# US 11,451,259 B2 · Techniques for self-interference reporting > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,451,259 B2 - Document ID: US11451259B2 - Status: Granted - Kind: B2 - Application number: 17/149,190 - Filed: 2021-01-14 - Published: 2022-08-25 - Granted: 2022-09-20 - Earliest claimed: 2021-01-14 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Qian Zhang; Yan Zhou; Navid Abedini; Junyi Li; Tao Luo; Kapil Gulati - Web page: https://patentgrep.com/patent/US11451259B2 ## CPC - H04B 1/525: with means for reducing leakage of transmitter signal into the receiver - H04B 7/0626: {Channel coefficients, e.g. channel state information [CSI]} - H04B 7/088: {using beam selection} - H04B 17/336: Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR] - 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 5/0062: {Avoidance of ingress interference, e.g. ham radio channels} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04L 5/14: Two-way operation using the same type of signal, i.e. duplex - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04W 72/541: using the level of interference - H04B 17/24: with feedback of measurements to the transmitter - H04B 17/345: Interference values ({signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]} H04B17/336) - 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 Methods, systems, and devices for wireless communications are described. A first wireless device may transmit reference signals via a first antenna array of the first wireless device. The first wireless device may perform, according to a reporting configuration for self-interference at the first wireless device, a set of measurements on the reference signals received at a second antenna array of the first wireless device. The first wireless device may determine a priority associated with transmission of measurement reports associated with self-interference at the first wireless device. The first wireless device may then transmit, to a second wireless device and according to the reporting configuration, a measurement report including an indication of self-interference for full-duplex communications at the first wireless device that is based on performing the set of measurements on the reference signals, where the measurement report is transmitted in accordance with the determined priority. ## Claims ### Claim 1 A method for wireless communication at a first wireless device, comprising: transmitting reference signals via a first antenna array of the first wireless device; performing, according to a reporting configuration for self-interference at the first wireless device, a set of measurements on the reference signals received at a second antenna array of the first wireless device; determining a priority associated with transmission of measurement reports associated with self-interference at the first wireless device; and transmitting, to a second wireless device and according to the reporting configuration, a measurement report comprising an indication of self-interference for full-duplex communications at the first wireless device that is based at least in part on performing the set of measurements on the reference signals, wherein the measurement report is transmitted in accordance with the determined priority. ### Claim 2 (depends on 1) The method of claim 1, further comprising: receiving, from the second wireless device, an indication of the reporting configuration, wherein performing the set of measurements, transmitting the measurement report, or both, is based at least in part on receiving the indication of the reporting configuration. ### Claim 3 (depends on 1) The method of claim 1, further comprising: receiving, from the second wireless device, an indication to transmit measurement reports associated with self-interference at the first wireless device periodically, aperiodically, semi-persistently, or a combination thereof, wherein transmitting the measurement report is based at least in part on the indication to transmit the measurement reports. ### Claim 4 (depends on 1) The method of claim 1, further comprising: receiving, from the second wireless device, a request for the measurement report, wherein transmitting the measurement report is based at least in part on receiving the request. ### Claim 5 (depends on 4) The method of claim 4, wherein the request comprises a media access control (MAC) control element, a downlink control information message, a radio resource control message, or any combination thereof. ### Claim 6 (depends on 1) The method of claim 1, further comprising: receiving, from the second wireless device, an indication of one or more measurement thresholds; and identifying that one or more measurements of the set of measurements satisfy at least one measurement threshold of the one or more measurement thresholds, wherein transmitting the measurement report is based at least in part on the identifying. ### Claim 7 (depends on 1) The method of claim 1, further comprising: transmitting, via the measurement report, an indication of a received signal strength indicator for the reference signals, a reference signal received power for the reference signals, a signal-to-interference-plus-noise ratio for the reference signals, or any combination thereof. ### Claim 8 (depends on 1) The method of claim 1, further comprising: transmitting, via the measurement report, an indication of a maximum measurement of the set of measurements over a time interval, a minimum measurement of the set of measurements over the time interval, an average measurement of the set of measurements over the time interval, a percentage of measurements of the set of measurements that satisfy a measurement threshold over the time interval, or any combination thereof. ### Claim 9 (depends on 8) The method of claim 8, further comprising: receiving, from the second wireless device, an indication of the time interval, wherein performing the set of measurements, transmitting the measurement report, or both, is based at least in part on the time interval, wherein the set of measurements are performed within the time interval. ### Claim 10 (depends on 1) The method of claim 1, wherein the reference signals are transmitted via the first antenna array on a transmit beam, and wherein the reference signals are received via the second antenna array on a receive beam different from the transmit beam, the method further comprising: transmitting, via the measurement report, an identifier of a beam pair comprising the transmit beam and the receive beam. ### Claim 11 (depends on 1) The method of claim 1, wherein the reference signals are transmitted via the first antenna array via a set of one or more transmit beams, and wherein the reference signals are received via the second antenna array via a set of one or more receive beams, the method further comprising: transmitting, via the measurement report, a set of beam pair identifiers associated with one or more beam pairs, wherein each beam pair comprises a transmit beam from the set of one or more transmit beams and a receive beam from the set of one or more receive beams. ### Claim 12 (depends on 11) The method of claim 11, further comprising: receiving, from the second wireless device, a first indication of the set of one or more transmit beams, a second indication of the set of one or more receive beams, or both. ### Claim 13 (depends on 11) The method of claim 11, further comprising: receiving, from the second wireless device based at least in part on transmitting the measurement report, an indication of a subset of beam pair identifiers from the set of beam pair identifiers; transmitting additional reference signals via the first antenna array of the first wireless device via one or more transmit beams associated with the subset of beam pair identifiers; performing a second set of measurements on the additional reference signals received at the second antenna array via one or more receive beams associated with the subset of beam pair identifiers; and transmitting, to the second wireless device, a second measurement report comprising an indication of self-interference experienced at the first wireless device that is attributable to the additional reference signals. ### Claim 14 (depends on 1) The method of claim 1, wherein: the reference signals are transmitted via the first antenna array via a single transmit beam, the reference signals are received via the second antenna array via a plurality of receive beams, and the method further comprises transmitting, via the measurement report, an indication of measurements associated with at least a subset of receive beams of the plurality of receive beams; the reference signals are transmitted via the first antenna array via a plurality of transmit beams, the reference signals are received via the second antenna array via a single receive beam, and the method further comprises transmitting via the measurement report, an indication of measurements associated with at least a subset of transmit beams of the plurality of transmit beams; the reference signals are transmitted via the first antenna array via a plurality of transmit beams, the reference signals are received via the second antenna array via a plurality of receive beams, and the method further comprises transmitting via the measurement report, an indication of measurements associated with at least a subset of transmit beams of the plurality of transmit beams, at least a subset of receive beams of the plurality of receive beams, or both; or any combination thereof. ### Claim 15 (depends on 14) The method of claim 14, wherein the measurements indicated via the measurement comprise a plurality of sets of measurements corresponding to a plurality of measurement intervals, the method further comprising: transmitting, via the measurement report, an indication of the plurality of sets of measurements over the plurality of measurement intervals, wherein each set of measurements of the plurality of sets of measurements, for each measurement interval of the plurality of measurement intervals, comprises one or more of a maximum measurement of the set of measurements over a time interval, a minimum measurement of the set of measurements over the time interval, an average measurement of the set of measurements over the time interval, a percentage of measurements of the set of measurements that satisfy a measurement threshold over the time interval, or any combination thereof. ### Claim 16 (depends on 14) The method of claim 14, further comprising: transmitting, via the measurement report, an indication of a maximum measurement of the set of measurements over a time interval, a minimum measurement of the set of measurements over the time interval, an average measurement of the set of measurements over the time interval, a percentage of measurements of the set of measurements that satisfy a measurement threshold over the time interval, or any combination thereof. ### Claim 17 (depends on 14) The method of claim 14, further comprising: transmitting, via the measurement report, a set of beam pair identifiers associated with one or more transmit beams, one or more receive beams, or both, that are associated with measurements of the set of measurements that satisfy one or more measurement thresholds, wherein the set of beam pair identifiers are associated with a subset of the plurality of transmit beams, a subset of the plurality of receive beams, or both. ### Claim 18 (depends on 1) The method of claim 1, wherein the reference signals are transmitted via the first antenna array to a first transmission-reception point of the second wireless device, and wherein the reference signals are received at the second antenna array within a set of resources for receiving signals from a second transmission-reception point of the second wireless device, wherein the method further comprises: transmitting, via the measurement report, an indication of the second wireless device, the first transmission-reception point associated with channel measurement resources (CMRs), the second transmission-reception point associated with interference measurement resources (IMRs), or any combination thereof. ### Claim 19 (depends on 1) The method of claim 1, wherein the reference signals are transmitted via the first antenna array to one of the second wireless device or a third wireless device, and wherein the reference signals are received at the second antenna array within a set of resources for receiving signals from an other one of the second wireless device or the third wireless device, wherein the method further comprises: transmitting, via the measurement report, an indication of the second wireless device associated with channel measurement resources (CMRs), the third wireless device associated with interference measurement resources (IMRs), or both. ### Claim 20 (depends on 1) The method of claim 1, further comprising: receiving, from the second wireless device, an indication of one or more parameters associated with the priority, wherein determining the priority is based at least in part on receiving the indication of the one or more parameters. ### Claim 21 (depends on 1) The method of claim 1, further comprising: determining an additional priority associated with transmission of an additional measurement report; and transmitting the additional measurement report according to the additional priority and based at least in part on a comparison between the priority and the additional priority. ### Claim 22 (depends on 1) The method of claim 1, wherein the first wireless device comprises a UE, the second wireless device comprises a base station, and the reference signals comprise sounding reference signals, or wherein the first wireless device comprises a wireless node of an integrated access and backhaul network, the second wireless device comprises a parent node or a central unit of an integrated access and backhaul network, and the reference signals comprise channel state information reference signals, synchronization signal block signals, or both. ### Claim 23 A method for wireless communication at a second wireless device, comprising: receiving reference signals via a first antenna array of a first wireless device; determining a priority associated with transmission of measurement reports associated with self-interference at the first wireless device; and receiving, from the first wireless device and according to a reporting configuration for self-interference at the first wireless device, a measurement report comprising an indication of self-interference for full-duplex communications at the first wireless device, wherein the measurement report is received in accordance with the determined priority. ### Claim 24 (depends on 23) The method of claim 23, further comprising: transmitting, to the first wireless device, an indication of the reporting configuration, wherein receiving the measurement report is based at least in part on transmitting the indication of the reporting configuration. ### Claim 25 (depends on 23) The method of claim 23, further comprising: transmitting, to the first wireless device, an indication to transmit measurement reports associated with self-interference at the first wireless device periodically, aperiodically, semi-persistently, or a combination thereof, wherein receiving the measurement report is based at least in part on the indication to transmit the measurement reports. ### Claim 26 (depends on 23) The method of claim 23, further comprising: transmitting, to the first wireless device, a request for the measurement report, wherein receiving the measurement report is based at least in part on transmitting the request. ### Claim 27 (depends on 26) The method of claim 26, wherein the request comprises a media access control (MAC) control element, a downlink control information message, a radio resource control message, or any combination thereof. ### Claim 28 (depends on 23) The method of claim 23, further comprising: transmitting, to the first wireless device, an indication of one or more measurement thresholds associated with self-interference measurements at the first wireless device, wherein the measurement report is based at least in part on the one or more measurement thresholds. ### Claim 29 An apparatus for wireless communication at a first wireless device, comprising: a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: transmit reference signals via a first antenna array of the first wireless device; perform, according to a reporting configuration for self-interference at the first wireless device, a set of measurements on the reference signals received at a second antenna array of the first wireless device; determine a priority associated with transmission of measurement reports associated with self-interference at the first wireless device; and transmit, to a second wireless device and according to the reporting configuration, a measurement report comprising an indication of self-interference for full-duplex communications at the first wireless device that is based at least in part on performing the set of measurements on the reference signals, wherein the measurement report is transmitted in accordance with the determined priority. ### Claim 30 An apparatus for wireless communication at a second wireless device, comprising: a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: receive reference signals via a first antenna array of a first wireless device; determine a priority associated with transmission of measurement reports associated with self-interference at the first wireless device; and receive, from the first wireless device and according to a reporting configuration for self-interference at the first wireless device, a measurement report comprising an indication of self-interference for full-duplex communications at the first wireless device, wherein the measurement report is received in accordance with the determined priority.