WO2023071561A1 - 无线链路失败处理方法、终端、基站、系统、设备及介质 - Google Patents

无线链路失败处理方法、终端、基站、系统、设备及介质 Download PDF

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Publication number
WO2023071561A1
WO2023071561A1 PCT/CN2022/118391 CN2022118391W WO2023071561A1 WO 2023071561 A1 WO2023071561 A1 WO 2023071561A1 CN 2022118391 W CN2022118391 W CN 2022118391W WO 2023071561 A1 WO2023071561 A1 WO 2023071561A1
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Prior art keywords
link failure
access network
network node
terminal
carrier frequency
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PCT/CN2022/118391
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English (en)
French (fr)
Inventor
信金灿
许森
熊尚坤
刘昕
韩飞
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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    • 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
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a wireless link failure processing method, terminal, base station, system, equipment, and medium.
  • Network self-optimization (Self Orginazing Network, SON) can adapt to the flatness and flexibility of the network structure, and reduce the operator's labor costs for network operation and maintenance, and has attracted increasing attention.
  • MRO Mobility Robustness Optimization, mobile robustness optimization
  • radio link failure During the mobile process of the terminal, the failure of cell handover will seriously affect the experience of the user. Generally, not all cell handover failures caused by radio link failure (RLF) can be recovered quickly, but cell handover failures caused by radio link failures will not only affect user experience, but also affect network capacity.
  • the radio link failure is mainly caused by unreasonable cell handover parameter settings. Therefore, when a radio link failure occurs, the cell base station where the radio link failure occurs sends a radio link failure report to the successfully handed over cell base station. , so that the base station of the successfully handed over cell notifies the base station of the radio link failure to optimize related handover parameters.
  • a radio link failure processing method includes: when a radio link failure occurs between the terminal and the first radio access network node, all The wireless link failure information within the carrier frequency point number range is recorded in the wireless link failure report, and the terminal is switched to the second wireless access network node; the second wireless access network node sends the terminal information to the terminal A request message; the terminal returns a terminal information response message to the second wireless access network node, wherein the terminal information response message includes wireless links within the range of all carrier frequency point numbers supported by the first wireless access network node A path failure report; the second radio access network node sends a radio link failure indication message to the first radio access network node according to the terminal information response message, wherein the radio link failure indication message contains A radio link failure report including all carrier frequency point number ranges supported by the first radio access network node; the first radio access network node reports to the first radio access network node Adjust the switching parameters of all carrier frequency point number ranges set by the network node.
  • the first radio access network node is an ng-eNB node
  • the second radio access network node is a gNB node
  • the method further includes: supporting an E-UTRA base station cell
  • the carrier frequency point number range of 0 ⁇ 65535 and the extended carrier frequency point number range 65536 ⁇ 262143 are recorded in the wireless link failure report.
  • the first radio access network node is a gNB node
  • the second radio access network node is an ng-eNB node
  • the method further includes: the carrier supported by the NR base station cell The frequency point number ranges from 0 to 262143, and is recorded in the wireless link failure report.
  • a wireless link failure processing method which is applied to a terminal, and the method includes: receiving a terminal information request message sent by a second wireless access network node; The network access node returns a terminal information response message, wherein the terminal information response message includes radio link failure reports of all carrier frequency point number ranges supported by the first radio access network node.
  • a radio link failure processing method which is applied to a first radio access network node, and the method includes: receiving a radio link failure indication message sent by a second radio access network node , wherein the radio link failure indication message includes: a radio link failure report recorded when a radio link failure occurs between the terminal and the first radio access network node, where the radio link failure report records wireless link failure information within the range of all carrier frequency point numbers supported by the first wireless access network node; according to the wireless link failure indication message, all carrier frequency points set by the first wireless access network node Adjust the switching parameters of the number range; wherein, the radio link failure report is a terminal information response received from the terminal after the second radio access network node sends a terminal information request message to the terminal obtained from the message.
  • a wireless link failure processing method which is applied to a second wireless access network node, and the method includes: sending a terminal information request message to the terminal; receiving terminal information returned by the terminal A response message, wherein the terminal information response message includes a radio link failure report recorded when a radio link failure occurs between the terminal and the first radio access network node, and the radio link failure report records the Radio link failure information within the range of all carrier frequency point numbers supported by the first radio access network node.
  • a terminal which includes: a radio link failure reporting module, configured to send a terminal information request message sent by the second radio access network node, and report to the second The radio access network node returns a terminal information response message, wherein the terminal information response message includes radio link failure reports of all carrier frequency point number ranges supported by the first radio access network node.
  • a base station which includes: a radio link failure indication message receiving module, configured to receive a radio link failure indication message from another base station, wherein the radio link failure
  • the indication message includes: a wireless link failure report recorded when the terminal and the base station fails, and the wireless link failure report records all wireless links within the range of carrier frequency point numbers supported by the base station Failure information; a handover parameter adjustment module, configured to adjust the handover parameters of all carrier frequency point number ranges set by the base station according to the wireless link failure indication message.
  • a base station which includes: a terminal information request module, configured to send a terminal information request message to a terminal; a terminal information acquisition module, configured to receive a terminal information response returned by the terminal message, wherein the terminal information response message includes a radio link failure report recorded when a radio link failure occurs between the terminal and other base stations, and the radio link failure report records that the base station supporting the radio link failure occurs Wireless link failure information within the range of all carrier frequency point numbers.
  • a communication system includes: a terminal, a first radio access network node, and a second radio access network node; wherein, the terminal is configured to act as the When a radio link failure occurs between the terminal and the first radio access network node, record the radio link failure information within the range of all carrier frequency point numbers supported by the first radio access network node into the radio link failure report, and switching the terminal to a second radio access network node; the second radio access network node communicates with the terminal and is configured to send a terminal information request message to the terminal and receive terminal information returned by the terminal A response message, sending a radio link failure indication message to the first radio access network node according to the terminal information response message, wherein the terminal information response message and the radio link failure indication message include the first A radio link failure report for all carrier frequency point numbers supported by the radio access network node; the first radio access network node is configured to report the first radio link failure indication message to the first radio link Adjust the switching parameters of all carrier frequency point number ranges
  • an electronic device including: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to execute the executable instructions to execute the above wireless link failure processing method.
  • a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned wireless link failure processing method is implemented.
  • FIG. 1 shows a schematic diagram of a communication system in an embodiment of the present disclosure
  • FIG. 2 shows a schematic diagram of the architecture of a 5G communication system in an embodiment of the present disclosure
  • FIG. 3 shows a schematic diagram of a terminal information interaction process in an embodiment of the present disclosure
  • FIG. 4 shows a schematic diagram of a radio link failure indication process in an embodiment of the present disclosure
  • FIG. 5 shows a flowchart of a method for processing a wireless link failure in an embodiment of the present disclosure
  • FIG. 6 shows a schematic diagram of communication system interaction in an embodiment of the present disclosure
  • FIG. 7 shows a flow chart of a wireless link failure processing method applied to a terminal in an embodiment of the present disclosure
  • FIG. 8 shows a flowchart of a wireless link failure processing method applied to a base station in an embodiment of the present disclosure
  • FIG. 9 shows a flowchart of another method for processing a radio link failure applied to a base station in an embodiment of the present disclosure
  • FIG. 10 shows a schematic diagram of internal components of a terminal in an embodiment of the present disclosure
  • FIG. 11 shows a schematic diagram of internal components of a base station in an embodiment of the present disclosure
  • FIG. 12 shows a schematic diagram of internal components of another base station in an embodiment of the present disclosure.
  • Fig. 13 shows a structural block diagram of an electronic device in an embodiment of the present disclosure.
  • Example embodiments will now be described more fully with reference to the accompanying drawings.
  • Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of example embodiments to those skilled in the art.
  • the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
  • the present disclosure provides a wireless link failure processing method, terminal, base station, system, equipment, and medium, at least to a certain extent, overcoming the problem of some carrier frequency point number ranges caused by different carrier frequency point number ranges supported by different base stations in the related art. A technical problem where switching parameters cannot be optimized.
  • the wireless link failure processing method, terminal, base station, system, equipment, and medium provided by the embodiments of the present disclosure provide wireless link failure information within the range of all carrier frequency points supported by the source base station where the wireless link failure occurs with the terminal Recorded in the radio link failure report, so that the terminal can send the radio link failure reports of all carrier frequency point ranges of the source base station to the target base station, and also enable the target base station to parse the radio link failure reports of all carrier frequency point ranges, and The wireless link failure reports of all carrier frequency ranges are sent to the source base station, so that the source base station can optimize and adjust the handover parameters of all carrier frequency ranges, thereby reducing the probability of wireless link failure during the movement process.
  • the communication system includes: a terminal 100 , a first radio access network node 101 and a second radio access network node 102 .
  • the terminal 100 is configured to record the wireless failure link failure information within the range of all carrier frequency point numbers supported by the first wireless access network node 101 when the wireless link failure occurs between the terminal 100 and the first wireless access network node 101 Go to the radio link failure report, and switch to the second radio access network node 102.
  • the second radio access network node 102 communicates with the terminal 100, and is configured to send a terminal information request message to the terminal 100, receive a terminal information response message returned by the terminal 100, and send a message to the first radio access network node according to the terminal information response message.
  • 101 sends a radio link failure indication message, wherein the terminal information response message and the radio link failure indication message include radio link failure reports of all carrier frequency point number ranges supported by the first radio access network node 101, that is, radio link failure reports
  • the link failure report includes wireless failure link failure information within the range of all carrier frequency point numbers supported by the first radio access network node 101.
  • the first radio access network node 101 is configured to adjust the switching parameters of all carrier frequency point number ranges set by the first radio access network node 101 according to the radio link failure indication message.
  • the above-mentioned first wireless access network node 101 may be a base station (also called a source base station) that fails to have a wireless link with the terminal 100;
  • the base station of the link also called the target base station.
  • the terminal 100 will switch to the second radio access network node 102 and establish a radio link with the second radio access network node 102 .
  • the first radio access network node 101 and the second radio access network node 102 in the embodiment of the present disclosure may be base stations using the same communication protocol, or base stations using different communication protocols.
  • the communication system shown in FIG. 1 may be, but not limited to, a 5G communication system.
  • Figure 2 shows a schematic diagram of the architecture of a 5G communication system in an embodiment of the present disclosure.
  • the 5G access network consists of gNB (NR system base station) and ng-eNB (LTE evolved base station that can access 5G core network) consists of two types of nodes.
  • the gNB node is a node that provides the NR (New Radio, new air interface) base station to the terminal (User Equipment, UE) control plane and user plane protocol, and connects to the 5G core network through the NG interface; the ng-eNB node provides the LTE (Long Term Evolution, long-term evolution)
  • the control plane and user plane protocol nodes from the base station to the UE are connected to the 5G core network through the NG interface. Communication between gNB nodes and gNB nodes, between ng-eNB nodes and ng-eNB nodes, and between gNB nodes and ng-eNB nodes is performed through the Xn interface.
  • the first radio access network node (NG-RAN1) in the embodiment of the present disclosure may be an ng-eNB node or a gNB node; similarly, the second radio access network node (NG-RAN1) in the embodiment of the present disclosure
  • the network node (NG-RAN2) may be a gNB node or an ng-eNB node.
  • the first radio access network node and the second radio access network node use the same standard or different standards.
  • the first radio access network node is an ng-eNB node
  • the second radio access network node is a gNB node
  • the first radio access network node The network node is a gNB node
  • the second radio access network node is an ng-eNB node.
  • the terminal fails in the wireless link at the first wireless access network node, it is handed over to the second wireless access network node, and the second wireless access network node needs to pass the wireless link failure report including all carrier frequency point numbers through The Xn interface is sent to the first radio access network node, so that the first radio access network node can optimize handover parameters and reduce the probability of radio link failure.
  • the second wireless access network node needs to send the RLF report including the RLF-related frequency point parameters specified in the TS 36.331 standard to the first wireless access network node.
  • the RLF-related frequency point parameters specified in the TS 36.331 standard include RLF-Report-r9 and RLF-Report-v9e0 (extended carrier frequency point number range).
  • the terminal cannot report the RLF report of the extended carrier frequency point number range to the second wireless access network node, and the second wireless access network node
  • the access network node cannot send the RLF report extending the carrier frequency point number range to the first radio access network node.
  • the first radio access network node is a gNB and the second radio access network node is an ng-eNB node
  • the ng-eNB node cannot support all carrier frequency ranges supported by the gNB node, and considering other For compatibility issues, the ng-eNB node may not be able to parse the relevant content of the gNB node, and the second radio access network node cannot send the RLF report extending the carrier frequency point number range to the first radio access network node. Therefore, in the 5G communication system, in order to achieve enhanced mobile robustness and reduce the probability of wireless link failure, the current standards and implementations still have the following problems:
  • the terminal can only report the RLF report of the cell with the frequency point corresponding to RLF-Report-r9 to the target base station through the terminal response message (that is, the above-mentioned
  • the second radio access network node that successfully establishes a wireless link with the terminal cannot support the RLF reporting of the cell corresponding to the extended carrier frequency point number range (RLF-Report-v9e0), and therefore cannot update the parameters related to the extended carrier frequency point number range Optimization cannot reduce the probability of terminal RLF.
  • the target base station that is, the above-mentioned second wireless access network node that successfully establishes a wireless link with the terminal
  • the RLF report related to the cell with the extended carrier frequency number range of the E-UTRAN base station cannot be optimized for parameters related to the extended carrier frequency point number range, and the probability of RLF occurring at the terminal cannot be reduced, and the network capacity cannot be suppressed.
  • the current 3GPP NR protocol cannot meet the requirements, and needs to be enhanced in a new way to meet the requirements of resource allocation and optimization.
  • the terminal reports the RLF related information of all EUTRA frequency point cells to the target base station (that is, the first in the embodiment of the present disclosure) 2 radio access network node) to assist the target base station to optimize related parameters.
  • the target base station can indicate the RLF report of the extended carrier frequency point number range to the source base station (that is, the first wireless access network node in the embodiment of the present disclosure), so that the source base station can report the RLF of the extended carrier frequency point number range.
  • the failure indication message sent by the target base station through the Xn interface sends the RLF report of the extended carrier frequency point number range cell to the source base station.
  • the source base station optimizes the RLF related parameters of the extended carrier frequency point number range to reduce its Risk of RLF.
  • the solutions provided by the embodiments of the present disclosure have little impact on terminals, and have good backward compatibility and deployment feasibility. In addition, it enhances the existing protocol without introducing a new protocol process, making minor changes to the existing protocol and making it less difficult to implement.
  • UE In order to analyze connection failure, UE (ie terminal) provides RLF report to the network.
  • the UE saves the latest RLF report, including LTE and NR RLF reports, until 48 hours after the network obtains the RLF report or detects a connection failure.
  • After the network obtains the RLF report it will send the RLF report to the source cell of the UE, so as to help the source cell optimize handover parameters and improve the handover process.
  • the network when the network needs the terminal to report an RLF report, the network sends a terminal information request message to the terminal, and after receiving the terminal information request message, the terminal returns to the network a terminal information response carrying the RLF report information.
  • the RLF-related information carried in the UE Information Response contains the following information:
  • ARFCN-ValueEUTRA is used to indicate the ARFCN (Absolute Radio Frequency Channel Number, Absolute Radio Frequency Channel Number) applicable to the downlink, uplink or two-way (TDD) E-UTRA carrier frequency.
  • LTE extends the maximum value of ARFCN in R9, that is, ARFCN-ValueEUTRA-v9e0 shown above.
  • ARFCN-ValueEUTRA-v9e0 the specific values of ARFCN-ValueUTRA and ARFCN-ValueEUTRA-v9e0 can be known:
  • the RLF report in order to support MRO in the NG-RAN node, the RLF report needs to support both LTE RLF Report and NR RLF Report.
  • the RLF related information carried by UE Information Response contains the following information:
  • measResult-RLF-Report-EUTRA-r16 includes E-UTRA RLF-Report-r9 in TS 36.331.
  • the target base station when a terminal experiences RLF at a base station, it will handover to the target base station. Then, the target base station will obtain the RLF report from the terminal and send the RLF report to the source base station. After receiving the RLF report, the source base station will switch to the target base station.
  • the parameters are optimized to reduce the probability of terminal RLF.
  • FIG. 4 is a schematic diagram of a radio link failure indication process in an embodiment of the present disclosure.
  • the second radio access network node (NG-RAN2) parses out the first The corresponding frequency cell where RLF occurs in the radio access network node (NG-RAN1), then put the RLF report information of the corresponding frequency cell of the first radio access network node into the radio link failure indication message, and send the message to the first radio access network node.
  • the first radio access network node parses the RLF report of the corresponding frequency cell, and optimizes the handover parameters of the corresponding frequency cell according to the recorded measurement information to reduce the RLF probability , improve terminal performance and network capacity.
  • embodiments of the present disclosure also provide a wireless link failure processing method, which can be applied to but not limited to the communication system shown in FIG. 1 , and the method can be executed by any electronic device with computing and processing capabilities.
  • Fig. 5 shows a flow chart of a wireless link failure processing method in the embodiment of the present disclosure.
  • the wireless link failure processing method provided in the embodiment of the present disclosure includes steps S502-S510.
  • step S502 when a wireless link failure occurs between the terminal and the first wireless access network node, the wireless link failure information within the range of all carrier frequency point numbers supported by the first wireless access network node is recorded in the wireless link failure report, and switch to the second radio access network node.
  • the terminal when the terminal fails on the radio link at the first radio access network node due to timer overtime, random access failure, mobility and other related issues, the terminal first connects all the links supported by the first radio access network node to The radio link failure information within the carrier frequency point number range is recorded in the radio link failure report, and then handed over to the second radio access network node.
  • the wireless link failure report includes but is not limited to the following information:
  • the terminal After the RLF occurs in the terminal at the first radio access network node, in order to ensure the service performance of the terminal, the terminal is handed over to the second radio access network node through a handover process.
  • the above S502 can be implemented through the following steps: when the wireless link between the terminal and the first wireless access network node fails, the terminal switches to the second wireless access network node, and obtains the first wireless access network node and the range of carrier frequency points supported by the second wireless access network node; if the range of all carrier frequency points supported by the first wireless access network node is greater than or equal to the carrier frequency supported by the second wireless access network node point number range, record the carrier frequency point number range of the first wireless access network node in the wireless link failure report; if the range of all carrier frequency point numbers supported by the first wireless access network node is smaller than the second wireless access network node
  • the carrier frequency point number range supported by the access network node, the carrier frequency point number range of the second wireless access network node can be recorded as the range of all carrier frequency point numbers supported by the first wireless access network node until the wireless link fails In the report, this can expand the range of the carrier frequency point number.
  • the range of all carrier frequency point numbers supported by the first wireless access network node includes: the range of carrier frequency point numbers supported by the E-UTRA base station cell is 0-65535 and the extended carrier frequency point number range is 65536-262143 , or the range of all carrier frequency point numbers supported by the first radio access network node includes: the range of carrier frequency point numbers supported by the NR base station cell is 0-262143.
  • the above S502 can set the carrier frequency number range 0 to 65535 and the extended carrier number supported by the E-UTRA base station cell The frequency point number ranges from 65536 to 262143, and is recorded in the wireless link failure report.
  • the carrier frequency point number range 0 to 262143 supported by the NR base station cell can be recorded in the radio link failure report .
  • step S504 the second radio access network node sends a terminal information request message to the terminal.
  • the second radio access network node After the terminal is connected to the second radio access network node, the second radio access network node sends an information request message to the terminal to obtain relevant information about the terminal (including but not limited to: RLF information, mobile history information of the terminal, Measurement information and related information such as terminal connection failure).
  • the terminal information request message includes but is not limited to the following information:
  • RLF report request message Boolean type, when it is true, it means that the terminal needs to report information related to wireless link failure;
  • 2Movement history report request message Boolean type, when it is true, it means that the terminal needs to report mobile history related information
  • 3Record measurement report request message Boolean type, when it is true, it means that the terminal needs to report the recorded measurement information
  • Connection failure report request message Boolean type, when true, it means that the terminal needs to report connection failure related information.
  • step S506 the terminal returns a terminal information response message to the second radio access network node, wherein the terminal information response message includes radio link failure reports of all carrier frequency ranges supported by the first radio access network node.
  • the terminal When the terminal receives the terminal information request message sent by the second radio access network node and the security is activated, if the terminal finds that the type of the RLF report request message in the request message is true, the terminal will pass the terminal request response message. The RLF report is reported to the second radio access network node.
  • the RLF report is RLF information related to the first radio access network node
  • the RLF report in the terminal request response message needs to be discussed in the following two cases.
  • the NR RLF report in the terminal response message includes but is not limited to the following information:
  • the second case when the first wireless access network node is an E-UTRAN base station, and the type of RLF reporting in the terminal information request message is true, and the terminal supports cross-RAT (Radio Access Technology, wireless access technology) RLF reporting , when the RLF-related variable stored by the terminal contains RLF information or handover failure information, and the RPLMN is included in the PLMN identification list in the RLF-related variable, the terminal will send the E-UTRAN RLF-related information to the first 2.
  • a wireless access network node when the first wireless access network node is an E-UTRAN base station, and the type of RLF reporting in the terminal information request message is true, and the terminal supports cross-RAT (Radio Access Technology, wireless access technology) RLF reporting , when the RLF-related variable stored by the terminal contains RLF information or handover failure information, and the RPLMN is included in the PLMN identification list in the RLF-related variable, the terminal will send the E-UTRAN RLF-related information to the first 2.
  • the RLF-related information reported by the terminal needs to include the RLF conditions that occur in cells with all LTE frequencies.
  • the E-UTRAN RLF report in the terminal response message includes but is not limited to the following information:
  • E-UTRAN cell frequency related information where RLF occurs such as E-UTRA RLF-Report-r9 intermediate frequency related parameters in TS 36.331;
  • the absolute frequency point number range of carrier frequency 0 ⁇ 65535;
  • E-UTRAN cell extended carrier frequency point range related information where RLF occurs such as E-UTRA RLF-Report-v9e0 frequency point related parameters in TS 36.331;
  • the absolute frequency point number range of the carrier frequency 65536 ⁇ 262143.
  • the second radio access network node sends a radio link failure indication message to the first radio access network node according to the terminal information response message, wherein the radio link failure indication message includes the information of the first radio access network Wireless link failure report for all carrier frequency ranges supported by the node.
  • the second radio access network node learns that RLF has occurred in the terminal at the source base station by analyzing the information therein. At this time, the second radio access network node sends radio link failure indication information to the first radio access network node through the Xn interface, which carries the terminal RLF report, to inform the first radio access network node that the terminal is controlled by NG-RAN1 RLF occurred in the cell.
  • the radio link failure indication information includes the information included in the terminal RLF report, which needs to be determined according to the first radio access network node.
  • the radio link failure indication information contains NR RLF related information, including but not limited to the following information:
  • the radio link failure indication information includes LTE RLF related information, including but not limited to the following information:
  • the absolute frequency point number range of carrier frequency 0 ⁇ 65535;
  • the absolute frequency point number range of the carrier frequency 65536 ⁇ 262143.
  • step S510 the first radio access network node adjusts the switching parameters of all carrier frequency point number ranges set by the first radio access network node according to the radio link failure indication message.
  • Steps S502, S508, and S510 are optional steps.
  • the first radio access network node After the first radio access network node obtains the RLF-related information (RLF report) from the radio link failure indication information, it combines the recorded measurement information or handover-related configuration information to analyze the cause of RLF in the terminal, and analyze the relevant The parameters are optimized to reduce the probability of RLF and improve terminal performance.
  • RLF report the RLF-related information
  • the terminal sets the range of carrier frequency point numbers supported by the cell of the E-UTRA base station
  • the wireless link failure information within the range of 0 to 65535 and the extended carrier frequency point number 65536 to 262143 is recorded in the wireless link failure report;
  • the second wireless access network node sends a terminal information request message to the terminal;
  • the terminal sends a terminal information request message to the second wireless
  • the access network node returns a terminal information response message, wherein the terminal information response message includes a radio link failure report with a carrier frequency point number range of 0 to 65535 and an extended carrier frequency point number range of 65536 to 262143;
  • the second wireless access network node Send a radio link failure indication message to the first radio access network node according to the terminal information response message, wherein the radio link failure indication message includes a carrier frequency point number range of 0 to 65535 and an extended carrier frequency point
  • the terminal when the first radio access network node is a gNB node and the second radio access network node is an ng-eNB node, the terminal sets the carrier frequency point numbers supported by the NR base station cell in the range of 0 to The wireless link failure information in 262143 is recorded in the wireless link failure report; the second wireless access network node sends a terminal information request message to the terminal; the terminal returns a terminal information response message to the second wireless access network node, wherein, The terminal information response message includes a wireless link failure report with a carrier frequency number ranging from 0 to 262143; the second wireless access network node sends a wireless link failure indication message to the first wireless access network node according to the terminal information response message, Wherein, the radio link failure indication message includes a radio link failure report with a carrier frequency point number ranging from 0 to 262143; the first radio access network node sets the Adjust the switching parameters of the carrier frequency point number range from 0 to 262143.
  • FIG. 6 shows a schematic diagram of communication system interaction in an embodiment of the present disclosure.
  • the terminal saves the RLF after the RLF occurs at the NG-RAN1 node, and then the terminal switches to the NG-RAN2 node.
  • the NG-RAN2 node wants to obtain terminal information
  • the NG-RAN2 node sends a terminal information request message to the terminal; after receiving the message, the terminal reports information such as the RLF report of the NG-RAN1 node to the NG-RAN1 through a terminal information response message.
  • RAN2 node the terminal saves the RLF after the RLF occurs at the NG-RAN1 node, and then the terminal switches to the NG-RAN2 node.
  • the NG-RAN2 node wants to obtain terminal information
  • the NG-RAN2 node sends a terminal information request message to the terminal; after receiving the message, the terminal reports information such as the RLF report of the NG-RAN1 node to the NG-RAN1 through a terminal information response message
  • the NG-RAN2 node After obtaining the terminal information response message, the NG-RAN2 node puts the RLF report information of the NG-RAN1 into the RLF indication message, and sends the RLF indication message to the NG-RAN1 node through the Xn interface. After receiving the RLF indication message, the NG-RAN1 node parses the RLF report in it, and optimizes the relevant handover parameters according to the recorded measurement information, so as to reduce the RLF probability and improve the terminal performance.
  • the terminal information response message sent by the extended terminal to the target base station includes the relevant content in the E-UTRAN RLF report.
  • the measurement results of the EUTRA RLF report in the EUTRA RLF report information are extended, that is, in addition to reporting only the relevant parameters of the E-UTRA RLF-Report-r9 intermediate frequency points pointed out in the existing TS 38.331, the extended carrier frequency point number range is also added.
  • the E-UTRAN RLF related frequency points in the terminal response message after receiving the terminal information response message, NG-RAN2, according to the extended NR standard, checks the RLF frequency points of all NG-RAN1 related frequency point cells. Reports can be parsed for subsequent optimization.
  • the NG-RAN2 node After the NG-RAN2 node receives the terminal information response message, it knows that the source NG-RAN1 node has RLF by parsing the message. At this time, NG-RAN2 sends the RLF report of NG-RAN1 to NG through the wireless link failure indication message. -RAN1 node.
  • the radio link failure indication message is sent through the Xn interface, and the frequency point range of the E-UTRAN RLF report in the terminal RLF report in the radio link failure indication message is extended.
  • the frequency point range of the E-UTRAN RLF report in the terminal RLF report in the radio link failure indication message is extended to support the RLF reporting of the extended carrier frequency point number range related to E-UTRA RLF-Report-v9e0.
  • NG-RAN1 After receiving the radio link failure indication message sent by NG-RAN2, NG-RAN1 analyzes the RLF report involved in it, and combines the recorded measurement information or handover Relevant parameters are optimized to reduce the probability of RLF and improve terminal performance.
  • embodiments of the present disclosure also provide a wireless link failure processing method, which can be applied to but not limited to the terminal shown in FIG. 1 . As shown in FIG. 7 , the method includes the following steps S702-S706.
  • step S702 when the wireless link between the terminal and the first wireless access network node fails, switch to the second wireless access network node, and set all carrier frequency point numbers supported by the first wireless access network node The wireless link failure information recorded in the wireless link failure report.
  • Step S702 is an optional step.
  • step S704 a terminal information request message sent by the second radio access network node is received.
  • step S706 return a terminal information response message to the second radio access network node, wherein the terminal information response message includes radio link failure reports of all carrier frequency point number ranges supported by the first radio access network node.
  • the second radio access network node may also be configured to send a radio link failure indication message to the first radio access network node according to the terminal information response message, so that the first radio access network node responds to the radio link failure indication message according to the radio link failure indication message.
  • the switching parameters of all carrier frequency point number ranges set by the first radio access network node are adjusted, and the radio link failure indication message includes the radio link failure report of all carrier frequency point number ranges supported by the first radio access network node .
  • an embodiment of the present disclosure also provides a radio link failure processing method, which can be applied but not limited to the first radio access network node shown in FIG. base station), as shown in FIG. 8, the method includes the following steps S802-S804.
  • a radio link failure indication message sent by the second radio access network node is received, wherein the radio link failure indication message includes: the information recorded when the radio link failure between the terminal and the first radio access network node occurs
  • the radio link failure report records radio link failure information within the range of all carrier frequency point numbers supported by the first radio access network node.
  • step S804 according to the radio link failure indication message, the handover parameters of all carrier frequency point number ranges set by the first radio access network node are adjusted.
  • the second wireless access network node is further configured to send a terminal information request message to the terminal, and receive a terminal information response message returned by the terminal, wherein the terminal information response message includes all carrier frequency point numbers supported by the first wireless access network node Scope radio link failure report.
  • an embodiment of the present disclosure also provides a wireless link failure processing method, which can be applied but not limited to the second wireless access network node shown in FIG. base station), as shown in FIG. 9, the method includes the following steps S902-S906.
  • step S902 a terminal information request message is sent to the terminal.
  • step S904 a terminal information response message returned by the terminal is received, wherein the terminal information response message includes a radio link failure report recorded when a radio link failure occurs between the terminal and the first radio access network node, and the radio link failure report The radio link failure information within the range of all carrier frequency point numbers supported by the first radio access network node is recorded in .
  • step S906 according to the terminal information response message, send a radio link failure indication message to the first radio access network node, so that the first radio access network node sends a radio link failure indication message to the first radio access network node according to the radio link failure indication message
  • the switching parameters of all carrier frequency point number ranges set by the node are adjusted, and the wireless link failure indication message includes the radio link failure report of all carrier frequency point number ranges supported by the first radio access network node.
  • Step S906 is an optional step.
  • the terminal includes a radio link failure reporting module 102, configured to receive a terminal information request message sent by a second radio access network node , and return a terminal information response message to the second radio access network node, where the terminal information response message includes radio link failure reports of all carrier frequency point number ranges supported by the first radio access network node.
  • a radio link failure reporting module 102 configured to receive a terminal information request message sent by a second radio access network node , and return a terminal information response message to the second radio access network node, where the terminal information response message includes radio link failure reports of all carrier frequency point number ranges supported by the first radio access network node.
  • the terminal includes: a radio link switching module 101 and a radio link failure reporting module 102 .
  • the radio link switching module 101 is configured to, when a radio link failure occurs between the terminal and the first radio access network node, switch the radio links within the range of all carrier frequency point numbers supported by the first radio access network node to The information is recorded in the radio link failure report, and the terminal is switched to the second radio access network node;
  • the radio link failure reporting module 102 is configured to receive the terminal information request message sent by the second radio access network node, and send The second radio access network node returns a terminal information response message, wherein the terminal information response message includes radio link failure reports of all carrier frequency point number ranges supported by the first radio access network node;
  • the second radio access network node is further configured to send a radio link failure indication message to the first radio access network node according to the terminal information response message, so that the first radio access network node
  • the failure indication message adjusts the switching parameters of all carrier frequency point number ranges set by the first radio access network node, and the radio link failure indication message includes all carrier frequency point number ranges supported by the first radio access network node Wireless link failure report.
  • an embodiment of the present disclosure also provides a base station, which includes: a radio link failure indication message receiving module 111 and a handover parameter adjustment module 112 .
  • the radio link failure indication message receiving module 111 is configured to receive radio link failure indication messages from other base stations, wherein the radio link failure indication message includes: the radio link information recorded when the terminal and the base station fail
  • the wireless link failure report records the wireless link failure information within the range of all carrier frequency point numbers supported by the base station in the wireless link failure report;
  • the handover parameter adjustment module 112 is used to set all the wireless link failure information set by the base station according to the wireless link failure indication message. Adjust the switching parameters of the carrier frequency point number range.
  • an embodiment of the present disclosure also provides a base station, the base station includes: a terminal information request module 121, configured to send a terminal information request message to the terminal; a terminal information obtaining module 122, configured to receive the terminal information returned A terminal information response message, wherein the terminal information response message includes a radio link failure report recorded when a radio link failure occurs between the terminal and other base stations, and the radio link failure report records that a radio link failure occurs Failed wireless link failure information within the range of all supported carrier frequency points
  • the base station includes: a terminal information requesting module 121 , a terminal information obtaining module 122 and a radio link failure indicating module 123 .
  • the terminal information request module 121 is used to send a terminal information request message to the terminal;
  • the terminal information acquisition module 122 is used to receive a terminal information response message returned by the terminal, wherein the terminal information response message includes the terminal information response message that the terminal has occurred with other base stations.
  • the wireless link failure report recorded when the wireless link fails, the wireless link failure information in the range of all carrier frequency point numbers supported by the base station where the wireless link failure occurs is recorded in the wireless link failure report;
  • the wireless link failure indication module 123 It is used to send a wireless link failure indication message to the base station where the wireless link failure occurs according to the terminal information response message, so that the base station where the wireless link failure occurs can respond to all the set carrier frequency point number ranges according to the wireless link failure indication message. Handover parameters are adjusted, and the radio link failure indication message includes radio link failure reports of all carrier frequency point number ranges supported by the base station.
  • FIG. 13 An electronic device 1300 according to this embodiment of the present disclosure is described below with reference to FIG. 13 .
  • the electronic device 1300 shown in FIG. 13 is only an example, and should not limit the functions and scope of use of the embodiments of the present disclosure.
  • electronic device 1300 takes the form of a general-purpose computing device.
  • Components of the electronic device 1300 may include but not limited to: at least one processing unit 1310 , at least one storage unit 1320 , and a bus 1330 connecting different system components (including the storage unit 1320 and the processing unit 1310 ).
  • the storage unit stores program codes, and the program codes can be executed by the processing unit 1310, so that the processing unit 1310 executes various exemplary methods according to the present disclosure described in the "Exemplary Methods" section of this specification.
  • Implementation steps For example, the processing unit 1310 may perform the following steps in the above method embodiment: when a radio link failure occurs between the terminal and the first radio access network node, set all the carrier frequency ranges supported by the first radio access network node to Record the radio link failure information in the radio link failure report, and switch the terminal to the second radio access network node; the second radio access network node sends a terminal information request message to the terminal; the terminal sends the second radio access network node The network access node returns a terminal information response message, wherein the terminal information response message includes wireless link failure reports of all carrier frequency point number ranges supported by the first wireless access network node; the second wireless access network node responds according to the terminal information message, sending a radio link failure indication message to the first radio access network node, wherein the radio link
  • the storage unit 1320 may include a readable medium in the form of a volatile storage unit, such as a random access storage unit (RAM) 13201 and/or a cache storage unit 13202 , and may further include a read-only storage unit (ROM) 13203 .
  • RAM random access storage unit
  • ROM read-only storage unit
  • the storage unit 1320 may also include a program/utility 13204 having a set (at least one) of program modules 13205, such program modules 13205 including but not limited to: an operating system, one or more application programs, other program modules, and program data, Implementations of networked environments may be included in each or some combination of these examples.
  • Bus 1330 may represent one or more of several types of bus structures, including a memory cell bus or memory cell controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local area using any of a variety of bus structures. bus.
  • the electronic device 1300 can also communicate with one or more external devices 1340 (such as keyboards, pointing devices, Bluetooth devices, etc.), and can also communicate with one or more devices that enable the user to interact with the electronic device 1300, and/or communicate with Any device (eg, router, modem, etc.) that enables the electronic device 1300 to communicate with one or more other computing devices. Such communication may occur through input/output (I/O) interface 1350 .
  • the electronic device 1300 can also communicate with one or more networks (such as a local area network (LAN), a wide area network (WAN) and/or a public network such as the Internet) through the network adapter 1360 .
  • networks such as a local area network (LAN), a wide area network (WAN) and/or a public network such as the Internet
  • the network adapter 1360 communicates with other modules of the electronic device 1300 through the bus 1330 .
  • other hardware and/or software modules may be used in conjunction with electronic device 1300, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives And data backup storage system, etc.
  • the example implementations described here can be implemented by software, or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of the present disclosure can be embodied in the form of software products, and the software products can be stored in a non-volatile storage medium (which can be CD-ROM, U disk, mobile hard disk, etc.) or on the network , including several instructions to make a computing device (which may be a personal computer, a server, a terminal device, or a network device, etc.) execute the method according to the embodiments of the present disclosure.
  • a computing device which may be a personal computer, a server, a terminal device, or a network device, etc.
  • a computer-readable storage medium is also provided, and the computer-readable storage medium may be a readable signal medium or a readable storage medium.
  • a program product capable of realizing the above-mentioned methods of the present disclosure is stored thereon.
  • various aspects of the present disclosure may also be implemented in the form of a program product, which includes program code, and when the program product is run on a terminal device, the program code is used to make the The terminal device executes the steps according to various exemplary embodiments of the present disclosure described in the "Exemplary Method" section above in this specification.
  • Computer-readable storage media in this disclosure may include, but are not limited to: electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read only memory (ROM), Erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above.
  • RAM random access memory
  • ROM read only memory
  • EPROM or flash memory Erasable programmable read-only memory
  • CD-ROM portable compact disk read-only memory
  • magnetic storage device or any suitable combination of the above.
  • a computer-readable storage medium may include a data signal carrying readable program code in baseband or as part of a carrier wave traveling as a data signal. Such propagated data signals may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing.
  • a readable signal medium may also be any readable medium other than a readable storage medium that can transmit, propagate, or transport a program for use by or in conjunction with an instruction execution system, apparatus, or device.
  • program code contained on a computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, cable, optical cable, RF, etc., or any suitable combination of the above.
  • the program code for performing the operations of the present disclosure may be written in any combination of one or more programming languages, and the programming language includes an object-oriented programming language—such as Java, C++, etc., or Includes conventional procedural programming languages - such as the "C" language or similar programming languages.
  • the program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server to execute.
  • the remote computing device may be connected to the user computing device through any kind of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., using an Internet service provider). business to connect via the Internet).
  • LAN local area network
  • WAN wide area network
  • Internet service provider an Internet service provider
  • steps of the methods of the present disclosure are depicted in the drawings in a particular order, there is no requirement or implication that the steps must be performed in that particular order, or that all illustrated steps must be performed to achieve the desired result. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into one step for execution, and/or one step may be decomposed into multiple steps for execution, etc.
  • the example embodiments described here can be implemented by software, or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of the present disclosure can be embodied in the form of software products, and the software products can be stored in a non-volatile storage medium (which can be CD-ROM, U disk, mobile hard disk, etc.) or on the network , including several instructions to make a computing device (which may be a personal computer, a server, a mobile terminal, or a network device, etc.) execute the method according to the embodiments of the present disclosure.
  • a non-volatile storage medium which can be CD-ROM, U disk, mobile hard disk, etc.
  • a computing device which may be a personal computer, a server, a mobile terminal, or a network device, etc.

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Abstract

本公开提供了一种无线链路失败处理方法、终端、基站、系统、设备及介质，涉及通信技术领域。该方法包括：当终端与第一无线接入网节点发生无线链路失败时，将第一无线接入网节点支持的所有载波频点号范围内的无线链路失败信息记录到无线链路失败报告中，并切换至第二无线接入网节点；第二无线接入网节点向终端发送终端信息请求消息，并接收终端返回的包含所有载波频点号范围的无线链路失败报告的终端信息响应消息；第二无线接入网节点向第一无线接入网节点发送包含所有载波频点号范围的无线链路失败报告的无线链路失败指示消息；第一无线接入网节点对其设置的所有载波频点号范围的切换参数进行调整。

Description

无线链路失败处理方法、终端、基站、系统、设备及介质
相关申请的交叉引用
本申请是以CN申请号为202111284778.6，申请日为2021年11月1日的申请为基础，并主张其优先权，该CN申请的公开内容在此作为整体引入本申请中。
技术领域
本公开涉及通信技术领域，尤其涉及一种无线链路失败处理方法、终端、基站、系统、设备及介质。
背景技术
网络自优化(Self Orginazing Network，SON)能适应网络结构的扁平化和灵活性，减少运营商对网络进行操作维护的人工成本，日益受到大家的关注。而MRO(Mobility Robustness Optimization，移动鲁棒性优化)是网络自优化的一个重要组成部分。
终端在移动过程中，小区切换失败会严重影响到用户感受。一般不是因无线链路失败(Radio link failure，RLF)导致的小区切换失败都可迅速恢复，而因无线链路失败导致的小区切换失败，不仅会影响到用户感受，而且还会影响网络容量。而无线链路失败主要是由于小区切换参数设置不合理导致的，因而，需要在发生无线链路失败时，由发生无线链路失败的小区基站发送无线链路失败报告给成功切换后的小区基站，以便成功切换的小区基站通知发生无线链路失败的基站进行相关切换参数的优化。
由于不同的小区基站支持的载波频点号范围不同，可能导致有些载波频点号范围的无线链路失败报告无法被上报或解析，导致这些载波频点号范围的相关切换参数不能得到优化的技术问题。
需要说明的是，在上述背景技术部分公开的信息仅用于加强对本公开的背景的理解，因此可以包括不构成对本领域普通技术人员已知的现有技术的信息。
发明内容
本公开的其他特性和优点将通过下面的详细描述变得显然，或部分地通过本公开的实践而习得。
根据本公开的一个方面，提供了一种无线链路失败处理方法，该方法包括：当终端与第一无线接入网节点发生无线链路失败时，将第一无线接入网节点支持的所有载波频点号范围内的无线链路失败信息记录到无线链路失败报告中，并将终端切换至第二无线接入网节点；所述第二无线接入网节点向所述终端发送终端信息请求消息；所述终端向所述第二无线接入网节点返回终端信息响应消息，其中，所述终端信息响应消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告；所述第二无线接入网节点根据所述终端信息响应消息，向所述第一无线接入网节点发送无线链路失败指示消息，其中，所述无线链路失败指示消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告；所述第一无线接入网节点根据所述无线链路失败指示消息，对所述第一无线接入网节点设置的所有载波频点号范围的切换参数进行调整。
在本公开的一些实施例中，所述第一无线接入网节点为ng-eNB节点，所述第二无线接入网节点为gNB节点；所述方法还包括：将E-UTRA基站小区支持的载波频点号范围0～65535和扩展载波频点号范围65536～262143，记录到无线链路失败报告中。
在本公开的一些实施例中，所述第一无线接入网节点为gNB节点，所述第二无线接入网节点为ng-eNB节点；所述方法还包括：将NR基站小区支持的载波频点号范围0～262143，记录到无线链路失败报告中。
根据本公开的另一个方面，还提供了一种无线链路失败处理方法，应用于终端，该方法包括：接收第二无线接入网节点发送的终端信息请求消息；向所述第二无线接入网节点返回终端信息响应消息，其中，所述终端信息响应消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告。
根据本公开的另一个方面，还提供了一种无线链路失败处理方法，应用于第一无线接入网节点，该方法包括：接收第二无线接入网节点发送的无线链路失败指示消息，其中，所述无线链路失败指示消息中包含：终端与所述第一无线接入网节点发生无线链路失败时记录的无线链路失败报告，所述无线链路失败报告中记录有所述第一无线接入网节点支持的所有载波频点号范围内的无线链路失败信息；根据所述无线链路失败指示消息，对所述第一无线接入网节点设置的所有载波频点号范围的切换参数进行调整；其中，所述无线链路失败报告是是所述第二无线接入网节点向所述终端发送终端信息请求消息后，从接收的所述终端返回的终端信息响应消息中获取的。
根据本公开的另一个方面，还提供了一种无线链路失败处理方法，应用于第二无线接入网节点，该方法包括：向终端发送终端信息请求消息；接收所述终端返回的终端信息响应消息，其中，所述终端信息响应消息中包含所述终端与第一无线接入网节点发生无线链路失败时记录的无线链路失败报告，所述无线链路失败报告中记录有所述第一无线接入网节点支持的所有载波频点号范围内的无线链路失败信息。
根据本公开的另一个方面，还提供了一种终端，该终端包括：无线链路失败报告模块，用于所述第二无线接入网节点发送的终端信息请求消息，并向所述第二无线接入网节点返回终端信息响应消息，其中，所述终端信息响应消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告。
根据本公开的另一个方面，还提供了一种基站，该基站包括：无线链路失败指示消息接收模块，用于接收来自其他基站的无线链路失败指示消息，其中，所述无线链路失败指示消息中包含：终端与所述基站发生无线链路失败时记录的无线链路失败报告，所述无线链路失败报告中记录有所述基站支持的所有载波频点号范围内的无线链路失败信息；切换参数调整模块，用于根据所述无线链路失败指示消息，对所述基站设置的所有载波频点号范围的切换参数进行调整。
根据本公开的另一个方面，还提供了一种基站，该基站包括：终端信息请求模块，用于向终端发送终端信息请求消息；终端信息获取模块，用于接收所述终端返回的终端信息响应消息，其中，所述终端信息响应消息中包含所述终端与其他基站发生无线链路失败时记录的无线链路失败报告，所述无线链路失败报告中记录有发生无线链路失败的基站支持的所有载波频点号范围内的无线链路失败信息。
根据本公开的另一个方面，还提供了一种通信系统，该通信系统包括：终端、第一无线接入网节点和第二无线接入网节点；其中，所述终端，用于当所述终端与所述第一无线接入网节点发生无线链路失败时，将第一无线接入网节点支持的所有载波频点号范围内的无线链路失败信息记录到无线链路失败报告中，并将终端切换至第二无线接入网节点；所述第二无线接入网节点，与所述终端通信，用于向所述终端发送终端信息请求消息，并接收所述终端返回的终端信息响应消息，根据所述终端信息响应消息，向所述第一无线接入网节点发送无线链路失败指示消息，其中，所述终端信息响应消息和所述无线链路失败指示消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告；所述第一无线接入网节点，用于根据所述无线链路失败指示消息，对所述第一无线接入网节点设置的所有载波频点号范围的切换参数进 行调整。
根据本公开的另一个方面，还提供了一种电子设备，包括：处理器；以及存储器，用于存储所述处理器的可执行指令；其中，所述处理器配置为经由执行所述可执行指令来执行上述的无线链路失败处理方法。
根据本公开的另一个方面，还提供了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处理方法。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1示出本公开实施例中一种通信系统示意图；
图2示出本公开实施例中一种5G通信系统的架构示意图；
图3示出本公开实施例中一种终端信息交互过程示意图；
图4示出本公开实施例中一种无线链路失败指示过程示意图；
图5示出本公开实施例中一种无线链路失败处理方法流程图；
图6示出本公开实施例中一种通信系统交互示意图；
图7示出本公开实施例中一种应用于终端的无线链路失败处理方法流程图；
图8示出本公开实施例中一种应用于基站的无线链路失败处理方法流程图；
图9示出本公开实施例中又一种应用于基站的无线链路失败处理方法流程图；
图10示出本公开实施例中一种终端的内部组成模块示意图；
图11示出本公开实施例中一种基站的内部组成模块示意图；
图12示出本公开实施例中又一种基站的内部组成模块示意图；
图13示出本公开实施例中一种电子设备的结构框图。
具体实施方式
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形 式实施，且不应被理解为限于在此阐述的范例；相反，提供这些实施方式使得本公开将更加全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。所描述的特征、结构或特性可以以任何合适的方式结合在一个或更多实施方式中。
此外，附图仅为本公开的示意性图解，并非一定是按比例绘制。图中相同的附图标记表示相同或类似的部分，因而将省略对它们的重复描述。附图中所示的一些方框图是功能实体，不一定必须与物理或逻辑上独立的实体相对应。可以采用软件形式来实现这些功能实体，或在一个或多个硬件模块或集成电路中实现这些功能实体，或在不同网络和/或处理器装置和/或微控制器装置中实现这些功能实体。
本公开提供一种无线链路失败处理方法、终端、基站、系统、设备及介质，至少在一定程度上克服相关技术中因不同基站支持的载波频点号范围不同导致有些载波频点号范围的切换参数不能被优化的技术问题。
本公开的实施例所提供的无线链路失败处理方法、终端、基站、系统、设备及介质，将与终端发生无线链路失败的源基站支持的所有载波频点范围内的无线链路失败信息记录到无线链路失败报告中，使得终端能够将源基站所有载波频点范围的无线链路失败报告都发送给目标基站，也使得目标基站解析所有载波频点范围的无线链路失败报告，以及将所有载波频点范围的无线链路失败报告都发送给源基站，以便源基站对所有载波频点范围的切换参数进行优化调整，从而降低移动过程中发生无线链路失败的概率。
下面结合附图及实施例对本示例实施方式进行详细说明。
本公开实施例中提供了一种通信系统，如图1所示，该通信系统包括：终端100、第一无线接入网节点101和第二无线接入网节点102。
终端100，用于当终端100与第一无线接入网节点101发生无线链路失败时，将第一无线接入网节点101支持的所有载波频点号范围内的无线失败链路失败信息记录到无线链路失败报告中，并切换至第二无线接入网节点102。
第二无线接入网节点102，与终端100通信，用于向终端100发送终端信息请求消息，并接收终端100返回的终端信息响应消息，根据终端信息响应消息，向第一无线接入网节点101发送无线链路失败指示消息，其中，终端信息响应消息和无线链路失败指示消息中包含第一无线接入网节点101支持的所有载波频点号范围的无线链路失败报告，即无线链路失败报告包括第一无线接入网节点101支持的所有载波频点号范围内的无线失败链路失败信息。
第一无线接入网节点101，用于根据无线链路失败指示消息，对第一无线接入网节点101设置的所有载波频点号范围的切换参数进行调整。
需要说明的是，上述第一无线接入网节点101可以是与终端100发生无线链路失败的基站(也称源基站)；上述第二无线接入网节点102可以是与终端100成功建立无线链路的基站(也称目标基站)。当终端100与第一无线接入网节点101发生无线链路失败，终端100会切换到第二无线接入网节点102，并与第二无线接入网节点102建立无线链路。本公开实施例中的第一无线接入网节点101和第二无线接入网节点102可以是采用相同通信协议的基站，也可以是采用不同通信协议的基站。
图1所示的通信系统可以是但不限于5G通信系统。图2示出本公开实施例中一种5G通信系统的架构示意图，如图2所示，在5G系统架构中，5G接入网(NG-RAN)由gNB(NR系统基站)和ng-eNB(可接入5G核心网的LTE演进基站)两种节点组成。gNB节点是提供NR(New Radio，新空口)基站到终端(User Equipment，UE)的控制面与用户面协议的节点，经由NG接口连接到5G核心网；ng-eNB节点是提供LTE(Long Term Evolution，长期演进)基站到UE的控制面与用户面协议的节点，经由NG接口连接到5G核心网。gNB节点与gNB节点之间、ng-eNB节点与ng-eNB节点之间，以及gNB节点和ng-eNB节点之间通过Xn接口进行通信。
本领域技术人员可以知晓，图1中的终端、第一无线接入网节点和第二无线接入网节点的数量仅仅是示意性的，根据实际需要，可以具有任意数目的终端、第一无线接入网节点和第二无线接入网节点。本公开实施例对此不作限定。
需要说明的是，本公开实施例中的第一无线接入网节点(NG-RAN1)可以是ng-eNB节点，也可以是gNB节点；同理，本公开实施例中的第二无线接入网节点(NG-RAN2)可以是gNB节点，也可以是ng-eNB节点。在一些实施例中，所述第一无线接入网节点与所述第二无线接入网节点采用相同制式或不同制式。
例如，在本公开的一些实施例中，第一无线接入网节点为ng-eNB节点，第二无线接入网节点为gNB节点；在本公开的另一些实施例中，第一无线接入网节点为gNB节点，第二无线接入网节点为ng-eNB节点。
当终端在第一无线接入网节点发生无线链路失败时，切换至第二无线接入网节点，第二无线接入网节点需要将包含所有载波频点号范围的无线链路失败报告通过Xn接口发送给第一无线接入网节点，以便第一无线接入网节点对切换参数进行优化，降低发生无线链路失败的概率。
根据现有TS 38.331标准，当第一无线接入网节点是ng-eNB时，第二无线接入网节点需要将包括TS 36.331标准中规定的RLF相关频点参数的RLF报告发送给第一无线接入网节点，但如上所述，TS 36.331标准中规定的RLF相关频点参数包括RLF-Report-r9和RLF-Report-v9e0(扩展载波频点号范围)。因此，当第一无线接入网节点发生无线链路失败的是扩展载波频点号范围时，终端无法将扩展载波频点号范围的RLF报告上报给第二无线接入网节点，第二无线接入网节点无法将扩展载波频点号范围的RLF报告发送给第一无线接入网节点。另外，当第一无线接入网节点是gNB，第二无线接入网节点是ng-eNB节点时，由于ng-eNB节点无法支持gNB节点所支持的所有载波频点号范围，以及考虑到其他兼容性的问题，ng-eNB节点可能无法解析gNB节点相关内容，第二无线接入网节点无法将扩展载波频点号范围的RLF报告发送给第一无线接入网节点。因此，在5G通信系统中，为了实现移动鲁棒性增强，降低发生无线链路失败的概率，目前标准和实现上还存在如下问题：
1)无法实现扩展载波频点号范围小区的RLF上报：根据当前NR标准TS38.331，终端只能将RLF-Report-r9对应频点小区的RLF报告通过终端响应消息上报给目标基站(即上述与终端成功建立无线链路的第二无线接入网节点)，无法支持扩展载波频点号范围(RLF-Report-v9e0)对应小区的RLF上报，因而，无法对扩展载波频点号范围相关参数进行优化，无法降低终端发生RLF的概率。
2)无法解析终端上报的扩展载波频点号范围小区的RLF报告：根据当前NR标准TS 38.331，目标基站(即上述与终端成功建立无线链路的第二无线接入网节点)无法解析终端响应消息中与E-UTRAN基站扩展载波频点号范围小区相关的RLF报告，因此无法对扩展载波频点号范围相关参数进行优化，无法降低终端发生RLF的概率，抑制网络容量。
3)无法将扩展载波频点号范围小区的RLF报告发送给源基站(即上述与终端发生无线链路失败的第一无线接入网节点)：根据当前NR标准TS 38.423，终端在切换至目标基站后，目标基站无法将扩展载波频点号范围小区的RLF报告，通过RLF指示消息发送给源基站，因此，源基站无法对扩展载波频点号范围相关参数进行优化，无法降低终端发生RLF的概率，抑制终端性能和网络容量。
基于上述需求和原因分析，目前的3GPP NR协议无法满足需求，需要通过新的方式来进行增强以满足资源分配和优化的需求。本公开实施例中，通过扩展NR标准终端信息响应消息中与E-UTRAN基站相关的RLF频点，终端将所有EUTRA频点 小区的RLF相关信息上报给目标基站(即本公开实施例中的第二无线接入网节点)，以辅助目标基站对相关参数进行优化。通过该优化，目标基站可将扩展载波频点号范围的RLF报告指示给源基站(即本公开实施例中的第一无线接入网节点)，使得源基站对扩展载波频点号范围的RLF进行优化，降低终端发生RLF的风险。目标基站通过Xn接口发送的失败指示消息将扩展载波频点号范围小区的RLF报告发送给源基站，源基站在收到指示消息后对扩展载波频点号范围RLF相关参数进行优化，以降低其发生RLF的风险。本公开实施例提供的方案，对终端影响较小，有良好的后向兼容性和部署可行性。且在现有协议上进行增强，没有引入新的协议过程，对现有协议改动较小，实现难度较低。
为了分析连接失败，UE(即终端)向网络提供RLF报告。UE保存最新的RLF报告，包括LTE和NR RLF报告，直到网络获取RLF报告或者检测到连接失败后48小时。网络在获取到RLF报告后，会将RLF报告发送给UE的源小区，以帮助源小区对切换参数进行优化，以改善切换过程。
具体来说，如图3所示，当网络需要终端上报RLF报告时，网络向终端发送终端信息请求消息，终端在收到该终端信息请求消息后，向网络返回携带有RLF报告的终端信息响应消息。
根据TS 36.331标准可知，UE Information Response携带的RLF相关信息包含以下信息：
Figure PCTCN2022118391-appb-000001
Figure PCTCN2022118391-appb-000002
其中，ARFCN-ValueEUTRA用于指示适用于下行链路、上行链路或双向(TDD)E-UTRA载频的ARFCN(Absolute Radio Frequency Channel Number，绝对无线频道编号)。
为了支持满足国际移动电信(IMT)的需求，LTE在R9中扩展了ARFCN的最大值，即上述所示ARFCN-ValueEUTRA-v9e0。根据TS 36.331可知ARFCN-ValueUTRA和ARFCN-ValueEUTRA-v9e0的具体数值：
Figure PCTCN2022118391-appb-000003
基于上述描述可知，在5G系统中，为了支持NG-RAN节点中的MRO，RLF报告需要同时支持LTE RLF Report和NR RLF Report。根据TS 38.331，UE Information Response携带的RLF相关信息包含以下信息：
Figure PCTCN2022118391-appb-000004
Figure PCTCN2022118391-appb-000005
其中measResult-RLF-Report-EUTRA-r16包括TS 36.331中的E-UTRA RLF-Report-r9。
如上所述，当终端在一个基站发生RLF后，会切换至目标基站，随后，目标基站会从终端获取RLF报告，并将RLF报告发送给源基站，源基站在收到RLF报告后会对切换参数进行优化以降低终端发生RLF的概率。
图4为本公开实施例中一种无线链路失败指示过程示意图，如图4所示，第二无线接入网节点(NG-RAN2)接收到终端返回的终端响应消息后，解析出第一无线接入网节点(NG-RAN1)中发生RLF的相应频点小区，随后将第一无线接入网节点相应频点小区的RLF报告信息放入无线链路失败指示消息中，将该消息发送给第一无线接入网节点。第一无线接入网节点在收到无线链路失败指示消息后，解析出相应频点小区的RLF报告，根据记录的测量信息等，对相应频点小区的切换参数进行优化，以降低RLF概率，提高终端性能和网络容量。
基于同一发明构思，本公开实施例中还提供了一种无线链路失败处理方法，可以应用但不限于图1所示的通信系统，该方法可以由任意具备计算处理能力的电子设备执行。
图5示出本公开实施例中一种无线链路失败处理方法流程图，如图5所示，本公 开实施例中提供的无线链路失败处理方法包括步骤S502～S510。
在步骤S502中，当终端与第一无线接入网节点发生无线链路失败时，将第一无线接入网节点支持的所有载波频点号范围内的无线链路失败信息记录到无线链路失败报告中，并切换至第二无线接入网节点。
需要说明的是，当终端在第一无线接入网节点因定时器超时、随机接入失败或移动等相关问题而发生无线链路失败时，终端首先将第一无线接入网节点支持的所有载波频点号范围内的无线链路失败信息记录到无线链路失败报告中，然后切换至第二无线接入网节点。具体来说，无线链路失败报告中包含但不限于如下信息：
①RLF原因；
②发生RLF的小区标识；
③发生RLF时间；
④PLMN标识列表。
终端在第一无线接入网节点发生RLF后，为了保证终端业务性能，终端通过切换过程切换至第二无线接入网节点。
在具体实施时，上述S502可以通过如下步骤来实现：当终端与第一无线接入网节点发生无线链路失败时，终端切换至第二无线接入网节点，获取第一无线接入网节点和第二无线接无线接入网节点支持的载波频点号范围；如果第一无线接入网节点支持的所有载波频点号范围大于或等于第二无线接无线接入网节点支持的载波频点号范围，则将第一无线接入网节点的载波频点号范围记录到无线链路失败报告中；如果第一无线接入网节点支持的所有载波频点号范围小于第二无线接无线接入网节点支持的载波频点号范围，则可以将第二无线接入网节点的载波频点号范围作为第一无线接入网节点支持的所有载波频点号范围记录到无线链路失败报告中，这样可以扩大载波频点号范围。
在一些实施例中，所述第一无线接入网节点支持的所有载波频点号范围包括：E-UTRA基站小区支持的载波频点号范围0～65535和扩展载波频点号范围65536～262143，或者所述第一无线接入网节点支持的所有载波频点号范围包括：NR基站小区支持的载波频点号范围0～262143。例如，当第一无线接入网节点为ng-eNB节点，第二无线接入网节点为gNB节点时，上述S502可将E-UTRA基站小区支持的载波频点号范围0～65535和扩展载波频点号范围65536～262143，记录到无线链路失败报告中。当第一无线接入网节点为gNB节点，第二无线接入网节点为ng-eNB节点时，可将NR基站 小区支持的载波频点号范围0～262143，记录到无线链路失败报告中。
在步骤S504中，第二无线接入网节点向终端发送终端信息请求消息。
当终端连接到第二无线接入网节点后，第二无线接入网节点向终端发送信息请求消息，以获取终端相关信息(包括但不限于：RLF信息、终端的移动历史信息、终端记录的测量信息以及终端连接失败等相关信息)。具体来说，终端信息请求消息包含但不限于如下信息：
①RLF上报请求消息：布尔类型，为true时表示，需要终端上报无线链路失败相关信息；
②移动历史上报请求消息：布尔类型，为true时表示，需要终端上报移动历史相关信息；
③记录测量上报请求消息：布尔类型，为true时表示，需要终端上报记录的测量信息；
④连接失败上报请求消息：布尔类型，为true时表示，需要终端上报连接失败相关信息。
在步骤S506中，终端向第二无线接入网节点返回终端信息响应消息，其中，终端信息响应消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告。
当终端收到第二无线接入网节点发送的终端信息请求消息，且安全性被激活后，如果终端发现请求消息中的RLF上报请求消息的类型是true，则终端会通过终端请求响应消息将RLF报告上报给第二无线接入网节点。
考虑到RLF报告是与第一无线接入网节点相关的RLF信息，根据第一无线接入网节点的不同，终端请求响应消息中的RLF报告需要分以下两种情况讨论。
第一种情况：当第一无线接入网节点是NR基站，且终端信息请求消息中的RLF上报请求消息类型是true，终端存储的RLF相关变量中有可用的RLF信息或者切换失败信息，并且，RPLMN(Registerd Public Land Mobile Network，注册公用陆地移动网络)包含在RLF相关变量中的PLMN标识列表中，终端会将RLF相关变量中NR RLF相关信息通过终端信息响应消息发送给第二无线接入网节点。此时，终端响应消息中NR RLF报告包含但不限于如下信息：
一)失败的主小区标识；
1)小区全球唯一标识；
2)小区标识对应的绝对频点号；
①物理小区标识；
②载波频率，绝对频点号范围为0～262143。
第二种情况：当第一无线接入网节点是E-UTRAN基站，且终端信息请求消息中的RLF上报的类型是true，并且终端支持跨RAT(Radio Access Technology，无线接入技术)RLF上报，当终端存储的RLF相关变量中包含RLF信息或者切换失败信息，并且，RPLMN包含在RLF相关变量中的PLMN标识列表中时，终端会将E-UTRAN RLF相关信息通过终端信息响应消息发送给第二无线接入网节点。
考虑到第一无线接入网节点是E-UTRAN基站，终端上报的RLF相关信息中需要包含所有LTE频点小区发生的RLF情况。具体来说，终端响应消息中的E-UTRAN RLF报告包含但不限于以下信息：
一)失败主小区标识；
二)EUTRA RLF报告的测量结果；
1)发生RLF的E-UTRAN小区频点相关信息：如TS 36.331中E-UTRA RLF-Report-r9中频点相关参数；
载波频率的绝对频点号范围：0～65535；
2)发生RLF的E-UTRAN小区扩展载波频点号范围相关信息：如TS 36.331中E-UTRA RLF-Report-v9e0频点相关参数；
载波频率的绝对频点号范围：65536～262143。
在步骤S508中，第二无线接入网节点根据终端信息响应消息，向第一无线接入网节点发送无线链路失败指示消息，其中，无线链路失败指示消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告。
当第二无线接入网节点接收到终端信息响应消息后，通过解析其中的信息得知终端在源基站发生了RLF。此时第二无线接入网节点通过Xn接口向第一无线接入网节点发送无线链路失败指示信息，其中携带终端RLF报告，以告知第一无线接入网节点，终端在NG-RAN1控制的小区中发生了RLF。无线链路失败指示信息中包含终端RLF报告中包含的信息，需要根据第一无线接入网节点确定。
第一种情况：当第一无线接入网节点是NR基站时，无线链路失败指示信息中包含NR RLF相关信息，包括但不限于如下信息：
一)失败的主小区标识；
1)小区全球唯一标识；
2)小区标识对应的绝对频点号；
①物理小区标识；
②载波频率，绝对频点号范围为0～262143。
第二种情况：当第一无线接入网节点是E-UTRAN基站时，无线链路失败指示信息中包含LTE RLF相关信息，包括但不限于如下信息：
一)失败主小区标识；
二)EUTRA RLF报告的测量结果；
1)TS 36.331中E-UTRA RLF信息，E-UTRA RLF-Report-r9；
载波频率的绝对频点号范围：0～65535；
2)TS 36.331中E-UTRA RLF扩展信息，E-UTRA RLF-Report-v9e0；
载波频率的绝对频点号范围：65536～262143。
在步骤S510中，第一无线接入网节点根据无线链路失败指示消息，对第一无线接入网节点设置的所有载波频点号范围的切换参数进行调整。
步骤S502、S508、S510为可选步骤。
当第一无线接入网节点从无线链路失败指示信息中获取RLF相关信息(RLF报告)后，结合所记录的测量信息或者切换相关配置信息，分析终端发生RLF的原因，并对涉及的相关参数进行优化，以降低发生RLF的概率，提高终端性能。
在本公开的另一些实施例中，当第一无线接入网节点为ng-eNB节点，第二无线接入网节点为gNB节点时，终端将E-UTRA基站小区支持的载波频点号范围0～65535和扩展载波频点号范围65536～262143内的无线链路失败信息，记录到无线链路失败报告中；第二无线接入网节点向终端发送终端信息请求消息；终端向第二无线接入网节点返回终端信息响应消息，其中，终端信息响应消息中包含载波频点号范围0～65535和扩展载波频点号范围65536～262143的无线链路失败报告；第二无线接入网节点根据终端信息响应消息，向第一无线接入网节点发送无线链路失败指示消息，其中，无线链路失败指示消息中包含载波频点号范围0～65535和扩展载波频点号范围65536～262143的无线链路失败报告；第一无线接入网节点根据无线链路失败指示消息，对第一无线接入网节点设置的载波频点号范围0～65535和扩展载波频点号范围65536～262143的切换参数进行调整。
在本公开的另一些实施例中，当第一无线接入网节点为gNB节点，第二无线接入 网节点为ng-eNB节点时，终端将NR基站小区支持的载波频点号范围0～262143内的无线链路失败信息，记录到无线链路失败报告中；第二无线接入网节点向终端发送终端信息请求消息；终端向第二无线接入网节点返回终端信息响应消息，其中，终端信息响应消息中包含载波频点号范围0～262143的无线链路失败报告；第二无线接入网节点根据终端信息响应消息，向第一无线接入网节点发送无线链路失败指示消息，其中，无线链路失败指示消息中包含载波频点号范围0～262143的无线链路失败报告；第一无线接入网节点根据无线链路失败指示消息，对第一无线接入网节点设置的载波频点号范围0～262143的切换参数进行调整。
图6示出本公开实施例中一种通信系统交互示意图，如图6所示，终端在NG-RAN1节点发生RLF后对RLF进行保存，随后终端切换至NG-RAN2节点。当NG-RAN2节点想获取终端信息时，NG-RAN2节点向终端发送终端信息请求消息；终端在收到该消息后，将NG-RAN1节点的RLF报告等信息通过终端信息响应消息上报给NG-RAN2节点。NG-RAN2节点获取终端信息响应消息后，将NG-RAN1的RLF报告信息放入RLF指示消息中，并通过Xn接口将RLF指示消息发送给NG-RAN1节点。NG-RAN1节点在收到RLF指示消息后，解析出其中的RLF报告，根据记录的测量信息等，对相关切换参数进行优化，以降低RLF概率，提高终端性能。
需要注意的是，当NG-RAN1节点为E-UTRAN基站，扩展终端发送给目标基站的终端信息响应消息中包括E-UTRAN RLF报告中相关内容。具体来说，扩展EUTRA RLF上报信息中EUTRA RLF报告的测量结果，即除了现有TS 38.331中指出的只上报E-UTRA RLF-Report-r9中频点相关参数，还增加了扩展载波频点号范围相关信息，包括TS 36.331中E-UTRA RLF-Report-v9e0频点相关参数。
本公开实施例中，通过扩展终端响应消息中的E-UTRAN RLF相关频点，NG-RAN2在收到终端信息响应消息后，根据扩展的NR标准，对所有NG-RAN1相关频点小区的RLF报告都能进行解析，以实施后续优化。
当NG-RAN2节点收到终端信息响应消息后，通过解析该消息得知源NG-RAN1节点发生了RLF，此时NG-RAN2通过无线链路失败指示消息将NG-RAN1的RLF报告发送给NG-RAN1节点。无线链路失败指示消息通过Xn接口发送，对无线链路失败指示消息中终端RLF报告中的E-UTRAN RLF报告的频点范围进行扩展。
现有TS 38.423标准中无线链路失败指示消息中的终端RLF报告中，只有TS 36.331中E-UTRA RLF-Report-r9相关载波频率，无法支持扩展载波频点号范围E- UTRA RLF-Report-v9e0相关小区的RLF上报。此时对无线链路失败指示消息中终端RLF报告中的E-UTRAN RLF报告的频点范围进行扩展，支持E-UTRA RLF-Report-v9e0相关扩展载波频点号范围的RLF上报。
NG-RAN1在收到NG-RAN2发送的无线链路失败指示消息后，解析其中涉及的RLF报告，并结合所记录的测量信息或者切换相关配置信息，分析终端发生RLF的原因，并对其中涉及的相关参数进行优化，以降低发生RLF的概率，提高终端性能。
基于同一发明构思，本公开实施例中还提供了一种无线链路失败处理方法，可以应用但不限于图1所示的终端，如图7所示，该方法包括如下步骤S702～S706。
在步骤S702中，当终端与第一无线接入网节点发生无线链路失败时，切换至第二无线接入网节点，并将第一无线接入网节点支持的所有载波频点号范围内的无线链路失败信息记录到无线链路失败报告中。步骤S702为可选步骤。
在步骤S704中，接收第二无线接入网节点发送的终端信息请求消息。
在步骤S706中，向第二无线接入网节点返回终端信息响应消息，其中，终端信息响应消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告。
第二无线接入网节点还可以用于根据终端信息响应消息，向第一无线接入网节点发送无线链路失败指示消息，使得第一无线接入网节点根据无线链路失败指示消息，对第一无线接入网节点设置的所有载波频点号范围的切换参数进行调整，无线链路失败指示消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告。
基于同一发明构思，本公开实施例中还提供了一种无线链路失败处理方法，可以应用但不限于图1所示的第一无线接入网节点(即发生无线链路失败的基站，源基站)，如图8所示，该方法包括如下步骤S802～S804。
在步骤S802中，接收第二无线接入网节点发送的无线链路失败指示消息，其中，无线链路失败指示消息中包含：终端与第一无线接入网节点发生无线链路失败时记录的无线链路失败报告，无线链路失败报告中记录有第一无线接入网节点支持的所有载波频点号范围内的无线链路失败信息。
在步骤S804中，根据无线链路失败指示消息，对第一无线接入网节点设置的所有载波频点号范围的切换参数进行调整。
第二无线接入网节点还用于向终端发送终端信息请求消息，并接收终端返回的终 端信息响应消息，其中，终端信息响应消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告。
基于同一发明构思，本公开实施例中还提供了一种无线链路失败处理方法，可以应用但不限于图1所示的第二无线接入网节点(即成功建立无线链路的基站，目标基站)，如图9所示，该方法包括如下步骤S902～S906。
在步骤S902中，向终端发送终端信息请求消息。
在步骤S904中，接收终端返回的终端信息响应消息，其中，终端信息响应消息中包含终端与第一无线接入网节点发生无线链路失败时记录的无线链路失败报告，无线链路失败报告中记录有第一无线接入网节点支持的所有载波频点号范围内的无线链路失败信息。
在步骤S906中，根据终端信息响应消息，向第一无线接入网节点发送无线链路失败指示消息，使得第一无线接入网节点根据无线链路失败指示消息，对第一无线接入网节点设置的所有载波频点号范围的切换参数进行调整，无线链路失败指示消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告。步骤S906、为可选步骤。
基于同一发明构思，本公开实施例中还提供了一种终端，在一些实施例中，该终端包括无线链路失败报告模块102，用于接收第二无线接入网节点发送的终端信息请求消息，并向所述第二无线接入网节点返回终端信息响应消息，其中，所述终端信息响应消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告。
在一些实施例中，该终端包括：无线链路切换模块101和无线链路失败报告模块102。
其中，无线链路切换模块101，用于当终端与第一无线接入网节点发生无线链路失败时，将第一无线接入网节点支持的所有载波频点号范围内的无线链路失败信息记录到无线链路失败报告中，并将终端切换至第二无线接入网节点；无线链路失败报告模块102，用于接收第二无线接入网节点发送的终端信息请求消息，并向第二无线接入网节点返回终端信息响应消息，其中，终端信息响应消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告；
需要说明的是，上述第二无线接入网节点还用于根据终端信息响应消息，向第一无线接入网节点发送无线链路失败指示消息，使得第一无线接入网节点根据无线链路 失败指示消息，对第一无线接入网节点设置的所有载波频点号范围的切换参数进行调整，无线链路失败指示消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告。
基于同一发明构思，本公开实施例中还提供了一种基站，该基站包括：无线链路失败指示消息接收模块111和切换参数调整模块112。
其中，无线链路失败指示消息接收模块111，用于接收来自其他基站的无线链路失败指示消息，其中，无线链路失败指示消息中包含：终端与基站发生无线链路失败时记录的无线链路失败报告，无线链路失败报告中记录有基站支持的所有载波频点号范围内的无线链路失败信息；切换参数调整模块112，用于根据无线链路失败指示消息，对基站设置的所有载波频点号范围的切换参数进行调整。
基于同一发明构思，本公开实施例中还提供了一种基站，该基站包括：终端信息请求模块121，用于向终端发送终端信息请求消息；终端信息获取模块122，用于接收所述终端返回的终端信息响应消息，其中，所述终端信息响应消息中包含所述终端与其他基站发生无线链路失败时记录的无线链路失败报告，所述无线链路失败报告中记录有发生无线链路失败的支持的所有载波频点号范围内的无线链路失败信息
在一些实施例中，该基站包括：终端信息请求模块121、终端信息获取模块122和无线链路失败指示模块123。
其中，终端信息请求模块121，用于向终端发送终端信息请求消息；终端信息获取模块122，用于接收终端返回的终端信息响应消息，其中，终端信息响应消息中包含终端与其他基站发生无线链路失败时记录的无线链路失败报告，无线链路失败报告中记录有发生无线链路失败的基站支持的所有载波频点号范围内的无线链路失败信息；无线链路失败指示模块123，用于根据终端信息响应消息，向发生无线链路失败的基站发送无线链路失败指示消息，使得发生无线链路失败的基站根据无线链路失败指示消息，对设置的所有载波频点号范围的切换参数进行调整，无线链路失败指示消息中包含基站支持的所有载波频点号范围的无线链路失败报告。
所属技术领域的技术人员能够理解，本公开的各个方面可以实现为系统、方法或程序产品。因此，本公开的各个方面可以具体实现为以下形式，即：完全的硬件实施方式、完全的软件实施方式(包括固件、微代码等)，或硬件和软件方面结合的实施方式，这里可以统称为“电路”、“模块”或“系统”。
下面参照图13来描述根据本公开的这种实施方式的电子设备1300。图13显示的 电子设备1300仅仅是一个示例，不应对本公开实施例的功能和使用范围带来任何限制。
如图13所示，电子设备1300以通用计算设备的形式表现。电子设备1300的组件可以包括但不限于：上述至少一个处理单元1310、上述至少一个存储单元1320、连接不同系统组件(包括存储单元1320和处理单元1310)的总线1330。
其中，所述存储单元存储有程序代码，所述程序代码可以被所述处理单元1310执行，使得所述处理单元1310执行本说明书上述“示例性方法”部分中描述的根据本公开各种示例性实施方式的步骤。例如，所述处理单元1310可以执行上述方法实施例的如下步骤：当终端与第一无线接入网节点发生无线链路失败时，将第一无线接入网节点支持的所有载波频点号范围内的无线链路失败信息记录到无线链路失败报告中，并将终端切换至第二无线接入网节点；第二无线接入网节点向终端发送终端信息请求消息；终端向第二无线接入网节点返回终端信息响应消息，其中，终端信息响应消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告；第二无线接入网节点根据终端信息响应消息，向第一无线接入网节点发送无线链路失败指示消息，其中，无线链路失败指示消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告；第一无线接入网节点根据无线链路失败指示消息，对第一无线接入网节点设置的所有载波频点号范围的切换参数进行调整。
存储单元1320可以包括易失性存储单元形式的可读介质，例如随机存取存储单元(RAM)13201和/或高速缓存存储单元13202，还可以进一步包括只读存储单元(ROM)13203。
存储单元1320还可以包括具有一组(至少一个)程序模块13205的程序/实用工具13204，这样的程序模块13205包括但不限于：操作系统、一个或者多个应用程序、其它程序模块以及程序数据，这些示例中的每一个或某种组合中可能包括网络环境的实现。
总线1330可以为表示几类总线结构中的一种或多种，包括存储单元总线或者存储单元控制器、外围总线、图形加速端口、处理单元或者使用多种总线结构中的任意总线结构的局域总线。
电子设备1300也可以与一个或多个外部设备1340(例如键盘、指向设备、蓝牙设备等)通信，还可与一个或者多个使得用户能与该电子设备1300交互的设备通信，和/或与使得该电子设备1300能与一个或多个其它计算设备进行通信的任何设备(例 如路由器、调制解调器等等)通信。这种通信可以通过输入/输出(I/O)接口1350进行。并且，电子设备1300还可以通过网络适配器1360与一个或者多个网络(例如局域网(LAN)，广域网(WAN)和/或公共网络，例如因特网)通信。如图所示，网络适配器1360通过总线1330与电子设备1300的其它模块通信。应当明白，尽管图中未示出，可以结合电子设备1300使用其它硬件和/或软件模块，包括但不限于：微代码、设备驱动器、冗余处理单元、外部磁盘驱动阵列、RAID系统、磁带驱动器以及数据备份存储系统等。
通过以上的实施方式的描述，本领域的技术人员易于理解，这里描述的示例实施方式可以通过软件实现，也可以通过软件结合必要的硬件的方式来实现。因此，根据本公开实施方式的技术方案可以以软件产品的形式体现出来，该软件产品可以存储在一个非易失性存储介质(可以是CD-ROM，U盘，移动硬盘等)中或网络上，包括若干指令以使得一台计算设备(可以是个人计算机、服务器、终端装置、或者网络设备等)执行根据本公开实施方式的方法。
在本公开的示例性实施例中，还提供了一种计算机可读存储介质，该计算机可读存储介质可以是可读信号介质或者可读存储介质。其上存储有能够实现本公开上述方法的程序产品。在一些可能的实施方式中，本公开的各个方面还可以实现为一种程序产品的形式，其包括程序代码，当所述程序产品在终端设备上运行时，所述程序代码用于使所述终端设备执行本说明书上述“示例性方法”部分中描述的根据本公开各种示例性实施方式的步骤。
本公开中的计算机可读存储介质的更具体的例子可以包括但不限于：具有一个或多个导线的电连接、便携式计算机磁盘、硬盘、随机访问存储器(RAM)、只读存储器(ROM)、可擦式可编程只读存储器(EPROM或闪存)、光纤、便携式紧凑磁盘只读存储器(CD-ROM)、光存储器件、磁存储器件、或者上述的任意合适的组合。
在本公开中，计算机可读存储介质可以包括在基带中或者作为载波一部分传播的数据信号，其中承载了可读程序代码。这种传播的数据信号可以采用多种形式，包括但不限于电磁信号、光信号或上述的任意合适的组合。可读信号介质还可以是可读存储介质以外的任何可读介质，该可读介质可以发送、传播或者传输用于由指令执行系统、装置或者器件使用或者与其结合使用的程序。
可选地，计算机可读存储介质上包含的程序代码可以用任何适当的介质传输，包括但不限于无线、有线、光缆、RF等等，或者上述的任意合适的组合。
在具体实施时，可以以一种或多种程序设计语言的任意组合来编写用于执行本公开操作的程序代码，所述程序设计语言包括面向对象的程序设计语言—诸如Java、C++等，还包括常规的过程式程序设计语言—诸如“C”语言或类似的程序设计语言。程序代码可以完全地在用户计算设备上执行、部分地在用户设备上执行、作为一个独立的软件包执行、部分在用户计算设备上部分在远程计算设备上执行、或者完全在远程计算设备或服务器上执行。在涉及远程计算设备的情形中，远程计算设备可以通过任意种类的网络，包括局域网(LAN)或广域网(WAN)，连接到用户计算设备，或者，可以连接到外部计算设备(例如利用因特网服务提供商来通过因特网连接)。
应当注意，尽管在上文详细描述中提及了用于动作执行的设备的若干模块或者单元，但是这种划分并非强制性的。实际上，根据本公开的实施方式，上文描述的两个或更多模块或者单元的特征和功能可以在一个模块或者单元中具体化。反之，上文描述的一个模块或者单元的特征和功能可以进一步划分为由多个模块或者单元来具体化。
此外，尽管在附图中以特定顺序描述了本公开中方法的各个步骤，但是，这并非要求或者暗示必须按照该特定顺序来执行这些步骤，或是必须执行全部所示的步骤才能实现期望的结果。附加的或备选的，可以省略某些步骤，将多个步骤合并为一个步骤执行，以及/或者将一个步骤分解为多个步骤执行等。
通过以上实施方式的描述，本领域的技术人员易于理解，这里描述的示例实施方式可以通过软件实现，也可以通过软件结合必要的硬件的方式来实现。因此，根据本公开实施方式的技术方案可以以软件产品的形式体现出来，该软件产品可以存储在一个非易失性存储介质(可以是CD-ROM，U盘，移动硬盘等)中或网络上，包括若干指令以使得一台计算设备(可以是个人计算机、服务器、移动终端、或者网络设备等)执行根据本公开实施方式的方法。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本公开旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由所附的权利要求指出。

Claims (25)

  1. 一种无线链路失败处理方法，包括：
    当终端与第一无线接入网节点发生无线链路失败时，将所述第一无线接入网节点支持的所有载波频点号范围内的无线链路失败信息记录到无线链路失败报告中，并将所述终端切换至第二无线接入网节点；
    所述第二无线接入网节点向所述终端发送终端信息请求消息；
    所述终端向所述第二无线接入网节点返回终端信息响应消息，其中，所述终端信息响应消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告；
    所述第二无线接入网节点根据所述终端信息响应消息，向所述第一无线接入网节点发送无线链路失败指示消息，其中，所述无线链路失败指示消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告；
    所述第一无线接入网节点根据所述无线链路失败指示消息，对所述第一无线接入网节点设置的所有载波频点号范围的切换参数进行调整。
  2. 根据权利要求1所述的无线链路失败处理方法，其中，所述第一无线接入网节点为ng-eNB节点，所述第二无线接入网节点为gNB节点，所述方法还包括：
    将E-UTRA基站小区支持的载波频点号范围0～65535和扩展载波频点号范围65536～262143内的无线链路失败信息，记录到所述无线链路失败报告中。
  3. 根据权利要求2所述的无线链路失败处理方法，还包括：
    所述第二无线接入网节点向所述终端发送终端信息请求消息；
    所述终端向所述第二无线接入网节点返回终端信息响应消息，其中，所述终端信息响应消息中包含载波频点号范围0～65535和扩展载波频点号范围65536～262143的无线链路失败报告；
    所述第二无线接入网节点根据所述终端信息响应消息，向所述第一无线接入网节点发送无线链路失败指示消息，其中，所述无线链路失败指示消息中包含载波频点号范围0～65535和扩展载波频点号范围65536～262143的无线链路失败报告；
    所述第一无线接入网节点根据所述无线链路失败指示消息，对所述第一无线接入 网节点设置的载波频点号范围0～65535和扩展载波频点号范围65536～262143的切换参数进行调整。
  4. 根据权利要求1所述的无线链路失败处理方法，其中，所述第一无线接入网节点为gNB节点，所述第二无线接入网节点为ng-eNB节点，所述方法还包括：
    将NR基站小区支持的载波频点号范围0～262143内的无线链路失败信息，记录到无线链路失败报告中。
  5. 根据权利要求4所述的无线链路失败处理方法，还包括：
    所述第二无线接入网节点向所述终端发送终端信息请求消息；
    所述终端向所述第二无线接入网节点返回终端信息响应消息，其中，所述终端信息响应消息中包含载波频点号范围0～262143的无线链路失败报告；
    所述第二无线接入网节点根据所述终端信息响应消息，向所述第一无线接入网节点发送无线链路失败指示消息，其中，所述无线链路失败指示消息中包含载波频点号范围0～262143的无线链路失败报告；
    所述第一无线接入网节点根据所述无线链路失败指示消息，对所述第一无线接入网节点设置的载波频点号范围0～262143的切换参数进行调整。
  6. 根据权利要求1所述的无线链路失败处理方法，其中，
    所述第一无线接入网节点支持的所有载波频点号范围包括：E-UTRA基站小区支持的载波频点号范围0～65535和扩展载波频点号范围65536～262143，或者
    所述第一无线接入网节点支持的所有载波频点号范围包括：NR基站小区支持的载波频点号范围0～262143。
  7. 根据权利要求1所述的无线链路失败处理方法，其中，所述第一无线接入网节点与所述第二无线接入网节点采用相同制式或不同制式。
  8. 一种无线链路失败处理方法，应用于终端，包括：
    接收第二无线接入网节点发送的终端信息请求消息；
    向所述第二无线接入网节点返回终端信息响应消息，其中，所述终端信息响应消 息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告。
  9. 根据权利要求8所述的无线链路失败处理方法，还包括：
    在所述终端与所述第一无线接入网节点发生无线链路失败的情况下，将所述第一无线接入网节点支持的所有载波频点号范围的无线链路失败信息记录到所述无线链路失败报告中，并切换至所述第二无线接入网节点。
  10. 根据权利要求8或9所述的无线链路失败处理方法，其中，所述第二无线接入网节点还用于根据所述终端信息响应消息，向所述第一无线接入网节点发送无线链路失败指示消息，使得所述第一无线接入网节点根据所述无线链路失败指示消息，对所述第一无线接入网节点设置的所有载波频点号范围的切换参数进行调整，所述无线链路失败指示消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告。
  11. 根据权利要求8-10任一项所述的无线链路失败处理方法，其中，
    所述第一无线接入网节点支持的所有载波频点号范围包括：E-UTRA基站小区支持的载波频点号范围0～65535和扩展载波频点号范围65536～262143，或者
    所述第一无线接入网节点支持的所有载波频点号范围包括：NR基站小区支持的载波频点号范围0～262143。
  12. 根据权利要求8-10任一项所述的无线链路失败处理方法，其中，所述第一无线接入网节点与所述第二无线接入网节点采用相同制式或不同制式。
  13. 一种无线链路失败处理方法，应用于第一无线接入网节点，包括：
    接收第二无线接入网节点发送的无线链路失败指示消息，其中，所述无线链路失败指示消息中包含：终端与所述第一无线接入网节点发生无线链路失败时记录的无线链路失败报告，所述无线链路失败报告中记录有所述第一无线接入网节点支持的所有载波频点号范围内的无线链路失败信息；
    根据所述无线链路失败指示消息，对所述第一无线接入网节点设置的所有载波频点号范围的切换参数进行调整；
    其中，所述无线链路失败报告是所述第二无线接入网节点向所述终端发送终端信息请求消息后，从接收的所述终端返回的终端信息响应消息中获取的。
  14. 根据权利要求13所述的无线链路失败处理方法，其中，
    所述第一无线接入网节点支持的所有载波频点号范围包括：E-UTRA基站小区支持的载波频点号范围0～65535和扩展载波频点号范围65536～262143，或者
    所述第一无线接入网节点支持的所有载波频点号范围包括：NR基站小区支持的载波频点号范围0～262143。
  15. 根据权利要求13所述的无线链路失败处理方法，其中，所述第一无线接入网节点与所述第二无线接入网节点采用相同制式或不同制式。
  16. 一种无线链路失败处理方法，应用于第二无线接入网节点，包括：
    向终端发送终端信息请求消息；
    接收所述终端返回的终端信息响应消息，其中，所述终端信息响应消息中包含所述终端与第一无线接入网节点发生无线链路失败时记录的无线链路失败报告，所述无线链路失败报告中记录有所述第一无线接入网节点支持的所有载波频点号范围内的无线链路失败信息。
  17. 根据权利要求16所述的无线链路失败处理方法，还包括：
    根据所述终端信息响应消息，向所述第一无线接入网节点发送无线链路失败指示消息，使得所述第一无线接入网节点根据所述无线链路失败指示消息，对所述第一无线接入网节点设置的所有载波频点号范围的切换参数进行调整，其中，所述无线链路失败指示消息中包括所述无线链路失败报告。
  18. 根据权利要求16或17所述的无线链路失败处理方法，其中，
    所述第一无线接入网节点支持的所有载波频点号范围包括：E-UTRA基站小区支持的载波频点号范围0～65535和扩展载波频点号范围65536～262143，或者
    所述第一无线接入网节点支持的所有载波频点号范围包括：NR基站小区支持的载波频点号范围0～262143。
  19. 根据权利要求16或17所述的无线链路失败处理方法，其中，所述第一无线接入网节点与所述第二无线接入网节点采用相同制式或不同制式。
  20. 一种终端，包括：
    无线链路失败报告模块，用于接收第二无线接入网节点发送的终端信息请求消息，并向所述第二无线接入网节点返回终端信息响应消息，其中，所述终端信息响应消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告。
  21. 一种基站，包括：
    无线链路失败指示消息接收模块，用于接收来自其他基站的无线链路失败指示消息，其中，所述无线链路失败指示消息中包含：终端与所述基站发生无线链路失败时记录的无线链路失败报告，所述无线链路失败报告中记录有所述基站支持的所有载波频点号范围内的无线链路失败信息；
    切换参数调整模块，用于根据所述无线链路失败指示消息，对所述基站设置的所有载波频点号范围的切换参数进行调整。
  22. 一种基站，包括：
    终端信息请求模块，用于向终端发送终端信息请求消息；
    终端信息获取模块，用于接收所述终端返回的终端信息响应消息，其中，所述终端信息响应消息中包含所述终端与其他基站发生无线链路失败时记录的无线链路失败报告，所述无线链路失败报告中记录有发生无线链路失败的基站支持的所有载波频点号范围内的无线链路失败信息。
  23. 一种通信系统，其特征在于，包括：终端、第一无线接入网节点和第二无线接入网节点，其中：
    所述终端，用于当终端与第一无线接入网节点发生无线链路失败时，将所述第一无线接入网节点支持的所有载波频点号范围内的无线链路失败信息记录到无线链路失败报告中，并将所述终端切换至第二无线接入网节点；
    所述第二无线接入网节点，与所述终端通信，用于向所述终端发送终端信息请求 消息，并接收所述终端返回的终端信息响应消息，根据所述终端信息响应消息，向所述第一无线接入网节点发送无线链路失败指示消息，其中，所述终端信息响应消息和所述无线链路失败指示消息中包含第一无线接入网节点支持的所有载波频点号范围的无线链路失败报告；
    所述第一无线接入网节点，用于根据所述无线链路失败指示消息，对所述第一无线接入网节点设置的所有载波频点号范围的切换参数进行调整。
  24. 一种电子设备，包括：
    处理器；以及
    存储器，用于存储所述处理器的可执行指令；
    其中，所述处理器配置为经由执行所述可执行指令来执行权利要求1-19中任意一项所述的无线链路失败处理方法。
  25. 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权利要求1-19中任意一项所述的无线链路失败处理方法。
PCT/CN2022/118391 2021-11-01 2022-09-13 无线链路失败处理方法、终端、基站、系统、设备及介质 Ceased WO2023071561A1 (zh)

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