WO2024017237A1 - Procédé exécuté par un équipement utilisateur, et équipement utilisateur - Google Patents

Procédé exécuté par un équipement utilisateur, et équipement utilisateur Download PDF

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Publication number
WO2024017237A1
WO2024017237A1 PCT/CN2023/107880 CN2023107880W WO2024017237A1 WO 2024017237 A1 WO2024017237 A1 WO 2024017237A1 CN 2023107880 W CN2023107880 W CN 2023107880W WO 2024017237 A1 WO2024017237 A1 WO 2024017237A1
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Prior art keywords
information
scg
configuration
cpc
failure
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PCT/CN2023/107880
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English (en)
Chinese (zh)
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常宁娟
刘仁茂
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夏普株式会社
常宁娟
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Publication of WO2024017237A1 publication Critical patent/WO2024017237A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18—Network planning tools
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • the present invention relates to the field of wireless communication technology, and more specifically, the present invention relates to a conditional reconfiguration related information reporting method for primary and secondary cells (Primary Secondary cell group Cell, PSCell) and corresponding user equipment.
  • Primary and secondary cells Primary Secondary cell group Cell, PSCell
  • PSCell Primary Secondary cell group Cell
  • the purpose of this disclosure is to propose a solution to the problem of how to implement failure information reporting in the CPAC scenario in the next generation wireless access (NR Radio Access, NR) system. More specifically, the present disclosure proposes a solution to the problem of how a user equipment (User Equipment, UE) configured with CPAC reports failure information to the network side when a secondary cell group SCG failure occurs in an NR system.
  • a user equipment User Equipment, UE
  • a method performed by user equipment UE including: the UE occurs a secondary cell group SCG failure; and the UE initiates an SCG failure information process and sends an SCG failure containing time information to the network side.
  • Information message wherein the time information indicates the detection of SCG failure and the receipt of the latest CPC configuration The time elapsed between the CPC configuration and the conditional primary and secondary cell PSCell changing configuration.
  • the time information may include first time information or second time information, and the first time information represents the detection of SCG failure and the reception of the latest The time elapsed between CPC configurations initiated by the primary base station MN, and the second time information represents the time elapsed between monitoring the SCG failure and receiving the latest CPC configuration initiated by the secondary base station SN.
  • the SCG failure information message may also include indication information, the indication information being used to indicate whether the CPC configuration is initiated by the MN or the SN. .
  • the UE determines whether the execution condition in the CPC configuration is associated with the measurement configuration measConfig of the MN or the measurement configuration measConfig of the SN. Indicates whether the CPC configuration is initiated by the MN or the SN.
  • the SCG failure may be an SCG wireless link failure.
  • the UE when the UE is configured with a CPC when an SCG failure is detected, the UE sets and contains the CPC in the SCG failure information message. the first time information or the second time information.
  • the UE when the UE is configured with a CPC when an SCG failure is detected, the UE sets and contains the CPC in the SCG failure information message. the time information and the indication information.
  • the UE determines that the SCG failure reason for initiating the SCG failure information process is related to link quality or mobility, the UE fails the SCG CPC related information is set or included in the information message, and the CPC related information includes the time information and the indication information.
  • a user equipment UE including: a processor; and a memory storing instructions; wherein the instructions, when executed by the processor, are executed by the user equipment according to the context. The method executed by the UE.
  • SCG failure information reporting can be effectively implemented in the NR system. More specifically, when the UE is configured with CPAC, more detailed failure information can be provided to the network side so that the network side can optimize mobility in the CPAC scenario. Be more accurate. In addition, through some embodiments of the present disclosure, the UE can determine whether to record and send associated failure information to the network side according to the type of SCG failure, thereby reducing signaling overhead and UE energy consumption caused by unnecessary information reporting.
  • FIG. 1 is a schematic flow chart showing the SCG failure information reporting method (ie, the method executed by the UE) in Embodiment 1 of the present disclosure.
  • FIG. 2 is a schematic flow chart showing the SCG failure information reporting method (ie, the method executed by the UE) in Embodiment 2 of the present disclosure.
  • FIG. 3 is a block diagram showing user equipment UE according to the present disclosure.
  • LTE Long Term Evolution
  • NR New Radio Access
  • Evolved Universal Terrestrial Radio Access Evolved Universal Terrestrial Radio Access Network E-UTRAN.
  • handover refers to the change of the primary cell PCell.
  • the handover command is used to trigger the UE to perform handover.
  • it is an RRC reconfiguration message containing a synchronization reconfiguration (Reconfigurationwithsync) information element for the primary cell group MCG. Therefore, handover can also be called synchronous reconfiguration of MCG.
  • PSCell change refers to the change of the primary and secondary cells.
  • the source PSCell and the target PSCell can be the same cell or different cells.
  • Source PSCell can also be called source auxiliary base station, source auxiliary cell group
  • the target PSCell can also be called the target secondary base station, target beam, target transmission point, target secondary cell group SCG or target neighborhood.
  • the PSCell change command is used to trigger the UE to perform PSCell change.
  • it is an RRC reconfiguration message containing the synchronous reconfiguration (Reconfigurationwithsync) information element for the SCG. Therefore, PSCell change may also be called synchronous reconfiguration of SCG or synchronous reconfiguration of PSCell.
  • the synchronization reconfiguration information element may include the configuration information of the target cell, such as the target cell identity, the target cell frequency, the public configuration of the target cell such as system information, the random access configuration used by the UE to access the target cell, the UE Security parameter configuration in the target cell, radio bearer configuration of the UE in the target cell, configuration of timer T304, etc.
  • the cell change command is equivalent to the RRC message containing the cell change command, which refers to the RRC message or RRC message that triggers the UE to perform cell change. configuration in the information.
  • Cell change configuration refers to all or part of the configuration in the cell change command. Cancel, Release, Delete, Empty and Clear can be replaced. Execution, use and application are interchangeable. Configuration and reconfiguration can be replaced. Monitor and detect are interchangeable. Unless otherwise specified, cell change refers to PCell switching or PSCell change.
  • the RRC reconfiguration message used for the cell change command carries the RRC configuration from the target base station, including but not limited to the following RRC configuration (for details, please refer to Chapter 6.2.2 in 3GPP Technical Standard Protocol 38.331):
  • -Measurement configuration used to configure intra-frequency, inter-frequency and inter-radio access technology measurements performed by the UE. Such as measurement object configuration, measurement reporting configuration, measurement gap configuration, etc.
  • the -Cell group configuration (cellGroupConfig information element), used to configure the secondary cell group.
  • CellGroupConfig information element used to configure the secondary cell group.
  • RLC Radio Link Control
  • MAC Medium Access Control
  • the SpCell configuration includes cell index number, cell change information (reconfigurationWithSync information element), wireless link failure related timer and constant configuration, wireless link detection (Radio Link Monitoring, RLM) configuration, special cell-specific configuration, etc.
  • the reconfigurationwithsync information element includes cell change related information such as serving cell configuration public information, UE's cell radio network temporary identifier C-RNTI in the target cell, cell change process monitoring timer T304 configuration, and random access process to the target cell. Access dedicated configurations, etc.
  • RadiobearerConfig information element used to configure the service data application protocol layer (Service Data) of the data radio bearer (Data Radio Bearer, DRB) and/or the signaling radio bearer (Signaling Radio Bearer, SRB) Application Protocol (SDAP) and Packet Data Convergence Protocol (PDCP).
  • Service Data Service Data
  • DRB Data Radio Bearer
  • SRB Signaling Radio Bearer
  • SDAP Application Protocol
  • PDCP Packet Data Convergence Protocol
  • the UE establishes links with two base stations at the same time, that is, the radio resources used by the UE are provided by different schedulers located at the two base stations.
  • the wireless access between the two base stations and the UE can be of the same or different standards (Radio Access Technology, RAT).
  • RAT Radio Access Technology
  • both are NR, or one is NR and the other is LTE, also called evolved universal terrestrial wireless access (RAT).
  • Evolved Universal Terrestrial Radio Access, E-UTRA Evolved Universal Terrestrial Radio Access
  • the master base station Master Node, MN
  • MgNB MgNB
  • MeNB serving cell group under the master base station
  • the secondary base station Secondary Node, SN
  • SgNB SgNB
  • SeNB serving cell group under the secondary base station
  • SCG Secondary Cell Group
  • the primary base station is LTE and the secondary base station is NR
  • the DC is called EN-DC (using 4G core network) or NGEN-DC (using 5G core network);
  • the primary base station and secondary base station are both NR the DC is called NR-DC .
  • MCG includes a primary cell (Primary Cell, PCell) and optionally one or more secondary cells (Secondary Cell, SCell).
  • PCell works on the main frequency, and the UE performs the initial connection establishment process or connection re-establishment process through the main frequency.
  • the SCG contains a primary SCG Cell (PSCell) and optionally one or more SCells.
  • PSCell refers to the SCG cell that the UE performs random access when performing the synchronization reconfiguration process of the SCG.
  • PCell and PSCell are also collectively referred to as special cells SpCell.
  • DC When DC is configured, the DRB and SRB of the UE are supported to be configured as split bearers.
  • SRB1 and SRB2 are transmitted through the MCG path.
  • SRB3 can also be established for the SN to transmit the configuration associated with the SCG between the SN and the UE. The establishment and release of SRB3 are determined by SN.
  • the change of PSCell can be initiated by the MN or the SN.
  • the MN or SN can initiate changes to the PSCell based on factors such as the measurement results of the source PSCell or neighboring cells reported by the UE or the load of the neighboring cells.
  • the cell change command for PSCell is included in the RRC reconfiguration message of SRB1 and sent to the UE.
  • the PSCell change command is an RRC reconfiguration message for the SCG.
  • the SN When sent to the UE through the MCG link, it is generally included in the mrdc-SecondaryCellGroupConfig information element or nr-SecondaryCellGroupConfig information element and nested in the RRC reconfiguration message of SRB1. If the change of PSCell does not require the participation of the MN, such as the intra-SN PSCell change scenario, the SN can independently generate the RRC reconfiguration message of the PSCell change command and send it to the UE through SRB3 of the SCG link.
  • the UE that receives the PSCell change command immediately applies the configuration of the cell change command to perform the PSCell change, including the random access process to the PSCell.
  • the UE detects the cell change process through a timer T304.
  • the UE starts the T304 timer; when the cell change process is completed (the random access process is successfully completed), the UE stops the timer T304; when T304 times out, The UE considers that the PSCell change failed or the synchronization reconfiguration failed.
  • conditional reconfiguration a relatively conservative measurement report threshold is set, so that the base station obtains the measurement results in advance, and prepares for cell change in advance based on the measurement results and the selected target base station, so that the base station can perform cell change under the real cell change execution conditions (relative to Before the conservative measurement report threshold) is met, a cell change command (conditional reconfiguration) containing candidate cells and execution conditions is issued to the UE in advance. After receiving the conditional reconfiguration, the UE will not immediately execute the cell change.
  • conditional reconfiguration a relatively conservative measurement report threshold is set, so that the base station obtains the measurement results in advance, and prepares for cell change in advance based on the measurement results and the selected target base station, so that the base station can perform cell change under the real cell change execution conditions (relative to Before the conservative measurement report threshold) is met, a cell change command (conditional reconfiguration) containing candidate cells and execution conditions is issued to the UE in advance. After receiving the conditional reconfiguration, the UE will not immediately execute the cell change.
  • conditional reconfiguration is Refers to the synchronous reconfiguration process that is executed only when one or more configured execution conditions are met.
  • Conditional reconfiguration can be applied to MCG or SCG.
  • conditional reconfiguration is a conditional reconfiguration of MCG/PCell, it is also called conditional handover (Condtional HandOver, CHO); and when conditional reconfiguration is a conditional reconfiguration of SCG/PSCell, it is called conditional handover (CHO).
  • conditional PSCell change Conditional PSCell Change, CPC
  • conditional PSCell Addition CPA
  • CPAC conditional PSCell Addition&Change
  • the UE After receiving the RRC reconfiguration message containing the conditional reconfiguration (ConditionalReconfiguration information element, which contains the conditional reconfiguration candidate cell list (condReconfigToAddModList information element)), the UE saves the configuration corresponding to the conditional reconfiguration candidate cell.
  • ConditionalReconfiguration information element which contains the conditional reconfiguration candidate cell list (condReconfigToAddModList information element)
  • the UE saves the configuration corresponding to the conditional reconfiguration candidate cell.
  • VarConditionalReconfig it contains multiple items. Each item is identified by a conditional reconfiguration identifier (condReconfigId), including the execution condition (condExecutionCond or condExecutionCondSCG) and the RRC configuration of the candidate cell (condRRCReconfig).
  • the cell identified by the cell identifier in the serving cell common configuration (servingCellConfigCommon information element) in the synchronous reconfiguration (reconfigurationWithSync information element) in the RRC configuration of the candidate cell corresponds to a conditional reconfiguration candidate cell.
  • the UE performs conditional reconfiguration evaluation on each conditional reconfiguration candidate cell according to the execution conditions.
  • the execution condition may contain one or two measurement identifiers (measID). Only when the measurement events corresponding to all the measurement identifiers contained in the execution condition (such as condEventA3 or CondEventA5 contained in the CondTriggerConfig information element) are satisfied, the UE considers that all The corresponding candidate cell is the trigger cell, and the conditional reconfiguration execution process is initiated.
  • the UE applies the saved RRC configuration (condRRCReconfig) corresponding to the selected triggering cell, and performs cell change operations, such as starting timer T304, downlink synchronization to the selected cell, and The selected cell initiates a random access process for uplink synchronization, and sends an RRC reconfiguration completion message to the selected cell (see Chapter 5.3.5.3 of the 3GPP protocol specification document TS38.331 for details, which will not be described here).
  • cell change operations such as starting timer T304, downlink synchronization to the selected cell
  • the selected cell initiates a random access process for uplink synchronization, and sends an RRC reconfiguration completion message to the selected cell (see Chapter 5.3.5.3 of the 3GPP protocol specification document TS38.331 for details, which will not be described here).
  • CPC can be initiated by MN or SN.
  • the execution condition condExecutionCond in the CPC condition reconfiguration initiated by the MN is determined by the MN and associated with the MN's measurement configuration (measConfig); the execution condition (condExecutionCond or condExecutionCondSCG) in the CPC condition reconfiguration initiated by the SN is determined by the SN and Measurement configuration (measConfig) associated with SN.
  • the UE considers that the execution condition (the measurement identifier measId in) is associated with the measurement configuration of the SCG (the measurement identifier measId); If the execution condition associated with the candidate cell is configured with the condExecutionCond information element and is configured through SRB3 or is configured through SRB 1 and is included in nr-SecondaryCellGroupConfig or included in the nr-SCG information element, the UE considers the execution condition (in The measurement identifier measId) is associated with the measurement configuration of the SCG (the measurement identifier measId); otherwise, in other circumstances, the UE considers that the execution condition (the measurement identifier measId) is associated with the measurement configuration of the MCG (the Measurement identifier measId).
  • conditional reconfiguration for SCG and CPC/CPAC can be interchanged.
  • the failure information reporting of MCG in the NR system is implemented through RLF-report.
  • the UE will generate and save a radio link failure report (RLF report) when MCG's radio link failure (Radio Link Failure, RLF) or handover failure (Handover Failure, HOF) occurs, and save the radio link failure information in UE variable VarRLF-Report.
  • RLF report radio link failure report
  • the UE only saves the RLF report of the latest connection failure (RLF and HOF are collectively referred to as connection failure).
  • connection failure After resuming the connection with the network side, the UE can inform the network side that there is an available radio link failure report on it through an RRC message (as indicated by the rlf-InfoAvailable information element).
  • the network side may request the UE to report its saved RLF report through an RRC message (such as the rlf-ReportReq information element in the UEInformationRequest message to indicate the request).
  • the UE will report the saved RLF report (rlf-Report information element in the UEInformationResponse message) to the network side in the response RRC message.
  • the RLF report obtained from the network side is used to Network optimization, such as network coverage and mobile robustness optimization.
  • the RLF report contains information related to link failure, including the measurement results of the source cell, target cell or neighbor cell when the link failure occurred, location information, the primary cell identification where the link failure occurred, and the type of link failure (RLF or HOF ), RLF reason, RRC re-establishing cell identity, etc.
  • the RLF report of R17 also enhances the CHO scenario, that is, for CHO-related link failures, the RLF report also contains CHO-specific information.
  • This information includes information indicating that the latest handover is a conditional handover (lastHO-type), CHO configuration (choconfig), CHO candidate cell list (choCandidateCellList), time information timeSinceCHO-Reconfig, etc.
  • timeSinceCHO-Reconfig when the connection failure type is HOF, the execution of the RRC reconfiguration message containing synchronous reconfiguration corresponding to the target PCell of the latest failure condition switch is set and the latest containing failure is received in the source PCell. The time elapsed between conditional reconfigurations of the CHO configuration of the target PCell associated with the CHO.
  • the connection failure type is RLF, set to the time elapsed between detection of RLF and receipt of the most recent conditional reconfiguration (within the source PCell).
  • SCG failure information reporting is implemented through the SCG failure information process.
  • the UE will initiate the SCG failure information process to report the failure of the SCG to the network side: the RLF and SCG of the SCG are monitored During deactivation, it is detected that PSCell beam failure, SCG synchronization reconfiguration failure, SCG configuration failure, and integrity check failure indication associated with SRB3 from the bottom layer are received.
  • the UE usually suspends SCG transmission, resets the SCG MAC entity, stops the running timer T304, and sends the SCGFailureInformation RRC message to the network side through the MCG link.
  • the MCG can send an RRC message containing the synchronous reconfiguration of the SCG to the UE, triggering the change of the PSCell and restoring the SCG link; or it can send an RRC message containing the release SCG link indication to the UE to release the SCG.
  • the network side can also be used for SCG mobility optimization based on the information in SCGFailureInformation.
  • the information in SCGFailureInformation in the R17 version includes: failure type, SCG-related measurements The measurement results corresponding to the configuration, the measurement results corresponding to the measurement configuration associated with the MCG, location information, the failed PSCell identifier failedPSCellId, the previous PSCell identifier previousPSCellId, and the RRC reconfiguration message used to indicate the synchronous reconfiguration of the latest SCG.
  • the version 17 NR system has enhanced SCG failure information reporting based on the SCGFailureInformation process for SCG mobile robustness optimization.
  • One of the research goals in the version 18 work plan is to optimize mobility performance in CPAC-based SCG mobility scenarios.
  • the network side can perform CPAC mobility parameters. Optimizations and adjustments to improve the mobile robustness of the CPAC mechanism.
  • the CHO-specific failure information standardized in R17 for MCG mobility optimization can be considered for reuse in CPAC’s mobile performance optimization mechanism.
  • some CHO information cannot be directly applied to CPAC scenarios, so how to implement failure information reporting in CPAC scenarios is a concern of this disclosure.
  • This embodiment provides a method for reporting SCG failure information implemented on the UE.
  • the UE includes a time information in the SCG failure information.
  • the time information distinguishes the MN and the SN, that is, it reports the CPC initiated by the MN and the SN initiated by the SN respectively. time information.
  • the network side can know whether the time information is associated with the CPC initiated by the MN or the CPC initiated by the SN, so that the corresponding network site (MN or SN) can perform execution based on this information. For network optimization, if the time information is too long, it will be judged that the timing of sending the CPC configuration to the UE in future CPC configurations can be appropriately delayed, etc. To reduce resource reservation for CPC on the network side.
  • FIG. 1 is a schematic flow chart showing the SCG failure information reporting method (ie, the method executed by the UE) in Embodiment 1 of the present disclosure.
  • the SCG failure information reporting method in Embodiment 1 of the present disclosure can Contains the following steps.
  • Step 101 SCG failure occurs in the UE.
  • Step 102 The UE initiates the SCGFailureInformation process (SCG failure information process) and sends an SCG failure information message containing time information to the network side.
  • SCG failure information message may be an SCGFailureInformation RRC message.
  • the time information may include first time information or second time information.
  • the first time information is set as the time elapsed between detecting the SCG failure and receiving the latest CPC configuration initiated by the MN.
  • the second time information is set as the time elapsed between detecting the SCG failure and receiving the latest CPC configuration initiated by the SN.
  • the receiving the CPC configuration can also be expressed as receiving a message containing the conditionalReconfiguration information element of condRRCReconfig for the SCG.
  • the UE can determine whether the CPC configuration is initiated by the MN or the SN based on whether the execution condition in the CPC configuration is associated with the MN's measurement configuration measConfig or the SN's measurement configuration measConfig. If the execution condition in the CPC configuration corresponding to the candidate cell is associated with the measurement configuration of the MN, then the CPC configuration corresponding to the candidate cell is initiated by the MN; if the execution condition in the CPC configuration corresponding to the candidate cell is associated with the SN If the measurement configuration is configured, the CPC configuration corresponding to the candidate cell is initiated by the SN.
  • said SCG failure is SCG RLF.
  • the UE when SCG failure is detected, the UE is configured with CPC (that is, on the UE When there is a saved CPC configuration in VarConditionalReconfig), the UE sets and includes the first time information or the second time information in the SCGFailureInformation message.
  • the UE when the UE supports the mobile robustness optimization function or supports failure information reporting for CPC, the UE sets and includes the first time information or the second time information in the SCGFailureInformation message.
  • This embodiment provides a method for reporting SCG failure information implemented on the UE.
  • the UE includes time information in the SCG failure information and information indicating that the time information is associated with the CPC configuration initiated by the MN or SN.
  • the network side can know whether the time information is associated with the CPC initiated by the MN or the CPC initiated by the SN, so that the corresponding network site (MN or SN) can perform execution based on this information.
  • the time information is too long, it is determined that the timing of sending the CPC configuration to the UE in future CPC configurations can be appropriately delayed to reduce the network side's resource reservation for CPC.
  • FIG. 2 is a schematic flow chart showing the SCG failure information reporting method (ie, the method executed by the UE) in Embodiment 2 of the present disclosure.
  • the SCG failure information reporting method in Embodiment 2 of the present disclosure can Contains the following steps.
  • Step 201 SCG failure occurs in the UE.
  • Step 202 The UE initiates the SCGFailureInformation process (SCG failure information process) and sends the SCG failure information message including the third time information and the first indication information to the network side. Similar to Embodiment 1, the SCG failure information message may be an SCGFailureInformation RRC message.
  • the third time information is set as the time elapsed between detecting the SCG failure and receiving the latest CPC configuration.
  • the first indication information is set to indicate whether the CPC configuration is initiated by the MN or the SN.
  • the receiving the CPC configuration can also be expressed as receiving a message containing the conditionalReconfiguration information element of condRRCReconfig for the SCG.
  • the UE determines whether the CPC configuration is initiated by the MN or the SN, which is the same as in Embodiment 1, and will not be described again here.
  • the third time information is set to the execution of the RRC reconfiguration message containing the synchronization reconfiguration corresponding to the target PSCell of the most recent failed CPC and the receipt of the latest containing failure.
  • conditional reconfiguration conditionalReconfiguration
  • CPC configuration conRRCReconfig
  • the UE when the UE is configured with CPC when SCG failure is detected (that is, the CPC configuration is saved in VarConditionalReconfig on the UE), the UE sets and includes the third time information and the first indication information in the SCGFailureInformation message.
  • the UE when the UE supports the mobile robustness optimization function or supports failure information reporting for CPC, the UE sets and includes the third time information and the first indication information in the SCGFailureInformation message.
  • This embodiment provides a method for reporting SCG failure information executed on the UE.
  • the UE Through the method described in this embodiment, the UE only reports the failure information to the network side through SCGFailureInformation when the SCG failure is due to link quality, thereby avoiding unnecessary information reporting and causing air interface signaling overhead and UE energy consumption.
  • the SCG failure information reporting method in Embodiment 3 of the present disclosure may include the following steps.
  • Step 301 The UE initiates the SCGFailureInformation process.
  • Step 302 The UE sends the SCGFailureInformation RRC message to the network side, including: the UE determines whether the SCG failure reason (failuretype) that initiates the SCGFailureInformation process is related to link quality or mobility. If so, the UE The SCGFailureInformation message sets or contains CPAC related information; if not, the UE does not set or include CPAC related information in the SCGFailureInformation message.
  • the failure type is related to link quality or mobility, which means that the failure type is set to one of the following: SCG timer T310 timeout, SCG timer T312 timeout, random access problem, RLC reaches the maximum number of retransmissions , SCG synchronization reconfiguration failure, SCG continuous LBT failure, beam failure recovery failure, etc.
  • CPAC-related information refers to information specific to CPAC, such as CPAC configuration, etc., and also includes the first to third time information and the first indication information described in Embodiment 1 or Embodiment 2. This embodiment does not limit the specific content of CPAC related information.
  • This embodiment provides a method for reporting SCG failure information executed on the UE.
  • the UE Through the method described in this embodiment, the UE only reports the failure information to the network side through SCGFailureInformation when the SCG failure is due to link quality, thereby avoiding unnecessary information reporting and causing air interface signaling overhead and UE energy consumption.
  • Step 401 The UE initiates the SCGFailureInformation process.
  • Step 402 The UE sends the SCGFailureInformation RRC message to the network side, including: the UE determines whether the SCG failure reason for initiating the SCGFailureInformation process, that is, the failure type (failuretype), is related to link quality or mobility. If so, the UE sets or Contains one or more of the following: failed PSCell identifier failedPSCellId, previous PSCell identifier previousPSCellId, time elapsed since receiving the RRC reconfiguration message of the latest SCG synchronous reconfiguration timeSCGFailure, and the random access process performed.
  • the failure type failure type
  • the failure type is related to link quality or mobility, which means that the failure type is set to one of the following: SCG timer T310 timeout, SCG timer T312 timeout, random access problem, RLC reaches the maximum number of retransmissions , SCG synchronization reconfiguration failure, SCG continuous LBT failure, beam failure recovery failure, etc.
  • FIG. 3 is used to illustrate the user equipment of Embodiment 5 of the present disclosure that can execute the method performed by the user equipment described in detail above.
  • FIG. 3 is a block diagram showing user equipment UE according to the present invention.
  • the user equipment UE30 includes a processor 301 and a memory 302.
  • the processor 301 may include, for example, a microprocessor, a microcontroller, an embedded processor, or the like.
  • the memory 302 may include, for example, volatile memory (such as random access memory RAM), hard disk drive (HDD), non-volatile memory (such as flash memory), or other memory.
  • Memory 302 stores program instructions. When the instruction is executed by the processor 301, the above-mentioned method executed by the user equipment described in detail in the present invention can be executed.
  • the method and related equipment of the present invention have been described above in conjunction with preferred embodiments. Those skilled in the art will understand that the methods shown above are only exemplary. The method of the present invention is not limited to the steps and sequence shown above.
  • the base station and user equipment shown above may include more modules, for example, may also include modules that may be developed or developed in the future and may be used for the base station, MME, or UE, and so on.
  • the various identifications shown above are only illustrative and not restrictive, and the present invention is not limited to the specific information elements as examples of these identifications. Many changes and modifications may be made by those skilled in the art in light of the teachings of the illustrated embodiments.
  • the program running on the device according to the present invention may be a program that causes the computer to implement the functions of the embodiments of the present invention by controlling a central processing unit (CPU).
  • the program or information processed by the program may be temporarily stored in volatile memory (such as random access memory RAM), hard disk drive (HDD), non-volatile memory (such as flash memory), or other memory systems.
  • Programs for realizing the functions of each embodiment of the present invention can be recorded on a computer-readable recording medium.
  • Corresponding functions can be realized by causing the computer system to read programs recorded on the recording medium and execute these programs.
  • the so-called “computer system” here may be a computer system embedded in the device, which may include an operating system or hardware (such as peripheral devices).
  • "Computer-readable recording medium” may be a semiconductor recording medium, an optical recording medium, a magnetic recording medium media, a recording medium for short-term dynamic storage programs, or any other recording medium readable by a computer.
  • circuits eg, single-chip or multi-chip integrated circuits.
  • Circuitry designed to perform the functions described in this specification may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination of the above.
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • FPGA field-programmable gate array
  • a general-purpose processor can be a microprocessor or any existing processor, controller, microcontroller, or state machine.
  • the above circuit may be a digital circuit or an analog circuit.
  • the present invention is not limited to the above-described embodiment. Although various examples of the embodiments have been described, the invention is not limited thereto.
  • Fixed or non-mobile electronic equipment installed indoors or outdoors can be used as terminal equipment or communication equipment, such as AV equipment, kitchen equipment, cleaning equipment, air conditioners, office equipment, vending machines, and other household appliances.

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

Abstract

Sont divulgués dans la présente invention un procédé exécuté par un équipement utilisateur, et un équipement utilisateur. Le procédé exécuté par un équipement utilisateur (UE) comprend les étapes suivantes : une défaillance de groupe de cellules secondaires (SCG) se produit dans un UE ; et l'UE initie un processus de signalement de défaillance de SCG, et envoie à un côté réseau un message de signalement de défaillance de SCG qui contient des informations temporelles, dans lequel les informations temporelles représentent le temps écoulé entre la détection de la défaillance de SCG et la dernière configuration de CPC reçue, et la configuration CPC est une configuration de changement de cellule secondaire primaire conditionnelle (PSCell).
PCT/CN2023/107880 2022-07-19 2023-07-18 Procédé exécuté par un équipement utilisateur, et équipement utilisateur WO2024017237A1 (fr)

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CN202210855876.9 2022-07-19

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021258307A1 (fr) * 2020-06-23 2021-12-30 Nec Corporation Procédé, dispositif et support de stockage informatique de communication
CN114268977A (zh) * 2020-09-16 2022-04-01 夏普株式会社 无线链路失败报告方法以及用户设备

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021258307A1 (fr) * 2020-06-23 2021-12-30 Nec Corporation Procédé, dispositif et support de stockage informatique de communication
CN114268977A (zh) * 2020-09-16 2022-04-01 夏普株式会社 无线链路失败报告方法以及用户设备

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CMCC: "Further consideration on SON Enhancement for CHO", 3GPP DRAFT; R2-2101639, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. electronic; 20210125 - 20210205, 15 January 2021 (2021-01-15), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051974509 *
LIANHAI WU, LENOVO: "SON enhancements for CPAC", 3GPP DRAFT; R2-2212035; TYPE DISCUSSION, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. 3GPP RAN 2, no. Toulouse, FR; 20221114 - 20221118, 4 November 2022 (2022-11-04), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP052216124 *

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