WO2023284831A1 - Procédé d'exécution de surveillance de liaison radio et équipement utilisateur - Google Patents

Procédé d'exécution de surveillance de liaison radio et équipement utilisateur Download PDF

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Publication number
WO2023284831A1
WO2023284831A1 PCT/CN2022/105732 CN2022105732W WO2023284831A1 WO 2023284831 A1 WO2023284831 A1 WO 2023284831A1 CN 2022105732 W CN2022105732 W CN 2022105732W WO 2023284831 A1 WO2023284831 A1 WO 2023284831A1
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Prior art keywords
rlm
relaxation
side cell
cell
handover
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PCT/CN2022/105732
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English (en)
Chinese (zh)
Inventor
刘蕾
刘仁茂
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夏普株式会社
刘蕾
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Publication of WO2023284831A1 publication Critical patent/WO2023284831A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the technical field of wireless communication, and more specifically, the present invention relates to a method for performing wireless link monitoring by user equipment and corresponding user equipment.
  • Radio Link Monitoring is performed in the RRC connection state.
  • the quality of the radio link is generally relatively stable. If such a terminal is configured with a short DRX cycle at the same time, it may frequently monitor the radio link to generate useless power consumption. In this case, the terminal can relax the wireless link monitoring after being judged by a certain criterion, such as reducing the number of sampling times, lengthening the monitoring period, and the like.
  • the criteria used for judging include a low-speed mobile criterion and a good cell criterion, both of which are optionally configured by the network to the terminal.
  • the present invention discusses how to carry out the related problem of wireless link monitoring in the handover process.
  • the purpose of the present invention is to provide a method for performing radio link monitoring performed by user equipment that can avoid power loss during RRC connection handover.
  • a method for performing radio link monitoring performed by a user equipment including: for a user equipment configured with RLM relaxation, if an instruction is received to switch the RRC connection from the source side cell to the target side cell If the handover instruction is received, within a predetermined period after the handover instruction is received, perform the behavior of not performing the RLM relaxation but performing normal RLM in the source side cell.
  • the RRC layer of the user equipment receives the out-of-synchronization indication and thus performs radio link failure detection, if the handover indication is received, it may be performed so that the source side cell does not perform the The RLM described above relaxes to perform the behavior of a normal RLM.
  • the RRC layer of the user equipment when the RRC layer of the user equipment receives an out-of-synchronization indication and thus starts to perform radio link failure detection, if the handover indication has been received, it may be performed so that the all steps are not performed in the source side cell.
  • the RLM described above relaxes to perform the behavior of a normal RLM.
  • the user equipment is configured to periodically perform radio link monitoring, and whenever the radio link monitoring starts to be performed, if the handover instruction has been received, it may be performed so that in the source test The cell does not perform the RLM relaxation but performs normal RLM behavior.
  • the method may further include: if a handover instruction for instructing to switch the RRC connection from the source side cell to the target side cell is received, within a predetermined period after receiving the handover instruction, perform: In the target side cell, the RLM relaxation is not performed but normal RLM is performed.
  • the handover instruction may include an RRC reconfiguration message carrying synchronous reconfiguration information.
  • the switching instruction may further include a DAPS switching instruction indicating DAPS switching.
  • the predetermined period may be an execution period of the RRC connection handover process indicated by the handover instruction.
  • the behavior includes at least one of the following: exit from the current RLM relaxation and execute normal RLM; release the configured RLM relaxation criterion parameters; no longer perform RLM relaxation even if the RLM relaxation criterion is satisfied ; ignore the RLM relaxation criterion.
  • a user equipment including: a processor; and
  • a memory storing instructions, wherein the instructions, when executed by the processor, perform the method as described above.
  • RLM relaxation is not performed but normal RLM is performed, so that it is possible to avoid unnecessary radio link monitoring due to failure to detect radio link failure in time due to RLM relaxation In this case, continue to monitor the wireless link. In this way, it is possible to avoid wasting resources and causing unnecessary power consumption due to unnecessary wireless link monitoring.
  • FIG. 1 is a flowchart of a method for performing radio link monitoring according to an embodiment of the present invention.
  • Fig. 2 is a flowchart of a method for performing radio link monitoring according to another embodiment of the present invention.
  • Fig. 3 is a flowchart of a method for performing radio link monitoring according to another embodiment of the present invention.
  • Fig. 4 is a flowchart of a method for performing radio link monitoring according to another embodiment of the present invention.
  • Fig. 5 is a brief structural block diagram of the user equipment UE involved in the present invention.
  • UE User Equipment user equipment
  • RRC Radio Resource Control radio resource control
  • MAC Medium Access Control, medium access control
  • RRC_IDLE RRC idle state
  • RAN Radio Access Network, wireless access layer
  • RSRP Reference Signal Receiving Power, reference signal receiving power
  • PDCCH Physical downlink control channel, physical downlink control channel
  • BWP Bandwidth Part, bandwidth segment
  • DCI Downlink Control Information, downlink control information
  • MIB Master Information Block, master information block
  • SIB System Information Block, system information block
  • RLM Radio Link Monitoring, wireless link monitoring
  • BFD Beam Failure Detection, beam failure detection
  • RLF Radio Link Failure, wireless link failure
  • RRM Radio Resource Management, wireless resource management
  • the serving cell can be PCell, PSCell or SCell
  • SpCell Special Cell, a special cell, which can be PCell or PSCell.
  • PCell Primary Cell, main cell
  • PSCell Primary SCG Cell, main SCG cell
  • SCell Secondary Cell, auxiliary cell
  • SCG Secondary Cell Group, secondary cell group
  • C-RNTI Cell RNTI, cell RNTI
  • Radio Network Temporary Identifier Radio Network Temporary Identifier, wireless network temporary identifier
  • HARQ Hybrid Automatic Repeat Request, hybrid automatic request retransmission
  • DAPS Dual Active Protocol Stack, dual activation protocol stack
  • SINR Signal to Noise and Interference Ratio, signal to noise and interference ratio
  • DRB (user) Data Radio Bearer, data radio bearer
  • the network, base station and RAN can be used interchangeably, and the network can be a long-term evolution LTE network, a new radio access technology (New RAT, NR) network, an enhanced long-term evolution eLTE network, or a subsequent evolution version of 3GPP Other networks defined in .
  • New RAT new radio access technology
  • eLTE enhanced long-term evolution eLTE network
  • the user equipment UE may refer to the NR equipment supporting the enhanced function of NR power consumption and energy saving described in the background technology, or may refer to the NR equipment supporting radio link monitoring relaxation, or may refer to other types of NR equipment or LTE equipment .
  • radio link monitoring relaxed RLM radio link monitoring relaxed RLM
  • radio link monitoring relaxation mode RLM relaxation mode radio link monitoring relaxed RLM relaxation mode
  • radio link monitoring relaxed RLM relaxation can be used interchangeably.
  • low mobility can be replaced by "stationary”
  • good serving cell quality can be replaced by "not-at-cell-edge” Or "good cell (good cell)” or “good cell quality (good cell quality)” and other replacements.
  • criterion/criteria "evaluation” and “evaluation criterion/criteria” are used interchangeably. These criteria/assessment names can also be modified with “RLM” and/or “parameters”.
  • Any DAPS radio bearer is configured
  • DAPS handover configured
  • DAPS handover can be replaced with each other.
  • handover refers to the change of the primary cell initiated by the network side, 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 cell to the target cell, where the source cell
  • the target cell and the target cell may be the same cell or a different cell.
  • the source cell can also be called the source base station, or the source beam (beam), the source transmission point (Transmission point, TRP), the source primary cell (Primary Cell, PCell), the source special cell (Special Cell, SpCell), the source primary cell Group MCG;
  • the target cell may also be called a target base station, or a target beam, a target transmission point, a target primary cell PCell, a target special cell, and a target cell group MCG.
  • the source cell refers to the cell serving the UE connected before the handover process is initiated, that is, the cell that sends the RRC message including the handover command to the UE.
  • the target cell refers to the cell to which the UE is connected to serve the UE after the handover process is successfully completed, or the cell indicated by the target cell identifier included in the handover command.
  • the handover command described in the present invention is used to trigger the UE to perform handover.
  • it is an RRC reconfiguration message containing a synchronous reconfiguration (reconfigurationWithSync) information element.
  • RRC reconfigurationWithSync a message for the Master Cell Group (MCG)
  • MCG Master Cell Group
  • handover may also be referred to as synchronous reconfiguration of the MCG.
  • the synchronous reconfiguration information element may include configuration information of the target cell, such as target cell identity, target cell frequency, public configuration of the target cell such as system information, random access configuration used by the UE to access the target cell, UE Security parameter configuration in the target cell, radio bearer configuration of the UE in the target cell, etc.
  • the RRC reconfiguration message in the present invention is equivalent to the RRC connection reconfiguration message.
  • the handover command is equivalent to the RRC message containing the handover command, and refers to the RRC message or the configuration in the RRC message that triggers the UE to perform handover.
  • the switching configuration refers to all or part of the configuration in the switching command. Cancellation, release, delete, empty and clear etc. can be used interchangeably. Perform, use, adopt and apply are interchangeable. Configuration and reconfiguration can be replaced.
  • RLM means that the UE monitors the downlink radio link quality according to the reference signal configured by the network, and the purpose is to detect the downlink radio link quality of the special cell SpCell (ie, PCell, PSCell) or the serving cell.
  • the configured reference signal for the RLM procedure may be SSB and/or CSI-RS.
  • the UE executes the RLM procedure on the activated downlink BWP. In order to judge the quality of the downlink, the UE compares the BLER of the downlink radio link with the two thresholds Q out and Qin based on the configured reference signal.
  • the physical layer sends an out-of-sync (out-of-sync) instruction to the upper layer; if the quality of the downlink wireless link is higher than Q in , the physical layer sends an in-sync (synchronous )instruct.
  • Q out corresponds to an out-of-sync BLER (for example, 10%), indicating that the downlink cannot be received reliably;
  • Q in corresponds to a synchronous BLER (for example, 2%), indicating that the downlink can be received reliably.
  • the RRC layer continuously receives N310 out-of-sync indications for the SpCell reported by the physical layer, it starts the T310 timer of the corresponding SpCell.
  • the RRC layer continuously receives N311 in-sync indications for the SpCell reported by the physical layer, it stops the T310 timer of the corresponding SpCell.
  • the UE may consider that a radio link failure has occurred, thereby triggering an RRC reestablishment procedure to restore the radio link.
  • the quality of the radio link is generally relatively stable. If such a terminal is configured with a short DRX cycle at the same time, it may frequently monitor the radio link to generate useless power consumption. In this case, the terminal can loosen wireless link monitoring after a certain criterion is judged, such as reducing the number of sampling times, lengthening the monitoring evaluation period, and lengthening the reporting instruction period.
  • RLM relaxation can be configured by the base station through system messages or RRC dedicated signaling RLM relaxation criteria configuration parameters, RLM relaxation criteria can include low mobility criteria (low mobility) and good serving cell quality criteria (good serving cell quality) .
  • the configuration parameters may include criterion switch, criterion threshold (SINR threshold, and/or RSRP threshold, and/or RSRQ threshold), decision time parameters, and the like.
  • the UE judges its own mobility and serving cell quality by comparing and evaluating the SINR and/or RSRP/RSRQ measurement results of SpCell or serving cell with the threshold value in the RLM relaxation criterion. If the RLM relaxation criterion is satisfied, the UE A relaxed RLM can be employed. Both the low-speed mobility criterion and the good serving cell quality criterion are optional configurations.
  • the UE meets the low-speed mobility criterion, that is, RLM relaxation (or low-speed mobility RLM relaxation) can be performed; if only the good If the serving cell quality criterion is satisfied, the UE meets the good serving cell quality criterion, that is, RLM relaxation (or good serving cell quality RLM relaxation) can be performed; if both the low-speed mobile criterion and the good serving cell quality criterion are configured, the UE detects two Criterion, when both criteria are satisfied, perform RLM relaxation (or low-speed mobile RLM relaxation and good serving cell quality RLM relaxation); if both the low-speed mobile criterion and the good serving cell quality criterion are configured, there is another possibility: If the UE satisfies one of the criteria, it can perform RLM relaxation (or perform low-speed mobile RLM relaxation and good service cell quality RLM relaxation).
  • the DAPS handover introduced in version 16 refers to a handover process.
  • the UE After receiving the RRC message for handover, the UE still maintains the connection with the source base station until the random access process to the target is successfully performed, and the source side is released. connect. During this process, the UE continues to receive downlink data from the source base station until the source cell is released, and the UE continues to send uplink data to the source base station until the random access procedure to the target base station is successfully completed.
  • the RRC message used for handover that is, the RRC reconfiguration message containing the synchronous reconfiguration (reconfigurationWithSync) information element can configure the DRB as the DAPS bearer. Through this configuration, the UE can know whether it needs to perform the DAPS handover process.
  • the UE After receiving the RRC message for handover, the UE starts the T304 timer, and the timer stops after the UE successfully completes random access in the target base station. During the DAPS handover process, the UE continues to perform RLM on the source base station side. If the radio link failure occurs on the source base station side, the UE will suspend the transmission of all DRBs of the source base station and release the connection on the source side. After the DAPS handover is completed, the UE receives the RRC reconfiguration message sent from the target base station, which carries the indication information (such as identified by the daps-SourceRelease information element) used to indicate the release of the source base station. After receiving the indication, the UE executes the release Source base station configuration and operation of the protocol stack.
  • the indication information such as identified by the daps-SourceRelease information element
  • UE meets the RLM relaxation criterion and performs RLM relaxation, and at this time receives a handover command (for example, a handover command with DAPS bearer configuration) issued by the network side.
  • a handover command for example, a handover command with DAPS bearer configuration
  • the UE needs to withdraw from the relaxed RLM, that is, to use normal RLM. Otherwise, if the relaxed RLM continues to be used, the UE will not be able to detect RLF in time, and continue to communicate with the source when the link condition is already bad.
  • the base station maintains data transmission and reception, wasting resources and consuming power consumption.
  • FIG. 1 is a flowchart of a method for performing radio link monitoring according to an embodiment of the present invention.
  • S102 it is judged whether the user equipment is configured with RLM relaxation, and if the user equipment is not configured with RLM relaxation, the process ends.
  • S202 , S302 , and S402 in FIGS. 2 to 4 described later are the same as S102 , and will not be described again.
  • the handover indication may include, for example, an RRC reconfiguration message carrying synchronous reconfiguration information.
  • the handover instruction may include, for example, a DAPS handover instruction indicating DAPS handover.
  • the predetermined period may be, for example, the execution period of the RRC connection handover procedure indicated by the handover instruction. For example, whether the predetermined period expires can be judged by whether the T304 timer for indicating DAPS handover is running.
  • an action of not performing RLM relaxation but performing normal RLM in the source side cell is performed.
  • the behavior may include at least one of the following: exit from currently executing RLM relaxation and perform normal RLM; release configured RLM relaxation criterion parameters; do not perform RLM relaxation even if the RLM relaxation criterion is met; ignore RLM relaxation Criterion, that is, the judgment of the RLM relaxation criterion is not performed.
  • an action of not performing RLM relaxation but performing normal RLM in the target cell may be performed within a predetermined period after receiving the handover instruction.
  • Fig. 2 is a flowchart of a method for performing radio link monitoring according to another embodiment of the present invention.
  • performing radio link failure detection means that the RRC layer of the user equipment has received an out-of-synchronization indication and is in the process of performing radio link failure detection.
  • Fig. 3 is a flowchart of a method for performing radio link monitoring according to another embodiment of the present invention.
  • S304 it is judged whether an out-of-synchronization indication is received. If an out-of-synchronization indication is received, then when receiving an out-of-synchronization indication, at S306, it is judged whether the user equipment has received a handover indication when receiving an out-of-synchronization indication (whether it is received in the past or at the time when an out-of-synchronization indication is received) to the switching instruction). If the handover instruction has been received, perform S308 to S310, that is, perform an action of not performing RLM relaxation but performing normal RLM in the source side cell within a predetermined period. Execution of S308 to S310 is the same as that of S106 to S108 above, so the description will not be repeated here.
  • Fig. 4 is a flowchart of a method for performing radio link monitoring according to another embodiment of the present invention.
  • radio link monitoring is performed periodically.
  • S404 it is determined whether to start wireless link monitoring. Whenever the wireless link monitoring starts, at S406, it is judged whether a handover instruction has been received (whether the handover instruction has been received in the past or when the out-of-synchronization instruction is received). If the handover instruction has been received, perform S408 to S410, that is, perform an action of not performing RLM relaxation but performing normal RLM in the source side cell within a predetermined period. Executing S408 to S410 is the same as the above S106 to S108, so the description will not be repeated here.
  • FIG. 3 if it is judged in 306 that no handover instruction has been received in the past, the solutions in FIG. 2 may also be combined.
  • the path failure detection process if a handover instruction is received, perform an action to perform normal RLM instead of RLM relaxation in the source cell within a predetermined period.
  • FIG. 4 if in S406, no handover instruction has been received in the past whenever the wireless link monitoring is started, it may also be possible in the next wireless link monitoring process, if the handover instruction is received , the behavior of performing normal RLM instead of RLM relaxation in the source cell is performed within a predetermined period.
  • the UE receives an RRC reconfiguration message, which carries a reconfigurationWithSync information element.
  • the UE performs a first behavior, where the first behavior includes but is not limited to one or more of the following:
  • the UE with DAPS bearer performs normal RLM, or does not perform RLM relaxation, or performs RLM as if the low mobility criterion parameter and/or the good serving cell quality criterion are not configured;
  • the UE must meet the performance requirement (requirement) of normal RLM.
  • exiting (exit) RLM relaxation can also be expressed as falling back to normal RLM.
  • the execution sequence of the above-mentioned various actions is not limited.
  • the UE performs the first behavior
  • the UE performs the first behavior.
  • the UE receives the RRC reconfiguration message, and the message carries a reconfigurationWithSync information element, and if T304 is running, the UE performs the first behavior.
  • any DAPS radio bearer is configured (any DAPS bearer is configured)
  • the UE performs the first behavior in the source cell.
  • the UE performs the first behavior in the source cell.
  • the UE receives the RRC reconfiguration message, and the message carries a reconfigurationWithSync information element, and if T304 is running, the UE performs the first behavior in the source cell.
  • any DAPS radio bearer is configured (any DAPS bearer is configured)
  • the UE performs the first behavior in the target cell.
  • the UE performs the first behavior in the target cell.
  • the UE receives the RRC reconfiguration message, and the message carries a reconfigurationWithSync information element, and if T304 is running, the UE performs the first behavior in the target cell.
  • the UE performs detection of radio link failure (Detection of radio link failure). During this process:
  • the UE performs the first behavior; or if T304 is running, the UE performs the first behavior.
  • the UE judges that if any DAPS radio bearer is configured, the UE performs the first behavior in the source cell; or if T304 is running, the UE performs the first behavior in the source cell.
  • the UE judges that if any DAPS radio bearer is configured, the UE performs the first behavior in the target cell; or if T304 is running, the UE performs the first behavior in the target cell.
  • UE performs radio link monitoring (Radio Link Monitoring), in this process:
  • the UE performs the first behavior; or if T304 is running, the UE performs the first behavior.
  • the UE judges that if any DAPS radio bearer is configured, the UE performs the first behavior in the source cell; or if T304 is running, the UE performs the first behavior in the source cell.
  • the UE judges that if any DAPS radio bearer is configured, the UE performs the first behavior in the target cell; or if T304 is running, the UE performs the first behavior in the target cell.
  • This embodiment is a method for sending an RRC reconfiguration message performed by the base station when triggering the UE to perform handover.
  • the base station may not configure the RLM relaxation criterion parameter for the UE, or instruct the UE to release the previously configured RLM relaxation criterion parameter when configuring the handover indication for switching the RRC connection for the UE.
  • the handover instruction may be, for example, an RRC reconfiguration message.
  • the RRC reconfiguration message carries the reconfigurationWithSync information element, if any bearer is configured as a DAPS bearer, the RLM relaxation criterion parameter is not configured in the message, or the previously configured RLM relaxation criterion parameter is released in the message .
  • the message carries the reconfigurationWithSync information element. If the RLM relaxation criterion parameter is configured in the message, no bearer is configured as a DAPS bearer, or if the RLM relaxation criterion parameter has been configured before the RRC reconfiguration message, Do not configure any bearer as a DAPS bearer.
  • Fig. 5 is a brief structural block diagram of the user equipment UE involved in the present invention.
  • the user equipment UE50 includes a processor 51 and a memory 52 .
  • the processor 51 may include, for example, a microprocessor, a microcontroller, an embedded processor, and the like.
  • the memory 52 may include, for example, a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a nonvolatile memory (such as a flash memory), or other memories.
  • Memory 52 has program instructions stored thereon. When the instruction is executed by the processor 51, the above method described in detail in the present invention and executed by the user equipment may be executed.
  • the program running on the device according to the present invention may be a program that causes a computer to realize 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.
  • a program for realizing the functions of the various embodiments of the present invention 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 advances in semiconductor technology have resulted in new integrated circuit technologies that replace existing integrated circuits, one or more embodiments of the invention may also be implemented using these new integrated circuit technologies.
  • the present invention is not limited to the above-described embodiments. Although various examples of the embodiments have been described, the present 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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  • Computer Networks & Wireless Communication (AREA)
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Abstract

La présente invention concerne un procédé d'exécution de surveillance de liaison radio (RLM) exécuté par un équipement utilisateur, consistant : pour un équipement utilisateur configuré avec un assouplissement de RLM, si une instruction de commutation ordonnant de commuter une connexion RRC d'une cellule côté source à une cellule côté cible est reçue dans une période prédéterminée après la réception de l'instruction de commutation, à exécuter un comportement consistant à effectuer une RLM normale au lieu de l'assouplissement de RLM dans la cellule côté source.
PCT/CN2022/105732 2021-07-16 2022-07-14 Procédé d'exécution de surveillance de liaison radio et équipement utilisateur WO2023284831A1 (fr)

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