WO2018202165A1 - 一种失败处理方法、切换方法及终端设备、网络设备 - Google Patents

一种失败处理方法、切换方法及终端设备、网络设备 Download PDF

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Publication number
WO2018202165A1
WO2018202165A1 PCT/CN2018/085710 CN2018085710W WO2018202165A1 WO 2018202165 A1 WO2018202165 A1 WO 2018202165A1 CN 2018085710 W CN2018085710 W CN 2018085710W WO 2018202165 A1 WO2018202165 A1 WO 2018202165A1
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WO
WIPO (PCT)
Prior art keywords
network device
terminal device
unit
primary network
indication information
Prior art date
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PCT/CN2018/085710
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English (en)
French (fr)
Inventor
彭文杰
郭轶
戴明增
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to JP2019550751A priority Critical patent/JP6852184B2/ja
Priority to EP23155569.9A priority patent/EP4221446A1/en
Priority to EP18794482.2A priority patent/EP3592099B1/en
Priority to CA3056692A priority patent/CA3056692C/en
Priority to RU2019134196A priority patent/RU2762387C2/ru
Priority to KR1020197028670A priority patent/KR102342278B1/ko
Priority to KR1020217005458A priority patent/KR102404125B1/ko
Priority to BR112019022490-4A priority patent/BR112019022490A2/pt
Publication of WO2018202165A1 publication Critical patent/WO2018202165A1/zh
Priority to US16/573,465 priority patent/US11477709B2/en
Priority to US17/942,937 priority patent/US20230007548A1/en

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    • 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
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • 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
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
    • 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
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • 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
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/249—Reselection being triggered by specific parameters according to timing information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/25—Maintenance of established connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a failure processing method, a handover method, a terminal device, and a network device in a wireless communication system.
  • a terminal device is connected to a primary network device and at least one secondary network device (in the figure, a secondary network device is taken as an example), and the primary network device and the at least one secondary network device are The core network is connected, wherein the standard of the primary network device and the secondary network device may be the same or different.
  • LTE Long Term Evolution
  • NR New Radio
  • One is a new wireless (English: New Radio, NR for short) base station.
  • RRC Radio Resource Control
  • the present application provides a failure processing method, a handover method, and a terminal device and a network device, which are used to provide a manner in which a terminal receives an RRC configuration of a secondary network device and fails to feedback RRC configuration.
  • the application provides a failure processing method, including:
  • the terminal device sends the first indication information to the primary network device, where the first indication information is used to indicate that the first RRC configuration fails.
  • the terminal device directly receives the first RRC configuration of the secondary network device from the secondary network device.
  • the terminal device sends the first indication information to the primary network device, where the first RRC configuration fails.
  • the terminal device can receive the RRC configuration directly from the secondary network device, and the speed is faster.
  • the terminal reports a first indication information to the primary network device, indicating the first RRC configuration. The failure may be performed, so that the primary network device may clarify that the first RRC configuration fails according to the received first indication information, and may trigger subsequent operations.
  • the terminal device sends the first indication information to the primary network device, where the terminal device sends the first message to the primary network device, where the first message includes the first indication information.
  • the first message is an RRC connection re-establishment message.
  • the sending, by the terminal device, the first indication information to the primary network device if the first unit of the terminal device receives the second indication information sent by the second unit of the terminal device, the terminal device Sending, to the primary network device, the first indication information, where the second indication information is used to indicate that the first RRC configuration is received from the secondary network device, and the first unit is used to control the primary An RRC connection between the network device and the terminal device, where the second unit is configured to control an RRC connection between the secondary network device and the terminal device.
  • the first unit is a first RRC entity
  • the second unit is a second RRC entity.
  • the new RRC configuration that the terminal device receives from the secondary network device is not limited
  • the embodiment of the present application provides a terminal device, which can perform any of the methods provided by implementing the foregoing first aspect.
  • the terminal device has a function of implementing the behavior of the terminal device in any of the foregoing methods, and the function may be implemented by hardware or by executing corresponding software by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the terminal device may be a user equipment, where the terminal device may be configured to receive the first RRC configuration of the secondary network device directly from the secondary network device, and when the first RRC configuration fails, the terminal device sends the first to the primary network device.
  • the indication information is used to indicate that the first RRC configuration fails.
  • the terminal device can receive the RRC configuration directly from the secondary network device, and thus the speed is faster.
  • the terminal sends the primary network device to the primary network device.
  • a first indication information is reported, indicating that the first RRC configuration fails, and thus the primary network device may be configured to determine that the first RRC configuration fails according to the received first indication information, and may trigger subsequent operations.
  • the structure of the terminal device includes a processor and a transceiver, the processor being configured to support the terminal device to perform a corresponding function in any of the methods of the above first aspect, such as generating, receiving or processing the above Data and/or information involved in the method.
  • the transceiver is configured to support communication between the terminal device and other entities, and to transmit or receive from other entities information or instructions involved in any of the methods of the first aspect described above.
  • a memory may also be included in the terminal device for coupling with the processor, which stores program instructions and data necessary for the terminal device.
  • the application provides a failure processing method, including:
  • the terminal device sends a second message to the primary network device, where the second message is used to request an RRC connection re-establishment.
  • the terminal device receives the second RRC configuration of the secondary network device from the primary network device.
  • the terminal device sends a second message to the primary network device, requesting the RRC connection re-establishment, and determining that the terminal device can Request for the correct RRC configuration.
  • the second message includes third indication information, where the third indication information is used to indicate that the second RRC configuration fails.
  • the terminal device sends a second message to the primary network device, including: if the first unit of the terminal device receives the second unit of the terminal device, The fourth indication information, the terminal device sends the second message to the primary network device, where the fourth indication information is used to indicate that the second RRC configuration received from the primary network device fails,
  • the first unit is configured to control an RRC connection between the primary network device and the terminal device
  • the second unit is configured to control an RRC connection between the secondary network device and the terminal device.
  • the first unit is a first RRC entity
  • the second unit is a second RRC entity.
  • the terminal device receives a third RRC configuration of the primary network device from the primary network device; if the third RRC configuration fails, the terminal device performs at least one of the following actions: stopping execution The second RRC configuration, releasing the second RRC configuration, and suspending the radio bearer under the secondary network device.
  • the embodiment of the present application provides a terminal device, which can perform any of the methods provided by implementing the foregoing third aspect.
  • the terminal device has a function of implementing the behavior of the terminal device in any one of the foregoing methods, and the function may be implemented by using hardware or by executing corresponding software by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the terminal device may be a user equipment, where the terminal device may be used by the terminal device to receive the second RRC configuration of the secondary network device from the primary network device, and when the second RRC configuration fails, the terminal device sends the first RRC configuration to the primary network device.
  • the second message is used to request the RRC connection re-establishment, and determines that the terminal device can request the correct RRC configuration.
  • the structure of the terminal device includes a processor and a transceiver, the processor being configured to support the terminal device to perform a corresponding function in any of the methods of the above third aspect, such as generating, receiving or processing the above Data and/or information involved in the method.
  • the transceiver is for supporting communication between the terminal device and other entities, and transmitting or receiving information or instructions involved in any of the methods of the third aspect to other entities.
  • a memory may also be included in the terminal device for coupling with the processor, which stores program instructions and data necessary for the terminal device.
  • the application provides a failure processing method, including:
  • the primary network device receives the first indication information from the terminal device, where the first indication information is used to indicate that the first RRC configuration of the secondary network device fails, and the first RRC configuration is received by the terminal device from the secondary network device;
  • the primary network device sends a first request message to the secondary network device, where the first request message is used to request the secondary network device to update an RRC configuration or request to release the secondary network device.
  • the first request message includes the first indication information.
  • the embodiment of the present application provides a network device, which can perform any of the methods provided by implementing the foregoing fifth aspect.
  • the network device has a function of implementing the behavior of the primary network device in any one of the foregoing fifth aspects, and the function may be implemented by using hardware or by executing corresponding software by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the network device may be a base station, a transmission point, or the like, where the network device is configured to receive the first indication information from the terminal device, where the first indication information is used to indicate that the first RRC configuration of the secondary network device fails; The primary network device sends a first request message to the secondary network device, where the first request message is used to request the secondary network device to update the RRC configuration or request to release the secondary network device.
  • the structure of the network device includes a processor and a transceiver, the processor being configured to support the network device to perform a corresponding function in any of the methods of the above fifth aspect, such as generating, receiving or processing the above Data and/or information involved in the method.
  • the transceiver is for supporting communication between a network device and other entities, and transmitting or receiving information or instructions involved in any of the methods of the fifth aspect to other entities.
  • the network device can also include a memory for coupling with the processor that holds program instructions and data necessary for the network device.
  • the application provides a failure processing method, including:
  • the primary network device receives the second message from the terminal device, the second message is used to indicate the RRC connection re-establishment, and the second RRC configuration is used by the terminal device from the primary device.
  • the primary network device sends a sixth message to the terminal device, where the sixth message is used to reconstruct a signaling radio bearer (English: Signaling Radio bearer, SRB for short).
  • a signaling radio bearer English: Signaling Radio bearer, SRB for short.
  • the second message includes third indication information, where the indication information is used to indicate that the second RRC configuration fails.
  • the embodiment of the present application provides a network device, and any method that implements the foregoing seventh aspect may be implemented.
  • the network device has a function of implementing the behavior of the primary network device in any of the foregoing seventh aspects, and the function may be implemented by hardware or by executing corresponding software by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the network device may be a base station, a transmission point, or the like, where the network device may be used to: if the second RRC configuration of the secondary network device fails, the primary network device receives the second message from the terminal device, where the second message is used. Instructing the RRC connection to be re-established; the primary network device sends a sixth message to the terminal device, where the sixth message is used to reconstruct the SRB.
  • the structure of the network device includes a processor and a transceiver, the processor being configured to support the network device to perform a corresponding function in any of the methods of the above seventh aspect, such as generating, receiving or processing the above Data and/or information involved in the method.
  • the transceiver is for supporting communication between a network device and other entities, and transmitting or receiving information or instructions involved in any of the methods of the seventh aspect to other entities.
  • the network device can also include a memory for coupling with the processor that holds program instructions and data necessary for the network device.
  • the application provides a handover method, including:
  • the first primary network device sends a third message to the second primary network device, where the third message is used to request a handover, and the third message includes a capability negotiation between the first primary network device and the secondary network device result;
  • the first primary network device receives the configuration of the second primary network device that is sent by the second primary network device, and the configuration of the second primary network device is associated with the capability negotiation result.
  • the first primary network device directly sends the capability negotiation result between the first primary network device and the secondary network device to the second primary network device, so that the second primary network device generates the configuration based on the capability negotiation result, without acquiring and understanding.
  • the configuration of the secondary network device ensures that the second primary network device can successfully generate the configuration during the handover process.
  • the capability negotiation result includes a Layer 2 cache size available to the first primary network device and/or a frequency band combination available to the first primary network device.
  • the first primary network device receives a configuration of the secondary network device
  • the first primary network device sends the configuration of the second primary network device and the configuration of the secondary network device to the terminal device.
  • the receiving, by the first primary network device, the configuration of the secondary network device includes: receiving, by the first primary network device, a configuration of the secondary network device from the second primary network device.
  • the first primary network device receives a fourth message from the terminal device, where the fourth message is used to indicate an RRC connection re-establishment.
  • the embodiment of the present application provides a network device, which can perform any of the methods provided by implementing the foregoing ninth aspect.
  • the network device has a function of implementing the behavior of the first primary network device in any one of the foregoing ninth aspects, and the function may be implemented by using hardware or by executing corresponding software by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the network device may be a base station, a transmission point, or the like, where the network device may be used to directly send a capability negotiation result between the first primary network device and the secondary network device to the second primary network device, so that the second primary The network device generates a configuration based on the capability negotiation result, and does not need to acquire and understand the configuration of the secondary network device, and can ensure that the second primary network device can successfully generate the configuration during the handover process.
  • the structure of the network device includes a processor and a transceiver, the processor being configured to support the network device to perform a corresponding function in any of the methods of the above ninth aspect, such as generating, receiving or processing the above Data and/or information involved in the method.
  • the transceiver is for supporting communication between a network device and other entities, and transmitting or receiving information or instructions involved in any of the methods of the above ninth aspect to other entities.
  • the network device can also include a memory for coupling with the processor that holds the program instructions and data necessary for the network device.
  • the embodiment of the present application provides a communication device, including a first unit and a second unit;
  • the second unit determines that the first RRC configuration of the secondary network device that is received by the terminal device from the secondary network device fails, the second indication information is generated, where the second indication information is used to indicate that the first RRC configuration fails. ;
  • the first unit is configured to control an RRC connection between the primary network device and the terminal device
  • the second unit is configured to control an RRC connection between the secondary network device and the terminal device.
  • the first unit is a first RRC entity
  • the second unit is a second RRC entity.
  • the embodiment of the present application provides a communication device, including a first unit and a second unit;
  • the fourth indication information is generated, where the fourth indication information is used to indicate that the second RRC configuration fails.
  • the first unit is configured to control an RRC connection between the primary network device and the terminal device
  • the second unit is configured to control an RRC connection between the secondary network device and the terminal device.
  • the first unit is a first RRC entity
  • the second unit is a second RRC entity.
  • the embodiment of the present application provides a communication device, including a first unit and a second unit;
  • the fifth indication information is generated, where the fifth indication information is used for the third RRC configuration failure
  • the first unit is configured to control an RRC connection between the primary network device and the terminal device
  • the second unit is configured to control an RRC connection between the secondary network device and the terminal device.
  • the first unit is a first RRC entity
  • the second unit is a second RRC entity.
  • the embodiment of the present application provides a communication device, including a first unit and a second unit;
  • the second unit sends a failure indication information to the first unit, where the failure indication is used to indicate that the link between the terminal device and the secondary network device fails; the first unit receives the failure indication information;
  • the first unit is configured to control an RRC connection between the primary network device and the terminal device
  • the second unit is configured to control an RRC connection between the secondary network device and the terminal device.
  • the failure indication information is specifically used to indicate any one of the following: a timer expires, the number of retransmissions exceeds a maximum number of times, a random access failure, a secondary cell group change failure, a key failure, a verification failure, and a complete
  • the sexual protection fails, the secondary network configuration received from the secondary network device fails, and the secondary network configuration received from the primary network fails.
  • the first unit is a first RRC entity
  • the second unit is a second RRC entity.
  • the communication device in the above tenth to fourteenth aspects may be, for example, a terminal device, or a baseband chip or the like.
  • the embodiment of the present application provides a computer storage medium for storing computer software instructions used by the terminal device provided in the foregoing second aspect, which includes a program designed to execute the foregoing first aspect;
  • the embodiment of the present application provides a computer storage medium for storing computer software instructions used by the terminal device provided in the sixth aspect, which includes a program designed to execute the foregoing fifth aspect; Or a computer software instruction for storing the network device provided in the above eighth aspect, comprising: a program designed to perform the seventh aspect described above; or for storing the terminal device provided in the above tenth aspect Computer software instructions for use, comprising programs for performing the ninth aspect described above.
  • the present application further provides a computer program product comprising instructions, when executed on a computer, causing a computer to perform the method of the above first or third aspect, the computer program product comprising a computer
  • the instructions are stored in a computer readable storage medium.
  • the processor of the terminal device can read the computer execution instruction from the computer readable storage medium; the processor executes the computer to execute the instruction, so that the terminal device performs the steps performed by the terminal device in the foregoing method provided by the embodiment of the present application, or causes the terminal to The device deploys the functional unit corresponding to this step.
  • the present application further provides a computer program product comprising instructions, when executed on a computer, causing a computer to perform the method of the above fifth aspect or seventh aspect, the computer program product comprising computer execution
  • the instructions are stored in a computer readable storage medium.
  • the processor of the network device can read the computer execution instructions from the computer readable storage medium; the processor executes the computer to execute the instructions, so that the network device performs the steps performed by the primary network device in the foregoing method provided by the embodiments of the present application, or The network device deploys the functional unit corresponding to this step.
  • the present application further provides a computer program product comprising instructions, when executed on a computer, causing a computer to perform the method of the above ninth aspect, the computer program product comprising computer execution instructions, the computer
  • the execution instructions are stored in a computer readable storage medium.
  • the processor of the network device can read the computer execution instructions from the computer readable storage medium; the processor executes the computer to execute the instructions, so that the network device performs the steps performed by the first primary network device in the foregoing method provided by the embodiments of the present application, Or causing the network device to deploy a functional unit corresponding to the step.
  • the present application further provides a chip system, including a processor, for supporting a terminal device to implement the functions involved in the foregoing aspects, for example, generating, receiving, or processing the method involved in the foregoing method. Data and / or information.
  • the chip system further comprises a memory for storing necessary program instructions and data of the terminal device.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • the present application further provides a chip system, including a processor, for supporting a network device to implement the functions involved in the foregoing aspects, for example, generating, receiving, or processing the method involved in the foregoing method Data and / or information.
  • the chip system further includes a memory for storing necessary program instructions and data of the network device.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • Figure 1 is a schematic diagram of multiple connections provided by the present application.
  • FIG. 2(b) is another network structure diagram provided by the present application.
  • FIG. 3(a) is a flowchart of a failure processing method provided by the present application.
  • FIG. 3(b) is a flowchart of another failure processing method provided by the present application.
  • FIG. 5 is a schematic structural diagram of a network device provided by the present application.
  • FIG. 6(a) is a schematic structural diagram of a terminal device provided by the present application.
  • FIG. 6(b) is a schematic structural diagram of a terminal device provided by the present application.
  • Figure 7 is a schematic structural view of a device provided by the present application.
  • FIG. 8 is a schematic structural diagram of a terminal device provided by the present application.
  • FIG. 9 is a schematic structural diagram of a network device provided by the present application.
  • FIG. 10 is a schematic structural diagram of a communication device provided by the present application.
  • the network architecture and the service scenario described in the embodiments of the present application are for the purpose of more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation of the technical solutions provided by the embodiments of the present application.
  • the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.
  • the present application can be applied to existing cellular communication systems, such as Global System for Mobile Communication (GSM), Wideband Code Division Multiple Access (WCDMA), and long-term In the system of evolution (English: Long Term Evolution, LTE for short), it is applicable to the fifth generation mobile communication system (English: 5rd-Generation, 5G for short), such as adopting new wireless (English: New Radio, referred to as: NR)
  • the access network, the cloud radio access network (English: Cloud Radio Access Network, CRAN for short) and the LTE access network connected to the 5G core network can also be extended to similar wireless communication systems, such as Wireless fidelity (English: WIreless-Fidelity, referred to as wifi), Worldwide Interoperability for Microwave Access (WiMAX), and 3rd Generation Partnership Project (English: 3rd Generation Partnership Project) : 3GPP)
  • Other related cellular systems but also applicable to other orthogonal frequency division multiplexing (English: Orthogonal Frequency Division Multiplexing (OFDM) access technology wireless communication system
  • the network architecture and the service scenario described in this application are for the purpose of more clearly explaining the technical solutions of the present application, and do not constitute a limitation on the technical solutions provided by the present application. Those skilled in the art may know that with the evolution of the network architecture and new services. The appearance of the scenario, the technical solution provided by the present application is equally applicable to similar technical problems.
  • Terminal Equipment also known as User Equipment (English: User Equipment, UE for short), or Terminal (Terminal), is a device that provides voice and/or data connectivity to users.
  • a handheld device having a wireless connection function or a wireless communication function, an in-vehicle device, a wearable device, a computing device, a control device, or other processing device connected to a wireless modem, and various forms of mobile stations (English: Mobile station , referred to as: MS) and so on.
  • Common terminal devices include: mobile phones, tablets, notebooks, handheld computers, mobile internet devices (English: mobile internet device, MID for short), wearable devices such as smart watches, smart phones. Ring, pedometer, etc.
  • the above-mentioned devices are collectively referred to as terminal devices.
  • the network device for example, may be a base station, is a device that connects the terminal device to the wireless network, including but not limited to: an evolved Node B (English: evolved Node B, eNB for short), a radio network controller (English: radio network controller, abbreviation: RNC), Node B (English: Node B, NB for short), Base Station Controller (English: Base Station Controller, BSC for short), Base Transceiver Station (English: Base Transceiver Station, Abbreviation: BTS), home base station (for example, Home evolved NodeB, or Home Node B, HNB for short), baseband unit (English: BaseBand Unit, BBU for short), new air interface base station (English: g NodeB, abbreviation: gNB) Transmission point (English: Transmitting and receiving point, TRP for short), transmission point (English: Transmitting point, TP for short), mobile switching center, etc.
  • RNC radio network controller
  • Node B English: Node B, NB for short
  • the device that directly communicates with the terminal device through the wireless channel is usually a base station, and the base station may include various forms of a macro base station, a micro base station, a relay station, an access point, or a radio remote unit (English: Remote Radio Unit, referred to as: RRU), etc., of course, the wireless communication with the terminal device may also be other network devices having wireless communication functions, which is not limited in this application.
  • the name of a device with a base station function may be different, for example, in an LTE network, called an evolved NodeB (eNB or eNodeB), in the 3rd Generation (3G) In the network, it is called Node B and so on.
  • eNB evolved NodeB
  • 3G 3rd Generation
  • a network structure diagram is provided in the present application, where a terminal device can interact with a primary network device and at least one secondary network device (one in the figure as an example), and the terminal device includes a unit and a second unit, where the first unit may be a first RRC entity or a first RRC functional unit or a first RRC unit, configured to control an RRC connection between the primary network device and the terminal device, and the second unit may be a second The RRC entity or the second RRC function unit or the second RRC unit is configured to control an RRC connection between the secondary network device and the terminal device.
  • the core network is an Evolved Packet Core (EPC)
  • the primary network device is an LTE base station (such as an eNB).
  • the control plane and the user plane connection can be established between the EPC and the EPC.
  • the device is an NR base station (such as gNB), and only a user plane connection can be established with the EPC.
  • the first unit is an LTE RRC entity, which is responsible for managing LTE radio resources
  • the second unit is an NR RRC entity, which is responsible for managing NR radio resources.
  • an S1 interface can be used between the core network and the primary network device.
  • an S1 interface can be used between the core network and the secondary network device.
  • an X2 interface can be used between the primary network device and the secondary network device.
  • the core network is the next generation core network (English: Next Generation Core, referred to as: NGC), or 5G core network (English: 5G Core Network, referred to as: 5G-CN), or 5G core network (English: 5G Core, Abbreviation: 5GC).
  • NGC Next Generation Core
  • 5G-CN 5G Core Network
  • 5G core network Fifth Generation Core, Abbreviation: 5GC
  • the primary network device is an LTE base station (such as an eNB), and a control plane and a user plane connection can be established between the NGC and the NGC
  • the secondary network device is an NR base station (such as a gNB), and only a user plane connection can be established with the NGC.
  • One unit is an LTE RRC entity, which is responsible for LTE radio resources
  • the second unit is an NR RRC entity, which is responsible for management of NR radio resources, and, for example, a next generation between the core network and the main network device (English: Next Generation, referred to as:
  • an NG interface may be used between the core network and the secondary network device
  • an Xn interface ie, a next-generation interface
  • the core network is NGC, or 5G-CN, or 5GC.
  • the core network is NGC as an example.
  • the primary network device is an NR base station (such as a gNB), and a control plane and a user plane connection can be established between the NGC and the NGC
  • the secondary network device is an LTE base station (such as an eNB), and only a user plane connection can be established with the NGC.
  • the first unit is an NR RRC entity, which is responsible for NR radio resources
  • the second unit is an LTE RRC entity, which is responsible for management of LTE radio resources, and, for example, an NG interface, a core network, and a secondary network device between the core network and the main network device.
  • an NG interface can be used
  • an Xn interface ie, a next-generation interface
  • the core network may also be other core networks.
  • the primary network device may be other network devices, such as various types of network devices mentioned above, and the secondary network devices may also be other network devices, such as various types mentioned above. Internet equipment.
  • the primary network device and the secondary network device may be the same or different.
  • the primary network device is an LTE base station
  • the secondary network device is an NR base station.
  • the primary network device is an NR base station
  • the secondary network device is an LTE base station, and, for convenience of description, in the present application, the first unit has the same standard as the primary network device, and the second unit has the same standard as the secondary network device.
  • the first unit is responsible for management of NR radio resources, such as an NR RRC entity
  • the second unit is responsible for management of LTE radio resources, such as an LTE RRC entity
  • the first unit is responsible for management of LTE radio resources, for example, an LTE RRC entity
  • the second unit is responsible for management of NR radio resources, for example, an NR RRC entity.
  • the terminal device can obtain wireless resources from the air interface of the primary network device and the secondary network device for data transmission at the same time, and obtain a gain of the transmission rate.
  • the first unit and the second unit are responsible for the configuration of the respective systems, and do not understand each other's configurations.
  • the primary network device and the secondary network device are independent of each other. From the network side, both the primary network device and the secondary network device have RRC to generate a complete RRC message, which is generated by the secondary network device for the scenario shown in FIG. 2(a).
  • the RRC message (which carries the RRC configuration of the secondary network device) is sent to the primary network device, and the primary network device sends the RRC message of the secondary network device as a container to the terminal device in the RRC message of the primary network device, that is,
  • the terminal device receives an RRC message of the primary network device from the primary network device, where the RRC message includes an RRC configuration of the primary network device and an RRC configuration of the secondary network device, where the RRC configuration of the secondary network device in the RRC message of the primary network device is
  • the RRC message sent by the secondary network device through the secondary network device is sent to the primary network device.
  • the present application is also referred to as a joint configuration, that is, the secondary network device sends the RRC configuration of the secondary network device to the primary network device, and the primary network device sends the RRC configuration of the secondary network device.
  • the primary network device may also send the RRC configuration of the primary network device to the terminal device, that is, in the joint configuration scenario, the RRC configuration of the secondary network device needs to be sent to the terminal device through the primary network device.
  • FIG. 2(b) another network structure diagram provided by the present application, in which the core network, the primary network device, the secondary network device, the type of the first unit, the second unit, and the relationship are related to FIG. 2 (a)
  • the type and relationship of the core network, the primary network device, the secondary network device, the first unit, and the second unit are the same.
  • the main difference between FIG. 2(b) and FIG. 2(a) is: In FIG.
  • the secondary network device can directly send an RRC message to the terminal device, where the RRC configuration of the secondary network device is carried, and the primary network device sends an RRC message to the terminal device, where the RRC configuration of the primary network device is carried, and therefore,
  • the RRC configuration mode shown in FIG. 2(b) is also referred to as an independent configuration. That is, the RRC configuration of the primary network device and the RRC configuration of the secondary network device are separately transmitted by the primary network device and the secondary network device to the terminal device.
  • FIG. 3( a ) a flowchart of a failure processing method provided by the present application, which corresponds to the scenario shown in FIG. 2( a ), that is, a joint configuration scenario, specifically includes the following steps:
  • Step 101 The primary network device sends a second RRC configuration of the secondary network device to the terminal device.
  • the RRC configuration refers to the configuration information generated by the RRC entity of the network device, and is configured to configure the terminal device, for example, the RRC configuration includes configuration of each protocol layer, including but not limited to the packet data convergence protocol configuration (English: Packet Data) Convergence Protocol (PDCP), Radio Link Control (RLC) configuration, Media Intervention Control (MAC) configuration, physical layer configuration, etc.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Media Intervention Control
  • physical layer configuration etc.
  • the secondary network device sends the second RRC configuration of the secondary network device to the primary network device in the RRC message of the secondary network device, and after receiving the RRC message of the secondary network device, the primary network device sends the RRC message of the secondary network device.
  • the RRC message carried in the primary network device is configured to be sent to the terminal device.
  • the RRC message of the primary network device further carries the third RRC configuration of the primary network device.
  • Step 102 The terminal device receives a second RRC configuration of the secondary network device from the primary network device.
  • Step 103 If the second RRC configuration fails, the terminal device sends a second message to the primary network device.
  • the second message is used to request an RRC connection re-establishment.
  • the second message is an RRC connection re-establishment message.
  • the second message includes third indication information, where the indication information is used to indicate that the second RRC configuration fails.
  • the second unit of the terminal device determines that the second RRC configuration of the secondary network device received by the terminal device from the primary network device fails, generating fourth indication information
  • the fourth indication information is used to indicate that the second RRC configuration fails.
  • the second unit sends the fourth indication information to the first unit, if the first unit receives the location sent by the second unit.
  • the terminal device sends the second message to the primary network device.
  • the second unit may be a second RRC entity of the terminal device.
  • the second unit of the terminal device determines that the second RRC configuration of the secondary network device received by the terminal device from the primary network device is successful, generating a seventh indication Information, the seventh indication information is used to indicate that the second RRC configuration is successful; then, the second unit sends the seventh indication information to the first unit, if the first unit receives the second unit, And the seventh indication information, the terminal device sends a fifth message to the primary network device, where the fifth message is used to indicate that the second RRC configuration is successful.
  • the second unit may be a second RRC entity of the terminal device.
  • Step 104 The primary network device receives the second message from the terminal device.
  • Step 105 The primary network device sends a sixth message to the terminal device, where the sixth message is used to reconstruct the SRB.
  • the terminal device receives the second RRC configuration of the secondary network device from the primary network device, and when the terminal device determines that the second RRC configuration fails, specifically, the second unit determines the second RRC by the second device of the terminal device. If the configuration fails, and the fourth indication information is sent to the first unit, the terminal device sends a second message to the primary network device for requesting the RRC connection re-establishment, and after receiving the second message, the primary network device sends an RRC connection re-establishment.
  • the method further includes:
  • the terminal device Receiving, by the terminal device, the third RRC configuration of the primary network device from the primary network device; if the third RRC configuration fails, the terminal device performs at least one of the following actions: stopping performing the second RRC configuration, releasing The second RRC configures and suspends a radio bearer under the secondary network device.
  • the terminal device performs at least one of the following actions, including: if the second unit receives the fifth indication information sent by the first unit, the terminal device performs at least one of the following actions, The fifth indication information is used for the third RRC configuration failure.
  • the terminal device when the terminal device further receives the third RRC configuration of the primary network device from the primary network device, and the third RRC configuration fails, the first unit sends fifth indication information to the second unit, where the third RRC configuration is used. Failure, and the terminal device further stops performing the foregoing second RRC configuration, and/or releases the second RRC configuration, and/or suspends the radio bearer under the secondary network device.
  • the terminal device further needs to perform the following operations:
  • the terminal device sends a seventh message to the primary network device, where the seventh message is used to request an RRC connection re-establishment.
  • the seventh message includes seventh indication information, where the seventh indication information is used to indicate that the third RRC configuration of the primary network device that is received by the terminal device from the primary network device fails.
  • FIG. 3(b) a flowchart of another failure processing method provided by the present application, which corresponds to the scenario shown in FIG. 2(b), that is, an independent configuration scenario, specifically includes the following steps:
  • Step 201 The terminal device receives, from the secondary network device, a first RRC configuration of the secondary network device.
  • Step 202 The terminal device sends the first indication information to the primary network device.
  • the first indication information is used to indicate that the first RRC configuration fails.
  • the terminal device sends the first indication information to the primary network device, where the terminal device sends the first message to the primary network device, where the first message includes the first indication information.
  • the sending, by the terminal device, the first indication information to the primary network device includes: if the first unit of the terminal device receives the second indication information sent by the second unit of the terminal device, The terminal device sends the first indication information to the primary network device, where the second indication information is used to indicate that the first RRC configuration received from the secondary network device fails, that is, if the second unit determines the first If the RRC configuration fails, the second indication information is sent to the first unit. If the first unit receives the second indication information sent by the second unit, the terminal device sends the first indication information to the primary network device.
  • Step 203 The primary network device receives the first indication information from the terminal device.
  • Step 204 The primary network device sends a first request message to the secondary network device.
  • the first request message is used to request the secondary network device to update the RRC configuration or request to release the secondary network device.
  • the new RRC configuration is sent to the primary network device, and the primary network device sends the new RRC configuration to the terminal device, that is, the terminal device receives the new RRC configuration from the primary network device.
  • the RRC connection re-establishment process is performed between the primary network device and the user equipment at this time.
  • the new RRC configuration is directly sent to the terminal device, that is, the new RRC configuration that the terminal device receives from the secondary network device, where the terminal device directly receives the new RRC configuration from the secondary network device.
  • the RRC configuration is faster than the new RRC configuration that receives the secondary network device from the primary network device.
  • the first request message includes the first indication information.
  • step 204 can also be replaced with step 204a:
  • Step 204a The primary network device releases the secondary network device.
  • the primary network device After the primary network device releases the secondary network device, it can also re-access a new secondary network device.
  • the application may further understand the implementation methods shown in FIG. 3( a ) and FIG. 3 ( b ) as a whole, that is, the terminal device may receive the first RRC configuration of the secondary network device from the secondary network device.
  • the second RRC configuration of the secondary network device may also be received from the primary network device.
  • the second unit sends a failure indication information to the first unit, where the failure indication information indicates a specific cause of the link failure, for example, a failure indication information.
  • the timer is timed out, the number of retransmissions exceeds the maximum number, the random access fails, the secondary cell group fails to be changed, the key fails, the verification fails, the integrity protection fails, the secondary network configuration received from the secondary network device fails, or The secondary network configuration received from the primary network failed.
  • the timer may be started when the terminal device detects that a physical layer problem occurs in a primary cell under the secondary network device.
  • the number of retransmissions may be the number of retransmissions performed by the RLC layer, or the number of retransmissions occurring at other layers.
  • the random access failure may refer to a failure when the terminal device performs random access with a cell under the secondary network device.
  • the failure of the secondary cell group to change may be that the terminal device fails to change the secondary cell group, and the secondary cell group may be a cell group served by the secondary network device for the terminal device.
  • the failure of the key may be that the key of the terminal device and the secondary network device are inconsistent, and the terminal device cannot be properly encrypted and/or decrypted.
  • the verification failure may be that the terminal device fails to transmit when performing verification with the secondary network device.
  • the integrity protection failure may refer to failure of integrity protection between the terminal device and the secondary network device.
  • 3GPP TS 36.331, 3GPP TS 33.401 related content please refer to 3GPP TS 36.331, 3GPP TS 33.401 related content. The above description is only an example, but is not limited to the above description.
  • the failure indication information is used to indicate that the secondary network configuration received from the secondary network device fails
  • the failure indication information is the foregoing second indication information.
  • the failure indication information is used to indicate that the secondary network configuration received from the primary network fails
  • the failure indication information is the fourth indication information described above.
  • the failure indication information may be generated by the second unit when determining that the link between the terminal device and the secondary network device fails, or may be determined by the third unit of the terminal device to determine the terminal device and the secondary network.
  • the sixth indication information is generated, where the sixth indication information is used to indicate that the link between the terminal device and the secondary network device fails, and the third unit sends the sixth indication information to the second unit, After the second unit receives the sixth indication information, the failure indication information is generated; or the third unit may directly send the failure indication information after determining that the link between the terminal device and the secondary network device fails.
  • the failure indication information may be generated by the second unit when determining that the link between the terminal device and the secondary network device fails.
  • the third unit may be a second MAC entity or a second RLC entity or a second physical layer unit or an application layer entity of the terminal device, the second MAC entity, the second RLC entity, and the second The physical layer unit is the same as the secondary network device.
  • the terminal device After the first unit receives the failure indication information, if the failure indication information indicates that the timer expires, the terminal device sends indication information to the primary network device, where the indication information is used to indicate that the timer expires. After receiving the indication information, the primary network device does not perform RRC link re-establishment.
  • the terminal device After the first unit receives the failure indication information, if the failure indication information indicates that the number of retransmissions exceeds the maximum number of times, the terminal device sends indication information to the primary network device, where the indication information is used to indicate that the number of retransmissions exceeds The maximum number of times. After receiving the indication information, the primary network device does not perform RRC link re-establishment.
  • the terminal device After the first unit receives the failure indication information, if the failure indication information indicates that the random access fails, the terminal device sends the indication information to the primary network device, where the indication information is used to indicate that the random access fails. After receiving the indication information, the primary network device does not perform RRC link re-establishment.
  • the terminal device After the first unit receives the failure indication information, if the failure indication information indicates that the secondary cell group change fails, the terminal device sends indication information to the primary network device, where the indication information is used to indicate that the secondary cell group change fails. . After receiving the indication information, the primary network device does not perform RRC link re-establishment.
  • the terminal device After the first unit receives the failure indication information, if the failure indication information indicates that the key fails, the terminal device sends indication information to the primary network device, where the indication information is used to indicate that the key fails. After receiving the indication information, the primary network device does not perform RRC link re-establishment.
  • the terminal device After the first unit receives the failure indication information, if the failure indication information indicates that the verification fails, the terminal device sends indication information to the primary network device, where the indication information is used to indicate that the verification fails. After receiving the indication information, the primary network device does not perform RRC link re-establishment.
  • the terminal device After the first unit receives the failure indication information, if the failure indication information indicates that the integrity protection fails, the terminal device sends the indication information to the primary network device, where the first indication information is used to indicate that the integrity protection fails. After receiving the indication information, the primary network device does not perform RRC link re-establishment.
  • the terminal device After the first unit receives the failure indication information, if the failure indication information indicates that the secondary network configuration received from the secondary network device fails, the terminal device sends the first indication information to the primary network device, where the first indication is The information is used to indicate that the secondary network configuration received by the secondary network device fails (that is, the first RRC configuration fails as described above). After receiving the first indication information, the primary network device does not perform RRC link re-establishment.
  • the terminal device After the first unit receives the failure indication information, if the failure indication information indicates that the secondary network configuration received from the primary network fails, the terminal device sends a second message to the primary network device, where the second message is used. Request RRC connection re-establishment. The primary network device performs RRC link re-establishment after receiving the second message.
  • the second message further includes third indication information, where the third indication information is used to indicate that the secondary network configuration received from the primary network fails (ie, the second RRC configuration fails as described above).
  • each network element such as a terminal device (such as a UE), a network device (such as a base station), etc., in order to implement the above functions, includes hardware structures and/or software modules corresponding to the respective functions.
  • a terminal device such as a UE
  • a network device such as a base station
  • the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.
  • the handover process is: the first primary network.
  • the device sends the configuration of the secondary network device to the second primary network device, and after receiving the configuration of the secondary network device, the second primary network device can read and understand the configuration, so the configuration can be generated based on the configuration and the capabilities of the terminal device. And ensure that the final configuration does not exceed the capabilities of the terminal device.
  • the first primary network device and the second primary network device have the same standard and are different from the secondary network device.
  • the second primary network device cannot understand the secondary device.
  • the configuration of the network device therefore, cannot be switched from the first primary network device to the second primary network device in accordance with the above switching method.
  • the application also provides a switching method, as shown in FIG. 4, including the following steps:
  • Step 301 The first primary network device sends a third message to the second primary network device.
  • the third message is used to request a handover.
  • the third message is a handover request message, and the third message includes a capability negotiation result between the first primary network device and the secondary network device.
  • the capability negotiation result includes a Layer 2 cache size available to the first primary network device, and/or a frequency band combination available to the first primary network device.
  • the Layer 2 buffer refers to the Layer 2 buffer of the terminal device
  • the band combination refers to the band combination of the terminal device.
  • Step 302 The second primary network device generates a configuration of the second primary network device based on a capability negotiation result between the first primary network device and the secondary network device.
  • the configuration of the second primary network device is associated with the capability negotiation result.
  • the configuration is an RRC configuration.
  • Step 303 The second primary network device sends the configuration of the second primary network device to the first primary network device.
  • Step 304 The first primary network device receives a configuration of the second primary network device that is sent by the second primary network device.
  • the result of the capability negotiation between the first primary network device and the secondary network device is directly sent to the second primary network device by the first primary network device, so that the second primary network device generates the capability based on the capability negotiation result.
  • the configuration does not require obtaining and understanding the configuration of the secondary network device to ensure that the second primary network device can successfully generate the configuration during the handover process.
  • the first primary network device may further receive a configuration of the secondary network device; and, the first primary network device sends the configuration of the second primary network device and the configuration of the secondary network device to the terminal device.
  • the first primary network device receives the configuration of the secondary network device, where the first primary network device receives the configuration of the secondary network device from the second primary network device, or the first The primary network device receives the configuration of the secondary network device from the secondary network device.
  • the second primary network device sends the configuration of the second primary network device to the first primary network device, and optionally, the second primary network device also sends the configuration of the secondary network device to the first primary network device.
  • the secondary network device sends the configuration of the secondary network device to the first primary network device
  • the first primary network device optionally receives the secondary network device
  • the first primary network device sends the configuration of the second primary network device to the terminal device, and optionally sends the configuration of the secondary network device to the terminal device.
  • the terminal device sends a fourth message to the first primary network device, where the fourth device The message is used to indicate the RRC connection re-establishment.
  • the negotiation of the frequency band combination is taken as an example.
  • an optional solution is to maintain a list of frequency band combinations.
  • the first column is an index.
  • the second column is the frequency band combination that the first primary network device can use
  • the third column is the frequency band combination that the secondary network device can use when the first primary network device uses the frequency band combination of the second column.
  • the reason for this combination is that different frequency bands may use the same RF link of the terminal device, and the same RF chain cannot be used by both the first primary network device and the secondary network device.
  • the network side can obtain the information of the first device from the capability of the terminal device. Specifically, the first primary network device only needs to know the frequency band combination of the first primary network device corresponding to the index, and the secondary network device only needs to know the secondary network device corresponding to the index.
  • Band combination in the capability negotiation process, the first primary network device selects a group of frequency band combinations and sends the corresponding index to the secondary network device, so the secondary network device can know the frequency band combination that the secondary network device can use, thereby ensuring the final The configuration does not exceed the capabilities of the terminal device. For example, if the frequency band selected by the first primary network device is 1, 3, and 5, the first primary network device sends the index 4 to the secondary network device, and the secondary network device learns that the available frequency band combination is 2, 3, and 4. .
  • the available frequency band combinations are 1, 3, 5, and the frequency band combinations available to the first primary network device are transmitted to the second primary network device.
  • the first primary network device negotiates with the secondary network device, for example, the Layer 2 cache size available for the first primary network device is determined to be 600 M.
  • the Layer 2 cache size available for network devices is 400M.
  • the first primary network device After determining the Layer 2 cache size and the available frequency band combination available by the first primary network device, the first primary network device sends the Layer 2 cache size and the available frequency band combination available to the first primary network device to the second primary network device.
  • the second primary network device further generates a configuration, for example, generates an RRC configuration, and sends the configuration to the first primary network device, which is then sent by the first primary network device to the terminal device.
  • the secondary network device generates a configuration according to a Layer 2 cache size and an available frequency band combination available to the secondary network device, and sends the configuration to the second primary network device, where the second primary network device configures the secondary network device and the second primary device
  • the configuration of the network device is sent together to the first primary network device and sent by the first primary network device to the terminal device.
  • the embodiment of the present application further provides a network device 500.
  • the network device 500 is applicable to a method performed by a primary network device in performing the foregoing failure processing method, and the foregoing switching method.
  • the network device 500 includes one or more remote radio units (RRUs) 501 and one or more baseband units (BBUs) 502.
  • the RRU 501 may be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 5011 and a radio frequency unit 5012.
  • the RRU 501 portion is mainly used for transmitting and receiving radio frequency signals and converting radio frequency signals and baseband signals.
  • the BBU 502 part is mainly used for performing baseband processing, controlling network devices, and the like.
  • the RRU 501 and the BBU 502 may be physically disposed together or physically separated, that is, a distributed network device.
  • the BBU 502 is a control center of a network device, and may also be referred to as a processing unit, and is mainly used to perform baseband processing functions, such as channel coding, multiplexing, modulation, spreading, and the like.
  • the BBU processing unit
  • the BBU may be used to control the network device to perform the method performed by the primary network device in any of the foregoing failure processing methods, and the method performed by the first primary network device in the foregoing handover method.
  • the BBU 502 may be composed of one or more boards, and multiple boards may jointly support a single access standard radio access network (such as an LTE network), or may separately support different access modes of wireless. Access Network.
  • the BBU 502 also includes a memory 5021 and a processor 5022.
  • the memory 5021 is used to store necessary instructions and data.
  • the processor 5022 is configured to control a network device to perform necessary actions, such as for controlling a network device to perform the method performed by the network device in any of the embodiments described above.
  • the memory 5021 and the processor 5022 can serve one or more boards. That is, the memory and processor can be individually set on each board. It is also possible that multiple boards share the same memory and processor.
  • the necessary circuits are also provided on each board.
  • an uplink signal (including data, etc.) transmitted by the terminal device is received through the antenna 5011, and a downlink signal (including data and/or is transmitted to the terminal device through the antenna 5011 on the downlink.
  • control information in the processor 5022, processing service data and signaling messages according to radio access technologies adopted by the radio access network (for example, access technologies of LTE, NR, and other evolved systems) ) to handle.
  • the processor 5022 is further configured to perform control management on an action of the network device, and is used to perform processing performed by the network device in the foregoing embodiment.
  • the processor 5022 is further configured to support the network device to perform the processes involved in processing by the primary network device in FIG. 3(a), FIG. 3(b), and the method involved in the first primary network device in FIG.
  • Figure 5 only shows a simplified design of the network device.
  • the network device may include any number of antennas, memories, processors, radio units, RRUs, BBUs, etc., and all network devices that can implement the present application are within the scope of the present application.
  • the RRU 501 is referred to as a transceiver, and the transceiver and the processor in the network device 500 are specifically configured to perform:
  • a transceiver configured to receive, by the terminal device, the first indication information, where the first indication information is used to indicate that the first RRC configuration of the secondary network device fails, and the first RRC configuration is configured by the terminal device from the secondary network device receive;
  • the transceiver is further configured to send a first request message to the secondary network device, where the first request message is used to request the secondary network device to update an RRC configuration or request to release the secondary network device.
  • the first request message includes the first indication information.
  • the transceiver and processor in the network device 500 are also specifically configured to perform:
  • the transceiver is configured to receive a second message from the terminal device, where the second message is used to indicate RRC connection re-establishment, and the second RRC configuration is used by the terminal device Said that the primary network device receives;
  • the transceiver is further configured to initiate an RRC connection re-establishment to the terminal device.
  • the second message includes third indication information, where the indication information is used to indicate that the second RRC configuration fails.
  • the transceiver and processor in the network device 500 are also specifically configured to perform:
  • a transceiver configured to send a third message to the second primary network device, where the third message is used to request a handover, and the third message includes a capability negotiation between the first primary network device and the secondary network device result;
  • the transceiver is further configured to receive a configuration of the second primary network device that is sent by the second primary network device, where a configuration of the second primary network device is associated with the capability negotiation result.
  • the capability negotiation result includes a Layer 2 cache size available to the first primary network device and/or a frequency band combination available to the first primary network device.
  • the transceiver is further configured to receive a configuration of the secondary network device
  • the transceiver is further configured to send, to the terminal device, a configuration of the second primary network device and a configuration of the secondary network device.
  • the transceiver is further configured to receive a configuration of the secondary network device from the second primary network device.
  • the transceiver is further configured to receive a fourth message from the terminal device, where the fourth message is used to indicate an RRC connection re-establishment.
  • the embodiment of the present application further provides a terminal device 600, as shown in FIG. 6(a).
  • FIG. 6(a) shows only the main components of the terminal device.
  • the terminal device 600 includes a processor, a memory, a control circuit, an antenna, and an input/output device.
  • the processor is mainly used for processing the communication protocol and the communication data, and controlling the entire terminal device, executing the software program, and processing the data of the software program, for example, for supporting the terminal device 600 to execute the terminal device 600 in any of the above embodiments.
  • Memory is primarily used to store software programs and data.
  • the control circuit is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals.
  • the control circuit together with the antenna can also be called a transceiver, and is mainly used for transmitting and receiving RF signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are primarily used to receive user input data and output data to the user.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal, and then sends the radio frequency signal to the outside through the antenna in the form of electromagnetic waves.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data. .
  • FIG. 6(a) shows only one memory and processor for ease of illustration. In an actual terminal device, there may be multiple processors and memories.
  • the memory may also be referred to as a storage medium or a storage device, and the like.
  • the processor may include a baseband processor and a central processing unit, and the baseband processor is mainly used to process the communication protocol and the communication data, and the central processing unit is mainly used to control the entire terminal device 600.
  • the processor in FIG. 6(a) integrates the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit can also be independent processors and interconnected by technologies such as a bus.
  • the terminal device can include multiple baseband processors to adapt to different network standards, and the terminal device 600 can include multiple central processors to enhance its processing capabilities, and various components of the terminal device 600 can pass various buses. connection.
  • the baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the functions of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.
  • the antenna and control circuit having the transceiving function can be regarded as the transceiving unit 601 of the terminal device 600, and the processor having the processing function is regarded as the processing unit 602 of the terminal device 600.
  • the terminal device 600 includes a transceiving unit 601 and a processing unit 602.
  • the transceiver unit can also be referred to as a transceiver, a transceiver, a transceiver, and the like.
  • the device for implementing the receiving function in the transceiver unit 601 can be regarded as a receiving unit, and the device for implementing the sending function in the transceiver unit 601 is regarded as a sending unit, that is, the transceiver unit 601 includes a receiving unit and a sending unit.
  • the receiving unit may also be referred to as a receiver, a receiver, a receiving circuit, etc.
  • the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit.
  • the processor On the downlink, receiving downlink signals (including data and/or control information) transmitted by the network device through the antenna, and transmitting uplink signals (including data and/or control) to the network device through the antenna on the uplink.
  • Information in the processor, processing service data and signaling messages, which are processed according to radio access technologies (eg, LTE, NR, and access technologies of other evolved systems) used by the radio access network.
  • the processor is further configured to perform control and management on actions of the terminal device, and is used to perform processing performed by the terminal device in the foregoing embodiment.
  • the processor is further configured to support the terminal device to perform the processing procedure of the terminal device in FIG. 3(a), FIG. 3(b), and FIG.
  • Fig. 6(a) only shows a simplified design of the terminal device.
  • the terminal device may include any number of antennas, memories, processors, etc., and all terminal devices that can implement the present application are within the protection scope of the present application.
  • the transceiver unit is referred to as a transceiver
  • the processing unit is referred to as a processor.
  • the transceiver and the processor in the terminal device 600 are specifically configured to perform:
  • a transceiver configured to receive, by the secondary network device, a first RRC configuration of the secondary network device
  • the transceiver is further configured to send the first indication information to the primary network device, where the first indication information is used to indicate that the first RRC configuration fails.
  • the transceiver is further configured to send the first message to the primary network device, where the first message includes the first indication information.
  • the transceiver is further configured to send the first indication information to the primary network device
  • the second indication information is used to indicate that the first RRC configuration is received from the secondary network device
  • the first unit is configured to control an RRC connection between the primary network device and the terminal device.
  • the second unit is configured to control an RRC connection between the secondary network device and the terminal device.
  • the first unit is a first RRC entity
  • the second unit is a second RRC entity.
  • the transceiver is further configured to receive a new RRC configuration from the secondary network device.
  • the transceiver and the processor in the terminal device 600 are also specifically configured to perform:
  • a transceiver configured to receive a second RRC configuration of the secondary network device from the primary network device
  • the transceiver is further configured to send a second message to the primary network device, where the second message is used to request an RRC connection re-establishment.
  • the second message includes third indication information, where the third indication information is used to indicate that the second RRC configuration fails.
  • the transceiver is further configured to send the second message to the primary network device, where
  • the fourth indication information is used to indicate that the second RRC configuration is received from the primary network device, and the first unit is configured to control an RRC connection between the primary network device and the terminal device,
  • the second unit is configured to control an RRC connection between the secondary network device and the terminal device.
  • the first unit is a first RRC entity
  • the second unit is a second RRC entity.
  • the transceiver is further configured to receive, by the primary network device, a third RRC configuration of the primary network device;
  • the processor performs at least one of the following actions: stopping performing the second RRC configuration, releasing the second RRC configuration, and suspending a radio bearer under the secondary network device.
  • the processor performs at least one of the following actions, where the fifth indication information is used for the third RRC configuration. failure.
  • the processor may include circuitry for audio/video and logic functions of the terminal device.
  • the processor can include a digital signal processor device, a microprocessor device, an analog to digital converter, a digital to analog converter, and the like.
  • the control and signal processing functions of the mobile device can be distributed among these devices based on their respective capabilities.
  • the processor may also include an internal voice coder VC, an internal data modem DM, and the like.
  • the processor can include functionality to operate one or more software programs, which can be stored in a memory.
  • the processor and the stored software instructions can be configured to cause the terminal device to perform an action.
  • the processor can operate the linker.
  • the terminal device may also include a user interface, which may include, for example, an earphone or speaker, a microphone, an output device (eg, a display), an input device, etc., operatively coupled to the processor.
  • the processor can include user interface circuitry configured to control at least some of the functionality of one or more components of the user interface, such as a speaker, microphone, display, and the like.
  • the processor and/or user interface circuitry including the processor can be configured to control one of the one or more components of the user interface by computer program instructions (eg, software and/or firmware) stored in a memory accessible by the processor. Or multiple features.
  • the terminal device can include a battery for powering various circuits associated with the mobile device, such as circuitry that provides mechanical vibration as a detectable output.
  • the input device can include a device that allows the device to receive data, such as a keypad, a touch display, a joystick, and/or at least one other input device, and the like.
  • the terminal device may also include one or more connection circuit modules for sharing and/or obtaining data.
  • the terminal device can include a short range RF RF transceiver and/or detector such that data can be shared with and/or obtained from the electronic device in accordance with RF technology.
  • the terminal device may include other short range transceivers such as, for example, an infrared IR transceiver, a transceiver, a wireless universal serial bus USB transceiver, and the like.
  • the Bluetooth transceiver can operate according to low power or ultra low power Bluetooth technology.
  • the terminal device, and more specifically the short range transceiver is capable of transmitting and/or receiving data to and/or from an electronic device in the vicinity of the device, such as within 10 meters.
  • the terminal device is capable of transmitting and/or receiving data to and/or from an electronic device in accordance with various wireless networking technologies, including: Wi-Fi, Wi-Fi low power, WLAN technology, Such as IEEE 802.11 technology, IEEE 802.15 technology, IEEE 802.16 technology, and the like.
  • the terminal device can include a memory that can store information elements related to the mobile user, such as a subscriber identity module SIM. In addition to the SIM, the device may also include other removable and/or fixed memories.
  • the terminal device may include volatile memory and/or non-volatile memory.
  • volatile memory can include random access memory RAM including dynamic RAM and/or static RAM, on-chip and/or off-chip cache, and the like.
  • non-volatile memory can be embedded and/or removable, and can include, for example, read only memory, flash memory, magnetic storage devices such as a hard disk, a floppy disk drive, magnetic tape, and the like, an optical disk drive and/or media, Non-volatile random access memory NVRAM and the like.
  • the non-volatile memory can include a cache area for temporary storage of data. At least a portion of the volatile and/or non-volatile memory can be embedded in the processor.
  • the memory can store one or more software programs, instructions, information blocks, data, etc., which can be used by the terminal device to perform the functions of the mobile terminal.
  • the memory can include an identifier that uniquely identifies the terminal device, such as an International Mobile Equipment Identity IMEI code.
  • the embodiment of the present application further provides an apparatus 700, which may be a network device or a terminal device.
  • the device 700 includes at least a processor 701 and a memory 702.
  • a transceiver 703 can also be included, and a bus 704 can also be included.
  • the processor 701, the memory 702, and the transceiver 703 are all connected by a bus 704;
  • the memory 702 is configured to store a computer execution instruction
  • the processor 701 is configured to execute a computer execution instruction stored by the memory 702.
  • the processor 701 executes a computer execution instruction stored by the memory 702, such that the apparatus 700 performs the steps performed by the primary network device in any of the foregoing failure processing methods, or causes the primary network to
  • the device deploys the functional unit corresponding to the step, or performs the steps performed by the first primary network device in the foregoing switching method, or causes the first primary network device to deploy the functional unit corresponding to the step.
  • the processor 701 executes a computer execution instruction stored in the memory 702, so that the device 700 performs any of the foregoing failure processing methods or switching methods provided by the embodiments of the present application by the terminal device.
  • the processor 701 may include different types of processors 701, or include the same type of processor 701; the processor 701 may be any one of the following: a central processing unit (English: Central Processing Unit, CPU for short), ARM processing AMR's English full name: Advanced RISC Machines, RISC's English full name: Reduced Instruction Set Computing, Chinese translation: Reduced instruction set:), Field Programmable Gate Array (English: Field Programmable Gate Array, referred to as: FPGA) A device with computational processing power, such as a dedicated processor. In an optional implementation manner, the processor 701 can be integrated into a many-core processor.
  • the memory 702 may be any one or any combination of the following: a random access memory (English: Random Access Memory, RAM for short), a read only memory (English: read only memory, abbreviated as: ROM), nonvolatile Memory (English: non-volatile memory, referred to as: NVM), solid state drive (English: Solid State Drives, SSD for short), mechanical hard disk, disk, disk array and other storage media.
  • a random access memory (English: Random Access Memory, RAM for short)
  • ROM read only memory
  • NVM nonvolatile Memory
  • SSD Solid State Drives
  • the transceiver 703 is configured to perform data interaction between the device 700 and other devices; for example, if the device 700 is a network device, the network device can perform the method performed by the network device in any of the above embodiments; the network device passes through the transceiver 703 and the terminal.
  • the device performs data interaction; if the device 700 is a terminal device, the terminal may be a method performed by the terminal device in any of the above embodiments; the terminal device performs data interaction with the network device through the transceiver 703; the transceiver 703 may be any of the following One or any combination: a network interface (such as an Ethernet interface), a wireless network card, and the like having a network access function.
  • the bus 704 can include an address bus, a data bus, a control bus, etc., for ease of representation, Figure 7 shows the bus with a thick line.
  • the bus 704 can be any one or any combination of the following: an industry standard architecture (English: Industry Standard Architecture, ISA for short), and a Peripheral Component Interconnect (PCI) bus. And expand the industry standard structure (English: Extended Industry Standard Architecture, referred to as: EISA) bus and other wired data transmission devices.
  • an industry standard architecture English: Industry Standard Architecture, ISA for short
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the embodiment of the present application provides a computer readable storage medium.
  • the computer readable storage medium stores a computer execution instruction.
  • the processor of the terminal device executes the computer to execute the instruction, so that the terminal device performs the foregoing failure processing method and the switching provided by the application.
  • the embodiment of the present application provides a computer readable storage medium.
  • the computer readable storage medium stores a computer execution instruction.
  • the processor of the network device executes the computer to execute the instruction, so that the network device performs the foregoing failure processing method provided by the application. Steps performed by the primary network device, or causing the network device to deploy the functional unit corresponding to the step; or causing the network device to perform the steps performed by the first primary network device in the foregoing handover processing method provided by the present application, or to enable the network device to be deployed and The functional unit corresponding to this step.
  • Embodiments of the present application provide a computer program product comprising computer executed instructions stored in a computer readable storage medium.
  • the processor of the terminal device can read the computer execution instruction from the computer readable storage medium; the processor executes the computer to execute the instruction, so that the terminal device performs the steps performed by the terminal device in the foregoing method provided by the embodiment of the present application, or causes the terminal to The device deploys the functional unit corresponding to this step.
  • Embodiments of the present application provide a computer program product comprising computer executed instructions stored in a computer readable storage medium.
  • the processor of the network device can read the computer execution instruction from the computer readable storage medium; the processor executes the computer to execute the instruction, so that the network device performs the steps performed by the primary network device in the foregoing failure processing method provided by the embodiment of the present application, Or the network device is configured to perform the function corresponding to the step, or the network device is configured to perform the steps performed by the first primary network device in the foregoing handover method provided by the embodiment of the present application, or enable the network device to deploy the function corresponding to the step. unit.
  • the present application also provides a chip system including a processor for supporting a terminal device to implement the functions involved in the above aspects, for example, generating, receiving or processing data involved in the above methods and/or information.
  • the chip system further includes a memory that can be used to store program instructions and data necessary for the terminal device.
  • the chip system may be composed of a chip, or may include a chip and other discrete devices.
  • the present application also provides a chip system including a processor for supporting a network device to implement the functions involved in the above aspects, for example, generating, receiving or processing data and/or information involved in the above method.
  • the chip system further includes a memory for holding program instructions and data necessary for the data receiving device.
  • the chip system may be composed of a chip, or may include a chip and other discrete devices.
  • the present application further provides a terminal device 800, as shown in FIG. 8, including a processing unit 801 and a transceiver unit 802, which may be used to perform the method performed by the terminal device in any of the above embodiments, optionally
  • the processing unit 801 and the transceiver unit 802 are configured to execute:
  • the transceiver unit 802 is configured to receive, by the secondary network device, a first RRC configuration of the secondary network device.
  • the transceiver unit 802 is further configured to send the first indication information to the primary network device, where the first indication information is used to indicate that the first RRC configuration fails.
  • the transceiver unit 802 is further configured to send a first message to the primary network device, where the first message includes the first indication information.
  • the transceiver unit 802 is further configured to send the first indication information to the primary network device.
  • the second indication information is used to indicate that the first RRC configuration is received from the secondary network device, and the first unit is configured to control an RRC connection between the primary network device and the terminal device, The second unit is configured to control an RRC connection between the secondary network device and the terminal device.
  • the first unit is a first RRC entity
  • the second unit is a second RRC entity.
  • the transceiver unit 802 is further configured to receive a new RRC configuration from the secondary network device.
  • the processing unit 801 and the transceiver unit 802 are further configured to execute:
  • the transceiver unit 802 is configured to receive, by the primary network device, a second RRC configuration of the secondary network device.
  • the transceiver unit 802 is further configured to send a second message to the primary network device, where the second message is used to request an RRC connection re-establishment.
  • the second message includes third indication information, where the third indication information is used to indicate that the second RRC configuration fails.
  • the transceiver unit 802 is further configured to send the second message to the primary network device,
  • the fourth indication information is used to indicate that the second RRC configuration is received from the primary network device, and the first unit is configured to control an RRC connection between the primary network device and the terminal device.
  • the second unit is configured to control an RRC connection between the secondary network device and the terminal device.
  • the first unit is a first RRC entity
  • the second unit is a second RRC entity.
  • the transceiver unit 802 is further configured to receive, by the primary network device, a third RRC configuration of the primary network device;
  • the processing unit 801 performs at least one of the following actions: stopping performing the second RRC configuration, releasing the second RRC configuration, and suspending the radio bearer under the secondary network device. .
  • the processing unit 801 performs at least one of the following actions, where the fifth indication information is used for the third RRC Configuration failed.
  • the present application further provides a network device 900, as shown in FIG. 9, including a processing unit 901 and a transceiver unit 902, which can be used to perform the method performed by the primary network device in the foregoing failure processing method, or The method performed by the first primary network device in the foregoing switching method is performed.
  • the processing unit 901 and the transceiver unit 902 are configured to perform:
  • the transceiver unit 902 is configured to receive, by the terminal device, the first indication information, where the first indication information is used to indicate that the first RRC configuration of the secondary network device fails, and the first RRC configuration is configured by the terminal device from the secondary network Equipment reception;
  • the transceiver unit 902 is further configured to send a first request message to the secondary network device, where the first request message is used to request the secondary network device to update the RRC configuration or request to release the secondary network device.
  • the first request message includes the first indication information.
  • processing unit 901 and the transceiver unit 902 are further configured to:
  • the transceiver unit 902 is configured to receive a second message from the terminal device, where the second message is used to indicate RRC connection re-establishment, and the second RRC configuration is used by the terminal device. Receiving by the primary network device;
  • the transceiver unit 902 is further configured to initiate an RRC connection re-establishment to the terminal device.
  • the second message includes third indication information, where the indication information is used to indicate that the second RRC configuration fails.
  • processing unit 901 and the transceiver unit 902 are further configured to:
  • the transceiver unit 902 is configured to send a third message to the second primary network device, where the third message is used to request the handover, and the third message includes the capability between the first primary network device and the secondary network device Negotiation result;
  • the transceiver unit 902 is further configured to receive a configuration of the second primary network device that is sent by the second primary network device, where a configuration of the second primary network device is associated with the capability negotiation result.
  • the capability negotiation result includes a Layer 2 cache size available to the first primary network device and/or a frequency band combination available to the first primary network device.
  • the transceiver unit 902 is further configured to receive a configuration of the secondary network device.
  • the transceiver unit 902 is further configured to send, to the terminal device, a configuration of the second primary network device and a configuration of the secondary network device.
  • the transceiver unit 902 is further configured to receive a configuration of the secondary network device from the second primary network device.
  • the transceiver unit 902 is further configured to receive a fourth message from the terminal device, where the fourth message is used to indicate an RRC connection re-establishment.
  • the present application further provides a communication device 1000, which may be a terminal device, a baseband chip, etc., including a first unit 1001 and a second unit 1002, and may also be referred to.
  • a communication device 1000 which may be a terminal device, a baseband chip, etc., including a first unit 1001 and a second unit 1002, and may also be referred to.
  • FIG. 2(a) and FIG. 2(b) wherein the first unit 1001 and the second unit 1002 are configured to perform the functions performed by the first unit 1001 and the second unit 1002 in the foregoing failure processing method. description.
  • first unit 1001 is configured to control an RRC connection between the primary network device and the terminal device
  • second unit 1002 is configured to control an RRC connection between the secondary network device and the terminal device.
  • the second unit 1002 determines that the first RRC configuration of the secondary network device that is received by the terminal device from the secondary network device fails, generating second indication information, where the second indication information is used to indicate The first RRC configuration fails; the second unit 1002 sends the second indication information to the first unit 1001.
  • the second unit 1002 determines that the second RRC configuration of the secondary network device that is received by the terminal device from the primary network device fails, generating fourth indication information, where the fourth indication information is used to indicate the The second RRC configuration fails; the second unit 1002 sends the fourth indication information to the first unit 1001.
  • the first unit 1001 determines that the third RRC configuration of the secondary network device that is received by the terminal device from the primary network device fails, generating fifth indication information, where the fifth indication information is used by the first The third RRC configuration fails; the first unit 1001 sends the fifth indication information to the second unit 1002.
  • the second unit sends a failure indication information to the first unit, where the failure indication is used to indicate that the link between the terminal device and the secondary network device fails; the first unit receives the failure indication information.
  • the failure indication information is specifically used to indicate any one of the following: a timer expires, the number of retransmissions exceeds a maximum number of times, a random access failure, a secondary cell group change failure, a key failure, a verification failure, and a complete
  • the sexual protection fails, the secondary network configuration received from the secondary network device fails, and the secondary network configuration received from the primary network fails.
  • the failure indication information is used to indicate that the secondary network configuration received from the secondary network device fails
  • the failure indication information is the foregoing second indication information.
  • the failure indication information is used to indicate that the secondary network configuration received from the primary network fails
  • the failure indication information is the fourth indication information described above.
  • the first unit 1001 is a first RRC entity
  • the second unit 1002 is a second RRC entity.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center To another website, computer, server, or data center by wire (for example, coaxial cable, fiber, digital subscriber line (DSL), or wireless (such as infrared, wireless, microwave, etc.) Transfer.
  • the computer readable storage medium can be any available media that can be stored by a computer or a data storage device such as a server, data center, or the like that includes a plurality of available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).
  • a general purpose processor may be a microprocessor.
  • the general purpose processor may be any conventional processor, controller, microcontroller, or state machine.
  • the processor may also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other similar configuration. achieve.
  • the steps of a method or algorithm described in this application can be directly embedded in hardware, a software unit executed by a processor, or a combination of the two.
  • the software unit can be stored in a random access memory (English: Random-Access Memory, RAM for short), flash memory, read-only memory (English: Read-Only Memory, abbreviation: ROM), erasable programmable read-only register (English) : Erasable Programmable Read Only Memory (EPROM), Register, Hard Disk, Removable Disk, CD-ROM (English: Compact Disc Read-Only Memory, CD-ROM) or any other form of storage medium in the field .
  • the storage medium can be coupled to the processor such that the processor can read information from the storage medium and can write information to the storage medium.
  • the storage medium can also be integrated into the processor.
  • the processor and the storage medium may be disposed in an ASIC, and the ASIC may be disposed in the terminal device or the network device.
  • the processor and the storage medium may also be disposed in different components in the terminal device or the network device.
  • Computer readable media includes computer storage media and communication media that facilitates the transfer of computer programs from one place to another.
  • the storage medium can be any available media that any general purpose or special computer can access.
  • such computer-readable media can include, but is not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage device, or any other device or data structure that can be used for carrying or storing Other media that can be read by a general purpose or special computer, or a general purpose or special processor.
  • any connection can be appropriately defined as a computer readable medium, for example, if the software is from a website site, server or other remote source through a coaxial cable, fiber optic computer, twisted pair, digital subscriber line (DSL) Or wirelessly transmitted in, for example, infrared, wireless, and microwave, is also included in the defined computer readable medium.
  • the disk and the disc include a compressed disk, a laser disk, an optical disk, a digital versatile disk (DVD), a floppy disk, and a Blu-ray disk.
  • the disk usually replicates data magnetically. Discs are typically optically replicated with a laser. Combinations of the above may also be included in a computer readable medium.
  • the functions described herein can be implemented in hardware, software, firmware, or any combination thereof.
  • the functions may be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a general purpose or special purpose computer.

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Abstract

本申请提供一种失败处理方法、切换方法及终端设备、网络设备，用以提供一种终端接收辅网络设备的RRC配置及反馈RRC配置失败的方式，包括：终端设备直接从辅网络设备接收辅网络设备的第一RRC配置，当第一RRC配置失败时，终端设备向主网络设备发送第一指示信息，用于指示第一RRC配置失败，一方面，由于终端设备可直接从辅网络设备接收RRC配置，因而速度更快，另一方面，在第一RRC配置失败时，终端向主网络设备上报一个第一指示信息，指示了第一RRC配置失败，因而可使得主网络设备根据接收到的第一指示信息，明确了该第一RRC配置失败，进而可触发后续操作。

Description

一种失败处理方法、切换方法及终端设备、网络设备
本申请要求在2017年5月5日提交中华人民共和国知识产权局、申请号为201710314196.5、发明名称为“一种失败处理方法、切换方法及终端设备、网络设备”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
本申请涉及无线通信技术领域，尤其涉及无线通信***中失败处理方法、切换方法及终端设备、网络设备。
背景技术
如图1所示，为多连接场景，其中，一个终端设备与一个主网络设备及至少一个辅网络设备连接(图中以一个辅网络设备为例)，主网络设备和至少一个辅网络设备与核心网连接，其中，主网络设备的制式与辅网络设备的制式可以相同，也可以不同，当二者制式不同时，例如一个为长期演进(英文：Long Term Evolution，简称：LTE)基站，另一个为新无线(英文：New Radio，简称：NR)基站，此时，辅网络设备如何给终端设备发送无线资源控制(英文：Radio resource control，简称：RRC)配置，以及终端设备在确定RRC配置失败时如何反馈，均有待解决。
发明内容
本申请提供一种失败处理方法、切换方法及终端设备、网络设备，用以提供一种终端接收辅网络设备的RRC配置及反馈RRC配置失败的方式。
第一方面，本申请提供一种失败处理方法，包括：
终端设备从辅网络设备接收所述辅网络设备的第一RRC配置；
所述终端设备向主网络设备发送第一指示信息，所述第一指示信息用于指示所述第一RRC配置失败。
本申请，终端设备直接从辅网络设备接收辅网络设备的第一RRC配置，当第一RRC配置失败时，终端设备向主网络设备发送第一指示信息，用于指示第一RRC配置失败，一方面，由于终端设备可直接从辅网络设备接收RRC配置，因而速度更快，另一方面，在第一RRC配置失败时，终端向主网络设备上报一个第一指示信息，指示了第一RRC配置失败，因而可使得主网络设备根据接收到的第一指示信息，明确了该第一RRC配置失败，进而可触发后续操作。
可选地，所述终端设备向主网络设备发送第一指示信息，包括：所述终端设备向所述主网络设备发送第一消息，所述第一消息包括所述第一指示信息。可选地，第一消息为RRC连接重建立消息。
可选地，所述终端设备向主网络设备发送第一指示信息，包括：若所述终端设备的第一单元接收到所述终端设备的第二单元发送的第二指示信息，所述终端设备向所述主网络设备发送所述第一指示信息，所述第二指示信息用于指示从所述辅网络设备接收的所述第一RRC配置失败，所述第一单元用于控制所述主网络设备与所述终端设备之间的RRC连接，所述第二单元用于控制所述辅网络设备与所述终端设备之间的RRC连接。可选地，所述第一单元为第一RRC实体，所述第二单元为第二RRC实体。
可选地，所述终端设备从所述辅网络设备接收的新的RRC配置。
第二方面，本申请实施例提供一种终端设备，可以执行实现上述第一方面提供的任意一种方法。
在一种可能的设计中，该终端设备具有实现上述第一方面任一方法中终端设备行为的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多于一个与上述功能相对应的模块。可选的，该终端设备可以是用户设备，所述终端设备可用于直接从辅网络设备接收辅网络设备的第一RRC配置，当第一RRC配置失败时，终端设备向主网络设备发送第一指示信息，用于指示第一RRC配置失败，一方面，由于终端设备可直接从辅网络设备接收RRC配置，因而速度更快，另一方面，在第一RRC配置失败时，终端向主网络设备上报一个第一指示信息，指示了第一RRC配置失败，因而可使得主网络设备根据接收到的第一指示信息，明确了该第一RRC配置失败，进而可触发后续操作。
在一种可能的设计中，终端设备的结构中包括处理器和收发器，所述处理器被配置为支持终端设备执行上述第一方面任一方法中相应的功能，例如生成、接收或处理上述方法中所涉及的数据和/或信息。所述收发器用于支持终端设备与其它实体之间的通信，向其它实体发送或从其它实体接收上述第一方面任一方法中所涉及的信息或者指令。终端设备中还可以包括存储器，所述存储器用于与处理器耦合，其保存终端设备必要的程序指令和数据。
第三方面，本申请提供一种失败处理方法，包括：
终端设备从主网络设备接收辅网络设备的第二RRC配置；
若所述第二RRC配置失败，所述终端设备向所述主网络设备发送第二消息，所述第二消息用于请求RRC连接重建立。
本申请，终端设备从主网络设备接收辅网络设备的第二RRC配置，当第二RRC配置失败时，终端设备向主网络设备发送第二消息，用于请求RRC连接重建立，确定终端设备可请求得到正确的RRC配置。
可选地，所述第二消息包括第三指示信息，所述第三指示信息用于指示所述第二RRC配置失败。
可选地，若所述第二RRC配置失败，所述终端设备向所述主网络设备发送第二消息，包括：若所述终端设备的第一单元接收到所述终端设备的第二单元发送的第四指示信息，所述终端设备向所述主网络设备发送所述第二消息，所述第四指示信息用于指示从所述主网络设备接收的所述第二RRC配置失败，所述第一单元用于控制所述主网络设备与所述终端设备之间的RRC连接，所述第二单元用于控制所述辅网络设备与所述终端设备之间的RRC连接。可选地，所述第一单元为第一RRC实体，所述第二单元为第二RRC实体。
可选地，所述终端设备从所述主网络设备接收所述主网络设备的第三RRC配置；若所述第三RRC配置失败，所述终端设备执行下列动作中的至少一个：停止执行所述第二RRC配置、释放所述第二RRC配置、挂起所述辅网络设备下的无线承载。
第四方面，本申请实施例提供一种终端设备，可以执行实现上述第三方面提供的任意一种方法。
在一种可能的设计中，该终端设备具有实现上述第三方面任一方法中终端设备行为的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多于一个与上述功能相对应的模块。可选的，该终端设备可以是用户设备， 所述终端设备可用于终端设备从主网络设备接收辅网络设备的第二RRC配置，当第二RRC配置失败时，终端设备向主网络设备发送第二消息，用于请求RRC连接重建立，确定终端设备可请求得到正确的RRC配置。
在一种可能的设计中，终端设备的结构中包括处理器和收发器，所述处理器被配置为支持终端设备执行上述第三方面任一方法中相应的功能，例如生成、接收或处理上述方法中所涉及的数据和/或信息。所述收发器用于支持终端设备与其它实体之间的通信，向其它实体发送或从其它实体接收上述第三方面任一方法中所涉及的信息或者指令。终端设备中还可以包括存储器，所述存储器用于与处理器耦合，其保存终端设备必要的程序指令和数据。
第五方面，本申请提供一种失败处理方法，包括：
主网络设备从终端设备接收第一指示信息，所述第一指示信息用于指示辅网络设备的第一RRC配置失败，所述第一RRC配置由所述终端设备从所述辅网络设备接收；
所述主网络设备向所述辅网络设备发送第一请求消息，所述第一请求消息用于请求所述辅网络设备更新RRC配置或请求释放所述辅网络设备。
可选地，所述第一请求消息包含所述第一指示信息。
第六方面，本申请实施例提供一种网络设备，可以执行实现上述第五方面提供的任意一种方法。
在一种可能的设计中，该网络设备具有实现上述第五方面任一方法中主网络设备行为的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多于一个与上述功能相对应的模块。可选的，该网络设备可以是基站，传输点等，所述网络设备可用于从终端设备接收第一指示信息，所述第一指示信息用于指示辅网络设备的第一RRC配置失败；所述主网络设备向所述辅网络设备发送第一请求消息，所述第一请求消息用于请求所述辅网络设备更新RRC配置或请求释放所述辅网络设备。
在一种可能的设计中，网络设备的结构中包括处理器和收发器，所述处理器被配置为支持网络设备执行上述第五方面任一方法中相应的功能，例如生成、接收或处理上述方法中所涉及的数据和/或信息。所述收发器用于支持网络设备与其它实体之间的通信，向其它实体发送或从其它实体接收上述第五方面任一方法中所涉及的信息或者指令。网络设备中还可以包括存储器，所述存储器用于与处理器耦合，其保存网络设备必要的程序指令和数据。
第七方面，本申请提供一种失败处理方法，包括：
若辅网络设备的第二RRC配置失败，主网络设备从终端设备接收第二消息，所述第二消息用于指示RRC连接重建立，所述第二RRC配置由所述终端设备从所述主网络设备接收；
所述主网络设备向所述终端设备发送第六消息，所述第六消息用于重建信令无线承载(英文：Signaling Radio bearer，简称：SRB)。
可选地，所述第二消息包括第三指示信息，所述指示信息用于指示所述第二RRC配置失败。
第八方面，本申请实施例提供一种网络设备，可以执行实现上述第七方面提供的任意一种方法。
在一种可能的设计中，该网络设备具有实现上述第七方面任一方法中主网络设备行为 的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多于一个与上述功能相对应的模块。可选的，该网络设备可以是基站，传输点等，所述网络设备可用于若辅网络设备的第二RRC配置失败，主网络设备从终端设备接收第二消息，所述第二消息用于指示RRC连接重建立；所述主网络设备向所述终端设备发送第六消息，所述第六消息用于重建SRB。
在一种可能的设计中，网络设备的结构中包括处理器和收发器，所述处理器被配置为支持网络设备执行上述第七方面任一方法中相应的功能，例如生成、接收或处理上述方法中所涉及的数据和/或信息。所述收发器用于支持网络设备与其它实体之间的通信，向其它实体发送或从其它实体接收上述第七方面任一方法中所涉及的信息或者指令。网络设备中还可以包括存储器，所述存储器用于与处理器耦合，其保存网络设备必要的程序指令和数据。
第九方面，本申请提供一种切换方法，包括：
第一主网络设备向第二主网络设备发送第三消息，所述第三消息用于请求切换，所述第三消息包含所述第一主网络设备与所述辅网络设备之间的能力协商结果；
所述第一主网络设备接收所述第二主网络设备发送的所述第二主网络设备的配置，所述第二主网络设备的配置与所述能力协商结果有关联。
本申请，第一主网络设备直接将第一主网络设备与辅网络设备之间的能力协商结果发送至第二主网络设备，使得第二主网络设备基于能力协商结果生成配置，无需获取并理解辅网络设备的配置，可保证切换过程中，第二主网络设备能够成功地生成配置。
可选地，所述能力协商结果包含所述第一主网络设备可用的Layer 2缓存大小和/或所述第一主网络设备可用的频带组合。
可选地，所述第一主网络设备接收所述辅网络设备的配置；
所述第一主网络设备向所述终端设备发送所述第二主网络设备的配置和所述辅网络设备的配置。
可选地，所述第一主网络设备接收所述辅网络设备的配置，包括：所述第一主网络设备从所述第二主网络设备接收所述辅网络设备的配置。
可选地，若所述辅网络设备的配置失败，所述第一主网络设备从所述终端设备接收第四消息，所述第四消息用于指示RRC连接重建立。
第十方面，本申请实施例提供一种网络设备，可以执行实现上述第九方面提供的任意一种方法。
在一种可能的设计中，该网络设备具有实现上述第九方面任一方法中第一主网络设备行为的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多于一个与上述功能相对应的模块。可选的，该网络设备可以是基站，传输点等，所述网络设备可用于直接将第一主网络设备与辅网络设备之间的能力协商结果发送至第二主网络设备，使得第二主网络设备基于能力协商结果生成配置，无需获取并理解辅网络设备的配置，可保证切换过程中，第二主网络设备能够成功地生成配置。
在一种可能的设计中，网络设备的结构中包括处理器和收发器，所述处理器被配置为支持网络设备执行上述第九方面任一方法中相应的功能，例如生成、接收或处理上述方法中所涉及的数据和/或信息。所述收发器用于支持网络设备与其它实体之间的通信，向其它实体发送或从其它实体接收上述第九方面任一方法中所涉及的信息或者指令。网络设备中 还可以包括存储器，所述存储器用于与处理器耦合，其保存网络设备必要的程序指令和数据。
第十一方面，本申请实施例提供一种通信设备，包括第一单元和第二单元；
若所述第二单元确定终端设备从辅网络设备接收的所述辅网络设备的第一RRC配置失败，则生成第二指示信息，所述第二指示信息用于指示所述第一RRC配置失败；
所述第二单元向所述第一单元发送所述第二指示信息；
其中，所述第一单元用于控制所述主网络设备与所述终端设备之间的RRC连接，所述第二单元用于控制所述辅网络设备与所述终端设备之间的RRC连接。
可选地，所述第一单元为第一RRC实体，所述第二单元为第二RRC实体。
第十二方面，本申请实施例提供一种通信设备，包括第一单元和第二单元；
若所述第二单元确定终端设备从主网络设备接收的辅网络设备的第二RRC配置失败，则生成第四指示信息，所述第四指示信息用于指示所述第二RRC配置失败；
所述第二单元向所述第一单元发送所述第四指示信息；
其中，所述第一单元用于控制所述主网络设备与所述终端设备之间的RRC连接，所述第二单元用于控制所述辅网络设备与所述终端设备之间的RRC连接。
可选地，所述第一单元为第一RRC实体，所述第二单元为第二RRC实体。
第十三方面，本申请实施例提供一种通信设备，包括第一单元和第二单元；
若所述第一单元确定终端设备从主网络设备接收的辅网络设备的第三RRC配置失败，则生成第五指示信息，所述第五指示信息用于所述第三RRC配置失败；
所述第一单元向所述第二单元发送所述第五指示信息；
其中，所述第一单元用于控制所述主网络设备与所述终端设备之间的RRC连接，所述第二单元用于控制所述辅网络设备与所述终端设备之间的RRC连接。
可选地，所述第一单元为第一RRC实体，所述第二单元为第二RRC实体。
第十四方面，本申请实施例提供一种通信设备，包括第一单元和第二单元；
所述第二单元向第一单元发送失败指示信息，所述失败指示用于指示终端设备与辅网络设备之间的链路失败；所述第一单元接收所述失败指示信息；
其中，所述第一单元用于控制所述主网络设备与所述终端设备之间的RRC连接，所述第二单元用于控制所述辅网络设备与所述终端设备之间的RRC连接。
可选地，所述失败指示信息具体用于指示下列中的任意一个：定时器超时、重传次数超过最大次数、随机接入失败、辅小区组改变失败、秘钥失败、校验失败、完整性保护失败、从辅网络设备接收的辅网络配置失败、从主网络接收的辅网络配置失败。
可选地，所述第一单元为第一RRC实体，所述第二单元为第二RRC实体。
上述第十至第十四方面中的通信设备例如可以是终端设备，或基带芯片等。
第十五方面，本申请实施例提供了一种计算机存储介质，用于储存为上述第二方面提供的终端设备所使用的计算机软件指令，其包含用于执行上述第一方面所设计的程序；或者，用于储存为上述第四方面提供的网络设备所使用的计算机软件指令，其包含用于执行上述第三方面所设计的程序。
第十六方面，本申请实施例提供了一种计算机存储介质，用于储存为上述第六方面提供的终端设备所使用的计算机软件指令，其包含用于执行上述第五方面所设计的程序；或者，用于储存为上述第八方面提供的网络设备所使用的计算机软件指令，其包含用于执行 上述第七方面所设计的程序；或者，用于储存为上述第十方面提供的终端设备所使用的计算机软件指令，其包含用于执行上述第九方面所设计的程序。
第十七方面，本申请还提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面或第三方面所述的方法，该计算机程序产品包括计算机执行指令，该计算机执行指令存储在计算机可读存储介质中。终端设备的处理器可以从计算机可读存储介质读取该计算机执行指令；处理器执行该计算机执行指令，使得终端设备执行本申请实施例提供的上述方法中由终端设备执行的步骤，或者使得终端设备部署与该步骤对应的功能单元。
第十八方面，本申请还提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第五方面或第七方面所述的方法，该计算机程序产品包括计算机执行指令，该计算机执行指令存储在计算机可读存储介质中。网络设备的处理器可以从计算机可读存储介质读取该计算机执行指令；处理器执行该计算机执行指令，使得网络设备执行本申请实施例提供的上述方法中由主网络设备执行的步骤，或者使得网络设备部署与该步骤对应的功能单元。
第十九方面，本申请还提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第九方面所述的方法，该计算机程序产品包括计算机执行指令，该计算机执行指令存储在计算机可读存储介质中。网络设备的处理器可以从计算机可读存储介质读取该计算机执行指令；处理器执行该计算机执行指令，使得网络设备执行本申请实施例提供的上述方法中由第一主网络设备执行的步骤，或者使得网络设备部署与该步骤对应的功能单元。
第二十方面，本申请还提供了一种芯片***，该芯片***包括处理器，用于支持终端设备实现上述各方面中所涉及的功能，例如，生成、接收或处理上述方法中所涉及的数据和/或信息。在一种可能的设计中，所述芯片***还包括存储器，所述存储器，用于保存终端设备必要的程序指令和数据。该芯片***，可以由芯片构成，也可以包含芯片和其他分立器件。
第二十一方面，本申请还提供了一种芯片***，该芯片***包括处理器，用于支持网络设备实现上述各方面中所涉及的功能，例如，生成、接收或处理上述方法中所涉及的数据和/或信息。在一种可能的设计中，所述芯片***还包括存储器，所述存储器，用于保存网络设备必要的程序指令和数据。该芯片***，可以由芯片构成，也可以包含芯片和其他分立器件。
附图说明
图1为本申请提供的多连接示意图；
图2(a)为本申请提供的一种网络结构图；
图2(b)为本申请提供的另一种网络结构图；
图3(a)为本申请提供的一种失败处理方法流程图；
图3(b)为本申请提供的另一种失败处理方法流程图；
图4为本申请提供的一种切换方法流程图；
图5为本申请提供的网络设备结构示意图；
图6(a)为本申请提供的终端设备结构示意图；
图6(b)为本申请提供的终端设备结构示意图；
图7为本申请提供的装置结构示意图；
图8为本申请提供的终端设备结构示意图；
图9为本申请提供的网络设备结构示意图；
图10为本申请提供的通信设备结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
本申请可以应用于现有的蜂窝通信***，如全球移动通讯(英文：Global System for Mobile Communication，简称：GSM)，宽带码分多址(英文：Wideband Code Division Multiple Access，简称：WCDMA)，长期演进(英文：Long Term Evolution，简称：LTE)等***中，适用于第五代移动通信***(英文：5rd-Generation，简称：5G)***，如采用新无线(英文：New Radio，简称：NR)的接入网，云无线接入网(英文：Cloud Radio Access Network，简称：CRAN)以及连接到5G核心网的LTE接入网等通信***，也可以扩展到类似的无线通信***中，如无线保真(英文：WIreless-Fidelity，简称：wifi)、全球微波互联接入(英文：Worldwide Interoperability for Microwave Access，简称：WiMAX)，以及第三代合作伙伴计划(英文：3rd Generation Partnership Project，简称：3GPP)其它相关的蜂窝***，同时也适用于其他采用正交频分复用(英文：Orthogonal Frequency Division Multiplexing，简称：OFDM)接入技术的无线通信***，以及还适用于未来的无线通信***。
本申请描述的网络架构以及业务场景是为了更加清楚的说明本申请的技术方案，并不构成对于本申请提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请提供的技术方案对于类似的技术问题，同样适用。
为便于理解下面对本申请中涉及到的一些名词做些说明。
1)、终端设备(Terminal Equipment)，又称之为用户设备(英文：User Equipment，简称：UE)，或称为终端(Terminal)，是一种向用户提供语音和/或数据连通性的设备，例如，具有无线连接功能或无线通信功能的手持式设备、车载设备、可穿戴设备、计算设备、控制设备或连接到无线调制解调器的其它处理设备，以及各种形式的移动台(英文：Mobile station，简称：MS)等。常见的终端设备包括：手机(phone)、平板电脑(pad)、笔记本电脑(notebook)、掌上电脑、移动互联网设备(英文：mobile internet device，简称：MID)、可穿戴设备如智能手表、智能手环、计步器等。为方便描述，本申请中，上面提到的设备统称为终端设备。
2)、网络设备，例如可以是基站，是一种将终端设备接入到无线网络的设备，包括但不限于：演进型节点B(英文：evolved Node B，简称：eNB)、无线网络控制器(英文：radio network controller，简称：RNC)、节点B(英文：Node B，简称：NB)、基站控制器(英文：Base Station Controller，简称：BSC)、基站收发台(英文：Base  Transceiver Station，简称：BTS)、家庭基站(例如，Home evolved NodeB，或Home Node B，简称：HNB)、基带单元(英文：BaseBand Unit，简称：BBU)、新空口基站(英文：g NodeB，简称：gNB)、传输点(英文：Transmitting and receiving point，简称：TRP)、发射点(英文：Transmitting point，简称：TP)、移动交换中心等，此外，还可以包括Wifi接入点(英文：Access Point，简称：AP)等。其中通过无线信道与终端设备进行直接通信的装置通常是基站，所述基站可以包括各种形式的宏基站、微基站、中继站、接入点或射频拉远单元(英文：Remote Radio Unit，简称：RRU)等，当然，与终端设备进行无线通信的也可以是其他具有无线通信功能的网络设备，本申请对此不做唯一限定。在不同***中，具备基站功能的设备的名称可能会有所不同，例如在LTE网络中，称为演进的节点B(evolved NodeB，eNB或eNodeB)，在第三代(the 3rd Generation，3G)网络中，称为节点B(Node B)等。
本申请中术语“和/或”，仅仅是一种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。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
下面将结合附图，对本申请实施例所提供的方案进行更为详细的描述。
如图2(a)所示，为本申请提供的一种网络结构图，其中，终端设备可与主网络设备和至少一个辅网络设备(图中以一个为例)交互，并且终端设备包括第一单元和第二单元，第一单元可以是第一RRC实体或第一RRC功能单元或第一RRC单元，用于控制主网络设备与终端设备之间的RRC连接，第二单元可以是第二RRC实体或第二RRC功能单元或第二RRC单元，用于控制辅网络设备与终端设备之间的RRC连接。
例如，核心网为演进分组核心网(英文：Evolved Packet Core，简称：EPC)，主网络设备为LTE基站(如eNB)，与EPC之间可以为终端设备建立控制面和用户面连接，辅网络设备为NR基站(如gNB)，与EPC之间只能建立用户面连接，第一单元为LTE RRC实体，负责LTE无线资源的管理，第二单元为NR RRC实体，负责NR无线资源的管理，以及，核心网与主网络设备之间例如可以采用S1接口，核心网与辅网络设备之间例如可以采用S1接口，主网络设备与辅网络设备之间例如可以采用X2接口。
再比如，核心网为下一代核心网(英文：Next Generation Core，简称：NGC)、或5G核心网(英文：5G Core Network，简称：5G-CN)、或5G核心网(英文：5G Core，简称：5GC)，下面以核心网为NGC为例进行说明。主网络设备为LTE基站(如eNB)，与NGC之间可以为终端设备建立控制面和用户面连接，辅网络设备为NR基站(如gNB)，与NGC之间只能建立用户面连接，第一单元为LTE RRC实体，负责LTE无线资源，第二单元为NR RRC实体，负责NR无线资源的管理，以及，核心网与主网络设备之间例如可以采用下一代(英文：Next Generation，简称：NG)接口，核心网与辅网络设备之间例如可以采用NG接口，主网络设备与辅网络设备之间例如可以采用Xn接口(即下一代接口)。
再比如，核心网为NGC、或5G-CN、或5GC，下面以核心网为NGC为例进行说明。，主网络设备为NR基站(如gNB)，与NGC之间可以为终端设备建立控制面和用户面连接，辅网络设备为LTE基站(如eNB)，与NGC之间只能建立用户面连接，第一单元为NR RRC实体，负责NR无线资源，第二单元为LTE RRC实体，负责LTE 无线资源的管理，以及，核心网与主网络设备之间例如可以采用NG接口，核心网与辅网络设备之间例如可以采用NG接口，主网络设备与辅网络设备之间例如可以采用Xn接口(即下一代接口)。
当然，核心网也还可以是其它核心网，主网络设备可以是其它网络设备，例如前文提到的各种类型网络设备，辅网络设备也可以是其它网络设备，例如前文提到的各种类型网络设备。
本申请中，主网络设备和辅网络设备的制式可以相同，也可以不同，下面主要针对主网络设备和辅网络设备制式不同进行说明，例如，主网络设备为LTE基站，辅网络设备为NR基站，或者主网络设备为NR基站，辅网络设备为LTE基站，并且，为方便说明，本申请中，第一单元与主网络设备具有相同的制式，第二单元与辅网络设备具有相同的制式，例如，当主网络设备为NR基站，辅网络设备为LTE基站时，则第一单元负责NR无线资源的管理，例如为NR RRC实体，第二单元负责LTE无线资源的管理，例如为LTE RRC实体；再比如，当主网络设备为LTE基站，辅网络设备为NR基站时，则第一单元负责LTE无线资源的管理，例如为LTE RRC实体，第二单元负责NR无线资源的管理，例如为NR RRC实体。
终端设备可同时从主网络设备和辅网络设备的空口获得无线资源进行数据传输，获得传输速率的增益。
本申请，第一单元和第二单元负责各自制式的配置，互相不理解彼此的配置。
主网络设备和辅网络设备之间互相独立，从网络侧看，主网络设备和辅网络设备都有RRC可以产生完整的RRC消息，针对图2(a)所示的场景，辅网络设备生成的RRC消息(其中携带辅网络设备的RRC配置)发送给主网络设备，主网络设备将辅网络设备的RRC消息作为一个容器(container)携带于主网络设备的RRC消息中发送给终端设备，即，终端设备从主网络设备接收主网络设备的RRC消息，该RRC消息中包含主网络设备的RRC配置和辅网络设备的RRC配置，其中，主网络设备的RRC消息中的辅网络设备的RRC配置是由辅网络设备通过辅网络设备的RRC消息发送至主网络设备的。
针对图2(a)所示的RRC配置方式，本申请也称为联合配置，即辅网络设备将辅网络设备的RRC配置发送至主网络设备，主网络设备再将辅网络设备的RRC配置发送至终端设备，同时，主网络设备还可以将主网络设备的RRC配置发送至终端设备，即，在联合配置场景中，辅网络设备的RRC配置需要通过主网络设备发送至终端设备。
如图2(b)所示，为本申请提供的另一种网络结构图，其中核心网、主网络设备、辅网络设备、第一单元、第二单元的类型及相互关系与图2(a)中核心网、主网络设备、辅网络设备、第一单元、第二单元的类型及相互关系相同，具体可参考上述描述，图2(b)与图2(a)主要不同之处在于：图2(b)中，辅网络设备可直接向终端设备发送RRC消息，其中携带辅网络设备的RRC配置，主网络设备向终端设备发送RRC消息，其中携带主网络设备的RRC配置，因此，图2(b)所示的RRC配置方式，本申请也称为独立配置，即主网络设备的RRC配置和辅网络设备的RRC配置是由主网络设备和辅网络设备分别独立发送至终端设备的。
下面分别结合附图2(a)和附图2(b)，对本申请提供的两种失败处理方法分别做详细说明。
参考图3(a)，为本申请提供的一种失败处理方法流程图，该方法对应于图2(a)所示的场景，即联合配置场景，具体包括以下步骤：
步骤101、主网络设备向终端设备发送辅网络设备的第二RRC配置。
其中，RRC配置指的是网络设备的RRC实体生成的配置信息，用于对终端设备进行配置，例如RRC配置包含各个协议层的配置，包括但不限定于分组数据汇聚协议配置(英文：Packet Data Convergence Protocol，简称：PDCP)、无线链路控制(Radio Link Control,简称RLC)配置、媒体介入控制层(英文：Media Access Control，简称：MAC)配置、物理层配置等。
可选地，辅网络设备将辅网络设备的第二RRC配置携带于辅网络设备的RRC消息中发送至主网络设备，主网络设备接收到辅网络设备的RRC消息后，将辅网络设备的RRC配置携带于主网络设备的RRC消息中发送给终端设备，可选地，所述主网络设备的RRC消息还携带有主网络设备的第三RRC配置。
步骤102、终端设备从主网络设备接收辅网络设备的第二RRC配置。
步骤103、若所述第二RRC配置失败，终端设备向主网络设备发送第二消息。
其中，所述第二消息用于请求RRC连接重建立。可选地，所述第二消息为RRC连接重建立消息，可选地，所述第二消息中包含第三指示信息，该指示信息用于指示所述第二RRC配置失败。
在一种可能的实现方式中，参照图2(a)，若终端设备的第二单元确定终端设备从主网络设备接收的辅网络设备的所述第二RRC配置失败，则生成第四指示信息，该第四指示信息用于指示所述第二RRC配置失败；然后，第二单元向第一单元发送所述第四指示信息，若所述第一单元接收到所述第二单元发送的所述第四指示信息，则所述终端设备向所述主网络设备发送所述第二消息。其中，所述第二单元可以是所述终端设备的第二RRC实体。
在另一种可能的实现方式中，参照图2(a)，若终端设备的第二单元确定终端设备从主网络设备接收的辅网络设备的所述第二RRC配置成功，则生成第七指示信息，该第七指示信息用于指示所述第二RRC配置成功；然后，第二单元向第一单元发送所述第七指示信息，若所述第一单元接收到所述第二单元发送的所述第七指示信息，则所述终端设备向所述主网络设备发送第五消息，所述第五消息用于指示第二RRC配置成功。其中，所述第二单元可以是所述终端设备的第二RRC实体。
步骤104、主网络设备从终端设备接收第二消息。
步骤105、主网络设备向所述终端设备发送第六消息，所述第六消息用于重建SRB。
上述步骤101-步骤105，终端设备从主网络设备接收到辅网络设备的第二RRC配置，当终端设备确定第二RRC配置失败，具体地，由终端设备的第二单元确定所述第二RRC配置失败，并发送第四指示信息给第一单元，则终端设备向主网络设备发送第二消息，用于请求RRC连接重建立，主网络设备接收到第二消息后，发送RRC连接重建立。
可选地，在上述步骤101-步骤105中的任一步骤之前或之后，还包括：
终端设备从所述主网络设备接收所述主网络设备的第三RRC配置；若所述第三RRC配置失败，则终端设备执行下列动作中的至少一个：停止执行所述第二RRC配置、释放所述第二RRC配置、挂起所述辅网络设备下的无线承载。
可选地，所述终端设备执行下列动作中的至少一个，包括：若所述第二单元接收到所述第一单元发送的第五指示信息，所述终端设备执行下列动作中的至少一个，所述第五指示信息用于所述第三RRC配置失败。
即，当终端设备还从主网络设备接收到主网络设备的第三RRC配置，且第三RRC配置失败，则第一单元向第二单元发送第五指示信息，用于所述第三RRC配置失败，以及，终端设备进一步地还停止执行上述第二RRC配置、和/或，释放上述第二RRC配置、和/或挂起辅网络设备下的无线承载。
并且，若所述第三RRC配置失败，所述终端设备还需要执行以下操作：
所述终端设备向所述主网络设备发送第七消息，所述第七消息用于请求RRC连接重建立。可选地，所述第七消息包括第七指示信息，所述第七指示信息用于指示所述终端设备从所述主网络设备接收的所述主网络设备的所述第三RRC配置失败。
参考图3(b)，为本申请提供的另一种失败处理方法流程图，该方法对应于图2(b)所示的场景，即独立配置场景，具体包括以下步骤：
步骤201、终端设备从辅网络设备接收辅网络设备的第一RRC配置。
步骤202、终端设备向主网络设备发送第一指示信息。
其中，所述第一指示信息用于指示所述第一RRC配置失败。
可选地，所述终端设备向主网络设备发送第一指示信息，包括：所述终端设备向所述主网络设备发送第一消息，所述第一消息包括所述第一指示信息。
可选地，参考图3(b)，所述终端设备向主网络设备发送第一指示信息，包括：若终端设备的第一单元接收到终端设备的第二单元发送的第二指示信息，所述终端设备向所述主网络设备发送所述第一指示信息，所述第二指示信息用于指示从所述辅网络设备接收的所述第一RRC配置失败，即第二单元若确定第一RRC配置失败，则向第一单元发送第二指示信息，第一单元若接收到第二单元发送的第二指示信息，则终端设备向主网络设备发送第一指示信息。
步骤203、主网络设备从终端设备接收第一指示信息。
步骤204、主网络设备向辅网络设备发送第一请求消息。
其中，所述第一请求消息用于请求所述辅网络设备更新RRC配置或请求释放所述辅网络设备。
辅网络设备更新RRC配置之后，将新的RRC配置发送至主网络设备，主网络设备将新的RRC配置发送至终端设备，即终端设备从主网络设备接收新的RRC配置。
需要说明的是，此时主网络设备和用户设备之间执行RRC连接重建立过程。
或者还可以是，辅网络设备更新RRC配置之后，将新的RRC配置直接发送至终端设备，即终端设备从辅网络设备接收的新的RRC配置，该方法，终端设备直接从辅网络设备接收新的RRC配置，相较于从主网络设备接收辅网络设备的新的RRC配置，速度更快。
可选地，所述第一请求消息包含所述第一指示信息。
作为步骤204的替代方案，步骤204还可以替换为步骤204a：
步骤204a、主网络设备释放所述辅网络设备。
主网络设备释放辅网络设备之后，还可以重新接入一个新的辅网络设备。
可选地，本申请还可以将图3(a)和图3(b)所示的实施方法作为一个整体进行 理解，即，终端设备既可以从辅网络设备接收辅网络设备的第一RRC配置，也可以从主网络设备接收辅网络设备的第二RRC配置。
若终端设备确定终端设备与辅网络设备之间的链路失败，则第二单元向第一单元发送失败指示信息，其中，失败指示信息指示了发生链路失败的具体原因，例如，失败指示信息具体用于指示定时器超时、重传次数超过最大次数、随机接入失败、辅小区组改变失败、秘钥失败、校验失败、完整性保护失败、从辅网络设备接收的辅网络配置失败或从主网络接收的辅网络配置失败。
所述定时器可以是在所述终端设备检测到所述辅网络设备下的主小区发生物理层问题时启动的。所述重传次数可以是RLC层发生重传的次数，也可以是其他层发生的重传次数。所述随机接入失败可以是指所述终端设备与所述辅网络设备下的小区进行随机接入时发生失败。所述辅小区组改变失败可以是指所述终端设备更改辅小区组失败，所述辅小区组可以是所述辅网络设备下为所述终端设备服务的小区组。所述秘钥失败可以是指所述终端设备与所述辅网络设备之间秘钥不一致导致终端设备无法正常加密和/或解密。所述校验失败可以是所述终端设备与所述辅网络设备进行校验时发送失败。所述完整性保护失败可以是指所述终端设备与所述辅网络设备之间的完整性保护失败。详细内容可参见3GPP TS 36.331、3GPP TS 33.401相关内容。上述说明只是作为一种示例，但并不限于上述说明。
其中，当失败指示信息用于指示从辅网络设备接收的辅网络配置失败时，失败指示信息即为前文所述的第二指示信息；
当失败指示信息用于指示从主网络接收的辅网络配置失败时，失败指示信息即为前文所述的第四指示信息。
可选地，失败指示信息可以是由第二单元在确定终端设备与辅网络设备之间的链路失败时生成的，也可以是由所述终端设备的第三单元在确定终端设备与辅网络设备之间的链路失败时生成第六指示信息，该第六指示信息用于指示终端设备与辅网络设备之间的链路失败，第三单元向第二单元发送所述第六指示信息，第二单元接收到第六指示信息后，生成所述失败指示信息；或者还可以是，第三单元在确定终端设备与辅网络设备之间的链路失败时生成失败指示信息后直接发送至第一单元。
其中，所述第三单元可以是所述终端设备的第二MAC实体或第二RLC实体或第二物理层单元或者应用层实体，所述第二MAC实体、所述第二RLC实体、第二物理层单元，与所述辅网络设备的制式相同。
当第一单元接收到所述失败指示信息后，若所述失败指示信息指示了定时器超时，则终端设备向主网络设备发送指示信息，所述指示信息用于指示定时器超时。其中，主网络设备在接收到该指示信息后，不做RRC链路重建立。
当第一单元接收到所述失败指示信息后，若所述失败指示信息指示了重传次数超过最大次数，则终端设备向主网络设备发送指示信息，所述指示信息用于指示重传次数超过最大次数。其中，主网络设备在接收到该指示信息后，不做RRC链路重建立。
当第一单元接收到所述失败指示信息后，若所述失败指示信息指示了随机接入失败，则终端设备向主网络设备发送指示信息，所述指示信息用于指示随机接入失败。其中，主网络设备在接收到该指示信息后，不做RRC链路重建立。
当第一单元接收到所述失败指示信息后，若所述失败指示信息指示了辅小区组改 变失败，则终端设备向主网络设备发送指示信息，所述指示信息用于指示辅小区组改变失败。其中，主网络设备在接收到该指示信息后，不做RRC链路重建立。
当第一单元接收到所述失败指示信息后，若所述失败指示信息指示了秘钥失败，则终端设备向主网络设备发送指示信息，所述指示信息用于指示秘钥失败。其中，主网络设备在接收到该指示信息后，不做RRC链路重建立。
当第一单元接收到所述失败指示信息后，若所述失败指示信息指示了校验失败，则终端设备向主网络设备发送指示信息，所述指示信息用于指示校验失败。其中，主网络设备在接收到该指示信息后，不做RRC链路重建立。
当第一单元接收到所述失败指示信息后，若所述失败指示信息指示了完整性保护失败，则终端设备向主网络设备发送指示信息，第一指示信息用于指示完整性保护失败。其中，主网络设备在接收到该指示信息后，不做RRC链路重建立。
当第一单元接收到所述失败指示信息后，若所述失败指示信息指示了从辅网络设备接收的辅网络配置失败，则终端设备向主网络设备发送第一指示信息，所述第一指示信息用于指示辅网络设备接收的辅网络配置失败(即前文所述的第一RRC配置失败)。其中，主网络设备在接收到该第一指示信息后，不做RRC链路重建立。
当第一单元接收到所述失败指示信息后，若所述失败指示信息指示了从主网络接收的辅网络配置失败，则终端设备向主网络设备发送第二消息，所述第二消息用于请求RRC连接重建立。其中，主网络设备在接收到该第二消息后，做RRC链路重建立。可选地，所述第二消息中还包括第三指示信息，所述第三指示信息用于指示从主网络接收的辅网络配置失败(即前文所述的第二RRC配置失败)。
上述本申请提供的实施例中，分别从各个网元本身、以及从各个网元之间交互的角度对本申请实施例提供的失败处理方法进行了介绍。可以理解的是，各个网元，例如终端设备(例如UE)、网络设备(例如基站)等为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
在主网络设备的切换场景中，即终端设备连接的第一主网络设备需要切换为第二主网络设备，且保持终端设备连接的辅网络设备不变，以及保持辅网络设备的配置不变，按照现有技术，由于第一主网络设备、第二主网络设备、辅网络设备的制式相同，例如均为LTE网络设备、或均为NR网络设备等，因此，切换流程为：第一主网络设备将辅网络设备的配置发送给第二主网络设备，第二主网络设备接收到辅网络设备的配置之后，可读取并理解其中的配置,因此可基于配置和终端设备的能力，生成配置，并且保证最终配置不超过终端设备的能力。
考虑到另一种应用场景，第一主网络设备和第二主网络设备具有相同的制式，且与辅网络设备的制式不同，此时，按照上述切换流程，由于第二主网络设备无法理解辅网络设备的配置，因此，不能按照上述切换方法从第一主网络设备切换至第二主网络设备。
为此，本申请还提供一种切换方法，如图4所示，包括以下步骤：
步骤301、第一主网络设备向第二主网络设备发送第三消息。
其中，所述第三消息用于请求切换，例如，该第三消息为切换请求消息，所述第三消息包含所述第一主网络设备与所述辅网络设备之间的能力协商结果。
可选地，所述能力协商结果包含所述第一主网络设备可用的Layer 2缓存大小、和/或所述第一主网络设备可用的频带组合。
其中，Layer 2缓存指的是终端设备的Layer 2缓存，频带组合指的是终端设备的频带组合(band combination)。
步骤302、第二主网络设备基于所述第一主网络设备与所述辅网络设备之间的能力协商结果，生成所述第二主网络设备的配置。
即，所述第二主网络设备的配置与所述能力协商结果有关联。
可选地，所述配置为RRC配置。
步骤303、所述第二主网络设备向第一主网络设备发送所述第二主网络设备的配置。
步骤304、第一主网络设备接收第二主网络设备发送的第二主网络设备的配置。
通过上述步骤301～步骤304，由第一主网络设备直接将第一主网络设备与辅网络设备之间的能力协商结果发送至第二主网络设备，使得第二主网络设备基于能力协商结果生成配置，无需获取并理解辅网络设备的配置，可保证切换过程中，第二主网络设备能够成功地生成配置。
可选地，所述第一主网络设备还可以接收所述辅网络设备的配置；进而，第一主网络设备向终端设备发送第二主网络设备的配置和辅网络设备的配置。其中，所述第一主网络设备接收所述辅网络设备的配置，包括：所述第一主网络设备从所述第二主网络设备接收所述辅网络设备的配置，或者，所述第一主网络设备从辅网络设备接收所述辅网络设备的配置。
即，通过上述步骤，第二主网络设备将第二主网络设备的配置发送至第一主网络设备，可选地，第二主网络设备还将辅网络设备的配置发送至第一主网络设备(或者是，辅网络设备将辅网络设备的配置发送至第一主网络设备)，第一主网络设备在接收到第二主网络设备的配置之后，可选地，还接收到辅网络设备的配置，第一主网络设备将第二主网络设备的配置发送至终端设备，可选地，还将辅网络设备的配置发送至终端设备。
可选地，终端设备若接收到第一主网络设备发送的辅网络设备的配置，且所述辅网络设备的配置失败，则终端设备向第一主网络设备发送第四消息，所述第四消息用于指示RRC连接重建立。
其中，终端设备在接收到第一主网络设备发送的辅网络设备的配置且辅网络设备的配置失败时的失败处理方法的详细过程，可参考前文和图3(a)所示的描述，此处不再赘述。
下面举例说明，以频带组合的协商为例，针对频带组合的能力协商，一种可选的方案是，维护一张频带组合列表，例如如表1所示，第一列为index(索引)，第二列为第一主网络设备能用的频带组合，第三列为第一主网络设备使用第二列的频带组合时，辅网络设备能够使用的频带组合。之所以存在这样的组合，是因为不同频带可能会使用同一个终端设备的射频链，同一个射频链无法同时被第一主网络设备和辅网络 设备使用。
网络侧能够从终端设备的能力中得到表1信息，具体地，第一主网络设备只需要知道index对应的第一主网络设备的频带组合，辅网络设备只需要知道index对应的辅网络设备的频带组合，在能力协商过程中，第一主网络设备选择一组频带组合，并将相应的index发送至辅网络设备，因此辅网络设备可以知道辅网络设备能够使用的频带组合，从而保证最终的配置不会超过终端设备的能力。例如，第一主网络设备选择的频带组合为1、3、5，则第一主网络设备将index 4发送至辅网络设备，则辅网络设备得知能够使用的频带组合为2、3、4。
表1
Index(索引) 第一主网络设备的频带组合 辅网络设备的频带组合
1 1、2、3、4 2、3、5
2 2、3、4 2、3、4、5
3 4、5 1、2、3
4 1、3、5 2、3、4
第一主网络设备在确定了第一主网络设备可用的频带组合后，例如可用的频带组合为1、3、5，将第一主网络设备可用的频带组合发送至第二主网络设备。
再以Layer 2缓存为例，假设终端设备的Layer 2缓存大小为1G，则第一主网络设备与辅网络设备经过协商，例如最终确定第一主网络设备可用的Layer 2缓存大小为600M，辅网络设备可用的Layer 2缓存大小为400M。
第一主网络设备在确定了第一主网络设备可用的Layer 2缓存大小和可用的频带组合后，将第一主网络设备可用的Layer 2缓存大小和可用的频带组合发送至第二主网络设备，第二主网络设备进而生成配置，例如生成RRC配置，并发送至第一主网络设备，由第一主网络设备再发送至终端设备。
可选地，辅网络设备根据辅网络设备可用的Layer 2缓存大小和可用的频带组合，生成配置，并发送至第二主网络设备，第二主网络设备将辅网络设备的配置和第二主网络设备的配置一起发送至第一主网络设备，由第一主网络设备发送至终端设备。
基于相同的发明构思，本申请实施例还提供一种网络设备500，如图5所示，该网络设备500可应用于执行上述失败处理方法中由主网络设备执行的方法、及上述切换方法中由第一主网络设备执行的方法。网络设备500包括一个或多个远端射频单元(英文：remote radio unit，简称：RRU)501和一个或多个基带单元(英文：baseband unit，简称：BBU)502。所述RRU501可以称为收发单元、收发机、收发电路、或者收发器等等，其可以包括至少一个天线5011和射频单元5012。所述RRU501部分主要用于射频信号的收发以及射频信号与基带信号的转换。所述BBU502部分主要用于进行基带处理，对网络设备进行控制等。所述RRU501与BBU502可以是物理上设置在一起，也可以物理上分离设置的，即分布式网络设备。
所述BBU502为网络设备的控制中心，也可以称为处理单元，主要用于完成基带处理功能，如信道编码，复用，调制，扩频等等。例如所述BBU(处理单元)可以用于控制网络设备执行上述任一失败处理方法中由主网络设备执行的方法、及上述切换方法中由第一主网络设备执行的方法。
在一个示例中，所述BBU502可以由一个或多个单板构成，多个单板可以共同支持单一接入制式的无线接入网(如LTE网)，也可以分别支持不同接入制式的无线接入网。所述BBU502还包括存储器5021和处理器5022。所述存储器5021用以存储必要的指令和数据。所述处理器5022用于控制网络设备进行必要的动作，例如用于控制网络设备执行上述任一实施例中由网络设备执行的方法。所述存储器5021和处理器5022可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板公用相同的存储器和处理器。此外每个单板上还设置有必要的电路。
在上行链路上，通过所述天线5011接收终端设备发送的上行链路信号(包括数据等)，在下行链路上，通过所述天线5011向终端设备发送下行链路信号(包括数据和/或控制信息)，在所述处理器5022中，对业务数据和信令消息进行处理，这些单元根据无线接入网采用的无线接入技术(例如，LTE、NR及其他演进***的接入技术)来进行处理。所述处理器5022还用于对网络设备的动作进行控制管理，用于执行上述实施例中由网络设备进行的处理。所述处理器5022还用于支持网络设备执行图3(a)、图3(b)中涉及由主网络设备处理的过程，以及及图4中涉及第一主网络设备执行的方法。
可以理解的是，图5仅仅示出了所述网络设备的简化设计。在实际应用中，所述网络设备可以包含任意数量的天线，存储器，处理器，射频单元，RRU，BBU等，而所有可以实现本申请的网络设备都在本申请的保护范围之内。
具体地，本申请中，以RRU501称为收发器为例，则网络设备500中的收发器和处理器具体可用于执行：
收发器，用于从终端设备接收第一指示信息，所述第一指示信息用于指示辅网络设备的第一RRC配置失败，所述第一RRC配置由所述终端设备从所述辅网络设备接收；
收发器，还用于向所述辅网络设备发送第一请求消息，所述第一请求消息用于请求所述辅网络设备更新RRC配置或请求释放所述辅网络设备。
可选地，所述第一请求消息包含所述第一指示信息。
网络设备500中的收发器和处理器具体还可用于执行：
若辅网络设备的第二RRC配置失败，收发器，用于从终端设备接收第二消息，所述第二消息用于指示RRC连接重建立，所述第二RRC配置由所述终端设备从所述主网络设备接收；
所述收发器，还用于向所述终端设备发起RRC连接重建立。
可选地，所述第二消息包括第三指示信息，所述指示信息用于指示所述第二RRC配置失败。
网络设备500中的收发器和处理器具体还可用于执行：
收发器，用于向第二主网络设备发送第三消息，所述第三消息用于请求切换，所述第三消息包含所述第一主网络设备与所述辅网络设备之间的能力协商结果；
所述收发器，还用于接收所述第二主网络设备发送的所述第二主网络设备的配置，所述第二主网络设备的配置与所述能力协商结果有关联。
可选地，所述能力协商结果包含所述第一主网络设备可用的Layer 2缓存大小和/ 或所述第一主网络设备可用的频带组合。
可选地，所述收发器还用于接收所述辅网络设备的配置；
所述收发器还用于向所述终端设备发送所述第二主网络设备的配置和所述辅网络设备的配置。
可选地，所述收发器还用于从所述第二主网络设备接收所述辅网络设备的配置。
可选地，若所述辅网络设备的配置失败，所述收发器还用于从所述终端设备接收第四消息，所述第四消息用于指示RRC连接重建立。
基于相同的发明构思，本申请实施例还提供一种终端设备600，如图6(a)所示，为便于说明，图6(a)仅示出了终端设备的主要部件。如图6(a)所示，终端设备600包括处理器、存储器、控制电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对整个终端设备进行控制，执行软件程序，处理软件程序的数据，例如用于支持终端设备600执行上述任一实施例中由终端设备600执行的方法。存储器主要用于存储软件程序和数据。控制电路主要用于基带信号与射频信号的转换以及对射频信号的处理。控制电路和天线一起也可以叫做收发器，主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。
当终端设备开机后，处理器可以读取存储单元中的软件程序，解释并执行软件程序的指令，处理软件程序的数据。当需要通过无线发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端设备600时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。
本领域技术人员可以理解，为了便于说明，图6(a)仅示出了一个存储器和处理器。在实际的终端设备中，可以存在多个处理器和存储器。存储器也可以称为存储介质或者存储设备等，本申请对此不做限制。
作为一种可选的实现方式，处理器可以包括基带处理器和中央处理器，基带处理器主要用于对通信协议以及通信数据进行处理，中央处理器主要用于对整个终端设备600进行控制，执行软件程序，处理软件程序的数据。图6(a)中的处理器集成了基带处理器和中央处理器的功能，本领域技术人员可以理解，基带处理器和中央处理器也可以是各自独立的处理器，通过总线等技术互联。本领域技术人员可以理解，终端设备可以包括多个基带处理器以适应不同的网络制式，终端设备600可以包括多个中央处理器以增强其处理能力，终端设备600的各个部件可以通过各种总线连接。所述基带处理器也可以表述为基带处理电路或者基带处理芯片。所述中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器中，也可以以软件程序的形式存储在存储单元中，由处理器执行软件程序以实现基带处理功能。
示例性的，在申请中，可以将具有收发功能的天线和控制电路视为终端设备600的收发单元601，将具有处理功能的处理器视为终端设备600的处理单元602。如图6(a)所示，终端设备600包括收发单元601和处理单元602。收发单元也可以称为收发器、收发机、收发装置等。可选地，可以将收发单元601中用于实现接收功能的器 件视为接收单元，将收发单元601中用于实现发送功能的器件视为发送单元，即收发单元601包括接收单元和发送单元示例性的，接收单元也可以称为接收机、接收器、接收电路等，发送单元可以称为发射机、发射器或者发射电路等。
在下行链路上，通过天线接收网络设备发送的下行链路信号(包括数据和/或控制信息)，在上行链路上，通过天线向网络设备发送上行链路信号(包括数据和/或控制信息)，在处理器中，对业务数据和信令消息进行处理，这些单元根据无线接入网采用的无线接入技术(例如，LTE、NR及其他演进***的接入技术)来进行处理。所述处理器还用于对终端设备的动作进行控制管理，用于执行上述实施例中由终端设备进行的处理。处理器还用于支持终端设备执行图3(a)、图3(b)、图4中涉及终端设备的处理过程。
可以理解的是，图6(a)仅仅示出了所述终端设备的简化设计。在实际应用中，所述终端设备可以包含任意数量的天线，存储器，处理器等，而所有可以实现本申请的终端设备都在本申请的保护范围之内。
具体地，本申请中，以收发单元称为收发器，处理单元称为处理器为例，则终端设备600中的收发器和处理器具体可用于执行：
收发器，用于从辅网络设备接收所述辅网络设备的第一RRC配置；
收发器，还用于向主网络设备发送第一指示信息，所述第一指示信息用于指示所述第一RRC配置失败。
可选地，收发器，还用于向所述主网络设备发送第一消息，所述第一消息包括所述第一指示信息。
可选地，若所述终端设备的第一单元接收到所述终端设备的第二单元发送的第二指示信息，收发器，还用于向所述主网络设备发送所述第一指示信息，所述第二指示信息用于指示从所述辅网络设备接收的所述第一RRC配置失败，所述第一单元用于控制所述主网络设备与所述终端设备之间的RRC连接，所述第二单元用于控制所述辅网络设备与所述终端设备之间的RRC连接。
可选地，所述第一单元为第一RRC实体，所述第二单元为第二RRC实体。
可选地，收发器，还用于从所述辅网络设备接收的新的RRC配置。
终端设备600中的收发器和处理器具体还可用于执行：
收发器，用于从主网络设备接收辅网络设备的第二RRC配置；
若所述第二RRC配置失败，收发器，还用于向所述主网络设备发送第二消息，所述第二消息用于请求RRC连接重建立。
可选地，所述第二消息包括第三指示信息，所述第三指示信息用于指示所述第二RRC配置失败。
可选地，若所述终端设备的第一单元接收到所述终端设备的第二单元发送的第四指示信息，收发器，还用于向所述主网络设备发送所述第二消息，所述第四指示信息用于指示从所述主网络设备接收的所述第二RRC配置失败，所述第一单元用于控制所述主网络设备与所述终端设备之间的RRC连接，所述第二单元用于控制所述辅网络设备与所述终端设备之间的RRC连接。
可选地，所述第一单元为第一RRC实体，所述第二单元为第二RRC实体。
可选地，收发器，还用于从所述主网络设备接收所述主网络设备的第三RRC配置；
若所述第三RRC配置失败，所述处理器执行下列动作中的至少一个：停止执行所述第二RRC配置、释放所述第二RRC配置、挂起所述辅网络设备下的无线承载。
可选地，若所述第二单元接收到所述第一单元发送的第五指示信息，所述处理器执行下列动作中的至少一个，所述第五指示信息用于所述第三RRC配置失败。
如图6(b)所示，为本申请提供的另一终端设备示意图，可用于执行上述任一实施例中由终端设备执行的操作。其中，处理器可以包括用于终端设备的音频/视频和逻辑功能的电路。例如，处理器可以包括数字信号处理器设备、微处理器设备、模数转换器、数模转换器等等。可以根据这些设备各自的能力而在这些设备之间分配移动设备的控制和信号处理功能。处理器还可以包括内部语音编码器VC、内部数据调制解调器DM等等。此外，处理器可以包括操作一个或多个软件程序的功能，所述软件程序可以存储在存储器中。通常，处理器和所存储的软件指令可以被配置为使终端设备执行动作。例如，处理器能够操作连接程序。
终端设备还可以包括用户接口，其例如可以包括耳机或扬声器、麦克风、输出装置(例如显示器)、输入装置等等，其可操作地耦合到处理器。在这一点上，处理器可以包括用户接口电路，其被配置为至少控制所述用户接口的一个或多个元件(诸如扬声器、麦克风、显示器等等)的一些功能。处理器和/或包括处理器的用户接口电路可以被配置为通过存储在处理器可访问的存储器中的计算机程序指令(例如软件和/或固件)来控制用户接口的一个或多个元件的一个或多个功能。尽管并未示出，但是终端设备可以包括用于向与移动设备相关的各种电路供电的电池，所述电路例如为提供机械振动来作为可检测输出的电路。输入装置可以包括允许所述装置接收数据的设备，诸如小键盘、触摸显示器、游戏杆和/或至少一个其他输入设备等。
终端设备还可以包括用于共享和/或获得数据的一个或多个连接电路模块。例如，所述终端设备可以包括短距射频RF收发机和/或检测器，从而可以根据RF技术与电子设备共享和/或从电子设备获得数据。所述终端设备可以包括其他短距收发机，诸如例如红外IR收发机、使用收发机、无线通用串行总线USB收发机等等。蓝牙收发机能够根据低功耗或超低功耗蓝牙技术操作。在这一点上，终端设备并且更具体地是短距收发机能够向和/或从在所述装置附近(诸如在10米内)的电子设备发送和/或接收数据。尽管并未示出，所述终端设备能够根据各种无线联网技术来向和/或从电子设备发送和/或接收数据，这些技术包括:Wi-Fi、Wi-Fi低功耗、WLAN技术，诸如IEEE 802.11技术、IEEE 802.15技术、IEEE 802.16技术等等。
终端设备可以包括可存储与移动用户相关的信息元素的存储器，诸如用户身份模块SIM。除了SIM，所述装置还可以包括其他可移除和/或固定存储器。终端设备可以包括易失性存储器和/或非易失性存储器。例如，易失性存储器可以包括随机存取存储器RAM，其包括动态RAM和/或静态RAM、芯片上和/或芯片外高速缓冲存储器等等。非易失性存储器可以是嵌入式的和/或可移除的，其可以包括例如只读存储器、闪存存储器、磁性存储设备，例如硬盘、软盘驱动器、磁带等等、光盘驱动器和/或介质、非易失性随机存取存储器NVRAM等等。类似于易失性存储器，非易失性存储器可以包括用于数据的暂时存储的高速缓冲区域。易失性和/或非易失性存储器的至少一部分可以嵌入到处理器中。存储器可以存储一个或多个软件程序、指令、信息块、数据等等，其可以由所述终端设备用来执行移动终端的功能。例如，存储器可以包括能够唯一标 识终端设备的标识符，诸如国际移动设备标志IMEI码。
基于相同的发明构思，本申请实施例还提供一种装置700，该装置700可以为网络设备，也可以为终端设备，如图7所示，该装置700至少包括处理器701和存储器702，进一步还可以包括收发器703，以及还可以包括总线704。
所述处理器701、所述存储器702和所述收发器703均通过总线704连接；
所述存储器702，用于存储计算机执行指令；
所述处理器701，用于执行所述存储器702存储的计算机执行指令；
所述装置700为网络设备时，所述处理器701执行所述存储器702存储的计算机执行指令，使得所述装置700执行上述任一失败处理方法中由主网络设备执行的步骤，或者使得主网络设备部署与该步骤对应的功能单元、或者执行上述切换方法中由第一主网络设备执行的步骤，或者使得第一主网络设备部署与该步骤对应的功能单元。
所述装置700为终端设备时，所述处理器701执行所述存储器702存储的计算机执行指令，使得所述装置700执行本申请实施例提供的上述任一失败处理方法或切换方法中由终端设备执行的步骤，或者使得终端设备部署与该步骤对应的功能单元。
处理器701，可以包括不同类型的处理器701，或者包括相同类型的处理器701；处理器701可以是以下的任一种：中央处理器(英文：Central Processing Unit，简称：CPU)、ARM处理器(AMR的英文全称为：Advanced RISC Machines，RISC的英文全称为：Reduced Instruction Set Computing，中文翻译为：精简指令集：)、现场可编程门阵列(英文：Field Programmable Gate Array，简称：FPGA)、专用处理器等具有计算处理能力的器件。一种可选实施方式，所述处理器701可以集成为众核处理器。
存储器702可以是以下的任一种或任一种组合：随机存取存储器(英文：Random Access Memory，简称：RAM)、只读存储器(英文：read only memory，简称：ROM)、非易失性存储器(英文：non-volatile memory，简称：NVM)、固态硬盘(英文：Solid State Drives，简称：SSD)、机械硬盘、磁盘、磁盘整列等存储介质。
收发器703用于装置700与其他设备进行数据交互；例如，如果装置700为网络设备，则网络设备可以执行上述任一实施例中由网络设备执行的方法；该网络设备通过收发器703与终端设备进行数据交互；如果装置700为终端设备，则终端可以上述任一实施例中由终端设备执行的方法；该终端设备通过收发器703与网络设备进行数据交互；收发器703可以是以下的任一种或任一种组合：网络接口(例如以太网接口)、无线网卡等具有网络接入功能的器件。
该总线704可以包括地址总线、数据总线、控制总线等，为便于表示，图7用一条粗线表示该总线。总线704可以是以下的任一种或任一种组合：工业标准体系结构(英文：Industry Standard Architecture，简称：ISA)总线、外设组件互连标准(英文：Peripheral Component Interconnect，简称：PCI)总线、扩展工业标准结构(英文：Extended Industry Standard Architecture，简称：EISA)总线等有线数据传输的器件。
本申请实施例提供一种计算机可读存储介质，计算机可读存储介质中存储有计算机执行指令；终端设备的处理器执行该计算机执行指令，使得终端设备执行本申请提供的上述失败处理方法、切换方法中由终端设备执行的步骤，或者使得终端设备部署与该步骤对应的功能单元。
本申请实施例提供一种计算机可读存储介质，计算机可读存储介质中存储有计算 机执行指令；网络设备的处理器执行该计算机执行指令，使得网络设备执行本申请提供的上述失败处理方法中由主网络设备执行的步骤，或者使得网络设备部署与该步骤对应的功能单元；或者使得网络设备执行本申请提供的上述切换处理方法中由第一主网络设备执行的步骤，或者使得网络设备部署与该步骤对应的功能单元。
本申请实施例提供一种计算机程序产品，该计算机程序产品包括计算机执行指令，该计算机执行指令存储在计算机可读存储介质中。终端设备的处理器可以从计算机可读存储介质读取该计算机执行指令；处理器执行该计算机执行指令，使得终端设备执行本申请实施例提供的上述方法中由终端设备执行的步骤，或者使得终端设备部署与该步骤对应的功能单元。
本申请实施例提供一种计算机程序产品，该计算机程序产品包括计算机执行指令，该计算机执行指令存储在计算机可读存储介质中。网络设备的处理器可以从计算机可读存储介质读取该计算机执行指令；处理器执行该计算机执行指令，使得网络设备执行本申请实施例提供的上述失败处理方法中由主网络设备执行的步骤，或者使得网络设备部署与该步骤对应的功能单元；或者，使得网络设备执行本申请实施例提供的上述切换方法中由第一主网络设备执行的步骤，或者使得网络设备部署与该步骤对应的功能单元。
本申请还提供了一种芯片***，该芯片***包括处理器，用于支持终端设备实现上述各方面中所涉及的功能，例如，生成、接收或处理上述各方法中所涉及的数据和/或信息。在一种可能的设计中，所述芯片***还包括存储器，所述存储器，可用于保存终端设备必要的程序指令和数据。该芯片***，可以是由芯片构成，也可以是包含芯片和其他分立器件。
本申请还提供了一种芯片***，该芯片***包括处理器，用于支持网络设备实现上述各方面中所涉及的功能，例如，生成、接收或处理上述方法中所涉及的数据和/或信息。在一种可能的设计中，所述芯片***还包括存储器，所述存储器，用于保存数据接收设备必要的程序指令和数据。该芯片***，可以是由芯片构成，也可以是包含芯片和其他分立器件。
基于相同的发明构思，本申请还提供一种终端设备800，如图8所示，包括处理单元801和收发单元802，可用于执行上述任一实施例中由终端设备执行的方法，可选地，所述处理单元801和收发单元802用于执行：
收发单元802，用于从辅网络设备接收所述辅网络设备的第一RRC配置；
收发单元802，还用于向主网络设备发送第一指示信息，所述第一指示信息用于指示所述第一RRC配置失败。
可选地，收发单元802，还用于向所述主网络设备发送第一消息，所述第一消息包括所述第一指示信息。
可选地，若所述终端设备的第一单元接收到所述终端设备的第二单元发送的第二指示信息，收发单元802，还用于向所述主网络设备发送所述第一指示信息，所述第二指示信息用于指示从所述辅网络设备接收的所述第一RRC配置失败，所述第一单元用于控制所述主网络设备与所述终端设备之间的RRC连接，所述第二单元用于控制所述辅网络设备与所述终端设备之间的RRC连接。
可选地，所述第一单元为第一RRC实体，所述第二单元为第二RRC实体。
可选地，收发单元802，还用于从所述辅网络设备接收的新的RRC配置。
所述处理单元801和收发单元802还用于执行：
收发单元802，用于从主网络设备接收辅网络设备的第二RRC配置；
若所述第二RRC配置失败，收发单元802，还用于向所述主网络设备发送第二消息，所述第二消息用于请求RRC连接重建立。
可选地，所述第二消息包括第三指示信息，所述第三指示信息用于指示所述第二RRC配置失败。
可选地，若所述终端设备的第一单元接收到所述终端设备的第二单元发送的第四指示信息，收发单元802，还用于向所述主网络设备发送所述第二消息，所述第四指示信息用于指示从所述主网络设备接收的所述第二RRC配置失败，所述第一单元用于控制所述主网络设备与所述终端设备之间的RRC连接，所述第二单元用于控制所述辅网络设备与所述终端设备之间的RRC连接。
可选地，所述第一单元为第一RRC实体，所述第二单元为第二RRC实体。
可选地，收发单元802，还用于从所述主网络设备接收所述主网络设备的第三RRC配置；
若所述第三RRC配置失败，所述处理单元801执行下列动作中的至少一个：停止执行所述第二RRC配置、释放所述第二RRC配置、挂起所述辅网络设备下的无线承载。
可选地，若所述第二单元接收到所述第一单元发送的第五指示信息，所述处理单元801执行下列动作中的至少一个，所述第五指示信息用于所述第三RRC配置失败。
基于相同的发明构思，本申请还提供一种网络设备900，如图9所示，包括处理单元901和收发单元902，可用于执行上述失败处理方法中由主网络设备执行的方法，或者，可用于执行上述切换方法中由第一主网络设备执行的方法，可选地，所述处理单元901和收发单元902用于执行：
收发单元902，用于从终端设备接收第一指示信息，所述第一指示信息用于指示辅网络设备的第一RRC配置失败，所述第一RRC配置由所述终端设备从所述辅网络设备接收；
收发单元902，还用于向所述辅网络设备发送第一请求消息，所述第一请求消息用于请求所述辅网络设备更新RRC配置或请求释放所述辅网络设备。
可选地，所述第一请求消息包含所述第一指示信息。
可选地，所述处理单元901和收发单元902还用于执行：
若辅网络设备的第二RRC配置失败，收发单元902，用于从终端设备接收第二消息，所述第二消息用于指示RRC连接重建立，所述第二RRC配置由所述终端设备从所述主网络设备接收；
所述收发单元902，还用于向所述终端设备发起RRC连接重建立。
可选地，所述第二消息包括第三指示信息，所述指示信息用于指示所述第二RRC配置失败。
可选地，所述处理单元901和收发单元902还用于执行：
收发单元902，用于向第二主网络设备发送第三消息，所述第三消息用于请求切换，所述第三消息包含所述第一主网络设备与所述辅网络设备之间的能力协商结果；
所述收发单元902，还用于接收所述第二主网络设备发送的所述第二主网络设备的配置，所述第二主网络设备的配置与所述能力协商结果有关联。
可选地，所述能力协商结果包含所述第一主网络设备可用的Layer 2缓存大小和/或所述第一主网络设备可用的频带组合。
可选地，所述收发单元902还用于接收所述辅网络设备的配置；
所述收发单元902还用于向所述终端设备发送所述第二主网络设备的配置和所述辅网络设备的配置。
可选地，所述收发单元902还用于从所述第二主网络设备接收所述辅网络设备的配置。
可选地，若所述辅网络设备的配置失败，所述收发单元902还用于从所述终端设备接收第四消息，所述第四消息用于指示RRC连接重建立。
基于相同的发明构思，如图10所示，本申请还提供一种通信设备1000，所述通信设备1000可以是终端设备、基带芯片等，包括第一单元1001和第二单元1002，也可参考图2(a)和图2(b)，其中，第一单元1001和第二单元1002可用于执行上述失败处理方法中分别由第一单元1001和第二单元1002执行的功能，具体可参考前文描述。
示例性，下面给出第一单元1001和第二单元1002的部分功能的描述，其中，所述第一单元1001用于控制所述主网络设备与所述终端设备之间的RRC连接，所述第二单元1002用于控制所述辅网络设备与所述终端设备之间的RRC连接。
可选地，若所述第二单元1002确定所述终端设备从辅网络设备接收的所述辅网络设备的第一RRC配置失败，则生成第二指示信息，所述第二指示信息用于指示所述第一RRC配置失败；所述第二单元1002向所述第一单元1001发送所述第二指示信息
可选地，若所述第二单元1002确定所述终端设备从主网络设备接收的辅网络设备的第二RRC配置失败，则生成第四指示信息，所述第四指示信息用于指示所述第二RRC配置失败；所述第二单元1002向所述第一单元1001发送所述第四指示信息。
可选地，若所述第一单元1001确定所述终端设备从主网络设备接收的辅网络设备的第三RRC配置失败，则生成第五指示信息，所述第五指示信息用于所述第三RRC配置失败；所述第一单元1001向所述第二单元1002发送所述第五指示信息。
可选地，所述第二单元向第一单元发送失败指示信息，所述失败指示用于指示所述终端设备与辅网络设备之间的链路失败；所述第一单元接收所述失败指示信息。可选地，所述失败指示信息具体用于指示下列中的任意一个：定时器超时、重传次数超过最大次数、随机接入失败、辅小区组改变失败、秘钥失败、校验失败、完整性保护失败、从辅网络设备接收的辅网络配置失败、从主网络接收的辅网络配置失败。
其中，当失败指示信息用于指示从辅网络设备接收的辅网络配置失败时，失败指示信息即为前文所述的第二指示信息；
当失败指示信息用于指示从主网络接收的辅网络配置失败时，失败指示信息即为前文所述的第四指示信息。
可选地，所述第一单元1001为第一RRC实体，所述第二单元1002为第二RRC实体。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实 现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如，同轴电缆、光纤、数字用户线(英文：Digital Subscriber Ling，简称：DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存储的任何可用介质或者是包含一个多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，DVD)或者半导体介质(例如，固态硬盘(英文：Solid State Disk，简称：SSD))等。
本领域技术人员还可以了解到本申请列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个***的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现所述的功能，但这种实现不应被理解为超出本申请保护的范围。
本申请中所描述的各种说明性的逻辑单元和电路可以通过通用处理器，数字信号处理器，专用集成电路(英文：application specific integrated circuit，简称：ASIC)，现场可编程门阵列(英文：Field－Programmable Gate Array，简称：FPGA)或其它可编程逻辑装置，离散门或晶体管逻辑，离散硬件部件，或上述任何组合的设计来实现或操作所描述的功能。通用处理器可以为微处理器，可选地，该通用处理器也可以为任何传统的处理器、控制器、微控制器或状态机。处理器也可以通过计算装置的组合来实现，例如数字信号处理器和微处理器，多个微处理器，一个或多个微处理器联合一个数字信号处理器核，或任何其它类似的配置来实现。
本申请中所描述的方法或算法的步骤可以直接嵌入硬件、处理器执行的软件单元、或者这两者的结合。软件单元可以存储于随机存取存储器(英文：Random-Access Memory，简称：RAM)、闪存、只读存储器(英文：Read-Only Memory，简称：ROM)、可擦除可编程只读寄存器(英文：Erasable Programmable Read Only Memory，简称，EPROM)、寄存器、硬盘、可移动磁盘、只读光盘(英文：Compact Disc Read-Only Memory，简称：CD-ROM)或本领域中其它任意形式的存储媒介中。示例性地，存储媒介可以与处理器连接，以使得处理器可以从存储媒介中读取信息，并可以向存储媒介存写信息。可选地，存储媒介还可以集成到处理器中。处理器和存储媒介可以设置于ASIC中，ASIC可以设置于终端设备或网络设备中。可选地，处理器和存储媒介也可以是设置于终端设备或网络设备中的不同的部件中。
在一个或多个示例性的设计中，本申请所描述的上述功能可以在硬件、软件、固件或这三者的任意组合来实现。如果在软件中实现，这些功能可以存储与电脑可读的媒介上，或以一个或多个指令或代码形式传输于电脑可读的媒介上。电脑可读媒介包括电脑存储媒介和便于使得让电脑程序从一个地方转移到其它地方的通信媒介。存储媒介可以是任何通用或特殊电脑可以接入访问的可用媒体。例如，这样的电脑可读媒 体可以包括但不限于RAM、ROM、EEPROM、CD-ROM或其它光盘存储、磁盘存储或其它磁性存储装置，或其它任何可以用于承载或存储以指令或数据结构和其它可被通用或特殊电脑、或通用或特殊处理器读取形式的程序代码的媒介。此外，任何连接都可以被适当地定义为电脑可读媒介，例如，如果软件是从一个网站站点、服务器或其它远程资源通过一个同轴电缆、光纤电脑、双绞线、数字用户线(DSL)或以例如红外、无线和微波等无线方式传输的也被包含在所定义的电脑可读媒介中。所述的碟片(disk)和磁盘(disc)包括压缩磁盘、镭射盘、光盘、数字通用光盘(英文：Digital Versatile Disc，简称：DVD)、软盘和蓝光光盘，磁盘通常以磁性复制数据，而碟片通常以激光进行光学复制数据。上述的组合也可以包含在电脑可读媒介中。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述的具体实施方式，对本申请的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本申请的具体实施方式而已，并不用于限定本申请的保护范围，凡在本申请的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本申请的保护范围之内。本申请说明书的上述描述可以使得本领域技术任何可以利用或实现本申请的内容，任何基于所公开内容的修改都应该被认为是本领域显而易见的，本申请所描述的基本原则可以应用到其它变形中而不偏离本申请的发明本质和范围。因此，本申请所公开的内容不仅仅局限于所描述的实施例和设计，还可以扩展到与本申请原则和所公开的新特征一致的最大范围。

Claims (29)

  1. 一种失败处理方法，其特征在于，包括：
    终端设备从辅网络设备接收所述辅网络设备的第一无线资源控制RRC配置；
    所述终端设备向主网络设备发送第一指示信息，所述第一指示信息用于指示所述第一RRC配置失败。
  2. 根据权利要求1所述的方法，其特征在于，所述终端设备向主网络设备发送第一指示信息，包括：
    所述终端设备向所述主网络设备发送第一消息，所述第一消息包括所述第一指示信息。
  3. 根据权利要求1所述的方法，其特征在于，所述终端设备向主网络设备发送第一指示信息，包括：
    若所述终端设备的第一单元接收到所述终端设备的第二单元发送的第二指示信息，所述终端设备向所述主网络设备发送所述第一指示信息，所述第二指示信息用于指示从所述辅网络设备接收的所述第一RRC配置失败，所述第一单元用于控制所述主网络设备与所述终端设备之间的RRC连接，所述第二单元用于控制所述辅网络设备与所述终端设备之间的RRC连接。
  4. 根据权利要求3所述的方法，其特征在于，所述第一单元为第一RRC实体，所述第二单元为第二RRC实体。
  5. 根据权利要求1至4任一所述的方法，其特征在于，所述终端设备从所述辅网络设备接收的新的RRC配置。
  6. 一种失败处理方法，其特征在于，包括：
    终端设备从主网络设备接收辅网络设备的第二RRC配置；
    若所述第二RRC配置失败，所述终端设备向所述主网络设备发送第二消息，所述第二消息用于请求RRC连接重建立。
  7. 根据权利要求6所述的方法，其特征在于，所述方法还包括：
    所述第二消息包括第三指示信息，所述第三指示信息用于指示所述第二RRC配置失败。
  8. 根据权利要求6或7所述的方法，其特征在于，若所述第二RRC配置失败，所述终端设备向所述主网络设备发送第二消息，包括：
    若所述终端设备的第一单元接收到所述终端设备的第二单元发送的第四指示信息，所述终端设备向所述主网络设备发送所述第二消息，所述第四指示信息用于指示从所述主网络设备接收的所述第二RRC配置失败，所述第一单元用于控制所述主网络设备与所述终端设备之间的RRC连接，所述第二单元用于控制所述辅网络设备与所述终端设备之间的RRC连接。
  9. 根据权利要求8所述的方法，其特征在于，所述第一单元为第一RRC实体，所述第二单元为第二RRC实体。
  10. 根据权利要求8或9所述的方法，其特征在于，所述方法还包括：
    所述终端设备从所述主网络设备接收所述主网络设备的第三RRC配置；
    若所述第三RRC配置失败，所述终端设备执行下列动作中的至少一个：
    停止执行所述第二RRC配置、释放所述第二RRC配置、挂起所述辅网络设备下 的无线承载。
  11. 根据权利要求10所述的方法，其特征在于，所述终端设备执行下列动作中的至少一个，包括：
    若所述第二单元接收到所述第一单元发送的第五指示信息，所述终端设备执行下列动作中的至少一个，所述第五指示信息用于所述第三RRC配置失败。
  12. 一种失败处理方法，其特征在于，包括：
    主网络设备从终端设备接收第一指示信息，所述第一指示信息用于指示辅网络设备的第一RRC配置失败，所述第一RRC配置由所述终端设备从所述辅网络设备接收；
    所述主网络设备向所述辅网络设备发送第一请求消息，所述第一请求消息用于请求所述辅网络设备更新RRC配置或请求释放所述辅网络设备。
  13. 根据权利要求12所述的方法，其特征在于，包括：
    所述第一请求消息包含所述第一指示信息。
  14. 一种失败处理方法，其特征在于，包括：
    若辅网络设备的第二RRC配置失败，主网络设备从终端设备接收第二消息，所述第二消息用于指示RRC连接重建立，所述第二RRC配置由所述终端设备从所述主网络设备接收；
    所述主网络设备向所述终端设备发送第六消息，所述第六消息用于重建信令无线承载SRB。
  15. 根据权利要求14所述的方法，其特征在于，所述方法还包括：
    所述第二消息包括第三指示信息，所述指示信息用于指示所述第二RRC配置失败。
  16. 一种切换方法，其特征在于，所述方法包括：
    第一主网络设备向第二主网络设备发送第三消息，所述第三消息用于请求切换，所述第三消息包含所述第一主网络设备与所述辅网络设备之间的能力协商结果；
    所述第一主网络设备接收所述第二主网络设备发送的所述第二主网络设备的配置，所述第二主网络设备的配置与所述能力协商结果有关联。
  17. 根据权利要求16所述的方法，其特征在于，所述能力协商结果包含所述第一主网络设备可用的Layer 2缓存大小和/或所述第一主网络设备可用的频带组合。
  18. 根据权利要求16或17所述的方法，其特征在于，
    所述第一主网络设备接收所述辅网络设备的配置；
    所述第一主网络设备向所述终端设备发送所述第二主网络设备的配置和所述辅网络设备的配置。
  19. 根据权利要求18所述的方法，其特征在于，所述第一主网络设备接收所述辅网络设备的配置，包括：
    所述第一主网络设备从所述第二主网络设备接收所述辅网络设备的配置。
  20. 根据权利要求18或19所述的方法，其特征在于，
    若所述辅网络设备的配置失败，所述第一主网络设备从所述终端设备接收第四消息，所述第四消息用于指示RRC连接重建立。
  21. 一种终端设备，其特征在于，包括存储器和处理器，该存储器用于存储计算机程序，该处理器用于从存储器中调用并运行该计算机程序，使得终端设备执行权利 要求1至5任一所述的失败处理的方法。
  22. 一种终端设备，其特征在于，包括存储器和处理器，该存储器用于存储计算机程序，该处理器用于从存储器中调用并运行该计算机程序，使得终端设备执行权利要求6至11任一所述的失败处理的方法。
  23. 一种网络设备，其特征在于，包括存储器和处理器，该存储器用于存储计算机程序，该处理器用于从存储器中调用并运行该计算机程序，使得网络设备执行权利要求12或13所述的失败处理的方法。
  24. 一种网络设备，其特征在于，包括存储器和处理器，该存储器用于存储计算机程序，该处理器用于从存储器中调用并运行该计算机程序，使得网络设备执行权利要求14或15所述的失败处理的方法。
  25. 一种网络设备，其特征在于，包括存储器和处理器，该存储器用于存储计算机程序，该处理器用于从存储器中调用并运行该计算机程序，使得网络设备执行权利要求16至20任一所述的切换方法。
  26. 一种通信设备，其特征在于，包括第一单元和第二单元；
    若所述第一单元确定终端设备从主网络设备接收的辅网络设备的第三RRC配置失败，则生成第五指示信息，所述第五指示信息用于所述第三RRC配置失败；
    所述第一单元向所述第二单元发送所述第五指示信息；
    其中，所述第一单元用于控制所述主网络设备与所述终端设备之间的RRC连接，所述第二单元用于控制所述辅网络设备与所述终端设备之间的RRC连接。
  27. 一种通信设备，其特征在于，包括第一单元和第二单元；
    所述第二单元向第一单元发送失败指示信息，所述失败指示用于指示终端设备与辅网络设备之间的链路失败；
    所述第一单元接收所述失败指示信息；
    其中，所述第一单元用于控制所述主网络设备与所述终端设备之间的RRC连接，所述第二单元用于控制所述辅网络设备与所述终端设备之间的RRC连接。
  28. 根据权利要求27所述的通信设备，其特征在于，所述失败指示信息具体用于指示下列中的任意一个：
    定时器超时、重传次数超过最大次数、随机接入失败、辅小区组改变失败、秘钥失败、校验失败、完整性保护失败、从辅网络设备接收的辅网络配置失败、从主网络接收的辅网络配置失败。
  29. 根据权利要求26至28任一所述的通信设备，其特征在于，包括：
    所述第一单元为第一RRC实体，所述第二单元为第二RRC实体。
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