# US 11,910,217 B2 · Demodulation reference signal based self-interference measurement > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,910,217 B2 - Document ID: US11910217B2 - Status: Granted - Kind: B2 - Application number: 17/301,798 - Filed: 2021-04-14 - Published: 2021-11-11 - Granted: 2024-02-20 - Earliest claimed: 2020-05-07 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Qian Zhang; Yan Zhou; Tao Luo; Navid Abedini - Web page: https://patentgrep.com/patent/US11910217B2 ## CPC - H04B 7/0632: {Channel quality parameters, e.g. channel quality indicator [CQI]} - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04B 7/0696: {Determining beam pairs} - H04L 1/0026: {Transmission of channel quality indication} - H04L 1/189: {Transmission or retransmission of more than one copy of a message} - H04L 5/0023: {Time-frequency-space} - H04L 5/0037: {Inter-user or inter-terminal allocation} - 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)} - H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)} - H04L 5/14: Two-way operation using the same type of signal, i.e. duplex - H04L 5/1461: {Suppression of signals in the return path, i.e. bidirectional control circuits} - H04W 24/08: Testing, {supervising or monitoring} using real traffic - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04B 7/0623: {Auxiliary parameters, e.g. power control [PCB] or not acknowledged commands [NACK], used as feedback information} - H04B 7/088: {using beam selection} - H04L 5/001: {the frequencies being arranged in component carriers} - H04L 5/1469: {using time-sharing} - H04B: TRANSMISSION - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - 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 transmit, in a full duplex communication mode, a data transmission or a control transmission; perform a self-interference measurement (SIM) associated with an uplink transmit beam from a first panel and a downlink receive beam from a second panel of the UE, based at least in part on at least part of the data transmission or the control transmission; and transmit a measurement report indicating the SIM. Numerous other aspects are provided. ## Claims ### Claim 1 A method of wireless communication performed by a user equipment (UE), comprising: transmitting, in a full duplex communication mode, a data transmission or a control transmission to a base station using an uplink (UL) transmit (Tx) beam from a first panel of the UE, wherein the data transmission or control transmission comprises a demodulation reference signal (DMRS); performing, based at least part on the DMRS of the data transmission or the control transmission, a self-interference measurement (SIM) associated with the uplink (UL) transmit (Tx) beam from the first panel and a downlink (DL) receive (Rx) beam from a second panel of the UE; and transmitting, to the base station, a measurement report indicating the SIM. ### Claim 2 (depends on 1) The method of claim 1, wherein the DMRS is transmitted using a same precoding or beam as the data transmission or the control transmission. ### Claim 3 (depends on 1) The method of claim 1, wherein the method further comprises: receiving information indicating a quasi-colocation configuration for the DL Rx beam corresponding to the UL Tx beam associated with the SIM. ### Claim 4 (depends on 3) The method of claim 3, wherein the information indicating the quasi-colocation configuration is received in at least one of downlink control information or a measurement configuration for the demodulation reference signal. ### Claim 5 (depends on 1) The method of claim 1, wherein the DMRS is associated with a configuration type associated with alternating subcarrier mappings. ### Claim 6 (depends on 1) The method of claim 1, wherein the DMRS is associated with a configuration type associated with contiguous subcarrier mappings. ### Claim 7 (depends on 1) The method of claim 1, wherein the DMRS is associated with a shared channel type indicating that the DMRS is mapped to a third or fourth symbol of a slot. ### Claim 8 (depends on 1) The method of claim 1, wherein the DMRS is associated with a shared channel type indicating that the DMRS is mapped to a first symbol of a slot. ### Claim 9 (depends on 1) The method of claim 1, wherein the DMRS is one of a plurality of DMRSs that are transmitted at different symbols of one or more slots, wherein the plurality of DMRSs sweep through different receive beams of one or more panels of the UE other than a panel used to transmit the plurality of DMRSs on corresponding transmit beams. ### Claim 10 (depends on 1) The method of claim 1, wherein the data transmission or the control transmission is associated with a repetition scheme, and wherein transmitting the data transmission or the control transmission comprises transmitting multiple repetition configurations of the data transmission or the control transmission, wherein the DMRS is transmitted using multiple different transmit beams based at least in part on the repetition scheme. ### Claim 11 (depends on 10) The method of claim 10, wherein, in each repetition configuration of the multiple repetition configurations, the DMRS is received using multiple different receive beams based at least in part on the repetition scheme. ### Claim 12 (depends on 1) The method of claim 1, wherein the DMRS is an uplink DMRS, and wherein a bandwidth of the uplink DMRS is included in a downlink bandwidth part of the UE. ### Claim 13 (depends on 1) The method of claim 1, wherein the DMRS is associated with a cross-link interference measurement, and wherein the method further comprises performing the cross-link interference measurement concurrently with the SIM. ### Claim 14 (depends on 1) The method of claim 1, wherein the DMRS is associated with a Layer 1 signal to interference plus noise (L1-SINR) measurement that includes a channel measurement (CM) and an interference measurement (IM), and wherein the IM is used for the SIM. ### Claim 15 (depends on 14) The method of claim 14, wherein the DMRS is a first DMRS associated with a physical uplink control channel that carries an acknowledgment or negative acknowledgment (ACK/NACK), wherein a second DMRS is associated with a physical downlink shared channel (PDSCH) associated with the ACK/NACK, wherein the first DMRS is used for the SIM, and wherein the second DMRS associated with the PDSCH associated with the ACK/NACK is used for the CM associated with the SIM in the L1-SINR measurement. ### Claim 16 (depends on 14) The method of claim 14, wherein the DMRS is used for the SIM, and wherein the CM associated with the SIM is performed using a channel state information reference signal or a downlink DMRS associated with a physical downlink control or data channel, and wherein the data transmission or the control transmission is associated with periodic traffic. ### Claim 17 (depends on 14) The method of claim 14, wherein the DMRS is associated with a physical uplink shared channel, wherein the DMRS associated with the physical uplink shared channel is used for the SIM, wherein downlink control information that schedules the physical uplink shared channel schedules a CM resource corresponding to the DMRS, and wherein the CM is performed using the scheduled CM resource. ### Claim 18 (depends on 1) The method of claim 1, wherein the data transmission or the control transmission is associated with a configured grant that indicates respective configurations for a plurality of periodic transmissions associated with a plurality of respective demodulation reference signals, and wherein the SIM is based at least in part on the respective configurations. ### Claim 19 (depends on 18) The method of claim 18, wherein the SIM is based at least in part on a filtering technique associated with the plurality of periodic transmissions. ### Claim 20 (depends on 1) The method of claim 1, wherein the data transmission or the control transmission is associated with a dynamic allocation, and wherein the SIM comprises a SIM without filtering. ### Claim 21 (depends on 1) The method of claim 1, wherein the data transmission or the control transmission is associated with a long control channel format that is configured for repetition across multiple slots, and wherein the SIM uses multiple inter-panel receive beams corresponding to multiple repetitions of the data transmission or the control transmission. ### Claim 22 (depends on 1) The method of claim 1, wherein the SIM is performed using a physical uplink control channel of the control transmission. ### Claim 23 (depends on 1) The method of claim 1, wherein the SIM is performed using a physical uplink shared channel of the data transmission. ### Claim 24 A method of wireless communication performed by a base station, comprising: receiving, from a user equipment (UE) in a full duplex communication mode, via an uplink (UL) transmit (Tx) beam from a first panel of the UE a data transmission or a control transmission, wherein the data transmission or control transmission comprises a demodulation reference signal (DMRS); receiving, from the UE, a measurement report indicating a self-interference measurement (SIM) associated with the uplink (UL) transmit (Tx) beam from the first panel and a downlink (DL) receive (Rx) beam from a second panel of the UE, wherein the SIM is based at least in part on the DMRS of the data transmission or the control transmission; and communicating using a selected beam pair based at least in part on the measurement report. ### Claim 25 (depends on 24) The method of claim 24, wherein the data transmission or the control transmission is associated with a dynamic allocation, and wherein the SIM comprises a SIM without filtering. ### Claim 26 (depends on 24) The method of claim 24, wherein the data transmission or the control transmission is associated with a long control channel format that is configured for repetition across multiple slots, and wherein the SIM uses multiple inter-panel receive beams corresponding to multiple repetitions of the data transmission or the control transmission. ### Claim 27 (depends on 24) The method of claim 24, wherein the DMRS is associated with a Layer 1 signal to interference plus noise (L1-SINR) measurement that includes a channel measurement (CM) and an interference measurement (IM), and wherein the IM is used for the SIM. ### Claim 28 (depends on 27) The method of claim 27, wherein the DMRS is a first DMRS associated with a physical uplink control channel that carries an acknowledgment or negative acknowledgment (ACK/NACK), wherein a second DMRS is associated with a physical downlink shared channel (PDSCH) associated with the ACK/NACK, wherein the first DMRS is used for the SIM, and wherein the second DMRS associated with the PDSCH associated with the ACK/NACK is used for the CM associated with the SIM in the L1-SINR measurement. ### Claim 29 A user equipment (UE) for wireless communication, comprising: one or more memories; and one or more processors coupled to the one or more memories, the one or more memories and the one or more processors configured to: transmit, in a full duplex communication mode, a data transmission or a control transmission to a base station using an uplink (UL) transmit (Tx) beam from a first panel of the UE, wherein the data transmission or control transmission comprises a demodulation reference signal (DMRS); perform, based at least part on the DMRS of the data transmission or the control transmission, a self-interference measurement (SIM) associated with the uplink (UL) transmit (Tx) beam from the first panel and a downlink (DL) receive (Rx) beam from a second panel of the UE; and transmit, to the base station, a measurement report indicating the SIM. ### Claim 30 A base station for wireless communication, comprising: one or more memories; and one or more processors coupled to the one or more memories, the one or more memories and the one or more processors configured to: receive, from a user equipment (UE) in a full duplex communication mode, via an uplink (UL) transmit (Tx) beam from a first panel of the UE a data transmission or a control transmission, wherein the data transmission or control transmission comprises a demodulation reference signal (DMRS); receive, from the UE, a measurement report indicating a self-interference measurement (SIM) associated with the uplink (UL) transmit (Tx) beam from the first panel and a downlink (DL) receive (Rx) beam from a second panel of the UE, wherein the SIM is based at least in part on the DMRS of the data transmission or the control transmission; and communicate using a selected beam pair based at least in part on the measurement report.