# US 12,010,069 B2 · Cell-level cross link interference sounding reference signal > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,010,069 B2 - Document ID: US12010069B2 - Status: Granted - Kind: B2 - Application number: 17/452,457 - Filed: 2021-10-27 - Published: 2023-04-27 - Granted: 2024-06-11 - Earliest claimed: 2021-10-27 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Abdelrahman Mohamed Ahmed Mohamed Ibrahim; Muhammad Sayed Khairy Abdelghaffar; Seyedkianoush Hosseini; Huilin Xu; Ahmed Attia Abotabl - Web page: https://patentgrep.com/patent/US12010069B2 ## CPC - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04L 5/0073: {Allocation arrangements that take into account other cell interferences} - H04B 17/345: Interference values ({signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]} H04B17/336) - H04L 5/0042: {Intra-user or intra-terminal allocation} - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - 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 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/006: {Quality of the received signal, e.g. BER, SNR, water filling} - 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 - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04B: TRANSMISSION ## Abstract Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a cell-level cross link interference sounding reference signal (CLI-SRS) configuration, wherein the cell-level CLI-SRS configuration identifies CLI-SRS resources in one or more full-duplex slots for cross link interference measurements associated with Uu and sidelink communications. The UE may receive an indication to transmit a CLI-SRS, or to measure cross link interference, in a CLI-SRS resource of the CLI-SRS resources identified in the cell-level CLI-SRS configuration. The UE may transmit the CLI-SRS in the CLI-SRS resource or measuring cross-link interference in connection with a CLI-SRS transmission from another UE in the CLI-SRS resource based at least in part on the indication. Numerous other aspects are described. ## Claims ### Claim 1 A method of wireless communication performed by a first user equipment (UE), comprising: receiving a cell-level cross link interference sounding reference signal (CLI-SRS) configuration, wherein the cell-level CLI-SRS configuration identifies CLI-SRS resources in one or more full-duplex slots for cross link interference measurements, the cross link interference measurements being associated with Uu communications that at least partially overlap in time with sidelink communications in the one or more full-duplex slots; receiving an indication to transmit a CLI-SRS, or to measure cross link interference, in a CLI-SRS resource of the CLI-SRS resources identified in the cell-level CLI-SRS configuration; and transmitting the CLI-SRS in the CLI-SRS resource or measuring cross link interference in connection with a CLI-SRS transmission from a second UE in the CLI-SRS resource based at least in part on the indication. ### Claim 2 (depends on 1) The method of claim 1, wherein receiving the cell-level CLI-SRS configuration comprises: receiving a serving cell configuration that includes the cell-level CLI-SRS configuration. ### Claim 3 (depends on 1) The method of claim 1, wherein receiving the cell-level CLI-SRS configuration comprises: receiving a sidelink resource pool configuration that includes the cell-level CLI-SRS configuration. ### Claim 4 (depends on 1) The method of claim 1, wherein the CLI-SRS resources identified by the cell-level CLI-SRS configuration include periodic CLI-SRS resources. ### Claim 5 (depends on 1) The method of claim 1, wherein the cell-level CLI-SRS configuration includes a configuration of periodic CLI-SRS resources in a sidelink resource pool. ### Claim 6 (depends on 1) The method of claim 1, wherein receiving the indication comprises receiving the indication to measure cross link interference in the CLI-SRS resource, and wherein transmitting the CLI-SRS in the CLI-SRS resource or measuring cross link interference comprises: measuring cross link interference in connection with the CLI-SRS transmission from the second UE in the CLI-SRS resource. ### Claim 7 (depends on 6) The method of claim 6, wherein receiving the indication to measure cross link interference in the CLI-SRS resource comprises: receiving, from a network entity, a configuration of a zero power CLI-SRS (ZP-CLI-SRS) for the CLI-SRS resource. ### Claim 8 (depends on 6) The method of claim 6, wherein measuring cross link interference in connection with the CLI-SRS transmission from the second UE in the CLI-SRS resource comprises: measuring cross link interference from a sidelink or uplink transmission by the second UE on downlink reception by the first UE based at least in part on the CLI-SRS transmission from the second UE in the CLI-SRS resource. ### Claim 9 (depends on 8) The method of claim 8, further comprising: transmitting, to a network entity, an indication of the cross link interference measured in the CLI-SRS resource. ### Claim 10 (depends on 6) The method of claim 6, wherein the CLI-SRS resource is a periodic CLI-SRS configured for a sidelink resource pool, and wherein receiving the indication to measure cross link interference in the CLI-SRS resource comprises: receiving a configuration of sidelink cross link interference measurement resources that indicates that an occurrence of the CLI-SRS in the sidelink resource pool is configured as a cross link interference measurement resource for the UE. ### Claim 11 (depends on 10) The method of claim 10, wherein measuring cross link interference in connection with the CLI-SRS transmission from the second UE in the CLI-SRS resource comprises: measuring cross link interference from an uplink transmission by the second UE on sidelink reception at the first UE based at least in part on the CLI-SRS transmission from the second UE. ### Claim 12 (depends on 11) The method of claim 11, further comprising: receiving, from a network entity, a configuration of periodic or semi-persistent uplink resources for reporting cross link interference measurements; and transmitting, to the network entity, an indication of the cross link interference measured in the CLI-SRS resource using the periodic or semi-persistent uplink resources. ### Claim 13 (depends on 11) The method of claim 11, further comprising: receiving, from a network entity, an indication for triggering an aperiodic cross link interference report; and transmitting, to the network entity, the aperiodic cross link interference report including an indication of the cross link interference measured in the CLI-SRS resource based at least in part on receiving the indication for triggering the aperiodic cross link interference report. ### Claim 14 (depends on 11) The method of claim 11, further comprising: transmitting, to a transmitting UE associated with the sidelink reception at the first UE, an indication of the cross link interference measured in the CLI-SRS resource. ### Claim 15 (depends on 11) The method of claim 11, further comprising: transmitting an indication of the cross link interference measured in the CLI-SRS resource using a configured periodic or semi-persistent sidelink resource cross link interference reporting resource in the sidelink resource pool. ### Claim 16 (depends on 10) The method of claim 10, wherein measuring cross link interference in connection with the CLI-SRS transmission from the second UE in the CLI-SRS resource comprises: measuring cross link interference from sidelink transmission by the second UE on sidelink reception at the first UE based at least in part on the CLI-SRS transmission from the second UE in the CLI-SRS resource. ### Claim 17 (depends on 16) The method of claim 16, further comprising: determining a sidelink identifier for the second UE based at least in part on a mapping between the CLI-SRS resource and the sidelink identifier; and transmitting an indication of the cross link interference measured in the CLI-SRS resource to the second UE based at least in part on the sidelink identifier for the second UE. ### Claim 18 (depends on 16) The method of claim 16, further comprising: transmitting an indication of the cross link interference measured in the CLI-SRS resource on a cross link interference reporting resource associated with the CLI-SRS resource. ### Claim 19 (depends on 16) The method of claim 16, further comprising: receiving, via an inter-UE coordination message from the second UE, an indication that the CLI-SRS resource is associated with the second UE, wherein measuring the cross link interference from the sidelink transmission by the second UE on the sidelink reception at the first UE is based at least in part on receiving the indication that the CLI-SRS resource is associated with the second UE; and transmitting, via an inter-UE coordination message to the second UE, an indication of the cross link interference measured in the CLI-SRS resource. ### Claim 20 (depends on 1) The method of claim 1, wherein receiving the indication comprises receiving the indication to transmit the CLI-SRS in the CLI-SRS resource, and wherein transmitting the CLI-SRS in the CLI-SRS resource or measuring cross link interference comprises: transmitting the CLI-SRS in the CLI-SRS resource. ### Claim 21 (depends on 20) The method of claim 20, wherein receiving the indication to transmit the CLI-SRS in the CLI-SRS resource comprises: receiving, from a network entity, a configuration of a non-zero power CLI-SRS (NZP-CLI-SRS) for the CLI-SRS resource. ### Claim 22 A method of wireless communication performed by a network entity, comprising: transmitting, to a user equipment (UE), a cell-level cross link interference sounding reference signal (CLI-SRS) configuration, wherein the cell-level CLI-SRS configuration identifies CLI-SRS resources in one or more full-duplex slots for cross link interference measurements, the cross link interference measurements being associated with Uu communications that at least partially overlap in time with sidelink communications in the one or more full-duplex slots; and transmitting, to the UE, an indication to transmit a CLI-SRS, or to measure cross link interference, in a CLI-SRS resource of the CLI-SRS resources identified in the cell-level CLI-SRS configuration. ### Claim 23 (depends on 22) The method of claim 22, wherein transmitting the indication comprises transmitting, to the UE, the indication to measure cross link interference in the CLI-SRS resource. ### Claim 24 (depends on 23) The method of claim 23, further comprising: receiving, from the UE, an indication of the cross link interference measured in the CLI-SRS resource. ### Claim 25 (depends on 23) The method of claim 23, wherein the CLI-SRS resource is a periodic CLI-SRS configured for a sidelink resource pool, and wherein transmitting the indication to measure the cross link interference in the CLI-SRS resource comprises: transmitting, to the UE, a configuration of sidelink cross link interference measurement resources that indicates that an occurrence of the CLI-SRS in the sidelink resource pool is configured as a cross link interference measurement resource for the UE. ### Claim 26 (depends on 22) The method of claim 22, wherein transmitting the indication comprises: transmitting, to the UE, the indication to transmit the CLI-SRS in the CLI-SRS resource. ### Claim 27 A first user equipment (UE) for wireless communication, comprising: one or more memories; and one or more processors, coupled to the one or more memories, configured to: receive a cell-level cross link interference sounding reference signal (CLI-SRS) configuration, wherein the cell-level CLI-SRS configuration identifies CLI-SRS resources in one or more full-duplex slots for cross link interference measurements, the cross link interference measurements being associated with Uu communications that at least partially overlap in time with sidelink communications in the one or more full-duplex slots; receive an indication to transmit a CLI-SRS, or to measure cross link interference, in a CLI-SRS resource of the CLI-SRS resources identified in the cell-level CLI-SRS configuration; and transmit the CLI-SRS in the CLI-SRS resource or measure cross link interference in connection with a CLI-SRS transmission from a second UE in the CLI-SRS resource based at least in part on the indication. ### Claim 28 (depends on 27) The first UE of claim 27, wherein the one or more processors, to receive the indication, are configured to receive the indication to measure cross link interference in the CLI-SRS resource, and wherein the one or more processors, to transmit the CLI-SRS in the CLI-SRS resource or measure cross link interference, are configured to: measure cross link interference in connection with the CLI-SRS transmission from the second UE in the CLI-SRS resource. ### Claim 29 (depends on 27) The first UE of claim 27, wherein the one or more processors, to receive the indication, are configured to receive the indication to transmit the CLI-SRS in the CLI-SRS resource, and wherein the one or more processors, to transmit the CLI-SRS in the CLI-SRS resource or measure cross link interference, are configured to: transmit the CLI-SRS in the CLI-SRS resource. ### Claim 30 A network entity for wireless communication, comprising: one or more memories; and one or more processors, coupled to the one or more memories, configured to: transmit, to a user equipment (UE), a cell-level cross link interference sounding reference signal (CLI-SRS) configuration, wherein the cell-level CLI-SRS configuration identifies CLI-SRS resources in one or more full-duplex slots for cross link interference measurements, the cross link interference measurements being associated with Uu communications that at least partially overlap in time with sidelink communications in the one or more full-duplex slots; and transmit, to the UE, an indication to transmit a CLI-SRS, or to measure cross link interference, in a CLI-SRS resource of the CLI-SRS resources identified in the cell-level CLI-SRS configuration.