# US 11,115,086 B1 · Reference signal port allocation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,115,086 B1 - Document ID: US11115086B1 - Status: Granted - Kind: B1 - Application number: 17/009,366 - Filed: 2020-09-01 - Granted: 2021-09-07 - Earliest claimed: 2020-09-01 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Ran Berliner; Shay Landis; Yehonatan Dallal; Ronen Shaked; Assaf Touboul - Web page: https://patentgrep.com/patent/US11115086B1 ## CPC - H04B 7/022: Site diversity; Macro-diversity (using two or more spaced independent antennas H04B7/04) - H04B 7/028: {Spatial transmit diversity using a single antenna at the transmitter} - H04B 7/06952: {Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping} - H04B 7/0697: {using spatial multiplexing} - H04B 7/0857: {using maximum ratio combining techniques, e.g. signal-to- interference ratio [SIR], received signal strenght indication [RSS]} - H04B 7/0874: {using subgroups of receive antennas} - H04L 5/0025: {Spatial division following the spatial signature of the channel} - H04L 27/0014: {Carrier regulation (of chaotic carriers H04L27/001; for multicarrier receivers H04L27/2657)} - H04L 27/2657: {Carrier synchronisation} - H04L 27/2675: {Pilot or known symbols} - H04L 27/261: {Details of reference signals} - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive multiple spatial dimension multiplexed (SDM) communications via a single antenna panel of the UE. The UE may perform phase noise correction for the multiple SDM communications based at least in part on phase tracking reference signals received via a single communication of the multiple SDM communications. Numerous other aspects are provided. ## Claims ### Claim 1 A method of wireless communication performed by a user equipment (UE), comprising: receiving multiple spatial dimension multiplexed (SDM) communications associated with multiple transmission reception points (TRPs) via a single antenna panel of the UE; estimating a phase noise based on phase tracking reference signals (PT-RSs) received via a single communication of the multiple SDM communications; and performing phase noise correction for the multiple SDM communications based at least in part on estimating the phase noise received via the single communication of the multiple SDM communications. ### Claim 2 (depends on 1) The method of claim 1, further comprising: transmitting an indication of transmission configuration indicator (TCI) state identifications associated with the multiple SDM communications, wherein the TCI state identifications are associated with the single antenna panel of the UE. ### Claim 3 (depends on 2) The method of claim 2, further comprising: transmitting an indication that the TCI state identifications are associated with the single antenna panel of the UE, wherein the TCI state identifications are associated with the single antenna panel of the UE based at least in part on transmission of the indication. ### Claim 4 (depends on 3) The method of claim 3, wherein transmission of the indication that the TCI state identifications are associated with the single antenna panel of the UE comprises: transmission, via the single communication, of the indication of TCI state identifications and the indication that the TCI state identifications are associated with the single antenna panel of the UE. ### Claim 5 (depends on 4) The method of claim 4, wherein the single communication comprises one or more of: a beam management procedure communication, a reference signal received power report, or a signal-to-interference-plus-noise ratio report. ### Claim 6 (depends on 1) The method of claim 1, wherein the phase noise comprises receiver phase noise. ### Claim 7 (depends on 1) The method of claim 1, further comprising: receiving one or more additional SDM communications via an additional antenna panel of the UE; and performing phase noise correction for the one or more additional SDM communications based at least in part on PT-RSs received via a single additional communication of the one or more additional SDM communications. ### Claim 8 (depends on 1) The method of claim 1, further comprising: transmitting a set of indications of transmission configuration indicator (TCI) state identifications associated with one or more reference signals received via one or more transmission reception points, and indicating antenna panels of the UE that are associated with the TCI state identifications. ### Claim 9 A method of wireless communication performed by a base station, comprising: determining that a user equipment (UE) is to receive multiple spatial dimension multiplexed (SDM) communications associated with multiple transmission reception points (TRPs) via a single antenna panel of the UE; configuring a single TRP, of the multiple TRPs, to transmit phase tracking reference signals (PT-RSs) with a single communication, of the multiple SDM communications, for the UE to use for phase noise correction of the multiple SDM communications; and sending, to the UE, configuration information indicating that the UE is to estimate and correct phase noise for the multiple SDM communications received via the single antenna panel based on the PT-RSs of the single communication. ### Claim 10 (depends on 9) The method of claim 9, further comprising: receiving an indication of transmission configuration indicator (TCI) state identifications associated with the multiple SDM communications, wherein the TCI state identifications are associated with the single antenna panel of the UE. ### Claim 11 (depends on 10) The method of claim 10, further comprising: receiving an indication that the TCI state identifications are associated with the single antenna panel of the UE, wherein the TCI state identifications are associated with the single antenna panel of the UE based at least in part on reception of the indication. ### Claim 12 (depends on 11) The method of claim 11, wherein reception of the indication that the TCI state identifications are associated with the single antenna panel of the UE comprises: reception, via a single communication, of the indication of TCI state identifications and the indication that the TCI state identifications are associated with the single antenna panel of the UE. ### Claim 13 (depends on 12) The method of claim 12, wherein the single communication comprises one or more of: a beam management procedure communication, a reference signal received power report, or a signal-to-interference-plus-noise ratio report. ### Claim 14 (depends on 9) The method of claim 9, wherein the phase noise correction comprises: phase noise correction based at least in part on receiver phase noise. ### Claim 15 (depends on 9) The method of claim 9, further comprising: determining that the UE is to receive multiple additional SDM communications associated with multiple additional TRPs via an additional single antenna panel of the UE; and configuring a single additional TRP, of the multiple additional TRPs, to transmit PT-RSs with an additional communication of the multiple additional SDM communications for the UE to use for phase noise correction for the multiple additional SDM communication. ### Claim 16 (depends on 9) The method of claim 9, further comprising: receiving a set of indications of transmission configuration indicator (TCI) state identifications associated with one or more reference signals received by the UE via one or more transmission reception points; and determining antenna panels of the UE that are associated with the TCI state identifications, wherein determining that the UE is to receive the multiple SDM communications associated with the multiple TRPs via the single antenna panel of the UE is based at least in part on determining the antenna panels of the UE that are associated with the TCI state identifications. ### Claim 17 A user equipment (UE) for wireless communication, comprising: a memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: receive multiple spatial dimension multiplexed (SDM) communications associated with multiple transmission reception points (TRPs) via a single antenna panel of the UE; estimate a phase noise based on phase tracking reference signals (PT-RSs) received via a single communication of the multiple SDM communications; and perform phase noise correction for the multiple SDM communications based at least in part on estimating the phase noise received via a single communication of the multiple SDM communications. ### Claim 18 (depends on 17) The UE of claim 17, wherein the one or more processors are further configured to: transmit an indication of transmission configuration indicator (TCI) state identifications associated with the multiple SDM communications, wherein the TCI state identifications are associated with the single antenna panel of the UE. ### Claim 19 (depends on 18) The UE of claim 18, wherein the one or more processors are further configured to: transmit an indication that the TCI state identifications are associated with the single antenna panel of the UE, wherein the TCI state identifications are associated with the single antenna panel of the UE based at least in part on transmission of the indication. ### Claim 20 (depends on 19) The UE of claim 19, wherein transmission of the indication that the TCI state identifications are associated with the single antenna panel of the UE comprises: transmission, via the single communication, of the indication of TCI state identifications and the indication that the TCI state identifications are associated with the single antenna panel of the UE. ### Claim 21 (depends on 20) The UE of claim 20, wherein the single communication comprises one or more of: a beam management procedure communication, a reference signal received power report, or a signal-to-interference-plus-noise ratio report. ### Claim 22 (depends on 17) The UE of claim 17, wherein the one or more processors are further configured to: receive one or more additional SDM communications via an additional antenna panel of the UE; and perform phase noise correction for the one or more additional SDM communications based at least in part on PT-RSs received via a single additional communication of the one or more additional SDM communications. ### Claim 23 (depends on 17) The UE of claim 17, wherein the one or more processors are further configured to: transmit a set of indications of transmission configuration indicator (TCI) state identifications associated with one or more reference signals received via one or more transmission reception points, and indicate antenna panels of the UE that are associated with the TCI state identifications. ### Claim 24 A base station for wireless communication, comprising: a memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: determine that a user equipment (UE) is to receive multiple spatial dimension multiplexed (SDM) communications associated with multiple transmission reception points (TRPs) via a single antenna panel of the UE; and configure a single TRP, of the multiple TRPs, to transmit phase tracking reference signals (PT-RSs) with a single communication, of the multiple SDM communications, for the UE to use for phase noise correction of the multiple SDM-communications, and send, to the UE, configuration information indicating that the UE is to estimate and correct phase noise for the multiple SDM communications received via the single antenna panel based on the PT-RSs of the single communication. ### Claim 25 (depends on 24) The base station of claim 24, wherein the one or more processors are further configured to: receive an indication of transmission configuration indicator (TCI) state identifications associated with the multiple SDM communications, wherein the TCI state identifications are associated with the single antenna panel of the UE. ### Claim 26 (depends on 25) The base station of claim 25, wherein the one or more processors are further configured to: receive an indication that the TCI state identifications are associated with the single antenna panel of the UE, wherein the TCI state identifications are associated with the single antenna panel of the UE based at least in part on reception of the indication. ### Claim 27 (depends on 26) The base station of claim 26, wherein reception of the indication that the TCI state identifications are associated with the single antenna panel of the UE comprises: reception, via a single communication, of the indication of TCI state identifications and the indication that the TCI state identifications are associated with the single antenna panel of the UE. ### Claim 28 (depends on 27) The base station of claim 27, wherein the single communication comprises one or more of: a beam management procedure communication, a reference signal received power report, or a signal-to-interference-plus-noise ratio report. ### Claim 29 (depends on 24) The base station of claim 24, wherein the one or more processors are further configured to: determine that the UE is to receive multiple additional SDM communications associated with multiple additional TRPs via an additional single antenna panel of the UE; and configure a single additional TRP, of the multiple additional TRPs, to transmit PT-RSs with an additional communication of the multiple additional SDM communications for the UE to use for phase noise correction for the multiple additional SDM communication. ### Claim 30 (depends on 24) The base station of claim 24, wherein the one or more processors are further configured to: receive a set of indications of transmission configuration indicator (TCI) state identifications associated with one or more reference signals received by the UE via one or more transmission reception points; and determine antenna panels of the UE that are associated with the TCI state identifications, wherein determining that the UE is to receive the multiple SDM communications associated with the multiple TRPs via the single antenna panel of the UE is based at least in part on determining the antenna panels of the UE that are associated with the TCI state identification.