WO2021008478A1 - Information reporting method and corresponding user equipment - Google Patents

Information reporting method and corresponding user equipment Download PDF

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Publication number
WO2021008478A1
WO2021008478A1 PCT/CN2020/101603 CN2020101603W WO2021008478A1 WO 2021008478 A1 WO2021008478 A1 WO 2021008478A1 CN 2020101603 W CN2020101603 W CN 2020101603W WO 2021008478 A1 WO2021008478 A1 WO 2021008478A1
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Prior art keywords
information
handover
indication
rrc message
sidelink
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PCT/CN2020/101603
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French (fr)
Chinese (zh)
Inventor
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 WO2021008478A1 publication Critical patent/WO2021008478A1/en

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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
    • H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
    • 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
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • 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
    • H04W36/0005—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
    • 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

Definitions

  • the present disclosure relates to the field of wireless communication technology, and more specifically, the present disclosure relates to an information reporting method and corresponding user equipment.
  • One of the research goals of these two projects is to find one of the mobility needs in the network: seamless handover, that is, the handover interruption time of 0 milliseconds or close to 0 milliseconds can be met during the cell handover, and the handover is enhanced. Robustness.
  • CHO Conditional Handover
  • the base station issues a handover command to UE (User Equipment) in advance, where the handover command contains conditional configuration information.
  • the UE performs handover according to the handover command received before when the configured conditions are met.
  • the early issuance of the handover command can increase the success rate of handover command reception, thereby increasing the handover success rate, and avoiding the delay caused by the handover failure caused by the failure of the handover command reception to service interruption.
  • the fast MCG link recovery mechanism is relative to the existing link recovery mechanism (that is, the link connection is restored through the RRC connection re-establishment process).
  • RLF Radio Link Failure, radio link failure
  • SCG Secondary Cell Group
  • the UE initiates The MCG failure (information) process reports the MCG link failure information to the master base station through the SCG link, instead of directly triggering the RRC connection re-establishment process.
  • the primary base station that receives the MCG link failure information report can send an RRC connection reconfiguration message to the UE to trigger the UE to switch to a new cell or send an RRC release message to release the UE connection.
  • the present disclosure proposes solutions to the problem of UE information reporting when the CHO or fast MCG link recovery mechanism is configured in the NR system and the LTE (Long Term Evolution) system.
  • the purpose of the embodiments of the present disclosure is to propose solutions to the problem of UE information reporting in the NR system and the LTE system when the CHO or fast MCG link recovery mechanism is configured. More specifically, the present disclosure proposes a solution to the problem of UE information loss or inaccuracy when the CHO or fast MCG link recovery process occurs.
  • the embodiments of the present disclosure provide an information reporting method executed by user equipment and corresponding user equipment.
  • an information reporting method performed by a user equipment is proposed, which is a UE information reporting method implemented on the user equipment UE for a conditional handover process, including the following steps: conditional handover monitoring and execution steps ,
  • the UE receives the conditional switching command containing the switching execution condition, saves the conditional switching configuration, and detects whether the switching execution condition is satisfied based on the configuration of the switching execution condition, and if the switching execution condition is satisfied, the UE switches according to the saved condition Configure to perform handover to the target cell of the corresponding conditional handover; the conditional handover completes the step, the UE successfully completes the conditional handover; the information reporting step, if the UE is configured for UE information reporting, and if the UE is in the conditional handover process, the corresponding handover execution conditions meet the previous If the UE information report message is sent within a period of time, the UE initiates the sending of the UE information report message to the target cell.
  • the successful completion of the conditional handover includes one or more of the following: a response message for responding to the handover command to the target cell of the handover is delivered to the lower layer. Send the message; successfully send the response message used to respond to the handover command to the handover target cell; the media intervention control MAC layer successfully completes the random access process for accessing the target cell; when the random access channel RACH is configured to skip At this time, the MAC layer indicates that it has successfully received the physical downlink control channel PDCCH scrambled with the UE's wireless network temporary identification RNTI.
  • the handover execution condition corresponding to the conditional handover process includes one or more of the following before being satisfied: a target cell location in the saved conditional handover configuration Before the corresponding handover condition is met; before the UE performs handover to a target cell according to the saved conditional handover configuration; before the UE accesses a conditional handover target cell.
  • the condition for performing the information reporting step further includes: the UE is configured with conditional switching, that is, there is a saved conditional switching configuration on the UE.
  • the UE information is an IDC indication for in-device coexistence, if the UE is configured to provide an IDC indication to the network side, and if the UE switches under the condition The handover execution condition corresponding to the process satisfies the radio resource control RRC message containing IDC indication information in the previous period of time, and the UE initiates the transmission of the RRC message containing IDC indication information to the target cell; when the UE information is a power selection indication
  • PPI overheating assistance information, semi-persistent scheduling SPS assistance information, delay budget report, or maximum bandwidth selection instruction
  • the UE is configured to provide PPI, overheating assistance information, SPS assistance information, delay budget report or maximum bandwidth to the network side Selection indication, and if the UE has sent an RRC message containing PPI, overheating assistance information, SPS assistance information, time delay budget report, or maximum bandwidth selection indication within a period of time before the handover execution conditions
  • an information reporting method performed by a user equipment is proposed, which is implemented on the UE for the UE information reporting method in the RRC connection recovery process after a radio link failure RLF, including the following steps : Radio link monitoring step, the UE detects that the radio link failure RLF occurs; the radio link recovery step, if the UE is configured with the fast primary cell group MCG link failure recovery mechanism, the UE initiates the MCG failure indication process, the process Including generating an RRC message for indicating MCG failure, and submitting it to the lower layer to send the message; the information reporting step, if the UE has sent an RRC message for reporting UE information to the network within a period of time before detecting RLF, the UE will The network side initiates the sending of the RRC message.
  • the RRC message used to indicate MCG failure includes an MCG link failure indication, MCG link failure reason, and measurement result, which are used to inform the network side of the occurrence MCG's RLF.
  • the UE information is an IDC indication
  • the UE is configured to provide an IDC indication to the network side, and if the UE is a period of time before the RLF is detected
  • the UE initiates the sending of an RRC message containing IDC indication information to the network side; when the UE information is PPI, overheating assistance information, SPS assistance information, delay budget report or maximum bandwidth
  • the UE initiates the transmission of the RRC message containing the corresponding UE information to the network side; when the UE information is an IDC indication, if the UE is configured to provide an IDC indication to the network side, and if the UE is a period of time before the RLF is detected If an RRC message containing IDC indication information is sent within, the UE initiates the sending of an RRC message containing IDC indication information to the network side; when the UE information is PPI, overheating assistance information, SPS assistance information, delay budget report or maximum bandwidth
  • the UE initiates the transmission of the RRC message containing the corresponding
  • the period of time before the RLF is detected is a period of time before the RRC message for indicating MCG failure is sent, or before the MCG failure indication procedure is triggered a period of time.
  • a user equipment which includes: a processor; and a memory on which instructions are stored.
  • the instructions are executed by the processor, the user equipment executes the The information reporting method described in the article.
  • the UE can report more accurate UE information during the condition switching process, avoiding the situation that the reported UE information is out of date or UE information is underreported , So as to better ensure the service quality and service continuity of the corresponding business; when the UE uses the fast MCG link failure recovery mechanism, it can report more accurate UE information, or avoid the reported UE information being out of date or UE information underreporting In order to better guarantee the service quality and service continuity of the corresponding service before and after the wireless link recovery process.
  • Figure 1 is a flowchart of a general handover process in an LTE/NR system.
  • FIG. 2 is a flowchart of an information reporting method performed by a user equipment UE according to Embodiment 1 of the present disclosure.
  • FIG. 3 is a flowchart of an information reporting method performed by a user equipment UE according to Embodiment 2 of the present disclosure.
  • Fig. 4 is a brief structural block diagram of the user equipment UE involved in the present disclosure.
  • LTE Long Term Evolution
  • NR New Radio Access
  • E-UTRA Evolved Universal Terrestrial Radio Access
  • handover refers to the change of the primary cell initiated by the network side, including the primary cell change between cells and the primary cell change 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 It can be the same cell as the target cell or a different cell.
  • the secret key or security algorithm used for access layer security is also updated.
  • the source cell may also be referred to as a source base station, and may also be a source beam (beam) or a source transmission point (TRP).
  • the target cell may also be referred to as a target base station, or a target beam or a target transmission point.
  • the source cell refers to the cell that is connected to serve the UE before the handover process is initiated, that is, the cell that sends the RRC message containing the handover command to the UE.
  • the target cell refers to the cell that the UE is connected to and serves 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 disclosure is used to trigger the UE to perform handover.
  • it is an RRC reconfiguration message containing a synchronization reconfiguration (Reconfigurationwithsync) information element, and furthermore, it contains a master cell group (MCG).
  • MCG master cell group
  • the handover in the NR can also be referred to as the MCG synchronization reconfiguration.
  • the synchronization reconfiguration information element or the mobile control information information element contains the configuration information of the target cell, such as the target cell identity, the target cell frequency, the common configuration of the target cell, such as system information, and the random information used by the UE to access the target cell. Access configuration, UE security parameter configuration in the target cell, UE radio bearer configuration in the target cell, etc.
  • the RRC reconfiguration message in the present disclosure is equivalent to the RRC connection reconfiguration message; similarly, the response message RRC reconfiguration complete message is equivalent to the RRC connection reconfiguration complete 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 the handover.
  • Switch configuration refers to all or part of the configuration in the switch command. Cancel, release, delete, empty and clear can be replaced. Execution, use and application can be replaced. Configuration and reconfiguration can be replaced. Monitoring (monitor) and detection (detect) can be replaced. Conditional switching commands and conditional switching configurations can be replaced.
  • the UE after the UE receives a radio resource control (Radio Resource Control, RRC) message containing a handover command, it still maintains the communication with the source base station including data transmission before initiating the handover process, so as to further reduce the interruption of data transmission. time.
  • RRC Radio Resource Control
  • a handover process which refers to a process in which a UE in an RRC connected state changes a serving cell.
  • a handover process which refers to a process in which a UE in an RRC connected state changes a serving cell.
  • Phase 1 Measurement phase.
  • the base station sends the measurement configuration to the User Equipment (UE); the UE measures the radio link corresponding to the serving cell or neighboring cell based on the measurement configuration, and when the configured measurement reporting conditions are met, the UE sends the measurement to the base station report.
  • the measurement phase is not necessary, and the UE can be handed over blindly when the base station does not have a valid measurement report.
  • Phase 2 Handover preparation phase.
  • the base station determines whether to trigger a handover for the UE based on the received measurement report and other factors such as base station load. If it is determined to trigger a handover for the UE, the source base station initiates the handover preparation process by sending a handover request message to the target base station.
  • the target base station decides whether to accept this handover request for the UE according to the UE context in the handover request message and the available resources of the target base station. If possible, it will reply to the source base station with a handover confirmation message, where the handover confirmation message contains a base station Inter-node RRC messages are handover commands.
  • Phase 3 Switch execution phase.
  • the source base station issues a handover command to the UE and starts to forward the UE's data to the target base station.
  • the UE that receives the handover command immediately applies the configuration of the handover command to perform handover, accesses the target base station through a random access process, and sends a confirmation message to the target base station. Among them, the random access process is not necessary.
  • Phase 4 Handover completion phase. After the target base station confirms that the UE has successfully accessed, it sends a handover complete message to the source base station. The source base station can release the UE context stored on it accordingly.
  • the handover process in the current system will cause the interruption of data transmission.
  • the optimization of the handover process such as handover without random access process, will still connect before disconnection (Make Before Break, MBB). ) And so on are designed to reduce the data interruption time during the switching process.
  • condition-based switching As mentioned above, in the technical requirements of Release 16, it is required to meet the "0ms" data interruption delay as much as possible during the mobile handover process, and to improve the robustness of handover to meet the mobility requirements of seamless handover in NR.
  • the handover command reception failure caused by the untimely issuance of the handover command.
  • condition-based switching condition switching for short.
  • 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 conditions under real handover conditions (relative to the conservative Before the measurement report threshold is met, the handover command is issued to the UE in advance, which carries the conditions for the UE to perform the handover.
  • the UE receives the conditional handover command, it does not immediately execute the handover, but saves the received handover command configuration, and starts monitoring the source cell according to the handover execution conditions carried in the handover command message. Link quality or link quality of the target cell.
  • the UE Only when it is monitored that the configured handover execution conditions are met, the UE starts to execute the saved handover command and access to the target cell (that is, according to the saved conditional handover configuration corresponding to the target cell that meets the conditions, access To the target cell).
  • the present disclosure refers to conditional switching, but does not limit its naming. It can also be referred to as the switching mechanism of the advance switching command, the advance switching, the early switching preparation, the switching including the switching execution conditions, and the like.
  • the UE initiates an RRC connection re-establishment process to reestablish/restore the connection with the network side.
  • the UE first performs a cell selection process to select a re-established cell, and sends an RRC connection re-establishment request message to it.
  • the UE When receiving the RRC connection re-establishment message in response to the RRC connection re-establishment request message, the UE executes the RRC configuration contained in the message, and returns an RRC connection re-establishment complete message to the network side, and successfully ends the RRC connection re-establishment process. Restore the RRC connection with the network side.
  • the 3GPP RAN2 working group is currently working on a project: the dual link and carrier aggregation enhancement project (see document RP-190452) to discuss a fast MCG link recovery mechanism.
  • the so-called "fast” is relative to the existing link recovery mechanism (that is, the link connection is restored through the RRC connection re-establishment process).
  • the fast MCG link recovery mechanism when RLF occurs in the MCG of the UE, if the secondary cell group (SCG) link quality of the UE is good (that is, RLF does not occur or the timer T310 is not running, or SCG is not suspended (not suspended).
  • SCG secondary cell group
  • the UE initiates the MCG failure (information) process through the SCG link (such as split signaling wireless
  • the bearer split SRB or the third signaling radio bearer SRB3 reports the MCG link failure information to the primary base station, instead of directly triggering the RRC connection re-establishment process.
  • the UE will suspend all transmissions on the MCG side corresponding to the SRB and DRB, and can also reset the MAC entity corresponding to the MCG.
  • the primary base station that receives the MCG link failure information report can send an RRC connection reconfiguration message (ie, handover command) to the UE to trigger the UE to perform handover or send an RRC release message to release the UE's connection.
  • RRC connection reconfiguration message ie, handover command
  • This fast MCG link recovery mechanism/process can be applied to the situation where MR-DC (Multi-Radio access technology Dual Connectivity) is configured, such as NE-DC (NR E-UTRA Dual Connectivity), EN-DC (E- UTRA NR Dual Connectivity), NR DC (New Radio Dual Connectivity), NGEN-DC (Next Generation-radio access network E-UTRA NR Dual Connectivity), LTE DC (intra-E-UTRAN DC), etc.
  • the name of the fast MCG link recovery mechanism is not limited in the present disclosure. For example, it can also be called MCG recovery through SCG, MCG failure process, MCG failure information, enhanced MCG link recovery, etc.
  • the UE information reporting involved in this disclosure includes the following situations.
  • MBMS interest indication messages For UEs supporting multimedia broadcast multicast services (Muiltmedia Broadcast Multicast Service, MBMS), RRC messages (MBMS interest indication messages (MBMS interest indication)) can be used to notify the network side of the MBMS services that the UE is receiving or the MBMS services of interest. It can inform the network side about the priority of MBMS service and unicast service reception. The purpose of this is to enable the network side to consider the UE's MBMS service requirements when making decisions on UE scheduling and mobility after learning this information, so as to ensure the continuity of the MBMS service.
  • MMS interest indication For UEs supporting multimedia broadcast multicast services (Muiltmedia Broadcast Multicast Service, MBMS), RRC messages (MBMS interest indication)) can be used to notify the network side of the MBMS services that the UE is receiving or the MBMS services of interest. It can inform the network side about the priority of MBMS service and unicast service reception. The purpose of this is to enable the network side to consider the UE
  • the RRC message may include the frequency information of the MBMS service that the UE is receiving or is interested in, the MBMS priority information used to indicate whether the UE considers the MBMS service to be received prior to unicast reception, and the MBMS service information that the UE is receiving or is interested in receiving. (Such as Temporary Mobile Group Identity (TMGI)) etc.
  • TMGI Temporary Mobile Group Identity
  • the RRC message (sidelinkUEinformation message) can be used to indicate to the network side its communication, sidelink discovery, or V2X communication. Are interested or no longer interested in receiving.
  • the UE may also request resource allocation or resource release for sidelink communication or discovery or V2X communication to the network side through the RRC message, and may also report information from inter-frequency/inter-network cells to the network side through the RRC message.
  • /inter-PLMN Public Land Mobile Network
  • the network side can perform corresponding resource management and handover target cell determination for the UE based on the above-mentioned information reported by the UE, so as to ensure the service quality and service continuity of the sidelink service and the V2X service of the UE.
  • IDC in-device Coexistence
  • they can inform the network side of the IDC problems they have experienced or the occurrence of IDC problems they have experienced through RRC messages (InDeviceCoexIndication). Change, you can also provide some information to the network side to solve the IDC problem, such as the affected carrier frequency information, suggested time division multiplexing auxiliary information, etc.
  • auxiliary information provision or delay budget reporting (delay budget report) or overheating (overheating) auxiliary information reporting
  • the network can also be notified of its energy saving options, SPS assistance information, maximum physical channel bandwidth configuration options, overheating assistance information, or a delay budget report containing the expected increase or decrease of the Uu interface reception delay through the RRC message (UEassistanceInformation).
  • the network side can adjust the configuration of the UE based on the auxiliary information to meet the requirements of the UE.
  • UE information reporting messages For ease of description, the information reported by the UE to the network side is collectively referred to as UE information in this disclosure, and the corresponding RRC messages used for reporting UE information are collectively referred to as UE information reporting messages.
  • the UE when the handover is successfully completed, if the UE is configured to provide PPI, overheating assistance information, SPS assistance information, delay budget report or maximum bandwidth selection instruction to the network side, the UE will determine whether it is before receiving the handover command. The UE assistance information UEassistanceinformation message has been sent within one second. If so, the UE initiates the transmission of the UE assistance information UEassistanceinformation message to the target cell after the successful handover. If the UE is configured to provide an IDC indication to the network side, the UE determines whether the InDeviceCoexIndication message has been sent within one second before receiving the handover command.
  • the UE initiates the in-device coexistence to the target cell where the handover is successful Indicate the sending of InDeviceCoexIndication message.
  • the primary cell broadcasts a system information block for MBMS (such as SIB15)
  • the UE determines whether it has sent the MBMS Interest Indication MBMSInterestIndication message within one second before receiving the handover command. If so, the UE determines the MBMS it is interested in Frequency set and/or MBMS service set of interest, and initiate MBMS Interest Indication MBMSInterestIndication message.
  • the UE determines whether it has been sent within one second before receiving the handover command
  • An edge communication UE information sidelinkUEInformation message used to indicate that its sidelink communication or sidelink discovery or V2X sidelink communication-related parameters associated with the target primary cell have changed. If so, the UE initiates the sending of the edge communication UE information sidelinkUEInformation message to the target cell. The purpose of this is to prevent the UE information from being unsuccessfully delivered to the target cell during the handover process, causing the target cell to fail to obtain the latest UE information.
  • the UE determines whether the RLF is detected before The MBMS Interest Indication MBMSInterestIndication message has been sent within one second. If so, the UE determines the MBMS frequency set and/or the MBMS service set that it is interested in, and initiates the MBMS Interest Indication MBMSInterestIndication message.
  • the UE determines whether it has sent a message indicating its sidelink communication or sidelink discovery or V2X sidelink within one second before RLF is detected.
  • the communication-related edge communication UE information sidelinkUEInformation message whose parameters associated with the primary cell have changed. If yes, the UE initiates the sending of the edge communication UE information sidelinkUEInformation message to the primary cell. The purpose of this is to prevent the UE information from being not successfully reported to the primary cell for re-establishment during the RLF and RRC connection re-establishment process, resulting in the primary cell being unable to obtain the latest UE information.
  • the UE may restore the connection with the network side through the handover performed by the handover signaling from the MCG received from the SCG, instead of directly executing
  • the RRC connection re-establishment process restores the connection with the network side.
  • this may make the UE information that the UE wants to report to the network side before detecting the occurrence of RLF cannot be delivered to the primary cell after the handover , Thus causing the corresponding business such as MBMS business continuity or service quality to affect. This becomes a problem that the present disclosure intends to solve.
  • the UE after the UE completes the handover, if the UE information report message is sent within one second before receiving the handover command, the UE initiates the sending of the UE information report message to the target cell after the successful handover.
  • the conditional handover is configured, because the UE may not perform the handover immediately when receiving the conditional handover command, this makes the UE information reported to the target cell after the handover succeeds according to the existing mechanism may be out of date or underreported happening. As a result, the corresponding business such as MBMS business continuity or service quality is affected. This has also become a problem that the present disclosure wants to solve.
  • This embodiment proposes a UE information reporting method implemented on the UE for the conditional handover process.
  • the UE can report more accurate UE information during the conditional switching process, avoiding the situation that the reported UE information is out of date or the UE information is underreported, thereby better guaranteeing the service quality and the corresponding service. Service continuity.
  • Figure 2 is used to describe the process.
  • Step S201 condition switching completion step: the UE successfully completes the conditional switching.
  • the successful completion of the conditional handover can also have the following expressions: a response message (RRC reconfiguration complete message) for responding to the handover command to the target cell of the handover is delivered to the lower layer to send the message; (successfully) sent A response message (RRC reconfiguration complete message) used to respond to the handover command to the target cell of the handover; the Medium Access Control (MAC) layer successfully completed the random access process for accessing the target cell; When the random access channel (Random Access Channel, RACH) is passed, the MAC layer indicates that it has successfully received the physical downlink control channel (PDCCH) scrambled with the UE's Radio Network Temporary Identifier (RNTI).
  • RACH Radio Network Temporary Identifier
  • step S200 condition switching monitoring and execution step: the UE receives a conditional switching command containing a switching execution condition, saves the conditional switching configuration, and detects the switching execution based on the configuration of the switching execution condition Whether the conditions are met. If the handover execution condition is met, the UE executes handover to the corresponding conditional handover target cell according to the saved conditional handover configuration.
  • Step S202 information reporting step: If the UE is configured for UE information reporting, and if the UE has sent a UE information reporting message within a period of time before the handover execution conditions corresponding to the conditional handover process are met, the UE initiates a message to the target cell Sending UE information report message.
  • the period of time is 1 second.
  • the handover execution condition corresponding to the conditional handover process Before the handover execution condition corresponding to the conditional handover process is met, it can also be expressed as: before the handover condition corresponding to a target cell in the saved conditional handover configuration is met; the UE executes the handover to a target cell according to the saved conditional handover configuration Before handover; before the UE accesses a conditional handover target cell.
  • the conditions performed in step S202 also include that the UE is configured with conditional switching.
  • the conditional switching configuration of the UE may also be expressed as a conditional switching configuration saved on the UE.
  • step S202 can be described as: if the UE is configured to provide an IDC indication to the network side, and if the UE has sent an IDC indication within a period of time before the handover execution condition corresponding to the condition handover process is satisfied If an RRC message containing IDC indication information (such as an InDeviceCoexIndication message) is included, the UE initiates transmission of an RRC message containing IDC indication information to the target cell.
  • an RRC message containing IDC indication information such as an InDeviceCoexIndication message
  • step S202 can be described as: if the UE is configured to provide PPI, overheating assistance information, SPS assistance to the network side Information, delay budget report or maximum bandwidth selection indication, and if the UE has sent PPI, overheating auxiliary information, SPS auxiliary information, delay budget report or maximum bandwidth within a period of time before the switching execution conditions corresponding to the conditional switching process are met
  • the indicated RRC message such as UE assistance information UE assistance information message
  • the UE initiates the transmission of the RRC message containing the corresponding UE information to the target cell.
  • step S202 can be described as: if the primary cell broadcasts a system information block for MBMS (such as SIB15), and if the UE is in the conditional handover process, the corresponding handover execution condition meets the previous If an RRC message containing an MBMS interest indication (such as an MBMSInterestIndication message) is sent within a period of time, the UE determines the MBMS frequency set and/or the MBMS service set it is interested in, and initiates an RRC message containing the MBMS interest indication.
  • a system information block for MBMS such as SIB15
  • RRC message containing an MBMS interest indication such as an MBMSInterestIndication message
  • step S202 can be described as: if the primary cell broadcasts a system information block for sidelink communication or sidelink discovery or V2X sidelink communication (for example, corresponding to SIB18, SIB19, and SIB21, respectively), and if The UE has sent an RRC message indicating that its sidelink communication or sidelink discovery or V2X sidelink communication related parameters associated with the target primary cell change within a period of time before the handover execution conditions corresponding to the conditional handover process are met ( For example, the sidelinkUEInformation message), the UE initiates the sending of an RRC message containing sidelink UE information to the target cell.
  • a system information block for sidelink communication or sidelink discovery or V2X sidelink communication for example, corresponding to SIB18, SIB19, and SIB21, respectively
  • RRC message indicating that its sidelink communication or sidelink discovery or V2X sidelink communication related parameters associated with the target primary cell change within a period of time before the handover execution conditions corresponding to the conditional handover process are met
  • This embodiment proposes a method for reporting UE information in the RRC connection recovery process after a radio link failure, implemented on the UE.
  • the UE uses the fast MCG link failure recovery mechanism, it can report more accurate UE information, or prevent the reported UE information from being out of date or UE information underreporting, thereby better guaranteeing Corresponding service quality and service continuity before and after the wireless link recovery process.
  • the process is described using FIG. 3.
  • Step S301 radio link monitoring step: The UE detects that a radio link failure RLF occurs.
  • Step S302 radio link recovery step: If the UE is configured with a fast MCG link failure recovery mechanism, the UE initiates an MCG failure indication process, which includes generating an RRC message for indicating MCG failure, and submitting it to the lower layer for sending The message.
  • the RRC message used to indicate MCG failure (for example, the MCG failure information message MCGFailureInformation) is used to inform the network side (ie, the primary cell of the UE) that the RLF of the MCG has occurred.
  • the RRC message may include MCG link failure indication, MCG link failure reason, measurement result, etc.
  • the UE is configured with a fast MCG link failure recovery mechanism, which can also be described as the UE being enabled with a fast MCG link failure recovery mechanism, or the UE supports a fast MCG link failure recovery mechanism.
  • Step S303 information reporting step: If the UE sends an RRC message for reporting UE information to the network side within a period of time before the RLF is detected in step S301, the UE initiates the sending of the RRC message to the network side.
  • the period of time is 1 second.
  • step S303 can be described as: if the UE is configured to provide an IDC indication to the network side, and if the UE has sent an RRC message containing IDC indication information within a period of time before detecting RLF (such as the InDeviceCoexIndication message), the UE initiates the sending of an RRC message containing IDC indication information to the network side.
  • step S303 can be described as: if the UE is configured to provide PPI, overheating assistance information, SPS assistance to the network side Information, delay budget report or maximum bandwidth selection indication, and if the UE has sent an RRC message containing PPI, overheating assistance information, SPS assistance information, delay budget report or maximum bandwidth selection indication within a period of time before RLF is detected ( For example, UE assistance information (UEassistanceinformation message), the UE initiates the transmission of an RRC message containing corresponding UE information to the network side.
  • UE assistance information UEassistanceinformation message
  • step S303 can be described as: if the primary cell broadcasts a system information block for MBMS (such as SIB15), and if the UE has sent a message containing information within a period of time before RLF is detected If the UE determines the MBMS frequency set and/or the MBMS service set that it is interested in, and initiates the transmission of the RRC message containing the MBMS interest indication to the network side.
  • a system information block for MBMS such as SIB15
  • step S303 can be described as: if the primary cell broadcasts system information blocks for sidelink communication or sidelink discovery or V2X sidelink communication (for example, corresponding to SIB18, SIB19, and SIB21, respectively), and if The UE has sent an RRC message (such as a sidelinkUEInformation message) that indicates its sidelink communication or sidelink discovery or V2X sidelink communication related parameters associated with the primary cell within a period of time before the RLF is detected. Initiate the sending of an RRC message containing sidelink UE information to the network side.
  • RRC message such as a sidelinkUEInformation message
  • the period of time before the RLF is detected may also be a period of time before the RRC message for indicating MCG failure is sent in step S302 or may be before the MCG failure indication process is triggered in step S302 Some time.
  • This embodiment proposes a UE information reporting method implemented on the UE for the RRC connection recovery process after a radio link failure.
  • the UE uses the fast MCG link failure recovery mechanism, it can report more accurate UE information, or avoid the situation that the reported UE information is out of date or the UE information is underreported, thereby better guaranteeing Corresponding service quality and service continuity before and after the wireless link recovery process.
  • Step 1 The UE detects a radio link failure RLF.
  • Step 2 The UE initiates an MCG failure indication process, which includes generating an RRC message for indicating MCG failure, and submitting it to the lower layer to send the message.
  • the RRC message used to indicate MCG failure (for example, the MCG failure information message MCGFailureInformation) is used to inform the network side (ie, the primary cell of the UE) that the RLF of the MCG has occurred.
  • the RRC message may include MCG link failure indication, MCG link failure reason, measurement result, and so on.
  • step 2 is performed when the UE is configured with a fast MCG link failure recovery mechanism.
  • the UE is configured with a fast MCG link failure recovery mechanism, which can also be described as the UE being enabled with a fast MCG link failure recovery mechanism, or the UE supports a fast MCG link failure recovery mechanism.
  • Step 3 The UE receives an RRC reconfiguration message from the MCG, where the RRC message is used to instruct the UE to perform handover. As mentioned above, the RRC message is transferred through the SCG link.
  • Step 4 The UE performs handover according to the handover command described in step 3 and successfully completes the handover.
  • the successful completion of the handover can also have the following expressions: a response message (RRC reconfiguration complete message) used to respond to the handover command to the target cell of the handover is delivered to the lower layer to send the message; (successfully) the user is sent In response to the handover command response message (RRC reconfiguration complete message) to the handover target cell; the Medium Access Control (MAC) layer successfully completes the random access process for accessing the target cell; when the skip is configured During RACH, the MAC layer indicates that it has successfully received the PDCCH scrambled with the UE's Radio Network Temporary Identifier (RNTI).
  • RNTI Radio Network Temporary Identifier
  • Step 5 If the UE sends an RRC message for reporting UE information to the network side within a period of time before the RLF is detected in step 1, the UE initiates the sending of the RRC message to the target cell where the handover is successful.
  • the period of time is 1 second.
  • step 5 can be described as: if the UE is configured to provide an IDC indication to the network side, and if the UE has sent an RRC message containing IDC indication information within a period of time before detecting RLF (such as the InDeviceCoexIndication message), the UE initiates the sending of an RRC message containing IDC indication information to the network side.
  • step 5 can be described as: if the UE is configured to provide PPI, overheating assistance information, SPS assistance to the network side Information, delay budget report or maximum bandwidth selection indication, and if the UE has sent an RRC message containing PPI, overheating assistance information, SPS assistance information, delay budget report or maximum bandwidth selection indication within a period of time before RLF is detected ( For example, UE assistance information (UEassistanceinformation message), the UE initiates the transmission of an RRC message containing corresponding UE information to the network side.
  • UE assistance information UEassistanceinformation message
  • step 5 can be described as: if the primary cell broadcasts a system information block for MBMS (such as SIB15), and if the UE has sent a message containing information within a period of time before RLF is detected If the UE determines the MBMS frequency set and/or the MBMS service set that it is interested in, and initiates the transmission of the RRC message containing the MBMS interest indication to the network side.
  • a system information block for MBMS such as SIB15
  • step 5 can be described as: if the primary cell broadcasts system information blocks for sidelink communication or sidelink discovery or V2X sidelink communication (for example, corresponding to SIB18, SIB19, and SIB21, respectively), and if The UE has sent an RRC message (such as a sidelinkUEInformation message) that indicates its sidelink communication or sidelink discovery or V2X sidelink communication related parameters associated with the primary cell within a period of time before the RLF is detected. Initiate the sending of an RRC message containing sidelink UE information to the network side.
  • RRC message such as a sidelinkUEInformation message
  • the period of time before the RLF is detected may also be a period of time before the RRC message for indicating MCG failure is sent or may be a period of time before the MCG failure indication procedure is triggered.
  • the condition for the UE to decide to initiate UE information reporting further includes, if the UE sends an RRC message indicating MCG failure information to the network before receiving the handover command. Or it can be expressed that the handover command is used to respond to the RRC message used to indicate MCG failure information; or it can also be expressed as that the UE initiates a fast MCG indicating MCG failure information before receiving the handover command Failure recovery process.
  • the UE performs step 5, otherwise the UE determines that the RRC message for reporting UE information has been sent to the network side within a period of time before receiving the handover command in step 3, then the UE initiates the RRC to the target cell where the handover is successful Sending of messages.
  • Fig. 4 is a brief structural block diagram of the user equipment UE involved in the present disclosure.
  • the user equipment UE400 includes a processor 401 and a memory 402.
  • the processor 401 may include, for example, a microprocessor, a microcontroller, an embedded processor, and the like.
  • the memory 402 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.
  • the memory 402 stores program instructions. When the instruction is executed by the processor 401, it can execute the above-mentioned method executed by the user equipment described in detail in this disclosure.
  • base station refers to a mobile communication data and control switching center with larger transmission power and wider coverage area, including functions such as resource allocation and scheduling, data reception and transmission.
  • User Equipment is a mobile communication data and control switching center with larger transmission power and wider coverage area, including functions such as resource allocation and scheduling, data reception and transmission.
  • user mobile terminals such as mobile phones, notebooks, and other terminal devices that can communicate with base stations or micro base stations wirelessly.
  • the method and related equipment of the present disclosure have been described above in conjunction with preferred embodiments. Those skilled in the art can understand that the method shown above is only exemplary. The method of the present disclosure 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 can be developed or developed in the future that can be used for base stations, MMEs, or UEs, and so on.
  • 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. Those skilled in the art can make many changes and modifications based on the teaching of the illustrated embodiment.
  • the program running on the device may be a program that causes the computer to implement the functions of the embodiments of the present disclosure by controlling a central processing unit (CPU).
  • the program or the information processed by the program can 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.
  • the program for realizing the functions of the various embodiments of the present disclosure can be recorded on a computer-readable recording medium.
  • Corresponding functions can be realized by causing the computer system to read the programs recorded on the recording medium and execute these programs.
  • the so-called "computer system” herein may be a computer system embedded in the device, and 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 storing a program dynamically for a short time, 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 can include general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, discrete Gate or transistor logic, discrete hardware components, or any combination of the above devices.
  • the general-purpose processor may be a microprocessor, or any existing processor, controller, microcontroller, or state machine.
  • the above circuit can be a digital circuit or an analog circuit. In the case of new integrated circuit technologies that 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-mentioned embodiments. Although various examples of the embodiment 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 conditioning, office equipment, vending machines, and other household appliances.

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Abstract

The present disclosure provides an information reporting method executed by user equipment (UE) and corresponding UE. The information reporting method executed by UE is a UE information reporting method implemented on UE and used in a conditional handover procedure. The method comprises the following steps: a conditional handover monitoring and execution step, in which UE receives a conditional handover command comprising a handover execution condition, stores conditional handover configurations, detects, on the basis of configurations of the handover execution condition, whether the handover execution condition is satisfied, and if so, executes a handover to a corresponding conditional handover target cell according to the stored conditional handover configurations; a conditional handover completion step, in which the UE successfully completes the conditional handover; and an information reporting step, in which if the UE is configured to perform UE information reporting and if the UE has transmitted a UE information reporting message within a period before the handover execution condition corresponding to a conditional handover procedure is satisfied, the UE initiates transmission of a UE information reporting message to the target cell.

Description

信息上报方法及对应的用户设备Information reporting method and corresponding user equipment 技术领域Technical field
本公开涉及无线通信技术领域，更具体地，本公开涉及信息上报方法以及对应的用户设备。The present disclosure relates to the field of wireless communication technology, and more specifically, the present disclosure relates to an information reporting method and corresponding user equipment.
背景技术Background technique
2018年6月，在第三代合作伙伴计划(3rd Generation Partnership Project：3GPP)RAN#80次全会上批准了一个5G技术标准的新的研究项目(参见非专利文献：RP-181433：New WID on NR(New Radio)mobility enhancements)。此外，另有一个Release 16的新研究项目(参见非专利文献：RP-190272：WID for Even further Mobility enhancement in E-UTRAN(Evolved-Universal Terrestrail Radio Access Network))。这两个项目的研究目的之一是找到用于满足网络中的移动性需要之一：无缝切换，即在小区切换过程中能够满足0毫秒或接近0毫秒的切换中断时间，并增强切换的鲁棒性。在正在研究的降低切换中断时间和/或增强切换鲁棒性的解决方案中，有一种解决方法称为基于条件的切换(Conditional HandOver，CHO)。在CHO机制中，基站提前下发切换命令给UE(User Equipment，用户设备)，其中切换命令中包含条件配置信息。UE在所配置的条件满足时再根据之前收到的切换命令来执行切换。这样通过切换命令的提前下发可以提高切换命令接收的成功率，从而提高切换成功率，避免因切换命令接收失败而带来的切换失败对业务中断带来的时延。In June 2018, at the 3rd Generation Partnership Project (3rd Generation Partnership Project: 3GPP) RAN# 80th plenary meeting, a new research project on 5G technical standards was approved (see Non-Patent Document: RP-181433: New WID on NR(New Radio)mobilityenhancements). In addition, there is another new research project of Release 16 (see non-patent literature: RP-190272: WID for Even further Mobility enhancement in E-UTRAN (Evolved-Universal Terrestrail Radio Access Network)). One of the research goals of these two projects is to find one of the mobility needs in the network: seamless handover, that is, the handover interruption time of 0 milliseconds or close to 0 milliseconds can be met during the cell handover, and the handover is enhanced. Robustness. Among the solutions that are being studied to reduce the handover interruption time and/or enhance the handover robustness, there is a solution called Conditional Handover (Conditional HandOver, CHO). In the CHO mechanism, the base station issues a handover command to UE (User Equipment) in advance, where the handover command contains conditional configuration information. The UE performs handover according to the handover command received before when the configured conditions are met. In this way, the early issuance of the handover command can increase the success rate of handover command reception, thereby increasing the handover success rate, and avoiding the delay caused by the handover failure caused by the failure of the handover command reception to service interruption.
此外，3GPP RAN2工作组目前在讨论一种快速MCG(Master Cell Group，主小区组)链路恢复机制。快速MCG链路恢复机制是相对于现有链路恢复机制(即通过RRC连接重建立过程来恢复链路连接)而 言的。在快速MCG链路恢复机制中，当UE的MCG发生RLF(Radio Link Failure，无线链路失败)时，若UE的辅小区组(Secondary Cell Group，SCG)链路质量是好的，则UE发起MCG失败(信息)流程，通过SCG链路将MCG链路失败的信息报告给主基站，而不是直接触发RRC连接重建立过程。收到MCG链路失败信息报告的主基站可以向UE发送RRC连接重配置消息来触发UE切换到一个新的小区或者发送RRC释放消息来释放UE的连接。In addition, the 3GPP RAN2 working group is currently discussing a fast MCG (Master Cell Group) link recovery mechanism. The fast MCG link recovery mechanism is relative to the existing link recovery mechanism (that is, the link connection is restored through the RRC connection re-establishment process). In the fast MCG link recovery mechanism, when the UE’s MCG has an RLF (Radio Link Failure, radio link failure), if the UE’s Secondary Cell Group (SCG) link quality is good, the UE initiates The MCG failure (information) process reports the MCG link failure information to the master base station through the SCG link, instead of directly triggering the RRC connection re-establishment process. The primary base station that receives the MCG link failure information report can send an RRC connection reconfiguration message to the UE to trigger the UE to switch to a new cell or send an RRC release message to release the UE connection.
本公开针对在NR***和LTE(Long Term Evolution，长期演进)***中在配置了CHO或快速MCG链路恢复机制的情况下的UE信息上报问题提出解决方法。The present disclosure proposes solutions to the problem of UE information reporting when the CHO or fast MCG link recovery mechanism is configured in the NR system and the LTE (Long Term Evolution) system.
发明内容Summary of the invention
本公开实施例的目的在于针对在NR***和LTE***中在配置了CHO或快速MCG链路恢复机制的情况下的UE信息上报问题提出解决方法。更具体地，本公开针对在发生CHO或快速MCG链路恢复过程时UE信息丢失或不准确的问题提出了解决方法。本公开实施例提供了由用户设备执行的信息上报方法以及相应的用户设备。The purpose of the embodiments of the present disclosure is to propose solutions to the problem of UE information reporting in the NR system and the LTE system when the CHO or fast MCG link recovery mechanism is configured. More specifically, the present disclosure proposes a solution to the problem of UE information loss or inaccuracy when the CHO or fast MCG link recovery process occurs. The embodiments of the present disclosure provide an information reporting method executed by user equipment and corresponding user equipment.
根据本公开的第一方面，提出了一种由用户设备执行的信息上报方法，是在用户设备UE上实现的用于条件切换过程的UE信息上报方法，包括如下步骤：条件切换监测和执行步骤，UE接收包含切换执行条件的条件切换命令，保存条件切换配置，并基于切换执行条件的配置来检测所述切换执行条件是否满足，若所述切换执行条件满足，则UE根据所保存的条件切换配置执行到对应的条件切换目标小区的切换；条件切换完成步骤，UE成功完成条件切换；信息上报步骤，若UE配置了UE信息上报，且若UE在条件切换过程对应的切换执行条件满足之前的一段时间内发送过UE信息上报消息，则UE发起向目标小区的UE信息上报消息的发送。According to the first aspect of the present disclosure, an information reporting method performed by a user equipment is proposed, which is a UE information reporting method implemented on the user equipment UE for a conditional handover process, including the following steps: conditional handover monitoring and execution steps , The UE receives the conditional switching command containing the switching execution condition, saves the conditional switching configuration, and detects whether the switching execution condition is satisfied based on the configuration of the switching execution condition, and if the switching execution condition is satisfied, the UE switches according to the saved condition Configure to perform handover to the target cell of the corresponding conditional handover; the conditional handover completes the step, the UE successfully completes the conditional handover; the information reporting step, if the UE is configured for UE information reporting, and if the UE is in the conditional handover process, the corresponding handover execution conditions meet the previous If the UE information report message is sent within a period of time, the UE initiates the sending of the UE information report message to the target cell.
在上述的由用户设备执行的信息上报方法中，优选的是，所述成功完成条件切换包括以下的一种或多种：向下层递交了用于向切换的目标小区响应切换命令的响应消息以发送该消息；成功发送了用于向 切换的目标小区响应切换命令的响应消息；媒体介入控制MAC层成功完成用于接入目标小区的随机接入过程；在配置了跳过随机接入信道RACH时，MAC层指示成功接收到了以UE的无线网络临时标识RNTI加扰的物理下行控制信道PDCCH。In the above-mentioned information reporting method performed by the user equipment, preferably, the successful completion of the conditional handover includes one or more of the following: a response message for responding to the handover command to the target cell of the handover is delivered to the lower layer. Send the message; successfully send the response message used to respond to the handover command to the handover target cell; the media intervention control MAC layer successfully completes the random access process for accessing the target cell; when the random access channel RACH is configured to skip At this time, the MAC layer indicates that it has successfully received the physical downlink control channel PDCCH scrambled with the UE's wireless network temporary identification RNTI.
在上述的由用户设备执行的信息上报方法中，优选的是，所述条件切换过程对应的切换执行条件满足之前包括以下的一种或多种：所保存的条件切换配置中的一个目标小区所对应的切换条件满足之前；UE根据所保存的条件切换配置执行到一个目标小区的切换之前；UE接入到一个条件切换目标小区之前。In the above-mentioned information reporting method performed by the user equipment, preferably, the handover execution condition corresponding to the conditional handover process includes one or more of the following before being satisfied: a target cell location in the saved conditional handover configuration Before the corresponding handover condition is met; before the UE performs handover to a target cell according to the saved conditional handover configuration; before the UE accesses a conditional handover target cell.
在上述的由用户设备执行的信息上报方法中，优选的是，所述信息上报步骤执行的条件还包括：UE被配置了条件切换，即UE上有保存的条件切换配置。In the above-mentioned information reporting method performed by the user equipment, preferably, the condition for performing the information reporting step further includes: the UE is configured with conditional switching, that is, there is a saved conditional switching configuration on the UE.
在上述的由用户设备执行的信息上报方法中，优选的是，当所述UE信息为设备内共存IDC指示时，若UE被配置了向网络侧提供IDC指示，且若UE在所述条件切换过程对应的切换执行条件满足之前的一段时间内发送过包含IDC指示信息的无线资源控制RRC消息，则UE向目标小区发起包含IDC指示信息的RRC消息的发送；当所述UE信息为功率选择指示PPI、过热辅助信息、半静态调度SPS辅助信息、时延预算报告或最大带宽选择指示时，若UE被配置了向网络侧提供PPI、过热辅助信息、SPS辅助信息、时延预算报告或最大带宽选择指示，且若UE在所述条件切换过程对应的切换执行条件满足之前的一段时间内发送过包含PPI、过热辅助信息、SPS辅助信息、时延预算报告或最大带宽选择指示的RRC消息，则UE向目标小区发起包含对应的UE信息的RRC消息的发送；当所述UE信息为多媒体广播多播业务MBMS兴趣指示信息时，若主小区广播了用于MBMS的***信息块，且若UE在所述条件切换过程对应的切换执行条件满足之前的一段时间内发送过包含MBMS兴趣指示的RRC消息，则UE确定其感兴趣的MBMS频率集合和/或感兴趣的MBMS服务集合，并发起包含MBMS兴趣指示的RRC消息；当所述UE信息为边缘通信sidelink信息时，若主小区广播了用于sidelink通信或sidelink发现或车联网V2X sidelink通信的***信息块，且若UE在所述条件切换过 程对应的切换执行条件满足之前的一段时间内发送过用于指示其sidelink通信或sidelink发现或V2X sidelink通信相关与目标主小区相关联的参数发生改变的sidelink UE信息的RRC消息，则UE向目标小区发起包含sidelink UE信息的RRC消息的发送。In the above-mentioned information reporting method performed by the user equipment, it is preferable that when the UE information is an IDC indication for in-device coexistence, if the UE is configured to provide an IDC indication to the network side, and if the UE switches under the condition The handover execution condition corresponding to the process satisfies the radio resource control RRC message containing IDC indication information in the previous period of time, and the UE initiates the transmission of the RRC message containing IDC indication information to the target cell; when the UE information is a power selection indication When PPI, overheating assistance information, semi-persistent scheduling SPS assistance information, delay budget report, or maximum bandwidth selection instruction, if the UE is configured to provide PPI, overheating assistance information, SPS assistance information, delay budget report or maximum bandwidth to the network side Selection indication, and if the UE has sent an RRC message containing PPI, overheating assistance information, SPS assistance information, time delay budget report, or maximum bandwidth selection indication within a period of time before the handover execution conditions corresponding to the conditional handover process are met, then The UE initiates the sending of an RRC message containing the corresponding UE information to the target cell; when the UE information is multimedia broadcast multicast service MBMS interest indication information, if the primary cell broadcasts the system information block for MBMS, and if the UE is in If the handover execution condition corresponding to the conditional handover process is satisfied, the RRC message containing the MBMS interest indication has been sent within a period of time, and the UE determines the MBMS frequency set and/or the MBMS service set that it is interested in, and initiates the inclusion of MBMS Interest indication RRC message; when the UE information is edge communication sidelink information, if the primary cell broadcasts a system information block for sidelink communication or sidelink discovery or car networking V2X sidelink communication, and if the UE is in the conditional switching process If the corresponding handover execution condition is met within a period of time before it has sent an RRC message indicating its sidelink communication or sidelink discovery or V2X sidelink communication related parameters associated with the target primary cell sidelink UE information has changed, then the UE sends to the target cell Initiate the sending of RRC messages containing sidelink UE information.
根据本公开的第二方面，提出了一种由用户设备执行的信息上报方法，是在UE上实现的用于无线链路失败RLF后的RRC连接恢复过程中的UE信息上报方法，包括如下步骤：无线链路监测步骤，UE监测到发生无线链路失败RLF；无线链路恢复步骤，若UE被配置了快速主小区组MCG链路失败恢复机制，则UE发起MCG失败指示过程，所述过程包括生成用于指示MCG失败的RRC消息，递交给下层以发送该消息；信息上报步骤，若UE在检测到RLF之前的一段时间内向网络侧发送过用于上报UE信息的RRC消息，则UE向网络侧发起所述RRC消息的发送。According to the second aspect of the present disclosure, an information reporting method performed by a user equipment is proposed, which is implemented on the UE for the UE information reporting method in the RRC connection recovery process after a radio link failure RLF, including the following steps : Radio link monitoring step, the UE detects that the radio link failure RLF occurs; the radio link recovery step, if the UE is configured with the fast primary cell group MCG link failure recovery mechanism, the UE initiates the MCG failure indication process, the process Including generating an RRC message for indicating MCG failure, and submitting it to the lower layer to send the message; the information reporting step, if the UE has sent an RRC message for reporting UE information to the network within a period of time before detecting RLF, the UE will The network side initiates the sending of the RRC message.
在上述的由用户设备执行的信息上报方法中，优选的是，所述用于指示MCG失败的RRC消息包含MCG链路失败指示、MCG链路失败原因、测量结果，用于告知网络侧发生了MCG的RLF。In the above-mentioned information reporting method performed by the user equipment, preferably, the RRC message used to indicate MCG failure includes an MCG link failure indication, MCG link failure reason, and measurement result, which are used to inform the network side of the occurrence MCG's RLF.
在上述的由用户设备执行的信息上报方法中，优选的是，当所述UE信息为IDC指示时，若UE被配置了向网络侧提供IDC指示，且若UE在检测到RLF之前的一段时间内发送过包含IDC指示信息的RRC消息，则UE向网络侧发起包含IDC指示信息的RRC消息的发送；当所述UE信息为PPI、过热辅助信息、SPS辅助信息、时延预算报告或最大带宽选择指示时，若UE被配置了向网络侧提供PPI、过热辅助信息、SPS辅助信息、时延预算报告或最大带宽选择指示，且若UE在检测到RLF之前的一段时间内发送过包含PPI、过热辅助信息、SPS辅助信息、时延预算报告或最大带宽选择指示的RRC消息，则UE向网络侧发起包含对应的UE信息的RRC消息的发送；当所述UE信息为MBMS兴趣指示信息时，若主小区广播了用于MBMS的***信息块，且若UE在检测到RLF之前的一段时间内发送过包含MBMS兴趣指示的RRC消息，则UE确定其感兴趣的MBMS频率集合和/或感兴趣的MBMS服务集合，并向网络侧发起包含MBMS兴趣指示的RRC消息的发送；当所述UE信息为sidelink信息时，若主小 区广播了用于sidelink通信或sidelink发现或V2X sidelink通信的***信息块，且若UE在检测到RLF之前的一段时间内发送过用于指示其sidelink通信或sidelink发现或V2X sidelink通信相关与主小区相关联的参数发生改变的sidelink UE信息的RRC消息，则UE向网络侧发起包含sidelink UE信息的RRC消息的发送。In the above-mentioned information reporting method performed by the user equipment, it is preferable that when the UE information is an IDC indication, if the UE is configured to provide an IDC indication to the network side, and if the UE is a period of time before the RLF is detected If an RRC message containing IDC indication information is sent within, the UE initiates the sending of an RRC message containing IDC indication information to the network side; when the UE information is PPI, overheating assistance information, SPS assistance information, delay budget report or maximum bandwidth When selecting an indication, if the UE is configured to provide PPI, overheating assistance information, SPS assistance information, delay budget report, or maximum bandwidth selection indication to the network side, and if the UE has sent a PPI, a If the overheating assistance information, the SPS assistance information, the delay budget report or the RRC message indicating the maximum bandwidth selection indication are used, the UE initiates the transmission of the RRC message containing the corresponding UE information to the network side; when the UE information is MBMS interest indication information, If the primary cell broadcasts the system information block for MBMS, and if the UE sends an RRC message containing the MBMS interest indicator within a period of time before detecting RLF, the UE determines the MBMS frequency set and/or interest it is interested in The MBMS service set of the network, and initiates the transmission of RRC messages containing MBMS interest indications to the network side; when the UE information is sidelink information, if the primary cell broadcasts a system information block for sidelink communication or sidelink discovery or V2X sidelink communication , And if the UE has sent an RRC message indicating its sidelink communication or sidelink discovery or V2X sidelink communication related parameters associated with the primary cell within a period of time before RLF is detected, the UE will report to the network The side initiates the sending of an RRC message containing sidelink UE information.
在上述的由用户设备执行的信息上报方法中，优选的是，所述在检测到RLF之前的一段时间是发送用于指示MCG失败的RRC消息之前的一段时间、或者触发MCG失败指示过程之前的一段时间。In the foregoing information reporting method performed by the user equipment, preferably, the period of time before the RLF is detected is a period of time before the RRC message for indicating MCG failure is sent, or before the MCG failure indication procedure is triggered a period of time.
根据本公开的第三方面，提出了一种用户设备，包括：处理器；以及存储器，所述存储器上存储有指令，所述指令在由所述处理器运行时，使所述用户设备执行上文所描述的信息上报方法。According to a third aspect of the present disclosure, a user equipment is proposed, which includes: a processor; and a memory on which instructions are stored. When the instructions are executed by the processor, the user equipment executes the The information reporting method described in the article.
根据本公开所涉及的由用户设备执行的信息上报方法以及相应的用户设备，UE在条件切换过程中，能够上报更准确的UE信息，避免出现上报的UE信息过时或出现UE信息漏报的情况，从而更好地保证对应业务的服务质量和服务连续性；UE在使用快速MCG链路失败恢复机制时，能够上报更准确的UE信息，或避免出现上报的UE信息过时或出现UE信息漏报的情况，从而更好地保证对应业务在无线链路恢复过程前后的服务质量和服务连续性。According to the information reporting method performed by the user equipment and the corresponding user equipment involved in the present disclosure, the UE can report more accurate UE information during the condition switching process, avoiding the situation that the reported UE information is out of date or UE information is underreported , So as to better ensure the service quality and service continuity of the corresponding business; when the UE uses the fast MCG link failure recovery mechanism, it can report more accurate UE information, or avoid the reported UE information being out of date or UE information underreporting In order to better guarantee the service quality and service continuity of the corresponding service before and after the wireless link recovery process.
附图说明Description of the drawings
为了更完整地理解本公开及其优势，现在将参考结合附图的以下描述，其中：For a more complete understanding of the present disclosure and its advantages, reference will now be made to the following description in conjunction with the accompanying drawings, in which:
图1是LTE/NR***中的一般切换过程的流程图。Figure 1 is a flowchart of a general handover process in an LTE/NR system.
图2是本公开的实施例1涉及的由用户设备UE执行的信息上报方法的流程图。FIG. 2 is a flowchart of an information reporting method performed by a user equipment UE according to Embodiment 1 of the present disclosure.
图3是本公开的实施例2涉及的由用户设备UE执行的信息上报方法的流程图。FIG. 3 is a flowchart of an information reporting method performed by a user equipment UE according to Embodiment 2 of the present disclosure.
图4是本公开涉及的用户设备UE的简要结构框图。Fig. 4 is a brief structural block diagram of the user equipment UE involved in the present disclosure.
在附图中，相同或相似的结构均以相同或相似的附图标记进行标识。In the drawings, the same or similar structures are marked with the same or similar reference signs.
具体实施方式Detailed ways
根据结合附图对本公开示例性实施例的以下详细描述，本公开的其它方面、优势和突出特征对于本领域技术人员将变得显而易见。According to the following detailed description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, other aspects, advantages, and prominent features of the present disclosure will become apparent to those skilled in the art.
在本公开中，术语“包括”和“含有”及其派生词意为包括而非限制；术语“或”是包含性的，意为和/或。In the present disclosure, the terms "including" and "containing" and their derivatives mean including but not limiting; the term "or" is inclusive, meaning and/or.
在本说明书中，下述用于描述本公开原理的各种实施例只是说明，不应该以任何方式解释为限制公开的范围。参照附图的下述描述用于帮助全面理解由权利要求及其等同物限定的本公开的示例性实施例。下述描述包括多种具体细节来帮助理解，但这些细节应认为仅仅是示例性的。因此，本领域技术人员应认识到，在不背离本公开的范围和精神的情况下，可以对本文中描述的实施例进行多种改变和修改。此外，为了清楚和简洁起见，省略了公知功能和结构的描述。此外，贯穿附图，相同参考数字用于相似功能和操作。In this specification, the following various embodiments for describing the principle of the present disclosure are merely illustrative, and should not be construed as limiting the scope of the disclosure in any way. The following description with reference to the accompanying drawings is used to help a comprehensive understanding of exemplary embodiments of the present disclosure defined by the claims and their equivalents. The following description includes a variety of specific details to help understanding, but these details should be considered only exemplary. Therefore, those skilled in the art should recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. In addition, for clarity and brevity, descriptions of well-known functions and structures are omitted. In addition, throughout the drawings, the same reference numerals are used for similar functions and operations.
下文以长期演进***(Long Term Evolution，LTE)/NR移动通信***及其后续的演进版本作为示例应用环境，具体描述了根据本公开的多个实施方式。然而，需要指出的是，本公开不限于以下实施方式，而是可适用于更多其它的无线通信***。若无特殊说明，在本公开中，小区和基站的概念可以互相替换；LTE***也用于指代5G及其之后的LTE***(如称为eLTE***，或者可以连接到5G核心网的LTE***)，同时LTE可以用演进的通用陆地无线接入(Evolved Universal Terrestrial Radio Access，E-UTRA)或演进的通用陆地无线接入网E-UTRAN来替换。在本公开中，切换指的是网络侧发起的主小区的变更，包含小区间的主小区变更也包含小区内的主小区变更，即UE的主小区从源小区变更为目标小区，其中源小区和目标小区可以是同一个小区也可以是不同的小区，在此过程中，用于接入层安全的秘钥或安全算法也随之更新。源小区也可称为源基站，也可以是源光束(beam)、源传输点(Transmission point，TRP)，目标小区也可称为目标基站，也可以是目标光束、目标传输点。源小区指的是切换过程发起 之前所连接的为UE服务的小区即向UE发送包含切换命令的RRC消息的小区。目标小区指的是切换过程成功完成之后UE所连接的为UE服务的小区，或者说是切换命令中所包含的目标小区标识所指示的小区。本公开所述切换命令用于触发UE执行切换，在NR***中是包含同步重配置(Reconfigurationwithsync)信息元素的RRC重配置消息，更进一步地，是包含用于主小区组(Master Cell Group，MCG)的同步重配置(Reconfigurationwithsync)信息元素的RRC重配置消息，所以NR中切换也可称作MCG同步重配置。在LTE***中是包含移动控制信息(MobilityControlInformation)信息元素的RRC连接重配置消息。其中，所述同步重配置信息元素或移动控制信息信息元素包含目标小区的配置信息，例如目标小区标识、目标小区频率、目标小区的公共配置如***信息、UE接入到目标小区所使用的随机接入配置、UE在目标小区的安全参数配置、UE在目标小区的无线承载配置等。为便于描述，本公开中RRC重配置消息和RRC连接重配置消息等同；同理，其响应消息RRC重配置完成消息和RRC连接重配置完成消息等同。切换命令和包含切换命令的RRC消息等同，指触发UE执行切换的RRC消息或RRC消息中的配置。切换配置指切换命令中的全部或部分配置。取消、释放、删除、清空和清除等可以替换。执行、使用和应用可替换。配置和重配置可以替换。监测(monitor)和检测(detect)可替换。条件切换命令和条件切换配置可替换。Hereinafter, taking the Long Term Evolution (LTE)/NR mobile communication system and its subsequent evolution versions as an example application environment, multiple embodiments according to the present disclosure are described in detail. However, it should be pointed out that the present disclosure is not limited to the following embodiments, but is applicable to more other wireless communication systems. Unless otherwise specified, in this disclosure, the concepts of cell and base station can be replaced with each other; LTE system is also used to refer to 5G and subsequent LTE systems (such as eLTE systems, or LTE systems that can be connected to the 5G core network) ), and LTE can be replaced with Evolved Universal Terrestrial Radio Access (E-UTRA) or E-UTRAN. In the present disclosure, handover refers to the change of the primary cell initiated by the network side, including the primary cell change between cells and the primary cell change 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 It can be the same cell as the target cell or a different cell. In this process, the secret key or security algorithm used for access layer security is also updated. The source cell may also be referred to as a source base station, and may also be a source beam (beam) or a source transmission point (TRP). The target cell may also be referred to as a target base station, or a target beam or a target transmission point. The source cell refers to the cell that is connected to serve the UE before the handover process is initiated, that is, the cell that sends the RRC message containing the handover command to the UE. The target cell refers to the cell that the UE is connected to and serves 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 disclosure is used to trigger the UE to perform handover. In the NR system, it is an RRC reconfiguration message containing a synchronization reconfiguration (Reconfigurationwithsync) information element, and furthermore, it contains a master cell group (MCG). ) Is the RRC reconfiguration message of the synchronization reconfiguration (Reconfigurationwithsync) information element, so the handover in the NR can also be referred to as the MCG synchronization reconfiguration. In the LTE system, it is an RRC connection reconfiguration message containing an information element of mobility control information (MobilityControlInformation). Wherein, the synchronization reconfiguration information element or the mobile control information information element contains the configuration information of the target cell, such as the target cell identity, the target cell frequency, the common configuration of the target cell, such as system information, and the random information used by the UE to access the target cell. Access configuration, UE security parameter configuration in the target cell, UE radio bearer configuration in the target cell, etc. For ease of description, the RRC reconfiguration message in the present disclosure is equivalent to the RRC connection reconfiguration message; similarly, the response message RRC reconfiguration complete message is equivalent to the RRC connection reconfiguration complete 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 the handover. Switch configuration refers to all or part of the configuration in the switch command. Cancel, release, delete, empty and clear can be replaced. Execution, use and application can be replaced. Configuration and reconfiguration can be replaced. Monitoring (monitor) and detection (detect) can be replaced. Conditional switching commands and conditional switching configurations can be replaced.
在本公开中，UE在收到包含切换命令的无线资源控制(Radio Resource Control，RRC)消息之后，在发起切换过程之前仍然保持和源基站的通信包括数据传输，以进一步减小数据传输中断的时间。In the present disclosure, after the UE receives a radio resource control (Radio Resource Control, RRC) message containing a handover command, it still maintains the communication with the source base station including data transmission before initiating the handover process, so as to further reduce the interruption of data transmission. time.
下述先简要描述本公开实施例所涉及到的在先技术。The following briefly describes the prior art involved in the embodiments of the present disclosure.
现有机制中的一般切换过程：The general switching process in the existing mechanism:
首先简要介绍LTE/NR***中的一般切换过程。连接态的用户移动性主要通过切换过程来实现，所述切换即指的是处于RRC连接态的UE变更服务小区的过程。流程参见图1，简述如下：First, briefly introduce the general handover process in the LTE/NR system. User mobility in the connected state is mainly achieved through a handover process, which refers to a process in which a UE in an RRC connected state changes a serving cell. Refer to Figure 1 for the process, which is briefly described as follows:
阶段1：测量阶段。基站向用户设备(User Equipment，UE)下发测量配置；UE基于该测量配置对服务小区或邻小区所对应的无线链路进行测量，当满足所配置的测量上报条件时，UE向基站发送测量报告。测量阶段不是必须的，在基站在没有有效测量报告的时候也可以盲切换UE。Phase 1: Measurement phase. The base station sends the measurement configuration to the User Equipment (UE); the UE measures the radio link corresponding to the serving cell or neighboring cell based on the measurement configuration, and when the configured measurement reporting conditions are met, the UE sends the measurement to the base station report. The measurement phase is not necessary, and the UE can be handed over blindly when the base station does not have a valid measurement report.
阶段2：切换准备阶段。基站结合收到的测量报告以及其他因素如基站负载等决定是否为该UE触发切换。若确定对该UE触发切换，则源基站通过向目标基站发送切换请求消息来发起切换准备过程。目标基站根据切换请求消息中UE的上下文和目标基站的可用资源等因素决定是否接受对该UE的本次切换请求，如果可以，则向源基站回复切换确认消息，其中切换确认消息中包含一条基站间(inter-node)的RRC消息即切换命令。Phase 2: Handover preparation phase. The base station determines whether to trigger a handover for the UE based on the received measurement report and other factors such as base station load. If it is determined to trigger a handover for the UE, the source base station initiates the handover preparation process by sending a handover request message to the target base station. The target base station decides whether to accept this handover request for the UE according to the UE context in the handover request message and the available resources of the target base station. If possible, it will reply to the source base station with a handover confirmation message, where the handover confirmation message contains a base station Inter-node RRC messages are handover commands.
阶段3：切换执行阶段。源基站将切换命令下发给UE，并开始将该UE的数据转发给目标基站。收到切换命令的UE立即应用该切换命令的配置执行切换，通过随机接入过程接入到目标基站，向目标基站发送确认消息。其中，随机接入过程不是必须的。Phase 3: Switch execution phase. The source base station issues a handover command to the UE and starts to forward the UE's data to the target base station. The UE that receives the handover command immediately applies the configuration of the handover command to perform handover, accesses the target base station through a random access process, and sends a confirmation message to the target base station. Among them, the random access process is not necessary.
阶段4：切换完成阶段。目标基站确认UE成功接入后，向源基站发送切换完成消息。源基站据此可以释放其上所保存的UE上下文。Phase 4: Handover completion phase. After the target base station confirms that the UE has successfully accessed, it sends a handover complete message to the source base station. The source base station can release the UE context stored on it accordingly.
从上可见，当前***中的切换流程会引发数据传输的中断，Release 14版本的LTE***中，对于切换流程的优化如无随机接入过程的切换，断开前仍连接(Make Before Break，MBB)等都旨在降低切换过程中的数据中断时间。It can be seen from the above that the handover process in the current system will cause the interruption of data transmission. In the LTE system of Release 14, the optimization of the handover process, such as handover without random access process, will still connect before disconnection (Make Before Break, MBB). ) And so on are designed to reduce the data interruption time during the switching process.
基于条件的切换：Condition-based switching:
其次简述基于条件的切换。如前所述在Release 16技术需求中，要求在移动切换过程中尽可能满足“0ms”的数据中断时延，并提高切换的鲁棒性以达到NR中的无缝切换的移动性需求。在当前的切换过程中，一种导致切换失败而造成较长时间数据传输中断的原因是切换命令下发的不及时导致的切换命令接收失败。对于该问题，一种可行的方法是基于条件的切换(简称之条件切换)。在条件切换中，设置 相对保守的测量报告门限，使得基站提前获取测量结果，并根据测量结果和选定的目标基站提前执行切换准备，这样基站可以在真正的切换条件(相对于所述保守的测量报告门限)满足之前，提前将切换命令下发给UE，其中携带UE执行切换的条件。不同于LTE现有切换机制，UE收到条件切换命令后，并不会立即执行切换，而是保存所接收到的切换命令配置，并根据切换命令消息中携带的切换执行条件开始监测源小区的链路质量或目标小区的链路质量。只有当监测到所配置的切换执行条件满足时，UE才开始执行所保存的切换命令，接入到目标小区(即根据所保存的对应于所述满足条件的目标小区的条件切换配置，接入到所述目标小区)。针对上述切换机制，本公开中称之条件切换，但并不限制其命名，也可以称提前切换命令的切换机制、预先切换、早切换准备、包含切换执行条件的切换等。Next, we briefly describe the condition-based switching. As mentioned above, in the technical requirements of Release 16, it is required to meet the "0ms" data interruption delay as much as possible during the mobile handover process, and to improve the robustness of handover to meet the mobility requirements of seamless handover in NR. In the current handover process, one of the reasons that cause the handover to fail and cause the data transmission to be interrupted for a long time is the handover command reception failure caused by the untimely issuance of the handover command. For this problem, one feasible method is condition-based switching (conditional switching for short). In 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 conditions under real handover conditions (relative to the conservative Before the measurement report threshold is met, the handover command is issued to the UE in advance, which carries the conditions for the UE to perform the handover. Different from the existing handover mechanism of LTE, after the UE receives the conditional handover command, it does not immediately execute the handover, but saves the received handover command configuration, and starts monitoring the source cell according to the handover execution conditions carried in the handover command message. Link quality or link quality of the target cell. Only when it is monitored that the configured handover execution conditions are met, the UE starts to execute the saved handover command and access to the target cell (that is, according to the saved conditional handover configuration corresponding to the target cell that meets the conditions, access To the target cell). Regarding the above-mentioned switching mechanism, the present disclosure refers to conditional switching, but does not limit its naming. It can also be referred to as the switching mechanism of the advance switching command, the advance switching, the early switching preparation, the switching including the switching execution conditions, and the like.
现有机制中的链路恢复机制：Link recovery mechanism in existing mechanisms:
再次，介绍一下现有机制中的链路恢复机制。在现有机制中，UE在发生主小区组的RLF时，会发起RRC连接重建立过程来重建/恢复与网络侧的连接。在发起的RRC连接重建立过程中，UE先执行小区选择过程来选择一个重建小区，并向其发送RRC连接重建立请求消息。当收到用于响应RRC连接重建立请求消息的RRC连接重建立消息时，UE执行该消息所包含的RRC配置，并向网络侧返回RRC连接重建立完成消息，成功结束RRC连接重建立过程，恢复与网络侧的RRC连接。Once again, introduce the link recovery mechanism in the existing mechanism. In the existing mechanism, when the RLF of the primary cell group occurs, the UE initiates an RRC connection re-establishment process to reestablish/restore the connection with the network side. In the initiated RRC connection re-establishment process, the UE first performs a cell selection process to select a re-established cell, and sends an RRC connection re-establishment request message to it. When receiving the RRC connection re-establishment message in response to the RRC connection re-establishment request message, the UE executes the RRC configuration contained in the message, and returns an RRC connection re-establishment complete message to the network side, and successfully ends the RRC connection re-establishment process. Restore the RRC connection with the network side.
快速MCG链路恢复机制：Fast MCG link recovery mechanism:
3GPP RAN2工作组目前在一个工作项目：双链接和载波聚合增强项目(参见文献RP-190452中)讨论了一种快速MCG链路恢复机制。所谓“快速”是相对于现有链路恢复机制(即通过RRC连接重建立过程来恢复链路连接)而言的。在快速MCG链路恢复机制中，当UE的MCG发生RLF时，若UE的辅小区组(Secondary Cell Group，SCG)链路质量是好的(即未发生RLF或定时器T310未在运行，或SCG不是被挂起状态(not suspended))，此时，MCG和SCG都不在被挂起 (或称中断)状态，则UE发起MCG失败(信息)流程，通过SCG链路(如***信令无线承载split SRB或第三信令无线承载SRB3)将MCG链路失败的信息报告给主基站，而不是直接触发RRC连接重建立过程。在MCG失败(信息)流程中，UE会挂起所有SRB和DRB对应的MCG侧的传输，还可以重置MCG对应的MAC实体。收到MCG链路失败信息报告的主基站可以向UE发送RRC连接重配置消息(即切换命令)来触发UE执行切换或者发送RRC释放消息来释放UE的连接。这种快速MCG链路恢复机制/过程可以应用于被配置了MR-DC(Multi-Radio access technology Dual Connectivity)的情况，比如NE-DC(NR E-UTRA Dual Connectivity)、EN-DC(E-UTRA NR Dual Connectivity)、NR DC(New Radio Dual Connectivity)、NGEN-DC(Next Generation-radio access network E-UTRA NR Dual Connectivity)、LTE DC(intra-E-UTRAN DC)等。所述快速MCG链路恢复机制在本公开中并不限定其名称，如也可以称通过SCG的MCG恢复、MCG失败过程、MCG失败信息、增强的MCG链路恢复等。The 3GPP RAN2 working group is currently working on a project: the dual link and carrier aggregation enhancement project (see document RP-190452) to discuss a fast MCG link recovery mechanism. The so-called "fast" is relative to the existing link recovery mechanism (that is, the link connection is restored through the RRC connection re-establishment process). In the fast MCG link recovery mechanism, when RLF occurs in the MCG of the UE, if the secondary cell group (SCG) link quality of the UE is good (that is, RLF does not occur or the timer T310 is not running, or SCG is not suspended (not suspended). At this time, neither MCG nor SCG is suspended (or interrupted), and the UE initiates the MCG failure (information) process through the SCG link (such as split signaling wireless The bearer split SRB or the third signaling radio bearer SRB3) reports the MCG link failure information to the primary base station, instead of directly triggering the RRC connection re-establishment process. In the MCG failure (information) procedure, the UE will suspend all transmissions on the MCG side corresponding to the SRB and DRB, and can also reset the MAC entity corresponding to the MCG. The primary base station that receives the MCG link failure information report can send an RRC connection reconfiguration message (ie, handover command) to the UE to trigger the UE to perform handover or send an RRC release message to release the UE's connection. This fast MCG link recovery mechanism/process can be applied to the situation where MR-DC (Multi-Radio access technology Dual Connectivity) is configured, such as NE-DC (NR E-UTRA Dual Connectivity), EN-DC (E- UTRA NR Dual Connectivity), NR DC (New Radio Dual Connectivity), NGEN-DC (Next Generation-radio access network E-UTRA NR Dual Connectivity), LTE DC (intra-E-UTRAN DC), etc. The name of the fast MCG link recovery mechanism is not limited in the present disclosure. For example, it can also be called MCG recovery through SCG, MCG failure process, MCG failure information, enhanced MCG link recovery, etc.
现有机制中的UE信息上报：UE information reporting in existing mechanisms:
本公开中所涉及到的UE信息上报包含下述几种情况。The UE information reporting involved in this disclosure includes the following situations.
对于支持多媒体广播多播业务(Muiltmedia Broadcast Multicast Service，MBMS)的UE，可以通过RRC消息(MBMS兴趣指示消息(MBMSinterestindication))向网络侧通知该UE正在接收的MBMS业务或者感兴趣的MBMS业务，还可以告知网络侧MBMS业务和单播业务接收的优先级等。这样做的目的是使得网络侧在获知了这些信息后在对UE的调度以及移动性进行决策时可以考虑UE的MBMS业务的需求，以保证MBMS业务的连续性。所述RRC消息中可以包含UE正在接收或感兴趣的MBMS业务频率信息、用于指示UE是否认为MBMS接收业务优先于单播接收的MBMS优先级信息、UE正在接收或者有兴趣接收的MBMS服务信息(如临时移动组标识(Temporary Mobile Group Identity，TMGI))等。For UEs supporting multimedia broadcast multicast services (Muiltmedia Broadcast Multicast Service, MBMS), RRC messages (MBMS interest indication messages (MBMS interest indication)) can be used to notify the network side of the MBMS services that the UE is receiving or the MBMS services of interest. It can inform the network side about the priority of MBMS service and unicast service reception. The purpose of this is to enable the network side to consider the UE's MBMS service requirements when making decisions on UE scheduling and mobility after learning this information, so as to ensure the continuity of the MBMS service. The RRC message may include the frequency information of the MBMS service that the UE is receiving or is interested in, the MBMS priority information used to indicate whether the UE considers the MBMS service to be received prior to unicast reception, and the MBMS service information that the UE is receiving or is interested in receiving. (Such as Temporary Mobile Group Identity (TMGI)) etc.
对于支持边缘通信(sidelink)和车联网(Vehicle-to-Everything， V2X)的UE，可以通过RRC消息(sidelinkUEinformation消息)向网络侧指示其对sidelink通信(communication)、sidelink发现(discovery)或V2X通信的接收感兴趣或者不再感兴趣。UE也可以通过所述RRC消息向网络侧请求用于sidelink通信或发现或V2X通信的资源分配或资源释放，也可以通过所述RRC消息向网络侧上报来自异频/异网小区(inter-frequency/inter-PLMN(Public Land Mobile Network))***信息的sidelink发现的相关参数。网络侧可以基于UE上报的上述信息对UE进行相对应的资源管理、切换目标小区确定等，以确保UE的sidelink业务和V2X业务的服务质量和服务连续性。For UEs that support edge communication (sidelink) and vehicle-to-everything (V2X), the RRC message (sidelinkUEinformation message) can be used to indicate to the network side its communication, sidelink discovery, or V2X communication. Are interested or no longer interested in receiving. The UE may also request resource allocation or resource release for sidelink communication or discovery or V2X communication to the network side through the RRC message, and may also report information from inter-frequency/inter-network cells to the network side through the RRC message. /inter-PLMN (Public Land Mobile Network)) related parameters found by sidelink of system information. The network side can perform corresponding resource management and handover target cell determination for the UE based on the above-mentioned information reported by the UE, so as to ensure the service quality and service continuity of the sidelink service and the V2X service of the UE.
对于支持设备内共存(In-Device Coexistence，IDC)指示信息上报的UE，可以通过RRC消息(设备内共存指示消息，InDeviceCoexIndication)向网络侧告知其在所经历的IDC问题或所经历的IDC问题发生改变，还可以向网络侧提供一些信息来解决所述IDC问题，如所受影响的载波频率信息、所建议的时分复用辅助信息等。For UEs that support the reporting of in-device coexistence (In-Device Coexistence, IDC) indication information, they can inform the network side of the IDC problems they have experienced or the occurrence of IDC problems they have experienced through RRC messages (InDeviceCoexIndication). Change, you can also provide some information to the network side to solve the IDC problem, such as the affected carrier frequency information, suggested time division multiplexing auxiliary information, etc.
此外，对于支持功率选择指示(Power Preference Indication，PPI)或半静态调度(Semi-Persistence Scheduling，SPS)辅助信息提供或时延预算上报(delay budget report)或过热(overheating)辅助信息上报的UE，还可以通过RRC消息(UEassistanceInformation)向网络侧告知其节能选择、SPS辅助信息、最大物理信道带宽配置选择、过热辅助信息或包含Uu接口接收时延期望的增加或降低的时延预算报告等。网络侧可以基于这些辅助信息对UE的配置进行调整，来满足UE的需求。In addition, for UEs that support power selection indication (Power Preference Indication, PPI) or semi-persistence (Semi-Persistence Scheduling, SPS) auxiliary information provision or delay budget reporting (delay budget report) or overheating (overheating) auxiliary information reporting, The network can also be notified of its energy saving options, SPS assistance information, maximum physical channel bandwidth configuration options, overheating assistance information, or a delay budget report containing the expected increase or decrease of the Uu interface reception delay through the RRC message (UEassistanceInformation). The network side can adjust the configuration of the UE based on the auxiliary information to meet the requirements of the UE.
为了便于描述，上述UE向网络侧上报的信息在本公开中统称为UE信息，所对应的用于上报UE信息的RRC消息统称为UE信息上报消息。For ease of description, the information reported by the UE to the network side is collectively referred to as UE information in this disclosure, and the corresponding RRC messages used for reporting UE information are collectively referred to as UE information reporting messages.
在切换时，当切换成功完成时，若UE被配置了向网络侧提供PPI、过热辅助信息、SPS辅助信息、时延预算报告或最大带宽选择指示，则UE判断是否在收到切换命令之前的一秒时间内发送过UE辅助信 息UEassistanceinformation消息，若是，则UE向成功切换后的目标小区发起UE辅助信息UEassistanceinformation消息的发送。若UE被配置了向网络侧提供IDC指示，则UE判断是否在收到切换命令之前的一秒时间内发送过设备内共存指示InDeviceCoexIndication消息，若是，则UE向切换成功的目标小区发起设备内共存指示InDeviceCoexIndication消息的发送。若主小区广播了用于MBMS的***信息块(如SIB15)，则UE判断是否在收到切换命令之前的一秒时间内发送过MBMS兴趣指示MBMSInterestIndication消息，若是，则UE确定其感兴趣的MBMS频率集合和/或感兴趣的MBMS服务集合，并发起MBMS兴趣指示MBMSInterestIndication消息。若主小区广播了用于sidelink通信或sidelink发现或V2X sidelink通信的***信息块(如分别对应于SIB18、SIB19、SIB21)，则UE判断其是否在收到切换命令之前的一秒时间内发送过用于指示其sidelink通信或sidelink发现或V2X sidelink通信相关与目标主小区相关联的参数发生改变的边缘通信UE信息sidelinkUEInformation消息，若是，则UE向目标小区发起边缘通信UE信息sidelinkUEInformation消息的发送。这样做的目的是为了防止所述UE信息在切换过程中没有成功递送给目标小区而造成目标小区不能获得最新的UE信息。During the handover, when the handover is successfully completed, if the UE is configured to provide PPI, overheating assistance information, SPS assistance information, delay budget report or maximum bandwidth selection instruction to the network side, the UE will determine whether it is before receiving the handover command. The UE assistance information UEassistanceinformation message has been sent within one second. If so, the UE initiates the transmission of the UE assistance information UEassistanceinformation message to the target cell after the successful handover. If the UE is configured to provide an IDC indication to the network side, the UE determines whether the InDeviceCoexIndication message has been sent within one second before receiving the handover command. If so, the UE initiates the in-device coexistence to the target cell where the handover is successful Indicate the sending of InDeviceCoexIndication message. If the primary cell broadcasts a system information block for MBMS (such as SIB15), the UE determines whether it has sent the MBMS Interest Indication MBMSInterestIndication message within one second before receiving the handover command. If so, the UE determines the MBMS it is interested in Frequency set and/or MBMS service set of interest, and initiate MBMS Interest Indication MBMSInterestIndication message. If the primary cell broadcasts a system information block for sidelink communication or sidelink discovery or V2X sidelink communication (for example, corresponding to SIB18, SIB19, and SIB21 respectively), the UE determines whether it has been sent within one second before receiving the handover command An edge communication UE information sidelinkUEInformation message used to indicate that its sidelink communication or sidelink discovery or V2X sidelink communication-related parameters associated with the target primary cell have changed. If so, the UE initiates the sending of the edge communication UE information sidelinkUEInformation message to the target cell. The purpose of this is to prevent the UE information from being unsuccessfully delivered to the target cell during the handover process, causing the target cell to fail to obtain the latest UE information.
在现有机制的RRC连接重建立过程中，当UE成功完成RRC连接重建立过程后，若主小区广播了用于MBMS的***信息块(如SIB15)，则UE判断是否在监测到RLF之前的一秒时间内发送过MBMS兴趣指示MBMSInterestIndication消息，若是，则UE确定其感兴趣的MBMS频率集合和/或感兴趣的MBMS服务集合，并发起MBMS兴趣指示MBMSInterestIndication消息。若主小区广播了用于sidelink通信或sidelink发现或V2X sidelink通信的***信息块，则UE判断其是否在监测到RLF之前的一秒时间内发送过用于指示其sidelink通信或sidelink发现或V2X sidelink通信相关与主小区相关联的参数发生改变的边缘通信UE信息sidelinkUEInformation消息，若是，则UE向主小区发起边缘通信UE信息sidelinkUEInformation消息 的发送。这样做的目的是为了防止所述UE信息在RLF和RRC连接重建立过程中没有成功上报给用于重建立的主小区而造成主小区不能获得最新的UE信息。In the RRC connection re-establishment process of the existing mechanism, when the UE successfully completes the RRC connection re-establishment process, if the primary cell broadcasts the system information block for MBMS (such as SIB15), the UE determines whether the RLF is detected before The MBMS Interest Indication MBMSInterestIndication message has been sent within one second. If so, the UE determines the MBMS frequency set and/or the MBMS service set that it is interested in, and initiates the MBMS Interest Indication MBMSInterestIndication message. If the primary cell broadcasts a system information block for sidelink communication or sidelink discovery or V2X sidelink communication, the UE determines whether it has sent a message indicating its sidelink communication or sidelink discovery or V2X sidelink within one second before RLF is detected. The communication-related edge communication UE information sidelinkUEInformation message whose parameters associated with the primary cell have changed. If yes, the UE initiates the sending of the edge communication UE information sidelinkUEInformation message to the primary cell. The purpose of this is to prevent the UE information from being not successfully reported to the primary cell for re-establishment during the RLF and RRC connection re-establishment process, resulting in the primary cell being unable to obtain the latest UE information.
如前所述，在引入快速MCG失败恢复机制后，在发生RLF时，UE可能会通过从SCG接收的来自MCG的切换信令来执行的切换来恢复与网络侧的连接，而不是通过直接执行RRC连接重建立过程来恢复与网络侧的连接。按照现有机制中切换过程和RLF/RRC连接重建立过程的UE信息上报机制，这可能使得UE在监测到RLF发生前的想要上报给网络侧的UE信息，无法递送给切换后的主小区，从而造成相对应的业务如MBMS的业务连续性或服务质量造成影响。这成为本公开想要解决的问题。As mentioned earlier, after the introduction of the fast MCG failure recovery mechanism, when RLF occurs, the UE may restore the connection with the network side through the handover performed by the handover signaling from the MCG received from the SCG, instead of directly executing The RRC connection re-establishment process restores the connection with the network side. According to the UE information reporting mechanism of the handover process and the RLF/RRC connection re-establishment process in the existing mechanism, this may make the UE information that the UE wants to report to the network side before detecting the occurrence of RLF cannot be delivered to the primary cell after the handover , Thus causing the corresponding business such as MBMS business continuity or service quality to affect. This becomes a problem that the present disclosure intends to solve.
此外，按照现有机制，UE在切换完成后，若在收到切换命令之前的一秒时间内发送过UE信息上报消息，则UE向成功切换后的目标小区发起UE信息上报消息的发送。在配置了条件切换时，因为UE收到条件切换命令时可能并不会立即执行切换，这使得按照现有机制在切换成功后向目标小区上报的UE信息可能是过时的或者是出现漏报的情况。从而造成相对应的业务如MBMS的业务连续性或服务质量造成影响。这也成为本公开想要解决的问题。In addition, according to the existing mechanism, after the UE completes the handover, if the UE information report message is sent within one second before receiving the handover command, the UE initiates the sending of the UE information report message to the target cell after the successful handover. When the conditional handover is configured, because the UE may not perform the handover immediately when receiving the conditional handover command, this makes the UE information reported to the target cell after the handover succeeds according to the existing mechanism may be out of date or underreported Happening. As a result, the corresponding business such as MBMS business continuity or service quality is affected. This has also become a problem that the present disclosure wants to solve.
下述是本公开中基于上述问题在UE上执行的若干实施例。The following are several embodiments executed on the UE based on the above-mentioned problems in the present disclosure.
实施例1Example 1
该实施例提出一种在UE上实现的用于条件切换过程的UE信息上报方法。通过该实施例所述方法，UE在条件切换过程中，能够上报更准确的UE信息，避免出现上报的UE信息过时或出现UE信息漏报的情况，从而更好地保证对应业务的服务质量和服务连续性。下面，利用图2来描述该过程。This embodiment proposes a UE information reporting method implemented on the UE for the conditional handover process. Through the method described in this embodiment, the UE can report more accurate UE information during the conditional switching process, avoiding the situation that the reported UE information is out of date or the UE information is underreported, thereby better guaranteeing the service quality and the corresponding service. Service continuity. In the following, Figure 2 is used to describe the process.
步骤S201(条件切换完成步骤)：UE成功完成条件切换。Step S201 (conditional switching completion step): the UE successfully completes the conditional switching.
所述成功完成条件切换还可以有下述几种表述方式：向下层递交了用于向切换的目标小区响应切换命令的响应消息(RRC重配置完成消息)以发送该消息；(成功)发送了用于向切换的目标小区响应切换命令的响应消息(RRC重配置完成消息)；媒体介入控制(Medium Access Control，MAC)层成功完成用于接入目标小区的随机接入过程；在配置了跳过随机接入信道(Random Access Channel，RACH)时MAC层指示成功接收到了以UE的无线网络临时标识(Radio Network Temporary Identifier，RNTI)加扰的物理下行控制信道(Physical Downlink Control Channel，PDCCH)。所述跳过RACH指在切换过程中不需要对目标主小区执行随机接入流程。The successful completion of the conditional handover can also have the following expressions: a response message (RRC reconfiguration complete message) for responding to the handover command to the target cell of the handover is delivered to the lower layer to send the message; (successfully) sent A response message (RRC reconfiguration complete message) used to respond to the handover command to the target cell of the handover; the Medium Access Control (MAC) layer successfully completed the random access process for accessing the target cell; When the random access channel (Random Access Channel, RACH) is passed, the MAC layer indicates that it has successfully received the physical downlink control channel (PDCCH) scrambled with the UE's Radio Network Temporary Identifier (RNTI). The skipping of RACH means that there is no need to perform a random access procedure on the target primary cell during the handover process.
在该步骤之前还包括步骤S200(条件切换监测和执行步骤)：UE接收包含切换执行条件的条件切换命令，保存所述条件切换配置，并基于所述切换执行条件的配置来检测所述切换执行条件是否满足。若所述切换执行条件满足，则UE根据所保存的条件切换配置执行到对应的条件切换目标小区的切换。Before this step, it also includes step S200 (conditional switching monitoring and execution step): the UE receives a conditional switching command containing a switching execution condition, saves the conditional switching configuration, and detects the switching execution based on the configuration of the switching execution condition Whether the conditions are met. If the handover execution condition is met, the UE executes handover to the corresponding conditional handover target cell according to the saved conditional handover configuration.
步骤S202(信息上报步骤)：若UE配置了UE信息上报，且若UE在所述条件切换过程对应的切换执行条件满足之前的一段时间内发送过UE信息上报消息，则UE发起向目标小区的UE信息上报消息的发送。优选地，所述一段时间为1秒钟。Step S202 (information reporting step): If the UE is configured for UE information reporting, and if the UE has sent a UE information reporting message within a period of time before the handover execution conditions corresponding to the conditional handover process are met, the UE initiates a message to the target cell Sending UE information report message. Preferably, the period of time is 1 second.
所述条件切换过程对应的切换执行条件满足之前还可以表述为：所保存的条件切换配置中的一个目标小区所对应的切换条件满足之前；UE根据所保存的条件切换配置执行到一个目标小区的切换之前；UE接入到一个条件切换目标小区之前。Before the handover execution condition corresponding to the conditional handover process is met, it can also be expressed as: before the handover condition corresponding to a target cell in the saved conditional handover configuration is met; the UE executes the handover to a target cell according to the saved conditional handover configuration Before handover; before the UE accesses a conditional handover target cell.
步骤S202执行的条件还包括，UE被配置了条件切换。所述UE被配置了条件切换也可以表述为UE上有保存的条件切换配置。The conditions performed in step S202 also include that the UE is configured with conditional switching. The conditional switching configuration of the UE may also be expressed as a conditional switching configuration saved on the UE.
当所述UE信息为IDC指示时，步骤S202可以描述为：若UE被配置了向网络侧提供IDC指示，且若UE在所述条件切换过程对应的切换执行条件满足之前的一段时间内发送过包含IDC指示信息的RRC消息(如InDeviceCoexIndication消息)，则UE向目标小区发起 包含IDC指示信息的RRC消息的发送。When the UE information is an IDC indication, step S202 can be described as: if the UE is configured to provide an IDC indication to the network side, and if the UE has sent an IDC indication within a period of time before the handover execution condition corresponding to the condition handover process is satisfied If an RRC message containing IDC indication information (such as an InDeviceCoexIndication message) is included, the UE initiates transmission of an RRC message containing IDC indication information to the target cell.
当所述UE信息为PPI、过热辅助信息、SPS辅助信息、时延预算报告或最大带宽选择指示时，步骤S202可以描述为：若UE被配置了向网络侧提供PPI、过热辅助信息、SPS辅助信息、时延预算报告或最大带宽选择指示，且若UE在条件切换过程对应的切换执行条件满足之前的一段时间内发送过包含PPI、过热辅助信息、SPS辅助信息、时延预算报告或最大带宽选择指示的RRC消息(如UE辅助信息UEassistanceinformation消息)，则UE向目标小区发起包含对应的UE信息的RRC消息的发送。When the UE information is PPI, overheating assistance information, SPS assistance information, delay budget report or maximum bandwidth selection indication, step S202 can be described as: if the UE is configured to provide PPI, overheating assistance information, SPS assistance to the network side Information, delay budget report or maximum bandwidth selection indication, and if the UE has sent PPI, overheating auxiliary information, SPS auxiliary information, delay budget report or maximum bandwidth within a period of time before the switching execution conditions corresponding to the conditional switching process are met When the indicated RRC message (such as UE assistance information UE assistance information message) is selected, the UE initiates the transmission of the RRC message containing the corresponding UE information to the target cell.
当所述UE信息为MBMS兴趣指示信息时，步骤S202可以描述为：若主小区广播了用于MBMS的***信息块(如SIB15)，且若UE在条件切换过程对应的切换执行条件满足之前的一段时间内发送过包含MBMS兴趣指示的RRC消息(如MBMSInterestIndication消息)，则UE确定其感兴趣的MBMS频率集合和/或感兴趣的MBMS服务集合，并发起包含MBMS兴趣指示的RRC消息。When the UE information is MBMS interest indication information, step S202 can be described as: if the primary cell broadcasts a system information block for MBMS (such as SIB15), and if the UE is in the conditional handover process, the corresponding handover execution condition meets the previous If an RRC message containing an MBMS interest indication (such as an MBMSInterestIndication message) is sent within a period of time, the UE determines the MBMS frequency set and/or the MBMS service set it is interested in, and initiates an RRC message containing the MBMS interest indication.
当所述UE信息为sidelink信息时，步骤S202可以描述为：若主小区广播了用于sidelink通信或sidelink发现或V2X sidelink通信的***信息块(如分别对应于SIB18、SIB19、SIB21)，且若UE在条件切换过程对应的切换执行条件满足之前的一段时间内发送过用于指示其sidelink通信或sidelink发现或V2X sidelink通信相关与目标主小区相关联的参数发生改变的sidelink UE信息的RRC消息(如sidelinkUEInformation消息)，则UE向目标小区发起包含sidelink UE信息的RRC消息的发送。When the UE information is sidelink information, step S202 can be described as: if the primary cell broadcasts a system information block for sidelink communication or sidelink discovery or V2X sidelink communication (for example, corresponding to SIB18, SIB19, and SIB21, respectively), and if The UE has sent an RRC message indicating that its sidelink communication or sidelink discovery or V2X sidelink communication related parameters associated with the target primary cell change within a period of time before the handover execution conditions corresponding to the conditional handover process are met ( For example, the sidelinkUEInformation message), the UE initiates the sending of an RRC message containing sidelink UE information to the target cell.
实施例2Example 2
该实施例提出了一种在UE上实现的用于无线链路失败后的RRC连接恢复过程中的UE信息上报方法。通过该实施例所述方法，UE在使用快速MCG链路失败恢复机制时，能够上报更准确的UE信息，或避免出现上报的UE信息过时或出现UE信息漏报的情况，从而更 好地保证对应业务在无线链路恢复过程前后的服务质量和服务连续性。下面，利用图3来描述该过程。This embodiment proposes a method for reporting UE information in the RRC connection recovery process after a radio link failure, implemented on the UE. Through the method described in this embodiment, when the UE uses the fast MCG link failure recovery mechanism, it can report more accurate UE information, or prevent the reported UE information from being out of date or UE information underreporting, thereby better guaranteeing Corresponding service quality and service continuity before and after the wireless link recovery process. In the following, the process is described using FIG. 3.
步骤S301(无线链路监测步骤)：UE监测到发生无线链路失败RLF。Step S301 (radio link monitoring step): The UE detects that a radio link failure RLF occurs.
步骤S302(无线链路恢复步骤)：若UE被配置了快速MCG链路失败恢复机制，则UE发起MCG失败指示过程，所述过程包括生成用于指示MCG失败的RRC消息，递交给下层以发送该消息。Step S302 (radio link recovery step): If the UE is configured with a fast MCG link failure recovery mechanism, the UE initiates an MCG failure indication process, which includes generating an RRC message for indicating MCG failure, and submitting it to the lower layer for sending The message.
所述用于指示MCG失败的RRC消息(如称MCG失败信息消息MCGFailureInformation)用于告知网络侧(即UE的主小区)发生了MCG的RLF。所述RRC消息可包含MCG链路失败指示、MCG链路失败原因、测量结果等。The RRC message used to indicate MCG failure (for example, the MCG failure information message MCGFailureInformation) is used to inform the network side (ie, the primary cell of the UE) that the RLF of the MCG has occurred. The RRC message may include MCG link failure indication, MCG link failure reason, measurement result, etc.
所述UE被配置了快速MCG链路失败恢复机制，也可以描述为UE被使能了快速MCG链路失败恢复机制，或UE支持快速MCG链路失败恢复机制。The UE is configured with a fast MCG link failure recovery mechanism, which can also be described as the UE being enabled with a fast MCG link failure recovery mechanism, or the UE supports a fast MCG link failure recovery mechanism.
步骤S303(信息上报步骤)：若UE在步骤S301检测到RLF之前的一段时间内向网络侧发送过用于上报UE信息的RRC消息，则UE向网络侧发起所述RRC消息的发送。Step S303 (information reporting step): If the UE sends an RRC message for reporting UE information to the network side within a period of time before the RLF is detected in step S301, the UE initiates the sending of the RRC message to the network side.
优选地，所述一段时间为1秒钟。Preferably, the period of time is 1 second.
当所述UE信息为IDC指示时，步骤S303可以描述为：若UE被配置了向网络侧提供IDC指示，且若UE在检测到RLF之前的一段时间内发送过包含IDC指示信息的RRC消息(如InDeviceCoexIndication消息)，则UE向网络侧发起包含IDC指示信息的RRC消息的发送。When the UE information is an IDC indication, step S303 can be described as: if the UE is configured to provide an IDC indication to the network side, and if the UE has sent an RRC message containing IDC indication information within a period of time before detecting RLF ( Such as the InDeviceCoexIndication message), the UE initiates the sending of an RRC message containing IDC indication information to the network side.
当所述UE信息为PPI、过热辅助信息、SPS辅助信息、时延预算报告或最大带宽选择指示时，步骤S303可以描述为：若UE被配置了向网络侧提供PPI、过热辅助信息、SPS辅助信息、时延预算报告或最大带宽选择指示，且若UE在检测到RLF之前的一段时间内发送过包含PPI、过热辅助信息、SPS辅助信息、时延预算报告或最大带宽选择指示的RRC消息(如UE辅助信息UEassistanceinformation消息)，则UE向网络侧发起包含对应的UE信息的RRC消息的发送。When the UE information is PPI, overheating assistance information, SPS assistance information, delay budget report or maximum bandwidth selection indication, step S303 can be described as: if the UE is configured to provide PPI, overheating assistance information, SPS assistance to the network side Information, delay budget report or maximum bandwidth selection indication, and if the UE has sent an RRC message containing PPI, overheating assistance information, SPS assistance information, delay budget report or maximum bandwidth selection indication within a period of time before RLF is detected ( For example, UE assistance information (UEassistanceinformation message), the UE initiates the transmission of an RRC message containing corresponding UE information to the network side.
当所述UE信息为MBMS兴趣指示信息时，步骤S303可以描述为：若主小区广播了用于MBMS的***信息块(如SIB15)，且若UE在检测到RLF之前的一段时间内发送过包含MBMS兴趣指示的RRC消息(如MBMSInterestIndication消息)，则UE确定其感兴趣的MBMS频率集合和/或感兴趣的MBMS服务集合，并向网络侧发起包含MBMS兴趣指示的RRC消息的发送。When the UE information is MBMS interest indication information, step S303 can be described as: if the primary cell broadcasts a system information block for MBMS (such as SIB15), and if the UE has sent a message containing information within a period of time before RLF is detected If the UE determines the MBMS frequency set and/or the MBMS service set that it is interested in, and initiates the transmission of the RRC message containing the MBMS interest indication to the network side.
当所述UE信息为sidelink信息时，步骤S303可以描述为：若主小区广播了用于sidelink通信或sidelink发现或V2X sidelink通信的***信息块(如分别对应于SIB18、SIB19、SIB21)，且若UE在检测到RLF之前的一段时间内发送过用于指示其sidelink通信或sidelink发现或V2X sidelink通信相关与主小区相关联的参数发生改变的sidelink UE信息的RRC消息(如sidelinkUEInformation消息)，则UE向网络侧发起包含sidelink UE信息的RRC消息的发送。When the UE information is sidelink information, step S303 can be described as: if the primary cell broadcasts system information blocks for sidelink communication or sidelink discovery or V2X sidelink communication (for example, corresponding to SIB18, SIB19, and SIB21, respectively), and if The UE has sent an RRC message (such as a sidelinkUEInformation message) that indicates its sidelink communication or sidelink discovery or V2X sidelink communication related parameters associated with the primary cell within a period of time before the RLF is detected. Initiate the sending of an RRC message containing sidelink UE information to the network side.
可选地，该实施例中，所述在检测到RLF之前的一段时间也可以是在步骤S302发送用于指示MCG失败的RRC消息之前的一段时间或者可以是在步骤S302触发MCG失败指示过程之前的一段时间。Optionally, in this embodiment, the period of time before the RLF is detected may also be a period of time before the RRC message for indicating MCG failure is sent in step S302 or may be before the MCG failure indication process is triggered in step S302 Some time.
实施例3Example 3
该实施例提出了一种在UE上实现的用于无线链路失败后的RRC连接恢复过程中的UE信息上报方法。通过该实施例所述方法，UE在使用快速MCG链路失败恢复机制时，能够上报更准确的UE信息，或避免出现上报的UE信息过时或出现UE信息漏报的情况，从而更好地保证对应业务在无线链路恢复过程前后的服务质量和服务连续性。This embodiment proposes a UE information reporting method implemented on the UE for the RRC connection recovery process after a radio link failure. Through the method described in this embodiment, when the UE uses the fast MCG link failure recovery mechanism, it can report more accurate UE information, or avoid the situation that the reported UE information is out of date or the UE information is underreported, thereby better guaranteeing Corresponding service quality and service continuity before and after the wireless link recovery process.
步骤1：UE监测到发生无线链路失败RLF。Step 1: The UE detects a radio link failure RLF.
步骤2：UE发起MCG失败指示过程，所述过程包括生成用于指示MCG失败的RRC消息，递交给下层以发送该消息。Step 2: The UE initiates an MCG failure indication process, which includes generating an RRC message for indicating MCG failure, and submitting it to the lower layer to send the message.
所述用于指示MCG失败的RRC消息(如称MCG失败信息消息MCGFailureInformation)用于告知网络侧(即UE的主小区)发生了MCG的RLF。所述RRC消息可包含MCG链路失败指示、MCG链路 失败原因、测量结果等。The RRC message used to indicate MCG failure (for example, the MCG failure information message MCGFailureInformation) is used to inform the network side (ie, the primary cell of the UE) that the RLF of the MCG has occurred. The RRC message may include MCG link failure indication, MCG link failure reason, measurement result, and so on.
可选地，步骤2在UE被配置了快速MCG链路失败恢复机制时执行。所述UE被配置了快速MCG链路失败恢复机制，也可以描述为UE被使能了快速MCG链路失败恢复机制，或UE支持快速MCG链路失败恢复机制。Optionally, step 2 is performed when the UE is configured with a fast MCG link failure recovery mechanism. The UE is configured with a fast MCG link failure recovery mechanism, which can also be described as the UE being enabled with a fast MCG link failure recovery mechanism, or the UE supports a fast MCG link failure recovery mechanism.
步骤3：UE接收来自MCG的RRC重配置消息，所述RRC消息用于指示UE执行切换。如前所述，所述RRC消息是通过SCG链路来中转的。Step 3: The UE receives an RRC reconfiguration message from the MCG, where the RRC message is used to instruct the UE to perform handover. As mentioned above, the RRC message is transferred through the SCG link.
步骤4：UE根据步骤3中所述切换命令执行切换，并成功完成切换。Step 4: The UE performs handover according to the handover command described in step 3 and successfully completes the handover.
所述成功完成切换还可以有下述几种表述方式：向下层递交了用于向切换的目标小区响应切换命令的响应消息(RRC重配置完成消息)以发送该消息；(成功)发送了用于向切换的目标小区响应切换命令的响应消息(RRC重配置完成消息)；媒体介入控制(Medium Access Control，MAC)层成功完成用于接入目标小区的随机接入过程；在配置了跳过RACH时MAC层指示成功接收到了以UE的无线网络临时标识(Radio Network Temporary Identifier，RNTI)加扰的PDCCH。所述跳过RACH指在切换过程中不需要对目标主小区执行随机接入流程。The successful completion of the handover can also have the following expressions: a response message (RRC reconfiguration complete message) used to respond to the handover command to the target cell of the handover is delivered to the lower layer to send the message; (successfully) the user is sent In response to the handover command response message (RRC reconfiguration complete message) to the handover target cell; the Medium Access Control (MAC) layer successfully completes the random access process for accessing the target cell; when the skip is configured During RACH, the MAC layer indicates that it has successfully received the PDCCH scrambled with the UE's Radio Network Temporary Identifier (RNTI). The skipping of RACH means that there is no need to perform a random access procedure on the target primary cell during the handover process.
步骤5：若UE在步骤1检测到RLF之前的一段时间内向网络侧发送过用于上报UE信息的RRC消息，则UE向切换成功的目标小区发起所述RRC消息的发送。Step 5: If the UE sends an RRC message for reporting UE information to the network side within a period of time before the RLF is detected in step 1, the UE initiates the sending of the RRC message to the target cell where the handover is successful.
优选地，所述一段时间为1秒钟。Preferably, the period of time is 1 second.
当所述UE信息为IDC指示时，步骤5可以描述为：若UE被配置了向网络侧提供IDC指示，且若UE在检测到RLF之前的一段时间内发送过包含IDC指示信息的RRC消息(如InDeviceCoexIndication消息)，则UE向网络侧发起包含IDC指示信息的RRC消息的发送。When the UE information is an IDC indication, step 5 can be described as: if the UE is configured to provide an IDC indication to the network side, and if the UE has sent an RRC message containing IDC indication information within a period of time before detecting RLF ( Such as the InDeviceCoexIndication message), the UE initiates the sending of an RRC message containing IDC indication information to the network side.
当所述UE信息为PPI、过热辅助信息、SPS辅助信息、时延预算报告或最大带宽选择指示时，步骤5可以描述为：若UE被配置了向 网络侧提供PPI、过热辅助信息、SPS辅助信息、时延预算报告或最大带宽选择指示，且若UE在检测到RLF之前的一段时间内发送过包含PPI、过热辅助信息、SPS辅助信息、时延预算报告或最大带宽选择指示的RRC消息(如UE辅助信息UEassistanceinformation消息)，则UE向网络侧发起包含对应的UE信息的RRC消息的发送。When the UE information is PPI, overheating assistance information, SPS assistance information, delay budget report or maximum bandwidth selection indication, step 5 can be described as: if the UE is configured to provide PPI, overheating assistance information, SPS assistance to the network side Information, delay budget report or maximum bandwidth selection indication, and if the UE has sent an RRC message containing PPI, overheating assistance information, SPS assistance information, delay budget report or maximum bandwidth selection indication within a period of time before RLF is detected ( For example, UE assistance information (UEassistanceinformation message), the UE initiates the transmission of an RRC message containing corresponding UE information to the network side.
当所述UE信息为MBMS兴趣指示信息时，步骤5可以描述为：若主小区广播了用于MBMS的***信息块(如SIB15)，且若UE在检测到RLF之前的一段时间内发送过包含MBMS兴趣指示的RRC消息(如MBMSInterestIndication消息)，则UE确定其感兴趣的MBMS频率集合和/或感兴趣的MBMS服务集合，并向网络侧发起包含MBMS兴趣指示的RRC消息的发送。When the UE information is MBMS interest indication information, step 5 can be described as: if the primary cell broadcasts a system information block for MBMS (such as SIB15), and if the UE has sent a message containing information within a period of time before RLF is detected If the UE determines the MBMS frequency set and/or the MBMS service set that it is interested in, and initiates the transmission of the RRC message containing the MBMS interest indication to the network side.
当所述UE信息为sidelink信息时，步骤5可以描述为：若主小区广播了用于sidelink通信或sidelink发现或V2X sidelink通信的***信息块(如分别对应于SIB18、SIB19、SIB21)，且若UE在检测到RLF之前的一段时间内发送过用于指示其sidelink通信或sidelink发现或V2X sidelink通信相关与主小区相关联的参数发生改变的sidelink UE信息的RRC消息(如sidelinkUEInformation消息)，则UE向网络侧发起包含sidelink UE信息的RRC消息的发送。When the UE information is sidelink information, step 5 can be described as: if the primary cell broadcasts system information blocks for sidelink communication or sidelink discovery or V2X sidelink communication (for example, corresponding to SIB18, SIB19, and SIB21, respectively), and if The UE has sent an RRC message (such as a sidelinkUEInformation message) that indicates its sidelink communication or sidelink discovery or V2X sidelink communication related parameters associated with the primary cell within a period of time before the RLF is detected. Initiate the sending of an RRC message containing sidelink UE information to the network side.
可选地，该实施例中，所述在检测到RLF之前的一段时间也可以是在发送用于指示MCG失败的RRC消息之前的一段时间或者可以是在触发MCG失败指示过程之前的一段时间。Optionally, in this embodiment, the period of time before the RLF is detected may also be a period of time before the RRC message for indicating MCG failure is sent or may be a period of time before the MCG failure indication procedure is triggered.
可选地，步骤5中，UE决定发起UE信息上报的条件还包括，若UE在接收到所述切换命令之前向网络侧发送了用于指示MCG失败信息的RRC消息。或者表述为所述切换命令是用于响应所述用于指示MCG失败信息的RRC消息；或者也可表述为所述UE在接收到所述切换命令之前发起了用于指示MCG失败信息的快速MCG失败恢复过程。在满足该条件时，UE执行步骤5，否则UE确定在步骤3接收到切换命令之前一段时间内向网络侧发送过用于上报UE信息的RRC消息，则UE向切换成功的目标小区发起所述RRC消息的发送。Optionally, in step 5, the condition for the UE to decide to initiate UE information reporting further includes, if the UE sends an RRC message indicating MCG failure information to the network before receiving the handover command. Or it can be expressed that the handover command is used to respond to the RRC message used to indicate MCG failure information; or it can also be expressed as that the UE initiates a fast MCG indicating MCG failure information before receiving the handover command Failure recovery process. When this condition is met, the UE performs step 5, otherwise the UE determines that the RRC message for reporting UE information has been sent to the network side within a period of time before receiving the handover command in step 3, then the UE initiates the RRC to the target cell where the handover is successful Sending of messages.
图4是本公开涉及的用户设备UE的简要结构框图。如图4所示，该用户设备UE400包括处理器401和存储器402。处理器401例如可以包括微处理器、微控制器、嵌入式处理器等。存储器402例如可以包括易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器等。存储器402上存储有程序指令。该指令在由处理器401运行时，可以执行本公开详细描述的由用户设备执行的上述方法。Fig. 4 is a brief structural block diagram of the user equipment UE involved in the present disclosure. As shown in FIG. 4, the user equipment UE400 includes a processor 401 and a memory 402. The processor 401 may include, for example, a microprocessor, a microcontroller, an embedded processor, and the like. The memory 402 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. The memory 402 stores program instructions. When the instruction is executed by the processor 401, it can execute the above-mentioned method executed by the user equipment described in detail in this disclosure.
本公开中，一些不同实施例之间可以协同工作。In the present disclosure, some different embodiments can work together.
在本公开中，“基站”是指具有较大发射功率和较广覆盖面积的移动通信数据和控制交换中心，包括资源分配调度、数据接收发送等功能。“用户设备”是In the present disclosure, "base station" refers to a mobile communication data and control switching center with larger transmission power and wider coverage area, including functions such as resource allocation and scheduling, data reception and transmission. "User Equipment" is
指用户移动终端，例如包括移动电话、笔记本等可以与基站或者微基站进行无线通信的终端设备。Refers to user mobile terminals, such as mobile phones, notebooks, and other terminal devices that can communicate with base stations or micro base stations wirelessly.
上文已经结合优选实施例对本公开的方法和涉及的设备进行了描述。本领域技术人员可以理解，上面示出的方法仅是示例性的。本公开的方法并不局限于上面示出的步骤和顺序。上面示出的基站和用户设备可以包括更多的模块，例如还可以包括可以开发的或者将来开发的可用于基站、MME、或UE的模块等等。上文中示出的各种标识仅是示例性的而不是限制性的，本公开并不局限于作为这些标识的示例的具体信元。本领域技术人员根据所示实施例的教导可以进行许多变化和修改。The method and related equipment of the present disclosure have been described above in conjunction with preferred embodiments. Those skilled in the art can understand that the method shown above is only exemplary. The method of the present disclosure 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 can be developed or developed in the future that can be used for base stations, MMEs, or UEs, and so on. 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. Those skilled in the art can make many changes and modifications based on the teaching of the illustrated embodiment.
运行在根据本公开的设备上的程序可以是通过控制中央处理单元(CPU)来使计算机实现本公开的实施例功能的程序。该程序或由该程序处理的信息可以临时存储在易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器***中。The program running on the device according to the present disclosure may be a program that causes the computer to implement the functions of the embodiments of the present disclosure by controlling a central processing unit (CPU). The program or the information processed by the program can 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.
用于实现本公开各实施例功能的程序可以记录在计算机可读记录 介质上。可以通过使计算机***读取记录在所述记录介质上的程序并执行这些程序来实现相应的功能。此处的所谓“计算机***”可以是嵌入在该设备中的计算机***，可以包括操作***或硬件(如***设备)。“计算机可读记录介质”可以是半导体记录介质、光学记录介质、磁性记录介质、短时动态存储程序的记录介质、或计算机可读的任何其他记录介质。The program for realizing the functions of the various embodiments of the present disclosure can be recorded on a computer-readable recording medium. Corresponding functions can be realized by causing the computer system to read the programs recorded on the recording medium and execute these programs. The so-called "computer system" herein may be a computer system embedded in the device, and 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 storing a program dynamically for a short time, or any other recording medium readable by a computer.
用在上述实施例中的设备的各种特征或功能模块可以通过电路(例如，单片或多片集成电路)来实现或执行。设计用于执行本说明书所描述的功能的电路可以包括通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、或其他可编程逻辑器件、分立的门或晶体管逻辑、分立的硬件组件、或上述器件的任意组合。通用处理器可以是微处理器，也可以是任何现有的处理器、控制器、微控制器、或状态机。上述电路可以是数字电路，也可以是模拟电路。因半导体技术的进步而出现了替代现有集成电路的新的集成电路技术的情况下，本公开的一个或多个实施例也可以使用这些新的集成电路技术来实现。Various features or functional modules of the devices used in the above-mentioned embodiments may be implemented or executed by circuits (for example, single-chip or multi-chip integrated circuits). Circuits designed to perform the functions described in this specification can include general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, discrete Gate or transistor logic, discrete hardware components, or any combination of the above devices. The general-purpose processor may be a microprocessor, or any existing processor, controller, microcontroller, or state machine. The above circuit can be a digital circuit or an analog circuit. In the case of new integrated circuit technologies that 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.
此外，本公开并不局限于上述实施例。尽管已经描述了所述实施例的各种示例，但本公开并不局限于此。安装在室内或室外的固定或非移动电子设备可以用作终端设备或通信设备，如AV设备、厨房设备、清洁设备、空调、办公设备、自动贩售机、以及其他家用电器等。In addition, the present disclosure is not limited to the above-mentioned embodiments. Although various examples of the embodiment 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 conditioning, office equipment, vending machines, and other household appliances.
如上，已经参考附图对本公开的实施例进行了详细描述。但是，具体的结构并不局限于上述实施例，本公开也包括不偏离本公开主旨的任何设计改动。另外，可以在权利要求的范围内对本公开进行多种改动，通过适当地组合不同实施例所公开的技术手段所得到的实施例也包含在本公开的技术范围内。此外，上述实施例中所描述的具有相同效果的组件可以相互替代。As above, the embodiments of the present disclosure have been described in detail with reference to the drawings. However, the specific structure is not limited to the above embodiments, and the present disclosure also includes any design changes that do not deviate from the gist of the present disclosure. In addition, various modifications can be made to the present disclosure within the scope of the claims, and embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present disclosure. In addition, the components having the same effects described in the above embodiments may be substituted for each other.

Claims (10)

  1. 一种由用户设备执行的信息上报方法，是在用户设备UE上实现的用于条件切换过程的UE信息上报方法，包括如下步骤：An information reporting method executed by a user equipment is a UE information reporting method for a conditional handover process implemented on the user equipment UE, and includes the following steps:
    条件切换监测和执行步骤，UE接收包含切换执行条件的条件切换命令，保存条件切换配置，并基于切换执行条件的配置来检测所述切换执行条件是否满足，若所述切换执行条件满足，则UE根据所保存的条件切换配置执行到对应的条件切换目标小区的切换；In the conditional switching monitoring and execution step, the UE receives the conditional switching command containing the switching execution condition, saves the conditional switching configuration, and detects whether the switching execution condition is satisfied based on the configuration of the switching execution condition. If the switching execution condition is satisfied, the UE Perform handover to the corresponding conditional handover target cell according to the saved conditional handover configuration;
    条件切换完成步骤，UE成功完成条件切换；The conditional handover is completed, and the UE successfully completes the conditional handover;
    信息上报步骤，若UE配置了UE信息上报，且若UE在条件切换过程对应的切换执行条件满足之前的一段时间内发送过UE信息上报消息，则UE发起向目标小区的UE信息上报消息的发送。Information reporting step. If the UE is configured to report UE information, and if the UE has sent a UE information report message within a period of time before the handover execution conditions corresponding to the conditional handover process are met, the UE initiates the sending of the UE information report message to the target cell .
  2. 根据权利要求1所述的由用户设备执行的信息上报方法，其中，The information reporting method performed by the user equipment according to claim 1, wherein:
    所述成功完成条件切换包括以下的一种或多种：The successful completion condition switching includes one or more of the following:
    向下层递交了用于向切换的目标小区响应切换命令的响应消息以发送该消息；The lower layer submits a response message for responding to the handover command to the handover target cell to send the message;
    成功发送了用于向切换的目标小区响应切换命令的响应消息；A response message for responding to the handover command to the handover target cell is successfully sent;
    媒体介入控制MAC层成功完成用于接入目标小区的随机接入过程；Media intervention controls the MAC layer to successfully complete the random access process for accessing the target cell;
    在配置了跳过随机接入信道RACH时，MAC层指示成功接收到了以UE的无线网络临时标识RNTI加扰的物理下行控制信道PDCCH。When the skip random access channel RACH is configured, the MAC layer indicates that the physical downlink control channel PDCCH scrambled with the UE's wireless network temporary identification RNTI is successfully received.
  3. 根据权利要求1或2所述的由用户设备执行的信息上报方法，其中，The information reporting method executed by the user equipment according to claim 1 or 2, wherein:
    所述条件切换过程对应的切换执行条件满足之前包括以下的一种或多种：Before the handover execution condition corresponding to the conditional handover process is satisfied, it includes one or more of the following:
    所保存的条件切换配置中的一个目标小区所对应的切换条件满足之前；Before the handover condition corresponding to a target cell in the saved conditional handover configuration is satisfied;
    UE根据所保存的条件切换配置执行到一个目标小区的切换之前；Before the UE performs handover to a target cell according to the saved conditional handover configuration;
    UE接入到一个条件切换目标小区之前。Before the UE accesses a conditional handover target cell.
  4. 根据权利要求1或2所述的由用户设备执行的信息上报方法，其中，The information reporting method executed by the user equipment according to claim 1 or 2, wherein:
    所述信息上报步骤执行的条件还包括：UE被配置了条件切换，即UE上有保存的条件切换配置。The conditions for performing the information reporting step further include: the UE is configured with conditional switching, that is, there is a saved conditional switching configuration on the UE.
  5. 根据权利要求1或2所述的由用户设备执行的信息上报方法，其中，The information reporting method executed by the user equipment according to claim 1 or 2, wherein:
    当所述UE信息为设备内共存IDC指示时，若UE被配置了向网络侧提供IDC指示，且若UE在所述条件切换过程对应的切换执行条件满足之前的一段时间内发送过包含IDC指示信息的无线资源控制RRC消息，则UE向目标小区发起包含IDC指示信息的RRC消息的发送；When the UE information is an IDC indication for in-device coexistence, if the UE is configured to provide an IDC indication to the network side, and if the UE has sent an IDC indication within a period of time before the handover execution condition corresponding to the condition handover process is met If the information is a radio resource control RRC message, the UE initiates the sending of an RRC message containing IDC indication information to the target cell;
    当所述UE信息为功率选择指示PPI、过热辅助信息、半静态调度SPS辅助信息、时延预算报告或最大带宽选择指示时，若UE被配置了向网络侧提供PPI、过热辅助信息、SPS辅助信息、时延预算报告或最大带宽选择指示，且若UE在所述条件切换过程对应的切换执行条件满足之前的一段时间内发送过包含PPI、过热辅助信息、SPS辅助信息、时延预算报告或最大带宽选择指示的RRC消息，则UE向目标小区发起包含对应的UE信息的RRC消息的发送；When the UE information is power selection indication PPI, overheating assistance information, semi-persistent scheduling SPS assistance information, time delay budget report or maximum bandwidth selection indication, if the UE is configured to provide PPI, overheating assistance information, SPS assistance to the network side Information, delay budget report or maximum bandwidth selection indication, and if the UE has sent a PPI, overheating auxiliary information, SPS auxiliary information, delay budget report, or For the RRC message indicated by the maximum bandwidth selection, the UE initiates the transmission of the RRC message containing the corresponding UE information to the target cell;
    当所述UE信息为多媒体广播多播业务MBMS兴趣指示信息时，若主小区广播了用于MBMS的***信息块，且若UE在所述条件切换过程对应的切换执行条件满足之前的一段时间内发送过包含MBMS兴趣指示的RRC消息，则UE确定其感兴趣的MBMS频率集合和/或感兴趣的MBMS服务集合，并发起包含MBMS兴趣指示的RRC消息；When the UE information is multimedia broadcast multicast service MBMS interest indication information, if the primary cell broadcasts a system information block for MBMS, and if the UE is within a period of time before the handover execution condition corresponding to the condition handover process is satisfied After sending the RRC message containing the MBMS interest indication, the UE determines the MBMS frequency set and/or the interest MBMS service set it is interested in, and initiates the RRC message containing the MBMS interest indication;
    当所述UE信息为边缘通信sidelink信息时，若主小区广播了用于sidelink通信或sidelink发现或车联网V2X sidelink通信的***信息块，且若UE在所述条件切换过程对应的切换执行条件满足之前的一段时间内发送过用于指示其sidelink通信或sidelink发现或V2X sidelink通信相关与目标主小区相关联的参数发生改变的sidelink UE信息的RRC消息，则UE向目标小区发起包含sidelink UE信息的RRC 消息的发送。When the UE information is edge communication sidelink information, if the primary cell broadcasts a system information block used for sidelink communication or sidelink discovery or car networking V2X sidelink communication, and if the UE handover execution condition corresponding to the condition handover process is satisfied In the previous period of time, it has sent an RRC message indicating its sidelink communication or sidelink discovery or V2X sidelink communication related parameters associated with the target primary cell sidelink UE information has changed, then the UE initiates a sidelink UE information to the target cell Sending of RRC messages.
  6. 一种由用户设备执行的信息上报方法，是在UE上实现的用于无线链路失败RLF后的RRC连接恢复过程中的UE信息上报方法，包括如下步骤：An information reporting method performed by a user equipment is a method for reporting UE information in the process of RRC connection recovery after a radio link failure RLF is implemented on the UE, and includes the following steps:
    无线链路监测步骤，UE监测到发生无线链路失败RLF；In the radio link monitoring step, the UE detects a radio link failure RLF;
    无线链路恢复步骤，若UE被配置了快速主小区组MCG链路失败恢复机制，则UE发起MCG失败指示过程，所述过程包括生成用于指示MCG失败的RRC消息，递交给下层以发送该消息；In the radio link recovery step, if the UE is configured with the fast primary cell group MCG link failure recovery mechanism, the UE initiates the MCG failure indication process, which includes generating an RRC message for indicating MCG failure, and submitting it to the lower layer to send this news;
    信息上报步骤，若UE在检测到RLF之前的一段时间内向网络侧发送过用于上报UE信息的RRC消息，则UE向网络侧发起所述RRC消息的发送。In the information reporting step, if the UE sends an RRC message for reporting UE information to the network side within a period of time before the RLF is detected, the UE initiates the sending of the RRC message to the network side.
  7. 根据权利要求6所述的由用户设备执行的信息上报方法，其中，The information reporting method executed by the user equipment according to claim 6, wherein:
    所述用于指示MCG失败的RRC消息包含MCG链路失败指示、MCG链路失败原因、测量结果，用于告知网络侧发生了MCG的RLF。The RRC message used to indicate MCG failure includes MCG link failure indication, MCG link failure reason, and measurement result, and is used to inform the network side that RLF of MCG has occurred.
  8. 根据权利要求6或7所述的由用户设备执行的信息上报方法，其中，The information reporting method executed by the user equipment according to claim 6 or 7, wherein:
    当所述UE信息为IDC指示时，若UE被配置了向网络侧提供IDC指示，且若UE在检测到RLF之前的一段时间内发送过包含IDC指示信息的RRC消息，则UE向网络侧发起包含IDC指示信息的RRC消息的发送；When the UE information is an IDC indication, if the UE is configured to provide an IDC indication to the network side, and if the UE has sent an RRC message containing IDC indication information within a period of time before RLF is detected, the UE initiates an IDC indication to the network side Sending of RRC messages containing IDC indication information;
    当所述UE信息为PPI、过热辅助信息、SPS辅助信息、时延预算报告或最大带宽选择指示时，若UE被配置了向网络侧提供PPI、过热辅助信息、SPS辅助信息、时延预算报告或最大带宽选择指示，且若UE在检测到RLF之前的一段时间内发送过包含PPI、过热辅助信息、SPS辅助信息、时延预算报告或最大带宽选择指示的RRC消息，则UE向网络侧发起包含对应的UE信息的RRC消息的发送；When the UE information is PPI, overheating assistance information, SPS assistance information, time delay budget report or maximum bandwidth selection indication, if the UE is configured to provide PPI, overheating assistance information, SPS assistance information, and time delay budget report to the network side Or maximum bandwidth selection indication, and if the UE has sent an RRC message containing PPI, overheating assistance information, SPS assistance information, delay budget report, or maximum bandwidth selection indication within a period of time before RLF is detected, the UE initiates to the network side Sending of RRC messages containing corresponding UE information;
    当所述UE信息为MBMS兴趣指示信息时，若主小区广播了用于MBMS的***信息块，且若UE在检测到RLF之前的一段时间内发送过包含MBMS兴趣指示的RRC消息，则UE确定其感兴趣的MBMS 频率集合和/或感兴趣的MBMS服务集合，并向网络侧发起包含MBMS兴趣指示的RRC消息的发送；When the UE information is MBMS interest indication information, if the primary cell broadcasts a system information block for MBMS, and if the UE has sent an RRC message containing the MBMS interest indication within a period of time before RLF is detected, the UE determines It is interested in the MBMS frequency set and/or the MBMS service set of interest, and initiates the sending of the RRC message containing the MBMS interest indication to the network side;
    当所述UE信息为sidelink信息时，若主小区广播了用于sidelink通信或sidelink发现或V2X sidelink通信的***信息块，且若UE在检测到RLF之前的一段时间内发送过用于指示其sidelink通信或sidelink发现或V2X sidelink通信相关与主小区相关联的参数发生改变的sidelink UE信息的RRC消息，则UE向网络侧发起包含sidelink UE信息的RRC消息的发送。When the UE information is sidelink information, if the primary cell broadcasts a system information block used for sidelink communication or sidelink discovery or V2X sidelink communication, and if the UE has sent a system information block for indicating its sidelink within a period of time before RLF is detected Communication or sidelink discovery or V2X sidelink communication related to the RRC message of sidelink UE information that has changed the parameters associated with the primary cell, the UE initiates the transmission of the RRC message containing the sidelink UE information to the network side.
  9. 根据权利要求6或7所述的由用户设备执行的信息上报方法，其中，The information reporting method executed by the user equipment according to claim 6 or 7, wherein:
    所述在检测到RLF之前的一段时间是发送用于指示MCG失败的RRC消息之前的一段时间、或者触发MCG失败指示过程之前的一段时间。The period of time before the RLF is detected is a period of time before the RRC message for indicating MCG failure is sent, or a period of time before the MCG failure indication process is triggered.
  10. 一种用户设备，包括：A user equipment including:
    处理器；以及Processor; and
    存储器，所述存储器上存储有指令，A memory on which instructions are stored,
    所述指令在由所述处理器运行时，使所述用户设备执行根据权利要求1-9中任一项所述的方法。When the instructions are executed by the processor, the user equipment executes the method according to any one of claims 1-9.
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