# US 10,771,219 B2 · Souding reference signal sending and receiving method, apparatus, and non-transitory computer-readable medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,771,219 B2 - Document ID: US10771219B2 - Status: Granted - Kind: B2 - Application number: 16/654,797 - Filed: 2019-10-16 - Published: 2020-02-13 - Granted: 2020-09-08 - Earliest claimed: 2017-11-17 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Yi Qin; Binbin Zhang; Zhongfeng Li; Min Zhang - Web page: https://patentgrep.com/patent/US10771219B2 ## CPC - H04B 7/0691: {using subgroups of transmit antennas} - 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)} - H04B 7/0874: {using subgroups of receive antennas} - H04L 5/0023: {Time-frequency-space} - H04L 5/0042: {Intra-user or intra-terminal allocation} - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04L 5/0058: {Allocation criteria} - H04L 5/0078: {Timing of allocation} - H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 72/044: based on the type of the allocated resource - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/1268: of uplink data flows - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04B 7/06: at the transmitting station - H04L 5/0005: {Time-frequency} - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A signal sending and receiving method includes: receiving, by a terminal device, at least one piece of resource configuration information for determining N reference signal resource groups, and each of the N reference signal resource groups includes at least one reference signal resource; and sending a reference signal on a resource in an ith reference signal resource group in the N reference signal resource groups by using a jth antenna group corresponding to the ith reference signal resource group, where the jth antenna group includes at least one antenna. The N reference signal resource groups correspond to N antenna groups, and any two of the N antenna groups are different. ## Claims ### Claim 1 A signal sending method, comprising: receiving at least one piece of resource configuration information for configuring at least one sounding reference signal (SRS) resource set, wherein each SRS resource set of the at least one SRS resource set comprises one or more SRS resources, and wherein different SRS resources comprised in a same SRS resource set occupy different symbols and correspond to different user equipment (UE) antenna ports; and sending an SRS on at least one SRS resource of the at least one SRS resource set; wherein a guard period between two SRS resources in a same SRS resource set is greater than or equal to Y symbols, wherein the value of Y and a subcarrier spacing satisfy at least one of: the value of Y is 1 and the subcarrier spacing is 15 kHz; the value of Y is 1 and the subcarrier spacing is 30 kHz; the value of Y is 1 and the subcarrier spacing is 60 kHz; or the value of Y is 2 and the subcarrier spacing is 120 kHz. ### Claim 2 (depends on 1) The method according to claim 1, wherein the method further comprises: receiving at least one piece of first information for indicating whether SRS to be transmitted on all SRS resources in one SRS resource set are to be sent in an antenna switching manner. ### Claim 3 (depends on 1) The method according to claim 1, wherein the method further comprises: receiving at least one piece of first information for indicating whether SRSs are used to measure a channel for antenna selection. ### Claim 4 (depends on 1) The method according to claim 1, wherein the method further comprises: determining the value of Y based on the subcarrier spacing, wherein the subcarrier spacing is a subcarrier spacing for sending the SRS; wherein the value of Y corresponds to the subcarrier spacing for sending the SRS. ### Claim 5 (depends on 1) The method according to claim 1, wherein the method further comprises: determining, based on an identifier of an SRS resource and an identifier of a UE antenna port, a UE antenna port corresponding to the SRS resource. ### Claim 6 An apparatus, comprising: one or more processors, and a non-transitory storage medium configured to store program instructions; wherein the program instructions, when executed by the one or more processors, facilitate: receiving at least one piece of resource configuration information for configuring at least one sounding reference signal (SRS) resource set, wherein each SRS resource set of the at least one SRS resource set comprises one or more SRS resources, and wherein different SRS resources comprised in a same SRS resource set occupy different symbols and correspond to different user equipment (UE) antenna ports; and sending an SRS on at least one SRS resource of the at least one SRS resource set; wherein a guard period between two SRS resources in a same SRS resource set is greater than or equal to Y symbols, wherein the value of Y and a subcarrier spacing satisfies at least one of: the value of Y is 1 and the subcarrier spacing is 15 kHz; the value of Y is 1 and the subcarrier spacing is 30 kHz; the value of Y is 1 and the subcarrier spacing is 60 kHz; or the value of Y is 2 and the subcarrier spacing is 120 kHz. ### Claim 7 (depends on 6) The apparatus according to claim 6, wherein the program instructions, when executed by the one or more processors, further facilitate: receiving at least one piece of first information for indicating whether SRS to be transmitted on all SRS resources in one SRS resource set are to be sent in an antenna switching manner. ### Claim 8 (depends on 6) The apparatus according to claim 6, wherein the program instructions, when executed by the one or more processors, further facilitate: receiving at least one piece of first information for indicating whether SRSs are used to measure a channel for antenna selection. ### Claim 9 (depends on 6) The apparatus according to claim 6, wherein the program instructions, when executed by the one or more processors, further facilitate: determining the value of Y based on the subcarrier spacing, wherein the subcarrier spacing is a subcarrier spacing for sending the SRS; wherein the value of Y corresponds to the subcarrier spacing for sending the SRS. ### Claim 10 (depends on 6) The apparatus according to claim 6, wherein the program instructions, when executed by the one or more processors, further facilitate: determining, based on an identifier of an SRS resource and an identifier of a UE antenna port, a UE antenna port corresponding to the SRS resource. ### Claim 11 A non-transitory computer-readable medium having program instructions stored thereon, wherein the program instructions, when executed by a processor of a user equipment (UE), facilitate: receiving at least one piece of resource configuration information for configuring at least one sounding reference signal (SRS) resource set, wherein each SRS resource set comprises one or more SRS resources, and wherein different SRS resources comprised in a same SRS resource set occupy different symbols and correspond to different UE antenna ports; and sending an SRS on at least one SRS resource of the at least one SRS resource set; wherein a guard period between two SRS resources in a same SRS resource set is greater than or equal to Y symbols, wherein the value of Y and a subcarrier spacing satisfies at least one of: the value of Y is 1 and the subcarrier spacing is 15 kHz; the value of Y is 1 and the subcarrier spacing is 30 kHz; the value of Y is 1 and the subcarrier spacing is 60 kHz; or the value of Y is 2 and the subcarrier spacing is 120 kHz. ### Claim 12 (depends on 11) The non-transitory computer-readable medium according to claim 11, wherein the instructions, when executed by the processor of the UE, further facilitate: receiving at least one piece of first information for indicating whether SRS to be transmitted on all SRS resources in one SRS resource set are to be sent in an antenna switching manner. ### Claim 13 (depends on 11) The non-transitory computer-readable medium according to claim 11, wherein the instructions, when executed by the processor of the UE, further facilitate: receiving at least one piece of first information for indicating whether SRSs are used to measure a channel for antenna selection. ### Claim 14 (depends on 11) The non-transitory computer-readable medium according to claim 11, wherein the instructions, when executed by the processor of the UE, further facilitate: determining the value of Y based on the subcarrier spacing, wherein the subcarrier spacing is a subcarrier spacing for sending the SRS; wherein the value of Y corresponds to the subcarrier spacing for sending the SRS. ### Claim 15 (depends on 11) The non-transitory computer-readable medium according to claim 11, wherein the instructions, when executed by the processor of the UE, further facilitate: determining, based on an identifier of an SRS resource and an identifier of a UE antenna port, a UE antenna port corresponding to the SRS resource.