# US 11,910,218 B2 · Beam reporting method and communications apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,910,218 B2 - Document ID: US11910218B2 - Status: Granted - Kind: B2 - Application number: 17/324,712 - Filed: 2021-05-19 - Published: 2021-09-02 - Granted: 2024-02-20 - Earliest claimed: 2018-11-19 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Hongzhe Shi; Shibin Ge; Xiaoyan Bi - Web page: https://patentgrep.com/patent/US11910218B2 ## CPC - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04B 7/024: Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems - H04B 7/063: {Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection} - H04B 7/06952: {Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping} - H04B 7/088: {using beam selection} - H04L 5/0023: {Time-frequency-space} - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - 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} - H04W 72/046: {the resource being in the space domain, e.g. beams} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 5/0035: {Resource allocation in a cooperative multipoint environment} - 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 A beam reporting method and a communications apparatus is provided. The method includes that a terminal device receives first information, where the first information is used to configure at least two reference signal resource groups; and sending, by the terminal device, reporting information, where the reporting information includes related information of at least two beams, the at least two beams are used to send reference signals carried on at least two reference signal resources, and the reference signals sent by using the at least two beams can be simultaneously received by the terminal device, where the at least two reference signal resources are respectively from the at least two reference signal resource groups. In this application, related information of beams of at least two transmission points is reported through one time of beam scanning, to implement beam training in a CoMP system. ## Claims ### Claim 1 A beam reporting method, comprising: receiving, by a terminal device, first information, wherein the first information configures at least two reference signal resource groups; and sending, by the terminal device, reporting information, wherein the reporting information comprises related information of at least two beams, the at least two beams are used to send reference signals carried on at least two reference signal resources, and the reference signals sent by using the at least two beams are simultaneously received by the terminal device, wherein the at least two reference signal resources are respectively from the at least two reference signal resource groups. ### Claim 2 (depends on 1) The method according to claim 1, wherein before the sending, by the terminal device, reporting information, the method further comprises: receiving, by the terminal device, indication information sent by a network device, wherein the indication information indicates that a multi-beam grouping-based reporting mode is in an on state, and that the multi-beam grouping-based reporting mode is in the on state indicates that the terminal device needs to report the related information of the at least two beams. ### Claim 3 (depends on 1) The method according to claim 1, wherein a reference signal resource group is a reference signal resource set, and the at least two reference signal resource groups are configured by directly configuring, activating, or triggering at least two reference signal resource sets based on the first information. ### Claim 4 (depends on 1) The method according to claim 1, wherein the first information comprises quasi co-location (QCL) configuration information of reference signal resources in a same reference signal resource set, and reference signal resources with same QCL configuration information are configured as a same reference signal resource group. ### Claim 5 (depends on 1) The method according to claim 1, wherein the first information is carried in one or more of the following signaling: radio resource control (RRC) signaling, a media access control control element (MAC-CE), and downlink control information (DCI). ### Claim 6 (depends on 1) The method according to claim 1, wherein the first information is resource setting information, and the resource setting information configures the at least two reference signal resource groups by configuring identifier sequence numbers of reference signal resources in a same reference signal resource set. ### Claim 7 A communications apparatus, comprising 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 apparatus to implement: receiving first information, wherein the first information configures at least two reference signal resource groups; and sending reporting information, wherein the reporting information comprises related information of at least two beams, the at least two beams are used to send reference signals carried on at least two reference signal resources, and the reference signals sent by using the at least two beams are simultaneously received by the communications apparatus, wherein the at least two reference signal resources are respectively from the at least two reference signal resource groups. ### Claim 8 (depends on 7) The communications apparatus according to claim 7, wherein the at least one processor, and the one or more memories coupled to the at least one processor and storing the programming instructions for the execution by the at least one processor to cause the apparatus to further implement: receiving indication information sent by a network device, wherein the indication information indicates that a multi-beam grouping-based reporting mode is in an on state, and that the multi-beam grouping-based reporting mode is in the on state indicates that a terminal device needs to report the related information of the at least two beams. ### Claim 9 (depends on 7) The communications apparatus according to claim 7, wherein a reference signal resource group is a reference signal resource set, and the at least two reference signal resource groups are configured by directly configuring, activating, or triggering at least two reference signal resource sets based on the first information. ### Claim 10 (depends on 7) The communications apparatus according to claim 7, wherein the first information comprises quasi co-location (QCL) configuration information of reference signal resources in a same reference signal resource set, and reference signal resources with same QCL configuration information are configured as a same reference signal resource group. ### Claim 11 (depends on 7) The communications apparatus according to claim 7, wherein the first information is carried in one or more of the following signaling: radio resource control RRC signaling, a media access control control element (MAC-CE), and downlink control information (DCI). ### Claim 12 (depends on 7) The communications apparatus according to claim 7, wherein the first information is resource setting information, and the resource setting information configures the at least two reference signal resource groups by configuring identifier sequence numbers of reference signal resources in a same reference signal resource set. ### Claim 13 (depends on 7) The communications apparatus according to claim 7, wherein the communications apparatus is a terminal device. ### Claim 14 A communications apparatus, comprising 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 apparatus to implement: sending first information, wherein the first information configures at least two reference signal resource groups; and receiving reporting information sent by a terminal device, wherein the reporting information comprises related information of at least two beams, the at least two beams are used to send reference signals carried on at least two reference signal resources, and the reference signals sent by using the at least two beams are simultaneously received by the terminal device, wherein the at least two reference signal resources are respectively from the at least two reference signal resource groups. ### Claim 15 (depends on 14) The communications apparatus according to claim 14, wherein the at least one processor, and the one or more memories coupled to the at least one processor and storing the programming instructions for the execution by the at least one processor to cause the apparatus to further implement: sending indication information to the terminal device, wherein the indication information indicates that a multi-beam reporting mode is in an on state, and that the multi-beam reporting mode is in the on state indicates that the terminal device needs to report the related information of the at least two beams. ### Claim 16 (depends on 14) The communications apparatus according to claim 14, wherein a reference signal resource group is a reference signal resource set, and the at least two reference signal resource groups are configured by directly configuring, activating, or triggering at least two reference signal resource sets based on the first information. ### Claim 17 (depends on 14) The communications apparatus according to claim 14, wherein the first information comprises quasi co-location (QCL) configuration information of reference signal resources in a same reference signal resource set, and reference signal resources with same QCL configuration information are configured as a same reference signal resource group. ### Claim 18 (depends on 14) The communications apparatus according to claim 14, wherein the first information is carried in one or more of the following signaling: radio resource control RRC signaling, a media access control control element (MAC-CE), and downlink control information (DCI). ### Claim 19 (depends on 14) The communications apparatus according to claim 14, wherein the first information is resource setting information, and the resource setting information configures the at least two reference signal resource groups by configuring identifier sequence numbers of reference signal resources in a same reference signal resource set. ### Claim 20 (depends on 14) The communications apparatus according to claim 14, wherein the communications apparatus is a network device.