WO2023078340A1 - 一种无线通信链路失败处理方法及装置 - Google Patents

一种无线通信链路失败处理方法及装置 Download PDF

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Publication number
WO2023078340A1
WO2023078340A1 PCT/CN2022/129493 CN2022129493W WO2023078340A1 WO 2023078340 A1 WO2023078340 A1 WO 2023078340A1 CN 2022129493 W CN2022129493 W CN 2022129493W WO 2023078340 A1 WO2023078340 A1 WO 2023078340A1
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Prior art keywords
cell group
failure
terminal
failure information
cell
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PCT/CN2022/129493
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English (en)
French (fr)
Inventor
王睿炜
彦楠
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大唐移动通信设备有限公司
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Publication of WO2023078340A1 publication Critical patent/WO2023078340A1/zh

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—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
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point

Definitions

  • the present disclosure relates to the technical field of wireless communication, and in particular, to a method and device for processing failure of a wireless communication link.
  • the terminal can communicate with multiple network devices at the same time and can send and receive data, which can be called Multi-RAT Dual Connectivity (MR-DC).
  • MR-DC Multi-RAT Dual Connectivity
  • the network device that can exchange radio resource control messages with the terminal and interact with the core network control plane entity is called a network master node (master node, MN), and other network devices can be called network secondary nodes ( secondary node, SN).
  • the cell group of the master node of the network can also be called the master cell group (master cell group, MCG), which consists of a primary cell (Primary Cell, PCell) and one or It is composed of multiple secondary cells (Secondary Cell, SCell).
  • the cell group of the network secondary node can also be called secondary cell group (secondary cell group, SCG), which is also composed of a primary cell and one or more secondary cells.
  • the present disclosure provides a wireless communication link failure processing method and device, which are used to assist a terminal to restore a connection with a cell group, and/or analyze a cause of a connection failure between a terminal and a cell group.
  • a method for processing a failure of a wireless communication link including: a terminal acquires failure information, where the failure information is information related to a connection failure between the terminal and a cell group;
  • the terminal sends a cell group failure information message to the network device, the cell group failure information message includes the failure information, and the failure information is used to assist the terminal to restore the connection with the cell group, and/or determine the The cause of the connection failure between the terminal and the cell group; wherein, if the cell group is the primary cell group MCG, the cell group failure information message is an MCG failure information message, and if the cell group is the secondary cell group SCG, then The cell group failure information message is an SCG failure information message.
  • the terminal obtaining failure information includes: the terminal continuously performs uplink LBT on the bandwidth part BWP of the primary cell in the primary cell group, and if a failure occurs, obtaining failure information, the failure information includes shared spectrum resources RSSI measurement results corresponding to the measurement objects in the secondary cell group; or the terminal continuously performs uplink LBT listening on the BWP of the primary cell in the secondary cell group, and if failure occurs, obtains failure information, and the failure information includes measurement in shared spectrum resources The RSSI measurement result corresponding to the object.
  • the obtaining failure information of the terminal includes: if the terminal is disconnected from the primary cell in the primary cell group or disconnected from the primary cell in the secondary cell group, the terminal obtains the failure information, the The failure information includes the report generated by the terminal or part of the information in the report.
  • the report generated by the terminal includes at least one of the following: a radio link failure report, a random access report, and a connection establishment failure report.
  • the radio link failure report includes at least one of the following: an identifier of a cell selected by the network side to restore the connection, and an identifier of whether the connection is restored successfully.
  • the cell identity is a global cell identity CGI, or the cell identity includes a physical cell identity PCI and a frequency point.
  • a method for processing a wireless communication link failure including:
  • the first network device receives the cell group failure information message sent by the terminal, the cell group failure information message includes failure information, and the failure information is information related to the connection failure between the terminal and the cell group; the first network device according to The failure information restores the connection between the terminal and the cell group, and/or determines the cause of the connection failure between the terminal and the cell group; wherein, if the cell group is the primary cell group MCG, the The cell group failure information message is an MCG failure information message, and if the cell group is a secondary cell group SCG, the cell group failure information message is an SCG failure information message.
  • the failure information includes the received signal strength indicator RSSI measurement result corresponding to the measurement object in the shared spectrum resource, and the RSSI measurement result is that the terminal continuously performs LBT on the bandwidth part BWP of the primary cell in the primary cell group
  • the RSSI measurement result is obtained when the listening fails, or the RSSI measurement result is obtained when the terminal fails to continuously perform uplink LBT listening on the BWP of the primary cell in the secondary cell group.
  • the failure information includes a report generated by the terminal or part of the information in the report, and the report is that the terminal is disconnected from the primary cell in the primary cell group or disconnected from the primary cell in the secondary cell group. Obtained when the connection of the cell is disconnected.
  • the report includes at least one of the following: a radio link failure report, a random access report, and a connection establishment failure report.
  • the radio link failure report includes at least one of the following: an identifier of a cell selected by the network side to restore the connection, and an identifier of whether the connection is restored successfully.
  • the method further includes: the first network device sending at least one of the following information to the second network device: the handover failure type of the terminal; the cell identity of the handover source cell of the terminal and The cell ID of the target cell; the ID of the cell selected by the network side to resume the connection after the terminal connection fails; the success or failure ID of the reconnection recovery after the terminal connection failure; the wireless link failure report of the terminal.
  • the cell identity is a global cell identity CGI, or the cell identity includes a physical cell identity PCI and a frequency point.
  • a wireless communication link failure processing device including: an acquisition module configured to acquire failure information, the failure information being information related to a connection failure between the terminal and a cell group; a sending module configured to Sending the cell group failure information message to the network device, the cell group failure information message including the failure information, the failure information is used to assist the terminal to restore the connection with the cell group, and/or determine the terminal The cause of the connection failure with the cell group; wherein, if the cell group is the primary cell group MCG, the cell group failure information message is an MCG failure information message; if the cell group is the secondary cell group SCG, the cell group failure information message is The cell group failure information message is an SCG failure information message.
  • a wireless communication link failure processing device including: a receiving module configured to receive a cell group failure information message sent by a terminal, where the cell group failure information message includes failure information, and the failure information is Information related to the failure of the connection between the terminal and the cell group; a processing module configured to restore the connection between the terminal and the cell group according to the failure information, and/or determine the connection between the terminal and the cell group Failure reason; wherein, if the cell group is the primary cell group MCG, the cell group failure information message is an MCG failure information message, and if the cell group is a secondary cell group SCG, the cell group failure information message is SCG failure information message.
  • a communication device including: a processor and a memory; the memory stores computer instructions; the processor is configured to read the computer instructions and execute the computer instructions described in the first aspect or the second aspect Methods.
  • a computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to make a computer perform the method as described in the first aspect or the second aspect .
  • a computer program product is provided.
  • the computer program product When the computer program product is invoked by a computer, the computer executes the method described in the first aspect or the second aspect.
  • the terminal when the connection between the terminal and the cell group fails, the terminal obtains the failure information, and then sends a cell group failure information message carrying the failure information to the network device, and the network device assists the terminal to restore the connection with the cell group according to the failure information, and /or analyze the cause of the connection failure between the terminal and the cell group and optimize the parameter configuration to avoid subsequent connection failures and improve network stability.
  • FIG. 1 is a schematic diagram of recovery from a radio link failure in a current MCG
  • FIG. 2 is a schematic diagram of recovery from a radio link failure in a current SCG
  • FIG. 3 is a schematic flowchart of a method for processing a wireless communication link failure provided by an embodiment of the present disclosure
  • FIG. 4 is a schematic flowchart of a method for processing a wireless communication link failure provided by an embodiment of the present disclosure
  • FIG. 5 is a schematic flowchart of a method for processing a wireless communication link failure provided by an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart of a method for processing a wireless communication link failure provided by an embodiment of the present disclosure
  • FIG. 7 is a signaling interaction diagram for wireless communication link failure processing provided by an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a wireless communication link failure processing device provided by an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of a wireless communication link failure processing device provided by an embodiment of the present disclosure.
  • Fig. 10 is a schematic diagram of a communication device provided by the implementation of the present disclosure.
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD time division duplex
  • TDD time division duplex
  • UMTS universal mobile telecommunication system
  • 5th generation, 5G new radio
  • new radio new radio
  • a terminal is a device that can provide voice and/or data connectivity to users.
  • handheld devices with wireless connectivity vehicle-mounted devices, etc.
  • examples of some terminals are: mobile phone (mobile phone), tablet computer, notebook computer, palmtop computer, mobile internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) device, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, smart grid Wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, cellular phones, cordless phones, session initiation protocol , SIP) telephone, wireless local loop (wireless local loop, WLL) station, personal digital assistant (personal digital assistant, PDA), handheld device with wireless communication function, computing device or other processing device connected to a wireless modem, vehicle Devices, wearable devices, terminal devices in a 5G network or terminal devices in an evolved public land mobile network (PLMN), etc., are not limited in this embodiment of the present disclosure.
  • a network device is a device that provides wireless communication functions for the terminal.
  • g NB transmission reception point (transmission reception point, TRP), evolved node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), node B (Node B, NB), Base station controller (basestation controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), base band unit (base band unit, BBU), or wireless Fidelity (wireless fidelity, Wifi) access point (9access point, AP), etc.
  • the network device may include a centralized unit (centralized unit, CU) node, or a distributed unit (dist riituated unit, DU) node, or a RAN device including a CU node and a DU node, or a control plane CU node ( CU-CP nodes), user plane CU nodes (CU-UP nodes), and RAN devices of DU nodes, etc., which are not limited in this embodiment of the present disclosure.
  • a centralized unit centralized unit, CU
  • DU distributed unit
  • RAN device including a CU node and a DU node, or a control plane CU node ( CU-CP nodes), user plane CU nodes (CU-UP nodes), and RAN devices of DU nodes, etc., which are not limited in this embodiment of the present disclosure.
  • the shared spectrum network is different from the dedicated spectrum of the traditional network.
  • the shared spectrum may be shared by multiple networks. Therefore, network devices (such as base stations) and terminals may need to listen first and then talk before data transmission on the shared spectrum network ( Listen-Before-Talk, LBT) process is used to confirm whether the channel is occupied by other networks, and it can be used only when the channel is idle.
  • LBT Listen-Before-Talk
  • the random access process refers to the process from when the terminal sends a random access preamble and tries to access the network to when a basic signaling connection is established with the network. Its main purposes are as follows: 1 establish uplink synchronization; 2 establish a unique cell radio network temporary terminal identification (C-RNTI) to request the network to allocate uplink resources to the terminal. Therefore, random access is not only used for initial access, but also for new cell access during handover, access after wireless link failure, restoration of uplink synchronization when there is uplink/downlink data transmission, and uplink shared channel (Uplink Shared Channel, UL-SCH) resource request, etc.
  • C-RNTI unique cell radio network temporary terminal identification
  • the terminals and/or network devices may perform some or all of the steps in the embodiments of the present disclosure, these steps or operations are only examples, and the embodiments of the present disclosure may also perform other operations or various operations deformation.
  • each step may be performed in a different order presented in the embodiments of the present disclosure, and it may not be necessary to perform all operations in the embodiments of the present disclosure.
  • a terminal can perform data interaction with MCG and SCG at the same time.
  • the wireless link between the terminal and either side fails and the connection is disconnected, it will send the corresponding failure information message to the network device to inform Which side of the network device is disconnected and waits for the decision of the network device.
  • FIG. 1 is a schematic diagram of a current MCG recovering from a radio link failure.
  • the terminal detects the connection failure of the MCG, the terminal can indicate the connection failure of the MCG through the SCG side, and try to restore the MCG, that is, the terminal tries to restore the connection between the terminal and the MCG.
  • the terminal will start the T316 timer and send the MCG failure information message to the network device through the SN side. After the network device receives the MCG failure information message, it will send The terminal sends a radio resource control (Radio Resource Control, RRC) feedback message.
  • RRC Radio Resource Control
  • the T316 timer is a timer for the terminal to wait for re-entering the service area and initiate CELL UP DATE in the UTRAN Internal Area Paging Channel (UTRAN Registration Area Paging CHannel, URA_PCH or Cell Paging CHannel, CELL_PCH) state. Broadcast in the system information block (System information block, SIB1); when the terminal detects leaving the service area in the URA_PCH or CELL_PCH state, the T316 timer is started; when the terminal detects entering the service area, the T316 timer is stopped.
  • System information block System information block
  • the RRC feedback message Can include RRC reconfiguration message (RRC reconfiguration message), RRC release message (RRC release message) or mobilityFromNRCommand message or mobilityFromEutraCommand message that supports inter-rat switching.
  • RRC reconfiguration message RRC reconfiguration message
  • RRC release message RRC release message
  • mobilityFromNRCommand message or mobilityFromEutraCommand message that supports inter-rat switching.
  • the terminal When the terminal receives RRC reconfiguration message or mobilityFromNRCommand message or mobilityFromEutraCommand message, it will stop T316 timer, start T304 timer and carry out the handover process of the primary cell in MCG, if the handover is successful, stop the T304 timer and send a completion message to the network device; if the handover fails, wait for the T304 timer to expire, and the terminal will initiate reconstruction Procedure. If the terminal receives the RRC release message, the terminal will be in an idle/inactivate state.
  • FIG. 2 is a schematic diagram of a current SCG recovering from a radio link failure.
  • the terminal detects that the SCG connection fails, the terminal can also indicate the SCG connection failure through the MCG side, and try to restore the SCG, that is, the terminal tries to restore the connection between the terminal and the SCG.
  • RLF radio link failure
  • the terminal will send an SCG failure information message through The MN side sends the message to the network device, and the network device sends the RRC feedback message to the terminal after receiving the SCG failure information message.
  • the RRC feedback message may include an RRC reconfiguration message and an RRC release message.
  • the terminal When the terminal receives the RRC reconfiguration message, it will start the T304 timer and perform the handover process of the primary cell in the SCG. If the handover is successful, the T304 timer will be stopped, and the SCG of the terminal will restore the connection and send a completion message to the network device; If the SCG fails, the terminal will continue to send SCG failure information messages to the network device until the network device suspends or releases the SCG or successfully restores the SCG connection.
  • the connection between the terminal and the cell group fails, the content of the cell group failure information message is added, so that the connection between the terminal and the cell group can be specifically assisted, and/or the connection between the terminal and the cell can be analyzed.
  • Reasons for group connection failures optimize parameter configurations, avoid subsequent connection failures, and improve network stability.
  • Fig. 3 exemplarily shows a schematic flowchart of a method for processing a wireless communication link failure provided by an embodiment of the present disclosure. This process is based on the fact that the terminal sends failure information to the network device, which is used to assist the terminal to restore the connection with the cell group, and/or analyze the cause of the connection failure. As shown in the figure, the process may include the following steps:
  • the terminal obtains failure information.
  • the failure information is information related to the connection failure between the terminal and the cell group.
  • the failure information may include a received signal strength indicator (Received Signal Strength Indicator, RSSI) measurement result; or include a report generated by the terminal; or part of the information in the report; or a reason for the failure.
  • RSSI Received Signal Strength Indicator
  • S302 The terminal sends a cell group failure information message to the network device.
  • the failure information message is used to indicate that the connection between the terminal and the cell group in step S301 fails.
  • the failure information message includes the failure information in step S301, and the failure information is used to assist the terminal to restore the connection with the cell group, and/or analyze the cause of the connection failure between the terminal and the cell group.
  • the cell group failure information message is an MCG failure information message
  • the cell group failure information message is an SCG failure information message
  • the terminal when the connection between the terminal and the cell group fails, after the terminal obtains the failure information, the terminal sends a cell group failure information message carrying the failure information to the network device, which is used to assist the terminal to restore the connection with the cell group, and/or Or analyze the cause of the connection failure between the terminal and the cell group, and optimize the parameter configuration to avoid subsequent connection failures and improve network stability.
  • Fig. 4 exemplarily shows a schematic flowchart of a method for processing a wireless communication link failure provided by an embodiment of the present disclosure.
  • This process restores the connection between the terminal and the cell group based on the failure information received by the network device, and/or determines the cause of the connection failure between the terminal and the cell group.
  • the process includes the following steps:
  • S401 The network device receives a failure information message.
  • the network device receives the cell group failure information message sent by the terminal in step S302.
  • the cell group failure information message includes failure information.
  • the network device restores the connection between the terminal and the cell group according to the failure information, and/or determines the cause of the connection failure.
  • the network device restores the connection between the terminal and the cell group according to the failure information in step S401; or the network device determines the cause of the failure of the connection between the terminal and the cell group according to the failure information; or the network device restores the connection between the terminal and the cell group according to the failure information Connecting and determining the cause of the connection failure between the terminal and the cell group.
  • the network device restores the connection between the terminal and the cell group according to the failure information carried in the received cell group failure information message, and/or analyzes the connection failure between the terminal and the cell group and optimize the parameter configuration to avoid subsequent connection failures and improve network stability.
  • FIG. 5 is a schematic flowchart of a method for processing a wireless communication link failure provided by an embodiment of the present disclosure.
  • the process may include the following steps:
  • the terminal acquires failure information, where the failure information is information related to a connection failure between the terminal and the cell group.
  • the acquired failure information includes the RSSI measurement result corresponding to the measurement object in the shared spectrum resource. If the terminal fails to continuously perform uplink LBT listening on the BWP of the primary cell in the SCG group, the obtained failure information includes the RSSI measurement result corresponding to the measurement object in the shared spectrum resource.
  • the measurement objects may include frequency points and the like. This measurement object can be preconfigured.
  • S502 The terminal sends a cell group failure information message to the network device.
  • the cell group failure information message carries the RSSI measurement result corresponding to the measurement object in the shared spectrum resource obtained by the terminal in S301.
  • the cell group failure information message is an MCG failure information message
  • the cell group failure information message is an SCG failure information message
  • the cell group failure information message may also include failure reasons, such as RLF, reconfiguration synchronization failure, NR handover failure to other systems, etc., which is not limited in this embodiment of the present disclosure.
  • S503 The network device selects an idle shared network resource according to the failure information.
  • the network device selects an idle shared network resource to restore the connection of the cell group according to the RSSI measurement result corresponding to the measurement object in the shared spectrum resource carried in the cell group failure information message received in step S502.
  • the RSSI measurement is often used by high layers to evaluate whether the target cell of the shared frequency is occupied by other network equipment.
  • the network device selects an idle shared network resource to restore the MCG connection; if the network device receives If the RSSI measurement result corresponding to the measurement object in the shared spectrum resource carried in the SCG failure information message is used, the network device selects an idle shared network resource to restore the SCG connection.
  • the terminal when the terminal fails to continuously perform uplink LBT interception on the BWP in the cell group, the terminal adds the RSSI measurement result corresponding to the measurement object in the shared spectrum resource to the failure information message sent to the network device, so as to The auxiliary network device selects idle shared network resources to restore the connection of the cell group.
  • FIG. 6 is a schematic flowchart of a method for processing a wireless communication link failure provided by an embodiment of the present disclosure. As shown in the figure, the process includes the following steps:
  • the terminal acquires failure information, where the failure information is information related to a connection failure between the terminal and the cell group.
  • connection failure between the terminal and the cell group may occur during the random access process.
  • a beam can be understood as a space resource, and can refer to a transmission or reception precoding vector of energy transmission directivity.
  • the connection between the terminal and the cell group may also involve handover scenarios.
  • the failure of the connection between the terminal and the MCG or SCG triggers the random access process for other reasons (such as handover failure when the terminal is handed over from the source cell to the target cell).
  • unreasonable handover parameter configuration may lead to problems such as premature handover, too late handover, and handover to the wrong cell.
  • the handover is too early, which means that the connection failure occurs soon after the terminal is successfully handed over from the source cell to the target cell, or the connection failure occurs during the handover from the source cell to the target cell, and the terminal attempts to reestablish the connection in the source cell.
  • the terminal receives a handover command in the source cell, and a connection failure occurs soon after switching to the target cell, or a handover failure occurs during the handover process, and the terminal tries to reestablish a connection in the source cell.
  • Handover is too late, which means that the terminal fails to connect to the current cell for a period of time, and the terminal tries to reestablish the connection in other cells. For example, the terminal remains in the connected state in the current serving cell before the connection failure occurs. The quality of the current serving cell becomes worse, but the terminal does not receive a handover command, so the terminal detects that the connection fails in the current serving cell, and then the terminal tries to reestablish the connection in other cells.
  • a period of time may be a relatively long period of time, that is, a relatively long period of time, and this embodiment does not limit the specific length of the "period of time".
  • the value of a period of time may be greater than 1s, that is, the terminal fails to connect after being connected to the service of the current cell for at least 1s.
  • Handover to the wrong cell means that the terminal fails to connect soon after it is successfully handed over from the source cell to the target cell, or, during the process of switching from the source cell to the target cell, the terminal fails to connect source cell and target cell) attempt to re-establish the connection.
  • a terminal device receives a handover command in the source cell, and a connection failure occurs soon after switching to the target cell, or a handover failure occurs during the handover process, and the terminal tries to reestablish a connection in another cell.
  • the acquired failure information includes the report generated by the terminal or part of the information in the report.
  • the foregoing report may include at least one of an RLF report, a random access report, and a connection establishment failure report.
  • the RLF report may include the following information items:
  • the measurement result of the terminal on the source serving cell the measurement result of the signal reception strength of the source serving cell.
  • the measurement result of the terminal on the adjacent cell after the connection failure of the cell group the measurement result of the signal reception strength of the adjacent cell.
  • the identity of the cell where the terminal fails to connect that is, the identity of the cell where the terminal detects that the connection fails, or the identity of the target cell where the handover fails, which is not limited in this embodiment of the present disclosure.
  • the timer reported by the terminal which is used to indicate the time elapsed for the terminal to confirm acceptance of the handover initiation message to the MCG or SCG connection failure last time.
  • the failure reasons may include handover failure (handover failure, HOF), RLF, reconfiguration synchronization failure, NR handover failure to other systems, integrity check failure (integrity check failure), RRC connection reconfiguration failure, etc., this
  • handover failure handover failure
  • RLF handover failure
  • reconfiguration synchronization failure NR handover failure to other systems
  • integrity check failure integratedity check failure
  • RRC connection reconfiguration failure etc.
  • Radio Link failure sub-reasons for example, T310 timeout or random access problem, or radio link control layer protocol (Radio Link Control, RLC) reaches the maximum retransmission, or beam failure recovery failure (Beam Failure Recovery Failure, BFRF)
  • RLC Radio Link Control
  • BFRF Beam Failure Recovery Failure
  • TAC -Tracking Area Code
  • Bluetooth Bluetooth, BT
  • the RLF report includes information about the reconnection of the cell group, and the information about resuming the connection includes the identity of the cell that the network device selects to reconnect; or the information about resuming the connection includes an identifier of whether the reconnection is successful; or The information of the connection recovery includes the identification of the cell selected by the network device to resume the connection and the identification of whether the connection recovery is successful.
  • the above-mentioned cell identifier is a cell global identifier (CGI), or the cell identifier includes a physical cell identifier (PCI) and a frequency point.
  • CGI cell global identifier
  • PCI physical cell identifier
  • S602 The terminal sends a cell group failure information message to the network device.
  • the cell group failure information message carries the report generated by the terminal in S601 or part of the information in the report. Wherein, if the cell group is an MCG, the cell group failure information message is an MCG failure information message, and if the cell group is an SCG, the cell group failure information message is an SCG failure information message.
  • S603 The network device restores the connection between the terminal and the cell group according to the failure information.
  • the network device selects an appropriate random access procedure according to the report or part of the information carried in the cell group failure information message sent by the terminal to the network device in S602, so as to restore the connection of the cell group.
  • the network device restores the connection between the terminal and the cell group, it can also analyze the cause of the connection failure, so as to optimize the parameter configuration to avoid the problem next time.
  • mobility robustness optimization (mobility robustness optimization, MRO), records and reports the parameters in the mobility failure process (such as the parameters of each cell experienced in the mobility failure process) to the network device through the terminal, so that the network device The failed cell can be determined so as to better adjust handover related parameters.
  • Failure indication (failure indication) message means that the terminal selects a cell after the handover fails, and then re-connects to the network through RRC connection re-establishment or RRC connection establishment.
  • the network device may notify the terminal to retain the RLF report, and the network device may obtain the RLF report from the terminal when needed, for network optimization on the network device side.
  • Handover report (handover report) message It means that after the current node that fails on the network device side analyzes the failure indication message, if it finds that the node that can perform parameter optimization is not the current node, it will continue to send a handover report message to other nodes that can perform parameter optimization Internet equipment.
  • the network device restores the connection between the terminal and the cell group
  • the terminal is handed over from the source base station to the target base station, but after analysis by the target base station, it is found that the terminal has been handed over to the wrong target base station and should be handed over to another base station.
  • the first network device may send at least one item of information to the second network device.
  • the first network device may refer to the network device that receives the MCG failure information message or the SCG failure information message sent by the terminal; the second network device may refer to the network device that the terminal needs to perform parameter optimization after handover failure or RLF failure.
  • the first network device is a base station
  • the second network device is a core network device for information transfer between networks, for example, through the XN interface of the 5G base station and the NG interface of the 5G core network device for information transfer; or the first network device It is the first base station, and the second network device is the second base station for the information transfer between the networks, for example, through the X2 interface of the 4G base station and the S1 interface of the 4G core network device for information transfer; or the first network device is a distributed base station
  • the second network device of the distributed unit is a centralized unit (Centralized Unit, CU) in the distributed base station, which performs information transmission between networks, such as information transmission through the F1 interface.
  • the related information is as follows:
  • the handoff failure type of the terminal such as RLF.
  • the network device side selects the cell ID to resume the connection: the cell ID that attempts to re-establish after the connection fails.
  • the above-mentioned cell identity is CGI, or the cell identity includes PCI and frequency points.
  • Fig. 7 exemplarily shows a signaling interaction diagram for wireless communication link failure processing provided by an embodiment of the present disclosure.
  • the first network device uses a target base station as an example
  • the second network device uses other base stations as an example.
  • S701 The terminal switches from the source base station to the target base station.
  • S702 The handover of the terminal from the source base station to the target base station is successful.
  • RLF occurs between the terminal and the target base station.
  • S703b The terminal records the RLF report.
  • steps S501 to S503b refer to that the handover of the terminal from the source base station to the target base station is successful, but RLF occurs soon.
  • S704 The terminal sends an MCG failure information message to the target base station.
  • the MCG failure information message carries the RLF report recorded by the terminal in step S703b.
  • S705 The network configures the terminal to reconnect to other base stations.
  • the terminal reconnects to other base stations based on the configuration of the fast recovery mechanism for MCG connection failure in the terminal.
  • the target base station sends a notification message to the source base station.
  • the target base station in order to notify the source base station to optimize the parameter configuration, the target base station needs to first analyze the cause of the handover failure as the failure type of handover to the wrong cell, and then send a notification message to the source base station.
  • the RLF report In order for the target base station to analyze the cause of the connection failure, the RLF report needs to be sent to the target base station. This report can be sent to the target base station by the RLF report recorded by the terminal in step S703b when sending the MCG failure information message; or the target base station sends the RLF report to the terminal. Report acquisition request, to acquire the RLF report currently recorded by the terminal. The present disclosure is not limited herein.
  • the RLF report does not need to record the information of the cell where the connection is re-established, but the information of the cell where the connection is re-established needs to be recorded. Including the cell ID, and/or the ID of whether the connection is successfully restored.
  • the notification message may include the RLF report, the identifiers of the source cell and the target cell for handover, and the identifier of reselecting another cell after the terminal fails to connect with the MCG, etc.
  • the notification message may reuse the original failure indication message, or the handover report message, or add a new message. If multiplexing the failure indication message, you can add a new branch to indicate the recovery process of the terminal and MCG connection failure; if multiplexing the handover report message, you can multiplex the RRC connection re-established base station to indicate the target cell re-selected by the MCG, or add an item MCG reselected target cell identity message.
  • a random access report when the terminal is disconnected from the primary cell in the MCG or disconnected from the primary cell in the SCG, a random access report, a connection establishment failure report, At least one item of information in the RLF report is used to restore the connection between the terminal and the MCG or SCG, and further analyze the cause of the connection failure of the MCG or SCG, and optimize the configuration of network parameters.
  • Fig. 8 exemplifies a wireless communication link failure processing device provided by an embodiment of the present disclosure. As shown in the figure, the device includes an acquiring module 801 and a sending module 802 .
  • the obtaining module is configured to obtain failure information, where the failure information is information related to the connection failure between the terminal and the cell group.
  • a sending module configured to send the cell group failure information message to a network device, the cell group failure information message including the failure information, the failure information being used to assist the terminal to restore connection with the cell group, and /or determine the cause of the connection failure between the terminal and the cell group.
  • the cell group failure information message is the MCG failure information message
  • the cell group failure information message is the SCG failure information message information
  • Fig. 9 exemplifies a wireless communication link failure processing device provided by an embodiment of the present disclosure. As shown in the figure, the device includes a receiving module 901 and a processing module 902 .
  • the receiving module is configured to receive a cell group failure information message sent by a terminal, where the cell group failure information message includes failure information, and the failure information is information related to a connection failure between the terminal and the cell group.
  • the processing module is configured to restore the connection between the terminal and the cell group according to the failure information, and/or determine the cause of the connection failure between the terminal and the cell group.
  • the cell group failure information message is the MCG failure information message
  • the cell group failure information message is the SCG failure information message information
  • Fig. 10 exemplarily shows a schematic structural diagram of a communication device provided by an embodiment of the present disclosure.
  • the device may include: a processor 1001 , a memory 1002 and a bus interface 1003 .
  • the processor 1001 is responsible for managing the bus architecture and general processing, and the memory 1002 can store data used by the processor 1003 when performing operations.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1001 and various circuits of the memory represented by the memory 1002 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein.
  • the bus interface provides the interface.
  • the processor 1001 is responsible for managing the bus architecture and general processing, and the memory 1002 can store data used by the processor 1001 when performing operations.
  • the processes disclosed in the embodiments of the present disclosure may be applied to the processor 1001 or implemented by the processor 1001 .
  • each step of the signal processing flow can be completed by an integrated logic circuit of hardware in the processor 1001 or instructions in the form of software.
  • the processor 1001 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may realize or execute the The disclosed methods, steps and logical block diagrams.
  • a general purpose processor may be a microprocessor or any conventional processor or the like.
  • the steps of the method applied for in connection with the embodiments of the present disclosure may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory 1002, and the processor 1001 reads the information in the memory 1002, and completes the steps of the information processing flow in combination with its hardware.
  • the processor 1001 is configured to read computer instructions in the memory 1002 and execute a wireless communication link failure processing method in an embodiment of the present disclosure.
  • the above-mentioned communication device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect.
  • the same parts and beneficial effects as the example are described in detail.
  • An embodiment of the present disclosure also provides a computer-readable storage medium, the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to make a computer execute a wireless communication link failure processing method in the foregoing embodiments .
  • An embodiment of the present disclosure also provides a computer program product, which, when invoked by a computer, causes the computer to execute the wireless communication link failure processing method in the foregoing embodiments.
  • the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Accordingly, the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions
  • the device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

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Abstract

本公开公开了一种无线通信链路失败处理方法及装置，涉及无线通信技术领域。终端获取失败信息，所述失败信息为所述终端与小区组连接失败相关的信息；所述终端向网络设备发送小区组失败信息消息，所述小区组失败信息消息包括所述失败信息，网络设备接收终端发送的小区组失败信息消息中携带的失败信息，恢复所述终端与所述小区组的连接，和/或确定所述终端与所述小区组的连接失败原因。

Description

一种无线通信链路失败处理方法及装置
相关申请的交叉引用
本申请要求在2021年11月05日提交中国专利局、申请号为202111303060.7、申请名称为“一种无线通信链路失败处理方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及无线通信技术领域，尤其涉及一种无线通信链路失败处理方法及装置。
背景技术
终端可以同时与多个网设络备存在通信连接并可以收发数据，可以称之为多种无线接入技术双连接(Multi-RAT Dual Connectivity，MR-DC)。该多个网络设备之中，可以与终端交互无线资源控制消息，和核心网控制平面实体交互的网络设备称为网络主节点(master node，MN)，其他网络设备可以称之为网络辅节点(secondary node，SN)。由于终端在一个基站下可以同时接收多个小区的服务，因此网络主节点的小区组也可以称为主小区组(master cell group，MCG)，由一个主小区(Primary Cell，PCell)和一个或多个辅小区(Secondary Cell，SCell)组成。类似的，网络辅节点的小区组也可以称为辅小区组(secondary cell group，SCG)，同样由一个主小区和一个或多个辅小区组成。
在MR-DC架构下，当终端与MCG或SCG连接失败时，如何恢复终端与MCG或SCG连接和/或分析连接失败原因是目前需要解决的问题。
发明内容
本公开提供一种无线通信链路失败处理方法及装置，用以辅助终端与小区组恢复连接，和/或分析终端与小区组的连接失败原因。
第一方面，提供一种无线通信链路失败处理方法，包括：终端获取失败信息，所述失败信息为所述终端与小区组连接失败相关的信息；
所述终端向网络设备发送小区组失败信息消息，所述小区组失败信息消息包括所述失败信息，所述失败信息用于辅助所述终端与所述小区组恢复连接，和/或确定所述终端与所述小区组的连接失败原因；其中，若所述小区组为主小区组MCG，则所述小区组失败信息消息为MCG失败信息消息，若所述小区组为辅小区组SCG，则所述小区组失败信息消息为SCG失败信息消息。
可选的，所述终端获取失败信息，包括：所述终端在主小区组中主小区的带宽部分BWP上连续进行上行LBT，若发生失败，则获取失败信息，所述失败信息包括共享频谱资源中的测量对象对应的RSSI测量结果；或者所述终端在辅小区组中主小区的BWP上连续进行上行LBT倾听，若发生失败，则获取失败信息，所述失败信息包括共享频谱资源中的测量对象对应的RSSI测量结果。
可选的，所述终端获取失败信息，包括：若所述终端与主小区组中主小区连接断开或者与辅小区组中的主小区的连接断开，所述终端获取失败信息，所述失败信息包括所述终端生成的报告或所述报告中的部分信息。
可选的，所述终端生成的报告包括以下至少一项：无线链路失败报告、随机接入报告、连接建立失败报告。
可选的，所述无线链路失败报告包括以下至少一项：网络侧选择重新恢复连接的小区标识、重新恢复连接是否成功的标识。
可选的，所述小区标识为小区全球标识CGI，或者所述小区标识包括物理小区标识PCI和频点。
第二方面，提供一种无线通信链路失败处理方法，包括：
第一网络设备接收终端发送的小区组失败信息消息，所述小区组失败信息消息中包括失败信息，所述失败信息为所述终端与小区组连接失败相关的 信息；所述第一网络设备根据所述失败信息，恢复所述终端与所述小区组的连接，和/或确定所述终端与所述小区组的连接失败原因；其中，若所述小区组为主小区组MCG，则所述小区组失败信息消息为MCG失败信息消息，若所述小区组为辅小区组SCG，则所述小区组失败信息消息为SCG失败信息消息。
可选的，所述失败信息包括共享频谱资源中的测量对象对应的接收信号强度指示RSSI测量结果，所述RSSI测量结果是所述终端在主小区组中主小区的带宽部分BWP上连续进行LBT侦听失败时获取的，或者所述RSSI测量结果是所述终端在辅小区组中主小区的BWP上连续进行上行LBT侦听失败时获取的。
可选的，所述失败信息包括所述终端生成的报告或所述报告中的部分信息，所述报告是所述终端在与主小区组中主小区连接断开或者与辅小区组中的主小区的连接断开时获取的。
可选的，所述报告包括以下至少一项：无线链路失败报告、随机接入报告、连接建立失败报告。
可选的，所述无线链路失败报告包括以下至少一项：网络侧选择重新恢复连接的小区标识、重新恢复连接是否成功的标识。
可选的，所述方法还包括：所述第一网络设备将以下信息中的至少一项发送给第二网络设备：所述终端的切换失败类型；所述终端的切换源小区的小区标识和目标小区的小区标识；所述终端连接失败后网络侧选择重新恢复连接的小区标识；所述终端连接失败后重新恢复连接成功或失败标识；所述终端的无线链路失败报告。
可选的，所述小区标识为小区全球标识CGI，或者所述小区标识包括物理小区标识PCI和频点。
第三方面，提供一种无线通信链路失败处理装置，包括：获取模块，被配置为获取失败信息，所述失败信息为所述终端与小区组连接失败相关的信息；发送模块，被配置为向网络设备发送所述小区组失败信息消息，所述小 区组失败信息消息包括所述失败信息，所述失败信息用于辅助所述终端与所述小区组恢复连接，和/或确定所述终端与所述小区组的连接失败原因；其中，若所述小区组为主小区组MCG，则所述小区组失败信息消息为MCG失败信息消息，若所述小区组为辅小区组SCG，则所述小区组失败信息消息为SCG失败信息消息。
第四方面，提供一种无线通信链路失败处理装置，包括：接收模块，被配置为接收终端发送的小区组失败信息消息，所述小区组失败信息消息中包括失败信息，所述失败信息为所述终端与小区组连接失败相关的信息；处理模块，被配置为根据所述失败信息，恢复所述终端与所述小区组的连接，和/或确定所述终端与所述小区组的连接失败原因；其中，若所述小区组为主小区组MCG，则所述小区组失败信息消息为MCG失败信息消息，若所述小区组为辅小区组SCG，则所述小区组失败信息消息为SCG失败信息消息。
第五方面，提供一种通信装置，包括：处理器、存储器；所述存储器，存储计算机指令；所述处理器，用于读取所述计算机指令，执行如第一方面或第二方面所述的方法。
第六方面，提供一种计算机可读存储介质，所述计算机可读存储介质存储有计算机可执行指令，所述计算机可执行指令用于使计算机执行如第一方面或第二方面所述的方法。
第七方面，提供一种计算机程序产品，所述计算机程序产品在被计算机调用时，使得所述计算机执行如第一方面或第二方面所述的方法。
本公开实施例中，终端与小区组连接失败时，终端获取失败信息，然后向网络设备发送携带有该失败信息的小区组失败信息消息，网络设备根据失败信息辅助终端与小区组恢复连接，和/或分析终端与小区组的连接失败原因并优化参数配置，避免后续再发生连接失败问题，提高网络稳定性。
附图说明
图1为目前的一种MCG发生无线链路失败恢复的示意图；
图2为目前的一种SCG发生无线链路失败恢复的示意图；
图3为本公开实施例提供的一种无线通信链路失败处理方法流程示意图；
图4为本公开实施例提供的一种无线通信链路失败处理方法流程示意图；
图5为本公开实施例提供的一种无线通信链路失败处理方法流程示意图；
图6为本公开实施例提供的一种无线通信链路失败处理方法流程示意图；
图7为本公开实施例提供的一种无线通信链路失败处理的信令交互图；
图8为本公开实施例提供的一种无线通信链路失败处理装置示意图；
图9为本公开实施例提供的一种无线通信链路失败处理装置示意图；
图10为本公开实施提供的一种通信装置示意图。
具体实施方式
为了使本公开的目的、技术方案和优点更加清楚，下面将结合附图对本公开作进一步地详细描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本公开保护的范围。
以下对本公开实施例中的部分用语进行解释说明，以便于本领域技术人员理解。
(1)本公开实施例中，名词“网络”和“系统”经常交替使用，但本领域的技术人员可以理解其含义。
(2)本公开实施例中术语“多个”是指两个或两个以上，其它量词与之类似。
(3)“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本公开涉及到的相关设备以及技术方案如下：
本公开实施例的技术方案可以应用于各种通信系统，例如：长期演进(long  termevolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunication system，UMTS)、第五代(5th generation，5G)系统或新无线(new radio，NR)等。
(1)终端，是一种可以向用户提供语音和/或数据连通性的设备。例如，具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，5G网络中的终端设备或者演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等，本公开实施例对此并不限定。
(2)网络设备，是一种为所述终端提供无线通信功能的设备。例如：g NB、传输接收点(transmission reception point，TRP)、演进型节点B(evol ved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(basestation controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(base band unit，BBU)，或无线保真(w ireless fidelity，Wifi)接入点(9access point，AP)等。在一种网络结构中，网络设备可以包括集中单元(centralized unit，CU)节点、或分布单元(dist  ributed unit，DU)节点、或包括CU节点和DU节点的RAN设备、或者控制面CU节点(CU-CP节点)和用户面CU节点(CU-UP节点)以及DU节点的RAN设备等，本公开实施例对此并不限定。
(3)共享频谱网络与传统网络的专用频谱不同，共享频谱可能被多个网络共同使用，因此网络设备(比如基站)和终端在共享频谱网络进行数据传输之前，可能需要先进行先听后说(Listen-Before-Talk，LBT)过程，用来确认信道是否被其他网络占用了，只有信道空闲时，才可以使用。
(4)随机接入过程是指从终端发送随机接入前导码开始尝试接入网络到与网络间建立起基本的信令连接之前的过程。其主要目的如下：①建立上行链路同步；②建立一个唯一小区无线网络临时终端标识(Cell Radio Network Temmporary Identify，C-RNTI)请求网络分配给终端上行链路资源。所以随机接入不仅用于初始化接入，而且还可以用于切换过程中的新小区接入、无线链路失败后的接入、在有上/下行数据传输时重新恢复上行同步以及上行共享信道(Uplink Shared Channel，UL-SCH)资源请求等。
可以理解的，本公开实施例中，终端和/或网络设备可以执行本公开实施例中的部分或全部步骤，这些步骤或操作仅是示例，本公开实施例还可以执行其它操作或者各种操作的变形。此外，各个步骤可以按照本公开实施例呈现的不同的顺序来执行，并且有可能并非要执行本公开实施例中的全部操作。
在MR-DC架构下，一个终端可以同时与MCG和SCG进行数据交互，当终端与其中任意一侧发生无线链路失败导致连接断开时，都会将相应的失败信息消息发送给网络设备，告知网络设备哪一侧的连接断开，并等待网络设备的决策。
图1为目前一种MCG发生无线链路失败恢复的示意图。终端检测到MCG发生连接失败，终端可以通过SCG这一侧指示MCG的连接失败，尝试进行MCG恢复，即，终端尝试恢复该终端与MCG之间的连接。如图所示，当MCG发生无线链路失败导致连接断开时，终端将开启T316定时器，并将MCG失败信息消息通过SN侧发送给网络设备，网络设备收到MCG失败信息消息 后，给终端发送无线资源控制(Radio Resource Control，RRC)反馈消息。其中，T316定时器是UTRAN内部区域寻呼信道(UTRAN Registration Area Paging CHannel，URA_PCH或小区寻呼信道(CELL Paging CHannel，CELL_PCH)状态下，终端等待重新进入服务区并发起CELL UP DATE的定时器，在系统信息块(System information block，SIB1)中广播；当终端在URA_PCH或CELL_PCH状态下检测到离开服务区域则启动T316定时器；当终端检测到进入服务区域停止T316定时器。其中，RRC反馈消息可包括RRC重配消息(RRC reconfiguration message)、RRC释放消息(RRC release message)或支持inter-rat切换的mobilityFromNRCommand消息或mobilityFromEutraCommand消息。当终端收到RRC重配消息或mobilityFromNRCommand消息或mobilityFromEutraCommand消息后将停止T316定时器，开启T304定时器并进行MCG中主小区的切换过程，若切换成功，则停止T304计时器并发送完成消息给网络设备；若切换失败，则待T304定时器超时，终端将发起重建过程。若终端收到RRC释放消息，则终端将处于空闲/非激活(idle/inactivate)状态。
图2为目前一种SCG发生无线链路失败恢复的示意图。终端检测到SCG发生连接失败，终端也可以通过MCG这一侧指示SCG的连接失败，尝试进行SCG恢复，即，终端尝试恢复该终端与SCG之间的连接。如图所示，当SCG发生无线链路失败(radio link failure，RLF)、同步重配置失败、SCG配置失败和SCG完整性校验失败等导致连接断开时，终端将发送SCG失败信息消息通过MN侧发送给网络设备，网络设备收到SCG失败信息消息后，给终端发送RRC反馈消息。其中，RRC反馈消息可包括RRC重配消息、RRC释放消息。当终端收到RRC重配消息后，将开启T304定时器并进行SCG中主小区的切换过程，若切换成功，则停止T304定时器，终端的SCG恢复连接并发送完成消息给网络设备；若切换失败，则终端将继续发送SCG失败信息消息给网络设备，直到网络设备挂起或释放SCG或成功恢复SCG连接为止。
本公开实施例中，在终端与小区组(MCG或SCG)连接失败时，增加小区组失败信息消息中的内容，从而可以针对性的辅助终端与小区组恢复连接，和/或分析终端与小区组的连接失败原因，优化参数配置，避免后续再发生连接失败问题，提高网络稳定性。
下面结合附图对本公开实施例进行详细说明。
图3示例性出了本公开实施例提供的一种无线通信链路失败处理方法流程示意图。该流程基于终端向网络设备发送失败信息，用于辅助终端与小区组恢复连接，和/或分析连接失败原因。如图所示，该流程可包括如下步骤：
S301：终端获取失败信息。其中，失败信息为所述终端与小区组连接失败相关的信息。
可选的，失败信息可以包括接收信号强度指示(Received Signal Strength Indicator，RSSI)测量结果；或者包括终端生成的报告；或者该报告中的部分信息；或者失败原因等。本公开实施例对此不作限定。
S302：终端向网络设备发送小区组失败信息消息。
该步骤中，失败信息消息用于指示步骤S301中的终端与小区组连接失败。
其中，失败信息消息中包括步骤S301中的失败信息，该失败信息用于辅助终端与小区组恢复连接，和/或分析终端与小区组的连接失败原因。
其中，若小区组为MCG，则小区组失败信息消息为MCG失败信息消息，若小区组为SCG，则小区组失败信息消息为SCG失败信息消息。
本公开实施例中，在终端与小区组连接失败时，终端获取失败信息后，终端向网络设备发送携带有该失败信息的小区组失败信息消息，用于辅助终端与小区组恢复连接，和/或分析终端与小区组的连接失败原因，并优化参数配置，避免后续再发生连接失败问题，提高网络稳定性。
图4示例性出了本公开实施例提供的一种无线通信链路失败处理方法流程示意图。该流程基于网络设备接收的失败信息，来恢复终端与小区组的连 接，和/或确定终端与小区组的连接失败原因。如图所示，该流程包括如下步骤：
S401：网络设备接收失败信息消息。
该步骤中，网络设备接收步骤S302中终端发送的小区组失败信息消息。其中，小区组失败信息消息中包括失败信息。
S402：网络设备根据失败信息，恢复终端与小区组的连接，和/或确定连接失败原因。
该步骤中，网络设备根据步骤S401中的失败信息，恢复终端与小区组的连接；或者网络设备根据失败信息确定终端与小区组的连接失败原因；或者网络设备根据失败信息恢复终端与小区组的连接和确定终端与小区组的连接失败原因。
本公开实施例中，在终端与小区组连接失败时，网络设备根据接收小区组失败信息消息中携带的失败信息，来恢复终端与小区组的连接，和/或分析终端与小区组的连接失败原因，并优化参数配置，避免后续再发生连接失败问题，提高网络稳定性。
上述图3和图4所示的流程，可应用在场景一中。在场景一中，终端在小区组中主小区的BWP上连续进行上行LBT侦听失败时，终端发送小区组失败信息消息时，通过该消息将失败信息发送给网络设备，用于辅助网络设备判断目标小区资源是否被占用，并选择空闲的共享网络资源。
图5为本公开实施例提供的一种无线通信链路失败处理方法流程示意图。
如图所示，该流程可包括如下步骤：
S501：终端获取失败信息，失败信息为所述终端与小区组连接失败相关的信息。
该步骤中，若终端在MCG中主小区的BWP上连续进行上行LBT侦听失败，则获取的失败信息中包括共享频谱资源中的测量对象对应的RSSI测量结果。若终端在SCG组中主小区的BWP上连续进行上行LBT倾听失败，则获 取的失败信息中包括共享频谱资源中的测量对象对应的RSSI测量结果。
所述测量对象可包括频点等。该测量对象可以预先配置。
S502：终端向网络设备发送小区组失败信息消息。
该步骤中，小区组失败信息消息携带有S301中终端获取共享频谱资源中的测量对象对应的RSSI测量结果。
其中，若小区组为MCG，则小区组失败信息消息为MCG失败信息消息，若小区组为SCG，则小区组失败信息消息为SCG失败信息消息。
可选的，该小区组失败信息消息中还可包括失败原因，比如RLF、重配同步失败、NR向其他系统切换失败等，本公开实施例对此不作限定。
S503：网络设备根据失败信息选择空闲的共享网络资源。
该步骤中，网络设备根据步骤S502中接收的小区组失败信息消息中携带的共享频谱资源中的测量对象对应的RSSI测量结果，选择空闲的共享网络资源来恢复小区组的连接。其中，该RSSI测量常常被高层用来评估共享频率的目标小区是否被其他网络设备占用。示例性的，若网络设备接收的是MCG失败信息消息中携带的共享频谱资源中的测量对象对应的RSSI测量结果，则网络设备选择空闲的共享网络资源来恢复MCG的连接；若网络设备接收的SCG失败信息消息中携带的共享频谱资源中的测量对象对应的RSSI测量结果，则网络设备选择空闲的共享网络资源来恢复SCG的连接。
本公开实施例中，当终端与小区组中的BWP上连续进行上行LBT侦听失败时，终端在向网络设备发送失败信息消息中增加了共享频谱资源中的测量对象对应的RSSI测量结果，以辅助网络设备选择空闲的共享网络资源来恢复小区组的连接。
上述图3和图4所示的流程，可应用在场景二中。在场景二中，当终端与小区组(比如MSG或SCG)的连接断开时，通过MCG失败信息消息或SCG失败信息消息，将失败信息发送给网络设备，以辅助该终端与小区组恢复连接，和/或分析该终端与小区组的连接失败原因。
图6为本公开实施例提供的一种无线通信链路失败处理方法流程示意图。如图所示，该流程包括如下步骤：
S601：终端获取失败信息，失败信息为所述终端与小区组连接失败相关的信息。
该步骤中，终端与小区组连接失败可能发生在随机接入过程中。
示例性的，终端在MCG或SCG上发生波束(beam)失败后，终端按照波束失败恢复配置触发随机接入过程。其中，波束可以理解为空间资源，可以指能量传输指向性的发送或接收预编码向量。
在终端与小区组的连接还可以涉及到切换场景。示例性的，终端与MCG或SCG连接失败为其他原因(比如终端从源小区切换到目标小区时切换失败)触发随机接入过程。在切换过程中，切换参数配置不合理可能导致切换过早、切换过迟、切换到错误小区等问题。其中，切换过早，是指终端成功从源小区切换到目标小区后很快发生连接失败，或者，在从源小区切换到目标小区的过程中发生连接失败，终端在源小区尝试重建连接。比如终端在源小区收到切换命令，切换到目标小区后很快发生连接失败或者在切换过程中发生切换失败，终端在源小区尝试重建连接。
切换过迟，是指终端在当前小区服务连接一段时间后发生连接失败，终端在其他小区尝试重建连接。比如终端在发生连接失败之前在当前服务小区保持在连接态。当前服务小区质量变差，但是终端没有收到切换命令，因此终端在当前服务小区检测到连接失败，然后终端在其他小区尝试重建连接。
需要说明的是，本公开实施例中，“一段时间”可以是较长的一段时间，即一个较长的时间段，本实施例对该“一段时间”的具体长度不做限定。例如，一段时间的值可以大于1s，即终端在当前小区服务连接了至少1s后发生连接失败。
切换到错误小区，是指终端成功从源小区切换到目标小区后很快发生连接失败，或者，在从源小区切换到目标小区的过程中发生连接失败，终端在其它小区(其它小区为不同于源小区和目标小区的小区)尝试重建连接。比如终 端设备在源小区收到切换命令，切换到目标小区后很快发生连接失败或者在切换过程中发生切换失败，终端在其它小区尝试重建连接。
该步骤中，若终端与MCG中主小区连接断开或者与SCG中的主小区的连接断开时，获取的失败信息包括该终端生成的报告或报告中的部分信息。
可选的，上述报告可包括RLF报告、随机接入报告、连接建立失败报告中至少一项。
其中，RLF报告可包括以下信息项：
-终端对源服务小区的测量结果：对源服务小区的信号接收强度的测量结果。
-终端在小区组连接失败后对相邻小区的测量结果：对相邻小区的信号接收强度的测量结果。
-终端的位置信息。
-终端连接失败的小区标识，即，终端检测到连接失败的小区标识，或者切换失败的目标小区标识，本公开实施例对此不作限定。
-终端上报的定时器，该定时器用于指示终端上一次确认接受切换发起消息到MCG或SCG连接失败所经历的时长。
-连接失败原因。
可选的，失败原因可包括切换失败(handover failure，HOF)、RLF、重配同步失败、NR向其他系统切换失败、完整性校验失败(integrity check failure)、RRC连接重配置失败等，本公开实施例对此不作限定。
-终端连接失败时使用的小区无线网络临时标识C-RNTI。
-无线链路失败子原因，比如，T310超时或者随机接入问题，或者无线链路控制层协议(Radio Link Control，RLC)达到最大重传，或者波束失败恢复失败(Beam Failure Recovery Failure，BFRF)本公开实施例对此不作限定。
-连接失败小区的跟踪区域标识(Tracking Area Code，TAC)。
-蓝牙(Blue tooth，BT)相关记录结果。
-无线区域网。
可选的，RLF报告中包括小区组重新恢复连接的信息，该重新恢复连接的信息包括网络设备选择重新恢复连接的小区标识；或者重新恢复连接的信息包括重新恢复连接是否成功的标识；或者重新恢复连接的信息包括网络设备选择重新恢复连接的小区标识和重新恢复连接是否成功的标识。
可选的，上述小区标识为小区全球标识(cell global identifier，CGI)，或者该小区标识包括物理小区标识(physical cell identifier，PCI)和频点。
S602：终端向网络设备发送小区组失败信息消息。
该小区组失败信息消息携带有S601中终端生成的报告或报告中的部分信息。其中，若小区组为MCG，则小区组失败信息消息为MCG失败信息消息，若小区组为SCG，则小区组失败信息消息为SCG失败信息消息。
S603：网络设备根据失败信息，恢复终端与小区组的连接。
该步骤中，网络设备根据S602中终端向网络设备发送小区组失败信息消息中携带的报告或报告中的部分信息选择合适的随机接入过程，以此恢复小区组的连接。
网络设备在恢复终端与小区组的连接时还可以分析连接失败原因，以此优化参数配置避免下次再发生问题。
示例性的，移动健壮性优化(mobility robustness optimisation，MRO)，通过终端记录和上报移动性失败过程中的参数(比如移动性失败过程中所经历的各个小区的参数)给网络设备，使得网络设备可以确定发生失败的小区，以便更好的调整切换相关参数。
传统的MRO存在网络间的消息传递，涉及的消息内容如下：
失败指示(failure indication)消息：是指终端在切换失败后进行小区选择，再通过RRC连接重建立或者RRC连接建立重新接入网络。可选的，网络设备可通知终端保留RLF报告，网络设备在需要时可向终端获取，用于网络设备侧的网络优化。
移交报告(handover report)消息：是指网络设备侧发生失败的当前节点 分析了失败指示消息后，若发现可进行参数优化的节点不是当前节点，则继续发送移交报告消息给可进行参数优化的其他网络设备。
下面以传统的常见MRO切换到错误小区失败类型为例进行描述。
示例性的，网络设备在恢复终端与小区组的连接时，是将终端从源基站切换到了目标基站，但目标基站分析后发现终端切换到了错误的目标基站，应该切换到其他基站。在此种场景下存在着网络设备间的信息传递。
可选的，第一网络设备可将信息中的至少一项发送给第二网络设备。其中，第一网络设备可以是指接收终端发送的MCG失败信息消息或SCG失败信息消息的网络设备；第二网络设备可以是指终端在切换失败或者RLF失败后，需要进行参数优化的网络设备。可选的，第一网络设备为基站，第二网络设备为核心网设备进行网络间的信息传递，比如通过5G基站的XN接口和5G核心网设备的NG接口进行信息传递；或者第一网络设备为第一基站，第二网络设备为第二基站进行网络间的信息传递，比如通过4G基站的X2接口和4G核心网设备的S1接口进行信息传递；或者第一网络设备为分布式基站中的分布单元(Distributed Unit，DU)第二网络设备为分布式基站中的集中单元(Centralized Unit，CU)进行网络间的信息传递，比如通过F1接口进行信息传递。
可选的，涉及到的信息如下：
-终端的切换失败类型，比如RLF。
-终端的切换源小区的小区标识和目标小区的小区标识。
-终端连接失败后网络设备侧选择重新恢复连接的小区标识：连接失败后尝试重建立的小区标识。
-终端连接失败后重新恢复连接成功或失败标识。
-终端记录的RLF报告。
其中，上述小区标识为CGI，或者该小区标识包括PCI和频点。
图7示例性出了本公开实施例提供的一种无线通信链路失败处理的信令 交互图。其中，第一网络设备以目标基站为例，第二网络设备以其他基站为例。
S701：终端从源基站切换到目标基站。
S702：终端从源基站切换到目标基站切换成功。
S703a：终端与目标基站发生RLF。
S703b：终端记录RLF报告。
其中，步骤S501至S503b是指终端从源基站切换到目标基站成功，但很快发生RLF。
S704：终端发送MCG失败信息消息给目标基站。
该步骤中，MCG失败信息消息中携带有步骤S703b中终端记录RLF报告。
S705：网络配置终端重新接入到其他基站。
该步骤中，基于终端配置了MCG连接失败快速恢复机制，终端重新接入到其他基站。
S706：目标基站发送通知消息给源基站。
该步骤中，为了通知源基站优化参数配置，目标基站需要首先分析切换失败原因为切换到错误小区失败类型，之后将通知消息发送给源基站。为了目标基站分析连接失败原因，需要将RLF报告发送给目标基站，该报告可以是在发送MCG失败信息消息时将步骤S703b终端记录的RLF报告发送给目标基站的；或者是目标基站给终端发送RLF报告获取请求，获取终端当前记录的RLF报告。本公开在此不做限制。
需要说明的是，因为终端与MCG连接失败后实际上未发生RRC连接重建立，因此RLF报告中可以不再记录连接重建立的小区信息，但是需要记录重新恢复连接的小区信息，该小区消息可包括小区标识，和/或重新恢复连接是否成功标识。
可选的，通知消息可包括RLF报告、切换的源小区和目标小区的标识、终端与MCG连接失败后重新选择其他小区的标识等。
可选的，通知消息可以复用原有的失败指示消息，或者移交报告消息，或者新增消息。如果复用失败指示消息，可新增分支表示终端与MCG连接失败恢复过程；如果复用移交报告消息，可以复用RRC连接重建立的基站表示MCG重新选择的目标小区，也可以新增一项MCG重新选择的目标小区标识的消息。
本公开实施例中，当终端与MCG中主小区连接断开或者与SCG中的主小区的连接断开时，在给网络设备发送失败信息消息中增加了随机接入报告、连接建立失败报告、RLF报告中至少一项信息，用于恢复终端与MCG或SCG的连接，并进一步分析MCG或SCG连接失败原因，优化网络参数配置。
图8示例性出了本公开实施例提供的一种无线通信链路失败处理装置。如图所示，该装置包括获取模块801、发送模块802。
获取模块，被配置获取失败信息，所述失败信息为所述终端与小区组连接失败相关的信息。
发送模块，被配置为向网络设备发送所述小区组失败信息消息，所述小区组失败信息消息包括所述失败信息，所述失败信息用于辅助所述终端与所述小区组恢复连接，和/或确定所述终端与所述小区组的连接失败原因。
其中，若所述小区组为主小区组MCG，则所述小区组失败信息消息为MCG失败信息消息，若所述小区组为辅小区组SCG，则所述小区组失败信息消息为SCG失败信息消息。
在此需要说明的是，本公开实施例提供的上述装置，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
图9示例性出了本公开实施例提供的一种无线通信链路失败处理装置。如图所示，该装置包括接收模块901、处理模块902。
接收模块，被配置为接收终端发送的小区组失败信息消息，所述小区组失败信息消息中包括失败信息，所述失败信息为所述终端与小区组连接失败相关的信息。
处理模块，被配置为根据所述失败信息，恢复所述终端与所述小区组的连接，和/或确定所述终端与所述小区组的连接失败原因。
其中，若所述小区组为主小区组MCG，则所述小区组失败信息消息为MCG失败信息消息，若所述小区组为辅小区组SCG，则所述小区组失败信息消息为SCG失败信息消息。
在此需要说明的是，本公开实施例提供的上述装置，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
图10示例性示出了本公开实施例提供的通信装置的结构示意图。
如图所示，该装置可包括：处理器1001、存储器1002以及总线接口1003。
处理器1001负责管理总线架构和通常的处理，存储器1002可以存储处理器1003在执行操作时所使用的数据。
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1001代表的一个或多个处理器和存储器1002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。处理器1001负责管理总线架构和通常的处理，存储器1002可以存储处理器1001在执行操作时所使用的数据。
本公开实施例揭示的流程，可以应用于处理器1001中，或者由处理器1001实现。在实现过程中，信号处理流程的各步骤可以通过处理器1001中的硬件的集成逻辑电路或者软件形式的指令完成。处理器1001可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本公开 实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本公开实施例所申请的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器1002，处理器1001读取存储器1002中的信息，结合其硬件完成信息处理流程的步骤。
具体地，处理器1001，用于读取存储器1002中的计算机指令并执行本公开实施例中的一种无线通信链路失败处理方法。
在此需要说明的是，申请本公开实施例提供的上述通信装置，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
本公开实施例还提供了一种计算机可读存储介质，计算机可读存储介质存储有计算机可执行指令，计算机可执行指令用于使计算机执行上述实施例中的一种无线通信链路失败处理方法。
本公开实施例还提供了一种计算机程序产品，所述计算机程序产品在被计算机调用时，使得所述计算机执行上述实施例中的一种无线通信链路失败处理方法。
本领域内的技术人员应明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入 式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (30)

  1. 一种无线通信链路失败处理方法，其中，包括：
    终端获取失败信息，所述失败信息为所述终端与小区组连接失败相关的信息；
    所述终端向网络设备发送小区组失败信息消息，所述小区组失败信息消息包括所述失败信息，所述失败信息用于辅助所述终端与所述小区组恢复连接，和/或确定所述终端与所述小区组的连接失败原因；
    其中，若所述小区组为主小区组MCG，则所述小区组失败信息消息为MCG失败信息消息，若所述小区组为辅小区组SCG，则所述小区组失败信息消息为SCG失败信息消息。
  2. 如权利要求1所述的方法，其中，所述终端获取失败信息，包括：
    所述终端在主小区组中主小区的带宽部分BWP上连续进行上行LBT侦听，若发生失败，则获取失败信息，所述失败信息包括共享频谱资源中的测量对象对应的RSSI测量结果；或者
    所述终端在辅小区组中主小区的BWP上连续进行上行LBT侦听，若发生失败，则获取失败信息，所述失败信息包括共享频谱资源中的测量对象对应的RSSI测量结果。
  3. 如权利要求1所述的方法，其中，所述终端获取失败信息，包括：
    若所述终端与主小区组中主小区连接断开或者与辅小区组中的主小区的连接断开，则所述终端获取失败信息，所述失败信息包括所述终端生成的报告或所述报告中的部分信息。
  4. 如权利要求3所述的方法，其中，所述终端生成的报告包括以下至少一项：无线链路失败报告、随机接入报告、连接建立失败报告。
  5. 如权利要求4所述的方法，其中，所述无线链路失败报告包括以下至少一项：网络侧选择重新恢复连接的小区标识、重新恢复连接是否成功的标识。
  6. 如权利要求4或5所述的方法，其中，所述小区标识为小区全球标识CGI，或者所述小区标识包括物理小区标识PCI和频点。
  7. 一种无线通信链路失败处理方法，其中，包括：
    第一网络设备接收终端发送的小区组失败信息消息，所述小区组失败信息消息包括失败信息，所述失败信息为所述终端与小区组连接失败相关的信息；
    所述第一网络设备根据所述失败信息，恢复所述终端与所述小区组的连接，和/或确定所述终端与所述小区组的连接失败原因；
    其中，若所述小区组为主小区组MCG，则所述小区组失败信息消息为MCG失败信息消息，若所述小区组为辅小区组SCG，则所述小区组失败信息消息为SCG失败信息消息。
  8. 如权利要求7所述的方法，其中，所述失败信息包括共享频谱资源中的测量对象对应的接收信号强度指示RSSI测量结果，所述RSSI测量结果是所述终端在主小区组中主小区的带宽部分BWP上连续进行LBT侦听失败时获取的，或者所述RSSI测量结果是所述终端在辅小区组中主小区的BWP上连续进行上行LBT侦听失败时获取的。
  9. 如权利要求7所述的方法，其中，所述失败信息包括所述终端生成的报告或所述报告中的部分信息，所述报告是所述终端在与主小区组中主小区连接断开或者与辅小区组中的主小区的连接断开时获取的。
  10. 如权利要求9所述的方法，其中，所述报告包括以下至少一项：无线链路失败报告、随机接入报告、连接建立失败报告。
  11. 如权利要求10所述的方法，其中，所述无线链路失败报告中包括以下至少一项：
    网络侧选择重新恢复连接的小区标识、重新恢复连接是否成功的标识。
  12. 如权利要求8-11任一项所述的方法，其中，所述方法还包括：
    所述第一网络设备将以下信息中的至少一项发送给第二网络设备：
    所述终端的切换失败类型；
    所述终端的切换源小区的小区标识和目标小区的小区标识；
    所述终端连接失败后网络侧选择重新恢复连接的小区标识；
    所述终端连接失败后重新恢复连接成功或失败标识；
    所述终端的无线链路失败报告。
  13. 如权利要求12所述的方法，其中，所述第一网络设备为基站，所述第二网络设备为核心网设备；或者
    所述第一网络设备为第一基站，所述第二网络设备为第二基站；或者
    所述第一网络设备为分布式基站中的分布单元DU，所述第二网络设备为分布式基站中的集中单元CU。
  14. 如权利要求11所述的方法，其中，所述小区标识为小区全球标识CGI，或者所述小区标识包括物理小区标识PCI和频点。
  15. 一种无线通信链路失败处理装置，其中，包括：
    获取模块，被配置为获取失败信息，所述失败信息为所述终端与小区组连接失败相关的信息；
    发送模块，被配置为向网络设备发送小区组失败信息消息，所述小区组失败信息消息包括所述失败信息，所述失败信息用于辅助所述终端与所述小区组恢复连接，和/或确定所述终端与所述小区组的连接失败原因；
    其中，若所述小区组为主小区组MCG，则所述小区组失败信息消息为MCG失败信息消息，若所述小区组为辅小区组SCG，则所述小区组失败信息消息为SCG失败信息消息。
  16. 如权利要求15所述的装置，其中，所述获取模块具体被配置为执行：
    在主小区组中主小区的带宽部分BWP上连续进行上行LBT侦听，若发生失败，则获取失败信息，所述失败信息包括共享频谱资源中的测量对象对应的RSSI测量结果；或者
    在辅小区组中主小区的BWP上连续进行上行LBT侦听，若发生失败，则获取失败信息，所述失败信息包括共享频谱资源中的测量对象对应的RSSI测量结果。
  17. 如权利要求15所述的装置，其中，所述获取模块具体被配置为执行：
    若所述终端与主小区组中主小区连接断开或者与辅小区组中的主小区的连接断开，则所述终端获取失败信息，所述失败信息包括所述终端生成的报告或所述报告中的部分信息。
  18. 如权利要求17所述的装置，其中，所述终端生成的报告包括以下至少一项：无线链路失败报告、随机接入报告、连接建立失败报告。
  19. 如权利要求18所述的装置，其中，所述无线链路失败报告包括以下至少一项：网络侧选择重新恢复连接的小区标识、重新恢复连接是否成功的标识。
  20. 如权利要求18或19所述的装置，其中，所述小区标识为小区全球标识CGI，或者所述小区标识包括物理小区标识PCI和频点。
  21. 一种无线通信链路失败处理装置，其中，包括：
    接收模块，被配置为接收终端发送的小区组失败信息消息，所述小区组失败信息消息中包括失败信息，所述失败信息为所述终端与小区组连接失败相关的信息；
    处理模块，被配置为根据所述失败信息，恢复所述终端与所述小区组的连接，和/或确定所述终端与所述小区组的连接失败原因；
    其中，若所述小区组为主小区组MCG，则所述小区组失败信息消息为MCG失败信息消息，若所述小区组为辅小区组SCG，则所述小区组失败信息消息为SCG失败信息消息。
  22. 一种通信装置，其中，包括：处理器、存储器；
    所述存储器，存储计算机指令；
    所述处理器，用于读取所述计算机指令，被配置为执行：
    获取失败信息，所述失败信息为终端与小区组连接失败相关的信息；
    向网络设备发送小区组失败信息消息，所述小区组失败信息消息包括所述失败信息，所述失败信息用于辅助所述终端与所述小区组恢复连接，和/或确定所述终端与所述小区组的连接失败原因；
    其中，若所述小区组为主小区组MCG，则所述小区组失败信息消息为MCG失败信息消息，若所述小区组为辅小区组SCG，则所述小区组失败信息消息为SCG失败信息消息。
  23. 如权利要求22所述的通信装置，其中，所述处理器具体被配置为执行：
    在主小区组中主小区的带宽部分BWP上连续进行上行LBT侦听，若发生失败，则获取失败信息，所述失败信息包括共享频谱资源中的测量对象对应的RSSI测量结果；或者
    在辅小区组中主小区的BWP上连续进行上行LBT侦听，若发生失败，则获取失败信息，所述失败信息包括共享频谱资源中的测量对象对应的RSSI测量结果。
  24. 如权利要求22所述的通信装置，其中，所述处理器具体被配置为执行：
    若所述终端与主小区组中主小区连接断开或者与辅小区组中的主小区的连接断开，则所述终端获取失败信息，所述失败信息包括所述终端生成的报告或所述报告中的部分信息。
  25. 如权利要求24所述的通信装置，其中，所述终端生成的报告包括以下至少一项：无线链路失败报告、随机接入报告、连接建立失败报告。
  26. 如权利要求25所述的通信装置，其中，所述无线链路失败报告包括以下至少一项：网络侧选择重新恢复连接的小区标识、重新恢复连接是否成功的标识。
  27. 如权利要求25或26所述的通信装置，其中，所述小区标识为小区全球标识CGI，或者所述小区标识包括物理小区标识PCI和频点。
  28. 一种通信装置，其中，包括：处理器、存储器；
    所述存储器，存储计算机指令；
    所述处理器，用于读取所述计算机指令，执行如权利要求7-14任一项所述的方法。
  29. 一种计算机可读存储介质，其中，所述计算机可读存储介质存储有计算机可执行指令，所述计算机可执行指令用于使计算机执行如权利要求1-6或7-14任一项所述的方法。
  30. 一种计算机程序产品，其中，所述计算机程序产品在被计算机调用时，使得所述计算机执行如权利要求1-6或7-14任一项所述的方法。
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