# US 2025/0159705 A1 · Support of multi-panel uplink transmission > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0159705 A1 - Document ID: US20250159705A1 - Status: Published application - Kind: A1 - Application number: 18/834,601 - Filed: 2022-01-30 - Published: 2025-05-15 - Earliest claimed: 2022-01-30 - Assignees: Lenovo (Beijing) Limited - Applicants: Lenovo (Beijing) Limited - Inventors: BINGCHAO LIU - Web page: https://patentgrep.com/patent/US20250159705A1 ## CPC - H04W 72/51: based on terminal or device properties - H04B 7/04026: {with codebook-based beamforming} - H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ] - H04L 5/0023: {Time-frequency-space} - 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} - H04W 8/22: Processing or transfer of terminal data, e.g. status or physical capabilities - H04W 16/28: using beam steering - H04W 72/1268: of uplink data flows - H04W 72/231: the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling - 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 Methods and apparatuses for support of multi-panel uplink (UL) transmission are disclosed. In one embodiment, a user equipment (UE) comprises a processor and a transceiver coupled to the processor, wherein the processor is configured to cause the UE to: transmit, via the transceiver, one or two UE capability value set index or indices in a beam report, where each UE capability value set index indicates a supported UE capability value set; and determine Sounding Reference Signal (SRS) resource(s) used for codebook transmission after receiving an acknowledgement for the transmitted UE capability value set index or indices. ## Claims ### Claim 1 A user equipment (UE) for wireless communication, the UE comprising: a processor; a memory coupled to the processor; and a transceiver coupled to the processor, wherein the processor is configured to cause the UE to: transmit, via the transceiver, one or two UE capability value set index or indices in a beam report, where each UE capability value set index indicates a supported UE capability value set; and determine Sounding Reference Signal (SRS) resource(s) used for codebook transmission after receiving an acknowledgement for the transmitted UE capability value set index or indices. ### Claim 2 (depends on 1) The UE of claim 1, wherein, when the beam report is carried by a Physical Uplink Shared Channel (PUSCH) transmission, the acknowledgement for the transmitted UE capability value set index or indices is received when a Physical Downlink Control Channel (PDCCH) transmission with a Downlink Control Information (DCI) format scheduling a PUSCH transmission with a same Hybrid Automatic Repeat request (HARQ) process number as for the PUSCH transmission carrying the beam report and having a toggled New data indicator (NDI) field value is received. ### Claim 3 (depends on 1) The UE of claim 1, wherein, when the beam report is carried by a Physical Uplink Control Channel (PUCCH) transmission, the acknowledgement for the transmitted UE capability value set index or indices is received when a PDCCH transmission with a DCI format scheduling a PUCCH transmission with a same PUCCH resource ID as the PUCCH transmission carrying the beam report within a time window beginning from the last symbol of the PUCCH transmission carrying the reported UE capability value set index or indices is received. ### Claim 4 (depends on 1) The UE of claim 1, wherein, after K symbols or K′ ms from a last symbol of PDCCH transmission containing the acknowledgement for the transmitted UE capability value set index or indices, where K or K′ is a specified value or a configured value: if one SRS resource set for codebook containing multiple SRS resources with different numbers of SRS ports is configured, the SRS resource(s) with the same number(s) of SRS ports as that or those indicated in the UE capability value set(s) indicated by the one or two UE capability value set index or indices are activated, and the other SRS resources within the one SRS resource set are deactivated; and if multiple SRS resource sets for codebook, each of which is with a different number of SRS ports, are configured, the SRS resources within the SRS resource set(s) with the same number(s) of SRS ports as that or those indicated in the UE capability value sets indicated by the one or two UE capability value set index or indices are activated, and the SRS resources within other SRS resource set(s) are deactivated. ### Claim 5 (depends on 4) The UE of claim 4, wherein, a bitwidth of SRS resource indicator field in DCI format 0_1 or 0_2 indicating SRS resource used for the scheduled or activated PUSCH transmission is determined by the total number of activated SRS resources. ### Claim 6 (depends on 4) The UE of claim 4, wherein, a bitwidth of SRS resource indicator field in DCI format 0_1 or 0_2 indicating SRS resource used for the scheduled or activated PUSCH transmission is determined by the total number of SRS resources within the configured SRS resource set(s) for codebook. ### Claim 7 (depends on 4) The UE of claim 4, wherein, the SRI codepoint(s) indicated by DCI format 0_1 or 0_2 are mapped to the activated SRS resource(s). ### Claim 8 (depends on 6) The UE of claim 6, wherein, the processor is configured to only expect to receive, via the transceiver, DCI format 0_1 or 0_2 indicating an SRI codepoint that is mapped to an activated SRS resource. ### Claim 9 (depends on 1) The UE of claim 1, wherein, the processor is further configured to cause the UE to transmit, via the transceiver, one or multiple supported UE capability value sets, wherein each supported UE capability value set indicates a maximum number of supported SRS ports. ### Claim 10 (depends on 5) The UE of claim 5, wherein, the processor is further configured to cause the UE to report, via the transceiver, a capability on the value of K or K′. ### Claim 11 (depends on 10) The UE of claim 10, wherein, the value of K is reported per sub-carrier space (SCS). ### Claim 12 A method for wireless communication by a user equipment (UE), the method comprising: transmitting one or two UE capability value set index or indices in a beam report, where each UE capability value set index indicates a supported UE capability value set; and determining Sounding Reference Signal (SRS) resource(s) used for codebook transmission after receiving an acknowledgement for the transmitted UE capability value set index or indices. ### Claim at position 13 -15. (canceled) ### Claim 16 (depends on 12) The method of claim 12, further comprising transmitting one or multiple supported UE capability value sets, wherein each supported UE capability value set indicates a maximum number of supported SRS ports. ### Claim 17 A processor for wireless communication, the processor configured for: transmit, via the transceiver, one or two UE capability value set index or indices in a beam report, where each UE capability value set index indicates a supported UE capability value set; and determine Sounding Reference Signal (SRS) resource(s) used for codebook transmission after receiving an acknowledgement for the transmitted UE capability value set index or indices. ### Claim 18 (depends on 17) The processor of claim 17, wherein, when the beam report is carried by a Physical Uplink Shared Channel (PUSCH) transmission, the acknowledgement for the transmitted UE capability value set index or indices is received when a Physical Downlink Control Channel (PDCCH) transmission with a Downlink Control Information (DCI) format scheduling a PUSCH transmission with a same Hybrid Automatic Repeat request (HARQ) process number as for the PUSCH transmission carrying the beam report and having a toggled New data indicator (NDI) field value is received. ### Claim 19 (depends on 17) The processor of claim 17, wherein, when the beam report is carried by a Physical Uplink Control Channel (PUCCH) transmission, the acknowledgement for the transmitted UE capability value set index or indices is received when a PDCCH transmission with a DCI format scheduling a PUCCH transmission with a same PUCCH resource ID as the PUCCH transmission carrying the beam report within a time window beginning from the last symbol of the PUCCH transmission carrying the reported UE capability value set index or indices is received. ### Claim 20 (depends on 17) The processor of claim 17, further configured to transmit at least one supported UE capability value set, wherein each supported UE capability value set indicates a maximum number of supported SRS ports. ### Claim 21 A base unit for wireless communication, the base unit comprising: a processor; a memory coupled to the processor; and a transceiver coupled to the processor, wherein the processor is configured to cause the base unit to: receive, via the transceiver, one or two user equipment (UE) capability value set index or indices in a beam report, where each UE capability value set index indicates a supported UE capability value set; and determine Sounding Reference Signal (SRS) resource(s) used for codebook transmission after transmitting an acknowledgement for the received UE capability value set index or indices. ### Claim 22 (depends on 21) The base unit of claim 21, wherein, when the beam report is carried by a Physical Uplink Shared Channel (PUSCH) transmission, the acknowledgement for the received UE capability value set index or indices is transmitted when a Physical Downlink Control Channel (PDCCH) transmission with a Downlink Control Information (DCI) format scheduling a PUSCH transmission with a same Hybrid Automatic Repeat request (HARQ) process number as for the PUSCH transmission carrying the beam report and having a toggled New data indicator (NDI) field value is transmitted. ### Claim 23 (depends on 21) The base unit of claim 21, wherein, when the beam report is carried by a Physical Uplink Control Channel (PUCCH) transmission, the acknowledgement for the received UE capability value set index or indices is transmitted when a PDCCH transmission with a DCI format scheduling a PUCCH transmission with a same PUCCH resource ID as the PUCCH transmission carrying the beam report within a time window beginning from the last symbol of the PUCCH transmission carrying the reported UE capability value set index or indices is transmitted.