# US 12,191,944 B2 · Sub-band precoding for inter user equipment interference mitigation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,191,944 B2 - Document ID: US12191944B2 - Status: Granted - Kind: B2 - Application number: 17/643,126 - Filed: 2021-12-07 - Published: 2023-06-08 - Granted: 2025-01-07 - Earliest claimed: 2021-12-07 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Ahmed Attia Abotabl; Muhammad Sayed Khairy Abdelghaffar; Abdelrahman Mohamed Ahmed Mohamed Ibrahim - Web page: https://patentgrep.com/patent/US12191944B2 ## CPC - H04B 7/0456: Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04B 7/0689: {using different transmission schemes, at least one of them being a diversity transmission scheme} - H04W 72/0466: {the resource being a scrambling code} - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04L 5/0023: {Time-frequency-space} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 72/1268: of uplink data flows - 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 Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may obtain a configuration that indicates to use a first type of precoding or a second type of precoding, for an uplink communication, based at least in part on one or more frequency resources for a downlink communication. The UE may perform a transmission of the uplink communication, having the first type of precoding or the second type of precoding, in accordance with the configuration. Numerous other aspects are described. ## Claims ### Claim 1 An apparatus for wireless communication at a user equipment (UE), comprising: a memory; and one or more processors, coupled to the memory, configured to: obtain a configuration that indicates to use a first type of precoding or a second type of precoding, for an uplink communication, based at least in part on one or more frequency resources for a downlink communication; and perform a transmission of the uplink communication, having the first type of precoding or the second type of precoding, in accordance with the configuration; wherein the configuration indicates to use the first type of precoding or the second type of precoding, for the uplink communication, based at least in part on a distance of one or more frequency resources for the uplink communication from the one or more frequency resources for the downlink communication. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the distance is measured in a frequency domain. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the distance is based at least in part on one or more resource blocks, or one or more resource elements. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein the first type of precoding is performed using a first precoder associated with the UE, and the second type of precoding is performed using a second precoder associated with the UE. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein the one or more processors, to obtain the configuration, are configured to receive the configuration from a base station. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein the one or more frequency resources for the downlink communication are allocated for use by a second UE. ### Claim 7 An apparatus for wireless communication at a user equipment (UE), comprising: a memory; and one or more processors, coupled to the memory, configured to: obtain a configuration that indicates to use a first type of precoding or a second type of precoding, for an uplink communication, based at least in part on one or more frequency resources for a downlink communication; and perform a transmission of the uplink communication, having the first type of precoding or the second type of precoding, in accordance with the configuration; wherein the configuration indicates to use the first type of precoding if the uplink communication is less than a distance, or less than or equal to the distance, from the one or more frequency resources for the downlink communication, or to use the second type of precoding if the uplink communication is greater than the distance, or greater than or equal to the distance, from the one or more frequency resources for the downlink communication. ### Claim 8 An apparatus for wireless communication at a user equipment (UE), comprising: a memory; and one or more processors, coupled to the memory, configured to: obtain a configuration that indicates to use a first type of precoding or a second type of precoding, for an uplink communication, based at least in part on one or more frequency resources for a downlink communication; and perform a transmission of the uplink communication, having the first type of precoding or the second type of precoding, in accordance with the configuration; wherein the one or more processors are configured to perform the transmission of the uplink communication having the first type of precoding based at least in part on one or more frequency resources for the uplink communication being less than a distance, or less than or equal to the distance, from the one or more frequency resources for the downlink communication. ### Claim 9 An apparatus for wireless communication at a user equipment (UE), comprising: a memory; and one or more processors, coupled to the memory, configured to: obtain a configuration that indicates to use a first type of precoding or a second type of precoding, for an uplink communication, based at least in part on one or more frequency resources for a downlink communication; and perform a transmission of the uplink communication, having the first type of precoding or the second type of precoding, in accordance with the configuration; wherein the one or more processors are configured to perform the transmission of the uplink communication having the second type of precoding based at least in part on one or more frequency resources for the uplink communication being greater than a distance, or greater than or equal to the distance, from the one or more frequency resources for the downlink communication. ### Claim 10 An apparatus for wireless communication at a user equipment (UE), comprising: a memory; and one or more processors, coupled to the memory, configured to: obtain a configuration that indicates to use a first type of precoding or a second type of precoding, for an uplink communication, based at least in part on one or more frequency resources for a downlink communication; and perform a transmission of the uplink communication, having the first type of precoding or the second type of precoding, in accordance with the configuration; wherein the one or more frequency resources for the downlink communication are allocated for use by a second UE; and wherein the one or more processors are further configured to receive an indication from the second UE of whether a downlink communication is scheduled in the one or more frequency resources for the downlink communication. ### Claim 11 (depends on 10) The apparatus of claim 10, wherein the one or more processors are configured to perform the transmission of the communication having the first type of precoding based at least in part on the indication from the second UE indicating that there is no downlink communication scheduled in the one or more frequency resources for the downlink communication. ### Claim 12 An apparatus for wireless communication at a user equipment (UE), comprising: a memory; and one or more processors, coupled to the memory, configured to: obtain a configuration that indicates to use a first type of precoding or a second type of precoding, for an uplink communication, based at least in part on one or more frequency resources for a downlink communication; and perform a transmission of the uplink communication, having the first type of precoding or the second type of precoding, in accordance with the configuration; wherein the configuration indicates whether to use the first type of precoding or the second type of precoding based at least in part on a physical distance between the UE and a second UE. ### Claim 13 An apparatus for wireless communication at a base station, comprising: a memory; and one or more processors, coupled to the memory, configured to: transmit, to a user equipment (UE), a configuration that indicates to use a first type of precoding or a second type of precoding, for an uplink communication, based at least in part on one or more frequency resources for a downlink communication; and receive, from the UE, a transmission of the uplink communication having the first type of precoding or the second type of precoding; wherein the configuration indicates to use the first type of precoding or the second type of precoding, for the uplink communication, based at least in part on a distance of one or more frequency resources for the uplink communication from the one or more frequency resources for the downlink communication. ### Claim 14 (depends on 13) The apparatus of claim 13, wherein the distance is measured in a frequency domain. ### Claim 15 (depends on 13) The apparatus of claim 13, wherein the distance is based at least in part on one or more resource blocks, or one or more resource elements. ### Claim 16 (depends on 13) The apparatus of claim 13, wherein the first type of precoding is associated with a first precoder of the UE, and the second type of precoding is associated with a second precoder of the UE. ### Claim 17 (depends on 13) The apparatus of claim 13, wherein the one or more frequency resources for the downlink communication are allocated for use by a second UE. ### Claim 18 An apparatus for wireless communication at a base station, comprising: a memory; and one or more processors, coupled to the memory, configured to: transmit, to a user equipment (UE), a configuration that indicates to use a first type of precoding or a second type of precoding, for an uplink communication, based at least in part on one or more frequency resources for a downlink communication; and receive, from the UE, a transmission of the uplink communication having the first type of precoding or the second type of precoding; wherein the one or more processors are further configured to receive an indication from the second UE of whether a downlink communication is scheduled in the one or more frequency resources for the downlink communication. ### Claim 19 (depends on 18) The apparatus of claim 18, wherein the one or more processors are further configured to transmit, to the UE, the indication from the second UE of whether the downlink communication is scheduled in the one or more frequency resources for the downlink communication. ### Claim 20 An apparatus for wireless communication at a base station, comprising: a memory; and one or more processors, coupled to the memory, configured to: transmit, to a user equipment (UE), a configuration that indicates to use a first type of precoding or a second type of precoding, for an uplink communication, based at least in part on one or more frequency resources for a downlink communication; and receive, from the UE, a transmission of the uplink communication having the first type of precoding or the second type of precoding; wherein the configuration indicates whether to use the first type of precoding or the second type of precoding based at least in part on a physical distance between the UE and a second UE. ### Claim 21 A method of wireless communication performed by a user equipment (UE), comprising: obtaining a configuration that indicates to use a first type of precoding or a second type of precoding, for an uplink communication, based at least in part on one or more frequency resources for a downlink communication; and performing a transmission of the uplink communication, having the first type of precoding or the second type of precoding, in accordance with the configuration; wherein the configuration indicates to use the first type of precoding or the second type of precoding, for the uplink communication, based at least in part on a distance of one or more frequency resources for the uplink communication from the one or more frequency resources for the downlink communication. ### Claim 22 (depends on 21) The method of claim 21, wherein the first type of precoding is performed using a first precoder associated with the UE, and the second type of precoding is performed using a second precoder associated with the UE. ### Claim 23 (depends on 21) The method of claim 21, wherein the one or more frequency resources for the downlink communication are allocated for use by a second UE. ### Claim 24 A method of wireless communication performed by a base station, comprising: transmitting, to a user equipment (UE), a configuration that indicates to use a first type of precoding or a second type of precoding, for an uplink communication, based at least in part on one or more frequency resources for a downlink communication; and receiving, from the UE, a transmission of the uplink communication having the first type of precoding or the second type of precoding; wherein the configuration indicates to use the first type of precoding or the second type of precoding, for the uplink communication, based at least in part on a distance of one or more frequency resources for the uplink communication from the one or more frequency resources for the downlink communication. ### Claim 25 (depends on 24) The method of claim 24, wherein the first type of precoding is associated with a first precoder of the UE, and the second type of precoding is associated with a second precoder of the UE. ### Claim 26 (depends on 24) The method of claim 24, wherein the one or more frequency resources for the downlink communication are allocated for use by a second UE.