WO2023280046A1 - Procédé d'exécution de changement de cellule et équipement d'utilisateur - Google Patents

Procédé d'exécution de changement de cellule et équipement d'utilisateur Download PDF

Info

Publication number
WO2023280046A1
WO2023280046A1 PCT/CN2022/102835 CN2022102835W WO2023280046A1 WO 2023280046 A1 WO2023280046 A1 WO 2023280046A1 CN 2022102835 W CN2022102835 W CN 2022102835W WO 2023280046 A1 WO2023280046 A1 WO 2023280046A1
Authority
WO
WIPO (PCT)
Prior art keywords
scg
cpc
cho
cell
pscell
Prior art date
Application number
PCT/CN2022/102835
Other languages
English (en)
Chinese (zh)
Inventor
常宁娟
刘仁茂
Original Assignee
夏普株式会社
常宁娟
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 夏普株式会社, 常宁娟 filed Critical 夏普株式会社
Publication of WO2023280046A1 publication Critical patent/WO2023280046A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H04W36/0094—Definition of hand-off measurement parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point

Definitions

  • the present disclosure relates to the field of wireless communication technologies, and more specifically, the present disclosure relates to a method for executing a condition-based cell change procedure and a corresponding user equipment.
  • the 3GPP RAN working group is currently conducting a research project on version 17 (see 3GPP document RP-193249 (New WID on further enhancements on Multi-Radio Dual-Connectivity)).
  • One of the research purposes of this project is to realize the condition-based addition and change process of Primary Secondary Cell Group Cell (PSCell) in the dual connectivity (Dual Connectivity, DC) scenario. More precisely, a condition-based PSCell change process in the PSCell change scenario between secondary base stations (Inter-Secondary Nodes) is implemented.
  • the present disclosure proposes a solution to the problem of how to implement condition-based addition or modification of PSCells in an NR system.
  • the purpose of the embodiments of the present disclosure is to provide a solution to the problem of how to implement condition-based addition or modification of a PSCell in an NR system. More specifically, the present disclosure is aimed at the execution of the CPAC and CHO procedures when the UE is simultaneously configured with Conditional HandOver (CHO) and condition-based PSCell Addition and Change (CPAC) in the NR system The process proposes a solution.
  • Embodiments of the present disclosure provide a method for executing CPAC and CHO procedures executed in user equipment and corresponding user equipment.
  • a cell change execution method including: the conditional handover CHO execution process on the user equipment UE is triggered; the UE judges whether there is an ongoing CPC process; if there is an ongoing CPC process , the UE stops the ongoing CPC process, if there is no ongoing CPC process, the UE continues to perform the CHO process, wherein the CPC process is used for conditional reconfiguration of the secondary cell group SCG process.
  • the UE may perform at least one of the following operations: Operation 1: Stop using the SCG/primary-secondary cell PSCell Operation 2: reset the medium access control MAC of the SCG; operation 3: release the dedicated random access resource provided in the rach-ConfigDedicated configuration for the SCG; operation 4: release the user stored in VarConditionalReconfig SCG-based conditional reconfiguration; and operation 5: fall back to the SCG configuration used at the source SeNB SN/SCG.
  • Operation 1 Stop using the SCG/primary-secondary cell PSCell
  • Operation 2 reset the medium access control MAC of the SCG
  • operation 3 release the dedicated random access resource provided in the rach-ConfigDedicated configuration for the SCG
  • operation 4 release the user stored in VarConditionalReconfig SCG-based conditional reconfiguration
  • operation 5 fall back to the SCG configuration used at the source SeNB SN/SCG.
  • the UE may continue to execute the CHO process after the UE stops the ongoing CPC process.
  • the ongoing CPC process means that the T304 timer for SCG/PSCell is running, and the execution process of RRC reconfiguration is due to the conditional reconfiguration of SCG/PSCell Initiated
  • the no ongoing CPC process means that the T304 timer for the SCG/PSCell is not running, or the execution process of the RRC reconfiguration is not initiated due to the conditional reconfiguration of the SCG/PSCell.
  • a cell change execution method including: the conditional handover CHO process on the user equipment UE is triggered; the UE judges whether there is an ongoing CPC process; if there is an ongoing CPC process, The UE then continues to execute the CPC process, and then executes the CHO execution process after the CPC process is completed; and when the RRC reconfiguration complete message is generated during the CHO execution process or before the RRC reconfiguration complete message is sent,
  • the configuration complete message includes an indication, and the indication is used to inform the CHO target cell that the UE has just gone through the CPC process before performing the CHO process, wherein the CPC process is a conditional reconfiguration process for the secondary cell group SCG.
  • the ongoing CPC process means that the T304 timer for SCG/PSCell is running, and the execution process of RRC reconfiguration is due to the conditional reconfiguration of SCG/PSCell Initiated.
  • the UE may suspend SCG transmission after completing the CPC process.
  • the UE may apply the SCG configuration and resume SCG transmission after receiving the first RRC reconfiguration message including the SCG configuration from the CHO target cell.
  • a user equipment including: a processor; and a memory storing instructions; wherein, when the instructions are executed by the processor, the cell change execution method according to the context is executed.
  • FIG. 1 is a schematic diagram showing a general handover process.
  • FIG. 2 is a flowchart showing a cell change execution method in Embodiment 1 of the present disclosure.
  • FIG. 3 is a block diagram illustrating a user equipment UE involved in the present disclosure.
  • LTE Long Term Evolution
  • NR New Radio Access
  • E-UTRA Evolved Universal Terrestrial Radio Access
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • the cell change involved in the present disclosure includes handover and PSCell change.
  • the handover refers to the change of the primary cell (Primary Cell, PCell), including the change of the primary cell between cells and the change of the primary cell within the cell, that is, the primary cell of the UE is changed from the source primary cell to the target primary cell, where the source primary cell
  • the cell and the target primary cell may be the same cell or different cells.
  • the secret key or security algorithm used for access layer security may also be updated or not updated accordingly.
  • the source primary cell refers to the cell serving the UE connected before the handover process is initiated, that is, the cell that sends a radio resource control (Radio Resource Control, RRC) message including a handover command to the UE.
  • Radio Resource Control Radio Resource Control
  • the target primary cell refers to the cell that the UE is connected to and serves the UE after the handover process is successfully completed, the cell indicated by the target cell identifier contained in the handover command, or the cell that performs downlink synchronization and random access during the handover process .
  • the PSCell change refers to the change of the PSCell, which may be a cell change within a secondary base station SN, or a cell change across SNs.
  • the PSCell before the cell change is called the source PSCell, and the PSCell after the cell change is called the target PSCell.
  • a cell may also be understood as a base station, or called a beam (beam), a transmission point (Transmission point, TRP), or a cell group (Cell Group, CG).
  • the source primary cell can be called source base station, source beam, source TRP, and source primary cell group;
  • the target primary cell can also be called target base station, or target beam, target transmission point, and target primary cell group;
  • the source PSCell can be called The source SeNB or the source SeNB;
  • the target PSCell may be called the target SeNB or the target SeNB.
  • the handover command or PSCell change command described in the present disclosure is an RRC reconfiguration message including a synchronous reconfiguration (Reconfigurationwithsync) information element in the NR system.
  • the RRC reconfiguration message containing the synchronization reconfiguration (Reconfigurationwithsync) information element used for the primary cell group MCG is used for the handover of the primary cell PCell, and includes the synchronization reconfiguration (Reconfigurationwithsync) information in the configuration of the primary secondary cell group SCG Elements are used to add or change PSCells. Therefore, handover can also be called synchronous reconfiguration of MCG, and addition or change of PSCell can also be called synchronous reconfiguration of SCG.
  • the RRC reconfiguration message in this disclosure is equivalent to the RRC connection reconfiguration message; similarly, the response message RRC reconfiguration complete message is identical to the RRC connection reconfiguration complete message.
  • the synchronous reconfiguration is equivalent to the RRC message including the synchronous reconfiguration, and refers to the RRC message or the configuration in the RRC message that triggers the handover of the UE. Cancel, Release, Delete, Empty and Clear etc. can be substituted. Execution, use, and application are interchangeable. Configuration and reconfiguration can be replaced. Monitor and detect are interchangeable.
  • PSCell changes include both PSCell changes and PSCell additions.
  • the RRC reconfiguration message used for the handover command carries the RRC configuration from the target base station, including but not limited to the following RRC configuration (for details, please refer to Section 6.2.2 of the 3GPP technical standard protocol 38.331):
  • Measurement configuration used to configure intra-frequency, inter-frequency and inter-RAT measurements performed by the UE.
  • cellGroupConfig information element used to configure a primary cell group or a secondary cell group.
  • Radio Link Control Radio Link Control, RLC
  • RLC Radio Link Control
  • MAC Medium Access Control
  • MAC-cellgroupconfig information element physical layer configuration
  • secondary cell addition/modification/release configuration special cell (Special cell, SpCell) configuration, etc.
  • the SpCell configuration includes cell index number, handover information (reconfigurationWithSync information element), radio link failure related timer and constant configuration, radio link monitoring (Radio Link Monitoring, RLM) configuration, special cell dedicated configuration, etc.
  • the reconfigurationwithsync information element is similar to the mobile control information in the LTE system, including handover related information to achieve mobility, which includes serving cell configuration public information, UE's cell radio network temporary identifier C-RNTI in the target cell, and handover process monitoring timer T304 configuration, random access dedicated configuration for the random access process to the target cell, etc.
  • Radio bearerConfig information element used to configure the service data application protocol layer (Service Data Application Protocol, SDAP) of the data radio bearer (Data Radio Bearer, DRB) and/or signaling radio bearer (Signaling Radio Bearer, SRB) ) and Packet Data Convergence Protocol (PDCP).
  • SDAP Service Data Application Protocol
  • DRB Data Radio Bearer
  • SRB Signaling Radio Bearer
  • 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 in the two base stations.
  • the wireless access between the two base stations and the UE can be the same or different standards (Radio Access Technology, RAT), such as NR, or one is NR, and the other is LTE, also known as the evolved universal terrestrial radio access ( Evolved Universal Terrestrial Radio Access, E-UTRA).
  • RAT Radio Access Technology
  • NR Radio Access Technology
  • LTE also known as the evolved universal terrestrial radio access
  • Evolved Universal Terrestrial Radio Access, E-UTRA evolved Universal Terrestrial Radio Access
  • the 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 the connection re-establishment process through the main frequency.
  • the SCG includes a PSCell and optionally one or more SCells.
  • the PSCell refers to an SCG cell to which the UE performs random access when performing a synchronous reconfiguration procedure or an SCG addition procedure.
  • the PCell and the PSCell are also collectively referred to as the special cell SpCell.
  • FIG. 1 is a schematic diagram showing a general handover process.
  • a general handover process includes the following phases: Phase 1: Measurement phase. Based on the configured measurement configuration, the UE measures the radio link corresponding to the serving cell or the neighboring cell, and when the configured measurement reporting conditions are met, the UE sends a measurement report to the base station.
  • Phase 2 Handover preparation phase.
  • the base station determines to trigger handover for the UE based on the received measurement report and other factors such as base station load, and the source base station and the target base station obtain the handover command configured by the target base station through the handover preparation process.
  • Phase 3 Switch execution phase.
  • the source base station sends the handover command to the UE, and the UE that receives the handover command immediately applies the configuration of the handover command to perform handover.
  • the UE detects the handover process through a timer T304. When the handover process is initiated, the UE starts the T304 timer; when the handover process is completed, the UE stops the timer T304; when the T304 times out, the UE considers the handover failure.
  • the above handover process is also applicable to the PSCell change process.
  • conditional handover also called conditional reconfiguration.
  • CHO conditional handover
  • a relatively conservative measurement report threshold is set, so that the base station obtains the measurement results in advance, and performs handover preparations in advance according to the measurement results and the selected target base station, so that the base station can perform handover under real handover conditions (relative to the conservative Before the measurement report threshold) is met, the handover command including the handover candidate cell and the handover execution condition is sent to the UE in advance, which carries the handover execution condition of the UE.
  • conditional switching refers to a switching process that is executed only when one or more configured switching execution conditions are met. Because the switching command is included in the RRC reconfiguration message, conditional switching is also called conditional reconfiguration (conditional reconfiguration).
  • the PSCell change process is triggered by the UE through the RRC reconfiguration message containing the synchronous reconfiguration information element for the SCG.
  • the PSCell change process can be initiated by the MN or by the SN.
  • SRB Signaling Radio Bearer
  • the SN can initiate the PSCell change process autonomously without the participation of the MN.
  • the SN sends the PSCell change command for SCG to the UE on SRB3.
  • the PSCell change independently initiated by the SN of SRB3 is an Intra-SN, that is, a PSCell change within the same secondary base station.
  • the PSCell change command is sent to the UE on the SRB1, including intra-SN or inter-SN PSCell change.
  • the RRC reconfiguration message for the PSCell change command of the SN is included in the nr-SecondaryCellGroupConfig information element (when the E-UTRAN is the MN) or the mrdc-SecondaryCellGroup information element (when the NR is the MN) of the outer RRC message.
  • the outer message is generally an RRC (connection) reconfiguration message or a DLInformationTransferMRDC message.
  • the UE receiving the PSCell change command executes the PSCell change process, starts the timer T304 for monitoring the process, starts downlink synchronization to the target PSCell, and applies the configuration including the RRC reconfiguration message for SCG synchronous reconfiguration , and send an RRC reconfiguration complete message to the network side.
  • the RRC reconfiguration complete message may also be embedded in an outer RRC message, such as an RRC (connection) reconfiguration complete message or a ULInformationTransferMRDC message.
  • conditional reconfiguration is supported for adding or changing PSCells. Similar to conditional handover CHO, the UE is configured for SCG conditional reconfiguration (conditional reconfiguration) (also called CPAC configuration or CPC configuration) refers to sending the conditional reconfiguration including PSCell candidate cells and execution conditions to the UE. After receiving the conditional reconfiguration, the UE does not immediately add or change the PSCell candidate cells contained in it, but saves the received conditional reconfiguration, and starts monitoring the source cell according to the execution conditions carried in it. Link quality or the link quality of the target candidate cell to evaluate whether the execution conditions are met.
  • conditional reconfiguration also called CPAC configuration or CPC configuration
  • the UE Only when it detects that the configured execution condition is satisfied, the UE starts to execute the SCG configuration in the saved conditional reconfiguration, and accesses the selected PSCell candidate cell. Like CHO, the UE can be configured with multiple PSCell candidate cells at the same time. If multiple candidate cells meet the execution conditions at the same time, the UE selects one of the candidate cells as the final target PSCell cell and synchronizes to this cell.
  • conditional reconfiguration can be applied to MCG or SCG.
  • conditional reconfiguration is the conditional reconfiguration of MCG/PCell, it is also called conditional handover CHO; and when the conditional reconfiguration is the conditional reconfiguration of SCG/PSCell, it is called conditional PSCell change CPC Or conditional PSCell to add or change CPAC.
  • 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 In the UE variable VarConditionalReconfig, which contains multiple items.
  • Each item is identified by a conditional reconfiguration identifier (condReconfigId), including the execution condition (condExecutionCond) and the RRC configuration (condRRCReconfig) of the candidate cell.
  • 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 condition.
  • the execution condition may contain one or two measurement identifiers (measID).
  • the UE Only when the measurement events corresponding to all the measurement identifiers included in the execution condition (such as condEventA3 or CondEventA5 contained in the CondTriggerConfig information element) are satisfied, the UE considers that the The corresponding candidate cell is the trigger cell, and initiates a conditional reconfiguration execution process.
  • the execution condition such as condEventA3 or CondEventA5 contained in the CondTriggerConfig information element
  • conditional reconfiguration the UE applies the saved RRC configuration (condRRCReconfig) corresponding to the cell to the selected trigger cell, and performs cell change operations, such as starting timer T304, downlink synchronization to the selected cell, and sending
  • cell change operations such as starting timer T304, downlink synchronization to the selected cell, and sending
  • the selected cell initiates a random access process for uplink synchronization, and sends an RRC reconfiguration completion message to the selected cell (see section 5.3.5.3 of 3GPP protocol specification document TS38.331 for details, which will not be described here).
  • the conditional reconfiguration used for SCG and CPC/CPAC can be replaced.
  • the UE needs to perform CHO and CPC conditional reconfiguration evaluation (conditional reconfiguration evaluation) at the same time. If the execution condition of the CPC is satisfied first, that is, when a triggering cell is determined according to the CPC conditional reconfiguration evaluation, the CHO conditional reconfiguration evaluation has not yet met the execution conditions of the candidate cell, considering that the mobility performance of the PCell is more important than the mobility performance of the PSCell, A reasonable way is to make the UE perform the CPC process to the selected trigger cell, and continue to perform CHO conditional reconfiguration evaluation during the process of performing the CPC.
  • This embodiment provides a method for changing a cell performed on a UE.
  • the UE stops the ongoing CPC execution process, and then executes the CHO execution process to avoid executing two CPC execution processes at the same time.
  • the RRC process is used to avoid the problem of configuration confusion on the UE caused by two RRC processes being executed on the UE at the same time.
  • FIG. 2 is a flowchart showing a cell change execution method in Embodiment 1 of the present disclosure. As shown in Figure 2, as an implementation of Embodiment 1, the following steps are included:
  • Step 1 When the UE initiates the CHO execution process, it judges whether there is an ongoing CPC process. If there is an ongoing CPC process, the UE performs step 2. Otherwise, if there is no ongoing CPC process, the UE performs step 3.
  • the UE initiates the CHO execution process. It may also be that the UE applies the saved conditional reconfiguration condRRCReconfig to the selected candidate cell for CHO, and executes the conditional reconfiguration execution operation (see 5.3.5.3 of 3GPP protocol specification 38.331 chapter and will not be repeated here). It may also be that the UE performs the above judgment during the process of performing the conditional handover, such as when performing the conditional reconfiguration operation.
  • the ongoing CPC process means that the T304 timer for the SCG/PSCell is running, and the execution process of the RRC reconfiguration is initiated due to the conditional reconfiguration of the SCG/PSCell.
  • the no ongoing CPC process means that the T304 timer for the SCG/PSCell is not running or the execution process of the RRC reconfiguration is not initiated due to the conditional reconfiguration of the SCG/PSCell.
  • Step 2 UE stops the ongoing CPC process.
  • the UE stops the ongoing CPC process by performing one or more of the following operations:
  • Operation 1 stop the T304 timer for SCG/PSCell
  • Operation 2 Reset MAC of SCG
  • Operation 3 release the dedicated random access resources provided in the rach-ConfigDedicated configuration (such as the random access preamble).
  • the rach-ConfigDedicated configuration is included in the conditional reconfiguration for SCG corresponding to the CPC process, and is used for the CPC process;
  • Operation 4 Release the conditional reconfiguration for SCG stored in VarConditionalReconfig
  • Operation 5 Revert back to the SCG configuration used at the source SN/SCG. That is, the SCG configuration on the UE falls back to the SCG configuration before the CPC process is executed;
  • Operation 6 Reestablish the RLC entity corresponding to the bearer associated with the SCG.
  • the UE After stopping the ongoing CPC process, the UE performs step 3.
  • This embodiment does not limit the execution sequence when the UE executes more than one of the above operations.
  • Step 3 UE continues to execute the CHO process.
  • the aforementioned stopping of the ongoing CPC process may also be referred to as aborting (abort) the ongoing CPC process.
  • This embodiment provides another cell change method, which is executed on the UE.
  • the UE when the CHO execution process is triggered on the UE, and there is an ongoing CPC execution process on the UE at this time, the UE continues to execute the CPC execution process, and then executes the CHO execution process after the CPC process is completed. Avoid the configuration confusion process caused by executing two related RRC processes on the UE at the same time.
  • the UE executes the CHO execution process, and sends an RRC reconfiguration complete message to the target cell.
  • the UE judges whether there is an ongoing CPC process when the CHO execution procedure is initiated, and if so, the UE includes a in the RRC reconfiguration complete message instruct.
  • the indication is used to inform the CHO target cell that the UE has just gone through a CPC process before performing the CHO process. That is, the execution of CHO is immediately after the CPC process. Therefore, whether there is an ongoing CPC process when the CHO execution process is initiated can also be described as whether there is a just-completed CPC process before the execution of the CHO execution process.
  • the ongoing CPC process means that the T304 timer for the SCG/PSCell is running, and the execution process of the RRC reconfiguration is initiated due to the conditional reconfiguration of the SCG/PSCell.
  • the no ongoing CPC process means that the T304 timer for the SCG/PSCell is not running or the execution process of the RRC reconfiguration is not initiated due to the conditional reconfiguration of the SCG/PSCell.
  • the CHO target cell learns that the UE has just completed a CPC process, and the UE context (SCG configuration) saved by the CHO target cell is no longer the latest UE configuration.
  • the CHO target cell can obtain the latest UE context (SCG configuration) from the source cell through a UE context acquisition process between the initiator and the source cell.
  • the UE context acquisition process refers to the RETRIEVE UE CONTEXT process.
  • the UE suspends the SCG transmission or deactivates it after completing the CPC process The SCG is used to suspend the sending and receiving of the SCG.
  • the UE does not apply the SCG configuration in the RRC reconfiguration corresponding to the target cell or does not perform operations related to the SCG configuration.
  • the UE After the CHO is successfully completed, when the UE successfully receives the first RRC reconfiguration message including the SCG configuration from the CHO target cell, the UE applies the SCG configuration and resumes SCG transmission or activates the SCG.
  • the SCG transmission refers to data radio bearer (Data Radio Bearer, DRB) or signaling radio bearer SRB transmission associated with the SCG.
  • DRB Data Radio Bearer
  • the CPC process and the CPC execution process can be replaced, and the CHO process and the CHO execution process can be replaced.
  • the SCG configuration refers to the RRC configuration included in mrdc-SecondaryCellGroup or mrdc-SecondaryCellGroupConfig.
  • the completion of the CPC procedure by the UE means that the MAC successfully completes the random access procedure triggered by the synchronous reconfiguration of the SCG. It may also refer to the failed end of the CPC process, that is, the PSCell/SCG synchronous reconfiguration failure caused by the timeout of T304 for the SCG.
  • the completion of the CHO process by the UE means that the MAC successfully completes the random access process triggered by the synchronous reconfiguration of the MCG.
  • the UE does not perform the operation of initiating the SCG failure information procedure, that is, does not report the CPC procedure to the network side fail.
  • the UE when the CHO execution process is triggered on the UE, and there is an ongoing CPC execution process on the UE, the UE continues to execute the CPC execution process. At this time, it can be seen that the triggered CHO process is suspended ; After the CPC process is completed, the CHO execution process is executed again, which can be regarded as the triggered CHO process being resumed.
  • a variable can be set on the UE to record whether there is a suspended CHO process. For example, when the CHO process is suspended, the UE sets this variable to "TRUE", and when the CHO process is resumed or not suspended , the UE sets this variable to "FALSE".
  • the UE judges whether there is a pending CHO procedure that has been triggered according to the recorded variables. For example, after the execution of the CPC procedure ends, the UE judges that if the variable value is "TRUE", then the UE resumes the suspended CHO procedure, continues to execute the CHO procedure, and sets the variable value to "FALSE".
  • FIG. 3 is a block diagram showing a 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, and the like.
  • the memory 302 may include, for example, a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memories.
  • Memory 302 has program instructions stored thereon. When the instruction is executed by the processor 301, the above cell change execution method described in detail in the present invention can be executed.
  • the methods and related devices of the present disclosure have been described above in conjunction with preferred embodiments. Those skilled in the art can understand that the methods shown above are only exemplary. The methods of the present disclosure are not limited to the steps and order 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 the like.
  • the various identifiers shown above are only exemplary rather than restrictive, and the present disclosure is not limited to specific information elements as examples of these identifiers. Numerous variations 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 may be a program that causes a computer to realize the functions of the embodiments of the present disclosure 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.
  • a program for realizing the functions of the various embodiments of the present disclosure can be recorded on a computer-readable recording medium.
  • the corresponding functions can be realized by causing a computer system to read programs recorded on the recording medium and execute the 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).
  • the "computer-readable recording medium” may be a semiconductor recording medium, an optical recording medium, a magnetic recording medium, a recording medium in which a short-term dynamic storage program is stored, or any other recording medium readable by a computer.
  • circuits for example, single-chip or multi-chip integrated circuits.
  • Circuits designed to perform the functions described in this specification may include general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination of the above.
  • DSPs digital signal processors
  • ASICs application-specific integrated circuits
  • FPGAs field-programmable gate arrays
  • a general-purpose processor can be a microprocessor, or it can be any existing processor, controller, microcontroller, or state machine.
  • the above-mentioned circuits may be digital circuits or analog circuits. Where new integrated circuit technologies have emerged to replace existing integrated circuits due to advances in semiconductor technology, one or more embodiments of the present disclosure may also be implemented using these new integrated circuit technologies.
  • present disclosure is not limited to the above-described embodiments. Although various examples of the embodiments have been described, the present disclosure 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.

Landscapes

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

Abstract

La présente divulgation concerne un procédé d'exécution de changement de cellule et un équipement d'utilisateur (UE). Le procédé d'exécution de changement de cellule comprend les étapes suivantes : un processus d'exécution d'un transfert intercellulaire conditionnel (CHO) est déclenché sur un UE ; l'UE détermine s'il y a un processus CPC en cours ; si tel est le cas, l'UE arrête le processus CPC en cours ; et dans le cas contraire, l'UE poursuit l'exécution du processus CHO, le processus CPC étant un processus de reconfiguration conditionnelle pour un groupe de cellules secondaires (SCG).
PCT/CN2022/102835 2021-07-05 2022-06-30 Procédé d'exécution de changement de cellule et équipement d'utilisateur WO2023280046A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110759632.6A CN115589620A (zh) 2021-07-05 2021-07-05 小区变更执行方法以及用户设备
CN202110759632.6 2021-07-05

Publications (1)

Publication Number Publication Date
WO2023280046A1 true WO2023280046A1 (fr) 2023-01-12

Family

ID=84771617

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/102835 WO2023280046A1 (fr) 2021-07-05 2022-06-30 Procédé d'exécution de changement de cellule et équipement d'utilisateur

Country Status (2)

Country Link
CN (1) CN115589620A (fr)
WO (1) WO2023280046A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110622559A (zh) * 2017-03-22 2019-12-27 Idac控股公司 基于触发条件的无线网络中的延迟切换执行
CN112437496A (zh) * 2020-04-08 2021-03-02 上海移远通信技术股份有限公司 一种被用于无线通信的通信节点中的方法和装置
US20210099926A1 (en) * 2019-09-26 2021-04-01 FG Innovation Company Limited Method and apparatus for conditional pscell change
WO2021067236A1 (fr) * 2019-10-01 2021-04-08 Idac Holdings, Inc. Mobilité conditionnelle à connectivité multiple
WO2021109394A1 (fr) * 2020-04-09 2021-06-10 Zte Corporation Système et procédé d'amélioration de la mobilité

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110622559A (zh) * 2017-03-22 2019-12-27 Idac控股公司 基于触发条件的无线网络中的延迟切换执行
US20210099926A1 (en) * 2019-09-26 2021-04-01 FG Innovation Company Limited Method and apparatus for conditional pscell change
WO2021067236A1 (fr) * 2019-10-01 2021-04-08 Idac Holdings, Inc. Mobilité conditionnelle à connectivité multiple
CN112437496A (zh) * 2020-04-08 2021-03-02 上海移远通信技术股份有限公司 一种被用于无线通信的通信节点中的方法和装置
WO2021109394A1 (fr) * 2020-04-09 2021-06-10 Zte Corporation Système et procédé d'amélioration de la mobilité

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
LENOVO, MOTOROLA MOBILITY: "Discussion on CPAC", 3GPP DRAFT; R2-2101124, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. Online; 20210125 - 20210205, 15 January 2021 (2021-01-15), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051974121 *
LENOVO, MOTOROLA MOBILITY: "Issues on inter-SN CPC", 3GPP DRAFT; R2-2009868, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. Online; 20201102 - 20201113, 23 October 2020 (2020-10-23), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051942670 *

Also Published As

Publication number Publication date
CN115589620A (zh) 2023-01-10

Similar Documents

Publication Publication Date Title
WO2021190608A1 (fr) Procédé de rapport de défaillance de liaison radio et équipement utilisateur
WO2018024212A1 (fr) Procédé et appareil de transfert intercellulaire
WO2020249081A1 (fr) Procédé pour reprise après défaillance de liaison radio et équipement utilisateur
WO2021115370A1 (fr) Procédé de reprise après défaillance de liaison radio et équipement utilisateur
WO2020025022A1 (fr) Procédé de commande pour un équipement utilisateur et équipement utilisateur
WO2018059299A1 (fr) Procédé, dispositif et système de transfert intercellulaire, et support de stockage informatique
WO2020221193A1 (fr) Procédé de commutation de condition et ue correspondant
WO2021057702A1 (fr) Procédé de reprise après défaillance de liaison radio et équipement utilisateur
US20220322173A1 (en) Method for radio link failure recovery and user equipment
WO2022057783A1 (fr) Procédé de rapport de défaillance de liaison radio et équipement utilisateur
WO2022127731A1 (fr) Procédé de changement de cellule et équipement utilisateur
WO2022012363A1 (fr) Procédé de rapport d'informations de transfert intercellulaire et équipement d'utilisateur
WO2021227881A1 (fr) Procédé de reprise sur défaillance de liaison radio et équipement d'utilisateur correspondant
US20230262565A1 (en) Method performed by user equipment, and user equipment
WO2023040955A1 (fr) Procédé de production de rapport d'informations de transfert intercellulaire et équipement utilisateur
WO2023134763A1 (fr) Procédé de rapport d'informations et équipement utilisateur
WO2023280046A1 (fr) Procédé d'exécution de changement de cellule et équipement d'utilisateur
WO2023005967A1 (fr) Procédé de communication d'informations sur le transfert et équipement utilisateur
WO2024008076A1 (fr) Procédé de production de rapport d'informations de transfert intercellulaire et équipement utilisateur
WO2024017237A1 (fr) Procédé exécuté par un équipement utilisateur, et équipement utilisateur
WO2023179677A1 (fr) Procédé de rapport d'informations de défaillance de liaison radio et équipement utilisateur
WO2022257974A1 (fr) Procédé d'établissement de rapport d'informations de transfert intercellulaire, équipement utilisateur et système de communication
WO2023241622A1 (fr) Procédé exécuté par un équipement utilisateur, et équipement utilisateur et procédé de rapport d'informations
WO2023246770A1 (fr) Procédé exécuté par un équipement utilisateur, et équipement utilisateur
WO2024027704A1 (fr) Procédé de rapport d'informations de transfert intercellulaire, et équipement utilisateur

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22836799

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE