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WO2025199866A1 - Rapport d'interférence de liaison croisée et configurations de ressources - Google Patents

Rapport d'interférence de liaison croisée et configurations de ressources

Info

Publication number
WO2025199866A1
WO2025199866A1 PCT/CN2024/084411 CN2024084411W WO2025199866A1 WO 2025199866 A1 WO2025199866 A1 WO 2025199866A1 CN 2024084411 W CN2024084411 W CN 2024084411W WO 2025199866 A1 WO2025199866 A1 WO 2025199866A1
Authority
WO
WIPO (PCT)
Prior art keywords
cli
resources
measurements
sbfd
reference signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/084411
Other languages
English (en)
Inventor
Seyed Ali Akbar Fakoorian
Haitong Sun
Chunhai Yao
Wei Zeng
Dawei Zhang
Seung Hee Han
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Apple Inc
Original Assignee
Apple Inc
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Filing date
Publication date
Application filed by Apple Inc filed Critical Apple Inc
Priority to PCT/CN2024/084411 priority Critical patent/WO2025199866A1/fr
Publication of WO2025199866A1 publication Critical patent/WO2025199866A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex

Definitions

  • This application relates generally to wireless communication systems, including systems, apparatuses, and methods for cross link interference (CLI) reporting and resource configurations.
  • CLI cross link interference
  • 3GPP radio access networks
  • RANs can include, for example, global system for mobile communications (GSM) , enhanced data rates for GSM evolution (EDGE) RAN (GERAN) , Universal Terrestrial Radio Access Network (UTRAN) , Evolved Universal Terrestrial Radio Access Network (E-UTRAN) , and/or Next-Generation Radio Access Network (NG-RAN) .
  • GSM global system for mobile communications
  • EDGE enhanced data rates for GSM evolution
  • GERAN GERAN
  • UTRAN Universal Terrestrial Radio Access Network
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • NG-RAN Next-Generation Radio Access Network
  • Each RAN may use one or more radio access technologies (RATs) to perform communication between the network device and the UE.
  • RATs radio access technologies
  • the GERAN implements GSM and/or EDGE RAT
  • the UTRAN implements universal mobile telecommunication system (UMTS) RAT or other 3GPP RAT
  • the E-UTRAN implements LTE RAT (sometimes simply referred to as LTE)
  • NG-RAN implements NR RAT (sometimes referred to herein as 5G RAT, 5G NR RAT, or simply NR)
  • the E-UTRAN may also implement NR RAT.
  • NG-RAN may also implement LTE RAT.
  • a network device used by a RAN may correspond to that RAN.
  • E-UTRAN network device is an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Node B (also commonly denoted as evolved Node B, enhanced Node B, eNodeB, or eNB) .
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • eNodeB enhanced Node B
  • NG-RAN network device is a next generation Node B (also sometimes referred to as a g Node B or gNB) .
  • FIG. 1 shows an example wireless communication system, according to one or more aspects described herein.
  • FIG. 2 shows an example wireless communication system deploying subband full duplex (SBFD) , according to one or more aspects described herein.
  • SBFD subband full duplex
  • FIG. 3 shows an example signal flow, according to one or more aspects described herein.
  • FIG. 4B shows an example of cross-link interference (CLI) resource signaling, according to one or more aspects described herein.
  • CLI cross-link interference
  • FIG. 4C shows another example of CLI resource signaling, according to one or more aspects described herein.
  • FIG. 5 shows an example method, according to one or more aspects described herein.
  • FIG. 6 shows another example method, according to one or more aspects described herein.
  • FIG. 8 illustrates an example system for performing signaling between a wireless device and a network device, according to embodiments described herein.
  • a processor e.g., baseband processor
  • wireless device e.g., a user equipment (UE)
  • network device e.g., a network device.
  • UE user equipment
  • a processor e.g., baseband processor
  • wireless device e.g., a user equipment (UE)
  • network device e.g., a network device.
  • UE user equipment
  • a processor, wireless device, or network device is merely provided for illustrative purposes.
  • the example embodiments may be utilized with any electronic component or device that may establish a wireless connection and is configured with the hardware, software, and/or firmware to exchange information and data over the wireless connection. Therefore, the processors, wireless devices, and network devices described herein are used to represent any appropriate electronic components or devices.
  • Radio frequency spectrum bands used by a network device to serve UEs conventionally operate according to one of two modes: frequency domain duplexing (FDD) or time domain duplexing (TDD) .
  • FDD frequency domain duplexing
  • TDD time domain duplexing
  • each frequency band is dedicated to being either uplink or downlink.
  • a network device serving according to an FDD configuration may be faster and interfere less with neighboring network devices.
  • FDD may result in wasted spectrum by being relatively inflexible where there is asymmetric uplink and downlink traffic.
  • a frequency band is switched between uplink or downlink at different times.
  • a network device serving according to a TDD configuration may be relatively slower and interfere more with neighboring network devices than FDD.
  • TDD is more flexible to changing network conditions, for example by dynamically allocating greater or fewer resources between uplink and downlink as needed, and thus may more efficiently utilize spectrum.
  • FDD may be complicated to deploy and relatively inflexible, while TDD may provide inadequate throughput for uplink.
  • TDD may provide inadequate throughput for uplink.
  • Increasingly, operating using full duplex within a same frequency band is desired for network devices.
  • SBFD subband full duplex
  • a network device operates using full duplex in a frequency band, while UEs typically operate using half-duplex operation (although full duplex operation could also be used) .
  • One or more guard band separating uplink and downlink may be used to reduce interference.
  • Cross-link interference between different combinations of network devices and UEs are increasingly problematic with SBFD.
  • a network device may be operating in full duplex, transmitting to some UEs while receiving from other UEs in the same service area.
  • a victim UE attempting to receive in a frequency band may experience CLI from nearby aggressor UEs that are transmitting.
  • UEs may measure and report CLI to the network device so that the network device can take steps to help mitigate the CLI, such as scheduling resources for UEs to reduce the CLI between UEs.
  • CLI measurement reporting that is relatively slow, such as layer 3 measurement and reporting. Therefore, an increased rate of measurement and reporting may be desired, for example in dynamic environments including in serving cells where UEs are moving relatively quickly.
  • CLI reporting and resource configurations are described herein with reference to a communications system using SBFD communications, including a description of different interferences, including CLI, in the context of SBFD communications. Signaling diagrams are then described for providing CLI configurations, measurements, and reporting. Finally, processes, systems, and apparatuses are described that support CLI reporting and resource configurations as further described herein.
  • FIG. 1 shows an example wireless communications system 100, according to one or more aspects described herein.
  • wireless communications system 100 supports one or more aspects of CLI reporting and resource configurations, as further described herein.
  • Wireless communications system 100 includes one or more UE 102 that may be being served by (e.g., has an established radio resource control (RRC) connection with) a network device 104 via communication link 106.
  • Coverage area 108 is the service area for the RF spectrum band utilized by network device 104 serving the UE 102 (e.g., a cell or serving cell, which may include multiple cells) .
  • RRC radio resource control
  • UE 102 can comprise any mobile or non-mobile computing device configured for wireless communication, such as a watch, or an extended reality (XR) device, including virtual reality (VR) or augmented reality (AR) devices.
  • XR extended reality
  • VR virtual reality
  • AR augmented reality
  • UE 102 may be a system of components operating together as a UE 102.
  • Each SBFD slot 134 may span a quantity of OFDM symbols 122 (e.g., fourteen symbol periods) and be made up of a set of resource blocks 120 (e.g., physical resource blocks) spanning the frequency domain of the component carrier 110, where each resource block includes a quantity of subcarriers (e.g., 12 OFDM subcarriers per resource block) .
  • the downlink resources 114 span eight resource blocks 124, in two frequency groups of four resource blocks each.
  • the uplink resources 116 span two resource blocks 126, and are separated from the downlink resources 114 by two of guard bands 118 that each span one resource block 128.
  • FIG. 2 shows an example wireless communications system 200 deploying SBFD, according to one or more aspects described herein.
  • wireless communications system 200 supports one or more aspects of CLI reporting and resource configurations, as further described herein, and illustrates various interference types for in systems using SBFD.
  • Wireless communications system 200 includes a network device 104 serving a UE 102 and one or more additional of UE 206 using a SBFD serving cell having a coverage area 212.
  • the SBFD serving cell of network device 104 uses one or more slots that are SBFD slots 202.
  • Wireless communications system 200 also includes a network device 210 serving one or more UE 208 using a SBFD serving cell having a coverage area 214.
  • the SBFD serving cell of network device 210 uses one or more slots that are SBFD slots 204.
  • the UE 102 may be served by the network device 104 on a downlink 216 for the SBFD slots 202.
  • Another UE in the same serving cell as UE 102, for example the UE 206, may be served by the network device 104 on an uplink 218 for the SBFD slots 202.
  • the UE 102 attempting to receive on the downlink 216, may experience CLI 224 due to the transmissions by the UE 206 on the uplink 218.
  • the CLI 224 may also be referred to or be intra-cell UE-to-UE co-channel inter-subband CLI, for example the interference at a receiving UE from a UE in the same cell that is transmitting on frequency resources (e.g., subcarriers) that do not overlap.
  • the UE 102 may experience the CLI 226.
  • a UE in a different serving cell from the UE 102 may be served by the network device 210 on a downlink 234 and/or an uplink 232 for the SBFD slots 204.
  • the SBFD slots 202 and the SBFD slots 204 may occur during an overlapping time, but use a different set of frequency resources (e.g., different bands, different component carriers) .
  • the UE 208 may transmit on the uplink 232 for SBFD slot 204 during a same time as the UE 102 is attempting to receive on the downlink 216.
  • the UE 102 may experience the CLI 226 due to the transmissions by the UE 208 on the uplink 232.
  • the CLI 226 may also be referred to or be inter-cell UE-to-UE co-channel inter-subband CLI, for example the interference at a receiving UE from a UE in a neighboring cell that is transmitting on frequency resources (e.g., subcarriers) that do not overlap.
  • the network device 104 may experience network device self-interference 220.
  • the network device 104 may experience network device to network device co-channel inter-subband CLI 222 from a neighboring network device, the network device 210.
  • the network device 104 may experience network inter-cell UE to network device interference 228 (e.g., UE to network device UL co-channel interference) due to the transmissions by the UE 208 on the uplink 232.
  • the UE 102 may receive, from the network device 104, a CLI measurement configuration indicating a set of resources for CLI measurements for the SBFD serving cell of the network device 104.
  • the UE 102 may then perform, according to the CLI measurement configuration, CLI measurements using at least a portion of the downlink resources, such as the downlink resources of the SBFD slots 202.
  • the measurements may be received signal strength indicator (RSSI) measurements (RSSI CLI measurements) .
  • the measurements may be sounding reference signal (SRS) measurements (SRS CLI measurements) .
  • the UE 102 may then transmit, to the network device 104 a report that is based at least in part on the performed CLI measurements.
  • the report may be transmitted on the uplink 232.
  • the report may be a layer 1 or layer 2 report. That is the reporting may use layer 1 or layer 2 resources to report the CLI measurement results.
  • FIG. 3 shows an example signal flow 300, according to one or more aspects described herein.
  • signal flow 300 supports one or more aspects of CLI reporting and resource configurations, as further described herein.
  • Signal flow 300 includes signaling and actions by and between a UE 102, network device 104, and one or more UE 302.
  • the one or more UE 302 may be examples of UE described herein, including the UE 206 and/or the UE 208.
  • the UE 102 receives an indication of a SBFD configuration used by the network device 104 (e.g., of a SBFD serving cell served by the network device 104) .
  • the configuration of the SBFD serving cell identifies or otherwise indicates one or more subcarriers for downlink resources and one or more subcarriers for uplink, for example as further described with reference to wireless communications system 100.
  • the UE 102 may receive one or more control messages, such as system information (e.g., one or more master information blocks or system information blocks) and RRC signaling (e.g., RRC setup signaling) that identify for the UE 102 the SBFD configuration for the serving cell.
  • system information e.g., one or more master information blocks or system information blocks
  • RRC signaling e.g., RRC setup signaling
  • UE 102 may transmit UE capability signaling to the network device 104.
  • the UE capability signaling may be RRC signaling.
  • the UE capability signaling optionally may identify a UE capability to be configured with RSSI resources for the CLI measurements.
  • the UE capability signaling may also identify a maximum number of values that the UE can report for RSSI CLI measurements (e.g. MaxnrofReportedCLI-RSSI) .
  • the UE capability signaling may identify a UE capability to be configured with SRS resources for the CLI measurements.
  • the signaling may indicate a UE capability to be configured with both RSSI resources and SRS resources.
  • the UE capability signaling may identify a maximum number of values that the UE can report for SRS CLI measurements (e.g. MaxnrofReportedSRS-RSRP) .
  • the maximum number of values that the UE can report for RSSI CLI may be the same or different than the maximum number of values that the UE can report for SRS-RSRP, for example when both RSSI CLI and SRS-RSRP values are reported in a same report.
  • the UE 102 may receive from the network device 104 configuration signaling indicating a configuration for the UE 102 to use for CLI measurements and reporting by the UE 102.
  • the configuration signaling indicates resources for the UE 102 to use to measure CLI on the SBFD serving cell.
  • the configuration signaling may also provide a reporting configuration for the UE 102 to use to report the CLI measurements, as further discussed herein, including with reference to the CLI measurement report at 324.
  • the configuration signaling include an indication of CLI measurement resources (e.g., cli-ResourceForCrossLInkInterference) .
  • the indication of the CLI measurement resources may be in CSI reporting configuration signaling (e.g., CSI-ReportConfig) .
  • the CLI measurement configuration is associated with a CSI report configuration identifier (e.g., CSI-ResourceConfigId) of a CSI resource configuration, the CSI resource configuration identifying a list of CLI reference signal resources.
  • the corresponding identifier (e.g., CSI-ResourceConfigId) is associated with a CLI resource list (e.g., CLI-RS-ResourceList) , which may also be referred to as a list of CLI reference signal resources.
  • CLI resource list e.g., CLI-RS-ResourceList
  • the list of CLI reference signal resources may include one or more SRS resources for CLI measurements and one or more RSSI resources for CLI measurements.
  • the list of CLI reference signal resources (e.g., CLI-RS-ResourceList) may include one or more SRS resources for CLI measurements (e.g., SRS-ResourceConfigCLI) and one or more RSSI resources for CLI measurements (e.g., RSSIResourceConfigCLI) .
  • the CLI measurement configuration includes a list of CLI reference signal resources (e.g., CLI-RS-ResourceList) , and each CLI reference signal resource in the list of CLI reference signal resources is associated with a same serving cell index (e.g., ServCellIndex) as each other CLI reference signal resource in the list of CLI reference signal resources.
  • CLI-RS-ResourceList a list of CLI reference signal resources
  • ServCellIndex serving cell index
  • the CLI measurement configuration includes a list of CLI reference signal resources (e.g., CLI-RS-ResourceList) , and each CLI reference signal resource in the list of CLI reference signal resources is associated with a same bandwidth part (BWP) identifier (e.g., BWP-Id) as each other CLI reference signal resource in the list of CLI reference signal resources.
  • BWP bandwidth part
  • the UE ignores the carrier in the CSI reporting configuration (e.g., CSI-ReportConfig) , ignores the BWP identifier (e.g., bwp-Id) in the CSI resource configuration (e.g., CSI-ResourceConfig) , or both.
  • the UE ignores the reference serving cell index (e.g., refServCellIndex) and the reference BWP (e.g., ref-BWP) in the SRS resource configuration for CLI (e.g., SRS-ResourceConfirgCLI) , if configured. Additionally, or alternatively, the UE ignores the reference serving cell index (e.g., refServCellIndex) and the reference BWP (e.g., ref-BWP) in the SRS resource configuration for CLI (e.g., SRS-ResourceConfirgCLI) , if configured. Additionally, or alternatively, the UE ignores the reference serving cell index (e.g., refServCellIndex) in the RSSI resource configuration (e.g., RSSI-ResourceConfigCLI) , if configured.
  • the reference serving cell index e.g., refServCellIndex
  • the RSSI resource configuration e.g., RSSI-ResourceConfigCLI
  • the CLI measurement configuration includes a list of CLI reference signal resources, and SRS resources identified by the list of CLI reference signal resources are within the uplink resources of the SBFD serving cell.
  • the list of CLI reference signal resources e.g., CLI-RS-ResourceList
  • the SRS resources e.g., SRS-ResourceConfigCLI
  • SRS resources are configured within an uplink sub-band configuration, for example the configured uplink resources of the SBFD serving cell.
  • the CLI measurement configuration includes a list of CLI reference signal resources, and the RSSI resources identified by the list of CLI reference signal resources are within a downlink BWP that spans at least a portion of both the one or more subcarriers for the downlink resources and the one or more subcarriers for the uplink resources. In some embodiments, the RSSI resources identified by the list of CLI reference signal resources are within a portion of the one or more subcarriers for the downlink resources. In some embodiments, the RSSI resources identified by the list of CLI reference signal resources are within a portion of the one or more subcarriers for the uplink resources, and SRS resources are identified by the list of CLI reference signal resources.
  • the RSSI resources being within the downlink BWP, within the portion of downlink resources, or within the portion of uplink resources means that the starting physical resource block (PRB) (e.g., startPRB) and number of PRBs (e.g., nrofPRBs) for each resources are within the downlink BWP, within the portion of downlink resources, or within the portion of uplink resources, respectively.
  • PRB physical resource block
  • nrofPRBs e.g., nrofPRBs
  • the CSI resource configuration identifier associated with the CLI measurement configuration indicates a resource type of a set of resource types for resources in a list of CLI reference signal resources (e.g., CLI-RS-ResourceList) .
  • the CLI measurements may be performed according to the resource type.
  • the resource type may be one of aperiodic resources, semi-persistent resources, or periodic resources.
  • the UE 102 determines (identifies) the resource type for the CSI resource configuration identifier.
  • the list of CLI reference signal resources includes SRS resources or RSSI resources for CLI (e.g., SRS-ResourceConfigCLI or RSSI-ResourceConfigCLI)
  • the time domain behavior of each SRS resource is given by an indicator of a resource type in the configuration for SRS or RSSI resources, respectively.
  • an RSSI resource configuration for CLI indicates a slot offset for the aperiodic resources, or a periodicity and offset for the semi-persistent resources.
  • the UE 102 may receive RRC signaling indicating a number of SRS reports (e.g., nrofReportedSRS-RSRP) to report for different CLI RSSI for each report setting in a single report.
  • the number of SRS reports e.g., nrofReportedSRS-RSRP
  • the number of SRS reports is restricted (limited) to not be more than a maximum number of reports indicated in UE capability signaling (e.g., MaxnrofReportedCLI-RSSI) .
  • the configuration indicates for the report to include the resource index for the SRS CLI resources (e.g., SRS-ResourceConfigCLI) resource index in the corresponding resource list (e.g., CLI-RS-ResourceList) .
  • the UE 102 may be configured to report a certain quantity of (e.g., nrofReportedCLI-RSSI) worst (e.g., SRS-ResourceConfigCLI) resources. In other embodiments, the quantity of best resources is reported.
  • the reporting for the first resource for the SRS-RSRP measurement for CLI may be absolute (e.g., 7 bits representing the absolute measurement values) , but for other resources may be differential (e.g., 4 bits representing the measurement values relative to the absolute value) , as further specified herein.
  • the reporting for CLI applicable to CLI-RSSI-RI, CLI-RSSI, and differential CLI-RSSI may be similar.
  • the UE 102 may engage in communications with the network device 104 via at least the SBFD serving cell, including data and control.
  • the UE 102 receives a CLI control message.
  • the CLI control message is a MAC CE, for example as described with reference to the MAC CE 401.
  • the MAC CE indicates for the UE 102 to activate the set of resources for the CLI measurements, and identifies the SBFD serving cell.
  • the MAC CE includes an identifier indicating semi-persistent resources of a list of CLI reference signal resources.
  • the CLI control message is a DCI message, for example as described with reference to the CLI resource signaling 402 and/or the CLI resource signaling 403.
  • a candidate slot for the CLI measurements is based at least in part on a slot offset value, where the CLI measurements are performed in an SBFD slot subsequent to the candidate slot based on the candidate slot being a non-SBFD slot.
  • the UE 102 may determine the candidate slot.
  • the slot is the first SBFD slot following the candidate slot.
  • the UE 102 may optionally provide an acknowledgement of the received CLI control message, for example a received MAC CE (e.g., MAC CE 401) .
  • the UE 102 determines candidate slots for the CLI measurements based on a quantity of SBFD slots following the slot in which the acknowledgment was transmitted and received.
  • the quantity of slots may be determined in the case where the CLI-RS resources are semi-persistently configured resources.
  • the UE 102 performs CLI measurements using at least a portion of the downlink resources of the SBFD serving cell.
  • the UE 102 listens for and receive CLI signals (e.g., SRS, or signals for the RSSI measurements) according to the CLI measurement configuration at 314 and based on the CLI control message at 318.
  • CLI signals may be transmitted by one or more UE 302.
  • the UE 102 transmits a report to the network device 104 that includes CLI measurement results.
  • the report is transmitted by UE 102 using layer 1 resources, according to a CLI reporting field configuration.
  • the report is transmitted by UE 102 using layer 2 resources, according to the CLI reporting field configuration.
  • the CLI reporting fields for the report at 324 may be specified by Table 1, which specifies the bitwidth for the CSI-RS resource indicator (CRI) , SRS-RSRP, CLI-RSSI, differential RSRP, and differential RSSI:
  • CRI CSI-RS resource indicator
  • SRS-RSRP SRS-RSRP
  • CLI-RSSI CLI-RSSI
  • differential RSRP differential RSSI
  • SRS resources for CLI e.g., SRS-ResourceConfigCLI resources
  • RSSI resources for CLI e.g., RSSI-ResourceConfigCLI resources
  • CLI-RS-ResourceList e.g., CLI-RS-ResourceList
  • a mapping order for the CLI fields of a particular one report (e.g., #n) for the report at 324 may be specified by Table 2:
  • Table 2 Mapping order of CLI report fields of one report for CLI-RSSI and/or SRS-RSRP reporting
  • the bit width is given by the corresponding field provided by Table 1.
  • the UE 102 may be configured with one or both of a set of SRS resources (e.g., SRS-ResourceListConfigCLI) or a set of RSSI resources (e.g., RSSI-ResourceListConfigCLI) .
  • SRS-ResourceListConfigCLI a set of SRS resources
  • RSSI-ResourceListConfigCLI e.g., RSSI-ResourceListConfigCLI
  • the CLI measurement report 324 may be or include a report for both CLI-RSSI and SRS-RSRP.
  • the UE 102 may be configured to provide a single report including both CLI-RSSI and SRS-RSRP.
  • two or more relative priority levels may be defined, such where a priority 0 may be defined as a relatively higher priority than a priority 1.
  • priority 0 may include SRS-RSRP-RI #1, SRS-RSRP-RI #2, SRS-RSRP, and differential SRS-RSRP; and priority 1 may include CLI-RSSI-RI #1, CLI-RSSI-RI #2, CLI-RSSI, and differential CLI-RSSI.
  • priority 0 may include SRS-RSRP-RI #1, SRS-RSRP, CLI-RSSI-RI #1, and CLI-RSSI; and priority 1 may include SRS-RSRP-RI #2, differential SRS-RSRP, CLI-RSSI-RI #2, and differential CLI-RSSI.
  • all CLI reports with a certain report e.g., report #n
  • all CLI reports may be dropped together (e.g., if needed) .
  • not all slots of a serving cell are available for CLI measurements.
  • one or more slots of the serving cell may be configured for communication other than using SBFD.
  • not all slots are SBFD slots.
  • candidate slots in which the configured CLI-RS may be used for CLI measurements include the SBFD slots satisfying the following equation:
  • the method further includes receiving a CSI report configuration indicating the CLI measurement configuration.
  • the CLI measurement configuration is associated with a CSI report configuration identifier of a CSI resource configuration, the CSI resource configuration identifying a list of CLI reference signal resources.
  • the CLI measurement configuration includes a list of CLI reference signal resources, each CLI reference signal resource in the list of CLI reference signal resources being associated with a same serving cell index and a same BWP identifier as each other CLI reference signal resource in the list of CLI reference signal resources.
  • the CLI measurement configuration includes a list of CLI reference signal resources, and RSSI resources identified by the list of CLI reference signal resources are within a downlink BWP that spans at least a portion of both the one or more subcarriers for the downlink resources and the one or more subcarriers for the uplink resources.
  • the method further includes receiving a MAC CE that indicates to activate the set of resources for the CLI measurements; transmitting, in a slot, an acknowledgment of the received MAC CE; and determining candidate slots for the CLI measurements based at least in part on a quantity of SBFD slots following the slot in which the acknowledgment was transmitted.
  • the method further includes transmitting capability signaling identifying one or both of a maximum number of values that a UE can report for RSSI CLI measurements or a maximum number of values that the UE can report for SRS CLI measurements.
  • the method further includes transmitting capability signaling identifying a UE capability to transmit a single report based at least in part on both the processed CLI measurements and CSI measurements. In one or more embodiments, the method further includes obtaining CSI measurements; and determining a relative priority between reporting the processed CLI measurements and the obtained CSI measurements, where the report is transmitted according to the relative priority.
  • FIG. 6 shows an example method 600 of wireless communication by a network device.
  • method 600 supports one or more aspects of CLI reporting and resource configurations, as further described herein.
  • the network device may be the network device 104, network device 820, or one of the other network devices described herein.
  • the method 600 may be performed using a processor, a transceiver (e.g., main radio) , or other components of the network device.
  • the method 600 includes transmitting an SBFD configuration for a SBFD serving cell, including both downlink and uplink resources.
  • the method 600 includes transmitting an indication of a configuration of a SBFD serving cell, the configuration identifying one or more subcarriers for downlink resources of the SBFD serving cell that are frequency domain multiplexed with one or more subcarriers for uplink resources of the SBFD serving cell.
  • the method further includes transmitting a CSI report configuration indicating the CLI measurement configuration.
  • the CLI measurement configuration is associated with a CSI report configuration identifier of a CSI resource configuration, the CSI resource configuration identifying a list of CLI reference signal resources.
  • the CLI measurement configuration includes a list of CLI reference signal resources, each CLI reference signal resource in the list of CLI reference signal resources being associated with a same serving cell index and a same BWP identifier as each other CLI reference signal resource in the list of CLI reference signal resources.
  • the CLI measurement configuration includes a list of CLI reference signal resources, and SRS resources identified by the list of CLI reference signal resources are within the uplink resources of the SBFD serving cell.
  • the CLI measurement configuration includes a list of CLI reference signal resources, and RSSI resources identified by the list of CLI reference signal resources are within a downlink BWP that spans at least a portion of both the one or more subcarriers for the downlink resources and the one or more subcarriers for the uplink resources.
  • the CLI measurement configuration includes a list of CLI reference signal resources, and RSSI resources identified by the list of CLI reference signal resources are within a portion of the one or more subcarriers for the downlink resources.
  • the CLI measurement configuration includes a list of CLI reference signal resources, and RSSI resources identified by the list of CLI reference signal resources are within a portion of the one or more subcarriers for the uplink resources, and SRS resources are identified by the list of CLI reference signal resources.
  • the method further includes determining, for a CSI resource configuration identifier associated with the CLI measurement configuration, a resource type of a plurality of resource types for resources in a list of CLI reference signal resources, where the CLI measurements are performed by the UE according to the resource type, and the resource type includes one of aperiodic resources, semi-persistent resources, or periodic resources.
  • the list of CLI reference signal resources includes RSSI resources for the CLI measurements, and a RSSI resource configuration for CLI indicates a slot offset for the aperiodic resources or a periodicity and offset for the semi-persistent resources.
  • the method further includes transmitting, to the UE, a MAC CE that indicates to activate the set of resources for the CLI measurements; receiving, from the UE in a slot, an acknowledgment of the received MAC CE; and determining candidate slots for the CLI measurements based at least in part on a quantity of SBFD slots following the slot in which the acknowledgment was received.
  • the method further includes transmitting, to the UE, a DCI message scheduling the at least a portion of the downlink resources for the CLI measurements; determining a candidate slot for the CLI measurements based at least in part on a slot offset value, where the CLI measurements are performed by the UE in an SBFD slot subsequent to the candidate slot based at least in part on the candidate slot being a non-SBFD slot.
  • the method further includes identifying layer 1 or layer 2 resources to use to transmit the report according to a CLI reporting field configuration, the report transmitted using the layer 1 or layer 2 resources. In one or more embodiments, the method further includes receiving, from the UE, capability signaling identifying a UE capability to be configured with one or more of RSSI resources or SRS resources for the CLI measurements.
  • the method further includes receiving, from the UE, capability signaling identifying one or both of a maximum number of values that a UE can report for RSSI CLI measurements or a maximum number of values that the UE can report for SRS CLI measurements.
  • the method further includes receiving, from the UE, capability signaling identifying a UE capability to transmit a single report based at least in part on both the CLI measurements and CSI measurements. In one or more embodiments, the method further includes determining a relative priority between reporting the CLI measurements and the CSI measurements, where the report is received according to the relative priority.
  • the method 600 may be variously embodied, extended, or adapted, as described in the following paragraphs and elsewhere in this description.
  • Embodiments contemplated herein include one or more non-transitory computer-readable media storing instructions to cause an electronic device, upon execution of the instructions by one or more processors of the electronic device, to perform one or more elements of the method 500 or 600.
  • this non-transitory computer-readable media may be, for example, a memory of a UE (such as a memory 806 of a wireless device 802 that is a UE, as described herein) or of a processor.
  • this non-transitory computer-readable media may be, for example, a memory of a network device (such as a memory 824 of a network device 820, as described herein) .
  • Embodiments contemplated herein include an apparatus having logic, modules, or circuitry to perform one or more elements of the method 500 or 600.
  • this apparatus may be, for example, an apparatus of a UE (such as a wireless device 802 that is a UE) .
  • this apparatus may be, for example, an apparatus of a network device (such as a network device 820, as described herein) .
  • Embodiments contemplated herein include an apparatus having one or more processors and one or more computer-readable media, using or storing instructions that, when executed by the one or more processors, cause the one or more processors to perform one or more elements of the method 500 or 600.
  • this apparatus may be, for example, an apparatus of a UE (such as a wireless device 802 that is a UE, as described herein) .
  • this apparatus may be, for example, an apparatus of a network device (such as a network device 820, as described herein) .
  • Embodiments contemplated herein include a signal as described in or related to one or more elements of the method 500, or 600.
  • Embodiments contemplated herein include a computer program or computer program product having instructions, wherein execution of the program by a processor causes the processor to carry out one or more elements of the method 500 or 600.
  • the processor may be a processor of a UE (such as a processor (s) 804 of a wireless device 802 that is a UE, as described herein)
  • the instructions may be, for example, located in the processor and/or on a memory of the UE (such as a memory 806 of a wireless device 802 that is a UE, as described herein) .
  • FIG. 7 illustrates an example architecture of a wireless communication system, according to embodiments described herein.
  • the following description is provided for an example wireless communication system 700 that operates in conjunction with the LTE system standards or specifications and/or 5G or NR system standards or specifications, as provided by 3GPP technical specifications.
  • the wireless communication system 700 includes UE 702 and UE 704 (although any number of UEs may be used) .
  • the UE 702 and the UE 704 are illustrated as smartphones (e.g., handheld touchscreen mobile computing devices connectable to one or more cellular networks) but may also comprise any mobile or non-mobile computing device configured for wireless communication.
  • the UE 702 and UE 704 may be configured to communicatively couple with a RAN 706.
  • the RAN 706 may be NG-RAN, E-UTRAN, etc.
  • the UE 702 and UE 704 utilize connections (or channels) (shown as connection 708 and connection 710, respectively) with the RAN 706, each of which comprises a physical communications interface.
  • the RAN 706 can include one or more network devices, such as base station 712 and base station 714, that enable the connection 708 and connection 710.
  • connection 708 and connection 710 are air interfaces to enable such communicative coupling and may be consistent with RAT (s) used by the RAN 706, such as, for example, an LTE and/or NR.
  • the UE 702 and UE 704 may also directly exchange communication data via a sidelink interface 716.
  • the UE 704 is shown to be configured to access an access point (shown as AP 718) via connection 720.
  • the connection 720 can comprise a local wireless connection, such as a connection consistent with any IEEE 802.11 protocol, wherein the AP 718 may comprise a router.
  • the AP 718 may be connected to another network (for example, the Internet) without going through a CN 724.
  • the UE 702 and UE 704 can be configured to communicate using orthogonal frequency division multiplexing (OFDM) communication signals with each other or with the base station 712 and/or the base station 714 over a multicarrier communication channel in accordance with various communication techniques, such as, but not limited to, an orthogonal frequency division multiple access (OFDMA) communication technique (e.g., for downlink communications) or a single carrier frequency division multiple access (SC-FDMA) communication technique (e.g., for uplink and ProSe or sidelink communications) , although the scope of the embodiments is not limited in this respect.
  • OFDM signals can comprise a plurality of orthogonal subcarriers.
  • the base station 712 or base station 714 may be implemented as one or more software entities running on server computers as part of a virtual network.
  • the base station 712 or base station 714 may be configured to communicate with one another via interface 722.
  • the interface 722 may be an X2 interface.
  • the X2 interface may be defined between two or more network devices of a RAN (e.g., two or more eNBs and the like) that connect to an EPC, and/or between two eNBs connecting to the EPC.
  • the interface 722 may be an Xn interface.
  • the Xn interface is defined between two or more network devices of a RAN (e.g., two or more gNBs and the like) that connect to the 5GC, between a base station 712 (e.g., a gNB) connecting to the 5GC and an eNB, and/or between two eNBs connecting to the 5GC (e.g., CN 724) .
  • the RAN 706 is shown to be communicatively coupled to the CN 724.
  • the CN 724 may comprise one or more network elements 726, which are configured to offer various data and telecommunications services to customers/subscribers (e.g., users of UE 702 and UE 704) who are connected to the CN 724 via the RAN 706.
  • the components of the CN 724 may be implemented in one physical device or separate physical devices including components to read and execute instructions from a machine-readable or computer-readable medium (e.g., a non-transitory machine-readable storage medium) .
  • an application server 730 may be an element offering applications that use internet protocol (IP) bearer resources with the CN 724 (e.g., packet switched data services) .
  • IP internet protocol
  • the application server 730 can also be configured to support one or more communication services (e.g., VoIP sessions, group communication sessions, etc. ) for the UE 702 and UE 704 via the CN 724.
  • the application server 730 may communicate with the CN 724 through an IP communications interface 732.
  • FIG. 8 illustrates an example system 800 for performing signaling 838 between a wireless device 802 and a network device 820, according to embodiments described herein.
  • the system 800 may be a portion of a wireless communication system as herein described.
  • the wireless device 802 may be, for example, a UE of a wireless communication system.
  • the network device 820 may be, for example, a base station (e.g., an eNB or a gNB) or a radio head of a wireless communication system.
  • the wireless device 802 may include one or more processor (s) 804.
  • the processor (s) 804 may execute instructions such that various operations of the wireless device 802 are performed, as described herein.
  • the processor (s) 804 may include one or more baseband processors implemented using, for example, a central processing unit (CPU) , a digital signal processor (DSP) , an application specific integrated circuit (ASIC) , a controller, a field programmable gate array (FPGA) device, another hardware device, a firmware device, or any combination thereof configured to perform the operations described herein.
  • CPU central processing unit
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the wireless device 802 may include a memory 806.
  • the memory 806 may be a non-transitory computer-readable storage medium that stores instructions 808 (which may include, for example, the instructions being executed by the processor (s) 804) .
  • the instructions 808 may also be referred to as program code or a computer program.
  • the memory 806 may also store data used by, and results computed by, the processor (s) 804.
  • the wireless device 802 may include one or more transceiver (s) 810 (also collectively referred to as a transceiver 810) that may include radio frequency (RF) transmitter and/or receiver circuitry that use the antenna (s) 812 of the wireless device 802 to facilitate signaling (e.g., the signaling 838) to and/or from the wireless device 802 with other devices (e.g., the network device 820) according to corresponding RATs.
  • RF radio frequency
  • the wireless device 802 may include one or more antenna (s) 812 (e.g., one, two, four, eight, or more) .
  • the wireless device 802 may leverage the spatial diversity of such multiple antenna (s) 812 to send and/or receive multiple different data streams on the same time and frequency resources.
  • This behavior may be referred to as, for example, MIMO behavior (referring to the multiple antennas used at each of a transmitting device and a receiving device that enable this aspect) .
  • MIMO transmissions by the wireless device 802 may be accomplished according to precoding (or digital beamforming) that is applied at the wireless device 802 that multiplexes the data streams across the antenna (s) 812 according to known or assumed channel characteristics such that each data stream is received with an appropriate signal strength relative to other streams and at a desired location in the spatial domain (e.g., the location of a receiver associated with that data stream) .
  • Some embodiments may use single user MIMO (SU-MIMO) methods (where the data streams are all directed to a single receiver) and/or multi-user MIMO (MU-MIMO) methods (where individual data streams may be directed to individual (different) receivers in different locations in the spatial domain) .
  • SU-MIMO single user MIMO
  • MU-MIMO multi-user MIMO
  • the wireless device 802 may implement analog beamforming techniques, whereby phases of the signals sent by the antenna (s) 812 are relatively adjusted such that the (joint) transmission of the antenna (s) 812 can be directed (this is sometimes referred to as beam steering) .
  • the wireless device 802 may include one or more interface (s) 814.
  • the interface (s) 814 may be used to provide input to or output from the wireless device 802.
  • a wireless device 802 that is a UE may include interface (s) 814 such as microphones, speakers, a touchscreen, buttons, and the like in order to allow for input and/or output to the UE by a user of the UE.
  • Other interfaces of such a UE may be made up of transmitters, receivers, and other circuitry (e.g., other than the transceiver (s) 810/antenna (s) 812 already described) that allow for communication between the UE and other devices and may operate according to known protocols (e.g., and the like) .
  • the wireless device 802 may include CLI measurement manager 816.
  • the CLI measurement manager 816 may be implemented via hardware, software, or combinations thereof.
  • the CLI measurement manager 816 may be implemented as a processor, circuit, and/or instructions 808 stored in the memory 806 and executed by the processor (s) 804.
  • the CLI measurement manager 816 may be integrated within the processor (s) 804 and/or the transceiver (s) 810.
  • the CLI measurement manager 816 may be implemented by a combination of software components (e.g., executed by a DSP or a general processor) and hardware components (e.g., logic gates and circuitry) within the processor (s) 804 or the transceiver (s) 810.
  • the CLI measurement manager 816 may be used for various aspects of the present disclosure, for example, aspects of FIGs. 1-8, from a wireless device or UE perspective.
  • the CLI measurement manager 816 may be configured to, for example, perform receiving an indication of a configuration of a SBFD serving cell, the configuration identifying one or more subcarriers for downlink resources of the SBFD serving cell that are frequency domain multiplexed with one or more subcarriers for uplink resources of the SBFD serving cell; receiving or obtaining a CLI measurement configuration indicating a set of resources for CLI measurements for the SBFD serving cell; processing, according to the CLI measurement configuration, the CLI measurements obtained using at least a portion of the downlink resources; and transmitting a report based at least in part on the performed CLI measurements.
  • the network device 820 may include one or more processor (s) 822.
  • the processor (s) 822 may execute instructions such that various operations of the network device 820 are performed, as described herein.
  • the processor (s) 822 may include one or more baseband processors implemented using, for example, a CPU, a DSP, an ASIC, a controller, an FPGA device, another hardware device, a firmware device, or any combination thereof configured to perform the operations described herein.
  • the network device 820 may include a memory 824.
  • the memory 824 may be a non-transitory computer-readable storage medium that stores instructions 826 (which may include, for example, the instructions being executed by the processor (s) 822) .
  • the instructions 826 may also be referred to as program code or a computer program.
  • the memory 824 may also store data used by, and results computed by, the processor (s) 822.
  • the network device 820 may include one or more transceiver (s) 828 (also collectively referred to as a transceiver 828) that may include RF transmitter and/or receiver circuitry that use the antenna (s) 830 of the network device 820 to facilitate signaling (e.g., the signaling 838) to and/or from the network device 820 with other devices (e.g., the wireless device 802) according to corresponding RATs.
  • transceiver (s) 828 also collectively referred to as a transceiver 828) that may include RF transmitter and/or receiver circuitry that use the antenna (s) 830 of the network device 820 to facilitate signaling (e.g., the signaling 838) to and/or from the network device 820 with other devices (e.g., the wireless device 802) according to corresponding RATs.
  • the network device 820 may include one or more antenna (s) 830 (e.g., one, two, four, or more) .
  • the network device 820 may perform MIMO, digital beamforming, analog beamforming, beam steering, etc., as has been described.
  • the network device 820 may include one or more interface (s) 832.
  • the interface (s) 832 may be used to provide input to or output from the network device 820.
  • a network device 820 of a RAN e.g., a base station, a radio head, etc.
  • the network device 820 may include at least one CLI measurement manager 834.
  • the CLI measurement manager 834 may be implemented via hardware, software, or combinations thereof.
  • the CLI measurement manager 834 may be implemented as a processor, circuit, and/or instructions 826 stored in the memory 824 and executed by the processor (s) 822.
  • the CLI measurement manager 834 may be integrated within the processor (s) 822 and/or the transceiver (s) 828.
  • the CLI measurement manager 834 may be implemented by a combination of software components (e.g., executed by a DSP or a general processor) and hardware components (e.g., logic gates and circuitry) within the processor (s) 822 or the transceiver (s) 828.
  • the CLI measurement manager 834 may be used for various aspects of the present disclosure, for example, aspects of FIGs. 1-8, from a network device perspective.
  • the CLI measurement manager 834 may be configured to, for example, perform transmitting an indication of a configuration of a SBFD serving cell, the configuration identifying one or more subcarriers for downlink resources of the SBFD serving cell that are frequency domain multiplexed with one or more subcarriers for uplink resources of the SBFD serving cell; transmitting, to a UE, a CLI measurement configuration indicating a set of resources for CLI measurements for the SBFD serving cell; and receiving, from the UE, a report based at least in part on the CLI measurements performed by the UE according to the CLI measurement configuration using at least a portion of the downlink resources.
  • At least one of the components set forth in one or more of the preceding figures may be configured to perform one or more operations, techniques, processes, and/or methods as set forth herein.
  • a baseband processor or processor
  • circuitry associated with a UE, network device, network element, etc. as described above in connection with one or more of the preceding figures may be configured to operate in accordance with one or more of the examples set forth herein.
  • Embodiments and implementations of the systems and methods described herein may include various operations, which may be embodied in machine-executable instructions to be executed by a computer system.
  • a computer system may include one or more general-purpose or special-purpose computers (or other electronic devices) .
  • the computer system may include hardware components that include specific logic for performing the operations or may include a combination of hardware, software, and/or firmware.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un UE, un processeur de bande de base, et un dispositif de réseau. L'UE ou le processeur de bande de base peut recevoir une indication d'une configuration d'une cellule de desserte en duplex intégral de sous-bande (SBFD). La configuration peut identifier une ou plusieurs sous-porteuses pour des ressources de liaison descendante de la cellule de desserte SBFD qui sont multiplexées dans le domaine fréquentiel avec une ou plusieurs sous-porteuses pour des ressources de liaison montante de la cellule de desserte SBFD. L'UE ou le processeur de bande de base peut ensuite recevoir une configuration de mesure d'interférence de liaison croisée (CLI) indiquant un ensemble de ressources pour des mesures de CLI pour la cellule de desserte SBFD. L'UE ou le processeur de bande de base met alors en œuvre, selon la configuration de mesure de CLI, les mesures de CLI au moyen d'au moins une partie des ressources de liaison descendante, et transmet, au dispositif de réseau desservant la cellule de desserte SBFD, un rapport sur la base, au moins en partie, des mesures de CLI mises en œuvre.
PCT/CN2024/084411 2024-03-28 2024-03-28 Rapport d'interférence de liaison croisée et configurations de ressources Pending WO2025199866A1 (fr)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220014954A1 (en) * 2020-07-10 2022-01-13 Qualcomm Incorporated Method and apparatus for cli reporting
WO2022056822A1 (fr) * 2020-09-18 2022-03-24 Qualcomm Incorporated Configuration d'un rapport d'interférence inter-liaison (cli) en duplex intégral
US20230057616A1 (en) * 2020-04-10 2023-02-23 Qualcomm Incorporated Cross-link interference measurement configuration
US20230164606A1 (en) * 2021-11-19 2023-05-25 Qualcomm Incorporated Inter-ue cross-link interference (cli) mitigation for base station in full duplex mode
WO2023212080A1 (fr) * 2022-04-26 2023-11-02 Intel Corporation Procédés et agencements d'atténuation d'interférence de liaison croisée
WO2024035209A1 (fr) * 2022-08-11 2024-02-15 엘지전자 주식회사 Procédé permettant à un terminal d'effectuer des mesures dans un système de communication sans fil, et dispositif associé

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230057616A1 (en) * 2020-04-10 2023-02-23 Qualcomm Incorporated Cross-link interference measurement configuration
US20220014954A1 (en) * 2020-07-10 2022-01-13 Qualcomm Incorporated Method and apparatus for cli reporting
WO2022056822A1 (fr) * 2020-09-18 2022-03-24 Qualcomm Incorporated Configuration d'un rapport d'interférence inter-liaison (cli) en duplex intégral
US20230164606A1 (en) * 2021-11-19 2023-05-25 Qualcomm Incorporated Inter-ue cross-link interference (cli) mitigation for base station in full duplex mode
WO2023212080A1 (fr) * 2022-04-26 2023-11-02 Intel Corporation Procédés et agencements d'atténuation d'interférence de liaison croisée
WO2024035209A1 (fr) * 2022-08-11 2024-02-15 엘지전자 주식회사 Procédé permettant à un terminal d'effectuer des mesures dans un système de communication sans fil, et dispositif associé

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