achieve full-power transmission, the position of the activated antenna port should also be fixed, that is, fixedly connected to the PA that can achieve full-power transmission. Therefore, the position of the non-zero elements in the TPMI should also be fixed, which means that only one TPMI among the multiple TPMIs corresponding to each transport layer can enable the terminal to achieve full-power transmission. Therefore, the above-mentioned first information does not need to indicate whether all TPMIs corresponding to each transport layer are the first TPMI, but only whether any TPMI corresponding to each transport layer is the first TPMI, thereby saving indication resources. Optionally, for example, it can indicate the TPMI in each transport layer that enables the terminal to achieve full-power transmission.

[0172] Optionally, the first information may include N bits, where N is a positive integer, 1≤N≤7, wherein different bits correspond to different numbers of transmission layers, and the bit values ​​carried by different bits are used to indicate whether any TPMI corresponding to the number of transmission layers corresponding to the bit is the first TPMI. Optionally, when the bit value carried by the bit is a first value (e.g., 1), it may indicate that the TPMI corresponding to the bit is the first TPMI; when the bit value carried by the bit is a second value (e.g., 0), it may indicate that the TPMI corresponding to the bit is not the first TPMI.

[0173] Optionally, in some embodiments, the bit values ​​carried by different bits in the bitmap in the first information can be used to indicate whether the first TPMI corresponding to the transmission layer number corresponding to the bit is the first TPMI. Specifically, the TPMI corresponding to each transmission layer can be indexed. For example, when the transmission layer number is 1, the indexes of the 8 TPMIs corresponding to the transmission layer number are 0-7, the indexes of the 28 TPMIs corresponding to the transmission layer number is 2, the indexes of the 56 TPMIs corresponding to the transmission layer number is 36-91, the indexes of the 70 TPMIs corresponding to the transmission layer number is 4, the indexes of the 56 TPMIs corresponding to the transmission layer number is 5, the indexes of the 162-217, the indexes of the 28 TPMIs corresponding to the transmission layer number is 6, and the indexes of the 8 TPMIs corresponding to the transmission layer number is 7. Optionally, when the bit map includes 7 bits, and the bit values ​​carried by different bits in the bit map are used to indicate whether the first TPMI corresponding to the number of transmission layers corresponding to the bit is the first TPMI, then the bit value carried by the first bit can be used to indicate whether the TPMI with an index of 0 is the first TPMI, the bit value carried by the second bit can be used to indicate whether the TPMI with an index of 8 is the first TPMI, the bit value carried by the third bit can be used to indicate whether the TPMI with an index of 36 is the first TPMI, the bit value carried by the fourth bit can be used to indicate whether the TPMI with an index of 92 is the first TPMI, the bit value carried by the fifth bit can be used to indicate whether the TPMI with an index of 162 is the first TPMI, the bit value carried by the sixth bit can be used to indicate whether the TPMI with an index of 218 is the first TPMI, and the bit value carried by the seventh bit can be used to indicate whether the TPMI with an index of 246 is the first TPMI.

[0174] For example, the first TPMI corresponding to each transport layer may be as shown in Table 1 below.

[0175] Table 1

[0176] Optionally, in some other embodiments, the bit map included in the first information may also include 6 bits, and the 6 bits correspond to 1-6 transmission layers respectively, such as: the 1st bit corresponds to the 1st transmission layer, the 2nd bit corresponds to the 2nd transmission layer, the 3rd bit corresponds to the 3rd transmission layer, the 4th bit corresponds to the 4th transmission layer, the 5th bit corresponds to the 5th transmission layer, and the 6th bit corresponds to the 6th transmission layer; wherein, the bit values ​​carried by different bits in the first information can be used to indicate whether any TPMI corresponding to the number of transmission layers corresponding to the bit is the first TPMI.

[0177] Optionally, in some embodiments, the terminal may send the above-mentioned first information to the network device, and the network device may receive the first information.

[0178] Step 2102: The network device selects a target TPMI from at least one first TPMI indicated by the first information.

[0179] Optionally, in some embodiments, the network device may select a target TPMI from the first TPMI indicated by the first information based on one or more SRSs sent by the terminal. Optionally, the network device may pre-configure one or more SRS resources for the terminal, wherein different SRS resources correspond to different TPMIs, and the terminal may send an SRS based on the one or more SRS resources. The network device may measure the one or more received SRSs, and the network device may select one or more target SRSs corresponding to the first TPMI indicated by the first information from the one or more received SRSs, and then select the TPMI corresponding to the target SRS with the best measurement result from the one or more target SRSs as the target TPMI.

[0180] Step 2103: The network device sends second information to the terminal, where the second information is used to indicate the target TPMI.

[0181] Step 2104: The terminal sends an uplink channel and / or an uplink signal based on the target TPMI.

[0182] Optionally, the terminal may transmit the uplink channel and / or uplink signal at full power based on the target TPMI.

[0183] The communication method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2104. For example, step S2101 may be implemented as an independent embodiment, step S2102 may be implemented as an independent embodiment, step S2103 may be implemented as an independent embodiment, and steps S2101+S2102 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0184] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0185] FIG2B is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2B , the embodiment of the present disclosure relates to a communication method for use in a communication system 100, the method comprising:

[0186] Step 2201: The terminal sends first information, where the first information includes M bits, where M is a positive integer, 1≤M≤254, and the M bits correspond to all or part of the TPMI corresponding to the number of transmission layers 1 to 7.

[0187] Optionally, in the embodiment of Figure 2B, the terminal may include 8 antenna ports, where the number of antenna port groups may be 8 (i.e., each antenna port group includes 1 antenna port), and the terminal has the ability to dynamically switch the PA and antenna port connection. Optionally, one bit in the first information may correspond to a TPMI, and the bit value carried by different bits is used to indicate whether the TPMI corresponding to the bit is a first TPMI, and the first TPMI is used to enable the terminal to achieve full power transmission.

[0188] Optionally, when a terminal has the ability to dynamically switch the connection between a PA and an antenna port, this indicates that the connection relationship between the PA and the antenna port can be dynamically switched. Therefore, when one or more PAs in the terminal can achieve full-power transmission, since the connection relationship between the PA and the antenna port can be dynamically switched, it is only necessary to ensure that the number of activated antenna ports is the same as the number of PAs that can achieve full-power transmission. In this case, by dynamically switching the connection relationship between the PA and the antenna port, all PAs that can achieve full-power transmission are connected to the activated antenna ports, thereby achieving full-power transmission for the terminal. Based on this, the position of the non-zero elements in the TPMI used to achieve full-power transmission can be flexible, but only requires that the condition that "the number of non-zero elements is the same as the number of PAs that can achieve full-power transmission" be met. This ensures that multiple TPMIs corresponding to each transmission layer can all enable the terminal to achieve full-power transmission. Therefore, the aforementioned first information can indicate all or part of the TPMIs corresponding to transmission layers 1 to 7, thereby indicating as many TPMIs that can achieve full-power transmission as possible.

[0189] For example, the bit map of the first information may include 254 bits, wherein the bit values ​​carried by the 1st to 8th bits may respectively indicate whether the 8 TPMIs corresponding to the number of transmission layers is 1 are the first TPMI, the bit values ​​carried by the 9th to 36th bits may respectively indicate whether the 28 TPMIs corresponding to the number of transmission layers is 2 are the first TPMI, the bit values ​​carried by the 37th to 92nd bits may respectively indicate whether the 56 TPMIs corresponding to the number of transmission layers is 3 are the first TPMI, and the bit values ​​carried by the 93rd to 162nd bits may respectively indicate whether the 56 TPMIs corresponding to the number of transmission layers is 3 are the first TPMI. The values ​​can indicate whether the 70 TPMIs corresponding to 4 transmission layers are the first TPMIs, the bit values ​​carried by the 163rd to 218th bits can indicate whether the 56 TPMIs corresponding to 5 transmission layers are the first TPMIs, the bit values ​​carried by the 219th to 246th bits can indicate whether the 28 TPMIs corresponding to 6 transmission layers are the first TPMIs, and the bit values ​​carried by the 247th to 254th bits can indicate whether the 8 TPMIs corresponding to 7 transmission layers are the first TPMIs.

[0190] For example, in another embodiment, the bit map of the first information may include 246 bits, wherein the bit values ​​carried by the 1st to 8th bits may respectively indicate whether the 8 TPMIs corresponding to the number of transmission layers is 1 are the first TPMI, the bit values ​​carried by the 9th to 36th bits may respectively indicate whether the 28 TPMIs corresponding to the number of transmission layers is 2 are the first TPMI, the bit values ​​carried by the 37th to 92nd bits may respectively indicate whether the 56 TPMIs corresponding to the number of transmission layers is 3 are the first TPMI, the bit values ​​carried by the 93rd to 162nd bits may respectively indicate whether the 70 TPMIs corresponding to the number of transmission layers is 4 are the first TPMI, the bit values ​​carried by the 163rd to 218th bits may respectively indicate whether the 56 TPMIs corresponding to the number of transmission layers is 5 are the first TPMI, and the bit values ​​carried by the 219th to 246th bits may respectively indicate whether the 28 TPMIs corresponding to the number of transmission layers is 6 are the first TPMI.

[0191] Optionally, when the bit value carried by the bit is a first value (such as 1), it can indicate that the TPMI corresponding to the bit is the first TPMI; when the bit value carried by the bit is a second value (such as 0), it can indicate that the TPMI corresponding to the bit is not the first TPMI.

[0192] Optionally, in some embodiments, the terminal may send the above-mentioned first information to the network device, and the network device may receive the first information.

[0193] Step 2202: The network device selects a target TPMI from at least one first TPMI indicated by the first information.

[0194] Step 2203: The network device sends second information to the terminal.

[0195] Step 2204: The terminal sends an uplink channel and / or an uplink signal based on the target TPMI.

[0196] For further detailed description of steps 2202 - 2204 , please refer to the above embodiment description.

[0197] The communication method involved in the embodiments of the present disclosure may include at least one of steps S2201 to S2204. For example, step S2201 may be implemented as an independent embodiment, step S2202 may be implemented as an independent embodiment, step S2203 may be implemented as an independent embodiment, and steps S2201+S2202 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0198] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0199] FIG2C is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2C , the embodiment of the present disclosure relates to a communication method for use in a communication system 100, the method comprising:

[0200] Step 2301: The terminal sends first information, where the first information includes a bit map, and different bits in the first information correspond to different TPMI groups.

[0201] Optionally, in the embodiment of Figure 2C, the terminal may include 8 antenna ports, where the number of antenna port groups may be 4 (i.e., each antenna port group includes 2 antenna ports). Optionally, the terminal may report first information when the number of transmission layers is 1, 2, or 3, respectively. The first information is used to indicate the first TPMI group corresponding to the number of transmission layers of 1, 2, or 3, respectively. The first TPMI group is used to enable the terminal to achieve full power transmission.

[0202] Optionally, in some embodiments, a TPMI group may include at least two TPMIs, and different TPMIs in the same TPMI group may correspond to the same number of activated antenna ports.

[0203] The following describes how the terminal reports the first information when the transmission layer number is 1, 2, and 3 respectively.

[0204] Optionally, when the number of transmission layers is 1, the terminal sends first information, which includes L bits, where L is a positive integer, 1≤L≤4, and the TPMI in the TPMI group corresponding to the bit is an 8-port 1-layer partially coherent TPMI, where each antenna port group corresponds to a 2-port 1-layer codeword, or a 2-row 1-column all-zero vector; the bit values ​​carried by different bits are used to indicate whether the TPMI group corresponding to the bit is a first TPMI group, and the first TPMI group is used to enable the terminal to achieve full power transmission.

[0205] Optionally, in some embodiments, when the number of antenna port groups is 4 and the number of transmission layers is 1, each antenna port group may correspond to a 2-port 1-layer codeword, or a 2-row 1-column all-zero vector; optionally, any one of the 4 antenna port groups may correspond to a 2-port 1-layer fully coherent codeword. Based on this, in some embodiments, when the number of antenna port groups is 4 and the number of transmission layers is 1, the TPMI group indicated by the first information may include at least one of the following: {[A 0 0 0] T}, {[0 A 0 0] T}, {[0 0 A 0] T}, {[0 0 0 A] T}.

[0206] It should be noted that in some embodiments, when the number of transmission layers is 1, the "A" in the TPMI corresponding to the 2-port 1-layer codeword corresponding to any one of the 4 antenna port groups, for example, "A" can be a 2-port 1-layer fully coherent codeword. The above “0” can be a vector corresponding to the other three antenna port groups in the four antenna port groups. Optionally, the above “0” can be a vector of all zeros in 2 rows and 1 column.

[0207] Optionally, in some embodiments, when the number of transmission layers is 1, the first information may include 4 bits, wherein the first bit may correspond to the TPMI group {[A 0 0 0] T}, the second bit can correspond to the TPMI group {[0 A 0 0] T}, the third bit can correspond to the TPMI group {[0 0 A 0] T}, the fourth bit can correspond to the TPMI group {[0 0 0 A] T}, wherein the bit values ​​carried by different bits can be used to indicate whether the corresponding TPMI group is the first TPMI group. For example, when the bit value carried by the bit is the first value (such as 1), it can be said that the TPMI group corresponding to the bit is the first TPMI group. When the bit value carried by the bit is the second value (such as 0), it can be said that the TPMI group corresponding to the bit is not the first TPMI group.

[0208] Optionally, referring to the above content, when the number of antenna port groups is 4 and the number of transmission layers is 1, in the TPMI group indicated by the first information, the first mapping method corresponding to different TPMIs in the same TPMI group is the same, and the first mapping method can be: a mapping method between ports and transmission layers. Optionally, in some embodiments, when the element value corresponding to a certain antenna port in a certain transmission layer is non-zero, it can be understood that the antenna port is mapped to the transmission layer. For example, for the TPMI group {[A 0 0 0] T}, the first layer is mapped to the first antenna port group, for TPMI group {[0 A 0 0] T}, the first layer is mapped to the second antenna port group.

[0209] Optionally, in some embodiments, when the number of antenna port groups is 4 and the number of transmission layers is 2, the first information may include F bits, where F is a positive integer, 1≤F≤10, and different bits correspond to different TPMI groups. The TPMI in the TPMI group corresponding to the bit is an 8-port 2-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port codeword, a 2-row all-zero vector, or a 2-row all-zero matrix; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0210] Optionally, in some embodiments, when the number of antenna port groups is 4 and the number of transmission layers is 2, the TPMI group indicated by the first information may include at least one of the following 10 TPMI groups: {[A 0 0 0] T}, {[0 A 0 0] T}, {[0 0 A 0] T}, {[0 0 0 A] T}, {[B8;B9] T , where B8 = [A1 0 0 0] T , B9=[0 A2 0 0] T}, {[B8; B10] T , where B10 = [0 0 A2 0]}, {[B8; B11] T , where B11=[0 0 0 A2]}, {[B9;B10]T}, {[B9;B11] T}, {[B10; B11] T}.

[0211] It should be noted that in some embodiments, when the number of transmission layers is 2, the "A" in the TPMI corresponding to the 2-port 2-layer codeword corresponding to any one of the 4 antenna port groups, for example, "A" can be a 2-port 2-layer fully coherent codeword. The above “0” may be the vectors corresponding to the other three antenna port groups in the four antenna port groups. T}, {[0 A 0 0] T}, {[0 0 A 0] T}, {[0 0 0 A] T The "0" in} can be a 2-row, 2-column all-zero matrix

[0212] Optionally, when the number of transmission layers is 2, A1 and A2 in the corresponding TPMI can be 2-port 2-layer codewords corresponding to any 2 antenna port groups in the 4 antenna port groups. For example, A1 and A2 can be 2-port 1-layer fully coherent codewords. Optionally, the above {[B8; B9] T}, {[B8; B10] T}, {[B8;B11] T}, {[B9; B10] T}, {[B9;B11] T}, {[B10; B11] T The "0" in} can be a 2-row, 1-column all-zero vector

[0213] Optionally, in some embodiments, when the number of transmission layers is 2, the first information may include 10 bits, and the 10 bits may correspond to the above-mentioned 10 TPMI groups respectively. The bit values ​​carried by different bits may be used to indicate whether the corresponding TPMI group is the first TPMI group. For example, when the bit value carried by the bit is a first value (such as 1), it can be indicated that the TPMI group corresponding to the bit is the first TPMI group. When the bit value carried by the bit is a second value (such as 0), it can be indicated that the TPMI group corresponding to the bit is not the first TPMI group.

[0214] Optionally, referring to the above content, when the number of antenna port groups is 4 and the number of transmission layers is 2, in the TPMI group indicated by the first information, the first mapping method corresponding to different TPMIs in the same TPMI group is the same, and the first mapping method can be: a mapping method between ports and transmission layers. Optionally, in some embodiments, when the element value corresponding to a certain antenna port in a certain transmission layer is non-zero, it can be understood that the transmission layer is mapped to the antenna port. For example, for the TPMI group {[B9; B10] T For example, the first layer is mapped to the second antenna port group, and the second layer is mapped to the third antenna port group.

[0215] Optionally, when the number of antenna port groups is 4 and the number of transmission layers is 3, the first information may include H bits, where H is a positive integer, 1≤H≤10, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port 3-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port codeword, a 2-row all-zero vector, or a 2-row all-zero matrix; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0216] Optionally, in some embodiments, when the number of antenna port groups is 4 and the number of transmission layers is 3, the TPMI group indicated by the first information may include at least one of the following 10 TPMI groups: {[B8; B10] T}, {[B8;B11] T}, {[B9; B10] T}, {[B9;B11] T}, {[B10; B11] T}, {[B8; B9; B12] T , where B12=[0 0 A3 0]}, {[B8;B9;B13] T , where B13=[0 0 0 A3]}, {[B8;B10;B13] T}, {[B9; B10; B13] T}.

[0217] It should be noted that in some embodiments, A1 and A2 in the TPMI with a transmission layer number of 3 can be 2-port codewords corresponding to any 2 antenna port groups in the 4 antenna port groups. Optionally, A1 can be a 2-port 1-layer codeword, and A2 can be a 2-port 2-layer codeword. For example, A1 can be a 2-port 1-layer fully coherent codeword. A2 can be a 2-port 2-layer fully coherent codeword Alternatively, A1 can be a 2-port 2-layer codeword, and A2 can be a 2-port 1-layer codeword. For example, A1 can be a 2-port 2-layer fully coherent codeword. A2 can be 2-port 1-layer fully coherent codeword The "0" in the TPMI with a transmission layer number of 3 can be the vectors corresponding to the other antenna port groups in the 4 antenna port groups. T}, {[B8;B11] T}, {[B9; B10] T}, {[B9;B11] T}, {[B10; B11] T}, the "0" in can be a 2-row all-zero vector or a 2-row all-zero matrix. Optionally, the dimension of the 0 in the same column as A1 is the same as the dimension of A1, and the dimension of the 0 in the same column as A2 is the same as the dimension of A2. For example, assuming that A1 is a 2-port 1-layer codeword and A2 is a 2-port 2-layer codeword, the "0" in the same column as A1 is a 2-row 1-column all-zero vector The "0" in the same column as A2 is a 2-row, 2-column all-zero matrix

[0218] Optionally, the above TPMI group {[B8; B9; B12] T}, {[B8; B9; B13] T}, {[B8; B10; B13] T}, {[B9; B10; B13] T "A1", "A2", and "A3" in} are all 2-port 1-layer codewords, for example, they can all be 2-port 1-layer fully coherent codewords. The above TPMI group {[B8; B9; B12] T}, {[B8; B9; B13] T}, {[B8; B10; B13] T}, {[B9; B10; B13] T The "0" in} is a vector of all zeros with 2 rows and 1 column.

[0219] Optionally, referring to the above content, the above TPMI group {[B8; B9; B12] T}, {[B8; B9; B13] T}, {[B8; B10; B13] T}, {[B9; B10; B13] T}, different TPMIs in the same TPMI group correspond to the same first mapping mode, which can be: a mapping mode between a port and a transport layer. Optionally, in some embodiments, when the element value corresponding to a certain antenna port in a certain transport layer is non-zero, it can be understood that the transport layer is mapped to the antenna port. For example, for the TPMI group {[B8; B9; B12] T For example, the first antenna port group is mapped to the first layer, the second layer is mapped to the second antenna port group, and the third layer is mapped to the third antenna port group.

[0220] Optionally, in some embodiments, the first information may include 10 bits, and the 10 bits may correspond to the above-mentioned 10 TPMI groups respectively. The bit values ​​carried by different bits may be used to indicate whether the corresponding TPMI group is the first TPMI group. For example, when the bit value carried by the bit is a first value (such as 1), it can be indicated that the TPMI group corresponding to the bit is the first TPMI group. When the bit value carried by the bit is a second value (such as 0), it can be indicated that the TPMI group corresponding to the bit is not the first TPMI group.

[0221] Optionally, in some embodiments, the terminal may send the above-mentioned first information to the network device, and the network device may receive the first information.

[0222] Step 2302: The network device selects a target TPMI from at least one first TPMI indicated by the first information.

[0223] Step 2303: The network device sends second information to the terminal.

[0224] Step 2304: The terminal sends an uplink channel and / or an uplink signal based on the target TPMI.

[0225] For further detailed description of steps 2302 - 2304 , please refer to the above embodiment description.

[0226] The communication method involved in the embodiments of the present disclosure may include at least one of steps S2301 to S2304. For example, step S2301 may be implemented as an independent embodiment, step S2302 may be implemented as an independent embodiment, step S2303 may be implemented as an independent embodiment, and steps S2301+S2302 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0227] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0228] FIG2D is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2D , the embodiment of the present disclosure relates to a communication method for use in a communication system 100, the method comprising:

[0229] Step 2401: The terminal sends first information, where the first information includes G bits, where G is a positive integer, 1≤G≤2, and different bits correspond to different TPMI groups.

[0230] Optionally, in the embodiment of Figure 2D, the terminal may include 8 antenna ports, wherein the number of antenna port groups may be 2 (i.e., each antenna port group includes 4 antenna ports), wherein each antenna port group corresponds to a 4-port codeword, a 4-row all-zero vector, or a 4-row all-zero matrix, and any one of the 2 antenna port groups corresponds to a 4-port fully coherent codeword. Optionally, the TPMI in the TPMI group corresponding to the bit in the first information may be an 8-port partially coherent TPMI, and the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0231] Optionally, in some embodiments, a TPMI group may include at least two TPMIs, and different TPMIs in the same TPMI group may correspond to the same number of activated antenna ports.

[0232] Optionally, in some embodiments, when the number of antenna port groups is 2, each antenna port group may correspond to a 4-port codeword, or a 4-row all-zero vector, or a 4-row all-zero matrix; Optionally, in some embodiments, when the number of antenna port groups is 2, the TPMI group indicated by the first information may include at least one of the following two TPMI groups: {[A 0] T} and {[0 A] T}.

[0233] It should be noted that in some embodiments, the above-mentioned A can be a 4-port codeword corresponding to any one of the 2 antenna port groups. Optionally, A can be a 4-port 1-layer fully coherent codeword. Alternatively, A can be a 4-port 2-layer fully coherent codeword Alternatively, A can be a 4-port 3-layer fully coherent codeword Alternatively, A can be a 4-port 4-layer fully coherent codeword. Optionally, the above-mentioned "0" is a 4-row all-zero matrix or a 4-row all-zero vector corresponding to the other antenna port group in the 2 antenna port groups. Optionally, the dimension of the above-mentioned "0" is the same as the dimension of the above-mentioned "A". For example, when "A" is a 4-port 1-layer codeword, the "0" can be a 4-row 1-column all-zero vector. When "A" is a 4-port 2-layer codeword, the "0" can be a 4-row 2-column all-zero matrix. When "A" is a 4-port 3-layer codeword, the "0" can be a 4-row 3-column all-zero matrix. When "A" is a 4-port 4-layer codeword, the "0" can be a 4-row 4-column all-zero matrix.

[0234] Optionally, referring to the above content, the above TPMI group {[A 0] T} and {[0 A] T}, different TPMIs in the same TPMI group correspond to the same first mapping mode, which can be: a mapping mode between a port and a transmission layer. Optionally, in some embodiments, when the element value corresponding to a certain antenna port in a certain transmission layer is non-zero, it can be understood that the antenna port is mapped to the transmission layer. For example, for the TPMI group {[A 0] T}, the first layer is mapped to the first antenna port group.

[0235] Optionally, in some embodiments, the first information may include two bits, and the two bits may correspond to the above-mentioned two TPMI groups respectively. The bit values ​​carried by different bits may be used to indicate whether the corresponding TPMI group is the first TPMI group. For example, when the bit value carried by the bit is a first value (such as 1), it can be indicated that the TPMI group corresponding to the bit is the first TPMI group. When the bit value carried by the bit is a second value (such as 0), it can be indicated that the TPMI group corresponding to the bit is not the first TPMI group.

[0236] Optionally, in some embodiments, the terminal may send the above-mentioned first information to the network device, and the network device may receive the first information.

[0237] Step 2402: The network device selects a target TPMI from at least one first TPMI indicated by the first information.

[0238] Step 2403: The network device indicates the target TPMI to the terminal.

[0239] Step 2404: The terminal sends an uplink channel and / or an uplink signal based on the target TPMI.

[0240] For further detailed description of steps 2402 - 2404 , please refer to the above embodiment description.

[0241] The communication method involved in the embodiments of the present disclosure may include at least one of steps S2401 to S2406. For example, step S2401 may be implemented as an independent embodiment, step S2402 may be implemented as an independent embodiment, step S2403 may be implemented as an independent embodiment, and steps S2401+S2402 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0242] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0243] FIG2E is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2E , the embodiment of the present disclosure relates to a communication method for use in a communication system 100, the method comprising:

[0244] Step 2501: The terminal determines first information based on the coherent capability of the terminal.

[0245] Optionally, the first information can be used to indicate at least one first TPMI, or the first information can be used to indicate at least one first TPMI group, wherein a TPMI group includes at least two TPMIs, and different TPMIs in the same TPMI group correspond to the same number of activated antenna ports; the first TPMI and the first TPMI group are used to enable the terminal to send uplink channels and / or uplink signals at full power.

[0246] Optionally, the first TPMI indicated by the first information or the TPMI in the first TPMI group indicated by the first information can be an 8-port partially coherent TPMI (i.e., the TPMI described in Figures 2C and 2D above), or an 8-port incoherent TPMI (i.e., the TPMI described in Figures 2A and 2B above). When the coherence capabilities of the terminals are different, the TPMI indicated by the first information determined by the terminals is also different. Optionally, when the terminal is a fully coherent terminal or a partially coherent terminal, the first TPMI indicated by the first information or the TPMI in the first TPMI group indicated by the first information can be an 8-port partially coherent TPMI or an 8-port incoherent TPMI; when the terminal is an incoherent terminal, the first TPMI indicated by the first information or the TPMI in the first TPMI group indicated by the first information can be an 8-port incoherent TPMI.

[0247] Step 2502: The terminal sends the first information.

[0248] Step 2503: The network device determines a target TPMI from the TPMI indicated by the first information.

[0249] Step 2504: The network device sends second information, where the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information.

[0250] Step 2505: The terminal transmits the uplink channel and / or uplink signal at full power based on the target TPMI indicated by the second information.

[0251] For further detailed description of steps 2502-2505, please refer to the above embodiment description.

[0252] The communication method involved in the embodiments of the present disclosure may include at least one of steps S2501 to S2505. For example, step S2501 may be implemented as an independent embodiment, step S2502 may be implemented as an independent embodiment, step S2503 may be implemented as an independent embodiment, and steps S2501+S2502 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0253] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0254] FIG3A is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3A , the embodiment of the present disclosure relates to a communication method for terminal 101, the method comprising:

[0255] Step 3101: The terminal sends first information, where the first information includes N bits, where N is a positive integer, 1≤N≤7, and different bits correspond to different numbers of transmission layers.

[0256] Step 3102: The terminal receives second information sent by the network device, where the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information.

[0257] Step 3103: The terminal sends an uplink channel and / or an uplink signal based on the target TPMI.

[0258] For a detailed description of steps 3101 - 3103 , please refer to the above embodiment description.

[0259] The communication method involved in the embodiments of the present disclosure may include at least one of steps S3101 to S3103. For example, step S3101 may be implemented as an independent embodiment, step S3102 may be implemented as an independent embodiment, and steps S3101+S3102 may be implemented as independent embodiments, but are not limited thereto.

[0260] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0261] FIG3B is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3B , the embodiment of the present disclosure relates to a communication method for terminal 101, the method comprising:

[0262] Step 3201: The terminal sends first information, where the first information includes M bits, where M is a positive integer, 1≤M≤254, and the M bits correspond to all or part of the TPMI corresponding to the number of transmission layers 1 to 7.

[0263] Step 3202: The terminal receives second information sent by the network device, where the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information.

[0264] Step 3203: The terminal sends an uplink channel and / or an uplink signal based on the target TPMI.

[0265] For a detailed description of steps 3201 - 3203 , please refer to the above embodiment description.

[0266] The communication method involved in the embodiment of the present disclosure may include at least one of steps S3201 to S3203. For example, step S3201 may be implemented as an independent embodiment, and step S3202 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0267] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0268] FIG3C is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3C , the embodiment of the present disclosure relates to a communication method for terminal 101, the method comprising:

[0269] Step 3301: The terminal sends first information, where the first information includes a bit map, and different bits in the first information correspond to different TPMI groups.

[0270] Step 3302: The terminal receives second information sent by the network device, where the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information.

[0271] Step 3303: The terminal sends an uplink channel and / or an uplink signal based on the target TPMI.

[0272] For a detailed description of steps 3301 - 3303 , please refer to the above embodiment description.

[0273] The communication method involved in the embodiments of the present disclosure may include at least one of steps S3301 to S3303. For example, step S3301 may be implemented as an independent embodiment, step S3302 may be implemented as an independent embodiment, and steps S3301+S3302 may be implemented as independent embodiments, but are not limited thereto.

[0274] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0275] FIG3D is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3D , the embodiment of the present disclosure relates to a communication method for terminal 101, the method comprising:

[0276] Step 3401: The terminal sends first information, where the first information includes G bits, where G is a positive integer, 1≤G≤2, and different bits correspond to different TPMI groups.

[0277] Step 3402: The terminal receives second information sent by the network device, where the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information.

[0278] Step 3403: The terminal sends an uplink channel and / or an uplink signal based on the target TPMI.

[0279] For a detailed description of steps 3401-3403, please refer to the above embodiment description.

[0280] The communication method involved in the embodiment of the present disclosure may include at least one of steps S3401 to S3403. For example, step S3401 may be implemented as an independent embodiment, and step S3402 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0281] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0282] FIG3E is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3E , the present disclosure embodiment relates to a communication method for terminal 101, the method comprising:

[0283] Step 3501: The terminal sends first information based on the number of antenna port groups.

[0284] Step 3502: The terminal receives second information, where the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information.

[0285] Step 3503: Send uplink channels and / or uplink signals at full power based on the target TPMI.

[0286] Optionally, the first information is used to indicate at least one first transmission precoding matrix indicating TPMI, or the first information is used to indicate at least one first TPMI group, wherein a TPMI group includes at least two TPMIs, and different TPMIs in the same TPMI group correspond to the same number of activated antenna ports; the first TPMI and the first TPMI group are used to enable the terminal to achieve full power transmission.

[0287] Optionally, the terminal is a fully coherent terminal or a partially coherent terminal, and the first TPMI indicated by the first information or the TPMI in the first TPMI group indicated by the first information is an 8-port partially coherent TPMI or an 8-port incoherent TPMI;

[0288] The terminal is a non-coherent terminal, and the first TPMI indicated by the first information or the TPMI in the first TPMI group indicated by the first information is an 8-port non-coherent TPMI.

[0289] Optionally, the first information includes a bitmap, each bit in the bitmap corresponds to a TPMI, and a bit value carried by a bit in the bitmap is used to indicate whether the TPMI corresponding to the bit is the first TPMI;

[0290] Alternatively, each bit in the bitmap corresponds to a TPMI group, and the bit value carried by the bit in the bitmap is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0291] Optionally, the terminal includes 8 antenna ports.

[0292] Optionally, when the number of antenna port groups is 8, the number of transmission layers is greater than or equal to 1 and less than or equal to 7, and the terminal does not have the ability to dynamically switch the connection between the power amplifier PA and the antenna port, the first information includes N bits, N is a positive integer, 1≤N≤7, wherein different bits correspond to different numbers of transmission layers, and the bit values ​​carried by different bits are used to indicate whether any TPMI corresponding to the number of transmission layers corresponding to the bit is the first TPMI; wherein each number of transmission layers corresponds to at least one TPMI.

[0293] Optionally, the bit values ​​carried by different bits are used to indicate whether the first TPMI corresponding to the transmission layer number corresponding to the bit is the first TPMI.

[0294] Optionally, when the number of antenna port groups is 8, the number of transmission layers is greater than or equal to 1 and less than or equal to 7, and the terminal has the ability to dynamically switch the PA and antenna port connection, the first information includes M bits, M is a positive integer, 1≤M≤254, and the M bits correspond to all or part of the TPMI corresponding to the number of transmission layers 1 to 7, wherein one bit corresponds to one TPMI, and the bit value carried by different bits is used to indicate whether the TPMI corresponding to the bit is the first TPMI.

[0295] Optionally, the TPMI corresponding to the bit is an 8-port non-coherent TPMI.

[0296] Optionally, when the number of antenna port groups is 4 and the number of transmission layers is 1, the first information includes L bits, where L is a positive integer, 1≤L≤4, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port 1-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port 1-layer codeword, or a 2-row 1-column all-zero vector; any one of the 4 antenna port groups corresponds to a 2-port 1-layer fully coherent codeword; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0297] Optionally, when the number of antenna port groups is 4 and the number of transmission layers is 2, the first information includes F bits, where F is a positive integer, 1≤F≤10, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port 2-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port codeword, a 2-row all-zero vector, or a 2-row all-zero matrix; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0298] Optionally, each antenna port group corresponds to a 2-port 2-layer codeword and a 2-row 2-column all-zero matrix, and any one of the four antenna port groups corresponds to a 2-port 2-layer fully coherent codeword; or

[0299] Each antenna port group corresponds to a 2-port 1-layer codeword and a 2-row 1-column all-zero vector, and any two antenna port groups among the four antenna port groups correspond to a 2-port 1-layer fully coherent codeword.

[0300] Optionally, when the number of antenna port groups is 4 and the number of transmission layers is 3, the first information includes H bits, where H is a positive integer, 1≤H≤10, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port 3-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port codeword, a 2-row all-zero vector, or a 2-row all-zero matrix; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0301] Optionally, some of the four antenna port groups correspond to 2-port 1-layer codewords, or 2 rows and 1 column all-zero vectors, and the other part of the four antenna port groups correspond to 2-port 2-layer codewords, or 2 rows and 2 columns of all-zero matrices; wherein any one of the four antenna port groups corresponds to a 2-port 1-layer fully coherent codeword, and any one of the four antenna port groups corresponds to a 2-port 2-layer fully coherent codeword; or

[0302] Each antenna port group corresponds to a 2-port 1-layer codeword, or a 2-row 1-column all-zero vector, and any three antenna port groups among the four antenna port groups correspond to a 2-port 1-layer fully coherent codeword.

[0303] Optionally, when the number of antenna port groups is 2, the first information includes G bits, where G is a positive integer, 1≤G≤2, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port partially coherent TPMI, wherein each antenna port group corresponds to a 4-port codeword, a 4-row all-zero vector, or a 4-row all-zero matrix, and any one of the 2 antenna port groups corresponds to a 4-port fully coherent codeword; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0304] Optionally, each antenna port group corresponds to a 4-port 1-layer codeword or a 4-row 1-column all-zero vector; or, each antenna port group corresponds to a 4-port S-layer codeword or a 4-row S-column all-zero matrix, where S=2, 3 or 4.

[0305] For a detailed description of steps 3501-3504, please refer to the above embodiment.

[0306] The communication method involved in the embodiment of the present disclosure may include at least one of steps S3501 to S3503. For example, step S3501 may be implemented as an independent embodiment, and step S3502 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0307] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0308] FIG4A is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG4A , the embodiment of the present disclosure relates to a communication method for a network device 102, the method comprising:

[0309] Step 4101: The network device receives first information sent by the terminal, where the first information includes N bits, where N is a positive integer, 1≤N≤7, and different bits correspond to different numbers of transmission layers.

[0310] Step 4102: The network device selects a target TPMI from at least one first TPMI indicated by the first information.

[0311] Step 4103: The network device sends second information to the target TPMI. The second information is used to indicate the target TPMI.

[0312] Step 4104: The network device receives an uplink channel and / or an uplink signal sent by the terminal based on the target TPMI.

[0313] For a detailed description of steps 4101-4104, please refer to the above embodiment.

[0314] The communication method involved in the embodiment of the present disclosure may include at least one of steps S4101 to S4104. For example, step S4101 may be implemented as an independent embodiment, and step S4102 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0315] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0316] FIG4B is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG4B , the embodiment of the present disclosure relates to a communication method for a network device 102, the method comprising:

[0317] Step 4201: The network device receives first information sent by a terminal. The first information includes M bits, where M is a positive integer, 1≤M≤254, and the M bits correspond to all or part of the TPMI corresponding to the transport layers 1 to 7.

[0318] Step 4202: The network device selects a target TPMI from at least one first TPMI indicated by the first information.

[0319] Step 4203: The network device sends second information to the terminal, where the second information is used to indicate the target TPMI.

[0320] Step 4204: The network device receives an uplink channel and / or an uplink signal sent by the terminal based on the target TPMI.

[0321] For a detailed description of steps 4201-4204, please refer to the above embodiment.

[0322] The communication method involved in the embodiment of the present disclosure may include at least one of steps S4201 to S4204. For example, step S4201 may be implemented as an independent embodiment, and step S4202 may be implemented as an independent embodiment, but the present invention is not limited thereto.

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

[0324] FIG4C is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG4C , the present disclosure embodiment relates to a communication method for a network device 102, the method comprising:

[0325] Step 4301: A network device receives first information sent by a terminal. The first information includes a bit map. Different bits in the first information correspond to different TPMI groups.

[0326] Step 4302: The network device selects a target TPMI from at least one first TPMI group indicated by the first information.

[0327] Step 4303: The network device sends second information to the terminal, where the second information is used to indicate the target TPMI.

[0328] Step 4304: The network device receives an uplink channel and / or an uplink signal sent by the terminal based on the target TPMI.

[0329] For a detailed description of steps 4301 - 4304 , please refer to the above embodiment.

[0330] The communication method involved in the embodiment of the present disclosure may include at least one of steps S4301 to S4304. For example, step S4301 may be implemented as an independent embodiment, and step S4302 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0331] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0332] FIG4D is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG4D , the embodiment of the present disclosure relates to a communication method for a network device 102, the method comprising:

[0333] Step 4401: The network device receives first information sent by a terminal. The first information includes G bits, where G is a positive integer, 1≤G≤2, and different bits correspond to different TPMI groups.

[0334] Step 4402: The network device selects a target TPMI from at least one first TPMI indicated by the first information.

[0335] Step 4403: The network device sends second information to the terminal, where the second information is used to indicate the target TPMI.

[0336] Step 4404: The network device receives an uplink channel and / or an uplink signal sent by the terminal based on the target TPMI.

[0337] For a detailed description of steps 4401-4404, please refer to the above embodiment.

[0338] The communication method involved in the embodiment of the present disclosure may include at least one of steps S4401 to S4404. For example, step S4401 may be implemented as an independent embodiment, and step S4402 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0339] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0340] FIG4E is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG4E , the embodiment of the present disclosure relates to a communication method for a network device 102, the method comprising:

[0341] Step 4501: The network device receives the first information sent by the terminal.

[0342] Step 4502: The network device sends second information to the terminal, where the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information.

[0343] Step 4503: The network device receives an uplink channel and / or an uplink signal sent by the terminal based on the target TPMI.

[0344] Optionally, the first information is used to indicate at least one first TPMI, or the first information is used to indicate at least one first TPMI group, wherein a TPMI group includes at least two TPMIs, and different TPMIs in the same TPMI group correspond to the same number of activated antenna ports; the first TPMI and the first TPMI group are used to enable the terminal to achieve full power transmission.

[0345] Optionally, the terminal is a fully coherent terminal or a partially coherent terminal, and the first TPMI indicated by the first information or the TPMI in the first TPMI group indicated by the first information is an 8-port partially coherent TPMI or an 8-port incoherent TPMI;

[0346] The terminal is a non-coherent terminal, and the first TPMI indicated by the first information or the TPMI in the first TPMI group indicated by the first information is an 8-port non-coherent TPMI.

[0347] Optionally, the first information includes a bitmap, each bit in the bitmap corresponds to a TPMI, and a bit value carried by a bit in the bitmap is used to indicate whether the TPMI corresponding to the bit is the first TPMI;

[0348] Alternatively, each bit in the bitmap corresponds to a TPMI group, and the bit value carried by the bit in the bitmap is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0349] Optionally, the terminal includes 8 antenna ports.

[0350] Optionally, when the number of antenna port groups is 8, the number of transmission layers is greater than or equal to 1 and less than or equal to 7, and the terminal does not have the ability to dynamically switch the PA and antenna port connection, the first information includes N bits, N is a positive integer, 1≤N≤7, wherein different bits correspond to different numbers of transmission layers, and the bit values ​​carried by different bits are used to indicate whether any TPMI corresponding to the number of transmission layers corresponding to the bit is the first TPMI; wherein each number of transmission layers corresponds to at least one TPMI.

[0351] Optionally, the bit values ​​carried by different bits are used to indicate whether the first TPMI corresponding to the transmission layer number corresponding to the bit is the first TPMI.

[0352] Optionally, when the number of antenna port groups is 8, the number of transmission layers is greater than or equal to 1 and less than or equal to 7, and the terminal has the ability to dynamically switch the PA and antenna port connection, the first information includes M bits, M is a positive integer, 1≤M≤254, and the M bits correspond to all or part of the TPMI corresponding to the number of transmission layers 1 to 7, wherein one bit corresponds to one TPMI, and the bit value carried by different bits is used to indicate whether the TPMI corresponding to the bit is the first TPMI.

[0353] Optionally, the TPMI corresponding to the bit is an 8-port non-coherent TPMI.

[0354] Optionally, when the number of antenna port groups is 4 and the number of transmission layers is 1, the first information includes L bits, where L is a positive integer, 1≤L≤4, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port 1-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port 1-layer codeword, or a 2-row 1-column all-zero vector; any one of the 4 antenna port groups corresponds to a 2-port 1-layer fully coherent codeword; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0355] Optionally, when the number of antenna port groups is 4 and the number of transmission layers is 2, the first information includes F bits, where F is a positive integer, 1≤F≤10, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port 2-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port codeword, a 2-row all-zero vector, or a 2-row all-zero matrix; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0356] Optionally, each antenna port group corresponds to a 2-port 2-layer codeword and a 2-row 2-column all-zero matrix, and any one of the four antenna port groups corresponds to a 2-port 2-layer fully coherent codeword; or

[0357] Each antenna port group corresponds to a 2-port 1-layer codeword and a 2-row 1-column all-zero vector, and any two antenna port groups among the four antenna port groups correspond to a 2-port 1-layer fully coherent codeword.

[0358] Optionally, when the number of antenna port groups is 4 and the number of transmission layers is 3, the first information includes H bits, where H is a positive integer, 1≤H≤10, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port 3-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port codeword, a 2-row all-zero vector, or a 2-row all-zero matrix; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0359] Optionally, some of the four antenna port groups correspond to 2-port 1-layer codewords, or 2 rows and 1 column all-zero vectors, and the other part of the four antenna port groups correspond to 2-port 2-layer codewords, or 2 rows and 2 columns of all-zero matrices; wherein any one of the four antenna port groups corresponds to a 2-port 1-layer fully coherent codeword, and any one of the four antenna port groups corresponds to a 2-port 2-layer fully coherent codeword; or

[0360] Each antenna port group corresponds to a 2-port 1-layer codeword, or a 2-row 1-column all-zero vector, and any three antenna port groups among the four antenna port groups correspond to a 2-port 1-layer fully coherent codeword.

[0361] Optionally, when the number of antenna port groups is 2, the first information includes G bits, where G is a positive integer, 1≤G≤2, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port partially coherent TPMI, wherein each antenna port group corresponds to a 4-port codeword, a 4-row all-zero vector, or a 4-row all-zero matrix, and any one of the 2 antenna port groups corresponds to a 4-port fully coherent codeword; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

[0362] Optionally, each antenna port group corresponds to a 4-port 1-layer codeword or a 4-row 1-column all-zero vector; or, each antenna port group corresponds to a 4-port S-layer codeword or a 4-row S-column all-zero matrix, where S=2, 3 or 4.

[0363] For a detailed introduction to step 4601, please refer to the content of the above embodiment.

[0364] The communication method involved in the embodiment of the present disclosure may include at least one of steps S4601 to S4604. For example, step S4601 may be implemented as an independent embodiment, and step S4602 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0365] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0366] Figure 5 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 5, the embodiment of the present disclosure relates to a communication method for a communication system including a terminal and a network device. The method includes at least one of the following:

[0367] Step 5101: The terminal sends first information based on the number of antenna port groups, where the first information is used to indicate at least one first transmission precoding matrix indication TPMI, or the first information is used to indicate at least one first TPMI group, where a TPMI group includes at least two TPMIs, and different TPMIs in the same TPMI group correspond to the same number of activated antenna ports; the first TPMI and the first TPMI group are used to enable the terminal to achieve full power transmission;

[0368] Step 5102: The network device receives the first information.

[0369] Step 5103: The network device sends second information to the terminal, where the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information.

[0370] Step 5104: The terminal receives the second information.

[0371] Step 5105: The terminal sends an uplink channel and / or an uplink signal at full power based on the target TPMI.

[0372] Optional implementations of steps 5101 to 5105 can be found in the above embodiments.

[0373] In some embodiments, the above method may include the method described in the above embodiments of the communication system side, terminal side, network device side, etc., which will not be repeated here.

[0374] The communication method involved in the embodiment of the present disclosure may include at least one of steps S5101 to S5104. For example, step S5101 may be implemented as an independent embodiment, and step S5102 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0375] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0376] The following is an exemplary introduction to the above method.

[0377] When full power mode 2 is configured, the UE (i.e. the terminal mentioned above) reports the TPMI or TPMI group that supports full power transmission through a bitmap according to the PA architecture. When the bit is 1, it indicates that the corresponding TPMI or TPMI group can achieve full power transmission. When the bit is 0, it indicates that the corresponding TPMI or TPMI group cannot achieve full power transmission.

[0378] Ng=8 non-coherent UEs

[0379] When the terminal does not have the ability to dynamically switch the PA and antenna port connection, when the number of transmission layers is 1<=rank<=7, only the codeword with the smallest TPMI in the codebook corresponding to each rank is supported, that is, TPMI=0, 8, 36, 92, 162, 218, 246, a total of 7 TPMIs, and the bitmap length is 7, as shown in Table 1 below

[0380] When the terminal has the ability to dynamically switch PA and antenna port connections, and the number of transmission layers is 1<=rank<=7, it supports reporting all codewords in the codebook corresponding to each rank, that is, TPMI=0,1,…,253, a total of 254 TPMIs, and the length of the bitmap is 254.

[0381] Ng = 4 partially coherent UEs

[0382] When the transport layer rank is 1, it supports reporting 4 TPMI groups, namely The matrix A is any R15 uplink 2-port 1-layer fully coherent codeword, with a total of 4 TPMI groups, and the bitmap length is 4 bits.

[0383] When the transport layer rank is 2, 10 TPMI groups can be reported, namely The matrix A is any R15 uplink 2-port 2-layer fully coherent codeword, A1 and A2 are any R15 uplink 2-port 1-layer fully coherent codewords, a total of 10 TPMI groups, and the bitmap length is 10 bits.

[0384] When the number of transport layer ranks is 3, it supports reporting 10 TPMI groups, namely The matrices A1 and A2 are any R15 uplink 2-port 1-layer or 2-layer fully coherent codewords and the total number of layers is 3. The matrices A1, A2, and A3 are any R15 uplink 2-port 1-layer fully coherent codewords, with a total of 10 TPMI groups, and the bitmap length is 10 bits.

[0385] Ng = 2 partially coherent UEs

[0386] Supports reporting of two TPMI groups, namely and The matrix A is any R15 uplink 4-port 1-4 layer fully coherent codeword, with a total of 2 TPMI groups, and the bitmap length is 2 bits.

[0387] Table 1 A TPMI group definition method for Ng=8 non-coherent terminals

[0388] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0389] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0390] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0391] FIG6A is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure. As shown in FIG6A , it includes:

[0392] A sending module, configured to send first information based on the number of antenna port groups, where the first information is used to indicate at least one first transmission precoding matrix indication TPMI, or the first information is used to indicate at least one first TPMI group, wherein a TPMI group includes at least two TPMIs, and different TPMIs in the same TPMI group correspond to the same number of activated antenna ports; the first TPMI and the first TPMI group are used to enable the terminal to send an uplink channel and / or an uplink signal at full power;

[0393] a receiving module, configured to receive second information, where the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information;

[0394] The sending module is further configured to send an uplink channel and / or an uplink signal at full power based on the target TPMI.

[0395] Optionally, the sending module is used to execute the steps related to "sending" performed by the terminal 101 in any of the above methods. The receiving module is used to execute the steps related to receiving performed by the terminal 101 in any of the above methods. Optionally, the terminal further includes a processing module, and the processing module is used to execute the steps related to "processing" performed by the terminal 101 in any of the above methods, which will not be repeated here.

[0396] FIG6B is a schematic diagram of the structure of the network device proposed in an embodiment of the present disclosure. As shown in FIG6B , it includes:

[0397] A receiving module, configured to receive first information sent by a terminal, where the first information is used to indicate at least one first TPMI, or the first information is used to indicate at least one first TPMI group, wherein a TPMI group includes at least two TPMIs, and different TPMIs in the same TPMI group correspond to the same number of activated antenna ports; the first TPMI and the first TPMI group are used to enable the terminal to transmit an uplink channel and / or an uplink signal at full power;

[0398] a sending module, configured to send second information to the terminal, where the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information;

[0399] The receiving module is configured to receive an uplink channel and / or an uplink signal sent by the terminal based on the target TPMI.

[0400] Optionally, the receiving module is used to execute the steps related to "receiving" performed by the network device 102 in any of the above methods, and the sending module is used to execute the steps related to sending performed by the network device 102 in any of the above methods, which are not described in detail here. Optionally, the network device further includes a processing module, and the processing module is used to execute the steps related to processing performed by the network device 102 in any of the above methods, which are not described in detail here.

[0401] Figure 7A is a schematic diagram of the structure of a communication device 7100 proposed in an embodiment of the present disclosure. Communication device 7100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 7100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0402] As shown in Figure 7A, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The processor 7101 is used to call instructions to enable the communication device 7100 to perform any of the above methods.

[0403] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may be located outside the communication device 7100.

[0404] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the communication steps such as sending and receiving in the above method are performed by the transceiver 7103, and the other steps are performed by the processor 7101.

[0405] In some embodiments, a transceiver may include a receiver and a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0406] Optionally, the communication device 7100 further includes one or more interface circuits 7104, which are connected to the memory 7102. The interface circuits 7104 may be configured to receive signals from the memory 7102 or other devices, and may be configured to send signals to the memory 7102 or other devices. For example, the interface circuits 7104 may read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0407] The communication device 7100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0408] 7B is a schematic diagram of the structure of a chip 7200 proposed in an embodiment of the present disclosure. If the communication device 7100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 7200 shown in FIG7B , but the present disclosure is not limited thereto.

[0409] The chip 7200 includes one or more processors 7201 , and the processor 7201 is used to call instructions so that the chip 7200 executes any of the above methods.

[0410] In some embodiments, chip 7200 further includes one or more interface circuits 7202, which are connected to memory 7203. Interface circuit 7202 can be used to receive signals from memory 7203 or other devices, and can be used to send signals to memory 7203 or other devices. For example, interface circuit 7202 can read instructions stored in memory 7203 and send the instructions to processor 7201. Optionally, the terms interface circuit, interface, transceiver pin, and transceiver are interchangeable.

[0411] In some embodiments, the chip 7200 further includes one or more memories 7203 for storing instructions. Alternatively, all or part of the memories 7203 may be located outside the chip 7200.

[0412] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 7100, the communication device 7100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.

[0413] The present disclosure also provides a program product, which, when executed by the communication device 7100, enables the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0414] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

[0415] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented using software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0416] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0417] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0418] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: The method comprises: The terminal sends first information based on the number of antenna port groups, where the first information is used to indicate at least one first transmission precoding matrix indicating TPMI, or the first information is used to indicate at least one first TPMI group, wherein a TPMI group includes at least two TPMIs, and different TPMIs in the same TPMI group correspond to the same number of activated antenna ports; the first TPMI and the first TPMI group are used to enable the terminal to send an uplink channel and / or an uplink signal at full power; The terminal receives second information, where the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information; The uplink channel and / or uplink signal is sent at full power based on the target TPMI.

2. The method according to claim 1, characterized in that The terminal is a fully coherent terminal or a partially coherent terminal, and the first TPMI indicated by the first information or the TPMI in the first TPMI group indicated by the first information is an 8-port partially coherent TPMI or an 8-port incoherent TPMI; The terminal is a non-coherent terminal, and the first TPMI indicated by the first information or the TPMI in the first TPMI group indicated by the first information is an 8-port non-coherent TPMI.

3. The method according to claim 1 or 2, characterized in that The first information includes a bitmap, each bit in the bitmap corresponds to a TPMI, and a bit value carried by a bit in the bitmap is used to indicate whether the TPMI corresponding to the bit is the first TPMI; Alternatively, each bit in the bitmap corresponds to a TPMI group, and the bit value carried by the bit in the bitmap is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

4. The method according to any one of claims 1 to 3, characterized in that: When the terminal includes 8 antenna ports, the number of antenna port groups is 8, the number of transmission layers is greater than or equal to 1 and less than or equal to 7, and the terminal does not have the ability to dynamically switch the connection between the power amplifier PA and the antenna port, the first information includes N bits, N is a positive integer, 1≤N≤7, wherein different bits correspond to different numbers of transmission layers, and the bit values ​​carried by different bits are used to indicate whether any TPMI corresponding to the number of transmission layers corresponding to the bit is the first TPMI; wherein each number of transmission layers corresponds to at least one TPMI.

5. The method according to claim 4, characterized in that The bit values ​​carried by different bits are used to indicate whether the first TPMI corresponding to the transmission layer number corresponding to the bit is the first TPMI.

6. The method according to any one of claims 1 to 3, characterized in that: When the terminal includes 8 antenna ports, the number of antenna port groups is 8, the number of transmission layers is greater than or equal to 1 and the number of transmission layers is less than or equal to 7, and the terminal has the ability to dynamically switch the PA and antenna port connection, the first information includes M bits, M is a positive integer, 1≤M≤254, and the M bits correspond to all or part of the TPMI corresponding to the number of transmission layers from 1 to 7, wherein one bit corresponds to one TPMI, and the bit values ​​carried by different bits are used to indicate whether the TPMI corresponding to the bit is the first TPMI.

7. The method according to any one of claims 4 to 6, characterized in that: The TPMI corresponding to the bit is an 8-port non-coherent TPMI.

8. The method according to any one of claims 1 to 3, characterized in that: The terminal includes 8 antenna ports, the number of antenna port groups is 4, and when the number of transmission layers is 1, the first information includes L bits, L is a positive integer, 1≤L≤4, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port 1-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port 1-layer codeword, or a 2-row 1-column all-zero vector; any one of the 4 antenna port groups corresponds to a 2-port 1-layer fully coherent codeword; the bit values ​​carried by different bits are used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

9. The method according to any one of claims 1 to 3, characterized in that: The terminal includes 8 antenna ports, the number of antenna port groups is 4, and the number of transmission layers is 2. The first information includes F bits, F is a positive integer, 1≤F≤10, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port 2-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port codeword, a 2-row all-zero vector, or a 2-row all-zero matrix; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

10. The method according to claim 9, characterized in that Each antenna port group corresponds to a 2-port 2-layer codeword and a 2-row 2-column all-zero matrix, and any one of the 4 antenna port groups corresponds to a 2-port 2-layer fully coherent codeword; or Each antenna port group corresponds to a 2-port 1-layer codeword, a 2-row 1-column all-zero vector, and any two antenna port groups in the 4 antenna port groups The port group corresponds to 2-port 1-layer fully coherent codeword.

11. The method according to any one of claims 1 to 3, characterized in that: The terminal includes 8 antenna ports, the number of antenna port groups is 4, and the number of transmission layers is 3. The first information includes H bits, H is a positive integer, 1≤H≤10, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port 3-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port codeword, a 2-row all-zero vector, or a 2-row all-zero matrix; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

12. The method according to claim 11, characterized in that Some of the four antenna port groups correspond to 2-port 1-layer codewords, or 2 rows and 1 column all-zero vectors, and other parts of the four antenna port groups correspond to 2-port 2-layer codewords, or 2 rows and 2 columns of all-zero matrices; wherein any one of the four antenna port groups corresponds to a 2-port 1-layer fully coherent codeword, and any one of the four antenna port groups corresponds to a 2-port 2-layer fully coherent codeword; or Each antenna port group corresponds to a 2-port 1-layer codeword, or a 2-row 1-column all-zero vector, and any three antenna port groups among the four antenna port groups correspond to a 2-port 1-layer fully coherent codeword.

13. The method according to any one of claims 1 to 3, characterized in that: The terminal includes 8 antenna ports. When the number of antenna port groups is 2, the first information includes G bits, where G is a positive integer, 1≤G≤2, and different bits correspond to different TPMI groups. The TPMI in the TPMI group corresponding to the bit is an 8-port partially coherent TPMI, wherein each antenna port group corresponds to a 4-port codeword, a 4-row all-zero vector, or a 4-row all-zero matrix, and any one of the 2 antenna port groups corresponds to a 4-port fully coherent codeword; the bit values ​​carried by different bits are used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

14. The method according to claim 13, characterized in that Each of the antenna port groups corresponds to a 4-port 1-layer codeword or a 4-row 1-column all-zero vector; or, each of the antenna port groups corresponds to a 4-port S-layer codeword or a 4-row S-column all-zero matrix, S=2, 3 or 4.

15. A communication method, characterized in that: The method comprises: The network device receives first information sent by the terminal, where the first information is used to indicate at least one first TPMI, or the first information is used to indicate at least one first TPMI group, wherein a TPMI group includes at least two TPMIs, and different TPMIs in the same TPMI group correspond to the same number of activated antenna ports; the first TPMI and the first TPMI group are used to enable the terminal to send an uplink channel and / or an uplink signal at full power; The network device sends second information to the terminal, where the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information; The network device receives an uplink channel and / or an uplink signal sent by the terminal based on the target TPMI.

16. The method according to claim 15, characterized in that The terminal is a fully coherent terminal or a partially coherent terminal, and the first TPMI indicated by the first information or the TPMI in the first TPMI group indicated by the first information is an 8-port partially coherent TPMI or an 8-port incoherent TPMI; The terminal is a non-coherent terminal, and the first TPMI indicated by the first information or the TPMI in the first TPMI group indicated by the first information is an 8-port non-coherent TPMI.

17. The method according to claim 15 or 16, characterized in that The first information includes a bitmap, each bit in the bitmap corresponds to a TPMI, and a bit value carried by a bit in the bitmap is used to indicate whether the TPMI corresponding to the bit is the first TPMI; Alternatively, each bit in the bitmap corresponds to a TPMI group, and the bit value carried by the bit in the bitmap is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

18. The method according to any one of claims 15 to 17, characterized in that: When the terminal includes 8 antenna ports, the number of antenna port groups is 8, the number of transmission layers is greater than or equal to 1 and less than or equal to 7, and the terminal does not have the ability to dynamically switch the PA and antenna port connection, the first information includes N bits, N is a positive integer, 1≤N≤7, wherein different bits correspond to different numbers of transmission layers, and the bit values ​​carried by different bits are used to indicate whether any TPMI corresponding to the number of transmission layers corresponding to the bit is the first TPMI; wherein each number of transmission layers corresponds to at least one TPMI.

19. The method according to claim 18, characterized in that The bit values ​​carried by different bits are used to indicate whether the first TPMI corresponding to the transmission layer number corresponding to the bit is the first TPMI.

20. The method according to any one of claims 15 to 17, characterized in that: When the terminal includes 8 antenna ports, the number of antenna port groups is 8, the number of transmission layers is greater than or equal to 1 and less than or equal to 7, and the terminal has the ability to dynamically switch the PA and antenna port connection, the first information includes M bits, M is a positive integer, 1≤M≤254, and the M bits correspond to all or part of the TPMI corresponding to the number of transmission layers 1 to 7, wherein one bit corresponds to one TPMI, and the bit values ​​carried by different bits are used to indicate whether the TPMI corresponding to the bit is the first TPMI.

21. The method according to any one of claims 18 to 20, characterized in that: The TPMI corresponding to the bit is an 8-port non-coherent TPMI.

22. The method according to any one of claims 15 to 17, characterized in that: The terminal includes 8 antenna ports, the number of antenna port groups is 4, and when the number of transmission layers is 1, the first information includes L bits, L is a positive integer, 1≤L≤4, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port 1-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port 1-layer codeword, or a 2-row 1-column all-zero vector; any one of the 4 antenna port groups corresponds to a 2-port 1-layer fully coherent codeword; the bit values ​​carried by different bits are used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

23. The method of claim 17, wherein: When the number of antenna port groups is 4 and the number of transmission layers is 2, the first information includes F bits, where F is a positive integer, 1≤F≤10, and different bits correspond to different TPMI groups. The TPMI in the TPMI group corresponding to the bit is an 8-port 2-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port codeword, a 2-row all-zero vector, or a 2-row all-zero matrix; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

24. The method of claim 23, wherein: Each antenna port group corresponds to a 2-port 2-layer codeword and a 2-row 2-column all-zero matrix, and any one of the 4 antenna port groups corresponds to a 2-port 2-layer fully coherent codeword; or Each antenna port group corresponds to a 2-port 1-layer codeword and a 2-row 1-column all-zero vector, and any two antenna port groups among the four antenna port groups correspond to a 2-port 1-layer fully coherent codeword.

25. The method according to any one of claims 15 to 17, characterized in that: The terminal includes 8 antenna ports, the number of antenna port groups is 4, and the number of transmission layers is 3. The first information includes H bits, H is a positive integer, 1≤H≤10, different bits correspond to different TPMI groups, and the TPMI in the TPMI group corresponding to the bit is an 8-port 3-layer partially coherent TPMI, wherein each antenna port group corresponds to a 2-port codeword, a 2-row all-zero vector, or a 2-row all-zero matrix; the bit value carried by different bits is used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

26. The method of claim 25, wherein: Some of the four antenna port groups correspond to 2-port 1-layer codewords, or 2 rows and 1 column all-zero vectors, and other parts of the four antenna port groups correspond to 2-port 2-layer codewords, or 2 rows and 2 columns of all-zero matrices; wherein any one of the four antenna port groups corresponds to a 2-port 1-layer fully coherent codeword, and any one of the four antenna port groups corresponds to a 2-port 2-layer fully coherent codeword; or Each antenna port group corresponds to a 2-port 1-layer codeword, or a 2-row 1-column all-zero vector, and any three antenna port groups among the four antenna port groups correspond to a 2-port 1-layer fully coherent codeword.

27. The method according to any one of claims 15 to 17, characterized in that: The terminal includes 8 antenna ports. When the number of antenna port groups is 2, the first information includes G bits, where G is a positive integer, 1≤G≤2, and different bits correspond to different TPMI groups. The TPMI in the TPMI group corresponding to the bit is an 8-port partially coherent TPMI, wherein each antenna port group corresponds to a 4-port codeword, a 4-row all-zero vector, or a 4-row all-zero matrix, and any one of the 2 antenna port groups corresponds to a 4-port fully coherent codeword; the bit values ​​carried by different bits are used to indicate whether the TPMI group corresponding to the bit is the first TPMI group.

28. The method of claim 27, wherein: Each of the antenna port groups corresponds to a 4-port 1-layer codeword or a 4-row 1-column all-zero vector; or, each of the antenna port groups corresponds to a 4-port S-layer codeword or a 4-row S-column all-zero matrix, S=2, 3 or 4.

29. A communication method, characterized in that: Used in a communication system, the communication system includes a network device and a terminal, and the method includes at least one of the following: The terminal sends first information based on the number of antenna port groups, where the first information is used to indicate at least one first transmission precoding matrix indicating TPMI, or the first information is used to indicate at least one first TPMI group, where a TPMI group includes at least two TPMIs, The number of activated antenna ports corresponding to different TPMIs in the same TPMI group is the same; the first TPMI and the first TPMI group are used to enable the terminal to send an uplink channel and / or an uplink signal at full power; The network device receives the first information; The network device sends second information, where the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information; The terminal receives the second information; The terminal sends the uplink channel and / or uplink signal at full power based on the target TPMI.

30. A terminal, comprising: A sending module, configured to send first information based on the number of antenna port groups, wherein the first information is used to indicate at least one first transmission precoding matrix indicating TPMI, or the first information is used to indicate at least one first TPMI group, wherein a TPMI group includes at least two TPMIs, and different TPMIs in the same TPMI group correspond to the same number of activated antenna ports; the first TPMI and the first TPMI group are used to enable the terminal to send an uplink channel and / or an uplink signal at full power; A receiving module, configured to receive second information, where the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information; The sending module is further configured to send an uplink channel and / or an uplink signal at full power based on the target TPMI.

31. A network device comprising: A receiving module, configured to receive first information sent by a terminal, wherein the first information is used to indicate at least one first TPMI, or the first information is used to indicate at least one first TPMI group, wherein a TPMI group includes at least two TPMIs, and different TPMIs in the same TPMI group correspond to the same number of activated antenna ports; the first TPMI and the first TPMI group are used to enable the terminal to send an uplink channel and / or an uplink signal at full power; A sending module, configured to send second information to a terminal, wherein the second information is used to indicate a target TPMI, and the target TPMI is determined based on the first information; The receiving module is used to receive an uplink channel and / or an uplink signal sent by the terminal based on the target TPMI.

32. A communication device, characterized in that: include: One or more processors; The processor is used to call instructions so that the communication device executes the communication method described in any one of claims 1-14 and 15-28.

33. A communication system, characterized in that: It comprises a terminal and a network device, wherein the terminal is configured to implement the communication method according to any one of claims 1 to 14, and the network device is configured to implement the communication method according to any one of claims 15 to 28.

34. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is caused to execute the communication method according to any one of claims 1-14 and 15-28.

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