Resource configuration method and apparatus

Abstract

A resource configuration method and apparatus, relating to the field of communications. The method comprises: sending first indication information to a terminal device, the first indication information being used for indicating M reference signal resources; sending a reference signal on the M reference signal resources; and receiving CSI from the terminal device, the CSI being determined on the basis of the reference signal. Among ports corresponding to the M reference signal resources, a minimum port index is 0+C, a maximum port index is K-1+C, K is the sum of the number of ports respectively corresponding to the M reference signal resources, M is an integer greater than or equal to 2, C is a constant, and K is an integer greater than 32. By means of the described method, a network device and the terminal device can determine that the ports corresponding to the M reference signal resources correspond to the same TRP, and the M reference signal resources can support a greater number of antenna ports.

Description

Resource configuration method and device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of the People's Republic of China on September 27, 2023, with application number 202311273544.0 and invention name "A method and device for resource allocation"; this application claims priority to the Chinese patent application filed with the State Intellectual Property Office of the People's Republic of China on April 3, 2024, with application number 202410417567.2 and invention name "A method and device for resource allocation", all contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of communication technology, and in particular to a resource configuration method and device. Background Art

[0004] With the widespread adoption of fifth-generation (5G) mobile communication devices and the emergence of a wide range of new services such as extended reality (XR) and short videos, traffic demand has increased significantly. To meet this rapidly growing demand, massive multiple-input multiple-output (MIMO) technology is evolving toward larger antenna sizes, for example, from 32 antenna ports to 64 antenna ports, or even higher.

[0005] Currently, existing channel state information-reference signal (CSI-RS) resources can only support a maximum of 32 antenna ports. Therefore, for a frequency division duplex (FDD) system with a 64-antenna port antenna array, it is impossible to obtain channel state information in the complete spatial dimension, resulting in significant performance loss.

[0006] Summary of the Invention

[0007] The present application provides a resource configuration method and apparatus for configuring CSI-RS resources that support a larger number of ports.

[0008] In a first aspect, the present application provides a resource configuration method, which can be performed by a network device or a module (such as a chip) in the network device. The method includes: sending first indication information to a terminal device; the first indication information is used to indicate M reference signal resources, where the minimum port index of the ports corresponding to the M reference signal resources is 0+C, the maximum port index is K-1+C, K is the sum of the number of ports corresponding to the M reference signal resources, M is an integer greater than or equal to 2, C is a constant, and K is an integer greater than 32; sending a reference signal on the M reference signal resources and receiving CSI from the terminal device, where the CSI is determined based on the reference signal.

[0009] Through the above method, the network device can configure M reference signal resources, and the total number of ports corresponding to these reference signal resources is greater than 32. Since the minimum port index of the ports corresponding to these reference signal resources is 0+C and the maximum port index is K-1+C, it is possible to uniformly number the port indexes of the ports corresponding to these reference signal resources, rather than individually numbering the port indexes of the ports corresponding to each reference signal resource. This allows the network device to determine that the ports corresponding to the M reference signal resources correspond to the same TRP, and enables the M reference signal resources to support a larger number of antenna ports, which can be applicable to FDD systems with antenna arrays with more than 32 antenna ports.

[0010] The reference signal resource may be a CSI-RS resource or a demodulation reference signal (DMRS) resource, etc., which is not limited in this application.

[0011] In one possible design, port indexes of any two reference signal resources among the M reference signal resources are different.

[0012] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is m It is obtained according to the index of the code division multiplexing CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the number of ports corresponding to the reference signal resources with sequence number less than or equal to m, 0≤m≤M-1, and m is an integer.

[0013] In one possible design, the p m The corresponding relationship between the index of the CDM group of the reference signal resource with a sequence number of m, the index of the sequence within the CDM group of the reference signal resource with a sequence number of m, the size of the CDM group of the reference signal resource with a sequence number of m, and the number of ports corresponding to the reference signal resource with a sequence number less than or equal to m is:

[0014] Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1, N m Indicates the number of ports of the reference signal resource with sequence number m, L m represents the size of the CDM group, N is the sum of the number of ports corresponding to the reference signal resources with sequence numbers less than m. m is the number of ports corresponding to the reference signal resource with sequence number m, and j and s are integers.

[0015] By adopting the above method, the port indexes corresponding to the M reference signal resources can be determined relatively simply. However, each reference signal resource cannot constitute an independent dual-polarized antenna array, so the reuse of the reference signal resources cannot be achieved.

[0016] In a possible design, the number of ports corresponding to the M reference signal resources is N, K=M*N, and N is a positive integer.

[0017] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is m According to the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m and the value of N, 0≤m≤M-1, m is an integer.

[0018] In one possible design, the p m The corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the value of N is: m =C+s+jL m +mN

[0019] Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1, L m represents the size of the CDM group, j and s are integers.

[0020] By adopting the above method, when the number of ports corresponding to the M reference signal resources is the same, the port index corresponding to the M reference signal resources can be determined more easily. However, each reference signal resource cannot form an independent dual-polarized antenna array, so the reference signal resource cannot be reused.

[0021] In one possible design, the p m The corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the value of N is: m =C+(s+jL m )M+m

[0022] Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1, L m represents the size of the CDM group, j and s are integers.

[0023] Therefore, the port corresponding to each reference signal resource can correspond to an array, which is a uniform dual-polarization array, and then the port corresponding to a single reference signal resource can also be used for separate quantization reporting, thereby realizing the reuse of reference signal resources. In other words, each of the M reference signal resources can be used as a separate measurement resource for terminal devices that do not support channel measurement of more than 32 ports. Taking into account that in actual deployment, due to different measurement capabilities of terminal devices, there are some terminal devices that only support reference signal resources of no more than 32 ports. Therefore, the above method can realize the reuse of reference signal resources and reduce the overhead of reference signal resources. Using the above method, the formula of the port index is simple, easy to implement, and can realize the reuse of reference signal resources.

[0024] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is m The port group corresponding to each reference signal resource is obtained according to the number of ports n1 in the first dimension in one polarization direction, the number of ports n2 in the second dimension in one polarization direction corresponding to the port group of each reference signal resource, and the position of the port group corresponding to the reference signal resource with serial number m in the port groups corresponding to the M reference signal resources.

[0025] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is mObtained according to the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, the value of N, the number of ports n1 of the port group corresponding to each reference signal resource in a first dimension in one polarization direction, the number of ports n2 of the port group corresponding to each reference signal resource in a second dimension in one polarization direction, the sequence number of the port group corresponding to the reference signal resource with sequence number m in the first dimension, and the sequence number of the port group corresponding to the reference signal resource with sequence number m in the second dimension, wherein 0≤m≤M-1, m is an integer, K=2M*n1*n2, the port groups corresponding to the M reference signal resources respectively have the same number of ports in the first dimension, and the port groups corresponding to the M reference signal resources respectively have the same number of ports in the second dimension.

[0026] Using the above approach, each reference signal resource corresponds to a dual-polarization array. Therefore, for a single reference signal resource, the existing codebook can be used for quantization feedback. In other words, a single reference signal resource can be used for independent quantization reporting, thereby enabling reference signal resource reuse. Therefore, each of the M reference signal resources can be used as a separate measurement resource for terminal devices that do not support channel measurement with more than 32 ports. Considering that in actual deployments, due to different measurement capabilities of terminal devices, some terminal devices may only support reference signal resources with no more than 32 ports. Therefore, the above approach can achieve reference signal resource reuse and reduce reference signal resource overhead.

[0027] In one possible design, the port index p corresponding to the reference signal resource numbered m is m Determine by the following formula A or formula B:

[0028] Formula A:

[0029] Formula B:

[0030] Where j represents the index of the CDM group, s represents the index of the sequence within the CDM group, 0≤s≤L m -1, L m Indicates the size of the CDM group of the reference signal resource with sequence number m, N m represents the number of ports of the reference signal resource with sequence number m, N1 and N2 are the number of ports in the first dimension in one polarization direction and the number of ports in the second dimension in one polarization direction, respectively, h m represents the sequence number of the port group corresponding to the reference signal resource with sequence number m on the first dimension, vm represents the sequence number of the port group corresponding to the reference signal resource with sequence number m on the second dimension, n1 represents the number of ports in the first dimension of the port group corresponding to each reference signal resource in one polarization direction, n2 represents the number of ports in the second dimension of the port group corresponding to each reference signal resource in one polarization direction, j, s, L m 、h m 、v m , n1, n2 are integers, Indicates rounding down, and % indicates remainder operation.

[0031] In one possible design, N1=n1 or N2=n2.

[0032] In one possible design, when N1=n1 and / or N2=n2, K, N1, N2, n1, and n2 satisfy one or more of the following corresponding relationships:

[0033] When K=48, N1=8, N2=3, n1=4, n2=3; or, when K=48, N1=8, N2=3, n1=8, n2=1; or, when K=48, N1=6, N2=4, n1=6, n2=2; or, when K=64, N1=16, N2=2, n1=8, n2=2; or, when K=64, N1=16, N2=2, n1=16, n2=1; or, When K=64, N1=8, N2=4, n1=4, n2=4; or, when K=64, N1=8, N2=4, n1=8, n2=2; or, when K=128, N1=16, N2=4, n1=4, n2=4; or, when K=128, N1=16, N2=4, n1=16, n2=1; or, when K=128, N1=8, N2=8, n1=8, n2=2.

[0034] In a possible design, the number of ports corresponding to the M reference signal resources is N, N m =N; and / or the sizes of the CDM groups corresponding to the M reference signal resources are both L, L m =L.

[0035] In one possible design, the M reference signal resources correspond to a total of K ports, and the ports included in the port group corresponding to each reference signal resource have a one-to-one correspondence with some of the K ports.

[0036] In one possible design, second indication information is sent to the terminal device, wherein the second indication information indicates the number of ports n1 of the port group corresponding to each reference signal resource in a first dimension in a polarization direction and / or the number of ports n2 of the port group corresponding to each reference signal resource in a second dimension in a polarization direction.

[0037] In one possible design, the serial numbers corresponding to the M reference signal resources are determined according to the identifiers corresponding to the M reference signal resources, or according to the configuration order of the M reference signal resources.

[0038] In one possible design, third indication information is sent to the terminal device, where the third indication information indicates the number of ports N1 in a first dimension in a polarization direction and / or the number of ports N2 in a second dimension in a polarization direction, where N1 and N2 are positive integers, and K=2N1*N2; the method further includes: determining the ports corresponding to the M reference signal resources and the corresponding port indexes based on the number of ports N1 in the first dimension in a polarization direction, the number of ports N2 in the second dimension in a polarization direction, and the polarization direction.

[0039] In a second aspect, the present application provides a resource configuration method, which can be performed by a terminal device or a module (such as a chip) in the terminal device. The method includes: receiving first indication information from a network device; the first indication information is used to indicate M reference signal resources, among the ports corresponding to the M reference signal resources, the minimum port index is 0+C, the maximum port index is K-1+C, K is the sum of the number of ports corresponding to the M reference signal resources, M is an integer greater than or equal to 2, C is a constant, and K is an integer greater than 32; receiving a reference signal on the M reference signal resources and sending CSI to the network device, where the CSI is determined based on the reference signal.

[0040] Through the above method, the terminal device receives the reference signal based on the M reference signal resources configured by the network device. Since the minimum port index among the ports corresponding to these reference signal resources is 0+C and the maximum port index is K-1+C, the terminal device determines that the ports corresponding to the M reference signal resources correspond to the same TRP. The terminal device performs quantized reporting for the channel of a TRP and only needs to report one CSI. Compared with the CJT scheme, the terminal device needs to feedback M CSIs for quantized reporting for the channels of M TRPs, which can save feedback overhead.

[0041] In one possible design, port indexes of any two reference signal resources among the M reference signal resources are different.

[0042] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is m It is obtained according to the index of the code division multiplexing CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the number of ports corresponding to the reference signal resources with sequence number less than or equal to m, 0≤m≤M-1, and m is an integer.

[0043] In one possible design, the p m The corresponding relationship between the index of the CDM group of the reference signal resource with a sequence number of m, the index of the sequence within the CDM group of the reference signal resource with a sequence number of m, the size of the CDM group of the reference signal resource with a sequence number of m, and the number of ports corresponding to the reference signal resource with a sequence number less than or equal to m is:

[0044] Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1, N m Indicates the number of ports of the reference signal resource with sequence number m, L m represents the size of the CDM group, N is the sum of the number of ports corresponding to the reference signal resources with sequence numbers less than m. m is the number of ports corresponding to the reference signal resource with sequence number m, and j and s are integers.

[0045] In a possible design, the number of ports corresponding to the M reference signal resources is N, K=M*N, and N is a positive integer.

[0046] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is m According to the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m and the value of N, 0≤m≤M-1, m is an integer.

[0047] In one possible design, the p m The corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the value of N is: m =C+s+jL m +mN

[0048] Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1, L m represents the size of the CDM group, j and s are integers.

[0049] In one possible design, the p m The corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the value of N is: m =C+(s+jL m )M+m

[0050] Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1, L m represents the size of the CDM group, j and s are integers.

[0051] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is m The port group corresponding to each reference signal resource is obtained according to the number of ports n1 in the first dimension in one polarization direction, the number of ports n2 in the second dimension in one polarization direction corresponding to the port group of each reference signal resource, and the position of the port group corresponding to the reference signal resource with serial number m in the port groups corresponding to the M reference signal resources.

[0052] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is m Obtained according to the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, the value of N, the number of ports n1 of the port group corresponding to each reference signal resource in a first dimension in one polarization direction, the number of ports n2 of the port group corresponding to each reference signal resource in a second dimension in one polarization direction, the sequence number of the port group corresponding to the reference signal resource with sequence number m in the first dimension, and the sequence number of the port group corresponding to the reference signal resource with sequence number m in the second dimension, wherein 0≤m≤M-1, m is an integer, K=2M*n1*n2, the port groups corresponding to the M reference signal resources respectively have the same number of ports in the first dimension, and the port groups corresponding to the M reference signal resources respectively have the same number of ports in the second dimension.

[0053] In one possible design, the port index p corresponding to the reference signal resource numbered m is m Determine by the following formula A or formula B:

[0054] Formula A:

[0055] Formula B:

[0056] Where j represents the index of the CDM group, s represents the index of the sequence within the CDM group, 0≤s≤L m -1, L m Indicates the size of the CDM group of the reference signal resource with sequence number m, N m represents the number of ports of the reference signal resource with sequence number m, N1 and N2 are the number of ports in the first dimension in one polarization direction and the number of ports in the second dimension in one polarization direction, respectively, h m represents the sequence number of the port group corresponding to the reference signal resource with sequence number m on the first dimension, v m represents the sequence number of the port group corresponding to the reference signal resource with sequence number m on the second dimension, n1 represents the number of ports in the first dimension of the port group corresponding to each reference signal resource in one polarization direction, n2 represents the number of ports in the second dimension of the port group corresponding to each reference signal resource in one polarization direction, j, s, L m 、h m 、v m , n1, n2 are integers, Indicates rounding down, and % indicates remainder operation.

[0057] In one possible design, N1=n1 or N2=n2.

[0058] In one possible design, when the number of ports N1 in the first dimension is the same as the number of ports n1 of the port group corresponding to each reference signal resource in the first dimension, and / or the number of ports N2 in the second dimension is the same as the number of ports n2 of the port group corresponding to each reference signal resource in the second dimension, K, N1, N2, n1, and n2 satisfy one or more of the following corresponding relationships:

[0059] When K=48, N1=8, N2=3, n1=4, n2=3; or, when K=48, N1=8, N2=3, n1=8, n2=1; or, when K=48, N1=6, N2=4, n1=6, n2=2; or, when K=64, N1=16, N2=2, n1=8, n2=2; or, when K=64, N1=16, N2=2, n1=16, n2=1; or, When K=64, N1=8, N2=4, n1=4, n2=4; or, when K=64, N1=8, N2=4, n1=8, n2=2; or, when K=128, N1=16, N2=4, n1=4, n2=4; or, when K=128, N1=16, N2=4, n1=16, n2=1; or, when K=128, N1=8, N2=8, n1=8, n2=2.

[0060] In a possible design, the number of ports corresponding to the M reference signal resources is N, N m =N; and / or the sizes of the CDM groups corresponding to the M reference signal resources are both L, L m =L.

[0061] In one possible design, the M reference signal resources correspond to a total of K ports, and the ports included in the port group corresponding to each reference signal resource have a one-to-one correspondence with some of the K ports.

[0062] In one possible design, second indication information is received from the network device, wherein the second indication information indicates the number of ports n1 of the port group corresponding to each reference signal resource in a first dimension in a polarization direction and / or the number of ports n2 of the port group corresponding to each reference signal resource in a second dimension in a polarization direction.

[0063] In one possible design, the serial numbers corresponding to the M reference signal resources are determined according to the identifiers corresponding to the M reference signal resources, or according to the configuration order of the M reference signal resources.

[0064] In one possible design, third indication information is received from the network device, where the third indication information indicates the number of ports N1 in a first dimension in a polarization direction and / or the number of ports N2 in a second dimension in a polarization direction, where N1 and N2 are positive integers, and K=2N1*N2; and the ports corresponding to the M reference signal resources and corresponding port indexes are determined based on the number of ports N1 in the first dimension in a polarization direction, the number of ports N2 in the second dimension in a polarization direction, and the polarization direction.

[0065] In a third aspect, the present application provides a resource configuration device, which includes a transceiver unit and a processing unit. The processing unit is used to determine first indication information; the transceiver unit is used to send the first indication information to the terminal device, send a reference signal on the M reference signal resources, and receive CSI from the terminal device, where the CSI is determined based on the reference signal. The first indication information is used to indicate M reference signal resources, and among the ports corresponding to the M reference signal resources, the minimum port index is 0+C, the maximum port index is K-1+C, K is the sum of the number of ports corresponding to the M reference signal resources, M is an integer greater than or equal to 2, C is a constant, and K is an integer greater than 32.

[0066] In one possible design, port indexes of any two reference signal resources among the M reference signal resources are different.

[0067] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is m It is obtained according to the index of the code division multiplexing CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the number of ports corresponding to the reference signal resources with sequence number less than or equal to m, 0≤m≤M-1, and m is an integer.

[0068] In one possible design, the p m The corresponding relationship between the index of the CDM group of the reference signal resource with a sequence number of m, the index of the sequence within the CDM group of the reference signal resource with a sequence number of m, the size of the CDM group of the reference signal resource with a sequence number of m, and the number of ports corresponding to the reference signal resource with a sequence number less than or equal to m is:

[0069] Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1, N m Indicates the number of ports of the reference signal resource with sequence number m, L m represents the size of the CDM group, N is the sum of the number of ports corresponding to the reference signal resources with sequence numbers less than m. m is the number of ports corresponding to the reference signal resource with sequence number m, and j and s are integers.

[0070] In a possible design, the number of ports corresponding to the M reference signal resources is N, K=M*N, and N is a positive integer.

[0071] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is m According to the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m and the value of N, 0≤m≤M-1, m is an integer.

[0072] In one possible design, the p m The corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the value of N is: m =C+s+jL m +mN

[0073] Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1, L m represents the size of the CDM group, j and s are integers.

[0074] In one possible design, the p m The corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the value of N is: m =C+(s+jL m )M+m

[0075] Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1, L m represents the size of the CDM group, j and s are integers.

[0076] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is m The port group corresponding to each reference signal resource is obtained according to the number of ports n1 in the first dimension in one polarization direction, the number of ports n2 in the second dimension in one polarization direction corresponding to the port group of each reference signal resource, and the position of the port group corresponding to the reference signal resource with serial number m in the port groups corresponding to the M reference signal resources.

[0077] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is mObtained according to the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, the value of N, the number of ports n1 of the port group corresponding to each reference signal resource in the first dimension, the number of ports n2 of the port group corresponding to each reference signal resource in one polarization direction in the second dimension, the sequence number of the port group corresponding to the reference signal resource with sequence number m in one polarization direction in the first dimension, and the sequence number of the port group corresponding to the reference signal resource with sequence number m in the second dimension, wherein 0≤m≤M-1, m is an integer, K=2M*n1*n2, the port groups corresponding to the M reference signal resources respectively have the same number of ports in the first dimension, and the port groups corresponding to the M reference signal resources respectively have the same number of ports in the second dimension.

[0078] In one possible design, the port index p corresponding to the reference signal resource numbered m is m Determine by the following formula A or formula B:

[0079] Formula A:

[0080] Formula B:

[0081] Where j represents the index of the CDM group, s represents the index of the sequence within the CDM group, 0≤s≤L m -1, L m Indicates the size of the CDM group of the reference signal resource with sequence number m, N m represents the number of ports of the reference signal resource with sequence number m, N1 and N2 are the number of ports in the first dimension in one polarization direction and the number of ports in the second dimension in one polarization direction, respectively, h m represents the sequence number of the port group corresponding to the reference signal resource with sequence number m on the first dimension, v m represents the sequence number of the port group corresponding to the reference signal resource with sequence number m on the second dimension, n1 represents the number of ports in the first dimension of the port group corresponding to each reference signal resource in one polarization direction, n2 represents the number of ports in the second dimension of the port group corresponding to each reference signal resource in one polarization direction, j, s, L m 、h m 、v m , n1, n2 are integers, Indicates rounding down, and % indicates remainder operation.

[0082] In one possible design, N1=n1 or N2=n2.

[0083] In one possible design, when N1=n1 and / or N2=n2, K, N1, N2, n1, and n2 satisfy one or more of the following corresponding relationships:

[0084] When K=48, N1=8, N2=3, n1=4, n2=3; or, when K=48, N1=8, N2=3, n1=8, n2=1; or, when K=48, N1=6, N2=4, n1=6, n2=2; or, when K=64, N1=16, N2=2, n1=8, n2=2; or, when K=64, N1=16, N2=2, n1=16, n2=1; or, When K=64, N1=8, N2=4, n1=4, n2=4; or, when K=64, N1=8, N2=4, n1=8, n2=2; or, when K=128, N1=16, N2=4, n1=4, n2=4; or, when K=128, N1=16, N2=4, n1=16, n2=1; or, when K=128, N1=8, N2=8, n1=8, n2=2.

[0085] In a possible design, the number of ports corresponding to the M reference signal resources is N, N m =N; and / or the sizes of the CDM groups corresponding to the M reference signal resources are both L, L m =L.

[0086] In one possible design, the M reference signal resources correspond to a total of K ports, and the ports included in the port group corresponding to each reference signal resource have a one-to-one correspondence with some of the K ports.

[0087] In one possible design, the transceiver unit is used to send second indication information to the terminal device, wherein the second indication information indicates the number of ports n1 of the port group corresponding to each reference signal resource in a first dimension in a polarization direction and / or the number of ports n2 of the port group corresponding to each reference signal resource in a second dimension in a polarization direction.

[0088] In one possible design, the serial numbers corresponding to the M reference signal resources are determined according to the identifiers corresponding to the M reference signal resources, or according to the configuration order of the M reference signal resources.

[0089] In one possible design, the transceiver unit is used to send third indication information to the terminal device, where the third indication information indicates the number of ports N1 in the first dimension in one polarization direction and / or the number of ports N2 in the second dimension in one polarization direction, where N1 and N2 are positive integers, and K=2N1*N2; the processing unit is used to determine the ports corresponding to the M reference signal resources and the corresponding port indexes based on the number of ports N1 in the first dimension in one polarization direction, the number of ports N2 in the second dimension in one polarization direction, and the polarization direction.

[0090] In a fourth aspect, the present application provides a resource configuration device, which includes a transceiver unit and a processing unit. The transceiver unit is used to receive first indication information from a network device and receive a reference signal on the M reference signal resources; the processing unit is used to determine CSI, and the CSI is determined based on the reference signal; the transceiver unit is used to send the CSI to the network device. The first indication information is used to indicate M reference signal resources, and among the ports corresponding to the M reference signal resources, the minimum port index is 0+C, the maximum port index is K-1+C, K is the sum of the number of ports corresponding to the M reference signal resources, M is an integer greater than or equal to 2, C is a constant, and K is an integer greater than 32;

[0091] In one possible design, port indexes of any two reference signal resources among the M reference signal resources are different.

[0092] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is m It is obtained according to the index of the code division multiplexing CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the number of ports corresponding to the reference signal resources with sequence number less than or equal to m, 0≤m≤M-1, and m is an integer.

[0093] In one possible design, the p m The corresponding relationship between the index of the CDM group of the reference signal resource with a sequence number of m, the index of the sequence within the CDM group of the reference signal resource with a sequence number of m, the size of the CDM group of the reference signal resource with a sequence number of m, and the number of ports corresponding to the reference signal resource with a sequence number less than or equal to m is:

[0094] Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1, N mIndicates the number of ports of the reference signal resource with sequence number m, L m represents the size of the CDM group, N is the sum of the number of ports corresponding to the reference signal resources with sequence numbers less than m. m is the number of ports corresponding to the reference signal resource with sequence number m, and j and s are integers.

[0095] In a possible design, the number of ports corresponding to the M reference signal resources is N, K=M*N, and N is a positive integer.

[0096] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is m According to the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m and the value of N, 0≤m≤M-1, m is an integer.

[0097] In one possible design, the p m The corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the value of N is: m =C+s+jL m +mN

[0098] Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1, L m represents the size of the CDM group, j and s are integers.

[0099] In one possible design, the p m The corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the value of N is: m =C+(s+jL m )M+m

[0100] Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1, L m represents the size of the CDM group, j and s are integers.

[0101] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is m The port group corresponding to each reference signal resource is obtained according to the number of ports n1 in the first dimension in one polarization direction, the number of ports n2 in the second dimension in one polarization direction corresponding to the port group of each reference signal resource, and the position of the port group corresponding to the reference signal resource with serial number m in the port groups corresponding to the M reference signal resources.

[0102] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is m Obtained according to the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, the value of N, the number of ports n1 of the port group corresponding to each reference signal resource in a first dimension in one polarization direction, the number of ports n2 of the port group corresponding to each reference signal resource in a second dimension in one polarization direction, the sequence number of the port group corresponding to the reference signal resource with sequence number m in the first dimension, and the sequence number of the port group corresponding to the reference signal resource with sequence number m in the second dimension, wherein 0≤m≤M-1, m is an integer, K=2M*n1*n2, the port groups corresponding to the M reference signal resources respectively have the same number of ports in the first dimension, and the port groups corresponding to the M reference signal resources respectively have the same number of ports in the second dimension.

[0103] In one possible design, the port index p corresponding to the reference signal resource numbered m is m Determine by the following formula A or formula B:

[0104] Formula A:

[0105] Formula B:

[0106] Where j represents the index of the CDM group, s represents the index of the sequence within the CDM group, 0≤s≤L m -1, L m Indicates the size of the CDM group of the reference signal resource with sequence number m, N m represents the number of ports of the reference signal resource with sequence number m, N1 and N2 are the number of ports in the first dimension in one polarization direction and the number of ports in the second dimension in one polarization direction, respectively, h m represents the sequence number of the port group corresponding to the reference signal resource with sequence number m on the first dimension, v mrepresents the sequence number of the port group corresponding to the reference signal resource with sequence number m on the second dimension, n1 represents the number of ports in the first dimension of the port group corresponding to each reference signal resource in one polarization direction, n2 represents the number of ports in the second dimension of the port group corresponding to each reference signal resource in one polarization direction, j, s, L m 、h m 、v m , n1, n2 are integers, Indicates rounding down, and % indicates remainder operation.

[0107] In one possible design, N1=n1 or N2=n2.

[0108] In one possible design, when N1=n1 and / or N2=n2, K, N1, N2, n1, and n2 satisfy one or more of the following corresponding relationships:

[0109] When K=48, N1=8, N2=3, n1=4, n2=3; or, when K=48, N1=8, N2=3, n1=8, n2=1; or, when K=48, N1=6, N2=4, n1=6, n2=2; or, when K=64, N1=16, N2=2, n1=8, n2=2; or, when K=64, N1=16, N2=2, n1=16, n2=1; or, When K=64, N1=8, N2=4, n1=4, n2=4; or, when K=64, N1=8, N2=4, n1=8, n2=2; or, when K=128, N1=16, N2=4, n1=4, n2=4; or, when K=128, N1=16, N2=4, n1=16, n2=1; or, when K=128, N1=8, N2=8, n1=8, n2=2.

[0110] In a possible design, the number of ports corresponding to the M reference signal resources is N, N m =N; and / or the sizes of the CDM groups corresponding to the M reference signal resources are both L, L m =L.

[0111] In one possible design, the M reference signal resources correspond to a total of K ports, and the ports included in the port group corresponding to each reference signal resource have a one-to-one correspondence with some of the K ports.

[0112] In one possible design, the transceiver unit is used to receive second indication information from the network device, wherein the second indication information indicates the number of ports n1 of the port group corresponding to each reference signal resource in a first dimension in a polarization direction and / or the number of ports n2 of the port group corresponding to each reference signal resource in a second dimension in a polarization direction.

[0113] In one possible design, the serial numbers corresponding to the M reference signal resources are determined according to the identifiers corresponding to the M reference signal resources, or according to the configuration order of the M reference signal resources.

[0114] In one possible design, the transceiver unit is used to receive third indication information from the network device, where the third indication information indicates the number of ports N1 in a first dimension in a polarization direction and / or the number of ports N2 in a second dimension in a polarization direction, where N1 and N2 are positive integers, and K=2N1*N2; the processing unit is used to determine the ports corresponding to the M reference signal resources and the corresponding port indexes based on the number of ports N1 in the first dimension in a polarization direction, the number of ports N2 in the second dimension in a polarization direction, and the polarization direction.

[0115] In a fifth aspect, the present application provides a communication device, which can be applied to a terminal device or a network device, and the device includes a unit for executing any of the methods described in any of the above aspects.

[0116] In a sixth aspect, the present application provides a communication device comprising at least one processing element and at least one storage element, wherein the at least one storage element is used to store programs and data, and the at least one processing element is used to read and execute the programs and data stored in the storage element, so that any method described in any one of the above aspects of the present application is implemented.

[0117] In a seventh aspect, the present application further provides a computer program, which, when executed on a computer, enables the computer to execute any of the methods described in any of the above aspects.

[0118] In an eighth aspect, the present application provides a communication device, comprising: an interface circuit; the interface circuit is used to provide input and / or output of programs or instructions to at least one processor; the at least one processor is used to execute the program or instructions so that the communication device can implement any of the methods described in any of the above aspects.

[0119] In one possible manner, the communication device includes the at least one memory, and the at least one memory is used to store the program or instruction.

[0120] In a ninth aspect, the present application provides a computer storage medium storing a software program. When the software program is read and executed by one or more processors, the software program can implement any of the methods described in any of the above aspects.

[0121] In a tenth aspect, the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute any of the methods described in any of the above aspects.

[0122] In the eleventh aspect, a chip system is provided, which includes at least one chip and a memory, and the at least one chip is used to read and execute the program stored in the memory to implement any of the methods described in any of the above aspects.

[0123] In the twelfth aspect, a communication system is provided, the system comprising at least one terminal device and a network device, the terminal device executes any one of the methods described in the second aspect, and the network device executes any one of the methods described in the first aspect.

[0124] Based on the implementations provided in the above aspects, this application can also be further combined to provide more implementations. BRIEF DESCRIPTION OF THE DRAWINGS

[0125] FIG1 is a schematic diagram of the architecture of a mobile communication system used in an embodiment of the present application;

[0126] FIG2A is a schematic diagram of CDM2 in this application;

[0127] FIG2B is a schematic diagram of CDM4 in this application;

[0128] FIG2C is a schematic diagram of CDM8 in this application;

[0129] FIG3 is a schematic diagram of the arrangement of ports corresponding to the CSI-RS resources currently supporting 32 ports in this application;

[0130] FIG4 is a flowchart illustrating an overview of a resource configuration method in this application;

[0131] FIG5 is a schematic diagram of an arrangement of ports corresponding to four CSI-RS resources in this application;

[0132] FIG6 is a schematic diagram of another arrangement of ports corresponding to four CSI-RS resources in this application;

[0133] FIG7 is a schematic structural diagram of a communication device in this application;

[0134] FIG8 is a schematic structural diagram of another communication device in this application;

[0135] FIG9 is a schematic diagram of an arrangement of ports corresponding to reference signal resources in this application;

[0136] FIG10 is a schematic diagram of another arrangement of ports corresponding to reference signal resources in this application. DETAILED DESCRIPTION

[0137] The embodiments of the present application can be applied to various communication systems, such as: long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, world-wide interoperability for microwave access (WIMAX) communication system, fifth generation (5G) system or new radio (NR), or applied to future communication systems or other similar communication systems.

[0138] Figure 1 is a schematic diagram of the architecture of a communication system 1000 used in an embodiment of the present application. As shown in Figure 1 , the communication system includes a radio access network 100 and a core network 200. Optionally, the communication system 1000 may also include the Internet 300. The radio access network 100 may include at least one radio access network device (such as 110a and 110b in Figure 1 ) and at least one terminal device (such as 120a-120j in Figure 1 ). The terminal device is wirelessly connected to the radio access network device, and the radio access network device is wirelessly or wiredly connected to the core network. The core network device and the radio access network device may be independent and distinct physical devices, or the functions of the core network device and the logical functions of the radio access network device may be integrated into the same physical device, or a single physical device may integrate some of the functions of the core network device and some of the functions of the radio access network device. Terminal devices and radio access network devices may be connected to each other via wired or wireless connections. FIG1 is only a schematic diagram. The communication system may further include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG1 .

[0139] A radio access network device can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a fifth-generation (5G) mobile communication system, a next-generation base station in a sixth-generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a Wi-Fi system. It can also be a module or unit that performs some of the functions of a base station, such as a centralized unit (CU) or a distributed unit (DU). The CU performs the functions of the base station's radio resource control protocol and packet data convergence protocol (PDCP), as well as the service data adaptation protocol (SDAP). The DU performs the functions of the base station's radio link control layer and medium access control (MAC) layer, as well as some or all of the physical layer. For detailed descriptions of each of these protocol layers, please refer to the relevant technical specifications of the Third Generation Partnership Project (3GPP). The wireless access network device can be a macro base station (such as 110a in Figure 1), a micro base station or an indoor station (such as 110b in Figure 1), a relay node, a donor node, etc. The embodiments of this application do not limit the specific technology and device form used by the wireless access network device. For ease of description, the following description uses a network device as an example of a wireless access network device.

[0140] Terminal devices may also be referred to as terminals, user equipment (UE), mobile stations, mobile terminals, etc. Terminal devices can be widely used in various scenarios, for example, device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IOT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city, etc. Terminal devices may be mobile phones, tablet computers, computers with wireless transceiver functions, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal devices.

[0141] Network devices and terminal devices can be fixed or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons, and artificial satellites. The embodiments of this application do not limit the application scenarios of network devices and terminal devices.

[0142] The roles of network devices and terminal devices can be relative. For example, the helicopter or drone 120i in Figure 1 can be configured as a mobile network device. To terminal devices 120j accessing the wireless access network 100 via 120i, drone 120i is a network device. However, to network device 110a, 120i is a terminal device, meaning that communication between 110a and 120i occurs via a wireless air interface protocol. Of course, communication between 110a and 120i can also occur via an interface protocol between network devices. In this case, 120i is also a network device relative to 110a. Therefore, both network devices and terminal devices can be collectively referred to as communication devices. 110a and 110b in Figure 1 can be referred to as communication devices with network device functionality, while 120a-120j in Figure 1 can be referred to as communication devices with terminal device functionality.

[0143] Network devices and terminal devices, network devices and network devices, and terminal devices and terminal devices can communicate through authorized spectrum, unauthorized spectrum, or both; can communicate through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz simultaneously. The embodiments of the present application do not limit the spectrum resources used for wireless communications.

[0144] In the embodiments of the present application, the functions of the network device may also be performed by a module (such as a chip) in the network device, or by a control subsystem that includes the network device functions. The control subsystem that includes the network device functions here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, and smart city. The functions of the terminal device may also be performed by a module (such as a chip or a modem) in the terminal device, or by a device that includes the terminal device functions.

[0145] In an embodiment of the present application, a network device sends a downlink signal or downlink information to a terminal device, and the downlink information is carried on a downlink channel; the terminal device sends an uplink signal or uplink information to the network device, and the uplink information is carried on an uplink channel. In order to communicate with the network device, the terminal device needs to establish a wireless connection with the cell controlled by the network device. The cell with which the terminal device has established a wireless connection is called the serving cell of the terminal device. When the terminal device communicates with the serving cell, it will also be interfered with by signals from neighboring cells.

[0146] It can be understood that in the embodiments of the present application, the physical downlink shared channel (PDSCH), physical downlink control channel (PDCCH), physical uplink control channel (PUCCH) and physical uplink shared channel (PUSCH) are only used as examples of downlink data channels, downlink control channels, uplink control channels and uplink data channels, respectively. In different systems and different scenarios, data channels and control channels may have different names, and the embodiments of the present application do not limit this.

[0147] The following is a brief description of the basic concepts involved in this application:

[0148] (1) Reference signal

[0149] In a communication system, a pilot signal, also known as a reference signal (RS), is a signal provided by a transmitter to a receiver for channel estimation or channel detection, known to both the transmitter and the receiver. Reference signals are divided into uplink reference signals and downlink reference signals. Unless otherwise specified, the reference signal in this application is a downlink reference signal. For example, the downlink reference signal may be a CSI-RS or a demodulation reference signal (DMRS), etc., which is not limited in this application. Accordingly, the reference signal resource is a CSI-RS resource or a DMRS resource.

[0150] In the following embodiments, only the reference signal resource is described as a CSI-RS resource. Exemplarily, the CSI-RS resource includes at least one of the time-frequency resources, antenna ports, power resources, and scrambling code resources of the CSI-RS. Exemplarily, the network device can send the CSI-RS to the terminal based on the CSI-RS resource, and correspondingly, the terminal can receive the CSI-RS based on the CSI-RS resource. In the embodiments of the present application, the one or more antenna ports corresponding to the CSI-RS resource can also be understood as the one or more antenna ports included in the CSI-RS resource.

[0151] (2) Channel state information (CSI)

[0152] When a signal passes through a wireless channel from the transmitter to the receiver, it may experience scattering, reflection, or energy attenuation with distance, resulting in fading. CSI is used to characterize the characteristics of a wireless channel and may include at least one of the following: channel quality indicator (CQI), precoding matrix indicator (PMI), CSI-RS resource indicator (CRI), synchronization signal / physical broadcast channel block resource indicator (SSBRI), layer indicator (LI), rank indicator (RI), L1-reference signal received power (RSRP), and L1-signal to interference plus noise ratio (SINR). CSI can be sent by a terminal device to a network device via PUCCH or PUSCH.

[0153] In the embodiments of the present application, if there is no logical conflict, "CSI" or "CSI report (CSI report)" can be interchanged, and "report", "feedback" and "send" can be interchanged.

[0154] (3) CSI configuration

[0155] The current CSI configuration may include a CSI report configuration (CSI-ReportConfig), where CSI-ReportConfig includes channel measurement resources (resourcesForChannelMeasurement), which are used to configure CSI-RS resources for channel measurement and are associated with the CSI resource configuration (CSI-ResourceConfig) through a CSI resource configuration identifier (CSI-ResourceConfigId). For example, resourcesForChannelMeasurement may carry a CSI-ResourceConfigId for channel measurement; CSI-ReportConfig also includes a codebook configuration (codebookConfig).

[0156] CSI-ResourceConfig is used to configure the relevant information of the reference signal resources, such as the time-frequency resources, antenna ports, power resources or scrambling codes of the reference signal. For example, CSI-ResourceConfig may include a CSI resource set list (CSI-RS-ResourceSetList), which is associated with the configuration of the NZP-CSI-RS resource set (NZP-CSI-RS-ResourceSet) through a non-zero power (NZP) CSI-RS resource set identifier (NZP-CSI-RS-ResourceSetId). NZP-CSI-RS-ResourceSet includes the nzp-CSI-RS-Resources field, which is associated with at least one NZP-CSI-RS-Resource through at least one NZP-CSI-RS resource identifier (NZP-CSI-RS-ResourceId).

[0157] codebookConfig: used to configure MIMO codebook-related information, such as the codebook type, the number of ports N1 in the first dimension, and the number of ports N2 in the second dimension.

[0158] It should be understood that CSI-ReportConfig, or CSI-ResourceConfig, or codebookConfig may also include other fields, which are not listed here one by one.

[0159] (4) Antenna port

[0160] Antenna port can also be referred to as port for short. Antenna port can be understood as a transmitting antenna recognized by a receiving device, or a transmitting antenna that can be distinguished in space. Unless otherwise specified, the antenna ports in the embodiments of this application refer to the ports of logical antennas, not the ports of physical antennas. For example, the reference signal transmitted by the network device through antenna port A can be used by the terminal device to estimate the characteristics of the channel from antenna port A to the terminal device.

[0161] An antenna port group may also be referred to as a port group, or may be understood as an antenna port set or an antenna port array. An antenna port group may consist of one or more antenna ports.

[0162] (5) Code Division Multiplexing (CDM)

[0163] Multiple antenna ports can share time-frequency resources by using orthogonal cover code (OCC) sequences in the time and frequency domains. This approach is called CDM. Other sequences can also be used, which is not limited in this application.

[0164] For example, CDM may include four types:

[0165] Type 1. noCDM: does not use code division multiplexing;

[0166] Type 2. CDM2: No time domain multiplexing, only frequency domain multiplexing, occupies two subcarriers in the frequency domain. The corresponding mapping diagram is shown in Figure 2A. Within a resource block and the same CDM group, two ports use the same two consecutive subcarriers. The two ports superimpose different OCC codes on the time-frequency resources. As shown in Figure 2A, the first port superimposes +1 and +1 on the two subcarriers, respectively, and the second port superimposes +1 and -1 on the two subcarriers, respectively.

[0167] Type 3. CDM4: Both the time and frequency domains are multiplexed, occupying two subcarriers in the frequency domain and two symbols in the time domain. The corresponding mapping diagram is shown in Figure 2B. Within a resource block and the same CDM, the four ports use the same two consecutive subcarriers and two consecutive symbols. The four ports superimpose different OCC codes on the time-frequency resources. As shown in Figure 2B, the first port superimposes +1 and +1 on the two symbols on the first subcarrier, and +1 and +1 on the two symbols on the second subcarrier. The second port superimposes +1 and -1 on the two symbols on the first subcarrier, and +1 and -1 on the two symbols on the second subcarrier, and so on.

[0168] Type 4. CDM8: Both the time and frequency domains are multiplexed, occupying two subcarriers in the frequency domain and four symbols in the time domain. The corresponding mapping diagram is shown in Figure 2C. Within a resource block and the same CDM, eight ports use the same two consecutive subcarriers and four consecutive symbols. The eight ports superimpose different OCC codes on the time and frequency resources. As shown in Figure 2C, the first port superimposes +1, +1, +1, and +1 on the four symbols on the first subcarrier, and +1, +1, +1, and +1 on the four symbols on the second subcarrier. The second port superimposes +1, +1, +1, and +1 on the four symbols on the first subcarrier, and -1, -1, -1, and -1 on the four symbols on the second subcarrier, and so on.

[0169] For the current CSI-RS resources, only 32 ports are supported at most, and the ports corresponding to the CSI-RS resources are in the following order: p = 3000 + s + jL; j = 0, 1, ..., N / L-1; s = 0, 1, ..., L-1;

[0170] Where p represents the port index of the CSI-RS resource, j represents the index of the CDM group of the CSI-RS resource, s represents the index of the sequence within the CDM group of the CSI-RS resource, N represents the total number of ports corresponding to the CSI-RS resource, and L represents the size of the CDM group of the CSI-RS resource. For ease of description, the above formula is referred to as Formula 0.

[0171] Exemplarily, the network device can configure the number of ports N1 in the first dimension and the number of ports N2 in the second dimension in the codebook configuration (CodebookConfig), N=2N1N2, and N is the number of ports corresponding to the CSI-RS resource. The ports corresponding to the CSI-RS resource are arranged in the order of the second dimension first, then the first dimension, and finally the polarization direction. Exemplarily, the first dimension is the horizontal direction, and the second dimension is the vertical direction, N1=8, N2=2, where the horizontal direction can also be called the horizontal dimension, and the vertical dimension can also be called the vertical direction. As shown in Figure 3, it is a schematic diagram of the arrangement of ports corresponding to CSI-RS resources supporting 32 ports. Each cross in Figure 3 represents a pair of dual-polarized antennas.

[0172] In Figure 3, assuming C=0, the port index starts from 0. The port index of the port located in the first row and first column with the first polarization direction is determined in the order of vertical direction, then horizontal direction, and finally polarization direction. The port index of the port located in the second row and first column with the first polarization direction is 0, the port index of the port located in the second row and first column with the first polarization direction is 1, the port index of the port located in the first row and second column with the first polarization direction is 2, and the port index of the port located in the second row and second column with the first polarization direction is 3. By analogy, the port index of the port located in the first row and eighth column with the first polarization direction is 14, the port index of the port located in the second row and eighth column with the first polarization direction is 15, the port index of the port located in the first row and first column with the second polarization direction is 16, and the port index of the port located in the second row and first column with the second polarization direction is 17. By analogy, the port index of the port located in the first row and eighth column with the second polarization direction is 30, and the port index of the port located in the second row and eighth column with the second polarization direction is 31.

[0173] If the number of ports supported by a single CSI-RS resource is expanded from 32 to 64 or more, network devices need to significantly change their existing implementation to support the transmission of CSI-RS on a larger number of ports. At the same time, terminal devices also need to significantly change their existing implementation to support the measurement of CSI-RS on a larger number of ports.

[0174] In addition, in the current coherent joint transmission (CJT), network equipment can configure multiple CSI-RS resources for terminal devices. Each CSI-RS resource corresponds to a transmission reception point (TRP). The terminal device will perform joint measurements based on the channels of the TRPs corresponding to these multiple CSI-RS resources. According to the current CJT scheme, one CSI-RS resource corresponds to one TRP, and different CSI-RS resources correspond to different TRPs. Alternatively, one CSI-RS resource port corresponds to one TRP, and different CSI-RS resource ports correspond to different TRPs, or one CSI-RS resource port belongs to one TRP, and different CSI-RS resource ports belong to different TRPs.

[0175] However, these different CSI-RS resources can actually correspond to the same TRP. Alternatively, due to strong correlation between channels, these different CSI-RS resources can be considered to correspond to a single TRP. The current CJT solution cannot map different CSI-RS resources to the same TRP, resulting in redundant CSI feedback information and high feedback overhead, which opens up room for further optimization. For example, assuming four CSI-RS resources correspond to four TRPs, the terminal device needs to provide CSI feedback for each TRP, resulting in four CSIs, leading to high feedback overhead.

[0176] Based on the network system architecture shown in FIG1 and the contents of the above-mentioned related technical introduction, a possible resource configuration method is provided in an embodiment of the present application. The execution subject of the following resource configuration method is introduced by taking a network device and a terminal device as an example. For example, the network device can be the access network device 110a or the access network device 110b in FIG1 . The terminal device can be any of the terminals shown in FIG1 . In addition, it should be understood that the network device can also be replaced by a communication device having the function of a network device or a chip, unit or module inside a communication device having the function of a network device. The terminal device can also be replaced by a communication device having the function of a terminal device or a chip, unit or module inside a communication device having the function of a terminal device.

[0177] FIG4 exemplarily shows a possible flow diagram of a resource configuration method provided in an embodiment of the present application. As shown in FIG4 , the method includes:

[0178] Step 400: The network device sends first indication information to the terminal device. Correspondingly, the terminal device receives the first indication information from the network device.

[0179] The first indication information is used to indicate M reference signal resources. Among the ports corresponding to the M reference signal resources, the minimum port index is 0+C, the maximum port index is K-1+C, K is the sum of the number of ports corresponding to the M reference signal resources, M is an integer greater than or equal to 2, C is a constant, and K is an integer greater than 32. Exemplarily, the value of C can be 3000 or other values. The value of C can be a constant predefined by the protocol, or a constant determined by the network device and indicated to the terminal device. This application is not limited to this.

[0180] Among them, among the ports corresponding to the M reference signal resources, the minimum port index is 0+C, and the maximum port index is K-1+C. It can also be understood that, among the ports corresponding to the M reference signal resources, the difference between the maximum port index and the minimum port index is K-1. Therefore, the terminal device and the network device can determine that the ports corresponding to the M reference signal resources correspond to the same TRP, rather than the ports corresponding to the M reference signal resources corresponding to M TRPs. Or it can be described as, the terminal device and the network device can make the ports corresponding to the M reference signal resources correspond to the same TRP; or, the terminal device and the network device can make the ports corresponding to the M reference signal resources belong to the same TRP; or, the terminal device and the network device can determine that the ports corresponding to the M reference signal resources belong to the same TRP.

[0181] Exemplarily, any two reference signal resources among the M reference signal resources have different port indexes. This can also be understood as any two reference signal resources among the M reference signal resources do not have the same port index.

[0182] It is understandable that each reference signal resource corresponds to at least one port, and the port indexes corresponding to the at least one port are different. Exemplarily, the first reference signal resource corresponds to X ports, and the X ports correspond to the X port indexes one-to-one. The second reference signal resource 2 corresponds to Y ports, and the Y ports correspond to the Y port indexes one-to-one. Where X and Y are positive integers, the first reference signal resource and the second reference signal resource are any two reference signal resources from the M reference signal resources, and the X port indexes and the Y port indexes are different.

[0183] For example, assuming a network device is configured with four reference signal resources, each supporting 32 ports, then according to the above formula 0, the port index corresponding to each reference signal resource ranges from C to C+31. Therefore, any two different reference signal resources among the four reference signal resources have the same port index. Each reference signal resource includes a port index s, where C represents the port index and s is an integer.

[0184] Using the method provided in this application, assume that a network device is configured with four reference signal resources, each of which supports 32 ports. Among the ports corresponding to the four reference signal resources, the minimum port index is C and the maximum port index is 127+C. Therefore, no two different reference signal resources among the four reference signal resources have the same port index, or in other words, the port indexes of any two different reference signal resources are different. Alternatively, it can be described as follows: the four reference signal resources correspond to a total of 128 ports, and the port indexes corresponding to these 128 ports are different from each other.

[0185] Exemplarily, the first indication information may be carried by NZP-CSI-RS-ResourceSet.

[0186] Step 410: The network device sends a reference signal on M reference signal resources. Correspondingly, the terminal device receives the reference signal on the M reference signal resources.

[0187] Step 420: The terminal device sends CSI to the network device, and correspondingly, the network device receives CSI from the terminal device. The CSI is determined based on the reference signal in step 410.

[0188] Exemplarily, after the network device sends a reference signal on M reference signal resources, the terminal device determines a CSI based on the received reference signal and reports the CSI to the network device.

[0189] Through the above method, the network device can configure M reference signal resources, and the total number of ports corresponding to these reference signal resources is greater than 32. Since the minimum port index of the ports corresponding to these reference signal resources is 0+C and the maximum port index is K-1+C, it is possible to uniformly number the port indexes of the ports corresponding to these reference signal resources, rather than individually numbering the port indexes of the ports corresponding to each reference signal resource. This allows the network device and the terminal device to determine that the ports corresponding to the M reference signal resources correspond to the same TRP, and the M reference signal resources can support a larger number of antenna ports, which can be applicable to FDD systems with antenna arrays with more than 32 antenna ports.

[0190] Because the terminal device determines that the ports corresponding to M reference signal resources correspond to the same TRP, the terminal device only needs to report one CSI for quantized reporting of the channels of one TRP. Compared with the CJT solution, the terminal device needs to report M CSI for quantized reporting of the channels of M TRPs, which can reduce feedback overhead. In addition, this CSI can reflect the complete spatial dimension characteristics and more accurately reflect the channel characteristics.

[0191] Furthermore, in one possible implementation, the network device may also send third indication information to the terminal device, where the third indication information indicates the number of ports N1 in the first dimension and / or the number of ports N2 in the second dimension, where N1 and N2 are positive integers, and K = 2N1 * N2. Exemplarily, the third indication information may be carried by a codebook configuration.

[0192] Among them, when the third indication information indicates the number of ports N1 of the first dimension, or the number of ports N2 of the second dimension, the terminal device can also calculate the number of ports of another unindicated dimension based on K=2N1*N2. For example, when the third indication information indicates the number of ports N1 of the first dimension, but does not indicate the number of ports of the second dimension, the terminal device can calculate the number of ports N2 of the second dimension based on the number of ports N1 of the first dimension and K=2N1*N2. For another example, when the third indication information indicates the number of ports N2 of the second dimension, but does not indicate the number of ports of the first dimension, the terminal device can calculate the number of ports N1 of the first dimension based on the number of ports N1 of the first dimension and K=2N1*N2. The network device and the terminal device can determine the ports corresponding to the M reference signal resources and the corresponding port indexes based on the number of ports N1 of the first dimension, the number of ports N2 of the second dimension and the polarization direction. It can also be described as follows: based on the number of ports N1 in the first dimension, the number of ports N2 in the second dimension, and the polarization direction, the specific arrangement of the ports corresponding to the M reference signal resources, or the topological structure of a group of ports corresponding to the M reference signal resources, or the antenna array corresponding to the M reference signal resources can be determined.

[0193] For example, assuming that the first dimension is the horizontal direction and the second dimension is the vertical direction, it can be seen from the above that K is the sum of the number of ports corresponding to the M reference signal resources, that is, the M reference signal resources correspond to K ports in total, then the K ports can be arranged in the order of the second dimension first, then the first dimension, and finally the polarization direction, or the K ports can be arranged in the order of the first dimension first, then the second dimension, and finally the polarization direction, and then the specific arrangement of the K ports can be determined. It is understandable that the K ports can also be arranged in other orders, and this application is not limited to this.

[0194] Exemplarily, the following method 3 is used to arrange the ports of M reference signal resources, and the port arrangement of each reference signal resource corresponds one-to-one to the arrangement of some ports in the K ports. That is, the M reference signal resources correspond to K ports in total, and the ports included in the port group corresponding to each reference signal resource correspond one-to-one to some ports in the K ports, as shown in Figure 9. Exemplarily, the K ports in Figure 9 are arranged in the order of the second dimension first, then the first dimension, and finally the polarization direction, wherein the first reference signal resource corresponds to ports 0 to 15 of the first polarization direction and ports 64 to 79 of the second polarization direction. It can be considered that the configuration n1, n2 of the reference signal resource and the position of the reference signal in the entire K ports can determine the port arrangement of the reference signal resource, and its port number corresponds one-to-one to the port number of the same position in the entire K ports. In other words, the port index p corresponding to the reference signal resource with sequence number m m The port group corresponding to each reference signal resource is obtained based on the number of ports n1 in the first dimension, the number of ports n2 in the second dimension, and the position of the port group corresponding to the reference signal resource with sequence number m in the port groups corresponding to the M reference signal resources. For details, refer to the following formulas A, B, A', B', and C.

[0195] In this application, n1 represents the number of ports in the first dimension of the port group corresponding to each reference signal resource in one polarization direction, which can also be simply referred to as the number of ports in the first dimension of the port group corresponding to each reference signal resource. n2 represents the number of ports in the second dimension of the port group corresponding to each reference signal resource in one polarization direction, which can also be simply referred to as the number of ports in the second dimension of the port group corresponding to each reference signal resource. N1 represents the number of ports in the first dimension of one polarization direction, which can also be simply referred to as the number of ports in the first dimension, and N2 represents the number of ports in the second dimension of one polarization direction, which can also be simply referred to as the ports in the second dimension.

[0196] Exemplarily, when n2=N2, each polarization direction within each reference signal resource is arranged sequentially in the order of the second dimension first and then the first dimension, or each polarization direction within each reference signal resource is arranged sequentially in the order of the first dimension first and then the second dimension. The ports of the first polarization direction of all reference signal resources are arranged first, and then the ports of the second polarization direction of all reference signal resources are arranged. Referring to Figure 9 below, the order is to arrange the first polarization direction port of the first reference signal resource, the first polarization direction port of the second reference signal resource, ..., the first polarization direction port of the Mth reference signal resource, the second polarization direction port of the first reference signal resource, ..., the second polarization direction port of the Mth reference signal resource.

[0197] Exemplarily, when n1=N1, each polarization direction within each reference signal resource is arranged in sequence according to the second dimension or the first dimension. Among them, the ports of the first polarization direction of all reference signal resources are arranged first, and then the ports of the second polarization direction of all reference signal resources are arranged. Referring to the following figure, the order is to arrange the first polarization direction of the first reference signal resource in the first column n2 ports, the first polarization direction of the second reference signal resource in the first column n2 ports, ..., the first polarization direction of the Mth reference signal resource in the first column n2 ports, the first polarization direction of the first reference signal resource in the second column n2 ports, ..., the first polarization direction of the Mth reference signal resource in the second column n2 ports, ..., the first polarization direction of the Mth reference signal resource in the second column n2 ports, ..., the first polarization direction of the first reference signal resource in the N1th column n2 ports, the first polarization direction of the second reference signal resource in the N1th column n2 ports, ..., the first polarization direction of the Mth reference signal resource in the N1th column n2 ports. The second polarization direction port of the reference signal resource is arranged as follows: the first column n2 ports in the second polarization direction of the first reference signal resource, the first column n2 ports in the second polarization direction of the second reference signal resource, ..., the first column n2 ports in the second polarization direction of the Mth reference signal resource, the second column n2 ports in the second polarization direction of the first reference signal resource, the second column n2 ports in the second polarization direction of the second reference signal resource, ..., the second column n2 ports in the second polarization direction of the Mth reference signal resource, ..., the second column N1 n2 ports in the second polarization direction of the first reference signal resource, the second column N1 n2 ports in the second polarization direction of the second reference signal resource, ..., the second column N1 n2 ports in the second polarization direction of the Mth reference signal resource. For example, as shown in Figure 10.

[0198] Exemplarily, when the number of ports N1 in the first dimension is the same as the number of ports n1 of the port group corresponding to each reference signal resource in the first dimension, and / or the number of ports N2 in the second dimension is the same as the number of ports n2 of the port group corresponding to each reference signal resource in the second dimension, K, N1, N2, n1, and n2 satisfy one or more of the following corresponding relationships:

[0199] When K=48, N1=8, N2=3, n1=4, n2=3; or,

[0200] When K=48, N1=8, N2=3, n1=8, n2=1; or

[0201] When K=48, N1=6, N2=4, n1=6, n2=2; or

[0202] When K=64, N1=16, N2=2, n1=8, n2=2; or

[0203] When K=64, N1=16, N2=2, n1=16, n2=1; or

[0204] When K=64, N1=8, N2=4, n1=4, n2=4; or

[0205] When K=64, N1=8, N2=4, n1=8, n2=2; or

[0206] When K=128, N1=16, N2=4, n1=4, n2=4; or

[0207] When K=128, N1=16, N2=4, n1=16, n2=1; or

[0208] When K=128, N1=8, N2=8, n1=8, n2=2.

[0209] Based on this port allocation scheme, the terminal can use one or more reference signal resources for channel measurement. Based on the reference signal resource configurations supported in existing protocols, the following correspondences between K, N1, N2, and n1, n2 are supported. It should be understood that Tables a, b, and c below are for illustrative purposes only and are not intended to limit this application.

[0210] Form a

[0211] Optionally, when only N1=n1 or N2=n2 is supported, K, N1, N2, n1 and n2 satisfy the following corresponding relationship, which can be Table b or Table c.

[0212] Form b

[0213] Form C

[0214] Therefore, the network device determines the specific arrangement of the ports corresponding to the M reference signal resources by configuring the number of ports N1 of the first dimension and the number of ports N2 of the second dimension.

[0215] Exemplarily, the port index corresponding to each reference signal resource in the M reference signal resources can be determined using, but not limited to, the following methods 1 to 3. It should be noted that the following description only takes the reference signal resource with a sequence number of m among the M reference signal resources as an example, 0≤m≤M-1, m is an integer, and therefore the reference signal resource with a sequence number of m can be any reference signal resource in the M reference signal resources. It should be noted that in the present application, the sequence numbers corresponding to the M reference signal resources start from 0, and the sequence number range is from 0 to M-1. In addition, the sequence numbers corresponding to the M reference signal resources can also start from 1, and the sequence number range is from 1 to M. The following description only takes the sequence numbers corresponding to the M reference signal resources starting from 0 as an example, and is not intended to be a limitation of the present application. It can be understood that the following indexes are also described as starting from 0, and can also start from 1, and the present application does not limit this.

[0216] In one possible implementation, the sequence numbers corresponding to the M reference signal resources are determined based on the identifiers corresponding to the M reference signal resources, or based on the configuration order of the M reference signal resources. For example, the sequence numbers corresponding to the M reference signal resources can be determined based on the identifiers corresponding to the M reference signal resources in descending order, or in descending order. It will be understood that the above method for determining the sequence numbers corresponding to the M reference signal resources is merely an example, and the sequence numbers corresponding to the M reference signal resources can also be determined by other methods, which is not limited in this application.

[0217] Method 1: The port index p corresponding to the reference signal resource with sequence number m m It is obtained according to the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the number of ports corresponding to the reference signal resources with sequence number less than or equal to m.

[0218] In one possible implementation, p m The corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the number of ports corresponding to the reference signal resource with sequence number less than or equal to m can be expressed by a formula or by other means, such as a table. When the corresponding relationship is presented in a table, the table may include p m, the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m. Optionally, the table may also include the size of the CDM group of the reference signal resource with sequence number m, the sum of the number of ports corresponding to the reference signal resources with sequence number less than m, and the number of ports corresponding to the reference signal resources with sequence number equal to m.

[0219] For example, p m The corresponding relationships among the index of the CDM group of the reference signal resource with a sequence number of m, the index of the sequence within the CDM group of the reference signal resource with a sequence number of m, the size of the CDM group of the reference signal resource with a sequence number of m, and the number of ports corresponding to the reference signal resource with a sequence number less than or equal to m are as follows:

[0220] Wherein, j represents the index of the CDM group of the reference signal resource with sequence number m, s represents the index of the sequence in the CDM group of the reference signal resource with sequence number m, 0≤s≤L m -1, N m Indicates the number of ports of the reference signal resource with sequence number m, L m represents the size of the CDM group of the reference signal resource with sequence number m, N is the sum of the number of ports corresponding to the reference signal resources with sequence numbers less than m. k is the number of ports corresponding to the reference signal resource with sequence number k, j and s are integers. The above formula is referred to as Formula 1.

[0221] The size of the CDM group of the reference signal resource with sequence number m may also be configured through radio resource control (RRC) signaling. It can also be written as: 0≤s≤L m -1, can also be expressed as: s=0,1,…L m -1.

[0222] It should be understood that the M reference signal resources are numbered starting from 1. When the numbering starts from 1, the summation range of the last term in Formula 1 is 1 to m. Formula 1 can be replaced by:

[0223] By adopting the above-mentioned method 1, the port indexes corresponding to the M reference signal resources can be determined relatively simply. However, each reference signal resource cannot constitute an independent dual-polarized antenna array, so the reuse of the reference signal resources cannot be achieved.

[0224] Method 2: The number of ports corresponding to each of the M reference signal resources is N, K = M*N, N is a positive integer. The port index p corresponding to the reference signal resource with sequence number m is m Obtained according to the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the value of N.

[0225] It can be understood that the number of ports corresponding to the M reference signal resources is N, that is, the number of ports corresponding to the M reference signal resources is the same.

[0226] In one possible implementation, p m The corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the value of N can be expressed by a formula or by other means, such as a table. When the corresponding relationship is presented in a table, the table may include p m , the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, and optionally, the size of the CDM group of the reference signal resource with sequence number m.

[0227] In one example, p m The corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the value of N is: m =C+s+jL m +mN Formula 2

[0228] Wherein, j represents the index of the CDM group of the reference signal resource with sequence number m, s represents the index of the sequence in the CDM group of the reference signal resource with sequence number m, 0≤s≤L m -1, L m represents the size of the CDM group of the reference signal resource with sequence number m, j and s are integers. The above formula is hereinafter referred to as Formula 2.

[0229] The above formula 2 can be regarded as a simplified version of formula 1. That is, when the number of ports corresponding to the M reference signal resources is N, formula 1 can be simplified to formula 2.

[0230] It should be understood that the M reference signal resources are numbered starting from 1. When 1≤m≤M, Formula 2 can be replaced by: m =C+s+jL m+(m-1)N

[0231] Using the above example, when the number of ports corresponding to the M reference signal resources is the same, the port indexes corresponding to the M reference signal resources can be determined more easily. However, each reference signal resource cannot form an independent dual-polarized antenna array, so reference signal resource reuse cannot be achieved.

[0232] In another example, p m The corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the value of N is: m =C+(s+jL m )M+m Formula 3

[0233] Wherein, j represents the index of the CDM group of the reference signal resource with sequence number m, s represents the index of the sequence in the CDM group of the reference signal resource with sequence number m, 0≤s≤L m -1, L m represents the size of the CDM group of the reference signal resource with sequence number m, j and s are integers. The above formula is hereinafter referred to as Formula 3.

[0234] It should be understood that the M reference signal resources are numbered starting from 1. When the numbering starts from 1, Formula 3 can be replaced by: m =C+(s+jL m )M+m-1

[0235] The above formula 3 can be understood as follows: From the above, K is the sum of the number of ports corresponding to the M reference signal resources, that is, the M reference signal resources correspond to K ports in total, and the K ports are grouped into groups of 2M ports, and we can get group, where K=2N1N2. For example, it is assumed that the K ports are arranged in the order of the second dimension first, then the first dimension, and finally the polarization direction. For the 2M ports in each port group, a port group with M / min(N2,M) ports in the first dimension, min(N2,M) ports in the second dimension, and two polarization directions can be formed. That is, a port group can occupy M positions, of which M / min(N2,M) positions are occupied in the first dimension and min(N2,M) positions are occupied in the second dimension. These M positions are arranged in the order of the second dimension first and then the first dimension, and the two antenna ports at the m+1th position (or position m) belong to the port corresponding to the reference signal resource with serial number m.

[0236] As shown in Figure 5, assuming that the first dimension is horizontal and the second dimension is vertical, N1=8, N2=8. The number of ports corresponding to the four reference signal resources is 32, that is, the four reference signal resources correspond to a total of 128 ports. Grouping the 128 ports into groups of 2M=8 ports, we can get For each port group, the eight ports form a port group with a first dimension of M / min(N2,M) = 1 port and a second dimension of min(N2,M) = 4 ports. That is, each port group consists of eight antenna ports at four consecutive vertical positions. Since each port group occupies one position in the first dimension, the four positions occupied by each port group are arranged in the order of the second dimension, that is, in the vertical order. Therefore, within each port group, the two ports at the first vertical position (position 0) belong to the ports corresponding to the reference signal resource with sequence number 0, the two ports at the second vertical position (position 1) belong to the ports corresponding to the reference signal resource with sequence number 1, the two ports at the third vertical position (position 2) belong to the ports corresponding to the reference signal resource with sequence number 2, and the two ports at the fourth vertical position (position 3) belong to the ports corresponding to the reference signal resource with sequence number 3.

[0237] As can be seen from Figure 5, each column includes 8 positions, which means that 2 port groups can be formed. Through the above method, all ports in the first row and all ports in the fifth row belong to the ports corresponding to the reference signal resource with sequence number 0, all ports in the second row and all ports in the sixth row belong to the ports corresponding to the reference signal resource with sequence number 1, all ports in the third row and all ports in the seventh row belong to the ports corresponding to the reference signal resource with sequence number 2, and all ports in the fourth row and all ports in the eighth row belong to the ports corresponding to the reference signal resource with sequence number 3.

[0238] Therefore, the port corresponding to each reference signal resource can correspond to an array, which is a uniform dual-polarization array. Furthermore, the port corresponding to a single reference signal resource can also be used for separate quantization reporting, thereby enabling the reuse of reference signal resources. In other words, each of the M reference signal resources can be used as a separate measurement resource for terminal devices that do not support channel measurement with more than 32 ports. Considering that in actual deployments, due to different measurement capabilities of terminal devices, some terminal devices may only support reference signal resources with no more than 32 ports. Therefore, the above approach can achieve the reuse of reference signal resources and reduce the overhead of reference signal resources.

[0239] Using the above example, the formula for the port index is simple, easy to implement, and can achieve multiplexing of reference signal resources.

[0240] Method 3: The number of ports corresponding to each of the M reference signal resources is N, K = M*N, N is a positive integer. The port index p corresponding to the reference signal resource with sequence number m is m According to the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, the value of N, the number of ports n1 of the port group corresponding to each reference signal resource in the first dimension, the number of ports n2 of the port group corresponding to each reference signal resource in the second dimension, the sequence number of the port group corresponding to the reference signal resource with sequence number m in the first dimension, and the sequence number of the port group corresponding to the reference signal resource with sequence number m in the second dimension, K=2M*n1*n2, the port groups corresponding to the M reference signal resources respectively have the same number of ports in the first dimension, and the port groups corresponding to the M reference signal resources respectively have the same number of ports in the second dimension.

[0241] It can be understood that the number of ports corresponding to the M reference signal resources is N, that is, the number of ports corresponding to the M reference signal resources is the same.

[0242] In one possible implementation, p m The corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, the value of N, the number of ports n1 of the port group corresponding to each reference signal resource in the first dimension, the number of ports n2 of the port group corresponding to each reference signal resource in the second dimension, the sequence number of the port group corresponding to the reference signal resource with sequence number m in the first dimension, and the sequence number of the port group corresponding to the reference signal resource with sequence number m in the second dimension can be expressed by a formula or by other means, for example, a table. When the corresponding relationship is presented in a table, the table may include p m , the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the sequence number of the port group corresponding to the reference signal resource with sequence number m on the first dimension, and the sequence number of the port group corresponding to the reference signal resource with sequence number m on the second dimension. Optionally, the table may also include the size of the CDM group of the reference signal resource with sequence number m, the value of N, the number of ports n1 of the port group corresponding to each reference signal resource on the first dimension, and the number of ports n2 of the port group corresponding to each reference signal resource on the second dimension.

[0243] For example, the port index p corresponding to the reference signal resource with sequence number m is mThe correspondence between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, the value of N, the number of ports n1 of the port group corresponding to each reference signal resource in the first dimension, the number of ports n2 of the port group corresponding to each reference signal resource in the second dimension, the sequence number of the port group corresponding to the reference signal resource with sequence number m in the first dimension, and the sequence number of the port group corresponding to the reference signal resource with sequence number m in the second dimension is:

[0244] Formula A:

[0245] Formula B:

[0246] Where j represents the index of the CDM group, s represents the index of the sequence within the CDM group, 0≤s≤L m -1, L m represents the size of the CDM group of the reference signal resource with sequence number m, N1 and N2 are the number of ports in the first dimension and the number of ports in the second dimension respectively, h m Indicates the sequence number of the port group corresponding to the reference signal resource with sequence number m on the first dimension, v m Indicates the sequence number of the port group corresponding to the reference signal resource with sequence number m on the second dimension, The number of ports in the first dimension of the port group corresponding to each reference signal resource is n1, and the number of ports in the second dimension of the port group corresponding to each reference signal resource is n2. m 、h m 、v m , n1, n2 are integers, Indicates rounding down, and % indicates remainder operation.

[0247] When only N1=n1 or N2=n2 is considered, Formula A can be further simplified to Formula A', and Formula B can be further simplified to Formula B':

[0248] Formula A':

[0249] Formula B':

[0250] Consider only when N2=n2, the port index p corresponding to the reference signal resource with sequence number m is mThere is a corresponding relationship with the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, the value of N, and the number of reference signal resources M. Specifically, it can be expressed as the following formula C and formula D.

[0251] Formula C:

[0252] Formula D:

[0253] Among them, h m and v m It is used to indicate the position of the port group corresponding to the reference signal resource with sequence number m in the port groups corresponding to M reference signal resources.

[0254] In a possible implementation, the number of ports corresponding to the M reference signal resources is N, N m = N; and / or the size of the CDM groups corresponding to the M reference signal resources are both L, L m =L.

[0255] As shown in FIG6 , assuming that the first dimension is the horizontal direction and the second dimension is the vertical direction, N1=16, N2=4. The number of ports corresponding to the four reference signal resources is 32, that is, the four reference signal resources correspond to a total of 128 ports, wherein the number of ports of the port group corresponding to each reference signal resource in the first dimension is 8 and the number of ports in the second dimension is 2. Assuming that the four reference signal resources are arranged in the vertical direction first and then the horizontal direction, the h corresponding to the reference signal resource with sequence number 0 is m and v m h m =0,v m = 0, the position of the reference signal resource with sequence number 0 is recorded as (0,0), and the h corresponding to the reference signal resource with sequence number 1 is m and v m h m =0,v m =1, the position of the reference signal resource with sequence number 1 is (0,1), and the h corresponding to the reference signal resource with sequence number 2 is m and v m h m =1,v m = 0, the position of the reference signal resource with sequence number 2 is (1,0), and the h corresponding to the reference signal resource with sequence number 3 is m and v m h m =1,v m=1, and the position of the reference signal resource with sequence number 3 is recorded as (1,1). Therefore, the positions of the four reference signal resources, that is, the arrangement of the four reference signal resources, can be determined.

[0256] It should be understood that the arrangement order of the port groups corresponding to the M reference signal resources can be arranged in the order of the second dimension first and then the first dimension, or can be arranged in the order of the first dimension first and then the second dimension, or can be arranged in other ways as agreed by the protocol, or can be indicated by the network device through signaling.

[0257] The port groups corresponding to the M reference signal resources have the same number of ports in the first dimension, that is, the number of ports in the port group corresponding to each reference signal resource in the first dimension is n1. The port groups corresponding to the M reference signal resources have the same number of ports in the second dimension, that is, the number of ports in the port group corresponding to each reference signal resource in the second dimension is n2.

[0258] In a possible implementation, the network device may further send second indication information to the terminal device, where the second indication information indicates the number of ports n1 of the port group corresponding to each reference signal resource in the first dimension and / or the number of ports n2 of the port group corresponding to each reference signal resource in the second dimension, where K=2M*n1*n2.

[0259] In which, when the second indication information indicates the number of ports n1 of the port group corresponding to each reference signal resource in the first dimension, or the number of ports n2 of the port group corresponding to each reference signal resource in the second dimension, the terminal device can calculate the number of ports of the port group corresponding to each reference signal resource in another dimension according to K=2M*n1*n2.

[0260] For example, the second indication information can be carried via a resource configuration (e.g., CSI-ResourceConfig), a reporting configuration (e.g., reportConfig), or a codebook configuration (e.g., codebookConfig). Furthermore, since the reference signal resources associated with these configurations have the same number of ports, the configurations of the M reference signal resources can share the same parameters. Therefore, n1 and n2 only need to be configured once, rather than M times, thereby saving signaling overhead.

[0261] Therefore, the network device determines the specific arrangement of the ports corresponding to each reference signal resource, or the topological structure of the port group corresponding to each reference signal resource, or the port array corresponding to each reference signal resource by configuring the number of ports n1 in the first dimension and / or the number of ports n2 in the second dimension of the port group corresponding to each reference signal resource.

[0262] In approach 3 above, each reference signal resource corresponds to a dual-polarization array. Therefore, for a single reference signal resource, the existing codebook can be used for quantization feedback. This means that a single reference signal resource can be used for independent quantization reporting, thereby enabling reference signal resource reuse. Consequently, each of the M reference signal resources can be used as a separate measurement resource for terminal devices that do not support channel measurement with more than 32 ports. Considering that in actual deployments, due to varying measurement capabilities of terminal devices, some may only support reference signal resources with no more than 32 ports, the above approach can effectively reuse reference signal resources and reduce reference signal resource overhead.

[0263] It is understood that in order to implement the functions in the above embodiments, the network devices and terminals include hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should readily appreciate that, in conjunction with the units and method steps of each example described in the embodiments disclosed in this application, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in hardware or in a manner driven by computer software depends on the specific application scenario and design constraints of the technical solution.

[0264] Figures 7 and 8 are schematic diagrams of the structures of possible communication devices provided in embodiments of the present application. These communication devices can be used to implement the functions of the terminal or network device in the above-mentioned method embodiments, thereby also achieving the beneficial effects of the above-mentioned method embodiments. In the embodiments of the present application, the communication device can be one of the terminals 120a-120j shown in Figure 1, or it can be the base station 110a or 110b shown in Figure 1, or it can be a module (such as a chip) applied to the terminal or base station.

[0265] As shown in Figure 7, a communication device 700 includes a processing unit 710 and a transceiver unit 720. The communication device 700 is used to implement the functions of the terminal or network device in the method embodiment shown in Figure 4 above.

[0266] When the communication device 700 is used to implement the functions of the network device in the method embodiment shown in FIG4 :

[0267] The processing unit 710 is configured to determine first indication information, wherein the first indication information is used to indicate M reference signal resources, where among the ports corresponding to the M reference signal resources, the minimum port index is 0+C, the maximum port index is K-1+C, K is the sum of the number of ports corresponding to the M reference signal resources, M is an integer greater than or equal to 2, C is a constant, and K is an integer greater than 32;

[0268] The transceiver unit 720 is configured to send first indication information to a terminal device, send a reference signal on the M reference signal resources, and receive CSI from the terminal device, where the CSI is determined based on the reference signal.

[0269] In one possible design, port indexes of any two reference signal resources among the M reference signal resources are different.

[0270] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is m It is obtained according to the index of the code division multiplexing CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the number of ports corresponding to the reference signal resources with sequence number less than or equal to m, 0≤m≤M-1, and m is an integer.

[0271] In one possible design, the p m The corresponding relationship between the index of the CDM group of the reference signal resource with a sequence number of m, the index of the sequence within the CDM group of the reference signal resource with a sequence number of m, the size of the CDM group of the reference signal resource with a sequence number of m, and the number of ports corresponding to the reference signal resource with a sequence number less than or equal to m is:

[0272] Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1, N m Indicates the number of ports of the reference signal resource with sequence number m, L m represents the size of the CDM group, N is the sum of the number of ports corresponding to the reference signal resources with sequence numbers less than m. k is the number of ports corresponding to the reference signal resource with sequence number k, and j and s are integers.

[0273] In a possible design, the number of ports corresponding to the M reference signal resources is N, K=M*N, and N is a positive integer.

[0274] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is m According to the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m and the value of N, 0≤m≤M-1, m is an integer.

[0275] In one possible design, the pm The corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the value of N is: m =C+s+jL m +mN

[0276] Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1, L m represents the size of the CDM group, j and s are integers.

[0277] In one possible design, the p m The corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the value of N is: m =C+(s+jL m )M+m

[0278] Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1, L m represents the size of the CDM group, j and s are integers.

[0279] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is m It is obtained according to the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, the value of N, the number of ports n1 of the port group corresponding to each reference signal resource in the first dimension, the number of ports n2 of the port group corresponding to each reference signal resource in the second dimension, the sequence number of the port group corresponding to the reference signal resource with sequence number m in the first dimension, and the sequence number of the port group corresponding to the reference signal resource with sequence number m in the second dimension, wherein 0≤m≤M-1, m is an integer, K=2M*n1*n2, the port groups corresponding to the M reference signal resources respectively have the same number of ports in the first dimension, and the port groups corresponding to the M reference signal resources respectively have the same number of ports in the second dimension.

[0280] In one possible design, the transceiver unit 720 is used to send second indication information to the terminal device, wherein the second indication information indicates the number of ports n1 of the port group corresponding to each reference signal resource in the first dimension and / or the number of ports n2 of the port group corresponding to each reference signal resource in the second dimension.

[0281] In one possible design, the serial numbers corresponding to the M reference signal resources are determined according to the identifiers corresponding to the M reference signal resources, or according to the configuration order of the M reference signal resources.

[0282] In one possible design, the transceiver unit 720 is used to send third indication information to the terminal device, where the third indication information indicates the number of ports N1 in the first dimension and / or the number of ports N2 in the second dimension, where N1 and N2 are positive integers, and K=2N1*N2; the processing unit 710 is used to determine the ports corresponding to the M reference signal resources and the corresponding port indexes based on the number of ports N1 in the first dimension, the number of ports N2 in the second dimension, and the polarization direction.

[0283] When the communication device 700 is used to implement the functions of the terminal device in the method embodiment shown in FIG4 :

[0284] a transceiver unit, configured to receive first indication information from a network device, and receive a reference signal on the M reference signal resources; wherein the first indication information is used to indicate the M reference signal resources, and among the ports corresponding to the M reference signal resources, the minimum port index is 0+C, the maximum port index is K-1+C, K is the sum of the number of ports corresponding to the M reference signal resources, M is an integer greater than or equal to 2, C is a constant, and K is an integer greater than 32;

[0285] The processing unit is configured to determine CSI, where the CSI is determined based on the reference signal;

[0286] The transceiver unit is configured to send the CSI to the network device.

[0287] In one possible design, port indexes of any two reference signal resources among the M reference signal resources are different.

[0288] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is m It is obtained according to the index of the code division multiplexing CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the number of ports corresponding to the reference signal resources with sequence number less than or equal to m, 0≤m≤M-1, and m is an integer.

[0289] In one possible design, the p m The corresponding relationship between the index of the CDM group of the reference signal resource with a sequence number of m, the index of the sequence within the CDM group of the reference signal resource with a sequence number of m, the size of the CDM group of the reference signal resource with a sequence number of m, and the number of ports corresponding to the reference signal resource with a sequence number less than or equal to m is:

[0290] Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1, N m Indicates the number of ports of the reference signal resource with sequence number m, L m represents the size of the CDM group, N is the sum of the number of ports corresponding to the reference signal resources with sequence numbers less than m. k is the number of ports corresponding to the reference signal resource with sequence number k, and j and s are integers.

[0291] In a possible design, the number of ports corresponding to the M reference signal resources is N, K=M*N, and N is a positive integer.

[0292] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is m According to the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m and the value of N, 0≤m≤M-1, m is an integer.

[0293] In one possible design, the p m The corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the value of N is: m =C+s+jL m +mN

[0294] Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1, L m represents the size of the CDM group, j and s are integers.

[0295] In one possible design, the p mThe corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the value of N is: m =C+(s+jL m )M+m

[0296] Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1, L m represents the size of the CDM group, j and s are integers.

[0297] In one possible design, the port index p corresponding to the reference signal resource with sequence number m is m It is obtained according to the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, the value of N, the number of ports n1 of the port group corresponding to each reference signal resource in the first dimension, the number of ports n2 of the port group corresponding to each reference signal resource in the second dimension, the sequence number of the port group corresponding to the reference signal resource with sequence number m in the first dimension, and the sequence number of the port group corresponding to the reference signal resource with sequence number m in the second dimension, wherein 0≤m≤M-1, m is an integer, K=2M*n1*n2, the port groups corresponding to the M reference signal resources respectively have the same number of ports in the first dimension, and the port groups corresponding to the M reference signal resources respectively have the same number of ports in the second dimension.

[0298] In one possible design, the transceiver unit 720 is used to receive second indication information from the network device, wherein the second indication information indicates the number of ports n1 of the port group corresponding to each reference signal resource in the first dimension and / or the number of ports n2 of the port group corresponding to each reference signal resource in the second dimension.

[0299] In one possible design, the serial numbers corresponding to the M reference signal resources are determined according to the identifiers corresponding to the M reference signal resources, or according to the configuration order of the M reference signal resources.

[0300] In one possible design, the transceiver unit 720 is used to receive third indication information from the network device, where the third indication information indicates the number of ports N1 in the first dimension and / or the number of ports N2 in the second dimension, where N1 and N2 are positive integers, and K=2N1*N2; the processing unit 710 is used to determine the ports corresponding to the M reference signal resources and the corresponding port indexes based on the number of ports N1 in the first dimension, the number of ports N2 in the second dimension, and the polarization direction.

[0301] A more detailed description of the processing unit 710 and the transceiver unit 720 can be directly obtained by referring to the relevant description in the method embodiment shown in FIG4 , and is not repeated here.

[0302] As shown in Figure 8, communication device 800 includes a processor 810 and an interface circuit 820. Processor 810 and interface circuit 820 are coupled to each other. It will be appreciated that interface circuit 820 may be a transceiver or an input / output interface. Optionally, communication device 800 may further include a memory 830 for storing instructions executed by processor 810, input data required by processor 810 to execute instructions, or data generated after processor 810 executes instructions.

[0303] When the communication device 800 is used to implement the method shown in FIG. 4 , the processor 810 is used to implement the functions of the processing unit 710 , and the interface circuit 820 is used to implement the functions of the transceiver unit 720 .

[0304] When the communication device is a chip used in a terminal, the terminal chip implements the terminal functions in the above method embodiments. The terminal chip receives information from other modules in the terminal (such as a radio frequency module or antenna), and the information is sent by the network device to the terminal; or the terminal chip sends information to other modules in the terminal (such as a radio frequency module or antenna), and the information is sent by the terminal to the network device.

[0305] When the above-mentioned communication device is a module applied to a network device, the network device module implements the functions of the network device in the above-mentioned method embodiment. The network device module receives information from other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the terminal to the network device; or the network device module sends information to other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the network device to the terminal. The network device module here can be a baseband chip of the network device, or it can be a DU or other module. The DU here can be a DU under the open radio access network (O-RAN) architecture.

[0306] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0307] The present application provides another example of a device, which includes at least one processor and at least one memory, the at least one processor and the at least one memory being coupled together, the at least one memory being used to store instructions. When the instructions are executed by the at least one processor, the communication device executes the method in the above-described embodiment. For example, as shown in FIG8 , a communication device 800 includes a processor 810 and a memory 830. The processor 810 and the memory 830 are coupled together, and the memory 830 stores instructions. When the instructions stored in the memory 830 are executed by the processor 810, the communication device 800 executes the method executed by the network device or terminal in the above-described embodiment.

[0308] The method steps in the embodiments of the present application can be implemented in hardware or in software instructions that can be executed by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disk, mobile hard disk, CD-ROM or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium can also be an integral part of the processor. The processor and storage medium can be located in an ASIC. In addition, the ASIC can be located in a network device or a terminal. The processor and storage medium can also exist in a network device or a terminal as discrete components.

[0309] In the above embodiments, all or part of the embodiments may be implemented using software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device, or other programmable device. The computer program or instructions may be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions may be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; an optical medium, such as a digital video disk; or a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

[0310] In the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0311] In this application, "at least one" means one or more, and "more" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In the text description of this application, the character " / " generally indicates that the previous and next associated objects are in an "or" relationship; in the formula of this application, the character " / " indicates that the previous and next associated objects are in a "division" relationship. "Including at least one of A, B and C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B and C.

[0312] It is understood that the various numbers used in the embodiments of this application are merely for ease of description and are not intended to limit the scope of the embodiments of this application. The order of the sequence numbers of the above-mentioned processes does not necessarily imply a specific order of execution; the order of execution of the processes should be determined by their functions and inherent logic.

Claims

1. A resource configuration method, characterized in that: The method includes: Sending first indication information to a terminal device; the first indication information is used to indicate M reference signal resources, where the minimum port index is 0+C, the maximum port index is K-1+C, K is the sum of the number of ports corresponding to the M reference signal resources, M is an integer greater than or equal to 2, C is a constant, and K is an integer greater than 32; Sending a reference signal on the M reference signal resources; and Channel state information CSI is received from the terminal device, where the CSI is determined based on the reference signal.

2. The method according to claim 1, characterized in that Any two reference signal resources among the M reference signal resources have different port indexes.

3. The method according to claim 1 or 2, characterized in that The port index p corresponding to the reference signal resource with sequence number m m It is obtained according to the index of the code division multiplexing CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the number of ports corresponding to the reference signal resources with sequence number less than or equal to m, 0≤m≤M-1, m is an integer.

4. The method according to claim 3, characterized in that The p m The corresponding relationship between the index of the CDM group of the reference signal resource with a sequence number of m, the index of the sequence within the CDM group of the reference signal resource with a sequence number of m, the size of the CDM group of the reference signal resource with a sequence number of m, and the number of ports corresponding to the reference signal resource with a sequence number less than or equal to m is: Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1, N m represents the number of ports of the reference signal resource with sequence number m, L m represents the size of the CDM group, is the sum of the number of ports corresponding to the reference signal resources with sequence numbers less than m, N m is the number of ports corresponding to the reference signal resource with sequence number m, and j and s are integers.

5. The method according to claim 1 or 2, characterized in that: The number of ports corresponding to the M reference signal resources is N, K=M*N, and N is a positive integer.

6. The method according to claim 5, characterized in that The port index p corresponding to the reference signal resource with sequence number m m According to the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m and the value of N, 0≤m≤M-1, m is an integer.

7. The method according to claim 6, characterized in that The p m The corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the value of N is: m =C+s+jL m +mN Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1,L m represents the size of the CDM group, j and s are integers.

8. The method according to claim 6, characterized in that The p m The corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the value of N is: m =C+(s+jL m )M+m Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1,L m represents the size of the CDM group, j and s are integers.

9. The method according to claim 5, characterized in that The port index p corresponding to the reference signal resource with sequence number m m The port group corresponding to each reference signal resource is obtained according to the number of ports n1 in the first dimension in one polarization direction, the number of ports n2 in the second dimension in one polarization direction of the port group corresponding to each reference signal resource, and the position of the port group corresponding to the reference signal resource with serial number m in the port groups corresponding to the M reference signal resources respectively.

10. The method according to claim 5 or 9, characterized in that: The port index p corresponding to the reference signal resource with sequence number m m It is obtained according to the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, the value of N, the number of ports n1 of the port group corresponding to each reference signal resource in a first dimension in one polarization direction, the number of ports n2 of the port group corresponding to each reference signal resource in a second dimension in one polarization direction, the sequence number of the port group corresponding to the reference signal resource with sequence number m in the first dimension, and the sequence number of the port group corresponding to the reference signal resource with sequence number m in the second dimension, wherein 0≤m≤M-1, m is an integer, K=2M*n1*n2, the port groups corresponding to the M reference signal resources respectively have the same number of ports in the first dimension, and the port groups corresponding to the M reference signal resources respectively have the same number of ports in the second dimension.

11. The method according to claim 10, characterized in that The port index p corresponding to the reference signal resource with sequence number m m Determined by the following formula A or formula B: Official A: Formula B: Where j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1,L m represents the size of the CDM group of the reference signal resource with sequence number m, N m represents the number of ports of the reference signal resource with sequence number m, N1 and N2 are the number of ports in the first dimension in one polarization direction and the number of ports in the second dimension in one polarization direction, respectively, m represents the sequence number of the port group corresponding to the reference signal resource with sequence number m in the first dimension, v m represents the sequence number of the port group corresponding to the reference signal resource with sequence number m in the second dimension, n1 represents the number of ports in the first dimension of the port group corresponding to each reference signal resource in one polarization direction, n2 represents the number of ports in the second dimension of the port group corresponding to each reference signal resource in one polarization direction, j, s, L m 、h m 、v m , n1, n2 are integers, Indicates rounding down, and % indicates remainder operation.

12. The method according to claim 11, characterized in that N1=n1 or N2=n2.

13. The method according to any one of claims 9 to 12, characterized in that: When N1=n1 and / or N2=n2, K, N1, N2, n1 and n2 satisfy one or more of the following corresponding relationships: When K = 48, N1 = 8, N2 = 3, n1 = 4, n2 = 3; or, When K=48, N1=8, N2=3, n1=8, n2=1; or When K = 48, N1 = 6, N2 = 4, n1 = 6, n2 = 2; or, When K=64, N1=16, N2=2, n1=8, n2=2; or, When K=64, N1=16, N2=2, n1=16, n2=1; or, When K=64, N1=8, N2=4, n1=4, n2=4; or, When K=64, N1=8, N2=4, n1=8, n2=2; or, When K = 128, N1 = 16, N2 = 4, n1 = 4, n2 = 4; or, When K = 128, N1 = 16, N2 = 4, n1 = 16, n2 = 1; or, When K=128, N1=8, N2=8, n1=8, n2=2.

14. The method according to any one of claims 5 to 13, characterized in that: The number of ports corresponding to the M reference signal resources is N, N m =N; and / or The sizes of the CDM groups corresponding to the M reference signal resources are both L, L m =L.

15. The method according to any one of claims 5 to 14, characterized in that: The M reference signal resources correspond to K ports in total, and the ports included in the port group corresponding to each reference signal resource correspond to some of the K ports in a one-to-one manner.

16. The method according to any one of claims 9 to 15, characterized in that: Also includes: Send second indication information to the terminal device, wherein the second indication information indicates the number of ports n1 of the port group corresponding to each reference signal resource in a first dimension in one polarization direction and / or the number of ports n2 of the port group corresponding to each reference signal resource in a second dimension in one polarization direction.

17. The method according to any one of claims 1 to 16, characterized in that: The serial numbers respectively corresponding to the M reference signal resources are determined according to the identifiers respectively corresponding to the M reference signal resources, or according to the configuration order of the M reference signal resources.

18. The method according to any one of claims 1 to 17, characterized in that: Also includes: Sending third indication information to the terminal device, where the third indication information indicates the number of ports N1 in a first dimension in one polarization direction and / or the number of ports N2 in a second dimension in one polarization direction, where N1 and N2 are positive integers, and K=2N1*N2; The method further comprises: The ports corresponding to the M reference signal resources and corresponding port indexes are determined according to the number N1 of ports in the first dimension in one polarization direction, the number N2 of ports in the second dimension in one polarization direction, and the polarization direction.

19. A resource allocation method, characterized in that: The method includes: Receive first indication information from a network device; the first indication information is used to indicate M reference signal resources, among the ports corresponding to the M reference signal resources, the minimum port index is 0+C, the maximum port index is K-1+C, K is the sum of the number of ports corresponding to the M reference signal resources respectively, M is an integer greater than or equal to 2, C is a constant, and K is an integer greater than 32; receiving a reference signal on the M reference signal resources; and Sending CSI to the network device, where the CSI is determined based on the reference signal.

20. The method of claim 19, wherein: Any two reference signal resources among the M reference signal resources have different port indexes.

21. The method according to claim 19 or 20, characterized in that The port index p corresponding to the reference signal resource with sequence number m m It is obtained according to the index of the code division multiplexing CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the number of ports corresponding to the reference signal resources with sequence number less than or equal to m, 0≤m≤M-1, m is an integer.

22. The method according to claim 21, characterized in that The p m The corresponding relationship between the index of the CDM group of the reference signal resource with a sequence number of m, the index of the sequence within the CDM group of the reference signal resource with a sequence number of m, the size of the CDM group of the reference signal resource with a sequence number of m, and the number of ports corresponding to the reference signal resource with a sequence number less than or equal to m is: Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1, N m represents the number of ports of the reference signal resource with sequence number m, L m represents the size of the CDM group, is the sum of the number of ports corresponding to the reference signal resources with sequence numbers less than m, N m is the number of ports corresponding to the reference signal resource with sequence number m, and j and s are integers.

23. The method according to claim 19 or 20, characterized in that The number of ports corresponding to the M reference signal resources is N, K=M*N, and N is a positive integer.

24. The method of claim 23, wherein: The port index p corresponding to the reference signal resource with sequence number m m According to the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m and the value of N, 0≤m≤M-1, m is an integer.

25. The method of claim 24, wherein: The p m The corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the value of N is: m =C+s+jL m +mN Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1,L m represents the size of the CDM group, j and s are integers.

26. The method of claim 24, wherein: The p m The corresponding relationship between the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, and the value of N is: m =C+(s+jL m )M+m Wherein, j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1,L m represents the size of the CDM group, j and s are integers.

27. The method of claim 21, wherein: The port index p corresponding to the reference signal resource with sequence number m m The port group corresponding to each reference signal resource is obtained according to the number of ports n1 in the first dimension in one polarization direction, the number of ports n2 in the second dimension in one polarization direction of the port group corresponding to each reference signal resource, and the position of the port group corresponding to the reference signal resource with serial number m in the port groups corresponding to the M reference signal resources respectively.

28. The method according to claim 21 or 27, characterized in that The port index p corresponding to the reference signal resource with sequence number m m It is obtained according to the index of the CDM group of the reference signal resource with sequence number m, the index of the sequence within the CDM group of the reference signal resource with sequence number m, the size of the CDM group of the reference signal resource with sequence number m, the value of N, the number of ports n1 of the port group corresponding to each reference signal resource in a first dimension in one polarization direction, the number of ports n2 of the port group corresponding to each reference signal resource in a second dimension in one polarization direction, the sequence number of the port group corresponding to the reference signal resource with sequence number m in the first dimension, and the sequence number of the port group corresponding to the reference signal resource with sequence number m in the second dimension, wherein 0≤m≤M-1, m is an integer, K=2M*n1*n2, the port groups corresponding to the M reference signal resources respectively have the same number of ports in the first dimension, and the port groups corresponding to the M reference signal resources respectively have the same number of ports in the second dimension.

29. The method of claim 28, wherein: The port index p corresponding to the reference signal resource with sequence number m m Determined by the following formula A or formula B: Official A: Formula B: Where j represents the index of the CDM group, s represents the index of the sequence in the CDM group, 0≤s≤L m -1,L m represents the size of the CDM group of the reference signal resource with sequence number m, N m represents the number of ports of the reference signal resource with sequence number m, N1 and N2 are the number of ports in the first dimension in one polarization direction and the number of ports in the second dimension in one polarization direction, respectively, m represents the sequence number of the port group corresponding to the reference signal resource with sequence number m in the first dimension, v m represents the sequence number of the port group corresponding to the reference signal resource with sequence number m in the second dimension, n1 represents the number of ports in the first dimension of the port group corresponding to each reference signal resource in one polarization direction, n2 represents the number of ports in the second dimension of the port group corresponding to each reference signal resource in one polarization direction, j, s, L m 、h m 、v m , n1, n2 are integers, Indicates rounding down, and % indicates remainder operation.

30. The method of claim 29, wherein: N1=n1 or N2=n2.

31. The method according to any one of claims 28 to 30, characterized in that When N1=n1 and / or N2=n2, K, N1, N2, n1 and n2 satisfy one or more of the following corresponding relationships: When K = 48, N1 = 8, N2 = 3, n1 = 4, n2 = 3; or, When K=48, N1=8, N2=3, n1=8, n2=1; or When K = 48, N1 = 6, N2 = 4, n1 = 6, n2 = 2; or, When K=64, N1=16, N2=2, n1=8, n2=2; or, When K=64, N1=16, N2=2, n1=16, n2=1; or, When K=64, N1=8, N2=4, n1=4, n2=4; or, When K=64, N1=8, N2=4, n1=8, n2=2; or, When K = 128, N1 = 16, N2 = 4, n1 = 4, n2 = 4; or, When K = 128, N1 = 16, N2 = 4, n1 = 16, n2 = 1; or, When K=128, N1=8, N2=8, n1=8, n2=2.

32. The method according to any one of claims 23 to 31, characterized in that The number of ports corresponding to the M reference signal resources is N, N m =N; and / or The sizes of the CDM groups corresponding to the M reference signal resources are both L, L m =L.

33. The method according to any one of claims 23 to 32, characterized in that The M reference signal resources correspond to K ports in total, and the ports included in the port group corresponding to each reference signal resource correspond to some of the K ports in a one-to-one manner.

34. The method according to any one of claims 23 to 33, characterized in that Also includes: Second indication information is received from the network device, wherein the second indication information indicates the number of ports n1 of the port group corresponding to each reference signal resource in a first dimension in one polarization direction and / or the number of ports n2 of the port group corresponding to each reference signal resource in a second dimension in one polarization direction.

35. The method according to any one of claims 19 to 34, characterized in that The serial numbers respectively corresponding to the M reference signal resources are determined according to the identifiers respectively corresponding to the M reference signal resources, or according to the configuration order of the M reference signal resources.

36. The method according to any one of claims 19 to 35, characterized in that Also includes: Receive third indication information from the network device, where the third indication information indicates the number of ports N1 in a first dimension in a polarization direction and / or the number of ports N2 in a second dimension in a polarization direction, where N1 and N2 are positive integers, and K=2N1*N2; The method further comprises: The ports corresponding to the M reference signal resources and corresponding port indexes are determined according to the number N1 of ports in the first dimension in one polarization direction, the number N2 of ports in the second dimension in one polarization direction, and the polarization direction.

37. A communication device, characterized in that: The method comprises a unit or a module for executing the method according to any one of claims 1 to 18, or comprises a unit or a module for executing the method according to any one of claims 19 to 36.

38. A communication device, characterized in that: include: One or more processors and an interface circuit; wherein the interface circuit is used to provide at least one processor with input and / or output of a program or instruction, and when the program or instruction is executed by the one or more processors, the device executes the method as described in any one of claims 1-18, or executes the method as described in any one of claims 19-36.

39. The communication device according to claim 38, characterized in that The communication device further comprises one or more memories, and the one or more memories are used to store the program or instruction.

40. A readable storage medium, characterized in that: The readable storage medium includes a program, and when the program is executed on a device, the device executes the method according to any one of claims 1 to 18, or executes the method according to any one of claims 19 to 36.

41. A computer program product, characterized in that The computer program product comprises a computer program or instructions, and when the computer program or instructions are executed by a communication device, the method according to any one of claims 1 to 18 is implemented, or the method according to any one of claims 19 to 36 is implemented.

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