# US 11,451,361 B2 · System and method for reporting signal quality information > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,451,361 B2 - Document ID: US11451361B2 - Status: Granted - Kind: B2 - Application number: 17/023,342 - Filed: 2020-09-16 - Published: 2021-04-01 - Granted: 2022-09-20 - Earliest claimed: 2019-09-27 - Assignees: Apple Inc. - Applicants: Apple Inc. - Inventors: Yushu Zhang; Yakun Sun; Fangli Xu; Yuqin Chen; Dawei Zhang; Haijing Hu; Chunhai Yao; Yuchul Kim; Hong He; Wei Zeng; Haitong Sun - Web page: https://patentgrep.com/patent/US11451361B2 ## CPC - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 5/0057: {Physical resource allocation for CQI} - H04B 7/0626: {Channel coefficients, e.g. channel state information [CSI]} - H04B 7/063: {Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection} - H04B 7/0632: {Channel quality parameters, e.g. channel quality indicator [CQI]} - H04L 5/0023: {Time-frequency-space} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0078: {Timing of allocation} - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04W 48/16: Discovering, processing access restriction or access information - H04B 7/0641: {Differential feedback} - H04L 5/001: {the frequencies being arranged in component carriers} - 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 5/0062: {Avoidance of ingress interference, e.g. ham radio channels} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04B: TRANSMISSION - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A wireless user equipment (UE) may employ any of various mechanisms for reporting signal quality measurements to a wireless network. The UE may impose a time delay between measurement and reporting, based on a delay parameter K. The UE may average measurements obtained at different measurement instances. The UE may employ any of various schemes for prioritizing transmission of one type of report over another, when temporal collisions occur between different types of report. The UE may employ a differential report that includes a state for indicating that a beam is not workable. The UE may employ a beam index that includes a state for indicating an invalid beam. A base station may receive a signal quality report and determine workability of a beam, e.g., by triggering a report of channel state information. ## Claims ### Claim 1 An apparatus comprising: at least one processor configured to cause a user equipment (UE) to: perform a measurement for a beam in a first time interval, wherein the measurement is based on a channel measurement resource (CMR) and an interference measurement resource (IMR); determine layer 1 signal to interference-and-noise ratio (L1 SINR) information based at least on the measurement; transmit the L1-SINR information to a base station in a second time interval, wherein if a measurement restriction is configured for the CMR, the UE performs the measurement corresponding to signal power and based on a most recent instance of the CMR; wherein if a measurement restriction is not configured for the CMR, the UE performs the measurement corresponding to signal power and based on one or more instances of the CMR prior to transmitting the L1-SINR information; wherein if a measurement restriction is configured for the IMR, the UE performs the measurement corresponding to at least one of interference and noise and based on a most recent instance of the IMR, and wherein if a measurement restriction is not configured for the IMR, the UE performs the measurement corresponding to at least one of interference and noise and based on one or more instances of the IMR prior to transmitting the L1-SINR information. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the at least one processor is further configured to cause the UE to: prior to said performing the measurement, receive a configuration message indicating the delay value K. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the at least one processor is further configured to cause the UE to: transmit a signal indicating the delay value K to the base station. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the delay value K is predefined. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the delay value K corresponds to (a) a subcarrier spacing of a bandwidth part carrying downlink resources used to perform the measurement, or (b) a subcarrier spacing of a bandwidth part used to transmit said beam quality information. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein the beam is a transmit beam associated with a downlink signal, and wherein the CMR and IMR are in the downlink signal. ### Claim 7 (depends on 1) The apparatus of claim 1, wherein the beam is a receive beam associated with a downlink signal, and wherein CMR and IMR are in the downlink signal. ### Claim 8 A wireless device, comprising: wireless communication circuitry; and at least one processor coupled to the wireless communication circuitry and configured to cause the wireless device to: perform a measurement for a beam in a first time interval, wherein the measurement is based on a channel measurement resource (CMR) and an interference measurement resource (IMR); determine layer 1 signal to interference-and-noise ratio (L1-SINR) information based at least on the measurement; transmit the L1-SINR information to a base station in a second time interval, wherein if a measurement restriction is configured for the CMR, the UE performs the measurement corresponding to signal power and based on a most recent instance of the CMR, wherein if a measurement restriction is not configured for the CMR, the UE performs the measurement corresponding to signal power and based on one or more instances of the CMR prior to transmitting the L1-SINR information, wherein if a measurement restriction is configured for the IMR, the UE performs the measurement corresponding to at least one of interference and noise and based on a most recent instance of the IMR, and wherein if a measurement restriction is not configured for the IMR, the UE performs the measurement corresponding to at least one of interference and noise and based on one or more instances of the IMR prior to transmitting the L1-SINR information. ### Claim 9 (depends on 8) The wireless device of claim 8, wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the at least one processor is further configured to cause the wireless device to: prior to said performing the measurement, receive a configuration message indicating the delay value K. ### Claim 10 (depends on 8) The wireless device of claim 8, wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the at least one processor is further configured to cause the wireless device to: transmit a signal indicating the delay value K to the base station. ### Claim 11 (depends on 8) The wireless device of claim 8, wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the delay value K is predefined. ### Claim 12 (depends on 8) The wireless device of claim 8, wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the delay value K corresponds to (a) a subcarrier spacing of a bandwidth part carrying downlink resources used to perform the measurement, or (b) a subcarrier spacing of a bandwidth part used to transmit said beam quality information. ### Claim 13 (depends on 8) The wireless device of claim 8, wherein the beam is a transmit beam associated with a downlink signal, and wherein the CMR and IMR are in the downlink signal. ### Claim 14 (depends on 8) The wireless device of claim 8, wherein the beam is a receive beam associated with a downlink signal, and wherein the CMR and IMR are in the downlink signal. ### Claim 15 (depends on 8) The wireless device of claim 8, wherein the first time interval and the second time interval are time slots. ### Claim 16 A non-transitory memory medium storing program instructions, wherein the program instructions, when executed by a processor, cause a wireless user equipment (UE) device to perform operations comprising: performing a measurement for a beam in a first time interval, wherein the measurement is based on a channel measurement resource (CMR) and an interference measurement resource (IMR); determining layer 1 signal to interference-and-noise ratio (L1-SINR) information based at least on the measurement; transmit the L1-SINR beam quality information to a base station in a second time interval, wherein if a measurement restriction is configured for the CMR, the UE performs the measurement corresponding to signal power and based on a most recent instance of the CMR, wherein if a measurement restriction is not configured for the CMR, the UE performs the measurement corresponding to signal power and based on one or more instances of the CMR prior to transmit the L1-SINR information, wherein if a measurement restriction is configured for the IMR, the UE performs the measurement corresponding to at least one of interference and noise and based on a most recent instance of the IMR, and wherein if a measurement restriction is not configured for the IMR, the UE performs the measurement corresponding to at least one of interference and noise and based on one or more instances of the IMR prior to transmit the L1-SINR information. ### Claim 17 (depends on 16) The non-transitory memory medium of claim 16, wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the operations further comprise: prior to said performing the measurement, receiving a configuration message indicating the delay value K. ### Claim 18 (depends on 16) The non-transitory memory medium of claim 16, wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the operations further comprise: transmitting a signal indicating the delay value K to the base station. ### Claim 19 (depends on 16) The non-transitory memory medium of claim 16, wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the delay value K corresponds to (a) a subcarrier spacing of a bandwidth part carrying downlink resources used to perform the measurement, or (b) a subcarrier spacing of a bandwidth part used to transmit said beam quality information. ### Claim 20 (depends on 16) The non-transitory memory medium of claim 16, wherein the beam is a transmit beam associated with a downlink signal, and wherein the CMR and IMR are in the downlink signal.