WO2021203973A1 - 无线链路失败信息上报、获取方法、终端及网络侧设备 - Google Patents

无线链路失败信息上报、获取方法、终端及网络侧设备 Download PDF

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Publication number
WO2021203973A1
WO2021203973A1 PCT/CN2021/082681 CN2021082681W WO2021203973A1 WO 2021203973 A1 WO2021203973 A1 WO 2021203973A1 CN 2021082681 W CN2021082681 W CN 2021082681W WO 2021203973 A1 WO2021203973 A1 WO 2021203973A1
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WIPO (PCT)
Prior art keywords
terminal
information
access
rlf information
link failure
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PCT/CN2021/082681
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English (en)
French (fr)
Inventor
王睿炜
刘爱娟
彦楠
Original Assignee
大唐移动通信设备有限公司
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Publication date
Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Priority to US17/917,121 priority Critical patent/US20230156843A1/en
Priority to JP2022562061A priority patent/JP7423818B2/ja
Priority to KR1020227038838A priority patent/KR20220164578A/ko
Priority to EP21785270.6A priority patent/EP4135393A4/en
Publication of WO2021203973A1 publication Critical patent/WO2021203973A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • 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
    • H04W36/0079—Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a method for reporting and acquiring wireless link failure information, a terminal, and a network side device.
  • the New Radio (NR) R16 also introduces the Mobility Robustness Optimization (MRO) feature, which mainly solves the problem of parameter optimization in the mobility process.
  • MRO Mobility Robustness Optimization
  • the terminal In the scenario of handover failure, the terminal only records the Cell Global Identity (CGI) information of the accessed cell, but still lacks some necessary information, which may cause misjudgment of the MRO.
  • CGI Cell Global Identity
  • the embodiments of the present disclosure provide a method for reporting and acquiring wireless link failure information, a terminal, and network-side equipment to solve the problem that in the scenario of handover failure in related technologies, the terminal only records the CGI of the access cell, which may cause MRO errors. The issue of judgment.
  • embodiments of the present disclosure provide a method for reporting wireless link failure information, which is applied to a terminal, and includes:
  • the radio link failure RLF information includes: the tracking area code TAC of the cell that the terminal accesses, the tracking area identification code TAI, and the system identifier. At least one item, wherein the RLF information is related to the time when the terminal re-accesses or re-establishes access;
  • the recording of radio link failure RLF information during the radio resource control RRC connection re-establishment or RRC connection establishment process of the terminal includes:
  • RLF information recording is performed.
  • the RLF information further includes: access time information, and the time information is used to indicate the length of time from the failure of the handover or the failure of the radio link to the re-access or re-establishment of the access.
  • the method further includes:
  • the recording of RLF information when the terminal sends an RRC connection re-establishment request or an RRC connection establishment request includes:
  • the terminal sends the RRC connection re-establishment request or the RRC connection establishment request, if the first timer is in the running period, the RLF information is recorded.
  • the method further includes:
  • the recording of RLF information includes:
  • the RLF information recording is performed when an RRC connection establishment request is triggered for the first time after a handover failure or a radio link failure occurs in the terminal.
  • system identifier is used to indicate one of the following:
  • the access cell is the packet core network EPC system
  • the access cell is the fifth-generation communication core network 5GC system;
  • the access cell is the universal terrestrial wireless access UTRA system
  • the access cell is a wireless fidelity WIFI system.
  • the reporting the RLF information to the network side device includes:
  • the RLF information further includes: the cell global identification code (CGI) of the access cell.
  • CGI cell global identification code
  • the embodiment of the present disclosure also provides a method for acquiring wireless link failure information, which is applied to a network side device, and includes:
  • the RLF information includes at least one of a tracking area code TAC, a tracking area identification code TAI, and a system identifier of the cell that the terminal accesses, and the RLF information is related to the time when the terminal re-accesses or re-establishes access.
  • the RLF information further includes: access time information, and the time information is used to indicate the length of time from the failure of the handover or the failure of the radio link to the re-access or re-establishment of the access.
  • the method before the receiving the radio link failure RLF information sent by the terminal, the method further includes:
  • the configuration information of the first timer is sent to the terminal through air interface signaling.
  • system identifier is used to indicate one of the following:
  • the access cell is the packet core network EPC system
  • the access cell is the fifth-generation communication core network 5GC system;
  • the access cell is the universal terrestrial wireless access UTRA system
  • the access cell is a wireless fidelity WIFI system.
  • the radio link failure RLF information sent by the receiving terminal includes:
  • the RLF information is transferred between network-side devices or within network-side devices.
  • the interface involved in transmitting the RLF information includes at least one of the following:
  • the RLF information also includes: the cell global identification code (CGI) of the access cell.
  • CGI cell global identification code
  • the embodiment of the present disclosure further provides a terminal, including: a memory, a processor, and a program stored on the memory and capable of running on the processor; the processor implements the following steps when the program is executed by the processor:
  • the radio link failure RLF information includes: the tracking area code TAC of the cell that the terminal accesses, the tracking area identification code TAI, and the system identifier. At least one item, wherein the RLF information is related to the time when the terminal re-accesses or re-establishes access;
  • the processor executes the procedure of recording radio link failure RLF information during the radio resource control RRC connection re-establishment or RRC connection establishment process of the terminal, the following steps are implemented:
  • RLF information recording is performed.
  • the RLF information further includes: access time information, and the time information is used to indicate the length of time from the failure of the handover or the failure of the radio link to the re-access or re-establishment of the access.
  • processor further implements the following steps when executing the program:
  • the processor implements the following steps when executing the procedure of RLF information recording when the terminal sends an RRC connection re-establishment request or an RRC connection establishment request:
  • the terminal sends the RRC connection re-establishment request or the RRC connection establishment request, if the first timer is in the running period, the RLF information is recorded.
  • the processor further implements the following steps when executing the program:
  • the processor when the terminal sends an RRC connection establishment request, the processor implements the following steps when executing the procedure for recording RLF information:
  • the RLF information recording is performed when an RRC connection establishment request is triggered for the first time after a handover failure or a radio link failure occurs in the terminal.
  • system identifier is used to indicate one of the following:
  • the access cell is the packet core network EPC system
  • the access cell is the fifth-generation communication core network 5GC system;
  • the access cell is the universal terrestrial wireless access UTRA system
  • the access cell is a wireless fidelity WIFI system.
  • the RLF information also includes: the cell global identification code (CGI) of the access cell.
  • CGI cell global identification code
  • the embodiment of the present disclosure also provides a network side device, including: a memory, a processor, and a program stored on the memory and capable of running on the processor; the processor implements the following steps when the processor executes the program:
  • the RLF information includes at least one of a tracking area code TAC, a tracking area identification code TAI, and a system identifier of the cell that the terminal accesses, and the RLF information is related to the time when the terminal re-accesses or re-establishes access.
  • the RLF information further includes: access time information, and the time information is used to indicate the length of time from the failure of the handover or the failure of the radio link to the re-access or re-establishment of the access.
  • the processor further implements the following steps when executing the program:
  • the configuration information of the first timer is sent to the terminal through air interface signaling.
  • system identifier is used to indicate one of the following:
  • the access cell is the packet core network EPC system
  • the access cell is the fifth-generation communication core network 5GC system;
  • the access cell is the universal terrestrial wireless access UTRA system
  • the access cell is a wireless fidelity WIFI system.
  • the processor further implements the following steps when executing the program:
  • the RLF information is transferred between network-side devices or within network-side devices.
  • the interface involved in transmitting the RLF information includes at least one of the following:
  • the RLF information also includes: the cell global identification code (CGI) of the access cell.
  • CGI cell global identification code
  • the embodiment of the present disclosure also provides a terminal, including:
  • the recording module is used to record radio link failure RLF information during the process of radio resource control RRC connection re-establishment or RRC connection establishment of the terminal.
  • the RLF information includes: the tracking area code TAC and the tracking area identification code TAI of the cell that the terminal accesses And at least one of the system identification, wherein the RLF information is related to the time when the terminal re-accesses or re-establishes access;
  • the reporting module is used to report the RLF information to the network side device.
  • the embodiment of the present disclosure also provides a network side device, including:
  • the receiving module is used to receive the radio link failure RLF information sent by the terminal;
  • the RLF information includes at least one of a tracking area code TAC, a tracking area identification code TAI, and a system identifier of the cell that the terminal accesses, and the RLF information is related to the time when the terminal re-accesses or re-establishes access.
  • Embodiments of the present disclosure also provide a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the foregoing method for reporting wireless link failure information or the foregoing method for acquiring wireless link failure information is implemented .
  • the RLF information including at least one of the TAC, TAI, and system identity of the cell that the terminal accesses is recorded during the RRC connection re-establishment or RRC connection establishment process, and the recorded RLF information is reported to Network-side equipment, in this way, can improve the accuracy of MRO.
  • Figure 1 shows a schematic diagram of a terminal recording and reporting an RLF report process
  • Figure 2 shows a schematic diagram of the flow of a scene of premature handover
  • Fig. 3 shows a schematic diagram of the flow of a late handover scenario
  • FIG. 4 shows a schematic flowchart of a method for reporting wireless link failure information according to an embodiment of the present disclosure
  • FIG. 5 is a schematic flowchart of scenario 1 of the method for reporting wireless link failure information applied to an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart of scenario 2 of the method for reporting wireless link failure information applied to an embodiment of the present disclosure
  • FIG. 7 is a schematic flowchart of scenario 3 of the method for reporting wireless link failure information applied to an embodiment of the present disclosure
  • FIG. 8 is a schematic flowchart of scenario 4 of the method for reporting wireless link failure information applied to an embodiment of the present disclosure
  • FIG. 9 is a schematic flowchart of scenario 5 of the method for reporting wireless link failure information applied to an embodiment of the present disclosure.
  • FIG. 10 shows a schematic flowchart of a method for acquiring wireless link failure information according to an embodiment of the present disclosure
  • FIG. 11 shows a schematic diagram of modules of a terminal according to an embodiment of the present disclosure
  • FIG. 12 shows a structural diagram of a terminal according to an embodiment of the present disclosure
  • FIG. 13 shows a schematic diagram of modules of a network side device according to an embodiment of the present disclosure
  • Fig. 14 shows a structural diagram of a network-side device according to an embodiment of the present disclosure.
  • the RLF report is a type of report recorded on the terminal side, which mainly covers two recording scenarios: handover failure and wireless link failure.
  • One RLF report can only indicate the recording of one scenario.
  • the RLF report contains the following:
  • S12 The terminal confirms the measurement result of the neighboring cell after the handover fails or the wireless link fails;
  • Identification information of the cell where the terminal fails such as cell global identity (CGI)/physical cell identity (PCI) + frequency;
  • the terminal rebuilds cell identification information
  • the cell radio network temporary identifier (Cell-RadioNetworkTemporaryIdentifier, C-RNTI) used when the terminal connection fails;
  • the radio link failure sub-cause, T310 timeout or random access problem, or the radio link control protocol (RLC) layer reaches the maximum retransmission or beam recovery failure (Beam Failure Recovery Failure, BFRF);
  • the terminal After the terminal confirms that the connection fails, the terminal reports the elapsed time of the RLF report;
  • TAC Tracking Area Code
  • the terminal re-accesses the CGI of the cell.
  • the RLF report is stored in the terminal for a maximum of 48 hours. Within 48 hours, the terminal can notify the network to retrieve the RLF report recorded on the terminal side through dedicated signaling. The specific process is shown in Figure 1.
  • step S101 of FIG. 1 the terminal instructs the network side to count the RLF report data in the specific message.
  • the specific message of the desirable specific message refers to the connection establishment completion message or the connection restoration completion message or the connection reconfiguration completion message or the connection reestablishment.
  • the network side After the network side collects the RLF report reported by the terminal, it can forward the collected terminal data to other cells through an interface message.
  • MRO Mobility Robustness Optimisation
  • the MRO feature is mainly used to discover and solve the problem of parameter configuration in the mobility process, and defines 3 types of failures: handover too early, handover too late, and handover to the wrong cell.
  • Radio resource control (RRC) connection re-establishment After the terminal stays in the source cell stably for a period of time, a radio link failure occurs, and the terminal attempts to access a different cell through radio resource control (RRC) connection re-establishment.
  • RRC radio resource control
  • the terminal fails to access the target cell, or access to the target cell succeeds but a radio link failure occurs soon, and the terminal reestablishes an RRC connection and tries to access the source cell.
  • the terminal fails to access the target cell, or access to the target cell succeeds but a radio link failure occurs soon, and the terminal re-establishes an RRC connection and tries to access a different cell than the target cell and source cell.
  • the terminal fails to access the target cell, or access to the target cell succeeds but a radio link failure occurs soon, and the terminal re-establishes an RRC connection and tries to access a different cell than the target cell and source cell.
  • Step S21 the terminal is handed over from cell 1 to cell 2.
  • Step S22 If a handover failure or a radio link failure occurs during the handover process or just after the handover is completed, the terminal records the radio link failure information in the RLF.
  • Step S23 The terminal re-accesses or RRC connection re-establishment occurs to access cell 3, and the access may succeed or fail.
  • Step S24 The terminal records the CGI information of the access cell for re-accessing or RRC connection re-establishment in the RLF.
  • Step S25 The terminal accesses the cell 4, and obtains the RLF information reserved by the terminal in the cell 4.
  • Cell 4 may be the same cell as cell 3.
  • Step S26 Cell 4 sends a failure message to cell 2.
  • Step S27 Cell 2 analyzes that premature handover occurs, and cell 1 needs to optimize parameters to solve, and cell 2 sends a notification message to cell 1.
  • Step S30 The terminal has been stably connected to cell 1 for a long period of time.
  • Step S31 If a radio link failure occurs, the terminal records the radio link failure information in the RLF.
  • Step S32 The terminal re-accesses or RRC connection re-establishment occurs to access cell 2, and the access may succeed or fail.
  • Step S33 The terminal records the CGI information of the access cell for re-accessing or RRC connection re-establishment in the RLF.
  • Step S34 The terminal accesses cell 3 and obtains the RLF information reserved by the terminal.
  • Cell 3 and cell 2 may be the same cell.
  • Step S35 Cell 3 sends a failure message to cell 1.
  • Cell 1 analyzes that a late handover has occurred, and optimizes its own handover parameters.
  • the aforementioned cells 1 to 4 may be cells in the same base station, or may be cells in different base stations. If it is a cell within the same base station, the related message is an internal message of the base station, and if it is a cell within a different base station, the related message is an inter-base station interface message.
  • Cells 1 to 4 may be EPC systems or 5GC systems, and may be 4G (corresponding to LTE) or 5G (corresponding to NR) access technologies.
  • the terminal after a handover failure or a radio link failure occurs, the terminal only records the CGI information of the accessed cell after re-accessing or re-establishing access to the eNB base station.
  • this information was used as a basis for analyzing MRO failure, the information was incomplete.
  • the time information also needs to be judged: if the handover fails or the re-access occurs soon after the wireless link fails, it means that the re-accessed cell and the original handover or wireless link failed Failures are related and may have MRO issues; if the time interval is long, it means that the relevance is not significant, and MRO issues should not be considered.
  • the present disclosure provides a method for reporting and acquiring wireless link failure information, a terminal, and a network side device.
  • the method for reporting wireless link failure information in the embodiment of the present disclosure, applied to a terminal includes:
  • Step 41 Perform radio link failure RLF information recording during the process of radio resource control RRC connection re-establishment or RRC connection establishment by the terminal;
  • the RLF information (optionally, the RLF information may be RLF REPORT) includes: Tracking Area Code (TAC) and Tracking Area Identity (TAI) of the cell the terminal accesses.
  • TAC Tracking Area Code
  • TAI Tracking Area Identity
  • the RLF information is related to the time when the terminal re-accesses or re-establishes access.
  • system identifier is used to indicate one of the following:
  • the access cell is a packet core network (EPC) system
  • the access cell is the fifth-generation communication core network (5GC) system;
  • 5GC fifth-generation communication core network
  • the access cell is the Universal Terrestrial Radio Access (UTRA) system;
  • UTRA Universal Terrestrial Radio Access
  • the access cell is a wireless fidelity (WIFI) system.
  • WIFI wireless fidelity
  • Step 42 Report the RLF information to the network side device.
  • step 41 when the terminal sends the RRC connection re-establishment request or the RRC connection establishment request, the RLF information is recorded.
  • the terminal when the terminal sends an RRC connection establishment request, only when the terminal fails to switch or the radio link fails, the RRC connection establishment request is triggered for the first time, and then RLF information recording is performed. During the connection process, RLF information is no longer recorded.
  • the RLF information can be sent to the network side device through air interface signaling.
  • the RLF information is transferred to the network-side device.
  • the RLF information is transferred between the network-side devices or within the network-side device.
  • the terminal can realize the transmission of RLF information within the network side device through the F1 interface and/or the E1 interface; if the network side device can realize direct communication, the terminal can realize the RLF information transmission through the Xn interface and/or X2 interface. Transmission between network-side devices; if direct communication between network-side devices is not possible, RLF information needs to be forwarded through the core network. At this time, the RLF information is mainly transmitted between the core network and the core network through the NG interface and/or S1 interface. Transmission between network side devices.
  • the embodiments of the present disclosure mainly adopt the following two implementation manners, which are described in detail below.
  • the RLF information also includes: access time information, and the time information is used to indicate the length of time from a handover failure or a radio link failure to re-access or re-establishment of access. .
  • the time length from the handover failure or the wireless link failure to the re-access or re-establishment of the access is recorded on the terminal. This time length is for the network side equipment to perform During MRO, it is judged whether the RLF information can be used.
  • the RLF information should also include the cell global identification code (CGI) of the access cell.
  • CGI cell global identification code
  • the CGI of the access cell must be recorded in the RLF information, that is, in this implementation mode
  • the terminal in addition to recording the CGI of the accessed cell, the terminal also needs to record at least one of the TAC, TAI, and system identification of the accessed cell, and also needs to record the access time information .
  • eNB1 and eNB2 in Figure 5 are LTE base stations connected to the EPC system, and NG-RAN (5G Radio Access Network) is connected to the 5GC system, which may be NR base station cells or LTE base station cells.
  • NG-RAN 5G Radio Access Network
  • Step S51 The terminal is handed over from eNB1 to NG-RAN.
  • Step S52 If a handover failure or a radio link failure occurs during the handover process or just after the handover is completed, the terminal records the radio link failure information in the RLF.
  • Step S53 The terminal re-accesses or RRC connection re-establishment occurs to access eNB2, and the access may succeed or fail.
  • Step S54 Add the TAC and/or TAI of the access cell and/or the system identification of the access cell in the RLF, and also need to record time information;
  • the TAC and/or TAI of the access cell and/or the system identification of the access cell recorded by the terminal may be referred to as access information.
  • the RRC connection re-establishment process is initiated in step S53, in addition to recording the CGI of the accessed cell, it is also necessary to record the TAC and/or TAI and/or the system identification of the accessed cell, that is, to identify whether the accessed cell is
  • the EPC system is still a 5GC system; and it also needs to record the access time information, that is, the length of time from the occurrence of a wireless link failure or handover failure in step S52 to the initiation of a re-establishment attempt to access. or
  • the RRC establishment process in addition to recording the CGI of the accessed cell, it is also necessary to record the TAC and/or TAI and/or the system identification of the accessed cell, that is, to identify that the accessed cell is an EPC system It is still a 5GC system; and it also needs to record the access time information, that is, the length of time from the occurrence of radio link failure or handover failure in step S52 to the RRC establishment attempt to access; it should be noted that in this case, the recorded The RRC establishment of the access cell is the cell that is the first attempt to access after the radio link fails or the handover fails. If the subsequent RRC connection process occurs again, the information of the accessed cell is no longer recorded.
  • Step S55 The terminal accesses another base station, and obtains the RLF information reserved by the terminal at the other base station.
  • Other base stations may be the same base station as eNB2.
  • Step S56 The other base stations send the failure message to the NG-RAN.
  • Step S57 NG-RAN analyzes that premature handover occurs, and eNB1 needs to optimize parameters to solve, and NG-RAN sends a notification message to eNB1.
  • NG-eNB1 and NG-eNB2 in Figure 6 are the cells of the LTE base station connected to the 5GC system, and gNB is the cell of the NR base station connected to the 5GC system .
  • the NG-RAN in Figure 7 is connected to the 5GC system, which may be an NR base station cell or an LTE base station cell; the eNB is an LTE base station cell connected to the EPC system.
  • the 5GC system which may be an NR base station cell or an LTE base station cell
  • the eNB is an LTE base station cell connected to the EPC system.
  • Step S70 The terminal has been stably connected to the NG-RAN for a long period of time.
  • Step S71 If a radio link failure occurs, the terminal records the radio link failure information in the RLF.
  • Step S72 The terminal re-accesses or RRC connection re-establishment occurs to access the eNB, and the access may succeed or fail.
  • Step S73 The terminal records the CGI information of the access cell for re-access or RRC connection re-establishment in the RLF, adds the TAC and/or TAI of the access cell and/or the system identification of the access cell, and also needs to record time information .
  • the RRC connection re-establishment process is initiated in step S72, in addition to recording the CGI of the accessed cell, it is also necessary to record the TAC and/or TAI and/or the system identification of the cell, that is, to identify that the accessed cell is the EPC system It is also a 5GC system; and it is also necessary to record the access time information, that is, the length of time from the occurrence of the radio link failure in step S71 to the RRC re-establishment attempt to access. or
  • the RRC establishment process in addition to recording the CGI of the accessed cell, it is also necessary to record the TAC and/or TAI and/or the system identification of the cell, that is, to identify whether the accessed cell is the EPC system or 5GC. System; and also need to record the access time information, that is, the length of time from the occurrence of the radio link failure in step S71 to the RRC establishment attempt to access; it should be noted that in this case, the recorded RRC establishment attempt to access The cell is the cell that attempts to access for the first time after the radio link fails. If the RRC connection process occurs again in the future, the information of the accessed cell is no longer recorded.
  • Step S74 The terminal accesses other base stations, and obtains the RLF information reserved by the terminal.
  • Other base stations and eNB may be the same base station.
  • Step S75 The other base stations send the failure message to the NG-RAN.
  • NG-RAN analyzed that a late handover occurred and optimized its own handover parameters.
  • the NG-eNB in Figure 8 is the LTE base station lower cell connected to the 5GC system, and the gNB is the NR base station lower cell connected to the 5GC system.
  • the method of the embodiment of the present disclosure further includes:
  • the first timer is started.
  • the first timer may be considered as an MRO-related timer, that is, a MRO-related timer.
  • step 41 is as follows:
  • the terminal sends the RRC connection re-establishment request or the RRC connection establishment request, if the first timer is in the running period, the RLF information is recorded.
  • the terminal when the terminal sends the RRC connection re-establishment request or the RRC connection establishment request, if the first timer is not in the running period, the terminal does not record the RLF information.
  • the recording of RLF information is only performed during the operation of the first timer, and when the first timer expires, the recording of RLF information is no longer performed, so as to ensure that the recorded RLF information is able to be recorded.
  • the network side device can use the RLF information to perform MRO.
  • the RLF information should also include the cell global identification code (CGI) of the access cell.
  • CGI cell global identification code
  • the CGI of the access cell must be recorded in the RLF information, that is, in this implementation mode In the process of RRC connection re-establishment or RRC connection establishment, the terminal needs to record at least one of the TAC, TAI and system identification of the accessed cell in addition to the CGI of the accessed cell during the running of the first timer.
  • CGI cell global identification code
  • the method in the embodiments of the present disclosure further includes:
  • the configuration information may include information about the start time of the first timer and the timing duration of the timer.
  • scenario five mainly describes the principle of the timer solution. It should be noted that scenario five includes specific scenarios of scenarios one to four above, and the network side may be the network side structure in scenarios one to four described above.
  • Step S90 The network side configures the MRO timer for the terminal
  • Step S91 If handover failure or radio link failure may occur, the terminal side starts the MRO timer.
  • Step S92 RRC connection establishment and re-access or RRC connection re-establishment may occur in the terminal.
  • Step S93 The terminal judges that the MRO timer is still running, and adds recording information to the RLF information as follows; if the MRO timer is not running, no information recording is performed.
  • step S92 when the RRC connection re-establishment process is initiated in step S92, in addition to recording the CGI of the accessed cell, it is also necessary to record the TAC and/or TAI and/or the system identification of the cell, that is, to identify that the accessed cell is an EPC system Or 5GC system; or
  • the RRC establishment process in addition to recording the CGI of the accessed cell, it is also necessary to record the TAC and/or TAI and/or the system identification of the cell, that is, to identify whether the accessed cell is the EPC system or 5GC. System; Further, in this case, the recorded RRC establishment attempt to access the cell is the first attempt to access the cell after the radio link fails. If the subsequent RRC connection process occurs again, the information of the accessed cell is no longer recorded .
  • Step S94 The MRO timer expires and the operation is stopped.
  • Step S95 The terminal accesses the network side and obtains the RLF information reserved by the terminal.
  • the embodiments of the present disclosure record RLF information including at least one of the TAC, TAI, and system identity of the cell that the terminal accesses during the RRC connection re-establishment or RRC connection establishment process of the terminal, and Reporting the recorded RLF information to the network side device improves the MRO function, improves the accuracy of the MRO, and improves the performance of the handover.
  • the method for acquiring radio link failure information in the embodiment of the present disclosure, applied to a network side device includes:
  • Step 101 Receive a radio link failure RLF information sent by a terminal
  • the RLF information includes at least one of a tracking area code TAC, a tracking area identification code TAI, and a system identifier of the cell that the terminal accesses, and the RLF information is related to the time when the terminal re-accesses or re-establishes access.
  • the RLF information further includes: access time information, and the time information is used to indicate the length of time for the terminal to re-access or re-establish access from a handover failure or a radio link failure.
  • the method before the receiving the radio link failure RLF information sent by the terminal, the method further includes:
  • the configuration information of the first timer is sent to the terminal through air interface signaling.
  • system identifier is used to indicate one of the following:
  • the access cell is the packet core network EPC system
  • the access cell is the fifth-generation communication core network 5GC system;
  • the access cell is the universal terrestrial wireless access UTRA system
  • the access cell is a wireless fidelity WIFI system.
  • the radio link failure RLF information sent by the receiving terminal includes:
  • the RLF information is transferred between network-side devices or within network-side devices.
  • the interface involved in transmitting the RLF information includes at least one of the following:
  • the RLF information also includes: the cell global identification code (CGI) of the access cell.
  • CGI cell global identification code
  • an embodiment of the present disclosure provides a terminal 110, including:
  • the recording module 111 is used for recording radio link failure RLF information when the terminal is performing radio resource control RRC connection re-establishment or RRC connection establishment.
  • the RLF information includes: the tracking area code TAC and the tracking area identification code of the cell that the terminal accesses At least one of TAI and system identification, wherein the RLF information is related to the time when the terminal re-accesses or re-establishes access;
  • the reporting module 112 is configured to report the RLF information to the network side device.
  • the recording module 111 is used for:
  • RLF information recording is performed.
  • the RLF information further includes: access time information, and the time information is used to indicate the length of time from the failure of the handover or the failure of the radio link to the re-access or re-establishment of the access.
  • the method further includes:
  • the start module is used to start the first timer when the terminal fails to switch or the wireless link fails;
  • the recording module 111 is used to:
  • the terminal sends the RRC connection re-establishment request or the RRC connection establishment request, if the first timer is in the running period, the RLF information is recorded.
  • the method further includes:
  • the first acquiring module is configured to acquire the configuration information of the first timer sent by the network side device through air interface signaling.
  • the method further includes:
  • the execution module is used for when the terminal sends the RRC connection re-establishment request or the RRC connection establishment request, if the first timer is not in the running period, the terminal does not record the RLF information.
  • the recording module 111 is configured to:
  • the RLF information recording is performed when an RRC connection establishment request is triggered for the first time after a handover failure or a radio link failure occurs in the terminal.
  • system identifier is used to indicate one of the following:
  • the access cell is the packet core network EPC system
  • the access cell is the fifth-generation communication core network 5GC system;
  • the access cell is the universal terrestrial wireless access UTRA system
  • the access cell is a wireless fidelity WIFI system.
  • reporting module 112 is configured to:
  • the RLF information also includes: the cell global identification code (CGI) of the access cell.
  • CGI cell global identification code
  • this terminal embodiment is a terminal corresponding to the foregoing method embodiment one-to-one, and all implementation manners in the foregoing method embodiment are applicable to the terminal embodiment, and the same technical effect can also be achieved.
  • an embodiment of the present disclosure also provides a terminal 120, including a processor 121, a transceiver 122, a memory 123, and a program stored on the memory 123 and running on the processor 121; wherein The transceiver 122 is connected to the processor 121 and the memory 123 through a bus interface, where the processor 121 is used to read a program in the memory and execute the following process:
  • the radio link failure RLF information includes: the tracking area code TAC of the cell that the terminal accesses, the tracking area identification code TAI, and the system identifier. At least one item, wherein the RLF information is related to the time when the terminal re-accesses or re-establishes access;
  • the RLF information is reported to the network side device through the transceiver 122.
  • the bus architecture may include any number of interconnected buses and bridges, and specifically one or more processors represented by the processor 121 and various circuits of the memory represented by the memory 123 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described herein.
  • the bus interface provides the interface.
  • the transceiver 122 may be a plurality of elements, including a transmitter and a transceiver, and provide a unit for communicating with various other devices on a transmission medium.
  • the user interface 124 may also be an interface capable of externally connecting internally required equipment, and the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 121 is responsible for managing the bus architecture and general processing, and the memory 123 can store data used by the processor 121 when performing operations.
  • the processor executes the procedure of recording the radio link failure RLF information during the radio resource control RRC connection re-establishment or the RRC connection establishment process of the terminal, the following steps are implemented:
  • RLF information recording is performed.
  • the RLF information further includes: access time information, and the time information is used to indicate the length of time from the failure of the handover or the failure of the radio link to the re-access or re-establishment of the access.
  • the processor further implements the following steps when executing the program:
  • the processor implements the following steps when executing the procedure of RLF information recording when the terminal sends an RRC connection re-establishment request or an RRC connection establishment request:
  • the terminal sends the RRC connection re-establishment request or the RRC connection establishment request, if the first timer is in the running period, the RLF information is recorded.
  • processor further implements the following steps when executing the program:
  • processor further implements the following steps when executing the program:
  • the terminal When the terminal sends the RRC connection re-establishment request or the RRC connection establishment request, if the first timer is not in the running period, the terminal does not record the RLF information.
  • the processor when the terminal sends an RRC connection establishment request, the processor implements the following steps when executing the procedure for recording RLF information:
  • the RLF information recording is performed when an RRC connection establishment request is triggered for the first time after a handover failure or a radio link failure occurs in the terminal.
  • system identifier is used to indicate one of the following:
  • the access cell is the packet core network EPC system
  • the access cell is the fifth-generation communication core network 5GC system;
  • the access cell is the universal terrestrial wireless access UTRA system
  • the access cell is a wireless fidelity WIFI system.
  • the RLF information also includes: the cell global identification code (CGI) of the access cell.
  • CGI cell global identification code
  • the embodiment of the present disclosure also provides a computer-readable storage medium on which a computer program is stored, wherein the computer program implements the steps of the method for reporting wireless link failure information applied to a terminal when the computer program is executed by a processor.
  • an embodiment of the present disclosure provides a network side device 130, including:
  • the receiving module 131 is configured to receive the radio link failure RLF information sent by the terminal;
  • the RLF information includes at least one of a tracking area code TAC, a tracking area identification code TAI, and a system identifier of the cell that the terminal accesses, and the RLF information is related to the time when the terminal re-accesses or re-establishes access.
  • the RLF information further includes: access time information, and the time information is used to indicate the length of time for the terminal to re-access or re-establish access from a handover failure or a radio link failure.
  • the method before the receiving module 131 receives the radio link failure RLF information sent by the terminal, the method further includes:
  • the sending module is used to send the configuration information of the first timer to the terminal through air interface signaling.
  • system identifier is used to indicate one of the following:
  • the access cell is the packet core network EPC system
  • the access cell is the fifth-generation communication core network 5GC system;
  • the access cell is the universal terrestrial wireless access UTRA system
  • the access cell is a wireless fidelity WIFI system.
  • the receiving module 131 is configured to:
  • the RLF information is transferred between network-side devices or within network-side devices.
  • the interface involved in transmitting the RLF information includes at least one of the following:
  • the RLF information also includes: the cell global identification code (CGI) of the access cell.
  • CGI cell global identification code
  • the network-side device embodiment is a one-to-one corresponding to the above-mentioned method embodiment. All implementations in the above-mentioned method embodiment are applicable to the network-side device embodiment, and the same can be achieved. Technical effect.
  • an embodiment of the present disclosure also provides a network side device 140, including a processor 141, a transceiver 142, a memory 143, and a program stored on the memory 143 and running on the processor 141
  • the transceiver 142 is connected to the processor 141 and the memory 143 through a bus interface, where the processor 141 is used to read the program in the memory and execute the following process:
  • the RLF information includes at least one of a tracking area code TAC, a tracking area identification code TAI, and a system identifier of the cell that the terminal accesses, and the RLF information is related to the time when the terminal re-accesses or re-establishes access.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 141 and various circuits of the memory represented by the memory 143 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are all known in the art, so they will not be further described in this article.
  • the bus interface provides the interface.
  • the transceiver 142 may be a plurality of elements, including a transmitter and a transceiver, and provide a unit for communicating with various other devices on the transmission medium.
  • the processor 141 is responsible for managing the bus architecture and general processing, and the memory 143 can store data used by the processor 141 when performing operations.
  • the RLF information further includes: access time information, and the time information is used to indicate the length of time from the failure of the handover or the failure of the radio link to the re-access or re-establishment of the access.
  • the processor further implements the following steps when executing the program:
  • the configuration information of the first timer is sent to the terminal through air interface signaling.
  • system identifier is used to indicate one of the following:
  • the access cell is the packet core network EPC system
  • the access cell is the fifth-generation communication core network 5GC system;
  • the access cell is the universal terrestrial wireless access UTRA system
  • the access cell is a wireless fidelity WIFI system.
  • the processor further implements the following steps when executing the program:
  • the RLF information is transferred between network-side devices or within network-side devices.
  • the interface involved in transmitting the RLF information includes at least one of the following:
  • the RLF information also includes: the cell global identification code (CGI) of the access cell.
  • CGI cell global identification code
  • the network side device can be the base station (BTS) in Global System of Mobile Communications (GSM) or Code Division Multiple Access (CDMA), or it can be broadband code division multiple access.
  • the base station (NodeB, NB) in the address (Wideband Code Division Multiple Access, WCDMA) can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in the future 5G network
  • the base station ng-NB Next Generation Node B
  • a centralized control unit Central Unit, CU
  • DU distributed control unit
  • the embodiments of the present disclosure also provide a computer-readable storage medium on which a computer program is stored, wherein the computer program is executed by a processor to implement the steps of the method for acquiring wireless link failure information applied to a network side device.
  • the division of the various modules of the above network equipment and the terminal is only a division of logical functions, and may be fully or partially integrated into one physical entity in actual implementation, or may be physically separated.
  • these modules can all be implemented in the form of software called by processing elements; they can also be implemented in the form of hardware; some modules can be implemented in the form of calling software by processing elements, and some of the modules can be implemented in the form of hardware.
  • the determining module may be a separately established processing element, or it may be integrated in a chip of the above-mentioned device for implementation.
  • each step of the above method or each of the above modules can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.
  • each module, unit, sub-unit or sub-module may be one or more integrated circuits configured to implement the above method, for example: one or more application specific integrated circuits (ASIC), or one or Multiple microprocessors (digital signal processors, DSP), or, one or more field programmable gate arrays (Field Programmable Gate Array, FPGA), etc.
  • ASIC application specific integrated circuits
  • DSP digital signal processors
  • FPGA Field Programmable Gate Array
  • the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call program codes.
  • these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip

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Abstract

本公开提供了一种无线链路失败信息上报、获取方法、终端及网络侧设备。无线链路失败信息上报方法，应用于终端，包括：在终端进行无线资源控制RRC连接重建立或RRC连接建立过程中，进行无线链路失败RLF信息记录，RLF信息包括：终端接入小区的跟踪区代码TAC、跟踪区识别码TAI和系统标识中的至少一项，其中，RLF信息与终端重新接入或重建立接入的时间相关；将RLF信息上报给网络侧设备。

Description

无线链路失败信息上报、获取方法、终端及网络侧设备
相关申请的交叉引用
本申请主张在2020年4月8日在中国提交的中国专利申请号No.202010282825.2的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，特别涉及一种无线链路失败信息上报、获取方法、终端及网络侧设备。
背景技术
新空口(New Radio，NR)R16也引入了移动健壮性优化(Mobility Robustness Optimisation，MRO)特性，主要解决移动性过程中的参数优化问题。在切换失败的场景下，终端只记录了接入小区的小区全球标识(Cell Global Identity，CGI)信息，但是还缺少一些必要信息，导致MRO可能存在误判的现象。
发明内容
本公开实施例提供一种无线链路失败信息上报、获取方法、终端及网络侧设备，以解决相关技术中在切换失败的场景下，终端只记录了接入小区的CGI，可能会导致MRO误判的问题。
为了解决上述技术问题，本公开实施例提供无线链路失败信息上报方法，应用于终端，包括：
在终端进行无线资源控制RRC连接重建立或RRC连接建立过程中，进行无线链路失败RLF信息记录，RLF信息包括：终端接入小区的跟踪区代码TAC、跟踪区识别码TAI和系统标识中的至少一项，其中，所述RLF信息与终端重新接入或重建立接入的时间相关；
将所述RLF信息上报给网络侧设备。
可选地，所述在终端进行无线资源控制RRC连接重建立或RRC连接建 立过程中，进行无线链路失败RLF信息记录，包括：
在终端发送RRC连接重建立请求或RRC连接建立请求时，进行RLF信息记录。
进一步地，所述RLF信息中还包括：接入的时间信息，所述时间信息用于指示终端从切换失败或者无线链路失败到重新接入或重建立接入的时间长度。
进一步地，在所述在终端发送RRC连接重建立请求或RRC连接建立请求时，进行RLF信息记录之前，还包括：
在终端发生切换失败或者无线链路失败时，启动第一定时器；
所述在终端发送RRC连接重建立请求或RRC连接建立请求时，进行RLF信息记录，包括：
在终端发送RRC连接重建立请求或RRC连接建立请求时，若所述第一定时器处于运行期间，则记录RLF信息。
可选地，在所述在终端发生切换失败或者无线链路失败时，启动第一定时器之前，还包括：
获取网络侧设备通过空口信令发送的第一定时器的配置信息。
具体地，在终端发送RRC连接建立请求的情况下，所述进行RLF信息记录，包括：
在终端发生切换失败或者无线链路失败后第一次触发RRC连接建立请求时，进行RLF信息记录。
具体地，所述系统标识用于指示以下一项：
接入小区为分组核心网EPC系统；
接入小区为第五代通信核心网5GC系统；
接入小区为通用地面无线接入UTRA系统；
接入小区为无线保真WIFI系统。
具体地，所述将所述RLF信息上报给网络侧设备，包括：
通过空口信令，发送RLF信息给网络侧设备。
可选地，所述RLF信息中还包括：接入小区的小区全球识别码CGI。
本公开实施例还提供一种无线链路失败信息获取方法，应用于网络侧设 备，包括：
接收终端发送的无线链路失败RLF信息；
其中，RLF信息包括：终端接入小区的跟踪区代码TAC、跟踪区识别码TAI和系统标识中的至少一项，所述RLF信息与终端重新接入或重建立接入的时间相关。
可选地，所述RLF信息中还包括：接入的时间信息，所述时间信息用于指示终端从切换失败或者无线链路失败到重新接入或重建立接入的时间长度。
可选地，在所述接收终端发送的无线链路失败RLF信息之前，还包括：
通过空口信令，发送第一定时器的配置信息给终端。
具体地，所述系统标识用于指示以下一项：
接入小区为分组核心网EPC系统；
接入小区为第五代通信核心网5GC系统；
接入小区为通用地面无线接入UTRA系统；
接入小区为无线保真WIFI系统。
具体地，所述接收终端发送的无线链路失败RLF信息，包括：
通过空口信令接收终端发送的RLF信息；
其中，所述RLF信息在网络侧设备间进行传递或网络侧设备内进行传递。
进一步地，传递所述RLF信息所涉及的接口包括以下至少一项：
Xn、X2、NG、S1、F1和E1。
具体地，所述RLF信息中还包括：接入小区的小区全球识别码CGI。
本公开实施例还提供一种终端，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序；所述处理器执行所述程序时实现以下步骤：
在终端进行无线资源控制RRC连接重建立或RRC连接建立过程中，进行无线链路失败RLF信息记录，RLF信息包括：终端接入小区的跟踪区代码TAC、跟踪区识别码TAI和系统标识中的至少一项，其中，所述RLF信息与终端重新接入或重建立接入的时间相关；
将所述RLF信息上报给网络侧设备。
可选地，所述处理器执行所述在终端进行无线资源控制RRC连接重建立 或RRC连接建立过程中，进行无线链路失败RLF信息记录的程序时实现以下步骤：
在终端发送RRC连接重建立请求或RRC连接建立请求时，进行RLF信息记录。
进一步地，所述RLF信息中还包括：接入的时间信息，所述时间信息用于指示终端从切换失败或者无线链路失败到重新接入或重建立接入的时间长度。
进一步地，所述处理器执行所述程序时还实现以下步骤：
在终端发生切换失败或者无线链路失败时，启动第一定时器；
所述处理器执行所述在终端发送RRC连接重建立请求或RRC连接建立请求时，进行RLF信息记录的程序时实现以下步骤：
在终端发送RRC连接重建立请求或RRC连接建立请求时，若所述第一定时器处于运行期间，则记录RLF信息。
可选地，所述处理器执行所述程序时还实现以下步骤：
获取网络侧设备通过空口信令发送的第一定时器的配置信息。
可选地，在终端发送RRC连接建立请求的情况下，所述处理器执行所述进行RLF信息记录的程序时实现以下步骤：
在终端发生切换失败或者无线链路失败后第一次触发RRC连接建立请求时，进行RLF信息记录。
具体地，所述系统标识用于指示以下一项：
接入小区为分组核心网EPC系统；
接入小区为第五代通信核心网5GC系统；
接入小区为通用地面无线接入UTRA系统；
接入小区为无线保真WIFI系统。
具体地，所述处理器执行所述将所述RLF信息上报给网络侧设备的程序时实现以下步骤：
通过空口信令，发送RLF信息给网络侧设备。
具体地，所述RLF信息中还包括：接入小区的小区全球识别码CGI。
本公开实施例还提供一种网络侧设备，包括：存储器、处理器及存储在 所述存储器上并可在所述处理器上运行的程序；所述处理器执行所述程序时实现以下步骤：
通过收发机接收终端发送的无线链路失败RLF信息；
其中，RLF信息包括：终端接入小区的跟踪区代码TAC、跟踪区识别码TAI和系统标识中的至少一项，所述RLF信息与终端重新接入或重建立接入的时间相关。
可选地，所述RLF信息中还包括：接入的时间信息，所述时间信息用于指示终端从切换失败或者无线链路失败到重新接入或重建立接入的时间长度。
可选地，所述处理器执行所述程序时还实现以下步骤：
通过空口信令，发送第一定时器的配置信息给终端。
具体地，所述系统标识用于指示以下一项：
接入小区为分组核心网EPC系统；
接入小区为第五代通信核心网5GC系统；
接入小区为通用地面无线接入UTRA系统；
接入小区为无线保真WIFI系统。
具体地，所述处理器执行所述程序时还实现以下步骤：
通过空口信令接收终端发送的RLF信息；
其中，所述RLF信息在网络侧设备间进行传递或网络侧设备内进行传递。
进一步地，传递所述RLF信息所涉及的接口包括以下至少一项：
Xn、X2、NG、S1、F1和E1。
具体地，所述RLF信息中还包括：接入小区的小区全球识别码CGI。本公开实施例还提供一种终端，包括：
记录模块，用于在终端进行无线资源控制RRC连接重建立或RRC连接建立过程中，进行无线链路失败RLF信息记录，RLF信息包括：终端接入小区的跟踪区代码TAC、跟踪区识别码TAI和系统标识中的至少一项，其中，所述RLF信息与终端重新接入或重建立接入的时间相关；
上报模块，用于将所述RLF信息上报给网络侧设备。
本公开实施例还提供一种网络侧设备，包括：
接收模块，用于接收终端发送的无线链路失败RLF信息；
其中，RLF信息包括：终端接入小区的跟踪区代码TAC、跟踪区识别码TAI和系统标识中的至少一项，所述RLF信息与终端重新接入或重建立接入的时间相关。
本公开实施例还提供一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现上述的无线链路失败信息上报方法或上述的无线链路失败信息获取方法。
本公开的有益效果是：
上述方案，通过在终端进行RRC连接重建立或RRC连接建立过程中，进行包括终端接入小区的TAC、TAI和系统标识中的至少一项的RLF信息的记录，并将记录的RLF信息上报给网络侧设备，以此，可以提高MRO的准确性。
附图说明
图1表示终端记录并上报RLF报告流程示意图；
图2表示切换过早场景流程示意图；
图3表示切换过迟场景流程示意图；
图4表示本公开实施例的无线链路失败信息上报方法的流程示意图；
图5表示应用于本公开实施例的无线链路失败信息上报方法的场景一的流程示意图；
图6表示应用于本公开实施例的无线链路失败信息上报方法的场景二的流程示意图；
图7表示应用于本公开实施例的无线链路失败信息上报方法的场景三的流程示意图；
图8表示应用于本公开实施例的无线链路失败信息上报方法的场景四的流程示意图；
图9表示应用于本公开实施例的无线链路失败信息上报方法的场景五的流程示意图；
图10表示本公开实施例的无线链路失败信息获取方法的流程示意图；
图11表示本公开实施例的终端的模块示意图；
图12表示本公开实施例的终端的结构图；
图13表示本公开实施例的网络侧设备的模块示意图；
图14表示本公开实施例的网络侧设备的结构图。
具体实施方式
为使本公开的目的、技术方案和优点更加清楚，下面将结合附图及具体实施例对本公开进行详细描述。
在进行本公开实施例的说明时，首先对下面描述中所用到的一些概念进行解释说明。
1、无线链路失败(Radio Link Failure，RLF)报告概括
RLF报告是终端侧记录的一种报告，主要涵盖两种记录场景：切换失败及无线链路失败，一次RLF报告只能表示一种场景的记录。
1.1、RLF报告内容介绍
RLF报告包含如下内容：
S11、终端上一个服务小区的测量结果；
S12、终端确认切换失败或无线链路失败后邻区测量结果；
S13、终端位置信息；
S14、终端失败小区标识信息，如小区全球标识(Cell Global Identity，CGI)/物理小区识别码(Physical Cell Identity，PCI)+频点；
S15、终端重建小区标识信息；
S16、终端上一次确认接收切换发起消息到连接失败经历的时长；
S17、连接失败原因，切换失败或者无线链路失败；
S18、终端连接失败时使用的小区无线网络临时标识(Cell-RadioNetworkTemporaryIdentifier，C-RNTI)；
S19、无线链路失败子原因，T310超时或随机接入问题或者无线链路控制协议(RLC)层达到最大重传或者波束恢复失败(Beam Failure Recovery Failure，BFRF)；
S20、终端确认连接失败后到终端上报该RLF报告经历的时长；
S21、连接失败小区的跟踪区域标识(Tracking Area Code，TAC)；
S22、终端重新接入小区的CGI。
1.2、RLF报告上报流程
RLF报告在终端保存最长48小时，48小时内，终端可以通过专用信令通知网络取回终端侧记录的RLF报告，具体流程如图1所示。
需要说明的是，图1的步骤S101中终端在特定消息中指示网络侧统计的RLF报告数据可取中的特定消息指的是连接建立完成消息或者连接恢复完成消息或者连接重配完成消息或者连接重建完成消息；
网络侧收集完终端上报的RLF报告后，可以通过接口消息将收集到的终端数据转发给其他小区。
2、移动健壮性优化(Mobility Robustness Optimisation，MRO)特性介绍
MRO特性主要用于发现和解决移动性过程中参数配置问题，并定义了3种失败类型：切换过早，切换过迟，切换到错误小区。
切换过迟：终端在源小区稳定驻留一段时间后，发生了无线链路失败，终端通过无线资源控制(RRC)连接重建立试图接入一个不同的小区。
切换过早：在切换过程中终端接入目标小区失败，或者接入目标小区成功但是很快发生了无线链路失败，终端发生RRC连接重建立试图接入源小区。
切换到错误小区：在切换过程中终端接入目标小区失败，或者接入目标小区成功但是很快发生了无线链路失败，终端发生RRC连接重建立试图接入不同于切换目标小区和源小区的其他小区。
切换过早场景如图2所示，具体流程为：
步骤S21：终端由小区1切换到小区2。
步骤S22：若在切换过程中或者切换刚刚完成，就发生了切换失败或者无线链路失败，则终端在RLF中记录无线链路失败信息。
步骤S23：终端重新接入或者发生RRC连接重建立接入小区3，接入可能成功或者失败。
步骤S24：终端在RLF中记录重新接入或者RRC连接重建立接入小区的CGI信息。
步骤S25：终端接入小区4，在小区4获取终端保留的RLF信息。小区4可能和小区3为同一个小区。
步骤S26：小区4将失败消息发送给小区2。
步骤S27：小区2分析发生了过早切换，需要小区1优化参数解决，小区2给小区1发送通知消息。
切换过迟场景如图3所示，具体流程为：
步骤S30：终端已经稳定接入小区1下较长一段时间。
步骤S31：若发生无线链路失败，则终端在RLF中记录无线链路失败信息。
步骤S32：终端重新接入或者发生RRC连接重建立接入小区2，接入可能成功或者失败。
步骤S33：终端在RLF中记录重新接入或者RRC连接重建立接入小区的CGI信息。
步骤S34：终端接入小区3，获取终端保留了RLF信息。小区3和小区2可能为同一个小区。
步骤S35：小区3将失败消息发送给小区1。小区1分析发生了过迟切换，优化自身的切换参数。
上述的小区1～4可能为同一个基站内小区，也可能为不同的基站内的小区。如果为同一个基站内小区，相关消息为基站内部消息，如果为不同的基站内小区，相关消息为基站间接口消息。
小区1～4可能为EPC系统也可能为5GC系统，可能为4G(对应LTE)或者5G(对应NR)接入技术。
由上可知，终端在发生切换失败或者无线链路失败后，重新接入或者重建立接入eNB基站后只记录了接入小区的CGI信息。后续该信息作为分析MRO失败的依据时，信息不全。存在如下问题：
1)仅从CGI信息无法判断重新接入或者重建立接入的小区是4G系统还是5G系统，如果是4G系统，说明可能发生了异系统过早或过迟切换，需要优化异系统间切换相关参数，如果是5G系统，说明终端还处在同一系统内，不存在异系统MRO问题。
2)如果发生了重新接入的情况，时间信息也需要进行判断：如果切换失败或者无线链路失败后很快发生了重新接入，说明重新接入的小区和原来的 切换失败或者无线链路失败存在相关性，可能存在MRO问题；如果时间间隔很长，说明相关性不大，不应该考虑MRO问题。
本公开针对上述问题，提供一种无线链路失败信息上报、获取方法、终端及网络侧设备。
如图4所示，本公开实施例的无线链路失败信息上报方法，应用于终端，包括：
步骤41，在终端进行无线资源控制RRC连接重建立或RRC连接建立过程中，进行无线链路失败RLF信息记录；
需要说明的是，该RLF信息(可选地，该RLF信息可以为RLF REPORT)包括：终端接入小区的跟踪区代码(Tracking Area Code，TAC)、跟踪区识别码(Tracking Area Identity，TAI)和系统标识中的至少一项，进一步需要说明的是，该RLF信息与终端重新接入或重建立接入的时间相关。
具体地，该系统标识用于指示以下一项：
A11、接入小区为分组核心网(EPC)系统；
A12、接入小区为第五代通信核心网(5GC)系统；
A13、接入小区为通用地面无线接入(UTRA)系统；
A14、接入小区为无线保真(WIFI)系统。
步骤42，将所述RLF信息上报给网络侧设备。
需要说明的是，步骤41的具体实现方式为：在终端发送RRC连接重建立请求或RRC连接建立请求时，进行RLF信息记录。
进一步需要说明的是，在终端发送RRC连接建立请求的情况下，只有在终端发生切换失败或者无线链路失败后第一次触发RRC连接建立请求时，才进行RLF信息记录，后续如果再发生RRC连接过程，不再记录RLF信息。
还需要说明的是，当终端进行该RLF信息记录后，可以通过空口信令将该RLF信息发送给网络侧设备。
进一步地，当将RLF信息传递给网络侧设备之后，该RLF信息在网络侧设备间进行传递或网络侧设备内进行传递。
具体地，终端可以通过F1接口和/或E1接口实现RLF信息在网络侧设备内部的传递；若网络侧设备之间可以实现直接通信，则终端可以通过Xn接 口和/或X2接口实现RLF信息在网络侧设备之间的传递；若网络侧设备之间不可以实现直接通信，则需要通过核心网进行RLF信息的转发，此时主要是通过NG接口和/或S1接口实现RLF信息在核心网与网络侧设备之间的传递。
进一步需要说明的是，为了保证RLF信息与终端重新接入或重建立接入的时间相关，本公开实施例主要采用如下两种实现方式，下面对这两种实现方式进行详细说明如下。
实现方式一、
具体地，在此种情况下，该RLF信息中还包括：接入的时间信息，所述时间信息用于指示终端从切换失败或者无线链路失败到重新接入或重建立接入的时间长度。
需要说明的是，此种情况下，是在RLF信息记录时，记录上终端从切换失败或者无线链路失败到重新接入或重建立接入的时间长度，此时间长度供网络侧设备在进行MRO时，判断是否可以使用该RLF信息。
还需要说明的是，该RLF信息中还应当包括：接入小区的小区全球识别码(CGI)，该接入小区的CGI是必须要记录在RLF信息的，也就是说，此种实现方式下，终端在RRC连接重建立或RRC连接建立过程中，除了记录接入小区的CGI，还需要记录接入小区的TAC、TAI和系统标识中的至少一项，并且还需要记录接入的时间信息。
下面就几种实现场景进行具体说明如下。
场景一、异系统过早切换场景
如图5所示，图5中的eNB1和eNB2为连接到EPC系统的LTE基站下小区，NG-RAN(5G无线接入网)连接到5GC系统，可能为NR基站小区或者LTE基站小区。
具体地实现过程为：
步骤S51：终端由eNB1切换到NG-RAN。
步骤S52：若在切换过程中或者切换刚刚完成，就发生了切换失败或者无线链路失败，则终端在RLF中记录无线链路失败信息。
步骤S53：终端重新接入或者发生RRC连接重建立接入eNB2，接入可能成功或者失败。
步骤S54：在RLF中增加记录接入小区的TAC和/或TAI和/或接入小区的系统标识，并且还需要记录时间信息；
需要说明的是，终端记录的接入小区的TAC和/或TAI和/或接入小区的系统标识，可以称之为接入信息。
具体地，在步骤S53发起RRC连接重建立过程时，除了记录接入小区的CGI之外，还需要记录TAC和/或TAI和/或接入小区的系统标识，也就是标识接入的小区是EPC系统还是5GC系统；并且还需要记录接入的时间信息，也就是从步骤S52发生无线链路失败或者切换失败到发起重建立尝试接入的时间长度。或者
具体地，在步骤S53发起RRC建立过程时，除了记录接入小区的CGI之外，还需要记录TAC和/或TAI和/或接入小区的系统标识，也就是标识接入的小区是EPC系统还是5GC系统；并且还需要记录接入的时间信息，也就是从步骤S52发生无线链路失败或者切换失败到RRC建立尝试接入的时间长度；需要说明的是，在此种情况下，记录的RRC建立接入小区为无线链路失败或者切换失败后第一次尝试接入的小区，后续如果再发生RRC连接过程，不再记录接入的小区信息。
步骤S55：终端接入其他基站，在其他基站获取终端保留的RLF信息。其他基站可能和eNB2为同一个基站。
步骤S56：其他基站将失败消息发送给NG-RAN。
步骤S57：NG-RAN分析发生了过早切换，需要eNB1优化参数解决，NG-RAN给eNB1发送通知消息。
场景二、同系统过早切换场景
同系统过早切换和上述的场景一中的异系统场景类似，图6中的NG-eNB1和NG-eNB2为连接到5GC系统的LTE基站下小区，gNB为连接到5GC系统的NR基站下小区。
终端需要记录的信息内容和场景一相同，此处不再描述，具体实现过程如图6所示。
场景三、异系统过迟切换场景
如图7所示，图7中的NG-RAN连接到5GC系统，可能为NR基站小 区或者LTE基站小区；eNB为连接到EPC系统的LTE基站下小区。
具体地实现过程为：
步骤S70：终端已经稳定接入NG-RAN下较长一段时间。
步骤S71：若发生无线链路失败，则终端在RLF中记录无线链路失败信息。
步骤S72：终端重新接入或者发生RRC连接重建立接入eNB，接入可能成功或者失败。
步骤S73：终端在RLF中记录重新接入或者RRC连接重建立接入小区的CGI信息，增加记录接入小区的TAC和/或TAI和/或接入小区的系统标识，并且还需要记录时间信息。
具体地，在步骤S72发起RRC连接重建立过程时，除了记录接入小区的CGI之外，还需要记录TAC和/或TAI和/或小区的系统标识，也就是标识接入的小区是EPC系统还是5GC系统；并且还需要记录接入的时间信息，也就是从步骤S71发生无线链路失败到RRC重建立尝试接入的时间长度。或者
具体地，在步骤S72发起RRC建立过程时，除了记录接入小区的CGI之外，还需要记录TAC和/或TAI和/或小区的系统标识，也就是标识接入的小区是EPC系统还是5GC系统；并且还需要记录接入的时间信息，也就是从步骤S71发生无线链路失败到RRC建立尝试接入的时间长度；需要说明的是，在此种情况下，记录的RRC建立尝试接入小区为无线链路失败后第一次尝试接入的小区，后续如果再发生RRC连接过程，不再记录接入的小区信息。
步骤S74：终端接入其他基站，获取终端保留了RLF信息。其他基站和eNB可能为同一个基站。
步骤S75：其他基站将失败消息发送给NG-RAN。NG-RAN分析发生了过迟切换，优化自身的切换参数。
场景四、同系统过迟切换场景
同系统过迟切换和场景三中的异系统场景类似，图8中的NG-eNB为连接到5GC系统的LTE基站下小区，gNB为连接到5GC系统的NR基站下小区。
需要记录的信息内容和场景三相同，此处不再描述，具体实现过程如图 8所示。
实现方式二、
具体地，在此种情况下，在步骤41之前，本公开实施例的方法，还包括：
在终端发生切换失败或者无线链路失败时，启动第一定时器。
需要说明的是，该第一定时器可以认为是MRO相关的定时器，即与MRO相关的定时器。
进一步地，步骤41的具体实现方式为：
在终端发送RRC连接重建立请求或RRC连接建立请求时，若所述第一定时器处于运行期间，则记录RLF信息。
还需要说明的是，在终端发送RRC连接重建立请求或RRC连接建立请求时，若所述第一定时器未处于运行期间，则终端不进行RLF信息的记录。
也就是说，此种情况下，只在第一定时器运行期间进行RLF信息的记录，当第一定时器超时后，便不再进行RLF信息的记录，以此可以保证记录的RLF信息在能够使用的时间范围之内，也就是说，只要网络侧设备能收到该RLF信息，便可利用该RLF信息进行MRO。
还需要说明的是，该RLF信息中还应当包括：接入小区的小区全球识别码(CGI)，该接入小区的CGI是必须要记录在RLF信息的，也就是说，此种实现方式下，终端在RRC连接重建立或RRC连接建立过程中，在第一定时器运行期间，除了记录接入小区的CGI，还需要记录接入小区的TAC、TAI和系统标识中的至少一项。
具体地，为了能保证第一定时器的顺利使用，本公开实施例的方法，还包括：
获取网络侧设备通过空口信令发送的第一定时器的配置信息。
具体地，该配置信息中可以包括第一定时器的启动时刻以及定时器的定时时长的信息。
下面从具体地实现场景对此种方式的实现过程进行具体说明如下。
场景五、异系统过早切换场景
如图9所示，场景五主要描述定时器方案的原理，需要说明的是，场景五包含上述场景一至四的具体场景，网络侧可能为上述场景一至四中的网络 侧结构。
步骤S90：网络侧为终端配置MRO定时器；
步骤S91：若可能发生切换失败或者无线链路失败，则终端侧启动MRO定时器。
步骤S92：终端可能发生RRC连接建立重新接入或者发生RRC连接重建立。
步骤S93：终端判断MRO定时器还在运行，在RLF信息中增加记录信息如下；如果MRO定时器不在运行，不进行信息记录。
具体地，在步骤S92发起RRC连接重建立过程时，除了记录接入小区的CGI之外，还需要记录TAC和/或TAI和/或小区的系统标识，也就是标识接入的小区是EPC系统还是5GC系统；或者
具体地，在步骤S92发起RRC建立过程时，除了记录接入小区的CGI之外，还需要记录TAC和/或TAI和/或小区的系统标识，也就是标识接入的小区是EPC系统还是5GC系统；进一步地，在此种情况下，记录的RRC建立尝试接入小区为无线链路失败后第一次尝试接入的小区，后续如果再发生RRC连接过程，不再记录接入的小区信息。
步骤S94：MRO定时器超时，停止运行。
步骤S95：终端接入网络侧，获取终端保留的RLF信息。
需要说明的是，本公开实施例，通过在终端进行RRC连接重建立或RRC连接建立过程中，进行包括终端接入小区的TAC、TAI和系统标识中的至少一项的RLF信息的记录，并将记录的RLF信息上报给网络侧设备，完善了MRO功能，提高MRO的准确性，提升切换的性能。
如图10所示，本公开实施例的无线链路失败信息获取方法，应用于网络侧设备，包括：
步骤101，接收终端发送的无线链路失败RLF信息；
其中，RLF信息包括：终端接入小区的跟踪区代码TAC、跟踪区识别码TAI和系统标识中的至少一项，所述RLF信息与终端重新接入或重建立接入的时间相关。
可选地，所述RLF信息中还包括：接入的时间信息，所述时间信息用于 指示终端从切换失败或者无线链路失败到重新接入或重建立接入的时间长度。
可选地，在所述接收终端发送的无线链路失败RLF信息之前，还包括：
通过空口信令，发送第一定时器的配置信息给终端。
具体地，所述系统标识用于指示以下一项：
接入小区为分组核心网EPC系统；
接入小区为第五代通信核心网5GC系统；
接入小区为通用地面无线接入UTRA系统；
接入小区为无线保真WIFI系统。
具体地，所述接收终端发送的无线链路失败RLF信息，包括：
通过空口信令接收终端发送的RLF信息；
其中，所述RLF信息在网络侧设备间进行传递或网络侧设备内进行传递。
进一步地，传递所述RLF信息所涉及的接口包括以下至少一项：
Xn、X2、NG、S1、F1和E1。
具体地，所述RLF信息中还包括：接入小区的小区全球识别码CGI。
需要说明的是，上述实施例中所有关于网络侧设备的描述均适用于该无线链路失败信息获取方法的实施例中，也能达到与之相同的技术效果。
如图11所示，本公开实施例提供一种终端110，包括：
记录模块111，用于在终端进行无线资源控制RRC连接重建立或RRC连接建立过程中，进行无线链路失败RLF信息记录，RLF信息包括：终端接入小区的跟踪区代码TAC、跟踪区识别码TAI和系统标识中的至少一项，其中，所述RLF信息与终端重新接入或重建立接入的时间相关；
上报模块112，用于将所述RLF信息上报给网络侧设备。
进一步地，所述记录模块111，用于：
在终端发送RRC连接重建立请求或RRC连接建立请求时，进行RLF信息记录。
可选地，所述RLF信息中还包括：接入的时间信息，所述时间信息用于指示终端从切换失败或者无线链路失败到重新接入或重建立接入的时间长度。
可选地，在所述记录模块111在终端发送RRC连接重建立请求或RRC连接建立请求时，进行RLF信息记录之前，还包括：
启动模块，用于在终端发生切换失败或者无线链路失败时，启动第一定时器；
所述记录模块111，用于：
在终端发送RRC连接重建立请求或RRC连接建立请求时，若所述第一定时器处于运行期间，则记录RLF信息。
进一步地，在所述启动模块在终端发生切换失败或者无线链路失败时，启动第一定时器之前，还包括：
第一获取模块，用于获取网络侧设备通过空口信令发送的第一定时器的配置信息。
进一步地，在所述启动模块在终端发生切换失败或者无线链路失败时，启动第一定时器之后，还包括：
执行模块，用于在终端发送RRC连接重建立请求或RRC连接建立请求时，若所述第一定时器未处于运行期间，则终端不进行RLF信息的记录。
可选地，在终端发送RRC连接建立请求的情况下，所述记录模块111，用于：
在终端发生切换失败或者无线链路失败后第一次触发RRC连接建立请求时，进行RLF信息记录。
具体地，所述系统标识用于指示以下一项：
接入小区为分组核心网EPC系统；
接入小区为第五代通信核心网5GC系统；
接入小区为通用地面无线接入UTRA系统；
接入小区为无线保真WIFI系统。
具体地，所述上报模块112，用于：
通过空口信令，发送RLF信息给网络侧设备。
具体地，所述RLF信息中还包括：接入小区的小区全球识别码CGI。
需要说明的是，该终端实施例是与上述方法实施例一一对应的终端，上述方法实施例中所有实现方式均适用于该终端的实施例中，也能达到相同的技术效果。
如图12所示，本公开实施例还提供一种终端120，包括处理器121、收 发机122、存储器123及存储在所述存储器123上并可在所述处理器121上运行的程序；其中，收发机122通过总线接口与处理器121和存储器123连接，其中，所述处理器121用于读取存储器中的程序，执行下列过程：
在终端进行无线资源控制RRC连接重建立或RRC连接建立过程中，进行无线链路失败RLF信息记录，RLF信息包括：终端接入小区的跟踪区代码TAC、跟踪区识别码TAI和系统标识中的至少一项，其中，所述RLF信息与终端重新接入或重建立接入的时间相关；
通过收发机122将所述RLF信息上报给网络侧设备。
需要说明的是，在图12中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器121代表的一个或多个处理器和存储器123代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机122可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的发送端，用户接口124还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。处理器121负责管理总线架构和通常的处理，存储器123可以存储处理器121在执行操作时所使用的数据。
进一步地，所述处理器执行所述在终端进行无线资源控制RRC连接重建立或RRC连接建立过程中，进行无线链路失败RLF信息记录的程序时实现以下步骤：
在终端发送RRC连接重建立请求或RRC连接建立请求时，进行RLF信息记录。
可选地，所述RLF信息中还包括：接入的时间信息，所述时间信息用于指示终端从切换失败或者无线链路失败到重新接入或重建立接入的时间长度。
可选地，所述处理器执行所述程序时还实现以下步骤：
在终端发生切换失败或者无线链路失败时，启动第一定时器；
所述处理器执行所述在终端发送RRC连接重建立请求或RRC连接建立请求时，进行RLF信息记录的程序时实现以下步骤：
在终端发送RRC连接重建立请求或RRC连接建立请求时，若所述第一定时器处于运行期间，则记录RLF信息。
进一步地，所述处理器执行所述程序时还实现以下步骤：
获取网络侧设备通过空口信令发送的第一定时器的配置信息。
进一步地，所述处理器执行所述程序时还实现以下步骤：
在终端发送RRC连接重建立请求或RRC连接建立请求时，若所述第一定时器未处于运行期间，则终端不进行RLF信息的记录。
可选地，在终端发送RRC连接建立请求的情况下，所述处理器执行所述进行RLF信息记录的程序时实现以下步骤：
在终端发生切换失败或者无线链路失败后第一次触发RRC连接建立请求时，进行RLF信息记录。
具体地，所述系统标识用于指示以下一项：
接入小区为分组核心网EPC系统；
接入小区为第五代通信核心网5GC系统；
接入小区为通用地面无线接入UTRA系统；
接入小区为无线保真WIFI系统。
具体地，所述处理器执行所述将所述RLF信息上报给网络侧设备的程序时实现以下步骤：
通过空口信令，发送RLF信息给网络侧设备。
具体地，所述RLF信息中还包括：接入小区的小区全球识别码CGI。
本公开实施例还提供一种计算机可读存储介质，其上存储有计算机程序，其中，所述计算机程序被处理器执行时实现应用于终端的无线链路失败信息上报方法的步骤。
如图13所示，本公开实施例提供一种网络侧设备130，包括：
接收模块131，用于接收终端发送的无线链路失败RLF信息；
其中，RLF信息包括：终端接入小区的跟踪区代码TAC、跟踪区识别码TAI和系统标识中的至少一项，所述RLF信息与终端重新接入或重建立接入的时间相关。
可选地，所述RLF信息中还包括：接入的时间信息，所述时间信息用于 指示终端从切换失败或者无线链路失败到重新接入或重建立接入的时间长度。
可选地，在所述接收模块131接收终端发送的无线链路失败RLF信息之前，还包括：
发送模块，用于通过空口信令，发送第一定时器的配置信息给终端。
具体地，所述系统标识用于指示以下一项：
接入小区为分组核心网EPC系统；
接入小区为第五代通信核心网5GC系统；
接入小区为通用地面无线接入UTRA系统；
接入小区为无线保真WIFI系统。
具体地，所述接收模块131，用于：
通过空口信令接收终端发送的RLF信息；
其中，所述RLF信息在网络侧设备间进行传递或网络侧设备内进行传递。
进一步地，传递所述RLF信息所涉及的接口包括以下至少一项：
Xn、X2、NG、S1、F1和E1。
具体地，所述RLF信息中还包括：接入小区的小区全球识别码CGI。
需要说明的是，该网络侧设备实施例是与上述方法实施例一一对应的网络侧设备，上述方法实施例中所有实现方式均适用于该网络侧设备的实施例中，也能达到相同的技术效果。
如图14所示，本公开实施例还提供一种网络侧设备140，包括处理器141、收发机142、存储器143及存储在所述存储器143上并可在所述处理器141上运行的程序；其中，收发机142通过总线接口与处理器141和存储器143连接，其中，所述处理器141用于读取存储器中的程序，执行下列过程：
通过收发机接收终端发送的无线链路失败RLF信息；
其中，RLF信息包括：终端接入小区的跟踪区代码TAC、跟踪区识别码TAI和系统标识中的至少一项，所述RLF信息与终端重新接入或重建立接入的时间相关。
需要说明的是，在图14中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器141代表的一个或多个处理器和存储器143代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管 理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机142可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器141负责管理总线架构和通常的处理，存储器143可以存储处理器141在执行操作时所使用的数据。
可选地，所述RLF信息中还包括：接入的时间信息，所述时间信息用于指示终端从切换失败或者无线链路失败到重新接入或重建立接入的时间长度。
可选地，所述处理器执行所述程序时还实现以下步骤：
通过空口信令，发送第一定时器的配置信息给终端。
具体地，所述系统标识用于指示以下一项：
接入小区为分组核心网EPC系统；
接入小区为第五代通信核心网5GC系统；
接入小区为通用地面无线接入UTRA系统；
接入小区为无线保真WIFI系统。
具体地，所述处理器执行所述程序时还实现以下步骤：
通过空口信令接收终端发送的RLF信息；
其中，所述RLF信息在网络侧设备间进行传递或网络侧设备内进行传递。
进一步地，传递所述RLF信息所涉及的接口包括以下至少一项：
Xn、X2、NG、S1、F1和E1。
具体地，所述RLF信息中还包括：接入小区的小区全球识别码CGI。
其中，网络侧设备可以是全球移动通讯(Global System of Mobile communication，GSM)或码分多址(Code Division Multiple Access，CDMA)中的基站(Base Transceiver Station，BTS)，也可以是宽带码分多址(Wideband Code Division Multiple Access，WCDMA)中的基站(NodeB，NB)，还可以是LTE中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者中继站或接入点，或者未来5G网络中的基站ng-NB(Next Generation Node B)或者集中控制单元(Central Unit，CU)或者分布式控制单元(Distribute Unit，DU)等，在此并不限定。
本公开实施例还提供一种计算机可读存储介质，其上存储有计算机程序， 其中，所述计算机程序被处理器执行时实现应用于网络侧设备的无线链路失败信息获取方法的步骤。
需要说明的是，应理解以上网络设备和终端的各个模块的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。且这些模块可以全部以软件通过处理元件调用的形式实现；也可以全部以硬件的形式实现；还可以部分模块通过处理元件调用软件的形式实现，部分模块通过硬件的形式实现。例如，确定模块可以为单独设立的处理元件，也可以集成在上述装置的某一个芯片中实现，此外，也可以以程序代码的形式存储于上述装置的存储器中，由上述装置的某一个处理元件调用并执行以上确定模块的功能。其它模块的实现与之类似。此外这些模块全部或部分可以集成在一起，也可以独立实现。这里所述的处理元件可以是一种集成电路，具有信号的处理能力。在实现过程中，上述方法的各步骤或以上各个模块可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。
例如，各个模块、单元、子单元或子模块可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(Application Specific Integrated Circuit，ASIC)，或，一个或多个微处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)等。再如，当以上某个模块通过处理元件调度程序代码的形式实现时，该处理元件可以是通用处理器，例如中央处理器(Central Processing Unit，CPU)或其它可以调用程序代码的处理器。再如，这些模块可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例，例如除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有 的其它步骤或单元。此外，说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一，例如A和/或B和/或C，表示包含单独A，单独B，单独C，以及A和B都存在，B和C都存在，A和C都存在，以及A、B和C都存在的7种情况。类似地，本说明书以及权利要求中使用“A和B中的至少一个”应理解为“单独A，单独B，或A和B都存在”。
以上所述的是本公开的可选实施方式，应当指出对于本技术领域的普通人员来说，在不脱离本公开所述的原理前提下还可以作出若干改进和润饰，这些改进和润饰也在本公开的保护范围内。

Claims (35)

  1. 一种无线链路失败信息上报方法，应用于终端，包括：
    在终端进行无线资源控制RRC连接重建立或RRC连接建立过程中，进行无线链路失败RLF信息记录，RLF信息包括：终端接入小区的跟踪区代码TAC、跟踪区识别码TAI和系统标识中的至少一项，其中，所述RLF信息与终端重新接入或重建立接入的时间相关；
    将所述RLF信息上报给网络侧设备。
  2. 根据权利要求1所述的无线链路失败信息上报方法，其中，所述在终端进行无线资源控制RRC连接重建立或RRC连接建立过程中，进行无线链路失败RLF信息记录，包括：
    在终端发送RRC连接重建立请求或RRC连接建立请求时，进行RLF信息记录。
  3. 根据权利要求2所述的无线链路失败信息上报方法，其中，所述RLF信息中还包括：接入的时间信息，所述时间信息用于指示终端从切换失败或者无线链路失败到重新接入或重建立接入的时间长度。
  4. 根据权利要求2所述的无线链路失败信息上报方法，其中，在所述在终端发送RRC连接重建立请求或RRC连接建立请求时，进行RLF信息记录之前，还包括：
    在终端发生切换失败或者无线链路失败时，启动第一定时器；
    所述在终端发送RRC连接重建立请求或RRC连接建立请求时，进行RLF信息记录，包括：
    在终端发送RRC连接重建立请求或RRC连接建立请求时，若所述第一定时器处于运行期间，则记录RLF信息。
  5. 根据权利要求4所述的无线链路失败信息上报方法，其中，在所述在终端发生切换失败或者无线链路失败时，启动第一定时器之前，还包括：
    获取网络侧设备通过空口信令发送的第一定时器的配置信息。
  6. 根据权利要求2所述的无线链路失败信息上报方法，其中，在终端发送RRC连接建立请求的情况下，所述进行RLF信息记录，包括：
    在终端发生切换失败或者无线链路失败后第一次触发RRC连接建立请求时，进行RLF信息记录。
  7. 根据权利要求1所述的无线链路失败信息上报方法，其中，所述系统标识用于指示以下一项：
    接入小区为分组核心网EPC系统；
    接入小区为第五代通信核心网5GC系统；
    接入小区为通用地面无线接入UTRA系统；
    接入小区为无线保真WIFI系统。
  8. 根据权利要求1所述的无线链路失败信息上报方法，其中，所述将所述RLF信息上报给网络侧设备，包括：
    通过空口信令，发送RLF信息给网络侧设备。
  9. 根据权利要求1-8任一项所述的无线链路失败信息上报方法，其中，所述RLF信息中还包括：接入小区的小区全球识别码CGI。
  10. 一种无线链路失败信息获取方法，应用于网络侧设备，包括：
    接收终端发送的无线链路失败RLF信息；
    其中，RLF信息包括：终端接入小区的跟踪区代码TAC、跟踪区识别码TAI和系统标识中的至少一项，所述RLF信息与终端重新接入或重建立接入的时间相关。
  11. 根据权利要求10所述的无线链路失败信息获取方法，其中，所述RLF信息中还包括：接入的时间信息，所述时间信息用于指示终端从切换失败或者无线链路失败到重新接入或重建立接入的时间长度。
  12. 根据权利要求10所述的无线链路失败信息获取方法，其中，在所述接收终端发送的无线链路失败RLF信息之前，还包括：
    通过空口信令，发送第一定时器的配置信息给终端。
  13. 根据权利要求10所述的无线链路失败信息获取方法，其中，所述系统标识用于指示以下一项：
    接入小区为分组核心网EPC系统；
    接入小区为第五代通信核心网5GC系统；
    接入小区为通用地面无线接入UTRA系统；
    接入小区为无线保真WIFI系统。
  14. 根据权利要求10所述的无线链路失败信息获取方法，其中，所述接收终端发送的无线链路失败RLF信息，包括：
    通过空口信令接收终端发送的RLF信息；
    其中，所述RLF信息在网络侧设备间进行传递或网络侧设备内进行传递。
  15. 根据权利要求14所述的无线链路失败信息获取方法，其中，传递所述RLF信息所涉及的接口包括以下至少一项：
    Xn、X2、NG、S1、F1和E1。
  16. 根据权利要求10-15任一项所述的无线链路失败信息获取方法，其中，所述RLF信息中还包括：接入小区的小区全球识别码CGI。
  17. 一种终端，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序；其中，所述处理器执行所述程序时实现以下步骤：
    在终端进行无线资源控制RRC连接重建立或RRC连接建立过程中，进行无线链路失败RLF信息记录，RLF信息包括：终端接入小区的跟踪区代码TAC、跟踪区识别码TAI和系统标识中的至少一项，其中，所述RLF信息与终端重新接入或重建立接入的时间相关；
    将所述RLF信息上报给网络侧设备。
  18. 根据权利要求17所述的终端，其中，所述处理器执行所述在终端进行无线资源控制RRC连接重建立或RRC连接建立过程中，进行无线链路失败RLF信息记录的程序时实现以下步骤：
    在终端发送RRC连接重建立请求或RRC连接建立请求时，进行RLF信息记录。
  19. 根据权利要求18所述的终端，其中，所述RLF信息中还包括：接入的时间信息，所述时间信息用于指示终端从切换失败或者无线链路失败到重新接入或重建立接入的时间长度。
  20. 根据权利要求18所述的终端，其中，所述处理器执行所述程序时还实现以下步骤：
    在终端发生切换失败或者无线链路失败时，启动第一定时器；
    所述处理器执行所述在终端发送RRC连接重建立请求或RRC连接建立 请求时，进行RLF信息记录的程序时实现以下步骤：
    在终端发送RRC连接重建立请求或RRC连接建立请求时，若所述第一定时器处于运行期间，则记录RLF信息。
  21. 根据权利要求20所述的终端，其中，所述处理器执行所述程序时还实现以下步骤：
    获取网络侧设备通过空口信令发送的第一定时器的配置信息。
  22. 根据权利要求18所述的终端，其中，在终端发送RRC连接建立请求的情况下，所述处理器执行所述进行RLF信息记录的程序时实现以下步骤：
    在终端发生切换失败或者无线链路失败后第一次触发RRC连接建立请求时，进行RLF信息记录。
  23. 根据权利要求17所述的终端，其中，所述系统标识用于指示以下一项：
    接入小区为分组核心网EPC系统；
    接入小区为第五代通信核心网5GC系统；
    接入小区为通用地面无线接入UTRA系统；
    接入小区为无线保真WIFI系统。
  24. 根据权利要求17所述的终端，其中，所述处理器执行所述将所述RLF信息上报给网络侧设备的程序时实现以下步骤：
    通过空口信令，发送RLF信息给网络侧设备。
  25. 根据权利要求17-24任一项所述的终端，其中，所述RLF信息中还包括：接入小区的小区全球识别码CGI。
  26. 一种网络侧设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序；其中，所述处理器执行所述程序时实现以下步骤：
    通过收发机接收终端发送的无线链路失败RLF信息；
    其中，RLF信息包括：终端接入小区的跟踪区代码TAC、跟踪区识别码TAI和系统标识中的至少一项，所述RLF信息与终端重新接入或重建立接入的时间相关。
  27. 根据权利要求26所述的网络侧设备，其中，所述RLF信息中还包 括：接入的时间信息，所述时间信息用于指示终端从切换失败或者无线链路失败到重新接入或重建立接入的时间长度。
  28. 根据权利要求26所述的网络侧设备，其中，所述处理器执行所述程序时还实现以下步骤：
    通过空口信令，发送第一定时器的配置信息给终端。
  29. 根据权利要求26所述的网络侧设备，其中，所述系统标识用于指示以下一项：
    接入小区为分组核心网EPC系统；
    接入小区为第五代通信核心网5GC系统；
    接入小区为通用地面无线接入UTRA系统；
    接入小区为无线保真WIFI系统。
  30. 根据权利要求26所述的网络侧设备，其中，所述处理器执行所述程序时还实现以下步骤：
    通过空口信令接收终端发送的RLF信息；
    其中，所述RLF信息在网络侧设备间进行传递或网络侧设备内进行传递。
  31. 根据权利要求30所述的网络侧设备，其中，传递所述RLF信息所涉及的接口包括以下至少一项：
    Xn、X2、NG、S1、F1和E1。
  32. 根据权利要求26-31任一项所述的网络侧设备，其中，所述RLF信息中还包括：接入小区的小区全球识别码CGI。
  33. 一种终端，包括：
    记录模块，用于在终端进行无线资源控制RRC连接重建立或RRC连接建立过程中，进行无线链路失败RLF信息记录，RLF信息包括：终端接入小区的跟踪区代码TAC、跟踪区识别码TAI和系统标识中的至少一项，其中，所述RLF信息与终端重新接入或重建立接入的时间相关；
    上报模块，用于将所述RLF信息上报给网络侧设备。
  34. 一种网络侧设备，包括：
    接收模块，用于接收终端发送的无线链路失败RLF信息；
    其中，RLF信息包括：终端接入小区的跟踪区代码TAC、跟踪区识别码 TAI和系统标识中的至少一项，所述RLF信息与终端重新接入或重建立接入的时间相关。
  35. 一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至9任一项所述的无线链路失败信息上报方法或如权利要求10至16任一项所述的无线链路失败信息获取方法。
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EP4135393A1 (en) 2023-02-15
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KR20220164578A (ko) 2022-12-13
CN113498104A (zh) 2021-10-12
EP4135393A4 (en) 2023-09-13

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