# US 12,192,803 B2 · Channel measurement method and terminal apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,192,803 B2 - Document ID: US12192803B2 - Status: Granted - Kind: B2 - Application number: 17/672,043 - Filed: 2022-02-15 - Published: 2022-06-02 - Granted: 2025-01-07 - Earliest claimed: 2019-08-16 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Chunxu Jiao; Pu Yuan; Jinfang Zhang; Lei Lu - Web page: https://patentgrep.com/patent/US12192803B2 ## CPC - H04W 24/06: Testing, {supervising or monitoring} using simulated traffic - H04B 7/0626: {Channel coefficients, e.g. channel state information [CSI]} - H04L 1/0026: {Transmission of channel quality indication} - H04L 1/1893: {Physical mapping arrangements (physical resource mapping in general H04L5/00)} - 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 5/0078: {Timing of allocation} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04W 72/20: Control channels or signalling for resource management - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P] - 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 This application provides a channel measurement method and an apparatus, which may be used in a field such as vehicle-to-everything V2X, smart internet of vehicles, autonomous driving, or an unmanned driving. In a sidelink channel report procedure, a transmit end apparatus for sidelink communication indicates one or more candidate time intervals to a receive end apparatus. The receive end apparatus may attempt to obtain an available PSSCH for sending a channel measurement report on one or more time domain resources corresponding to the one or more candidate time intervals. ## Claims ### Claim 1 A method, comprising: sending, by a first terminal apparatus, reference signal configuration information to a second terminal apparatus, the reference signal configuration information indicating a resource of a first reference signal, the first reference signal being used for channel measurement; sending, by the first terminal apparatus, channel report configuration information to the second terminal apparatus, the channel report configuration information comprising a candidate time interval, the candidate time interval being a time interval between a time domain resource for carrying trigger information and a time domain resource for carrying a channel measurement report, the trigger information triggering channel measurement; sending, by the first terminal apparatus, first trigger information to the second terminal apparatus; sending, by the first terminal apparatus, the first reference signal to the second terminal apparatus; and detecting, by the first terminal apparatus, a channel measurement report from the second terminal apparatus based on the candidate time interval, wherein detecting the channel measurement report comprises: receiving, by the first terminal apparatus, a first channel measurement report from the second terminal apparatus in a first time range, wherein the first time range has a duration that is a first candidate time interval starting from a moment for sending the first trigger information by the first terminal apparatus. ### Claim 2 (depends on 1) The method according to claim 1, wherein the candidate time interval is in a unit of slot. ### Claim 3 (depends on 1) The method according to claim 1, wherein: the first reference signal is a sidelink channel state information reference signal (SL CSI-RS); and the SL CSI-RS is aperiodic. ### Claim 4 (depends on 1) The method according to claim 1, wherein the reference signal configuration information and the channel report configuration information are carried in a radio resource control (RRC) message. ### Claim 5 (depends on 1) The method according to claim 1, wherein a time domain resource for carrying the first trigger information, as sent by the first terminal apparatus, is the same as a time domain resource for carrying the first reference signal, as sent by the first terminal apparatus. ### Claim 6 A method, comprising: receiving, by a second terminal apparatus, reference signal configuration information from a first terminal apparatus, the reference signal configuration information indicating a resource of a first reference signal, the first reference signal being used for channel measurement; receiving, by the second terminal apparatus, channel report configuration information from the first terminal apparatus, the channel report configuration information comprising a candidate time interval, the candidate time interval being a time interval between a time domain resource for carrying trigger information and a time domain resource for carrying a channel measurement report, the trigger information triggering channel measurement; receiving, by the second terminal apparatus, first trigger information from the first terminal apparatus; receiving, by the second terminal apparatus, the first reference signal from the first terminal apparatus; obtaining, by the second terminal apparatus, a first channel measurement report based on the first reference signal; determining, by the second terminal apparatus, a first time domain resource based on the channel report configuration information; and sending, by the second terminal apparatus using the first time domain resource, the first channel measurement report to the first terminal apparatus, wherein sending the first channel measurement report comprises: sending, by the second terminal apparatus, the first channel measurement report to the first terminal apparatus in a first time range, wherein the first time range has a duration that is a first candidate time interval starting from a moment for sending the first trigger information by the first terminal apparatus. ### Claim 7 (depends on 6) The method according to claim 6, wherein the candidate time interval is in a unit of slot. ### Claim 8 (depends on 6) The method according to claim 6, wherein: the first reference signal is a sidelink channel state information reference signal (SL CSI-RS); and the SL CSI-RS is aperiodic. ### Claim 9 (depends on 6) The method according to claim 6, wherein the reference signal configuration information and the channel report configuration information, as received by the second terminal apparatus, are carried in a radio resource control (RRC) message. ### Claim 10 (depends on 6) The method according to claim 6, wherein a time domain resource carrying the first trigger information, as received by the second terminal apparatus, is the same as a time domain resource carrying the first reference signal, as received by the second terminal apparatus. ### Claim 11 An apparatus, comprising: one or more processors; and a non-transitory memory configured to store program instructions that are executable by the one or more processors, wherein the program instructions include instructions that, when executed by the one or more processors, cause the apparatus to: send reference signal configuration information to a second terminal apparatus, the reference signal configuration information indicating a resource of a first reference signal, the first reference signal being used for channel measurement; send channel report configuration information to the second terminal apparatus, the channel report configuration information indicating a candidate time interval, the candidate time interval being a time interval between a time domain resource for carrying trigger information and a time domain resource for carrying a channel measurement report, the trigger information triggering channel measurement; send first trigger information to the second terminal apparatus; send the first reference signal to the second terminal apparatus; and detect a channel measurement report from the second terminal apparatus based on the candidate time interval, wherein to detect the channel measurement report, the instructions, when executed by the one or more processors, cause the apparatus to: receive a first channel measurement report from the second terminal apparatus in a first time range, wherein the first time range has a duration that is a first candidate time interval starting from a moment for sending the first trigger information. ### Claim 12 (depends on 11) The apparatus according to claim 11, wherein the candidate time interval is in a unit of slot. ### Claim 13 (depends on 11) The apparatus according to claim 11, wherein: the first reference signal is a sidelink channel state information reference signal (SL CSI-RS); and the SL CSI-RS is aperiodic. ### Claim 14 (depends on 11) The apparatus according to claim 11, wherein the reference signal configuration information and the channel report configuration information, as sent, are carried in a radio resource control (RRC) message. ### Claim 15 (depends on 11) The apparatus according to claim 11, wherein a time domain resource for carrying the first trigger information, as sent, is the same as a time domain resource for carrying the first reference signal, as sent. ### Claim 16 An apparatus, comprising: one or more processors, and a non-transitory memory configured to store program instructions that are executable by the one or more processors, wherein the program instructions include instructions that, when executed by the one or more processors, cause the apparatus to: receive reference signal configuration information from a first terminal apparatus, the reference signal configuration information indicating a resource of a first reference signal, the first reference signal being used for channel measurement; receive channel report configuration information from the first terminal apparatus, the channel report configuration information indicating a candidate time interval, the candidate time interval being a time interval between a time domain resource for carrying trigger information and a time domain resource for carrying a channel measurement report, the trigger information triggering channel measurement; receive first trigger information from the first terminal apparatus; receive the first reference signal from the first terminal apparatus; obtain a first channel measurement report based on the first reference signal; determine a first time domain resource based on the channel report configuration information; and send, using the first time domain resource, the first channel measurement report to the first terminal apparatus, wherein to send the first channel measurement report, the instructions, when executed by the one or more processors, cause the apparatus to: send the first channel measurement report to the first terminal apparatus in a first time range, wherein the first time range has a duration that is a first candidate time interval starting from a moment for sending the first trigger information by the first terminal apparatus. ### Claim 17 (depends on 16) The apparatus according to claim 16, wherein the candidate time interval is in a unit of slot. ### Claim 18 (depends on 16) The apparatus according to claim 16, wherein: the first reference signal is a sidelink channel state information reference signal (SL CSI-RS); and the SL CSI-RS is aperiodic. ### Claim 19 (depends on 16) The apparatus according to claim 16, wherein the reference signal configuration information and the channel report configuration information, as received, are carried in a radio resource control (RRC) message. ### Claim 20 (depends on 16) The apparatus according to claim 16, wherein a time domain resource carrying the first trigger information, as received, is the same as a time domain resource carrying the first reference signal, as received.