# US 2021/0344367 A1 · Digital post-distortion signaling > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0344367 A1 - Document ID: US20210344367A1 - Status: Published application - Kind: A1 - Application number: 17/302,167 - Filed: 2021-04-26 - Published: 2021-11-04 - Earliest claimed: 2020-04-30 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Guy WOLF; Igor GUTMAN; Sharon LEVY; Gideon Shlomo KUTZ; Assaf TOUBOUL; Noam ZACH - Web page: https://patentgrep.com/patent/US20210344367A1 ## CPC - H04B 1/0475: {with means for limiting noise, interference or distortion (H04B1/0483 takes precedence)} - H03F 1/3247: {using feedback acting on predistortion circuits (H03F1/3264 takes precedence)} - H04W 8/22: Processing or transfer of terminal data, e.g. status or physical capabilities - H04W 8/24: Transfer of terminal data - H03F 2200/451: the amplifier being a radio frequency amplifier - H04B 2001/0425: {with linearisation using predistortion} - H04B: TRANSMISSION - H03F: AMPLIFIERS - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may transmit, to a base station (BS), UE capability information including transmission non-linearity information related to a digital post-distortion processing capability; and transmit, to the BS and after transmitting the UE capability information, signaling for digital post-distortion processing. Numerous other aspects are provided. ## Claims ### Claim 1 A user equipment (UE) for wireless communication, comprising: a memory; and one or more processors, coupled to the memory, configured to: transmit, to a base station (BS), UE capability information including transmission non-linearity information related to a digital post-distortion processing capability; and transmit, to the BS and after transmitting the UE capability information, signaling for digital post-distortion processing. ### Claim 2 (depends on 1) The UE of claim 1, wherein the UE capability information identifies a non-linearity compensation capability. ### Claim 3 (depends on 2) The UE of claim 2, wherein the UE capability information identifies a magnitude of non-linearity that is compensable using the non-linearity compensation capability. ### Claim 4 (depends on 1) The UE of claim 1, wherein the one or more processors are further configured to: receive, from the BS, a signal compression capability indication; and wherein the one or more processors, to transmit the signaling for digital post-distortion processing, are configured to: transmit compressed signaling based at least in part on receiving the signal compression capability indication. ### Claim 5 (depends on 1) The UE of claim 1, wherein the one or more processors are further configured to: communicate with the BS to identify a digital post-distortion processing set of kernels for digital post-distortion processing; and wherein the one or more processors, to transmit the signaling, are configured to: transmit signaling for processing using a digital post-distortion processing kernel not larger than the identified digital post-distortion processing set of kernels. ### Claim 6 (depends on 1) The UE of claim 1, wherein the signaling is processed for non-linearity estimation and memory estimation to recover information conveyed by the signaling. ### Claim 7 (depends on 1) The UE of claim 1, wherein the UE capability information is a physical parameter indicating whether the UE supports uplink transmission power amplifier non-linearity. ### Claim 8 (depends on 1) The UE of claim 1, wherein the UE capability information is included in a bit map. ### Claim 9 (depends on 1) The UE of claim 1, wherein the UE capability information includes information identifying a bandwidth parameter indicating a memory tap configuration. ### Claim 10 (depends on 1) The UE of claim 1, wherein the UE capability information includes information identifying a digital post-distortion processing model to use for processing the signaling. ### Claim 11 A base station (BS) for wireless communication, comprising: a memory; and one or more processors, coupled to the memory, configured to: receive, from a user equipment (UE), UE capability information including transmission non-linearity information related to a digital post-distortion processing capability; receive, from the UE and after receiving the UE capability information, signaling for digital post-distortion processing; and perform post-distortion processing on the signaling based at least in part on receiving the signaling and based at least in part on the UE capability information. ### Claim 12 (depends on 11) The BS of claim 11, wherein the one or more processors are further configured to: set a post-distortion processing configuration based at least in part on the transmission non-linearity information. ### Claim 13 (depends on 11) The BS of claim 11, wherein the one or more processors are further configured to: transmit information indicating the digital post-distortion processing capability based at least in part on receiving the UE capability information; and wherein the one or more processors, to receive the signaling for digital post-distortion processing, are configured to: receive the signaling based at least in part on transmitting the information indicating the digital post-distortion processing capability. ### Claim 14 (depends on 11) The BS of claim 11, wherein the UE capability information identifies a non-linearity compensation capability. ### Claim 15 (depends on 14) The BS of claim 14, wherein the UE capability information identifies a magnitude of the non-linearity compensation capability. ### Claim 16 (depends on 11) The BS of claim 11, wherein the one or more processors are further configured to: transmit a signal compression capability indication; and wherein the one or more processors, to receive the signaling for digital post-distortion processing, are configured to: receive compressed signaling based at least in part on transmitting the signal compression capability indication. ### Claim 17 (depends on 11) The BS of claim 11, wherein the one or more processors are further configured to: communicate with the UE to identify a digital post-distortion processing set of kernels for digital post-distortion processing; and wherein the one or more processors, to perform post-distortion processing, are configured to: perform post-distortion processing using a digital post-distortion processing kernel not larger than the identified digital post-distortion processing set of kernels. ### Claim 18 (depends on 11) The BS of claim 11, wherein the signaling is processed for non-linearity estimation and memory estimation to recover information conveyed by the signaling. ### Claim 19 (depends on 11) The BS of claim 11, wherein the UE capability information is a physical parameter indicating whether the UE supports uplink transmission power amplifier non-linearity. ### Claim 20 (depends on 11) The BS of claim 11, wherein the UE capability information is included in a bit map. ### Claim 21 (depends on 11) The BS of claim 11, wherein the UE capability information includes information identifying a bandwidth parameter indicating a memory tap configuration. ### Claim 22 (depends on 11) The BS of claim 11, wherein the UE capability information includes information identifying a digital post-distortion processing model to use for processing the signaling. ### Claim 23 A method of wireless communication performed by a user equipment (UE), comprising: transmitting, to a base station (BS), UE capability information including transmission non-linearity information related to a digital post-distortion processing capability; and transmitting, to the BS and after transmitting the UE capability information, signaling for digital post-distortion processing. ### Claim 24 (depends on 23) The method of claim 23, wherein the UE capability information identifies a non-linearity compensation capability. ### Claim 25 (depends on 24) The method of claim 24, wherein the UE capability information identifies a magnitude of non-linearity that is compensable using the non-linearity compensation capability. ### Claim 26 (depends on 23) The method of claim 23, further comprising: receiving, from the BS, a signal compression capability indication; and wherein transmitting the signaling for digital post-distortion processing comprises: transmitting compressed signaling based at least in part on receiving the signal compression capability indication. ### Claim 27 A method of wireless communication performed by a base station (BS), comprising: receiving, from a user equipment (UE), UE capability information including transmission non-linearity information related to a digital post-distortion processing capability; receiving, from the UE and after receiving the UE capability information, signaling for digital post-distortion processing; and performing post-distortion processing on the signaling based at least in part on receiving the signaling and based at least in part on the UE capability information. ### Claim 28 (depends on 27) The method of claim 27, further comprising: setting a post-distortion processing configuration based at least in part on the transmission non-linearity information. ### Claim 29 (depends on 27) The method of claim 27, further comprising: transmitting information indicating the digital post-distortion processing capability based at least in part on receiving the UE capability information; and wherein receiving the signaling for digital post-distortion processing comprises: receiving the signaling based at least in part on transmitting the information indicating the digital post-distortion processing capability. ### Claim 30 (depends on 27) The method of claim 27, wherein the UE capability information identifies a non-linearity compensation capability.