# US 12,225,399 B2 · Channel state information transmission method and apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,225,399 B2 - Document ID: US12225399B2 - Status: Granted - Kind: B2 - Application number: 17/719,709 - Filed: 2022-04-13 - Published: 2022-10-13 - Granted: 2025-02-11 - Earliest claimed: 2019-10-15 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Di Zhang - Web page: https://patentgrep.com/patent/US12225399B2 ## CPC - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04B 7/088: {using beam selection} - H04B 17/26: using historical data, averaging values or statistics - H04B 17/345: Interference values ({signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]} H04B17/336) - H04L 1/0026: {Transmission of channel quality indication} - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04L 5/0023: {Time-frequency-space} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract One example method includes: When a network device indicates that a reporting type is group-based reporting, channel state information reported by a terminal device to the network device includes indexes of X first reference signal resources and Y pieces of channel quality information. Channel quality information of a jth first reference signal resource is determined based on the jth first reference signal resource and a second reference signal resource that has a first association relationship with the jth first reference signal resource. ## Claims ### Claim 1 A channel state information transmission method, comprising: receiving reporting configuration information, wherein the reporting configuration information indicates a reporting type, and the reporting type indicates group-based reporting; and sending channel state information, wherein the channel state information comprises indexes of X first reference signal resources and Y pieces of channel quality information, X is an integer greater than or equal to 2, and Y is an integer greater than or equal to 1, wherein channel quality information of a jth first reference signal resource is determined based on the jth first reference signal resource and a second reference signal resource that has a first association relationship with the jth first reference signal resource, the jth first reference signal resource is one of the X first reference signal resources, and j is an integer greater than or equal to 1 and less than or equal to X, wherein the jth first reference signal resource and the second reference signal resource that has the first association relationship with the jth first reference signal resource satisfy a quasi-colocation (QCL) relationship; and the second reference signal resource that has the first association relationship with the jth first reference signal resource is determined based on a first reference signal resource received simultaneously with the jth first reference signal resource, and the first reference signal resource received simultaneously with the jth first reference signal resource is a resource in the X first reference signal resources. ### Claim 2 (depends on 1) The method according to claim 1, wherein that the second reference signal resource that has the first association relationship with the jth first reference signal resource is determined based on a first reference signal resource received simultaneously with the jth first reference signal resource comprises: the second reference signal resource that has the first association relationship with the jth first reference signal resource is determined based on a second reference signal resource that has a second association relationship with the simultaneously received first reference signal resource, and the simultaneously received first reference signal resource is the first reference signal resource received simultaneously with the jth first reference signal resource. ### Claim 3 (depends on 1) The method according to claim 1, wherein the reporting configuration information further indicates a first reference signal resource set and L second reference signal resource sets, the first reference signal resource set comprises M first reference signal resources, the first reference signal resource is used for channel measurement, an ith second reference signal resource set comprises Ni second reference signal resources, and the second reference signal resource is used for interference measurement, wherein M is an integer greater than 1, L is an integer greater than or equal to 1, i is an integer greater than or equal to 1 and less than or equal to L, and Ni is an integer greater than or equal to 1. ### Claim 4 (depends on 3) The method according to claim 3, wherein a second association relationship exists between a kth first reference signal resource in the M first reference signal resources and at least one second reference signal resource in the L second reference signal resource sets, wherein k is an integer greater than or equal to 1 and less than or equal to M. ### Claim 5 A channel state information transmission method, comprising: sending reporting configuration information, wherein the reporting configuration information indicates a reporting type, and the reporting type indicates group-based reporting; and receiving channel state information, wherein the channel state information comprises indexes of X first reference signal resources and Y pieces of channel quality information, X is an integer greater than or equal to 2, and Y is an integer greater than or equal to 1, wherein channel quality information of a jth first reference signal resource is determined based on the jth first reference signal resource and a second reference signal resource that has a first association relationship with the jth first reference signal resource, and the jth first reference signal resource is one of the X first reference signal resources, wherein the jth first reference signal resource and the second reference signal resource that has the first association relationship with the jth first reference signal resource satisfy a quasi-colocation (QCL) relationship; and the second reference signal resource that has the first association relationship with the jth first reference signal resource is determined based on a first reference signal resource reported in a same group as the jth first reference signal resource, and the first reference signal resource reported in the same group as the jth first reference signal resource is a resource in the X first reference signal resources. ### Claim 6 (depends on 5) The method according to claim 5, wherein that the second reference signal resource that has the first association relationship with the jth first reference signal resource is determined based on a first reference signal resource reported in a same group as the jth first reference signal resource comprises: the second reference signal resource that has the first association relationship with the jth first reference signal resource is determined based on a second reference signal resource that has a second association relationship with the first reference signal resource reported in the same group, and the first reference signal resource reported in the same group is the first reference signal resource reported in the same group as the jth first reference signal resource. ### Claim 7 (depends on 5) The method according to claim 5, wherein the reporting configuration information further indicates a resource configuration, the resource configuration indicates a first reference signal resource set and L second reference signal resource sets, the first reference signal resource set comprises M first reference signal resources, the first reference signal resource is used for channel measurement, an ith second reference signal resource set comprises Ni second reference signal resources, and the second reference signal resource is used for interference measurement, wherein M is an integer greater than 1, L is an integer greater than or equal to 1, i is an integer greater than or equal to 1 and less than or equal to L, and Na is an integer greater than or equal to 1. ### Claim 8 (depends on 7) The method according to claim 7, wherein a second association relationship exists between a kth first reference signal resource in the M first reference signal resources and at least one second reference signal resource in the L second reference signal resource sets, wherein k is an integer greater than or equal to 1 and less than or equal to M. ### Claim 9 A communication apparatus, comprising: a transceiver; at least one processor; and one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to cause the transceiver to: receive reporting configuration information, wherein the reporting configuration information indicates a reporting type, and the reporting type indicates group-based reporting, and; send channel state information, wherein the channel state information comprises indexes of X first reference signal resources and Y pieces of channel quality information, X is an integer greater than or equal to 2, and Y is an integer greater than or equal to 1, wherein channel quality information of a jth first reference signal resource is determined based on the jth first reference signal resource and a second reference signal resource that has a first association relationship with the jth first reference signal resource, the jth first reference signal resource is one of the X first reference signal resources, and j is an integer greater than or equal to 1 and less than or equal to X, wherein the jth first reference signal resource and the second reference signal resource that has the first association relationship with the ith first reference signal resource satisfy a quasi-colocation (QCL) relationship; and the second reference signal resource that has the first association relationship with the jth first reference signal resource is determined based on a first reference signal resource received simultaneously with the jth first reference signal resource, and the first reference signal resource received simultaneously with the jth first reference signal resource is a resource in the X first reference signal resources. ### Claim 10 (depends on 9) The apparatus according to claim 9, wherein that the second reference signal resource that has the first association relationship with the jth first reference signal resource is determined based on a first reference signal resource received simultaneously with the jth first reference signal resource comprises: the second reference signal resource that has the first association relationship with the jth first reference signal resource is determined based on a second reference signal resource that has a second association relationship with the simultaneously received first reference signal resource, and the simultaneously received first reference signal resource is the first reference signal resource received simultaneously with the jth first reference signal resource. ### Claim 11 (depends on 9) The apparatus according to claim 9, wherein the reporting configuration information further indicates a first reference signal resource set and L second reference signal resource sets, the first reference signal resource set comprises M first reference signal resources, the first reference signal resource is used for channel measurement, an ith second reference signal resource set comprises Ni second reference signal resources, and the second reference signal resource is used for interference measurement, wherein M is an integer greater than 1, L is an integer greater than or equal to 1, i is an integer greater than or equal to 1 and less than or equal to L, and Ni is an integer greater than or equal to 1. ### Claim 12 (depends on 11) The apparatus according to claim 11, wherein a second association relationship exists between a kth first reference signal resource in the M first reference signal resources and at least one second reference signal resource in the L second reference signal resource sets, wherein k is an integer greater than or equal to 1 and less than or equal to M.