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WO2025232817A1 - Procédés et appareil pour la notification autonome d'interférence de liaison croisée dans des communications mobiles - Google Patents

Procédés et appareil pour la notification autonome d'interférence de liaison croisée dans des communications mobiles

Info

Publication number
WO2025232817A1
WO2025232817A1 PCT/CN2025/093352 CN2025093352W WO2025232817A1 WO 2025232817 A1 WO2025232817 A1 WO 2025232817A1 CN 2025093352 W CN2025093352 W CN 2025093352W WO 2025232817 A1 WO2025232817 A1 WO 2025232817A1
Authority
WO
WIPO (PCT)
Prior art keywords
report
cli
partitioned
symbols
reception
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/CN2025/093352
Other languages
English (en)
Inventor
Sumaila Anning MAHAMA
Mohammed S Aleabe AL-IMARI
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.)
MediaTek Inc
Original Assignee
MediaTek Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MediaTek Inc filed Critical MediaTek Inc
Publication of WO2025232817A1 publication Critical patent/WO2025232817A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition

Definitions

  • the present disclosure is generally related to mobile communications and, more particularly, to autonomous cross link interference (CLI) reporting with respect to user equipment (UE) and network apparatus in mobile communications.
  • CLI autonomous cross link interference
  • 3rd Generation Partnership Project (3GPP) Release 19 enables full-duplex operation, allowing simultaneous transmission and reception on overlapping time resources with a base station. This boosts maximum data throughput and reduces latency. However, this concurrency among multiple UEs can cause UE-to-UE cross link interference (CLI) .
  • CLI occurs when a UE receiving downlink data is interfered with by another UE transmitting uplink data, or vice versa.
  • SRS-RSRP sounding reference signal-reference signal received power
  • CLI-RSSI CLI-received signal strength indicator
  • An objective of the present disclosure is to propose solutions or schemes that address the aforementioned issues pertaining to autonomous cross link interference (CLI) reporting with respect to user equipment (UE) and network apparatus in mobile communications.
  • CLI autonomous cross link interference
  • a method may involve an apparatus receiving a report triggering threshold defined based on a downlink (DL) channel quality on one or more partitioned symbols. The method may also involve the apparatus determining whether to transmit a CLI report based on an interference experienced during a DL reception on the one or more partitioned symbols and the report triggering threshold.
  • DL downlink
  • an apparatus may comprise a transceiver which, during operation, wirelessly communicates with a network node of a wireless network.
  • the apparatus may also comprise a processor communicatively coupled to the transceiver.
  • the processor may perform operations comprising receiving, via the transceiver, a report triggering threshold defined based on a DL channel quality on one or more partitioned symbols.
  • the processor during operation, may further perform operations comprising determining whether to transmit a CLI report based on an interference experienced during a DL reception on the one or more partitioned symbols and the report triggering threshold.
  • a method may involve a network node transmitting a report triggering threshold defined based on a DL channel quality on one or more partitioned symbols to a UE. The method may further involve the network node receiving a CLI report based on the report triggering threshold from the UE.
  • LTE Long-Term Evolution
  • LTE-Advanced Long-Term Evolution-Advanced
  • LTE-Advanced Pro 5th Generation
  • NR New Radio
  • IoT Internet-of-Things
  • NB-IoT Narrow Band Internet of Things
  • IIoT Industrial Internet of Things
  • 6G 6th Generation
  • FIG. 1 is a diagram depicting an example scenario of a communication environment in which various solutions and schemes in accordance with the present disclosure may be implemented.
  • FIG. 2 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
  • FIG. 3 is a block diagram of an example communication system in accordance with an implementation of the present disclosure.
  • FIG. 4 is a flowchart of an example process in accordance with an implementation of the present disclosure.
  • FIG. 5 is a flowchart of another example process in accordance with an implementation of the present disclosure. DETAILED DESCRIPTION OF PREFERRED IMPLEMENTATIONS
  • Implementations in accordance with the present disclosure relate to various techniques, methods, schemes and/or solutions pertaining to autonomous cross link interference (CLI) reporting with respect to user equipment (UE) and network apparatus in mobile communications.
  • CLI autonomous cross link interference
  • UE user equipment
  • a number of possible solutions may be implemented separately or jointly. That is, although these possible solutions may be described below separately, two or more of these possible solutions may be implemented in one combination or another.
  • FIG. 1 illustrates an example scenario 100 under schemes in accordance with implementations of the present disclosure.
  • Scenario 100 involves at least one network node and a UE, which may be a part of a wireless communication network (e.g., an LTE network, a 5G/NR network, an IoT network or a 6G network) .
  • Scenario 100 illustrates the network framework.
  • the UE may connect to the network side.
  • the network side may comprise one or more network nodes.
  • the UE may be configured with a framework for autonomously triggering and reporting UE-to-UE CLI via medium access control -control element (MAC-CE) .
  • the reporting framework enables the UE to report a blockage event to the network node without dedicated CLI measurement resources and may be triggered based on channel conditions on partitioned symbols.
  • the network node may configure the UE with a report triggering threshold, which may be configured by a radio resource control (RRC) configuration and is defined/determined based on a downlink (DL) channel quality on one or more partitioned symbols.
  • RRC radio resource control
  • the DL channel quality may be associated with a channel estimation error and/or an error rate on the partitioned symbols.
  • a symbol is considered as a partitioned symbol if it includes both DL and uplink (UL) resources. Conversely, if a symbol contains only DL or only UL resources, it is considered as a non-partitioned symbol.
  • the sub-band full duplex (SBFD) symbol 210 is a partitioned symbol, while the DL symbol 220 and UL symbol 230 are non-partitioned symbols.
  • the UE may determine whether to transmit a CLI report (also referred to as the UE-to-UE CLI report) by checking if a trigger condition is met.
  • the trigger condition is satisfied when the interference experienced during any DL reception on the partitioned symbols exceeds the report triggering threshold.
  • the DL reception on the partitioned symbols may be associated with a reception of demodulation reference signal (DMRS) for physical downlink shared channel (PDSCH) , a DMRS for physical downlink control channel (PDCCH) , a PDSCH reception, or other DL receptions.
  • DMRS demodulation reference signal
  • PDSCH physical downlink shared channel
  • PDCCH physical downlink control channel
  • the UE when the report triggering threshold is defined/determined based on the channel estimation error on the partitioned symbols, the UE may be triggered to transmit the CLI report if the channel estimation error experienced during a PDSCH DMRS reception on partitioned symbols becomes greater than the report triggering threshold.
  • the UE when the report triggering threshold is defined/determined based on the channel estimation error on the partitioned symbols, the UE may be triggered to transmit the CLI report if the channel estimation error experienced during a PDCCH DMRS reception on partitioned symbols becomes greater than the report triggering threshold.
  • the UE when the report triggering threshold is defined/determined based on the error rate on the partitioned symbols, the UE may be triggered to transmit the CLI report if the error rate experienced during a PDSCH reception on partitioned symbols becomes greater than the report triggering threshold.
  • the report triggering threshold may be defined/determined based on multiple DL channel quality factors on the partitioned symbols, and the trigger condition is met when the interference related to at least one of those factors, experienced during any DL reception on the partitioned symbols, exceeds the report triggering threshold.
  • the report triggering threshold is defined/determined based on the channel estimation error and the error rate on partitioned symbols
  • the UE may be triggered to transmit the CLI report if the report triggering threshold is exceeded by any of the following experienced on partitioned symbols: channel estimation error during PDSCH DMRS reception, channel estimation error during PDCCH DMRS reception, or the error rate during PDSCH reception.
  • the MAC entity of the UE when triggered to transmit the CLI report, may first check for available resources on the uplink-shared channel (UL-SCH) for a new transmission. If sufficient resources are available on the UL-SCH to accommodate the CLI report MAC-CE and its associated sub-header, the MAC entity of the UE may instruct an internal procedure (e.g., multiplexing and assembly procedure) to generate the CLI report MAC-CE for transmission to the network node. This ensures that the CLI report is only sent when adequate transmission capacity is present, thereby preventing unnecessary transmission failures or resource collisions.
  • an internal procedure e.g., multiplexing and assembly procedure
  • the UE may detect, without dedicated CLI measurement resources, that the interference level experienced during any DL reception has exceeded the threshold. Consequently, the UE may report the detected interference value to the network node as UE-to-UE CLI using MAC-CE (i.e., via layer 2 (L2) signaling) .
  • L2 layer 2
  • scenario 100 may provide a framework for autonomously triggering and reporting UE-to-UE CLI via RRC.
  • the UE is configured with a timer (e.g., T310 timer) in addition to the report triggering threshold, and the decision to transmit a CLI report is determined by checking if the trigger condition is met in conjunction with the configured timer.
  • the UE may start the configured timer. While the timer is running, the UE may continuously monitor the trigger condition.
  • the UE may stop the timer and determine not to transmit the CLI report to the network node.
  • the UE may transmit the CLI report to the network node.
  • the CLI report may be conveyed within the uplink (UL) -dedicated control channel (DCCH) -message class.
  • the CLI report may be included within a failure information message.
  • a new definition for the parameter "FailureType” may be introduced, such as defining "cliBlockage” as the failure type for a CLI report.
  • a dedicated new message for example named “cliBlockageInformation, " may be defined for the purpose of the CLI reporting. The UE may then utilize this newly defined message to inform the network node about a potential blockage event that it has detected.
  • the UE may monitor, detect, and report severe CLI without dedicated CLI measurement resources. Since sounding reference signal-reference signal received power (SRS-RSRP) or CLI-received signal strength indicator (CLI-RSSI) measurement resources are not needed, the network node may allocate these resources for other uses, such as data transmission or reception, thus improving resource efficiency. Furthermore, this serves as a protective mechanism in situations where the UE is not configured with dedicated CLI measurement resources, allowing the UE to proactively detect and report severe blockage caused by UL transmission from nearby UEs and protect itself independently of network CLI measurement resource configuration.
  • SRS-RSRP sounding reference signal-reference signal received power
  • CLI-RSSI CLI-received signal strength indicator
  • FIG. 3 illustrates an example communication system 300 having an example communication apparatus 310 and an example network apparatus 320 in accordance with an implementation of the present disclosure.
  • Each of communication apparatus 310 and network apparatus 320 may perform various functions to implement schemes, techniques, processes and methods described herein pertaining to autonomous CLI reporting with respect to UE and network apparatus in mobile communications, including scenarios/schemes described above as well as processes 400 and 500 described below.
  • Communication apparatus 310 may be a part of an electronic apparatus, which may be a UE such as a portable or mobile apparatus, a wearable apparatus, a wireless communication apparatus or a computing apparatus.
  • communication apparatus 310 may be implemented in a smartphone, a smartwatch, a personal digital assistant, a digital camera, or a computing equipment such as a tablet computer, a laptop computer or a notebook computer.
  • Communication apparatus 310 may also be a part of a machine type apparatus, which may be an IoT, NB-IoT, or IIoT apparatus such as an immobile or a stationary apparatus, a home apparatus, a wire communication apparatus or a computing apparatus.
  • communication apparatus 310 may be implemented in a smart thermostat, a smart fridge, a smart door lock, a wireless speaker or a home control center.
  • communication apparatus 310 may be implemented in the form of one or more integrated-circuit (IC) chips such as, for example and without limitation, one or more single-core processors, one or more multi-core processors, one or more reduced-instruction set computing (RISC) processors, or one or more complex-instruction-set-computing (CISC) processors.
  • IC integrated-circuit
  • RISC reduced-instruction set computing
  • CISC complex-instruction-set-computing
  • Communication apparatus 310 may further include one or more other components not pertinent to the proposed scheme of the present disclosure (e.g., internal power supply, display device and/or user interface device) , and, thus, such component (s) of communication apparatus 310 are neither shown in FIG. 3 nor described below in the interest of simplicity and brevity.
  • other components e.g., internal power supply, display device and/or user interface device
  • Network apparatus 320 may be a part of a network apparatus, which may be a network node such as a satellite, a base station, a small cell, a router or a gateway.
  • network apparatus 320 may be implemented in an eNodeB in an LTE network, in a gNB in a 5G/NR, IoT, NB-IoT or IIoT network or in a satellite or base station in a 6G network.
  • network apparatus 320 may be implemented in the form of one or more IC chips such as, for example and without limitation, one or more single-core processors, one or more multi-core processors, or one or more RISC or CISC processors.
  • Network apparatus 320 may include at least some of those components shown in FIG.
  • Network apparatus 320 may further include one or more other components not pertinent to the proposed scheme of the present disclosure (e.g., internal power supply, display device and/or user interface device) , and, thus, such component (s) of network apparatus 320 are neither shown in FIG. 3 nor described below in the interest of simplicity and brevity.
  • components not pertinent to the proposed scheme of the present disclosure e.g., internal power supply, display device and/or user interface device
  • each of processor 312 and processor 322 may be implemented in the form of one or more single-core processors, one or more multi-core processors, or one or more CISC processors. That is, even though a singular term “a processor” is used herein to refer to processor 312 and processor 322, each of processor 312 and processor 322 may include multiple processors in some implementations and a single processor in other implementations in accordance with the present disclosure.
  • each of processor 312 and processor 322 may be implemented in the form of hardware (and, optionally, firmware) with electronic components including, for example and without limitation, one or more transistors, one or more diodes, one or more capacitors, one or more resistors, one or more inductors, one or more memristors and/or one or more varactors that are configured and arranged to achieve specific purposes in accordance with the present disclosure.
  • each of processor 312 and processor 322 is a special-purpose machine specifically designed, arranged and configured to perform specific tasks including autonomous CLI reporting in a device (e.g., as represented by communication apparatus 310) and a network (e.g., as represented by network apparatus 320) in accordance with various implementations of the present disclosure.
  • communication apparatus 310 may also include a transceiver 316 coupled to processor 312 and capable of wirelessly transmitting and receiving data.
  • communication apparatus 310 may further include a memory 314 coupled to processor 312 and capable of being accessed by processor 312 and storing data therein.
  • network apparatus 320 may also include a transceiver 326 coupled to processor 322 and capable of wirelessly transmitting and receiving data.
  • network apparatus 320 may further include a memory 324 coupled to processor 322 and capable of being accessed by processor 322 and storing data therein. Accordingly, communication apparatus 310 and network apparatus 320 may wirelessly communicate with each other via transceiver 316 and transceiver 326, respectively.
  • each of communication apparatus 310 and network apparatus 320 is provided in the context of a mobile communication environment in which communication apparatus 310 is implemented in or as a communication apparatus or a UE and network apparatus 320 is implemented in or as a network node of a communication network.
  • FIG. 4 illustrates an example process 400 in accordance with an implementation of the present disclosure.
  • Process 400 may be an example implementation of above scenarios/schemes, whether partially or completely, with respect to autonomous CLI reporting of the present disclosure.
  • Process 400 may represent an aspect of implementation of features of communication apparatus 310.
  • Process 400 may include one or more operations, actions, or functions as illustrated by one or more of blocks 410 to 420. Although illustrated as discrete blocks, various blocks of process 400 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks of process 400 may be executed in the order shown in FIG. 4 or, alternatively, in a different order.
  • Process 400 may be implemented by communication apparatus 310 or any suitable UE or machine type devices. Solely for illustrative purposes and without limitation, process 400 is described below in the context of communication apparatus 310.
  • Process 400 may begin at block 410.
  • process 400 may involve processor 312 of communication apparatus 310 receiving, via transceiver 316, a report triggering threshold from a network node (e.g., network apparatus 320) .
  • the report triggering threshold is defined based on a DL channel quality on one or more partitioned symbols.
  • Process 400 may proceed from block 410 to block 420.
  • process 400 may involve processor 312 of communication apparatus 310 determining whether to transmit a CLI report based on an interference experienced during a DL reception on the one or more partitioned symbols and the report triggering threshold.
  • the DL channel quality is associated with a channel estimation error on the one or more partitioned symbols.
  • the DL reception may include a PDSCH DMRS reception.
  • Process 400 may further involve processor 312 transmitting, via transceiver 316, the CLI report in an event that the channel estimation error experienced during the PDSCH DMRS reception on the one or more partitioned symbols is determined to be greater than the report triggering threshold.
  • the DL reception may include a PDCCH DMRS reception.
  • Process 400 may further involve processor 312 transmitting, via transceiver 316, the CLI report in an event that the channel estimation error experienced during the PDCCH DMRS reception on the one or more partitioned symbols is determined to be greater than the report triggering threshold.
  • the DL channel quality is associated with an error rate on the one or more partitioned symbols.
  • the DL reception comprises a PDSCH reception.
  • Process 400 may involve processor 312 transmitting, via transceiver 316, the CLI report in an event that the error rate experienced during the PDSCH reception on the one or more partitioned symbols is determined to be greater than the report triggering threshold.
  • the CLI report is transmitted via a MAC-CE through a UL-SCH.
  • process 400 may also involve processor 312 receiving a configuration associated with a timer via transceiver 316.
  • Process 400 may further involve processor 312 starting the timer in an event that the interference experienced during the DL reception on the one or more partitioned symbols is determined to be greater than the report triggering threshold. Specifically, whether to transmit the CLI report is further determined based on the timer.
  • process 400 may also involve processor 312 determining whether the interference experienced during the DL reception on the one or more partitioned symbols is greater than the report triggering threshold while the timer is running.
  • process 400 may also involve processor 312 stopping the timer in an event that the interference experienced during the DL reception on the one or more partitioned symbols is determined to be not greater than the report triggering threshold. Further, process 400 may involve processor 312 not transmitting the CLI report.
  • process 400 may also involve processor 312 transmitting, via transceiver 316, the CLI report in an event that the interference experienced during the DL reception on the one or more partitioned symbols is determined to be greater than the report triggering threshold while the timer runs out.
  • the CLI report is transmitted via an RRC signaling.
  • the CLI report is transmitted inside a UL-DCCH-message class.
  • the one or more partitioned symbols comprise an SBFD symbol.
  • FIG. 5 illustrates another example process 500 in accordance with an implementation of the present disclosure.
  • Process 500 may be an example implementation of above scenarios/schemes, whether partially or completely, with respect to autonomous CLI reporting in mobile communications.
  • Process 500 may represent an aspect of implementation of features of network apparatus 320 or any suitable network node.
  • Process 500 may include one or more operations, actions, or functions as illustrated by one or more of blocks 510 to 520. Although illustrated as discrete blocks, various blocks of process 500 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks of process 500 may be executed in the order shown in FIG. 5 or, alternatively, in a different order.
  • Process 500 may begin at block 510.
  • process 500 may involve processor 322 of network apparatus 320 transmitting, via transceiver 326, a report triggering threshold defined based on a DL channel quality on one or more partitioned symbols to a UE (e.g., communication apparatus 310) .
  • Process 500 may proceed from block 510 to block 520.
  • process 500 may involve processor 322 receiving, via transceiver 326, a CLI report based on the report triggering threshold from the UE.
  • the report triggering threshold is defined based on a channel estimation error experienced during a PDSCH DMRS reception on the one or more partitioned symbols.
  • the report triggering threshold is defined based on a channel estimation error experienced during a PDCCH DMRS reception on the one or more partitioned symbols.
  • the report triggering threshold is defined based on an error rate experienced during a PDSCH reception on the one or more partitioned symbols.
  • the CLI report is transmitted via a MAC-CE through a UL-SCH.
  • process 500 may further involve processor 322 of network apparatus 320 transmitting, via transceiver 326, a configuration associated with a timer to the UE.
  • the CLI report from the UE is further based on the timer.
  • the CLI report is transmitted via an RRC signaling. Additional Notes
  • any two components so associated can also be viewed as being “operably connected” , or “operably coupled” , to each other to achieve the desired functionality, and any two components capable of being so associated can also be viewed as being “operably couplable” , to each other to achieve the desired functionality.
  • operably couplable include but are not limited to physically mateable and/or physically interacting components and/or wirelessly interactable and/or wirelessly interacting components and/or logically interacting and/or logically interactable components.

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

Abstract

L'invention concerne diverses solutions permettant la notification autonome d'interférence de liaison croisée (CLI) concernant un équipement utilisateur (UE) et un appareil de réseau dans des communications mobiles. L'UE peut recevoir un seuil de déclenchement de rapport défini sur la base d'une qualité de canal de liaison descendante (DL) sur un ou plusieurs symboles partitionnés. L'UE peut déterminer s'il faut transmettre un rapport CLI sur la base d'une interférence subie pendant une réception DL sur le(s) symbole(s) partitionné(s) et le seuil de déclenchement de rapport. Avec le seuil de déclenchement de rapport configuré par le nœud de réseau, l'UE peut détecter et rapporter de manière proactive un blocage important provoqué par une transmission en liaison montante (UL) provenant d'UE proches sans ressources de mesure de CLI dédiées, ce qui permet de réduire le délai de notification et d'améliorer l'efficacité des ressources.
PCT/CN2025/093352 2024-05-10 2025-05-08 Procédés et appareil pour la notification autonome d'interférence de liaison croisée dans des communications mobiles Pending WO2025232817A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202463645197P 2024-05-10 2024-05-10
US63/645197 2024-05-10

Publications (1)

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WO2025232817A1 true WO2025232817A1 (fr) 2025-11-13

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PCT/CN2025/093352 Pending WO2025232817A1 (fr) 2024-05-10 2025-05-08 Procédés et appareil pour la notification autonome d'interférence de liaison croisée dans des communications mobiles

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