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WO2015113254A1 - 一种无线链路失败的处理方法及设备 - Google Patents

一种无线链路失败的处理方法及设备 Download PDF

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Publication number
WO2015113254A1
WO2015113254A1 PCT/CN2014/071768 CN2014071768W WO2015113254A1 WO 2015113254 A1 WO2015113254 A1 WO 2015113254A1 CN 2014071768 W CN2014071768 W CN 2014071768W WO 2015113254 A1 WO2015113254 A1 WO 2015113254A1
Authority
WO
WIPO (PCT)
Prior art keywords
identifier
network device
user equipment
wireless link
cell
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2014/071768
Other languages
English (en)
French (fr)
Inventor
张涛
高永强
蔺波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
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 Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201480000666.5A priority Critical patent/CN105103616A/zh
Priority to MX2016009758A priority patent/MX365152B/es
Priority to BR112016017476A priority patent/BR112016017476A8/pt
Priority to PCT/CN2014/071768 priority patent/WO2015113254A1/zh
Priority to RU2016134752A priority patent/RU2667508C2/ru
Publication of WO2015113254A1 publication Critical patent/WO2015113254A1/zh
Priority to US15/224,227 priority patent/US20160338136A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • H04W36/0079Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/19Connection re-establishment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/06Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a method and a device for processing a radio link failure. Background technique
  • a User Equipment can establish a radio link with one primary base station and one or more secondary base stations at the same time.
  • the UE can establish a wireless link with multiple cells of the primary base station at the same time, and simultaneously establish a wireless link with multiple cells of each secondary base station.
  • the multiple cells of the primary base station that establishes the radio link with the UE belong to the primary cell group (MCG), and the multiple cells of each secondary base station that establishes the radio link with the UE belong to one secondary cell group (Secondary Cell) Group, SCG), that is, the UE can establish a wireless link with one MCG and multiple SCGs at the same time.
  • MCG primary cell group
  • SCG secondary Cell group
  • the reconstruction process includes:
  • S210 The UE sends a reestablishment request message to the primary base station.
  • S220 The primary base station sends a re-establishment message to the UE, where the message may include a Signaling Radio Bearer (SRB) related configuration and a Next Hop Chaining Count (NCC), so that the UE reconstructs according to the SRB-related configuration.
  • SRB Signaling Radio Bearer
  • NCC Next Hop Chaining Count
  • S220 The UE sends a reestablishment complete message to the primary base station, where the message is sent using the reconstructed SRB and the new security key.
  • the above process reconstructs the SRB between the UE and the primary base station and reactivates the security between the UE and the primary base station.
  • the radio link between the UE and the secondary base station fails, and the radio link between the UE and the primary base station does not fail, the SRB reconstruction and the security reactivation between the UE and the primary base station are actually extended.
  • the user data interruption time caused by the failure of the wireless link reduces the user's Use the experience. It can be seen that the existing wireless link failure processing method is not effective, which is not conducive to improving the user experience. Summary of the invention
  • An embodiment of the present invention provides a method and a device for processing a radio link failure, so as to provide an effective solution when a radio link fails between the UE and the secondary base station.
  • the technical solution is as follows:
  • a method for processing a radio link failure is provided, where the method includes: detecting, by a user equipment, whether a radio link established between the user equipment and the second network device fails;
  • the user equipment When detecting that the wireless link established between the user equipment and the second network device fails, the user equipment sends a first message to the first network device, where the first message is used to indicate the user The wireless link established between the device and the second network device fails.
  • the user equipment detects whether a wireless link established between the user equipment and the second network device fails, including:
  • the established wireless link fails, where the first wireless link is any wireless link established between the user equipment and the second network device; or
  • the radio link established between the user equipment and the second network device fails when the timer corresponding to the first cell reaches or exceeds the timer duration, where the first cell is the Any cell of the second network device; or,
  • the radio link fails to be generated, where the first radio bearer is any radio bearer that the second network device serves for the user equipment, and is carried between the user equipment and the second network device. Established on one or more wireless links.
  • the user equipment detects whether a wireless link established between the user equipment and the second network device is Before the failure, it also includes:
  • the configuration parameters including one or more of the following parameters: The maximum number of retransmissions of the random access pilot code, the duration of the timer, and the maximum number of retransmissions of the RLC uplink data; wherein the configuration parameter is used by the first network device from the second network And acquiring, by the device, the user equipment, or the configuration parameter is sent by the second network device to the user equipment.
  • the first message carries The link fails to be associated with the identifier, and the link failure related identifier includes one or more of the following identifiers:
  • the identifier of the cell corresponding to the failed radio link The identifier of the cell corresponding to the failed radio link, the identifier of the secondary cell group SCG to which the cell corresponding to the failed radio link belongs, the identifier of the time-advance group TAG of the cell to which the failed radio link belongs, and the wireless failure The identifier of the bearer corresponding to the link.
  • the first message carries a link failure reason.
  • the link failure reason includes: a random access problem, and a retransmission of a random access pilot code The number of times the maximum number of retransmissions of the random access pilot code is reached or exceeded, the number of retransmissions of the RLC uplink data reaches or exceeds the maximum number of retransmissions of the RLC uplink data, the timer expires, or the reconfiguration fails.
  • the method further includes:
  • an indication message where the indication message is used to indicate that the user equipment releases a cell, a secondary cell group SCG, a time advance group TAG, or a bearer;
  • the cell, SCG, TAG or bearer is released.
  • the releasing the cell, the SCG, the TAG, or the bearer according to the indication message includes: When the indication message does not carry the release identifier, the SCG corresponding to the second network device is released; when the indication message carries the release identifier, the cell, the SCG, the TAG, or the bearer is released according to the release identifier.
  • the releasing the cell, the SCG, the TAG, or the bearer according to the release identifier includes: when the release identifier is an identifier of a cell, and the cell is a secondary cell in the SCG, releasing the cell;
  • release identifier is the identity of the cell and the cell is the primary cell in the SCG, or when the release identifier is an identifier of the SCG, or when the release identifier is an identifier of all cells included in the SCG, release the location Said SCG;
  • release identifier is an identifier of the TAG, releasing the TAG;
  • release identifier is an identifier of a cell in the TAG, releasing the cell controlled by the second network device in the TAG;
  • the second aspect provides a method for processing a radio link failure, where the method includes: detecting, by the second network device, whether a radio link established between the user equipment and the second network device fails;
  • the second network device When the wireless link established between the user equipment and the second network device fails to be detected, the second network device sends a first message to the first network device, where the first message is used to indicate The wireless link established between the user equipment and the second network device fails.
  • the second network device detects whether a radio link established between the user equipment and the second network device fails, including:
  • the wireless link established between the second network device fails, wherein the first wireless link is any wireless link established between the user equipment and the second network device;
  • Determining that the user equipment and the second network device are determined when the second network device detects that the physical downlink control channel PDCCH information reaches or exceeds the PDCCH maximum retransmission number to the user equipment by using the first radio link.
  • the wireless link established between the user equipment and the second network device fails to be established; or
  • the first radio bearer is the second Any wireless bearer that the network device serves for the user equipment, and is carried on one or more wireless links established between the user equipment and the second network device;
  • the wireless link established between the network devices fails, wherein the first wireless link is any wireless link established between the user equipment and the second network device; or
  • the wireless link established between the network devices fails, wherein the first wireless link is any wireless link established between the user equipment and the second network device.
  • the second network device detects a wireless link established between the user equipment and the second network device Before the road fails, it also includes:
  • configuration parameters sent by the first network device where the configuration parameters include one or more of the following parameters:
  • the maximum number of attempts to receive a random access request the maximum number of retransmissions of the PDCCH, the maximum number of retransmissions of the RLC downlink data, the preset error block rate, and the preset error rate.
  • the first message carrying The identifier of the user equipment, and the link failure related identifier, and the link failure related identifier includes one or more of the following identifiers:
  • the identifier of the cell corresponding to the failed radio link The identifier of the cell corresponding to the failed radio link, the identifier of the secondary cell group SCG to which the cell corresponding to the failed radio link belongs, the identifier of the time-advance group TAG of the cell to which the failed radio link belongs, and the wireless failure The identifier of the bearer corresponding to the link.
  • the first message carries a link failure reason.
  • the link failure reason includes: a random access problem, and a time of receiving a random access request The number of times the number of attempts to receive a random access request is reached or exceeded, the number of retransmissions of the PDCCH reaches or exceeds the maximum number of retransmissions of the PDCCH, the number of retransmissions of the RLC downlink data reaches or exceeds the maximum number of retransmissions of the RLC downlink data, and the error block of the uplink data The rate meets or exceeds the preset error block rate, the error rate of the uplink data reaches or exceeds the preset error rate, the uplink reception problem, or the downlink transmission problem.
  • the method further includes:
  • the releasing, by the indication message, the resource that is served by the user equipment includes: When the indication message includes the identifier of the user equipment, release the resource serving the user equipment; or,
  • the indication message includes the identifier of the user equipment and the identifier of the cell, releasing resources of the cell served by the user equipment;
  • the indication message includes the identifier of the user equipment and the identifier of the TAG, releasing the resource of the TAG served by the user equipment;
  • the indication message includes the identifier of the user equipment and the identifier of the cell in the TAG, releasing, by the TAG, the resource of the cell controlled by the second network device that is served by the user equipment; Or,
  • the indication message includes the identifier of the user equipment and the identifier of the bearer
  • the resource of the bearer service of the user equipment is released.
  • a method for processing a radio link failure includes: receiving, by a first network device, a first message, where the first message is a radio link established between a user equipment and a second network device When the failure occurs, the user equipment or the second network device reports to the first network device;
  • the first message carries a link failure related identifier
  • the link failure related identifier includes one of the following identifiers or fails The identifier of the cell corresponding to the radio link, the identifier of the secondary cell group SCG to which the cell corresponding to the failed radio link belongs, the identifier of the time-advance group TAG of the cell to which the failed radio link belongs, and the radio link corresponding to the failure The logo of the load.
  • the first message further carries an identifier of the user equipment.
  • the first possible implementation manner of the third aspect, or the second possible implementation manner of the third aspect, in a third possible implementation manner of the foregoing third aspect the first message carrying The reason for the link failure.
  • the link failure reason includes: a random access problem, and a retransmission of a random access pilot code The number of times the RLC uplink data is retransmitted, the number of RLC uplink data retransmissions reaches or exceeds the maximum number of RLC uplink data retransmissions, the timer expires, the reconfiguration fails, and the number of times the random access request is received reaches or exceeds the attempted random reception.
  • the block rate and the error rate of the uplink data meet or exceed the preset error rate, the uplink reception problem, or the downlink transmission problem.
  • the first network device determines, according to the first message, that a wireless link established between the user equipment and the second network device occurs. After the failure, the method further includes: sending, by using the first message, the second message to the user equipment, where the second message is used to indicate that the user equipment releases the cell, the secondary cell group SCG, the time advance group TAG, or the bearer; Or, the third message is sent to the second network device according to the first message, where the third message is used to instruct the second network device to release resources serving the user equipment.
  • the sending, by the first message, the second message to the user equipment includes: The first message does not carry a link failure correlation identifier, and the identifier of the SCG to which the cell corresponding to the failed radio link belongs, the identifier of the cell included in the SCG, and the SCG include The identifier of the primary cell, or the identifier of the bearer served by the SCG, is determined as a first release identifier; if the first message carries a link failure related identifier, the first release identifier is determined according to the link failure correlation identifier;
  • the determining, by the link failure related identifier, the first release identifier includes:
  • the link failure correlation identifier includes the identifier of the cell corresponding to the failed radio link, determining the identifier of the cell as the first release identifier;
  • the link failure correlation identifier includes the identifier of the SCG to which the cell corresponding to the failed radio link belongs, the identifier of the SCG, the identifier of the cell included in the SCG, or the identifier of the primary cell included in the SCG
  • the identifier of the bearer served by the SCG is determined as the first release identifier; or, when the link failure correlation identifier includes the identifier of the TAG to which the cell corresponding to the failed radio link belongs, the identifier of the TAG or the TAG
  • the identifier of the included cell is determined to be the first release identifier ⁇ or,
  • the link failure correlation identifier includes an identifier of a bearer corresponding to the failed radio link, an identifier of the SCG serving the bearer, an identifier of a cell included in the SCG, an identifier of a primary cell included in the SCG, or The identifier of the bearer served by the SCG is determined as the first release identifier.
  • the sending, by the first message, the third message to the second network device includes: If the first message does not carry the link failure related identifier, the identifier of the user equipment is determined as the second release identifier;
  • the first message carries a link failure correlation identifier, determining a second release identifier according to the link failure correlation identifier;
  • the determining, by the link failure related identifier, the second release identifier includes:
  • the link failure correlation identifier includes the identifier of the cell corresponding to the failed radio link, the identifier of the user equipment and the identifier of the cell are determined as the second release identifier; or
  • the link failure correlation identifier includes the identifier of the SCG to which the cell corresponding to the failed radio link belongs, the identifier of the user equipment is determined as the second release identifier; or
  • the link failure correlation identifier includes the identifier of the TAG to which the cell corresponding to the failed radio link belongs, the identifier of the user equipment and the identifier of the TAG are determined as the second release identifier, or the user equipment is The identifier and the identifier of the cell included in the TAG are determined as a second release identifier; or
  • the link failure correlation identifier includes the identifier of the bearer corresponding to the failed wireless link, determining the identifier of the user equipment as the second release identifier, or identifying the user equipment and serving the SCG of the bearer
  • the identity of the served bearer is determined to be the second release identity.
  • the method before the receiving the first message, the method further includes:
  • the first configuration parameter includes one or more of the following parameters: a maximum number of retransmissions of the random access pilot code, a timer duration, and a radio link control RLC uplink data. Maximum number of retransmissions; and/or
  • the second configuration parameter includes one or more of the following parameters: a maximum number of attempts to receive a random access request, a maximum number of retransmissions of a physical downlink control channel PDCCH, and an RLC The maximum number of retransmissions of the downlink data, the preset error block rate, and the preset error rate.
  • the fourth aspect provides a processing device for the radio link failure, which is located on the user equipment side, where the device includes:
  • a detecting unit configured to detect whether a wireless link established between the user equipment and the second network device fails
  • a sending unit configured to send, to the first network device, a first message, when the detecting unit detects that the wireless link established between the user equipment and the second network device fails, the first message is used to indicate The wireless link established between the user equipment and the second network device fails.
  • the detecting unit is specifically configured to:
  • the established wireless link fails, where the first wireless link is any wireless link established between the user equipment and the second network device; or
  • the radio link established between the device and the second network device fails, where the first cell is any cell of the second network device; or
  • the link fails to be generated, where the first radio bearer is any radio bearer that the second network device serves for the user equipment, and is carried between the user equipment and the second network device.
  • the first radio bearer is any radio bearer that the second network device serves for the user equipment, and is carried between the user equipment and the second network device.
  • the method further includes:
  • a receiving unit configured to receive configuration parameters, where the configuration parameters include one or more of the following parameters:
  • the first message carrying The link failure correlation identifier, and the link failure correlation identifier includes one or more of the following identifiers: an identifier of a cell corresponding to the failed radio link, and a secondary cell group SCG to which the cell corresponding to the failed radio link belongs The identifier of the time-advance group TAG of the cell to which the failed radio link belongs and the identifier of the radio link corresponding to the failed radio link.
  • the first message carries a link failure reason.
  • the link failure reason includes: a random access problem, and a retransmission of a random access pilot code The number of times the maximum number of retransmissions of the random access pilot code is reached or exceeded, the number of retransmissions of the RLC uplink data reaches or exceeds the maximum number of retransmissions of the RLC uplink data, the timer expires, or the reconfiguration fails.
  • the receiving unit is further configured to receive an indication message that is sent by the first network device, where the indication message is used to indicate that the user equipment releases a cell, a secondary cell group SCG, a time advance group TAG, or a bearer;
  • the device further includes:
  • a releasing unit configured to release the cell, the SCG, the TAG, or the bearer according to the indication message.
  • the releasing unit is specifically configured to:
  • the SCG corresponding to the second network device is released; when the indication message carries the release identifier, the cell, the SCG, the TAG, or the bearer is released according to the release identifier.
  • the release unit when the indication message carries a release identifier, the release unit is specifically configured to:
  • the release identifier is an identifier of a cell and the cell is a secondary cell in the SCG, releasing the cell;
  • the release identifier is an identifier of a cell and the cell is a primary cell in the SCG, or the identifier of the release identifier is an SCG, or when the release identifier is an identifier of all cells included in the SCG, release the SCG;
  • release identifier is an identifier of the TAG, releasing the TAG;
  • release identifier is an identifier of a cell in the TAG
  • the release identifier is an identifier of a bearer served by the SCG
  • the bearer served by the SCG is released.
  • the fifth aspect provides a device for detecting a radio link failure, where the device is located on a second network device side, where the device includes:
  • a detecting unit configured to detect whether a wireless link established between the user equipment and the second network device fails
  • An interface unit configured to: when the detecting unit detects that the wireless link established between the user equipment and the second network device fails, send a first message to the first network device, where the first message is used to indicate The wireless link established between the user equipment and the second network device fails.
  • the detecting unit is specifically configured to:
  • the second network device When detecting that the second network device attempts to receive the user equipment by using the first wireless link Determining that a wireless link established between the user equipment and the second network device fails when the number of random access requests sent reaches or exceeds a maximum number of attempts to receive a random access request, where the first wireless The link is any wireless link established between the user equipment and the second network device; or
  • the second network device Determining that the user equipment and the second network device are determined when the second network device detects that the physical downlink control channel PDCCH information reaches or exceeds the PDCCH maximum retransmission number to the user equipment by using the first radio link.
  • the established wireless link fails, wherein the first wireless link is any wireless link established between the user equipment and the second network device; or, when the second network device is detected Determining that the radio link established between the user equipment and the second network device fails when the number of times the RLC downlink data is controlled by the first radio bearer retransmission radio link reaches or exceeds the maximum number of retransmissions of the RLC downlink data, where
  • the first radio bearer is any radio bearer that the second network device serves for the user equipment, and is carried on one or more wireless links established between the user equipment and the second network device. ; or,
  • Determining the user equipment and the second network device when detecting that a block error rate of the uplink data sent by the user equipment received by the second network device by the first wireless link is greater than or equal to a preset error block rate The wireless link established between the user equipment and the second network device fails to be established, or the first wireless link is any wireless link established between the user equipment and the second network device;
  • the established wireless link fails, wherein the first wireless link is any wireless link established between the user equipment and the second network device.
  • the interface unit is further configured to receive configuration parameters that are sent by the first network device, where the configuration
  • the parameters include one or more of the following parameters:
  • the maximum number of attempts to receive a random access request the maximum number of retransmissions of the PDCCH, the maximum number of retransmissions of the RLC downlink data, the preset error block rate, and the preset error rate.
  • the first message carrying The identifier of the user equipment, and the link failure related identifier, and the link failure related identifier includes one or more of the following identifiers:
  • the identifier of the cell corresponding to the failed wireless link and the cell corresponding to the failed wireless link The identifier of the secondary cell group SCG, the identifier of the time-advance group TAG of the cell to which the failed radio link belongs, and the identifier of the radio link corresponding to the failed radio link.
  • the first message carries a link failure reason.
  • the link failure reason includes: a random access problem, a number of times of receiving a random access request, or The maximum number of attempts to receive a random access request, the number of retransmissions of the PDCCH reaching or exceeding the maximum number of PDCCH retransmissions, the number of retransmissions of the RLC downlink data reaching or exceeding the maximum number of retransmissions of the RLC downlink data, or the error block rate of the uplink data is reached or Exceeding the preset error block rate, the error rate of the uplink data meets or exceeds the preset error rate, the uplink reception problem, or the downlink transmission problem.
  • the interface unit is further configured to receive an indication message sent by the first network device, where The indication message is used to indicate that the second network device releases the resource serving the user equipment; and the device further includes:
  • a releasing unit configured to release a resource serving the user equipment according to the indication message.
  • the releasing unit is specifically configured to:
  • the indication message includes an identifier of the user equipment, releasing a resource serving the user equipment;
  • the indication message includes the identifier of the user equipment and the identifier of the cell, releasing resources of the cell served by the user equipment;
  • the indication message includes the identifier of the user equipment and the identifier of the TAG, releasing the resource of the TAG served by the user equipment;
  • the indication message includes the identifier of the user equipment and the identifier of the cell that the TAG includes, releasing the resource of the cell controlled by the second network device that is included in the TAG that is served by the user equipment;
  • a processing device for a radio link failure where the device is located on a first network device side, and the device includes:
  • a transceiver unit configured to communicate with a user equipment
  • An interface unit configured to communicate with the second network device
  • An acquiring unit configured to acquire, by using the transceiver unit or the interface unit, a first message from the user equipment or the second network device, where the first message is established between the user equipment and the second network device When the wireless link fails, the user equipment or the second network device reports to the first network device;
  • a determining unit configured to determine, according to the first message, that a wireless link established between the user equipment and the second network device fails.
  • the first message carries a link failure related identifier
  • the link failure related identifier includes one of the following identifiers or fails The identifier of the cell corresponding to the radio link, the identifier of the secondary cell group SCG to which the cell corresponding to the failed radio link belongs, the identifier of the time-advance group TAG of the cell to which the failed radio link belongs, and the radio link corresponding to the failure The logo of the load.
  • the first message further carries an identifier of the user equipment.
  • the first possible implementation manner of the sixth aspect, or the second possible implementation manner of the sixth aspect, in a third possible implementation manner of the foregoing sixth aspect the first message carrying The reason for the link failure.
  • the link failure reason includes: a random access problem, and a retransmission of a random access pilot code The number of times the RLC uplink data is retransmitted, the number of RLC uplink data retransmissions reaches or exceeds the maximum number of RLC uplink data retransmissions, the timer expires, the reconfiguration fails, and the number of times the random access request is received reaches or exceeds the attempted random reception.
  • the block rate and the error rate of the uplink data meet or exceed the preset error rate, the uplink reception problem, or the downlink transmission problem.
  • the determining unit is further configured to: after determining that a radio link established between the user equipment and the second network device fails :
  • the unit sends a third message to the second network device, where the third message is used to instruct the second network device to release resources serving the user equipment.
  • the determining unit is further configured to trigger the sending and receiving unit to send the first to the user equipment Release the second message of the identity, where:
  • the first release identifier When the first message does not carry the link failure related identifier, the first release identifier includes an identifier of the SCG to which the cell corresponding to the failed radio link belongs, an identifier of the cell included in the SCG, and the SCG The identifier of the included primary cell, or the identifier of the bearer served by the SCG; or when the first message carries the link failure related identifier, the first release identifier is determined according to the link failure correlation identifier .
  • the link failure correlation identifier includes an identifier of a cell corresponding to the failed radio link
  • the first release identifier includes an identifier of the cell
  • the first release identifier includes an identifier of the SCG, an identifier of a cell included in the SCG, and the SCG includes The identifier of the primary cell or the identifier of the bearer served by the SCG; or, when the link failure correlation identifier includes the identifier of the TAG to which the cell corresponding to the failed radio link belongs, the first release identifier includes the TAG Identification or the identity of the cell contained in the TAG ⁇ or,
  • the link failure correlation identifier includes the identifier of the bearer corresponding to the failed radio link
  • the first release identifier includes an identifier of the SCG serving the bearer, an identifier of the cell included in the SCG, and the SCG includes The identity of the primary cell or the identity of the bearer served by the SCG.
  • the determining unit is further configured to trigger the interface unit to send the carrying to the second network device a third message of the second release identifier, wherein: When the first message does not carry the link failure related identifier, the second release identifier includes an identifier of the user equipment; or
  • the second release identifier is determined according to the link failure correlation identifier.
  • the link failure correlation identifier includes an identifier of a cell corresponding to the failed radio link
  • the second release identifier includes an identifier of the user equipment and an identifier of the cell
  • the link failure correlation identifier includes an identifier of the SCG to which the cell corresponding to the failed radio link belongs
  • the second release identifier includes an identifier of the user equipment
  • the second release identifier includes the identifier of the user equipment and the identifier of the TAG, or includes the user equipment. Identifying and identifying the identity of the cell included in the TAG; or
  • the second release identifier includes the identifier of the user equipment, or includes the identifier of the user equipment and the SCG that serves the bearer. The identity of the served bearer.
  • the transceiver unit is further configured to:
  • the first configuration parameter includes one or more of the following parameters: a maximum number of retransmissions of the random access pilot code, a timer duration, and a radio link control RLC uplink data. Maximum number of retransmissions; and/or
  • the second configuration parameter includes one or more of the following parameters: a maximum number of attempts to receive a random access request, a maximum number of retransmissions of a physical downlink control channel PDCCH, and an RLC The maximum number of retransmissions of the downlink data, the preset error block rate, and the preset error rate.
  • the message is reported to the primary base station to notify the primary base station that a wireless link occurs between the UE and the secondary base station.
  • the primary base station is made aware that the radio link failure occurs between the UE and the secondary base station, so unnecessary operations such as SRB reconstruction and secure reactivation may not be performed.
  • the primary base station may further process the radio link failure, for example, releasing the secondary base station and/or the UE.
  • the related resources enable the secondary base station to re-allocate resources for the UE as early as possible, effectively shortening the interruption of user data caused by the failure of the wireless link, and improving the user experience.
  • FIG. 1 is a schematic diagram of a network deployment structure provided by the prior art
  • FIG. 2 is a flow chart of a method for processing a wireless link provided by the prior art
  • FIG. 3 is a flowchart of a method for processing a radio link failure according to Embodiment 1 of the present invention
  • FIG. 4 is a flowchart of another method for processing radio link failure according to Embodiment 1 of the present invention
  • FIG. 6 is a flowchart of a method for processing a radio link failure according to Embodiment 3 of the present invention
  • FIG. 7 is a flowchart of a method for processing a radio link failure according to Embodiment 3 of the present invention
  • FIG. 8 is a flowchart of a method for processing a radio link failure according to Embodiment 4 of the present invention
  • FIG. 9 is a radio link failure according to Embodiment 5 of the present invention
  • FIG. 10 is a schematic structural diagram of another apparatus for wireless link failure processing according to Embodiment 5 of the present invention
  • FIG. 10 is a schematic structural diagram of another apparatus for wireless link failure processing according to Embodiment 5
  • FIG. 11 is a schematic structural diagram of a processing apparatus for a radio link failure according to Embodiment 6 of the present invention
  • FIG. 12 is a schematic structural diagram of another apparatus for processing a radio link failure according to Embodiment 6 of the present invention
  • FIG. 13 is a schematic structural diagram of a processing apparatus for a radio link failure according to Embodiment 7 of the present invention
  • FIG. 14 is a schematic structural diagram of a user equipment according to Embodiment 8 of the present invention
  • FIG. 15 is a schematic structural diagram of a first network device according to Embodiment 9 of the present invention
  • FIG. 16 is a schematic structural diagram of a second network device according to Embodiment 10 of the present invention. detailed description
  • the embodiment of the present invention generates wireless between the UE and the secondary base station.
  • the radio link may be reported to the primary base station, so that the primary base station knows that the radio link failure occurs between the UE and the secondary base station, so that the SRB reconstruction and the secure reactivation may not be performed.
  • the necessary operations Effectively shortens the user data interruption time caused by the failure of the wireless link, and improves the user experience.
  • the primary base station may further process the radio link failure, for example, release the related resources of the secondary base station and/or the UE, so that the secondary base station re-allocates resources for the UE as soon as possible, further shortening the user data caused by the wireless link failure. Interruption time increases the user experience.
  • the network device in the following embodiments may be a network node capable of communicating with the user equipment, including a base station (BS), a base station B (Node B), an eNB (evolved Node B, an evolved base station;), and WiFi access. Point and so on.
  • BS base station
  • Node B base station B
  • eNB evolved Node B
  • WiFi access Point and so on.
  • the user equipment may be a mobile communication terminal, including a cellular phone, a personal digital assistant (PDA), a wireless modem, a handheld, a laptop computer, a cordless telephone. (cordless phone) and so on.
  • a mobile communication terminal including a cellular phone, a personal digital assistant (PDA), a wireless modem, a handheld, a laptop computer, a cordless telephone. (cordless phone) and so on.
  • PDA personal digital assistant
  • wireless modem a handheld, a laptop computer, a cordless telephone. (cordless phone) and so on.
  • FIG. 3 is a flowchart of a method for processing a radio link failure according to an embodiment of the present invention. As shown in FIG. 3 , the method includes:
  • the UE detects whether a radio link failure occurs between the UE and the second network device. That is, the UE detects whether the radio link established between the UE and the second network device fails, when the UE and the second network device fail.
  • a radio link is established between multiple cells, if any radio link fails, a radio link failure occurs between the UE and the second network device (ie, the UE and the second network)
  • the wireless link established between the devices fails. If a certain radio link fails, the radio link fails between the UE and the second network device (that is, the UE).
  • the wireless link established with the second network device has failed).
  • S302 Send a first message to the first network device, where the first message is used to indicate the user equipment and the second network device, when a radio link failure occurs between the UE and the second network device.
  • a radio link failure has occurred between. That is, when it is detected that the radio link established between the UE and the second network device fails, the first message is sent to the first network device, where the first message is used to indicate the user equipment and the second network.
  • the wireless link established between the devices fails, or the first message is used to indicate that the wireless link failure between the user equipment and the second network device fails.
  • the first network device refers to the primary base station
  • the second network device refers to the secondary base station.
  • the radio link may be reported to the primary base station, so that the primary base station knows that the radio link failure occurs between the UE and the secondary base station, so Perform unnecessary operations such as SRB reconstruction and secure reactivation.
  • the primary base station may further process the failure of the radio link, for example, releasing related resources of the secondary base station and/or the UE, so that the secondary base station re-allocates resources for the UE as soon as possible, effectively shortening the user caused by the failure of the wireless link.
  • the data interruption time improves the user experience.
  • the step S301 that is, the step of detecting, by the UE, whether the radio link fails between the UE and the second network device may be implemented in the following manner:
  • the user equipment when detecting that the number of times the user equipment retransmits the random access request by using the first wireless link reaches or exceeds the maximum number of retransmissions of the random access pilot code, determining the user equipment and the second network.
  • the wireless link established between the devices fails.
  • the first wireless link is any wireless link established between the user equipment and the second network device.
  • the UE can establish a wireless link with multiple cells controlled by the second network device, that is, the UE can establish multiple wireless links with the second network device.
  • the UE sends a random access request to the second network device by using a wireless link established between the UE and the cell controlled by the second network device, if the random access request fails to be sent, the UE re-passes the wireless chain.
  • the path sends the random access request to the second network device, and counts the number of times the UE repeatedly sends the random access request to the second network device by using the wireless link (hereinafter referred to as the first number of times).
  • the first number of times reaches or exceeds the maximum number of retransmissions of the random access pilot code, the UE determines that the wireless link fails. Otherwise, the UE determines that the wireless link does not fail.
  • the second network device can control multiple cells, so the UE can establish a wireless link with multiple cells controlled by the second network device, that is, the UE can establish multiple wireless links with the second network device.
  • the UE may set a timer for all cells or a part of cells in the second network device, and may set a timer for each cell, and the timer durations of different cells may be the same or different.
  • the UE detects that the downlink signal quality of a cell controlled by the second network device is less than or equal to a preset quality threshold, the UE starts the corresponding timer. If the downlink signal quality of the cell is not detected to be greater than a preset quality threshold within the duration of the timer, the downlink signal quality of the cell is detected.
  • the radio link established between the UE and the cell fails. If it is detected that the downlink signal quality of the cell is greater than the preset quality threshold within the timing of the timer, the timer is stopped, and it is determined that the wireless link established between the UE and the cell does not fail.
  • the first radio bearer is any radio bearer that the second network device serves for the user equipment, and is carried by the user equipment and the On one or more wireless links established between the second network devices.
  • the UE can establish a wireless link with multiple cells controlled by the second network device, that is, the UE can establish multiple wireless links with the second network device.
  • the UE sends the RLC uplink data to the second network device by using the radio bearer (RB) established with the second network device, if the RLC uplink data transmission fails, the user equipment re-passes the RB to the
  • the second network device sends the RLC uplink data, and counts the number of times the UE repeatedly transmits the RLC uplink data to the second network device by using the RB (hereinafter referred to as a second number of times).
  • the radio link carrying the RB between the UE and the second network device fails, otherwise, determining that the RB is carried between the UE and the second network device The wireless link did not fail.
  • the maximum number of retransmissions of the random access pilot code, the timer duration, and the maximum number of retransmissions of the RLC uplink data may be obtained by the first network device from the second network device and sent to the UE. ; can also be directly sent to the UE by the second network device. This will be described in detail in the second embodiment, and will not be described again.
  • the foregoing first message may be a newly added message, or a specially set message.
  • the primary base station receives the message, according to the name of the message, it can be known that the wireless occurs between the UE and the secondary base station. The link failed.
  • the first message may also be a newly added cell in the existing message, or a specially set cell.
  • the primary base station receives the first message, according to whether the newly added cell is included in the first message. It can be known that a radio link failure has occurred between the UE and the secondary base station.
  • the first message may carry a link failure related identifier
  • the link failure related identifier may include one or more of the following identifiers:
  • the identifier of the cell corresponding to the failed wireless link and the cell corresponding to the failed wireless link The identifier of the secondary cell group SCG, the identifier of the time-advance group TAG of the cell to which the failed radio link belongs, and the identifier of the radio link corresponding to the failed radio link.
  • the primary base station can determine the release of the related resources of the secondary base station and/or the UE according to the link failure correlation identifier, so that the secondary base station re-allocates the resources for the UE as soon as possible, further shortening the user data interruption time caused by the wireless link failure, and improving The user experience. This will be described in detail in the second embodiment, and details are not described herein again.
  • the first message may also not carry the above link failure correlation identifier.
  • the primary base station may avoid SRB reconstruction and security according to the first message when the radio link failure occurs between the secondary base station and the UE. Re-activation and other unnecessary operations without further processing.
  • the UE has only one secondary base station serving the same, the related resources of the secondary base station and/or the UE may also be released according to the first message.
  • the first message may carry a link failure reason.
  • the link failure-related identifier or the link failure reason may be carried, and the link failure-related identifier and the link failure reason may be carried at the same time.
  • the primary base station can more accurately locate the cause of the failure, thereby being able to recover from the failure with minimal cost.
  • the reason for the failure of the above link may include: a random access problem, the number of retransmissions of the random access pilot code reaches the maximum number of retransmissions of the random access pilot code, and the number of retransmissions of the RLC uplink data reaches the maximum retransmission of the RLC uplink data. The number of times, timer timeout, or reconfiguration failed.
  • the primary base station may notify the secondary base station and/or the UE to release related resources, so that the secondary base station re-allocates resources for the UE as soon as possible, so as to shorten
  • the interruption of user data caused by the failure of the wireless link improves the user experience.
  • the primary base station sends a second message to the UE according to the first message, where the second message is used to instruct the user equipment to release the cell, the SCG, and the time advance group (Timing Advance Group). , TAG ) or bear.
  • the processing method for the above radio link failure may further include:
  • S303 Receive a second message sent by the first network device, where the second message is used to indicate that the UE releases the cell, the SCG, the TAG, or the bearer.
  • S304 Release the cell, the SCG, the TAG, or the bearer according to the second message.
  • step S304 when the second message does not carry the release identifier, it can be considered that all the wireless links established between the UE and the second network device cannot be used normally, and the UE can release Put the SCG corresponding to the second network device.
  • the operations of the UE releasing the SCG corresponding to the second network device may include the following first to third cases:
  • release the RB served by the SCG if an RB is only served by the SCG, release the RB, that is, release the Packet Data Convergence Protocol (PDCP) entity associated with the RB, and the RLC entity and a logical channel; if an RB is served by both the MCG and the SCG, releasing the part of the RB that is served by the SCG, that is, releasing the RLC entity associated with the RB and the RLC entity and the logical channel corresponding to the SCG in the logical channel;
  • PDCP Packet Data Convergence Protocol
  • an RB when an RB is served by only one SCG, there is a PDCP entity, an RLC entity, and a logical channel associated with the RB, and the PDCP entity, the RLC entity, and the logical channel are all associated with the SCG. correspond.
  • one RB is simultaneously served by the MCG and the SCG, there is one PDCP entity, two RLC entities and two logical channels associated with the RB, one of the RLC entities and one logical channel corresponding to the SCG, and the remaining one of the RLC entities Corresponds to the remaining one logical channel and MCG.
  • the user equipment has a MAC entity corresponding to the MCG, and further has one or more MAC entities, which respectively correspond to one SCG.
  • the cell included in the SCG is released.
  • the UE may further re-establish a wireless link established between the cells included in the SCG corresponding to the second network device. Therefore, compared with the prior art, the establishment of the wireless link can be started as early as possible to further shorten the user data interruption time caused by the failure of the wireless link, thereby improving the user experience.
  • step S304 when the second message carries the release identifier, the cell, the SCG, the TAG, or the bearer is released according to the release identifier.
  • the cell when the identifier of the cell is released and the cell is a secondary cell in the SCG, the cell is released; when the identity of the cell is released and the cell is the primary cell in the SCG, or the identifier of the SCG is released, or when Release the identifier of all cells included in the SCG, release the SCG; release the TAG when the identifier of the TAG is released; release the cell included in the TAG when the identifier of the cell in the TAG is released; or when the release identifier is The identifier of the bearer served by the SCG releases the bearer served by the SCG.
  • a cell included in a TAG may be a cell controlled by one network device, or may be multiple networks.
  • the cell controlled by the network device may be controlled by the network device.
  • the specific operation of releasing the cell included in the TAG may be: when the TAG includes a cell controlled by one network device, all cells included in the TAG are directly released.
  • the cell controlled by the second network device is selected from the cells included in the TAG, and the selected cell is released.
  • the specific operations for releasing the bearer served by the SCG may be:
  • the identifier of the bearer served by the SCG is the identifier of the RB
  • the RB is released, that is, the PDCP entity associated with the RB, the RLC entity and the logical channel are released;
  • the part of the bearer served by the SCG is released, that is, the RLC entity associated with the bearer and the RLC entity and the logical channel corresponding to the SCG in the logical channel are released.
  • the identifier of the 7-carrier served by the SCG is the identifier of the E-UTRAN Radio Access Bearer (E-RAB)
  • E-RAB E-UTRAN Radio Access Bearer
  • the user equipment according to the identifier of the E-RAB, from the stored RB
  • the identifier of the corresponding RB is obtained in the correspondence between the identifier and the identifier of the E-RAB.
  • the RB is released, that is, the PDCP entity associated with the RB, the RLC entity and the logical channel are released; when the RB is simultaneously served by the MCG and the SCG, the bearer is released.
  • the part served by the SCG that is, the RLC entity associated with the bearer and the RLC entity and logical channel corresponding to the SCG in the logical channel are released.
  • the user equipment when the user equipment detects that the radio link fails between the self and the secondary base station, the user equipment reports a message to the primary base station to notify the primary base station that a wireless link failure has occurred between the UE and the secondary base station.
  • the primary base station is made aware that the radio link failure occurs between the UE and the secondary base station, so unnecessary operations such as SRB reconstruction and secure reactivation may not be performed.
  • the primary base station may further process the radio link failure, for example, releasing related resources of the secondary base station and/or the UE, so that the secondary base station re-allocates resources for the UE as soon as possible, effectively shortening the user caused by the wireless link failure.
  • the data interruption time improves the user experience.
  • Embodiment 2 The process of further processing after the primary base station learns that the radio link fails between the UE and the secondary base station is described below in conjunction with the second embodiment.
  • Embodiment 2 The process of further processing after the primary base station learns that the radio link fails between the UE and the secondary base station is described below in conjunction with the second embodiment.
  • FIG. 5 is a signaling flow diagram of another method for processing a radio link failure according to an embodiment of the present invention.
  • the first network device is a primary base station
  • the second network device is a secondary base station.
  • the method includes: S501:
  • the second network device sends a configuration parameter to the first network device, where the configuration parameter includes one or more of the following parameters: a maximum number of retransmissions of the random access pilot code, a maximum number of retransmissions of the RLC uplink data, and a timer. duration;
  • the timer can be a T310 timer.
  • the first network device receives the configuration parameter sent by the second network device, and sends the configuration parameter to the UE.
  • the first configuration device can generate a radio resource control (RRC) message for the UE, and the foregoing configuration parameters can be transmitted through the RRC message.
  • RRC radio resource control
  • the embodiment of the present invention does not perform any message transmission format.
  • the restriction may also be transmitted by other message processes between the first network device and the second network device.
  • the configuration parameter sent by the first network device to the UE may carry all the parameters or some parameters of the configuration parameters sent by the second network device to the first network device, and the embodiment of the present invention does not impose any restrictions.
  • step S501 may be omitted, that is, the first network device may configure the configuration parameters sent to the UE by itself without acquiring from the second network device.
  • the first network device may also instruct the second network device to directly send the above configuration parameters to the UE without sending through the first network device.
  • the embodiments of the present invention do not impose any restrictions on the source of configuration parameters. .
  • the UE receives the configuration parameter sent by the first network device, and detects, according to the received configuration parameter, whether the wireless link established between the user equipment and the second network device fails.
  • the configuration parameter may carry random access.
  • the first, second, and third types of the following may be adopted by the UE according to any one of the parameters of the maximum number of retransmissions of the pilot code, the maximum number of retransmissions of the RLC uplink data, and the duration of the timer. The case corresponding to the parameter determines whether the wireless link established between the UE and the second network device fails.
  • the UE can establish a wireless link with multiple cells controlled by the second network device, that is, the UE can establish multiple wireless links with the second network device.
  • the UE when the configuration parameter received by the UE carries the maximum number of retransmissions of the random access pilot code, when the UE sends the radio link established between the cell controlled by the second network device to the second network device, If the random access request fails to be sent, the UE resends the random access request to the second network device by using the wireless link, and counts the first number of times, the first time The number is the number of times the UE repeatedly sends the random access request to the second network device over the wireless link. If the first number is greater than or equal to the maximum number of retransmissions of the random access pilot code, the UE determines that the radio link fails. Otherwise, the UE determines that the radio link does not fail.
  • the UE When the configuration parameter received by the UE carries the duration of the timer, when the UE detects that the downlink signal quality of a cell controlled by the second network device is less than or equal to a preset quality threshold, the UE starts the timing. Device. If the downlink signal quality of the cell is not greater than the preset quality threshold, that is, the downlink signal quality of the cell is always less than or equal to the preset quality threshold, the UE is determined to be The radio link established between the cells fails. If it is detected that the downlink signal quality of the cell is greater than the preset quality threshold within the timing of the timer, the timer is stopped, and it is determined that the wireless link established between the UE and the cell does not fail.
  • the UE when the configuration parameter received by the UE carries the maximum number of retransmissions of the RLC uplink data, the UE sends the RLC uplink data to the second network device by using a radio bearer (RB) established between the UE and the second network device. If the RLC uplink data transmission fails, the UE retransmits the RLC uplink data to the second network device by using the RB, and collects the second number of times, where the second time is that the UE repeats to the second network device by using the RB. The number of times the RLC uplink data is sent.
  • RB radio bearer
  • the radio link carrying the RB between the UE and the second network device fails, otherwise determining that the UE and the second network device The radio link carrying the RB did not fail.
  • the first parameter may be adopted according to any one of the parameters carried in the configuration parameter.
  • the second and third corresponding to the parameter determine whether the wireless link established between the user equipment and the second network device fails.
  • the reason for the failure of the radio link established between the UE and the second network device is as follows: the random access problem and the reconfiguration failure.
  • the random access problem may include the number of retransmissions of the random access pilot code reaching the maximum number of retransmissions of the random access pilot code.
  • the reconfiguration failure may occur when: when the first network device sends the configuration parameter to the UE, if the UE cannot accept the configuration parameter, the UE determines that the reconfiguration failure occurs, and further determines that it is between the second network device and the second network device. The established wireless link failed.
  • S504 When the UE detects that the radio link established between the self and the second network device fails, the UE sends a first message to the first network device, where the first message is used to indicate the UE and the second network.
  • the wireless link established between the network devices fails;
  • the UE may send the first message to the first network device by using a wireless link established with the first base station.
  • the UE may further send the first message to the second network device by using a wireless link that does not fail with the second network device, where the second network device receives the first message and forwards the first message to the first Internet equipment.
  • the first network device receives the first message, and determines, according to the first message, that the radio link established between the UE and the second network device fails.
  • the content of the first message is the same as that of the foregoing embodiment 1.
  • the link failure correlation identifier and/or the link failure reason may be carried.
  • the link failure correlation identifier may include any one or more of the following identifiers: a cell identifier of a cell corresponding to the failed radio link, and a SCG (secondary cell group) to which the radio link corresponding to the failed radio link belongs.
  • the identifier of the bearer corresponding to the failed radio link is the identifier of the RB corresponding to the failed radio link
  • the identifier of the RB corresponding to the failed radio link is the failed radio.
  • the cause of the link failure may be any one of the following reasons: a random access problem, the number of retransmissions of the random access pilot code reaches or exceeds the maximum number of retransmissions of the random access pilot code, and the number of retransmissions of the RLC uplink data reaches Or exceed the maximum number of retransmissions of RLC uplink data, timer timeout, and reconfiguration failure.
  • the first network device may take corresponding measures according to the link failure reason to prevent the wireless link from failing due to the link failure. For example, if the link fails because the number of RLC uplink data retransmissions reaches the maximum number of retransmissions of the RLC uplink data, and the number of RLC uplink data retransmissions reaches the maximum number of retransmissions of the RLC uplink data, the second retransmission number is set.
  • the first network device can adjust the maximum number of retransmissions of the RLC uplink data to avoid the wireless link established between the UE and the second network device due to the unreasonable setting of the maximum number of retransmissions of the RLC uplink data. The road failed.
  • the random access problem occurs, that is, the number of retransmissions of the random access pilot code reaches the maximum number of retransmissions of the random access pilot code. If the number of retransmissions of the random access pilot code reaches the maximum number of retransmissions of the random access pilot code, the reason is that the maximum number of retransmissions of the random access pilot code is different.
  • the first network device may adjust the maximum number of retransmissions of the random access pilot code to avoid the illegitimate setting of the maximum number of retransmissions of the random access pilot code, thereby causing the UE and the second network device to be The established wireless link failed.
  • the first network device can also assist the operator in A second network device is newly deployed in the vicinity of the UE, and the distance between the UE and the second network device is shortened, thereby avoiding the second time between the UE and the second network device due to the long distance between the UE and the second network device.
  • the established wireless link failed.
  • the reason for the failure of the link is that the timer expires. If the timer expires because the duration of the timer is unreasonable, the first network device can adjust the duration of the timer, thereby avoiding again due to the timer. The unreasonable setting of the duration causes the wireless link established between the UE and the second network device to fail. If the timer expires due to the lower downlink transmit power of the second network device, the first network device may assist the operator to increase the downlink transmit power of the second network device, thereby avoiding again due to the second network device. The lower downlink transmit power causes the radio link established between the UE and the second network device to fail.
  • the first network device sends a second message to the UE according to the first message, where the second message is used to indicate that the UE releases the cell, the SCG, the TAG, or the bearer.
  • this step can be implemented by the following steps (1) - (3), including:
  • the first network device will identify the SCG of the cell to which the failed radio link belongs, the identifier of the cell included in the SCG, and the primary cell included in the SCG.
  • the identifier of the bearer or the identifier of the bearer served by the SCG is determined as the first release identifier.
  • the first network device determines the wireless established between the UE and the second network device.
  • the first network device acquires the identifier of the SCG to which the cell corresponding to the failed radio link belongs, the identifier of the cell included in the SCG, the identifier of the primary cell included in the SCG, or the identifier of the bearer served by the SCG.
  • the identifier of the SCG to which the cell corresponding to the failed radio link belongs, the identifier of the cell included in the SCG, the identifier of the primary cell included in the SCG, or the identifier of the bearer served by the SCG is determined as the first release identifier.
  • the identifier of the bearer served by the SCG may be an identifier of the RB or an identifier of the E-RAB.
  • the identifier of the bearer served by the SCG may be an identifier of the RB.
  • the specific operation of obtaining the identifier of the cell included in the SCG may be: the first network device is in the correspondence between the identifier of the stored SCG and the identifier of the cell according to the identifier of the SCG to which the cell corresponding to the failed radio link belongs. Obtaining the identifier of the corresponding cell, and determining the identity of the obtained cell The identifier of the cell included in the SCG is determined.
  • Each of the SCGs includes a primary cell, and each SCG may not include a secondary cell, and may also include one or more secondary cells, and the wireless link established between the UE and the primary cell included in the SCG.
  • the UE cannot communicate with the second network device through the wireless link established between the UE and the secondary cell included in the SCG.
  • Each SCG can serve one or more RBs, and one RB can be served by the MCG and one or more SCGs at the same time, or can be served by only one SCG.
  • the first network device determines the first release identifier according to the link failure correlation identifier
  • the specific operation of the first network device to determine the first release identifier according to the link failure correlation identifier may be: if the link failure correlation identifier is the identifier of the cell corresponding to the failed radio link, the identifier of the cell is determined. Determining to be the first release identifier; if the link failure correlation identifier is the identifier of the SCG to which the cell corresponding to the failed radio link belongs, the identifier of the SCG, the identifier of the cell included in the SCG, and the primary cell included in the SCG The identifier of the TAG or the identifier of the TAG that the SCG serves is determined as the first release identifier.
  • the identifier of the link failure is the identifier of the TAG to which the cell corresponding to the failed radio link belongs, the identifier of the TAG or the TAG is included.
  • the identifier of the cell is determined as the first release identifier; if the link failure correlation identifier is the identifier of the bearer corresponding to the failed radio link, the identifier of the SCG serving the bearer, the identifier of the cell included in the SCG, The identifier of the primary cell included in the SCG or the identifier of the bearer served by the SCG is determined as the first release identifier.
  • the first network device sends a second message to the UE, where the second message carries the first release identifier.
  • the first network device may directly send the second message to the UE, and the second message does not carry the first release identifier.
  • the first network device sends a third message to the second network device according to the first message, where the third message is used to indicate that the second network device releases the resource serving the UE.
  • the identifier of the UE is determined as the second release identifier; if the first message carries the link failure correlation identifier, the second release is determined according to the link failure correlation identifier. And sending a third message to the second network device, where the third message carries the second release identifier.
  • the specific operation of determining the second release identifier according to the link failure correlation identifier may be: if the link failure correlation identifier is the identifier of the cell corresponding to the failed radio link, the UE identifier And the identifier of the cell is determined as the second release identifier; if the link failure correlation identifier is the identifier of the SCG to which the cell corresponding to the failed link belongs, the identifier of the UE is determined as the second release identifier; if the link fails The correlation identifier is the identifier of the TAG to which the cell corresponding to the failed radio link belongs, and the identifier of the UE and the identifier of the TAG are determined as the second release identifier, or the identifier of the UE and the identifier of the cell included in the TAG are determined.
  • the link failure correlation identifier is the identifier of the bearer corresponding to the failed radio link
  • the identifier of the UE is determined as the second release identifier, or the identifier of the UE and the SCG of the bearer are served.
  • the identity of the served bearer is determined to be the second release identity.
  • the identifier of the bearer served by the SCG serving the RB may be the identifier of the RB, or the E-RAB corresponding to the RB, because the identifier of the bearer corresponding to the failed radio link is the identifier of the RB.
  • - UTRAN Radio Access Bearer E-UTRAN radio access bearer
  • the identifier of the E-RAB is the identifier of the E-RAB corresponding to the RB, and the first network device may obtain the corresponding E from the correspondence between the identifier of the stored RB and the identifier of the E-RAB according to the identifier of the RB.
  • the identifier of the -RAB determines the identifier of the obtained E-RAB as the identifier of the E-RAB corresponding to the RB.
  • the UE receives a second message that is sent by the first network device, where the second message is used to indicate that the UE releases the cell, the secondary cell group SCG, the time advance group TAG, or the bearer. According to the second message, the cell, the SCG, the TAG, or the UE is released. Hosted.
  • the UE releases the SCG corresponding to the second network device.
  • the second message does not carry the first release identifier, it is determined that all the wireless links established between the UE and the second network device cannot be used normally, and the UE releases the SCG corresponding to the second network device.
  • the UE releases the cell, the SCG, the TAG, or the bearer according to the first release identifier;
  • the specific operation of releasing the cell, the SCG, the TAG, or the bearer according to the first release identifier may be: if the first release identifier is the identifier of the cell and the cell is a secondary cell included in the SCG, releasing the cell; If the identity of the cell is the primary cell included in the SCG, the first release identifier is the identifier of the SCG, or the first release identifier is the identifier of all the cells included in the SCG, the SCG is released; if the first release identifier is the identifier of the TAG And releasing the TAG; if the first release identifier is the identifier of the cell included in the TAG, releasing the cell included in the TAG; if the first release identifier is the identifier of the bearer served by the SCG, releasing the bearer served by the SCG.
  • the cell included in one TAG may be a cell controlled by one network device, or may be a cell controlled by multiple network devices.
  • the specific operation of releasing the cell included in the TAG may be: when the TAG includes a cell controlled by one network device, all cells included in the TAG are directly released.
  • the cell controlled by the second network device is selected from the cells included in the TAG, and the selected cell is released.
  • the specific operation of releasing the bearer served by the SCG may be:
  • the identifier of the bearer served by the SCG is the identifier of the RB
  • the RB is released, that is, the PDCP entity associated with the RB, the RLC entity and the logical channel are released;
  • the part of the bearer served by the SCG is released, that is, the RLC entity associated with the bearer and the RLC entity and the logical channel corresponding to the SCG in the logical channel are released.
  • the user equipment acquires the identifier of the corresponding RB from the correspondence between the identifier of the stored RB and the identifier of the E-RAB according to the identifier of the E-RAB. .
  • the RB is released, that is, the PDCP entity associated with the RB, the RLC entity and the logical channel are released; when the RB is simultaneously served by the MCG and the SCG, the bearer is released.
  • the part served by the SCG that is, the RLC entity associated with the bearer and the RLC entity and logical channel corresponding to the SCG in the logical channel are released.
  • the second network device receives the third message sent by the first network device, where the third message is used to indicate that the second network device releases the resource served by the UE; and according to the indication message, release the resource serving as the UE.
  • the third message may carry a second release identifier, and release a resource serving the UE according to the second release identifier.
  • the second network device receives the third message. If the second release identifier is the identifier of the UE, releasing the resource served by the UE; if the second release identifier is the identifier of the UE and the identifier of the cell, releasing the resource of the cell served by the UE; Release the identifier of the MME and the TAG of the UE, and release the resource of the TAG served by the UE; if the second release identifier is the identifier of the UE and the identifier of the cell included in the TAG, release the TAG serving the UE The resource of the included cell; if the second release identifier is the identifier of the UE and the identifier of the bearer served by the SCG serving the bearer, the resource of the bearer service of the UE is released.
  • the cell included in one TAG may be a cell controlled by one network device, or may be a cell controlled by multiple network devices.
  • the specific operation of releasing the cell resource included in the TAG The resource of all the cells included in the TAG is directly released when the TAG includes a cell controlled by the network device.
  • the cell controlled by the second network device is selected from the cells included in the TAG, and resources of the selected cell are released.
  • the specific operation of releasing the resource of the bearer service of the UE may be: if the identifier of the bearer served by the SCG serving the bearer is an identifier of the RB, according to the identifier of the RB, the identifier of the stored RB is The identifier of the corresponding E-RAB is obtained in the correspondence between the identifiers of the E-RABs, and the resources of the E-RAB service of the UE are released. If the identifier of the bearer served by the SCG serving the bearer is the identifier of the E-RAB, the resource of the E-RAB service for the UE is directly released.
  • the first network device may only indicate that the UE or the second network device performs resource release, and may simultaneously instruct the UE and the second network device to perform resource release. That is, the first network device may only send the second message or the third message, or may simultaneously (or not simultaneously) send the second message and the third message to instruct the UE and/or the second network device to release related resources.
  • the configuration of the present invention is not limited in any way.
  • the user equipment when the user equipment detects that the radio link fails between the self and the secondary base station, the user equipment reports a message to the primary base station to notify the primary base station that a wireless link failure has occurred between the UE and the secondary base station.
  • the primary base station is made aware that the radio link failure occurs between the UE and the secondary base station, so unnecessary operations such as SRB reconstruction and secure reactivation may not be performed.
  • the primary base station may further process the radio link failure, for example, releasing related resources of the secondary base station and/or the UE, so that the secondary base station re-allocates resources for the UE as soon as possible, effectively shortening the user caused by the wireless link failure.
  • the data interruption time improves the user experience.
  • FIG. 6 is a flowchart of a method for processing a radio link failure according to an embodiment of the present invention. As shown in FIG. 6, the method includes:
  • the second network device detects whether a radio link failure occurs between the UE and the second network device; that is, the second network device detects whether a radio link established between the UE and the second network device fails; when the UE and the UE When a wireless link is established between multiple cells of the second network device, if any one of the wireless links fails, wireless occurs between the UE and the second network device.
  • the link fails (that is, the radio link established between the UE and the second network device fails); in the case that one or some radio links fail, the UE and the second network device may also be configured.
  • a radio link failure occurred ie, the radio link established between the UE and the second network device failed).
  • S602 When detecting that a radio link failure occurs between the UE and the second network device, transmitting a first message to the first network device, where the first message is used to indicate the user equipment and the second network device A radio link failure has occurred between. That is, when it is detected that the radio link established between the UE and the second network device fails, the first message is sent to the first network device, where the first message is used to indicate that the UE is established with the second network device. The wireless link fails, or the first message is used to indicate that the wireless link failure between the user equipment and the second network device occurs.
  • the first network device refers to the primary base station
  • the second network device refers to the secondary base station.
  • the radio link may be reported to the primary base station, so that the primary base station knows that the radio link failure occurs between the UE and the secondary base station, so Perform unnecessary operations such as SRB reconstruction and secure reactivation.
  • the primary base station may further process the failure of the radio link, for example, releasing related resources of the secondary base station and/or the UE, so that the secondary base station re-allocates resources for the UE as soon as possible, effectively shortening the user caused by the failure of the wireless link.
  • the data interruption time improves the user experience.
  • the step S601 that is, the step of detecting, by the second network device, whether the wireless link established between the UE and the second network device fails, may be implemented in the following manner:
  • the second network device when detecting that the second network device attempts to receive the random access request sent by the user equipment by using the first wireless link to reach or exceed the maximum number of attempts to receive the random access request, determining the user The wireless link established between the device and the second network device fails, wherein the first wireless link is any wireless link established between the user equipment and the second network device.
  • the second network device attempts to receive a random access request sent by the UE to the second network device by using a wireless link established between a cell controlled by the second network device in a current period, if the second network If the device does not receive the random access request, the second network device re-attempts to receive the random access request sent by the UE to the second network device by using the wireless link in the next cycle, and collects a third number of times.
  • the three times is the number of times the second network device attempts to receive a random access request sent by the UE to the second network device over the wireless link. If the third number is greater than or equal to the maximum number of attempts to receive the random access request, the second network device determines that the wireless link fails, Then, the second network device determines that the wireless link does not fail.
  • the second network device when detecting that the second network device sends the physical downlink control channel PDCCH information to the user equipment to reach or exceed the maximum number of PDCCH retransmissions by using the first radio link, determining the user equipment and the second The wireless link established between the network devices fails, wherein the first wireless link is any wireless link established between the user equipment and the second network device;
  • the second network device When the second network device sends the PDCCH information to the UE through a certain wireless link established between the UE and the UE, if the PDCCH information fails to be sent, the second network device retransmits the PDCCH information to the UE through the wireless link, And counting the fourth number, the fourth number is the number of times the second network device repeatedly sends the PDCCH information to the UE by using the radio link, and if the fourth number is greater than or equal to the PDCCH maximum retransmission number, determining the UE and the first The wireless link between the two network devices fails, otherwise, it is determined that the wireless link between the UE and the second network device does not fail.
  • the wireless link that is established between the user equipment and the second network device is the first wireless carrier that is the wireless device that the second network device serves for the user equipment, and is carried by the user equipment and the second network device. Established on one or more wireless links.
  • the second network device When the second network device sends the RLC downlink data to the UE by using a certain RB carried by the radio link established between the UE, if the RLC downlink data transmission fails, the second network device re-passes the RB to the UE. Sending the RLC downlink data, and counting the fifth number, the fifth number being the number of times the second network device repeatedly sends the RLC downlink data to the UE by using the RB, and if the fifth number is greater than or equal to the maximum number of retransmission times of the RLC downlink data, Determining that the radio link carrying the RB between the UE and the second network device fails, otherwise, determining that the radio link carrying the RB between the UE and the second network device does not fail.
  • the block error rate of the uplink data sent by the user equipment received by the second network device by the first wireless link is greater than or equal to a preset error block rate, determining the user equipment and the The wireless link established between the two network devices fails, wherein the first wireless link is any wireless link established between the user equipment and the second network device.
  • the second network device calculates the error block of the received uplink data. Rate, compare the calculated block error rate with the preset block error rate, if the calculated block error If the rate is greater than or equal to the preset error block rate, it is determined that the radio link established between the UE and the cell fails. Otherwise, it is determined that the radio link established between the UE and the cell does not fail.
  • the second network device calculates the received data.
  • the error block rate of the uplink data is compared with the preset block error rate. If the calculated block error rate is greater than or equal to the preset block error rate, it is determined that the radio link carrying the RB fails. B', it is determined that the radio link carrying the RB has not failed.
  • the wireless link established between the second network device fails, wherein the first wireless link is any wireless link established between the user equipment and the second network device.
  • the second network device calculates the error rate of the received uplink data. And comparing the calculated error rate with the preset error rate. If the calculated error rate is greater than or equal to the preset error rate, determining that the wireless link established between the UE and the cell fails, otherwise, It is determined that the wireless link established between the UE and the cell has not failed. If the second network device receives the uplink data sent by the UE to the second network device by using a certain RB carried by the radio link established between the cell controlled by the UE and the UE, the second network device calculates the received uplink data.
  • a bit error rate comparing the calculated bit error rate with a preset bit error rate. If the calculated bit error rate is greater than or equal to the preset bit error rate, the determined radio link carrying the RB fails, otherwise, determining The radio link carrying the RB did not fail.
  • the maximum number of attempts to receive the random access request may be preset in the second network device.
  • Medium can also be configured by the first network device to the second network device. This will be described in detail in the fourth embodiment, and will not be described again.
  • the foregoing first message may be a newly added message, or a specially set message.
  • the primary base station receives the message, according to the name of the message, it can be known that the wireless occurs between the UE and the secondary base station. The link failed.
  • the first message may also be a newly added cell in the existing message, or a specially set cell.
  • the primary base station receives the first message, according to whether the newly added cell is included in the first message. It can be known that a radio link failure has occurred between the UE and the secondary base station.
  • the first message may carry the identifier of the UE, and the link failure correlation identifier, and the link
  • the failure correlation identifier can include one or more of the following identifiers:
  • the identifier of the cell corresponding to the failed radio link The identifier of the cell corresponding to the failed radio link, the identifier of the secondary cell group SCG to which the cell corresponding to the failed radio link belongs, the identifier of the time-advance group TAG of the cell to which the failed radio link belongs, and the wireless failure The identifier of the bearer corresponding to the link.
  • the primary base station can determine the release of the related resources of the secondary base station and/or the UE according to the link failure correlation identifier, so that the secondary base station re-allocates the resources for the UE as soon as possible, further shortening the user data interruption time caused by the wireless link failure, and improving The user experience. This will be described in detail in Embodiment 4 and will not be described again.
  • the first message may also not carry the above link failure correlation identifier.
  • the primary base station may avoid SRB reconstruction and security according to the first message when the radio link failure occurs between the secondary base station and the UE. Re-activation and other unnecessary operations without further processing.
  • the UE has only one secondary base station serving the same, the related resources of the secondary base station and/or the UE may also be released according to the first message.
  • the first message may carry a link failure reason.
  • the link failure-related identifier or the link failure reason may be carried, and the link failure-related identifier and the link failure reason may be carried at the same time.
  • the primary base station can more accurately locate the cause of the failure, thereby being able to recover from the failure with minimal cost.
  • the reason for the above link failure may include: a random access problem, the number of times the random access request is received reaches or exceeds the maximum number of attempts to receive the random access request, the number of retransmissions of the PDCCH reaches or exceeds the maximum number of PDCCH retransmissions, and RLC
  • the number of downlink data retransmissions reaches or exceeds the maximum number of retransmissions of the RLC downlink data
  • the block error rate of the uplink data reaches or exceeds the preset error block rate
  • the error rate of the uplink data reaches or exceeds the preset error rate
  • the uplink reception problem Or send a question downstream.
  • the primary base station may notify the secondary base station and/or the UE to release related resources, so that the secondary base station re-allocates resources for the UE as soon as possible, so as to shorten
  • the interruption of user data caused by the failure of the wireless link improves the user experience.
  • the primary base station sends a second message to the secondary base station according to the first message, where the second message is used to indicate that the secondary base station releases the resources served by the UE.
  • the processing method for the above radio link failure may further include:
  • S603 The second network device receives the third message that is sent by the first network device, where the third message is used to indicate that the second network device releases the resource that is served by the UE.
  • S604 Release, according to the third message, a resource serving the UE.
  • step S604 when the third message includes the identifier of the UE, the resource serving the UE is released; when the third message includes the identifier of the UE and the identifier of the cell, the release is the The resource of the cell served by the UE; or, when the third message includes the identifier of the UE and the identifier of the TAG, releasing the resource of the TAG served by the UE; or, when the third message includes the UE Release the resource of the cell included in the TAG served by the user equipment when the identifier of the cell in the TAG and the identifier of the cell in the TAG; or, when the third message includes the identifier of the user equipment and the identifier of the bearer, release A resource serving the bearer of the user equipment.
  • a cell included in a TAG may be a cell controlled by one network device, or may be a cell controlled by multiple network devices.
  • the specific operation of releasing the resources of the cell included in the TAG may be: when the TAG includes a cell controlled by the network device, directly releasing resources of all cells included in the TAG.
  • the cell controlled by the second network device is selected from the cells included in the TAG, and the resources of the selected cell are released.
  • the specific operation of releasing the resource of the bearer service of the UE may be: if the identifier of the bearer served by the SCG serving the bearer is the identifier of the RB, according to the identifier of the RB, the identifier of the stored RB and the E- The identifier of the corresponding E-RAB is obtained in the correspondence between the identifiers of the RABs, and the resources of the E-RAB service of the UE are released. If the identifier of the bearer served by the SCG serving the bearer is the identifier of the E-RAB, the resource serving the E-RAB of the UE is directly released.
  • the secondary base station when the secondary base station detects that a radio link failure occurs between itself and the UE, the secondary base station reports a message to the primary base station to notify the primary base station that a radio link failure has occurred between the UE and the secondary base station.
  • the master base station is made aware that the radio link failure occurs between the UE and the secondary base station, so unnecessary operations such as SRB reconstruction and secure reactivation may be omitted.
  • the primary base station may further process the radio link failure, for example, releasing related resources of the secondary base station and/or the UE, so that the secondary base station re-allocates resources for the UE as soon as possible, effectively shortening the user caused by the wireless link failure.
  • the data interruption time improves the user experience.
  • Embodiment 4 In the following, in conjunction with the fourth embodiment, a process of further processing by the primary base station after learning that a radio link failure occurs between the UE and the secondary base station is described.
  • Embodiment 4 In the following, in conjunction with the fourth embodiment, a process of further processing by the primary base station after learning that a radio link failure occurs between the UE and the secondary base station is described.
  • FIG. 8 is another method for processing a wireless link failure according to an embodiment of the present invention.
  • Signaling flow diagram as shown in Figure 8, the method includes:
  • the first network device sends a configuration parameter to the second network device, where the configuration parameter carries one or more of the following parameters: a maximum number of attempts to receive the random access request, a maximum number of PDCCH retransmissions, and a maximum retransmission of the RLC downlink data.
  • the configuration parameter carries one or more of the following parameters: a maximum number of attempts to receive the random access request, a maximum number of PDCCH retransmissions, and a maximum retransmission of the RLC downlink data.
  • BLER block error rate
  • BER Bit Error Rate
  • the second network device receives the configuration parameter, and detects, according to the received configuration parameter, whether a wireless link established between the UE and the UE fails.
  • the UE can establish a radio link with multiple cells controlled by the second network device, that is, the UE can establish multiple radio links with the second network device.
  • the second network device After the second network device receives the configuration parameter, if the configuration parameter carries the maximum number of attempts to receive the random access request, when the second network device attempts to receive the UE in the current cycle, it is controlled by the second network device.
  • the wireless link established between a certain cell sends a random access request to the second network device
  • the second network device retryes in the next cycle.
  • Receiving a random access request sent by the UE to the second network device by using the wireless link and collecting a third number of times, where the second network device attempts to receive the UE by using the wireless link to the second The number of random access requests sent by the network device. If the third number is greater than or equal to the maximum number of attempts to receive the random access request, the second network device determines that the wireless link has failed, otherwise the second network device determines that the wireless link has not failed.
  • the second network device sends the PDCCH information to the UE by using a certain radio link established between the UE, if the PDCCH information fails to be sent, The second network device sends the PDCCH information to the UE through the wireless link, and counts the fourth time.
  • the fourth number is the number of times the second network device repeatedly sends the PDCCH information to the UE through the wireless link, if the fourth time If the number of times of the PDCCH is greater than or equal to the maximum number of retransmissions of the PDCCH, determining that the radio link between the UE and the second network device fails, otherwise, determining that the radio link between the UE and the second network device does not fail .
  • the configuration parameter carries the maximum number of retransmissions of the RLC downlink data
  • the second network device sends the RLC downlink data to the UE through an RB carried by the radio link established between the UE, if the RLC downlink If the data transmission fails, the second network device sends the RLC downlink data to the UE through the RB, and counts the fifth time, and the fifth time is that the second network device passes the The number of times the RB repeatedly sends the RLC downlink data to the UE.
  • the radio link carrying the RB between the UE and the second network device fails, otherwise And determining that the radio link that carries the RB between the UE and the second network device does not fail.
  • the second network device calculates a block error rate of the received uplink data, compares the calculated block error rate with a preset block error rate, and determines the UE if the calculated block error rate is greater than or equal to the preset block error rate.
  • the radio link established with the cell fails, otherwise, it is determined that the radio link established between the UE and the cell does not fail.
  • the second network device receives uplink data sent by the UE to the second network device by using a certain RB carried by the radio link established between the cell controlled by the UE and the UE, the second network device calculates the received uplink data.
  • the error block rate the calculated block error rate is compared with the preset block error rate. If the calculated block error rate is greater than or equal to the preset block error rate, it is determined that the radio link carrying the RB fails, otherwise, determining The radio link carrying the RB did not fail.
  • the configuration parameter carries the preset error rate
  • the second network device receives the uplink data sent by the UE to the second network device by using the wireless link established between the cell controlled by the second network and the UE
  • the second network device calculates a bit error rate of the received uplink data, compares the calculated bit error rate with a preset error rate, and if the calculated bit error rate is greater than or equal to a preset error rate, determining the UE and the The radio link established between the cells fails. Otherwise, it is determined that the radio link established between the UE and the cell does not fail.
  • the second network device calculates the received uplink data. a bit error rate, comparing the calculated bit error rate with a preset bit error rate. If the calculated bit error rate is greater than or equal to the preset bit error rate, the determined radio link carrying the RB fails, otherwise, determining The radio link carrying the RB did not fail.
  • the configuration parameter carries a maximum number of attempts to receive a random access request, a maximum number of PDCCH retransmissions, a maximum number of retransmissions of RLC downlink data, a preset error block rate, and a plurality of preset error rates. Any one of the parameters determines whether the wireless link established between the UE and the second network device fails by using the foregoing first to fifth conditions corresponding to the parameter.
  • the reason for the failure of the radio link established between the UE and the second network device is as follows: an uplink receiving problem and a downlink sending problem.
  • Uplink reception problems include receiving random access requests The maximum number of attempts to receive a random access request, the BLER of the uplink data meets or exceeds the preset error block rate, and the BER of the uplink data meets or exceeds the preset error rate.
  • the downlink transmission problem includes that the number of retransmissions of the PDCCH reaches or exceeds the maximum number of retransmissions of the PDCCH and the number of retransmissions of the RLC downlink data reaches or exceeds the maximum number of retransmissions of the RLC downlink data.
  • the first network device may not send the configuration parameter to the second network device, but the second network device itself configures the maximum number of attempts to receive the random access request, the maximum number of PDCCH retransmissions, and the maximum retransmission of the RLC downlink data.
  • the second network device detects the wireless link established between itself and the UE according to the above parameters configured by itself.
  • the second network device may send the first to the first network device by using a wired link established with the first network device.
  • the first message may be sent to the first network device in a wireless manner, which is not limited in the embodiment of the present invention.
  • the first network device receives the first message, and determines, according to the first message, that the wireless link established between the UE and the second network device fails.
  • the content of the first message is the same as that in the foregoing embodiment 3.
  • the identifier of the UE may be carried, and the link failure related identifier and/or the link failure reason.
  • the link failure correlation identifier may include any one or more of the following identifiers: an identifier of a cell corresponding to the failed radio link, an identifier of the SCG to which the cell corresponding to the failed radio link belongs, and a wireless failure to transmit The identifier of the TAG to which the cell corresponding to the link belongs and the identifier of the carrier corresponding to the failed wireless link.
  • the identifier of the bearer corresponding to the failed radio link may be the identifier of the E-RAB corresponding to the failed radio link.
  • the reason for the link failure may be any one of the following reasons: a random access problem, the number of times the random access request is received reaches or exceeds the maximum number of attempts to receive the random access request, and the number of retransmissions of the PDCCH reaches or exceeds the maximum PDCCH.
  • the number of retransmissions, the number of retransmissions of RLC downlink data reaches or exceeds the maximum number of retransmissions of RLC downlink data
  • the BLER of uplink data reaches or exceeds the preset error block rate
  • the BER of uplink data reaches or exceeds the preset error rate
  • the first network device may adopt the link failure reason Take appropriate measures to avoid the wireless link failure due to the link failure again. For example, when the link fails because the number of times the random access request is received reaches the maximum number of attempts to receive the random access request, and the number of times the random access request is received reaches the maximum number of attempts to receive the random access request is an attempt. When the maximum number of times of receiving the random access request is unreasonable, the first network device may adjust the maximum number of attempts to receive the random access request to avoid unreasonable setting again due to the maximum number of attempts to receive the random access request.
  • the radio link established between the UE and the second network device fails.
  • the first network device may also assist the operator in the vicinity of the UE if the number of times the random access request is received reaches the maximum number of attempts to receive the random access request because the distance between the UE and the second network device is far. Newly deploying a second network device, shortening the distance between the UE and the second network device, and avoiding the occurrence of a wireless link between the UE and the second network device due to the distance between the UE and the second network device. failure.
  • the reason for the failure of the link is that the maximum number of retransmissions of the PDCCH is unreasonable.
  • the network device can adjust the maximum number of PDCCH retransmissions to avoid the failure of the radio link established between the UE and the second network device due to the unreasonable setting of the maximum number of PDCCH retransmissions.
  • the reason for the failure of the link is that the number of retransmissions of the RLC downlink data reaches the maximum number of retransmissions of the RLC downlink data, and the number of retransmissions of the RLC downlink data reaches the maximum number of retransmissions of the RLC downlink data is the maximum number of retransmissions of the RLC downlink data.
  • the first network device can adjust the maximum number of retransmissions of the RLC downlink data to avoid the wireless established between the UE and the second network device due to the unreasonable setting of the maximum number of retransmissions of the RLC downlink data. The link failed.
  • the first network device can be adjusted to avoid the wireless link established between the UE and the second network device from failing due to the unreasonable setting of the preset error block rate.
  • the first network device can be adjusted to avoid the failure of the wireless link established between the UE and the second network device due to the unreasonable setting of the preset error rate.
  • the first network device sends a second message to the UE according to the first message, where the second message is used to refer to Indicate that the UE releases the cell, the SCG, the TAG, or the bearer;
  • this step can be implemented by the following steps (1) - (3), including:
  • the first network device will identify the SCG of the cell to which the failed radio link belongs, the identifier of the cell included in the SCG, and the primary cell included in the SCG.
  • the identifier of the bearer or the identifier of the bearer served by the SCG is determined as the first release identifier.
  • the first network device determines the wireless established between the UE and the second network device.
  • the first network device acquires the identifier of the SCG to which the cell corresponding to the failed radio link belongs, the identifier of the cell included in the SCG, the identifier of the primary cell included in the SCG, or the identifier of the bearer served by the SCG.
  • the identifier of the SCG to which the cell corresponding to the failed radio link belongs, the identifier of the cell included in the SCG, the identifier of the primary cell included in the SCG, or the identifier of the bearer served by the SCG is determined as the first release identifier.
  • the identifier of the bearer served by the SCG may be an identifier of the RB or an identifier of the E-RAB.
  • the identifier of the bearer served by the SCG may be an identifier of the RB.
  • the specific operation of obtaining the identifier of the cell included in the SCG may be: the first network device is in the correspondence between the identifier of the stored SCG and the identifier of the cell according to the identifier of the SCG to which the cell corresponding to the failed radio link belongs. Obtaining an identifier of the corresponding cell, and determining an identifier of the acquired cell as an identifier of the cell included in the SCG.
  • Each of the SCGs includes a primary cell, and each SCG may not include a secondary cell, and may also include one or more secondary cells, and the wireless link established between the UE and the primary cell included in the SCG.
  • the UE cannot communicate with the second network device through the wireless link established between the UE and the secondary cell included in the SCG.
  • Each SCG can serve one or more RBs, and one RB can be served by the MCG and one or more SCGs at the same time, or can be served by only one SCG.
  • the first network device determines the first release identifier according to the link failure correlation identifier
  • the specific operation of the first network device to determine the first release identifier according to the link failure correlation identifier may be: if the link failure correlation identifier is the identifier of the cell corresponding to the failed radio link, the identifier of the cell is determined. Determining to be the first release identifier; if the link failure correlation identifier is the identifier of the SCG to which the cell corresponding to the failed radio link belongs, the identifier of the SCG, the identifier of the cell included in the SCG, and the primary cell included in the SCG The identifier of the bearer or the identifier of the bearer served by the SCG is determined as the first release identifier; if the link fails, the correlation identifier is a radio link pair that fails.
  • the identifier of the TAG to which the corresponding cell belongs, the identifier of the TAG or the identifier of the cell included in the TAG is determined as the first release identifier; if the link failure correlation identifier is the identifier of the bearer corresponding to the failed wireless link, The identifier of the SCG serving the bearer, the identifier of the cell included in the SCG, the identifier of the primary cell included in the SCG, or the identifier of the bearer served by the SCG is determined as the first release identifier.
  • the first network device sends a second message to the UE, where the second message carries the first release identifier.
  • the first network device may directly send the second message to the UE, and the second message does not carry the first release identifier.
  • the first network device sends a third message to the second network device according to the first message, where the third message is used to indicate that the second network device needs to release resources serving the UE.
  • the identifier of the UE is determined as the second release identifier; if the first message carries the link failure correlation identifier, the second release is determined according to the link failure correlation identifier. And sending a third message to the second network device, where the third message carries the second release identifier.
  • the specific operation of determining the second release identifier according to the link failure correlation identifier may be: if the link failure correlation identifier is the identifier of the cell corresponding to the failed radio link, determining the identifier of the UE and the identifier of the cell If the link failure correlation identifier is the identifier of the SCG to which the cell corresponding to the failed link belongs, the identifier of the UE is determined as the second release identifier; if the link failure correlation identifier is the failed wireless If the identifier of the TAG that the cell corresponding to the link belongs to, the identifier of the UE and the identifier of the TAG are determined as the second release identifier, or the identifier of the UE and the identifier of the cell included in the TAG are determined as the second release identifier; The link failure correlation identifier is the identifier of the bearer corresponding to the failed radio link, and the identifier of the UE is determined as the second release identifier, or the identifier
  • the identifier of the bearer served by the SCG serving the RB may be the identifier of the RB, or the E-RAB corresponding to the RB, because the identifier of the bearer corresponding to the failed radio link is the identifier of the RB.
  • - UTRAN Radio Access Bearer E-UTRAN radio access bearer
  • the identifier of the E-RAB is the identifier of the E-RAB corresponding to the RB, and the first network device may obtain the corresponding E from the correspondence between the identifier of the stored RB and the identifier of the E-RAB according to the identifier of the RB.
  • the identifier of the -RAB determines the identifier of the obtained E-RAB as the identifier of the E-RAB corresponding to the RB.
  • the UE receives a second message sent by the first network device, where the second message is used to indicate the UE. Release the cell, the secondary cell group SCG, the time advance group TAG or the bearer; according to the second message, release the cell, the SCG, the TAG or the bearer.
  • the UE releases the SCG corresponding to the second network device.
  • the second message does not carry the first release identifier, it is determined that all the wireless links established between the UE and the second network device cannot be used normally, and the UE releases the SCG corresponding to the second network device.
  • the UE releases the cell, the SCG, the TAG, or the bearer according to the first release identifier;
  • the specific operation of releasing the cell, the SCG, the TAG, or the bearer according to the first release identifier may be: if the first release identifier is the identifier of the cell and the cell is a secondary cell included in the SCG, releasing the cell; If the identity of the cell is the primary cell included in the SCG, the first release identifier is the identifier of the SCG, or the first release identifier is the identifier of all the cells included in the SCG, the SCG is released; if the first release identifier is the identifier of the TAG And releasing the TAG; if the first release identifier is the identifier of the cell included in the TAG, releasing the cell included in the TAG; if the first release identifier is the identifier of the bearer served by the SCG, releasing the bearer served by the SCG.
  • the cell included in one TAG may be a cell controlled by one network device, or may be a cell controlled by multiple network devices.
  • the specific operation of releasing the cell included in the TAG may be: when the TAG includes a cell controlled by the network device, all the cells included in the TAG are directly released.
  • the cell controlled by the second network device is selected from the cells included in the TAG, and the selected cell is released.
  • the specific operation of releasing the bearer served by the SCG may be:
  • the identifier of the bearer served by the SCG is the identifier of the RB
  • the RB is released, that is, the PDCP entity associated with the RB, the RLC entity and the logical channel are released;
  • the part of the bearer served by the SCG is released, that is, the RLC entity associated with the bearer and the RLC entity and the logical channel corresponding to the SCG in the logical channel are released.
  • the UE obtains the identifier of the corresponding RB from the correspondence between the identifier of the stored RB and the identifier of the E-RAB according to the identifier of the E-RAB.
  • the RB is released, that is, the PDCP entity associated with the RB, the RLC entity and the logical channel are released; when the RB is simultaneously served by the MCG and the SCG, Then, the part of the bearer served by the SCG is released, that is, the RLC entity associated with the bearer and the RLC entity and the logical channel corresponding to the SCG in the logical channel are released.
  • the second network device receives the third message sent by the first network device, where the third message is used to indicate that the second network device releases the resource served by the UE; and according to the indication message, release the resource served by the UE.
  • the third message may carry a second release identifier, and release a resource serving the UE according to the second release identifier.
  • the second network device receives the third message. If the second release identifier is the identifier of the UE, releasing the resource served by the UE; if the second release identifier is the identifier of the UE and the identifier of the cell, releasing the resource of the cell served by the UE; Release the identifier of the MME and the TAG of the UE, and release the resource of the TAG served by the UE; if the second release identifier is the identifier of the UE and the identifier of the cell included in the TAG, release the TAG serving the UE The resource of the included cell; if the second release identifier is the identifier of the UE and the identifier of the bearer served by the SCG serving the bearer, the resource of the bearer service of the UE is released.
  • the cell included in one TAG may be a cell controlled by one network device, or may be a cell controlled by multiple network devices.
  • the specific operation of releasing the cell resource included in the TAG may be: when the TAG includes a cell controlled by a network device, directly releasing resources of all cells included in the TAG.
  • the cell controlled by the second network device is selected from the cells included in the TAG, and the resources of the selected cell are released.
  • the specific operation of releasing the resource of the bearer service of the UE may be: if the identifier of the bearer served by the SCG serving the bearer is an identifier of the RB, according to the identifier of the RB, the identifier of the stored RB is The identifier of the corresponding E-RAB is obtained in the correspondence between the identifiers of the E-RABs, and the resources of the E-RAB service of the UE are released. If the identifier of the bearer served by the SCG serving the bearer is the identifier of the E-RAB, the resource of the E-RAB service for the UE is directly released.
  • the first network device may only indicate that the UE or the second network device performs resource release, and may simultaneously instruct the UE and the second network device to perform resource release. That is, the first network device may only send the second message or the third message, or may simultaneously (or not simultaneously) send the second message and the third message to instruct the UE and/or the second network device to release related resources.
  • the configuration of the present invention is not limited in any way.
  • the secondary base station when the secondary base station detects that a radio link has failed between itself and the UE, The message is reported to the primary base station to notify the primary base station that a radio link failure has occurred between the UE and the secondary base station.
  • the primary base station is made aware that the radio link failure occurs between the UE and the secondary base station, so unnecessary operations such as SRB reconstruction and secure reactivation may not be performed.
  • the primary base station may further process the radio link failure, for example, releasing related resources of the secondary base station and/or the UE, so that the secondary base station re-allocates resources for the UE as soon as possible, effectively shortening the user caused by the wireless link failure.
  • the data interruption time improves the user experience.
  • the embodiment of the present invention provides a processing device for a radio link failure, which is located at the user equipment side, and see FIG. 9, the device includes:
  • the detecting unit 901 is configured to detect whether a wireless link established between the user equipment and the second network device fails.
  • the sending unit 902 is configured to: when the detecting unit 901 detects that the wireless link established between the user equipment and the second network device fails, send a first message to the first network device, where the first message is used to indicate the user equipment The wireless link established with the second network device fails.
  • the detecting unit 901 is specifically configured to:
  • the first wireless link is any wireless link established between the user equipment and the second network device;
  • the radio link established between the user equipment and the second network device fails, where the first cell is any of the second network devices. Community; or,
  • a first radio bearer is any radio bearer that the second network device serves for the user equipment, and is carried on one or more radio links established between the user equipment and the second network device.
  • the processing device that fails the radio link further includes:
  • the receiving unit 903 is configured to receive a configuration parameter, where the configuration parameter includes one of the following parameters or The maximum number of retransmissions of the random access pilot code, the timer duration, and the maximum number of retransmissions of the RLC uplink data; wherein the configuration parameter is obtained by the first network device from the second network device and sent to the user equipment; or The configuration parameter is sent by the second network device to the user device.
  • the configuration parameter includes one of the following parameters or The maximum number of retransmissions of the random access pilot code, the timer duration, and the maximum number of retransmissions of the RLC uplink data
  • the first message carries a link failure correlation identifier
  • the link failure correlation identifier includes one or more of the following identifiers: an identifier of a cell corresponding to the failed radio link, and a corresponding radio link that fails.
  • the identifier of the secondary cell group SCG to which the cell belongs the identifier of the time-advance group TAG of the cell to which the failed radio link belongs, and the identifier of the radio link corresponding to the failed radio link.
  • the first message carries a link failure reason.
  • the reason for the link failure includes: a random access problem, the number of retransmissions of the random access pilot code reaches or exceeds the maximum number of retransmissions of the random access pilot code, and the number of RLC uplink data retransmissions reaches or exceeds the RLC uplink data.
  • the receiving unit 903 is further configured to receive the indication message sent by the first network device, where the indication message is used to indicate that the user equipment releases the cell, the secondary cell group SCG, the time advance group TAG, or the bearer; and the device further includes:
  • the releasing unit 904 is configured to release the cell, the SCG, the TAG, or the bearer according to the indication message. Further, the release unit 904 is specifically configured to:
  • the indication message carries the release identifier
  • the cell, the SCG, the TAG, or the bearer is released according to the release identifier.
  • the releasing unit 804 is specifically configured to:
  • release the cell When the release identifier is the identifier of the cell and the cell is a secondary cell in the SCG, release the cell; when the release identifier is the identifier of the cell and the cell is the primary cell in the SCG, or the identifier of the release identifier is SCG, or When the release identifier is the identifier of all cells included in the SCG, release the
  • the release identifier is an identifier of the TAG
  • the TAG is released
  • the release identifier is an identifier of a cell in the TAG, releasing a cell controlled by the second network device in the TAG;
  • the release identifier is an identifier of a bearer served by the SCG
  • the receiving unit in this embodiment may be a receiver of the UE
  • the sending unit may be a transmitter of the UE.
  • the receiving unit and the sending unit may be integrated to form a transceiver of the UE.
  • the detection unit can be a separately set processor or integrated in one of the UEs. In the processor, it can also be stored in the memory of the UE in the form of program code, and is called by one processor of the UE and performs the functions of the above detecting unit.
  • the implementation of the release unit is the same as that of the detection unit, and may be integrated with the detection unit or independently.
  • the processor described herein may be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated configurations configured to implement embodiments of the present invention. Circuit.
  • the user equipment when the user equipment detects that the radio link fails between the self and the secondary base station, the user equipment reports a message to the primary base station to notify the primary base station that a wireless link failure has occurred between the UE and the secondary base station.
  • the primary base station is made aware that the radio link failure occurs between the UE and the secondary base station, so unnecessary operations such as SRB reconstruction and secure reactivation may not be performed.
  • the primary base station may further process the radio link failure, for example, releasing related resources of the secondary base station and/or the UE, so that the secondary base station re-allocates resources for the UE as soon as possible, effectively shortening the user caused by the wireless link failure.
  • the data interruption time improves the user experience.
  • An embodiment of the present invention provides a device for detecting a failure of a radio link, which is located on a second network device side.
  • the device includes:
  • the detecting unit 1101 is configured to detect whether a wireless link established between the user equipment and the second network device fails.
  • the interface unit 1102 is configured to: when the detecting unit 1101 detects that the wireless link established between the user equipment and the second network device fails, send a first message to the first network device, where the first message is used to indicate the user equipment The wireless link established with the second network device fails.
  • the detecting unit 1101 is specifically configured to:
  • the established wireless link fails, where the first wireless link is any wireless link established between the user equipment and the second network device; or
  • the road fails, where the first wireless link is any wireless link established between the user equipment and the second network device; or Determining a wireless chain established between the user equipment and the second network device when detecting that the number of times that the second network device controls the RLC downlink data by using the first radio bearer retransmission radio link reaches or exceeds the maximum number of retransmissions of the RLC downlink data
  • the first radio bearer is any radio bearer that the second network device serves for the user equipment, and is carried on one or more wireless links established between the user equipment and the second network device; or ,
  • the link fails, where the first wireless link is any wireless link established between the user equipment and the second network device;
  • the wireless link fails, where the first wireless link is any wireless link established between the user equipment and the second network device.
  • the interface unit 1102 is further configured to receive configuration parameters sent by the first network device, where the configuration parameter includes one or more of the following parameters:
  • the maximum number of attempts to receive random access requests the maximum number of PDCCH retransmissions, the maximum number of retransmissions of RLC downlink data, the preset error block rate, and the preset error rate.
  • the first message carries the identifier of the user equipment, and the link failure related identifier, and the link failure related identifier includes one or more of the following identifiers:
  • the identifier of the cell corresponding to the failed radio link The identifier of the cell corresponding to the failed radio link, the identifier of the secondary cell group SCG to which the cell corresponding to the failed radio link belongs, the identifier of the time-advance group TAG of the cell to which the failed radio link belongs, and the wireless failure The identifier of the bearer corresponding to the link.
  • the first message carries a link failure reason.
  • the reason for the failure of the link includes: the number of times the random access request is received reaches or exceeds the maximum number of attempts to receive the random access request, the number of retransmissions of the PDCCH reaches or exceeds the maximum number of PDCCH retransmissions, and the number of RLC downlink data retransmissions reaches Or exceed the maximum number of retransmissions of the RLC downlink data, the block error rate of the uplink data reaches or exceeds the preset error block rate, the error rate of the uplink data reaches or exceeds the preset error rate, the uplink reception problem, or the downlink transmission problem.
  • the interface unit 1102 is further configured to receive an indication message sent by the first network device, where the indication message is used to indicate that the second network device releases the resource that is served by the user equipment.
  • the releasing unit 1103 is configured to release, according to the indication message, a resource that is served by the user equipment. Further, the releasing unit 1103 is specifically configured to:
  • the indication message includes the identifier of the user equipment, release the resource serving the user equipment; or,
  • the indication message includes the identifier of the user equipment and the identifier of the cell, releasing the resource of the cell served by the user equipment;
  • the indication message includes the identifier of the user equipment and the identifier of the TAG, releasing the resource of the TAG serving the user equipment;
  • the indication message includes the identifier of the user equipment and the identifier of the cell that the TAG includes, releasing the resource of the cell controlled by the second network device included in the TAG served by the UE;
  • the indication message includes the identifier of the user equipment and the identifier of the bearer
  • the resource of the bearer service of the user equipment is released.
  • the interface unit in this embodiment may be an interface circuit in which the second network device communicates with the first network device.
  • the detecting unit may be a separately set processor, or may be implemented in one processor of the second network device, or may be stored in the memory of the second network device in the form of program code, by the second network device.
  • One of the processors calls and executes the functions of the above detection unit.
  • the implementation of the release unit is the same as the detection unit and can be integrated with the detection unit or independently.
  • the processor described herein may be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated systems configured to implement embodiments of the present invention. Circuit.
  • the secondary base station when the secondary base station detects that a radio link failure occurs between itself and the UE, the secondary base station reports a message to the primary base station to notify the primary base station that a radio link failure has occurred between the UE and the secondary base station.
  • the master base station is made aware that the radio link failure occurs between the UE and the secondary base station, so unnecessary operations such as SRB reconstruction and secure reactivation may be omitted.
  • the primary base station may further process the radio link failure, for example, releasing related resources of the secondary base station and/or the UE, so that the secondary base station re-allocates resources for the UE as soon as possible, effectively shortening the user caused by the wireless link failure.
  • the data interruption time improves the user experience.
  • An embodiment of the present invention provides a device for detecting a failure of a radio link, which is located on the first network device side.
  • the device includes: a transceiver unit 1301, configured to communicate with a user equipment;
  • the interface unit 1302 is configured to communicate with the second network device.
  • the acquiring unit 1303 is configured to acquire, by using the transceiver unit 1301 or the interface unit 1302, the first message from the user equipment or the second network device, where the first message is that the wireless link established between the user equipment and the second network device fails. Reporting to the first network device by the user equipment or the second network device;
  • the determining unit 1304 is configured to determine, according to the first message, that a wireless link established between the user equipment and the second network device fails.
  • the first message carries a link failure correlation identifier
  • the link failure correlation identifier includes one or more of the following identifiers:
  • the identifier of the cell corresponding to the failed radio link The identifier of the cell corresponding to the failed radio link, the identifier of the secondary cell group SCG to which the cell corresponding to the failed radio link belongs, the identifier of the time-advance group TAG of the cell to which the failed radio link belongs, and the wireless failure The identifier of the bearer corresponding to the link.
  • the first message further carries an identifier of the user equipment.
  • the first message carries a link failure reason.
  • the reasons for the link failure include: random access problem, the number of retransmissions of the random access pilot code reaches or exceeds the maximum number of retransmissions of the RLC uplink data, and the number of retransmissions of the RLC uplink data reaches or exceeds the maximum number of retransmissions of the RLC uplink data.
  • the timer expires, the reconfiguration fails, the number of times the random access request is received reaches or exceeds the maximum number of attempts to receive the random access request, the number of retransmissions of the PDCCH reaches or exceeds the maximum number of PDCCH retransmissions, and the number of RLC downlink data retransmissions reaches Or exceed the maximum number of retransmissions of the RLC downlink data, the block error rate of the uplink data reaches or exceeds the preset error block rate, the error rate of the uplink data reaches or exceeds the preset error rate, the uplink reception problem, or the downlink transmission problem.
  • the determining unit 1304 is further configured to:
  • the triggering transceiver unit 1301 sends a second message to the user equipment, where the second message is used to indicate that the user equipment releases the cell, the secondary cell group SCG, the time advance group TAG or the bearer; and/or,
  • the triggering interface unit 1302 sends a third message to the second network device, where the third message is used to instruct the second network device to release the resources serving the user equipment.
  • the determining unit 1304 is further configured to trigger the transceiver unit 1301 to send the second message carrying the first release identifier to the user equipment, where:
  • the first release identifier includes the failure to occur.
  • the first release identifier is determined according to the link failure correlation identifier.
  • the link failure correlation identifier includes an identifier of a cell corresponding to the failed radio link
  • the first release identifier includes an identifier of the cell
  • the first release identifier includes an identifier of the SCG, an identifier of a cell included in the SCG, an identifier of a primary cell included in the SCG, or the identifier The identifier of the bearer served by the SCG; or,
  • the first release identifier includes the identifier of the TAG or the identifier of the cell included in the TAG; or, when the link failure related identifier includes The identifier of the bearer corresponding to the failed radio link, where the first release identifier includes the identifier of the SCG of the serving bearer, the identifier of the cell included in the SCG, the identifier of the primary cell included in the SCG, or the identifier of the bearer served by the SCG.
  • the determining unit 1304 is further configured to trigger the interface unit 1302 to send a third message carrying the second release identifier to the second network device, where:
  • the second release identifier includes the identifier of the user equipment ⁇ or,
  • the second release identifier is determined according to the link failure related identifier.
  • the link failure correlation identifier includes the identifier of the cell corresponding to the failed radio link
  • the second release identifier includes the identifier of the user equipment and the identifier of the cell
  • the link failure correlation identifier includes the identifier of the SCG to which the cell corresponding to the failed radio link belongs
  • the second release identifier includes the identifier of the user equipment
  • the second release identifier includes the identifier of the user equipment and the identifier of the TAG, or includes the identifier of the user equipment and the cell included in the TAG. Identification; or,
  • the second release identifier includes the identifier of the user equipment, or includes the identifier of the user equipment and serves the bearer.
  • transceiver unit 1301 is further specifically configured to:
  • the first configuration parameter includes one or more of the following parameters: a maximum number of retransmissions of the random access pilot code, a timer duration, and a maximum retransmission of the radio link control RLC uplink data. Number of times; and/or
  • the second configuration parameter includes one or more of the following parameters: a maximum number of attempts to receive the random access request, a maximum number of retransmissions of the physical downlink control channel PDCCH, and a maximum weight of the RLC downlink data The number of transmissions, the preset error block rate, and the preset error rate.
  • the receiving unit in this embodiment may be a receiver of the first network device; in addition, the receiving unit and the transceiver unit may be integrated to form a transceiver of the first network device.
  • the obtaining unit may be a separately set processor, or may be implemented in one processor of the first network device, or may be stored in the memory of the first network device in the form of program code, by the first network device.
  • One of the processors calls and executes the functions of the above acquisition unit.
  • the implementation of the unit is determined to be the same as the acquisition unit, and may be integrated with the acquisition unit or independently.
  • the processor described herein may be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated systems configured to implement embodiments of the present invention. Circuit.
  • the message is reported to the primary base station to notify the primary base station that a wireless link occurs between the UE and the secondary base station.
  • the master base station is made aware that the radio link failure occurs between the UE and the secondary base station, so unnecessary operations such as SRB reconstruction and secure reactivation may not be performed.
  • the primary base station may further process the radio link failure, for example, releasing related resources of the secondary base station and/or the UE, so that the secondary base station re-allocates resources for the UE as soon as possible, effectively shortening the user caused by the wireless link failure.
  • the data interruption time improves the user experience.
  • FIG. 14 is a schematic structural diagram of another embodiment of the UE according to the present invention.
  • the UE includes a receiver 1401, a transmitter 1402, a memory 1403, and a processor 1404.
  • the receiver 1401, the transmitter 1402, and the memory 1403 are all connected to the processor 1404, for example, may be connected through a bus.
  • the UE may also include a common component such as an antenna, a baseband processing component, a medium-frequency processing component, and an input/output device.
  • Receiver 1401 and transmitter 1402 can be integrated to form a transceiver.
  • Memory 1403 is for storing executable program code, the program code including computer operating instructions.
  • Memory 1403 may include high speed RAM memory and may also include non-volatile memory, such as at least one disk memory.
  • the processor 1404 can be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • the processor 1404 executes the program code stored in the memory 1403 to detect whether the wireless link established between the UE and the second network device fails, when detecting that the wireless link established between the UE and the second network device fails. And transmitting, by the transmitter 1402, the first message to the first network device, where the first message is used to indicate that the wireless link established between the user equipment and the second network device fails.
  • the processor 1404 detects the failure of the wireless link established between the UE and the second network device, and the description of the detecting unit 901 in the first embodiment, the second embodiment, and the fifth embodiment is not described herein. Narration.
  • the parameter used by the processor 1404 to detect whether the wireless link established between the UE and the second network device fails may be acquired by the receiver 1401 from the first network device, or may be obtained by the receiver 1401 from the second device.
  • the content obtained by the network device is the same as the first embodiment, the second embodiment, and the fifth embodiment, and details are not described herein again.
  • the content of the first message is the same as the first embodiment, the second embodiment, and the fifth embodiment, and details are not described herein again.
  • the processor 1404 may further receive, by using the receiver 1401, an indication message sent by the first network device, where the indication message is used to indicate that the UE releases the cell and the secondary cell group SCG.
  • the time advance group TAG or bearer; the processor 1404 is further configured to release the cell, the SCG, the TAG, or the bearer according to the indication message.
  • the process of the processor 1404 releasing the cell, the SCG, the TAG or the carrier is the same as the first embodiment, the second embodiment and the fifth embodiment, and details are not described herein again.
  • the user equipment when the user equipment detects that the radio link fails between the self and the secondary base station, the user equipment reports a message to the primary base station to notify the primary base station that a radio link failure has occurred between the UE and the secondary base station.
  • the primary base station is made aware that the radio link failure occurs between the UE and the secondary base station, so unnecessary operations such as SRB reconstruction and secure reactivation may not be performed.
  • the primary base station may further process the radio link failure, for example, release related resources of the secondary base station and/or the UE, The secondary base station re-allocates resources for the UE as early as possible, effectively shortening the user data interruption time caused by the wireless link failure, and improving the user experience.
  • the first network device includes a receiver 1501, a transmitter 1502, a memory 1503, an interface circuit 1505, and a processor 1504.
  • the receiver 1501, the transmitter 1502, the interface circuit 1505, and the memory 1503 are all connected to the processor 1504, for example, may be connected through a bus.
  • the first network device may also include a common component such as an antenna, a baseband processing component, a medium-frequency processing component, and an input/output device.
  • the embodiment of the present invention is not limited herein.
  • Receiver 1501 and transmitter 1502 can be integrated to form a transceiver.
  • the memory 1503 is for storing executable program code, the program code including computer operating instructions.
  • the memory 1503 may include a high speed RAM memory and may also include a non-volatile memory such as at least one disk memory.
  • the processor 1504 can be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • the interface circuit 1505 is used to connect to other network devices, for example, a fiber optic interface to enable communication with the second network device through the optical fiber.
  • the processor 1504 is configured to obtain, by using the interface circuit 1505 or the receiver 1501, a first message from the second network device or the UE, where the first message is that the second network device or the UE detects the wireless established between the UE and the second network device.
  • the link fails, the second network device or the UE reports the first network device; after the processor 1504 obtains the first message, it can determine that the wireless link established between the UE and the second network device fails. .
  • the processor 1504 can also perform subsequent processing on the failure.
  • the indication message (the second message and the third message) is sent to the UE and the second network device by using the transmitter 1502 and the interface circuit 1505, respectively, to respectively indicate that the UE releases the cell, the secondary cell group SCG, the time advance group TAG, or the bearer. Instructing the second network device to release resources serving the UE.
  • the processor 1504 may also send an indication message only to the UE or only to the second network device.
  • indication messages for example, the second message and the third message
  • the descriptions of the indication messages are the same as the above embodiments, and are not described herein again.
  • the content of the first message is the same as the above embodiment, and details are not described herein again.
  • the processor 1504 may further configure a parameter that the UE and the second network device detect the link failure.
  • the processor 1504 may send the configuration parameter to the UE by using the transmitter 1502, so that the UE detects the establishment between the UE and the second network device. Whether the wireless link fails or not, the configuration parameters are the same as those in the foregoing Embodiments 1, 2, and 5, and are not described herein again.
  • the processor 1504 can send configuration parameters to the second network device through the interface circuit 1505, so that the second network device detects whether the wireless link established between the UE and the second network device fails, and the configuration parameter is the same as the above implementation. The descriptions of the third, fourth and sixth are not repeated here.
  • the message is reported to the primary base station to notify the primary base station that a wireless link occurs between the UE and the secondary base station.
  • the master base station is made aware that the radio link failure occurs between the UE and the secondary base station, so unnecessary operations such as SRB reconstruction and secure reactivation may not be performed.
  • the primary base station may further process the radio link failure, for example, releasing related resources of the secondary base station and/or the UE, so that the secondary base station re-allocates resources for the UE as soon as possible, effectively shortening the user caused by the wireless link failure.
  • the data interruption time improves the user experience. Example ten
  • FIG. 16 is a schematic structural diagram of another embodiment of the second network device according to the present invention.
  • the second network device includes a receiver 1601, a transmitter 1602, a memory 1603, an interface circuit 1605, and a processor 1604.
  • the receiver 1601, the transmitter 1602, the interface circuit 1605, and the memory 1603 are all connected to the processor 1604, for example, may be connected through a bus.
  • the second network device may also include a common component such as an antenna, a baseband processing component, a medium-frequency processing component, and an input/output device.
  • the embodiment of the present invention is not limited herein.
  • Receiver 1601 and transmitter 1602 can be integrated to form a transceiver.
  • Memory 1603 is for storing executable program code, the program code including computer operating instructions.
  • Memory 1603 may include high speed RAM memory and may also include non-volatile memory, such as at least one disk memory.
  • the processor 1604 can be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention.
  • the interface circuit 1605 is used to connect with other network devices, for example, may be a fiber optic interface to implement communication with the second network device through the optical fiber.
  • the processor 1604 executes the program code stored in the memory 1603 to detect whether a wireless link established between the UE and the second network device fails, when detecting that the wireless link established between the UE and the second network device fails.
  • the first message is sent to the first network device by the interface circuit 1605, where the first message is used to indicate that the wireless link established between the user equipment and the second network device fails.
  • the processor 1604 detects whether the wireless link established between the UE and the second network device fails, and the description of the detecting unit 1101 in the third embodiment, the fourth embodiment, and the sixth embodiment is not described herein. Narration.
  • the parameter used by the processor 1604 to detect whether the wireless link established between the UE and the second network device fails may be acquired by the interface circuit 1605 from the first network device, or may be preset locally. The contents are the same as the above embodiments 3, 4 and 6, and will not be repeated here.
  • the content of the first message is the same as the above embodiments 3, 4 and 6, and will not be further described herein.
  • the processor 1604 may further receive, by using the interface circuit 1605, an indication message sent by the first network device, where the indication message is used to indicate that the resource serving the UE is released;
  • the device 1604 is further configured to release resources serving the UE according to the indication message.
  • the process of the processor 1404 serving the resources of the UE is the same as the above embodiments 3, 4 and 6, and will not be described again.
  • the secondary base station when the secondary base station detects that the radio link fails between the UE and the UE, the secondary base station reports a message to the primary base station to notify the primary base station that a radio link failure has occurred between the UE and the secondary base station.
  • the primary base station is made aware that the radio link failure occurs between the UE and the secondary base station, so unnecessary operations such as SRB reconstruction and secure reactivation may not be performed.
  • the primary base station may further process the radio link failure, for example, releasing related resources of the secondary base station and/or the UE, so that the secondary base station re-allocates resources for the UE as soon as possible, effectively shortening the user caused by the wireless link failure.
  • the data interruption time improves the user experience.

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Abstract

本发明提供了一种无线链路失败的处理方法及设备,涉及无线通信领域。该方法包括:用户设备(UE)检测UE与第二网络设备之间建立的无线链路是否发生失败(S301);当检测到UE与第二网络设备之间建立的无线链路发生失败时,UE向第一网络设备与发送第一消息,第一消息用于指示UE与第二网络设备之间建立的无线链路发生失败(S302)。该设备包括:检测单元(901)和发送单元(902)。本发明当UE与第二网络设备之间建立的无线链路发生失败时,第一网络设备可以及时获知,可以不再进行信令无线承载(SRB)重建和安全的重新激活等不必要的操作。第一网络设备还可以及时地对该无线链路失败作进一步处理,缩短了无线链路失败弓I起的用户数据传输中断时间,提高了用户的使用体验。

Description

一种无线链路失败的处理方法及设备 技术领域
本发明涉及无线通信领域, 特别涉及一种无线链路失败的处理方法及设 备。 背景技术
随着通信技术的发展, 一种网络部署已经逐渐被引入到下一代无线网络 中。 如图 1所示, 在这种网络部署中有两种基站, 分别是主基站 110和辅基站 120。 用户设备( User Equipment, UE )可以同时和一个主基站以及一个或者多 个辅基站建立无线链路。 例如, UE可以同时和主基站的多个小区建立无线链 路, 并且同时和每个辅基站的多个小区建立无线链路。 其中, 和 UE建立无线 链路的主基站的多个小区属于主小区组(Master Cell Group, MCG ), 和 UE建 立无线链路的每个辅基站的多个小区属于一个辅小区组 (Secondary Cell Group, SCG ), 即 UE可以同时和一个 MCG和多个 SCG建立无线链路。
目前, 当 UE检测到无线链路失败时, 会采用如图 2所示的重建过程从该 无线链路失败中恢复。 如图 2所示, 该重建过程包括:
S210: UE向主基站发送重建请求消息。
S220 : 主基站向 UE 发送重建消息, 该消息可以包括信令无线承载 ( Signaling Radio Bearer, SRB )相关配置和下一跳链式计数( Next Hop Chaining Count, NCC ), 以便 UE根据 SRB相关配置重建 SRB, 并根据 NCC推衍新安 全密钥。
S220: UE向主基站发送重建完成消息, 该消息的发送使用重建的 SRB和 新的安全密钥。
以上过程重建了 UE和主基站间的 SRB , 并且重新激活了 UE和主基站间 的安全。 但是, 当 UE和辅基站之间的无线链路发生失败, 而 UE和主基站之 间的无线链路并没有发生失败时, UE和主基站之间的 SRB重建和安全的重新 激活实际上延长了无线链路失败所造成的用户数据中断时间, 降低了用户的使 用体验。 可见, 现有的无线链路失败的处理方法效力不佳, 不利于提高用户体 验。 发明内容
本发明实施例提供了一种无线链路失败的处理方法及设备, 以在 UE与辅 基站之间发生无线链路失败时, 提供一种有效解决方式。 所述技术方案如下: 第一方面, 提供了一种无线链路失败的处理方法, 所述方法包括: 用户设备检测所述用户设备与第二网络设备之间建立的无线链路是否发 生失败;
当检测到所述用户设备与所述第二网络设备之间建立的无线链路发生失 败时, 所述用户设备向第一网络设备发送第一消息, 所述第一消息用于指示所 述用户设备与所述第二网络设备之间建立的无线链路发生失败。
结合第一方面, 在上述第一方面的第一种可能的实现方式中, 所述用户设 备检测所述用户设备与第二网络设备之间建立的无线链路是否发生失败, 包 括:
当检测到所述用户设备通过第一无线链路重传随机接入请求的次数达到 或超过随机接入导频码最大重传次数时, 确定所述用户设备与所述第二网络设 备之间建立的无线链路发生失败, 其中, 所述第一无线链路为所述用户设备与 所述第二网络设备之间建立的任一无线链路; 或,
当检测到第一小区对应的定时器达到或超过定时器时长时,确定所述用户 设备与所述第二网络设备之间建立的无线链路发生失败, 其中, 所述第一小区 为所述第二网络设备的任一小区; 或,
当检测到所述用户设备通过第一无线承载重传无线链路控制 RLC上行数 据的次数达到或超过 RLC上行数据最大重传次数时, 确定所述用户设备与所 述第二网络设备之间建立的无线链路发生失败, 其中, 所述第一无线承载为所 述第二网络设备为所述用户设备服务的任一无线承载, 且承载在所述用户设备 与所述第二网络设备之间建立的一个或多个无线链路上。
结合第一方面的第一种可能的实现方式, 在上述第一方面的第二种可能的 实现方式中, 所述用户设备检测所述用户设备与第二网络设备之间建立的无线 链路是否发生失败之前, 还包括:
接收配置参数, 所述配置参数包括以下参数中的一个或多个: 所述随机接入导频码最大重传次数、 所述定时器时长、 和所述 RLC上行 数据最大重传次数; 其中, 所述配置参数是由所述第一网络设备从所述第二网 络设备获取并发送给所述用户设备; 或者所述配置参数是由所述第二网络设备 发送给所述用户设备。
结合第一方面、第一方面的第一种可能的实现方式或者第一方面的第二种 可能的实现方式, 在上述第一方面的第三种可能的实现方式中, 所述第一消息 携带链路失败相关标识, 且所述链路失败相关标识包括以下标识中的一个或多 个:
发生失败的无线链路对应的小区的标识、发生失败的无线链路对应的小区 所属辅小区组 SCG的标识、 发生失败的无线链路对应的小区所属时间提前组 TAG的标识和发生失败的无线链路对应的 载的标识。
结合第一方面、 第一方面的第一种可能的实现方式、 第一方面的第二种可 能的实现方式或者第一方面的第三种可能的实现方式, 在上述第一方面的第四 种可能的实现方式中, 所述第一消息携带链路失败原因。
结合第一方面的第四种可能的实现方式, 在上述第一方面的第五种可能的 实现方式中, 所述链路失败原因包括: 随机接入问题、 随机接入导频码的重传 次数达到或超过随机接入导频码的最大重传次数、 RLC上行数据重传次数达到 或超过 RLC上行数据最大重传次数、 定时器超时、 或重配置失败。
结合第一方面、 第一方面的第一种可能的实现方式、 第一方面的第二种可 能的实现方式、 第一方面的第三种可能的实现方式、 第一方面的第四种可能的 实现或者第一方面的第五种可能的实现方式, 在上述第一方面的第六种可能的 实现方式中, 所述用户设备向第一网络设备发送第一消息之后, 还包括:
接收所述第一网络设备发送的指示消息, 所述指示消息用于指示所述用户 设备释放小区、 辅小区组 SCG、 时间提前组 TAG或者承载;
根据所述指示消息, 释放小区、 SCG、 TAG或承载。
结合第一方面的第六种可能的实现方式, 在上述第一方面的第七种可能的 实现方式中, 所述根据所述指示消息, 释放小区、 SCG、 TAG或承载, 包括: 当所述指示消息不携带释放标识时, 释放所述第二网络设备对应的 SCG; 当所述指示消息携带释放标识时,根据所述释放标识释放小区、 SCG、 TAG 或者承载。
结合第一方面的第七种可能的实现方式, 在上述第一方面的第八种可能的 实现方式中, 所述根据所述释放标识释放小区、 SCG、 TAG或者承载, 包括: 当所述释放标识为小区的标识且所述小区为 SCG 中的辅小区, 释放所述 小区;
当所述释放标识为小区的标识且所述小区为 SCG 中的主小区、 或当所述 释放标识为 SCG的标识、 或当所述释放标识为所述 SCG包含的所有小区的标 识, 释放所述 SCG;
当所述释放标识为 TAG的标识, 释放所述 TAG;
当所述释放标识为 TAG中的小区的标识, 释放所述 TAG中所述第二网络 设备控制的所述小区; 或
当所述释放标识为 SCG所服务的承载的标识, 释放所述 SCG所服务的承 载。 第二方面, 提供了一种无线链路失败的处理方法, 所述方法包括: 第二网络设备检测用户设备与所述第二网络设备之间建立的无线链路是 否发生失败;
当检测到所述用户设备与所述第二网络设备之间建立的无线链路发生失 败时, 所述第二网络设备向第一网络设备传送第一消息, 所述第一消息用于指 示所述用户设备与所述第二网络设备之间建立的无线链路发生失败。
结合第二方面, 在上述第二方面的第一种可能的实现方式中, 所述第二网 络设备检测用户设备与所述第二网络设备之间建立的无线链路是否发生失败, 包括:
当检测到所述第二网络设备通过第一无线链路尝试接收所述用户设备发 送的随机接入请求的次数达到或超过尝试接收随机接入请求的最大次数时, 确 定所述用户设备与所述第二网络设备之间建立的无线链路发生失败, 其中所述 第一无线链路为所述用户设备与所述第二网络设备之间建立的任一无线链路; 或,
当检测到所述第二网络设备通过第一无线链路向所述用户设备发送物理 下行控制信道 PDCCH信息达到或超过 PDCCH最大重传次数时, 确定所述用 户设备与所述第二网络设备之间建立的无线链路发生失败, 其中所述第一无线 链路为所述用户设备与所述第二网络设备之间建立的任一无线链路; 或,
当检测到所述第二网络设备通过第一无线承载重传无线链路控制 RLC下 行数据的次数达到或超过 RLC下行数据最大重传次数时, 确定所述用户设备 与所述第二网络设备之间建立的无线链路发生失败, 其中所述第一无线承载为 所述第二网络设备为所述用户设备服务的任一无线承载,且承载在所述用户设 备与所述第二网络设备之间建立的一个或多个无线链路上; 或,
当检测到所述第二网络设备通过第一无线链路接收到的所述用户设备发 送的上行数据的误块率大于或等于预设误块率时,确定所述用户设备与所述第 二网络设备之间建立的无线链路发生失败, 其中所述第一无线链路为所述用户 设备与所述第二网络设备之间建立的任一无线链路; 或,
当检测到所述第二网络设备通过第一无线链路接收到的所述用户设备发 送的上行数据的误码率大于或等于预设误码率时,确定所述用户设备与所述第 二网络设备之间建立的无线链路发生失败, 其中所述第一无线链路为所述用户 设备与所述第二网络设备之间建立的任一无线链路。
结合第二方面的第一种可能的实现方式, 在上述第二方面的第二种可能的 实现方式中, 所述第二网络设备检测用户设备与所述第二网络设备之间建立的 无线链路是否发生失败之前, 还包括:
接收所述第一网络设备发送的配置参数, 所述配置参数包括以下参数中的 一个或多个:
所述尝试接收随机接入请求的最大次数、 所述 PDCCH最大重传次数、 所 述 RLC下行数据最大重传次数、 所述预设误块率、 和所述预设误码率。
结合第二方面、第二方面的第一种可能的实现方式或者第二方面的第二种 可能的实现方式, 在上述第二方面的第三种可能的实现方式中, 所述第一消息 携带所述用户设备的标识, 以及链路失败相关标识, 且所述链路失败相关标识 包括以下标识中的一个或多个:
发生失败的无线链路对应的小区的标识、发生失败的无线链路对应的小区 所属辅小区组 SCG的标识、 发生失败的无线链路对应的小区所属时间提前组 TAG的标识和发生失败的无线链路对应的 载的标识。
结合第二方面、 第二方面的第一种可能的实现方式、 第二方面的第二种可 能的实现方式或者第二方面的第三种可能的实现方式, 在上述第二方面的第四 种可能的实现方式中, 所述第一消息携带链路失败原因。
结合第二方面的第四种可能的实现方式, 在上述第二方面的第五种可能的 实现方式中, 所述链路失败原因包括: 随机接入问题、 接收随机接入请求的次 数达到或超过尝试接收随机接入请求的最大次数、 PDCCH 的重传次数达到或 超过 PDCCH最大重传次数、 RLC下行数据重传次数达到或超过 RLC下行数 据最大重传次数、 上行数据的误块率达到或超过预设误块率、 上行数据的误码 率达到或超过预设误码率、 上行接收问题、 或下行发送问题。
结合第二方面、 第二方面的第一种可能的实现方式、 第二方面的第二种可 能的实现方式、 第二方面的第三种可能的实现方式、 第二方面的第四种可能的 实现方式或者第二方面的第五种可能的实现方式,在上述第二方面的第六种可 能的实现方式中, 所述第二网络设备向第一网络设备发送第一消息之后, 还包 括:
接收所述第一网络设备发送的指示消息, 所述指示消息用于指示所述第二 网络设备释放为所述用户设备服务的资源;
根据所述指示消息, 释放为所述用户设备服务的资源。
结合第二方面的第六种可能的实现方式, 在上述第二方面的第七种可能的 实现方式中, 所述根据所述指示消息释放为所述用户设备服务的资源, 包括: 当所述指示消息包括所述用户设备的标识时,释放为所述用户设备服务的 资源; 或,
当所述指示消息包括所述用户设备的标识和小区的标识时,释放为所述用 户设备服务的所述小区的资源; 或,
当所述指示消息包括所述用户设备的标识和 TAG的标识时, 释放为所述 用户设备服务的所述 TAG的资源; 或,
当所述指示消息包括所述用户设备的标识和所述 TAG中的小区的标识时, 释放为所述用户设备服务的所述 TAG 包含的所述第二网络设备控制的所述小 区的资源; 或,
当所述指示消息包括所述用户设备的标识和承载的标识时,释放为所述用 户设备的所述承载服务的资源。
第三方面, 提供了一种无线链路失败的处理方法, 所述方法包括: 第一网络设备接收第一消息, 所述第一消息为用户设备与第二网络设备之 间建立的无线链路发生失败时, 由所述用户设备或所述第二网络设备上报给所 述第一网络设备的;
所述第一网络设备根据所述第一消息确定所述用户设备与所述第二网络 设备之间建立的无线链路发生失败。 结合第三方面, 在上述第三方面的第一种可能的实现方式中, 所述第一消 息携带链路失败相关标识, 且所述链路失败相关标识包括以下标识中的一个或 发生失败的无线链路对应的小区的标识、发生失败的无线链路对应的小区 所属辅小区组 SCG的标识、 发生失败的无线链路对应的小区所属时间提前组 TAG的标识和发生失败的无线链路对应的 载的标识。
结合第三方面的第一种可能的实现方式, 在上述第三方面的第二种可能的 实现方式中, 所述第一消息还携带所述用户设备的标识。
结合第三方面、第三方面的第一种可能的实现方式或者第三方面的第二种 可能的实现方式, 在上述第三方面的第三种可能的实现方式中, 所述第一消息 携带链路失败原因。
结合第三方面的第三种可能的实现方式, 在上述第三方面的第四种可能的 实现方式中, 所述链路失败原因包括: 随机接入问题、 随机接入导频码的重传 次数达到或超过 RLC上行数据最大重传次数、 RLC上行数据重传次数达到或 超过 RLC上行数据最大重传次数、 定时器超时、 重配置失败、 接收随机接入 请求的次数达到或超过尝试接收随机接入请求的最大次数、 PDCCH 的重传次 数达到或超过 PDCCH最大重传次数、 RLC下行数据重传次数达到或超过 RLC 下行数据最大重传次数、 上行数据的误块率达到或超过预设误块率、 上行数据 的误码率达到或超过预设误码率、 上行接收问题、 或下行发送问题。
结合第三方面、 第三方面的第一种可能的实现方式、 第三方面的第二种可 能的实现方式、第三方面的第三种可能的实现方式或者第三方面的第四种可能 的实现方式, 在上述第三方面的第五种可能的实现方式中, 所述第一网络设备 根据所述第一消息确定所述用户设备与所述第二网络设备之间建立的无线链 路发生失败之后, 还包括: 根据所述第一消息向所述用户设备发送第二消息, 所述第二消息用于指示所述用户设备释放小区、 辅小区组 SCG、 时间提前组 TAG或者承载; 和 /或, 根据所述第一消息向所述第二网络设备发送第三消息, 所述第三消息用于指示所述第二网络设备释放为所述用户设备服务的资源。
结合第三方面的第五种可能的实现方式, 在上述第三方面的第六种可能的 实现方式中, 所述根据所述第一消息向所述用户设备发送第二消息, 包括: 如果所述第一消息不携带链路失败相关标识,将所述发生失败的无线链路 对应的小区所属 SCG的标识、 所述 SCG包含的小区的标识、 所述 SCG包含 的主小区的标识、 或者所述 SCG所服务的承载的标识确定为第一释放标识; 如果所述第一消息携带链路失败相关标识,根据所述链路失败相关标识确 定第一释放标识;
向所述用户设备发送第二消息, 所述第二消息携带所述第一释放标识。 结合第三方面的第六种可能的实现方式, 在上述第三方面的第七种可能的 实现方式中, 所述根据所述链路失败相关标识确定第一释放标识, 包括:
当所述链路失败相关标识包括发生失败的无线链路对应的小区的标识, 将 所述小区的标识确定为第一释放标识; 或,
当所述链路失败相关标识包括发生失败的无线链路对应的小区所属 SCG 的标识, 将所述 SCG的标识、 所述 SCG包含的小区的标识、 所述 SCG包含 的主小区的标识或者所述 SCG所服务的承载的标识确定为第一释放标识; 或, 当所述链路失败相关标识包括发生失败的无线链路对应的小区所属 TAG 的标识, 将所述 TAG的标识或者所述 TAG包含的小区的标识确定为第一释放 标识 ^ 或,
当所述链路失败相关标识包括发生失败的无线链路对应的承载的标识, 将 服务所述承载的 SCG的标识、 所述 SCG包含的小区的标识、 所述 SCG包含 的主小区的标识或者所述 SCG所服务的承载的标识确定为第一释放标识。
结合第三方面的第五种可能的实现方式, 在上述第三方面的第八种可能的 实现方式中,所述根据所述第一消息向所述第二网络设备发送第三消息,包括: 如果所述第一消息不携带链路失败相关标识,将所述用户设备的标识确定 为第二释放标识;
如果所述第一消息携带链路失败相关标识,根据所述链路失败相关标识确 定第二释放标识;
向所述第二网络设备发送第三消息, 所述第三消息携带所述第二释放标 识。
结合第三方面的第八种可能的实现方式, 在上述第三方面的第九种可能的 实现方式中, 所述根据所述链路失败相关标识确定第二释放标识, 包括:
当所述链路失败相关标识包括发生失败的无线链路对应的小区的标识, 将 所述用户设备的标识和所述小区的标识确定为第二释放标识; 或,
当所述链路失败相关标识包括发生失败的无线链路对应的小区所属 SCG 的标识, 将所述用户设备的标识确定为第二释放标识; 或, 当所述链路失败相关标识包括发生失败的无线链路对应的小区所属 TAG 的标识, 将所述用户设备的标识和所述 TAG的标识确定为第二释放标识, 或 者将所述用户设备的标识和所述 TAG包含的小区的标识确定为第二释放标识; 或,
当所述链路失败相关标识包括发生失败的无线链路对应的承载的标识, 将 所述用户设备的标识确定为第二释放标识, 或者将所述用户设备的标识和服务 所述承载的 SCG所服务的承载的标识确定为第二释放标识。
结合第三方面或者第三方面的第一种可能的实现方式至第三方面的第九 种可能的实现方式中的任一种可能的实现方式, 在上述第三方面的第十种可能 的实现方式中, 所述接收第一消息之前, 还包括:
向所述用户设备发送第一配置参数, 所述第一配置参数包括以下参数中的 一个或多个: 随机接入导频码最大重传次数、 定时器时长、 和无线链路控制 RLC上行数据最大重传次数; 和 /或
向所述第二网络设备发送第二配置参数, 所述第二配置参数包括以下参数 中的一个或多个: 尝试接收随机接入请求的最大次数、 物理下行控制信道 PDCCH最大重传次数、 RLC下行数据最大重传次数、 预设误块率、 和预设误 码率。
第四方面, 提供了一种无线链路失败的处理设备, 位于用户设备侧, 所述 设备包括:
检测单元, 用于检测所述用户设备与第二网络设备之间建立的无线链路是 否发生失败;
发送单元, 用于在检测单元检测到所述用户设备与所述第二网络设备之间 建立的无线链路发生失败时, 向第一网络设备发送第一消息, 所述第一消息用 于指示所述用户设备与所述第二网络设备之间建立的无线链路发生失败。
结合第四方面, 在上述第四方面的第一种可能的实现方式中, 所述检测单 元具体用于:
当检测到所述用户设备通过第一无线链路重传随机接入请求的次数达到 或超过随机接入导频码最大重传次数时, 确定所述用户设备与所述第二网络设 备之间建立的无线链路发生失败, 其中, 所述第一无线链路为所述用户设备与 所述第二网络设备之间建立的任一无线链路; 或,
当检测到第一小区对应的定时器达到或超过定时器时长时,确定所述用户 设备与所述第二网络设备之间建立的无线链路发生失败, 其中, 所第一小区为 所述第二网络设备的任一小区; 或,
当检测到所述用户设备通过第一无线承载重传无线链路控制 RLC上行数 据的次数达到或超过 RLC上行数据最大重传次数时, 确定所述用户设备与第 二网络设备之间建立的无线链路发生失败, 其中, 所述第一无线承载为所述第 二网络设备为所述用户设备服务的任一无线承载,且承载在所述用户设备与所 述第二网络设备之间建立的一个或多个无线链路上。
结合第四方面的第一种可能的实现方式, 在上述第四方面的第二种可能的 实现方式中, 还包括:
接收单元, 用于接收配置参数, 所述配置参数包括以下参数中的一个或多 个:
所述随机接入导频码最大重传次数、 所述定时器时长、 和所述 RLC上行 数据最大重传次数; 其中, 所述配置参数是由所述第一网络设备从所述第二网 络设备获取并发送给所述用户设备; 或者所述配置参数是由所述第二网络设备 发送给所述用户设备。
结合第四方面、第四方面的第一种可能的实现方式或者第四方面的第二种 可能的实现方式, 在上述第四方面的第三种可能的实现方式中, 所述第一消息 携带链路失败相关标识, 且所述链路失败相关标识包括以下标识中的一个或多 个: 发生失败的无线链路对应的小区的标识、 发生失败的无线链路对应的小区 所属辅小区组 SCG的标识、 发生失败的无线链路对应的小区所属时间提前组 TAG的标识和发生失败的无线链路对应的 载的标识。
结合第四方面、 第四方面的第一种可能的实现方式、 第四方面的第二种可 能的实现方式或者第四方面的第三种可能的实现方式, 在上述第四方面的第四 种可能的实现方式中, 所述第一消息携带链路失败原因。
结合第四方面的第四种可能的实现方式, 在上述第四方面的第五种可能的 实现方式中, 所述链路失败原因包括: 随机接入问题、 随机接入导频码的重传 次数达到或超过随机接入导频码最大重传次数、 RLC上行数据重传次数达到或 超过 RLC上行数据最大重传次数、 定时器超时、 或重配置失败。
结合第四方面、 第四方面的第一种可能的实现方式、 第四方面的第二种可 能的实现方式、 第四方面的第三种可能的实现方式、 第四方面的第四种可能的 实现或者第四方面的第五种可能的实现方式, 在上述第四方面的第六种可能的 实现方式中, 所述接收单元还用于接收所述第一网络设备发送的指示消息, 所 述指示消息用于指示所述用户设备释放小区、辅小区组 SCG、时间提前组 TAG 或者承载; 且所述设备还包括:
释放单元, 用于根据所述指示消息, 释放小区、 SCG、 TAG或承载。
结合第四方面的第六种可能的实现方式, 在上述第四方面的第七种可能的 实现方式中, 所述释放单元具体用于:
当所述指示消息不携带释放标识时, 释放所述第二网络设备对应的 SCG; 当所述指示消息携带释放标识时,根据所述释放标识释放小区、 SCG、 TAG 或者承载。
结合第四方面的第七种可能的实现方式, 在上述第四方面的第八种可能的 实现方式中, 当所述指示消息携带释放标识时, 所述释放单元具体用于:
当所述释放标识为小区的标识且所述小区为 SCG 中的辅小区, 释放所述 小区;
当所述释放标识为小区的标识且所述小区为 SCG 中的主小区、 或所述释 放标识为 SCG的标识、或当所述释放标识为所述 SCG包含的所有小区的标识, 释放所述 SCG;
当所述释放标识为 TAG的标识, 释放所述 TAG;
当所述释放标识为 TAG中的小区的标识, 释放所述 TAG中所述第二网络 设备控制的小区; 或
当所述释放标识为 SCG所服务的承载的标识, 释放所述 SCG所服务的承 载。
第五方面, 提供了一种无线链路失败检测的设备, 位于第二网络设备侧, 所述设备包括:
检测单元, 用于检测用户设备与所述第二网络设备之间建立的无线链路是 否发生失败;
接口单元, 用于在检测单元检测到所述用户设备与所述第二网络设备之间 建立的无线链路发生失败时, 向第一网络设备传送第一消息, 所述第一消息用 于指示所述用户设备与所述第二网络设备之间建立的无线链路发生失败。
结合第五方面, 在上述第五方面的第一种可能的实现方式中, 所述检测单 元具体用于:
当检测到所述第二网络设备通过第一无线链路尝试接收所述用户设备发 送的随机接入请求的次数达到或超过尝试接收随机接入请求的最大次数时, 确 定所述用户设备与所述第二网络设备之间建立的无线链路发生失败, 其中所述 第一无线链路为所述用户设备与所述第二网络设备之间建立的任一无线链路; 或,
当检测到所述第二网络设备通过第一无线链路向所述用户设备发送物理 下行控制信道 PDCCH信息达到或超过 PDCCH最大重传次数时, 确定所述用 户设备与所述第二网络设备之间建立的无线链路发生失败, 其中所述第一无线 链路为所述用户设备与所述第二网络设备之间建立的任一无线链路; 或, 当检测到所述第二网络设备通过第一无线承载重传无线链路控制 RLC下 行数据的次数达到或超过 RLC下行数据最大重传次数时, 确定所述用户设备 与第二网络设备之间建立的无线链路发生失败, 其中所述第一无线承载为所述 第二网络设备为所述用户设备服务的任一无线承载, 且承载在所述用户设备与 所述第二网络设备之间建立的一个或多个无线链路上; 或,
当检测到所述第二网络设备通过第一无线链路接收到的所述用户设备发 送的上行数据的误块率大于或等于预设误块率时,确定所述用户设备与第二网 络设备之间建立的无线链路发生失败, 其中所述第一无线链路为所述用户设备 与所述第二网络设备之间建立的任一无线链路; 或,
当检测到所述第二网络设备通过第一无线链路接收到的所述用户设备发 送的上行数据的误码率大于或等于预设误码率时,确定所述用户设备与第二网 络设备之间建立的无线链路发生失败, 其中所述第一无线链路为所述用户设备 与所述第二网络设备之间建立的任一无线链路。
结合第五方面的第一种可能的实现方式, 在上述第五方面的第二种可能的 实现方式中, 所述接口单元还用于接收所述第一网络设备发送的配置参数, 所 述配置参数包括以下参数中的一个或多个:
所述尝试接收随机接入请求的最大次数、 所述 PDCCH最大重传次数、 所 述 RLC下行数据最大重传次数、 所述预设误块率、 和所述预设误码率。
结合第五方面、第五方面的第一种可能的实现方式或者第五方面的第二种 可能的实现方式, 在上述第五方面的第三种可能的实现方式中, 所述第一消息 携带所述用户设备的标识, 以及链路失败相关标识, 且所述链路失败相关标识 包括以下标识中的一个或多个:
发生失败的无线链路对应的小区的标识、发生失败的无线链路对应的小区 所属辅小区组 SCG的标识、 发生失败的无线链路对应的小区所属时间提前组 TAG的标识和发生失败的无线链路对应的 载的标识。
结合第五方面、 第五方面的第一种可能的实现方式、 第五方面的第二种可 能的实现方式或者第五方面的第三种可能的实现方式, 在上述第五方面的第四 种可能的实现方式中, 所述第一消息携带链路失败原因。
结合第五方面的第四种可能的实现方式, 在上述第五方面的第五种可能的 实现方式中, 所述链路失败原因包括: 随机接入问题、 接收随机接入请求的次 数达到或超过尝试接收随机接入请求的最大次数、 PDCCH 的重传次数达到或 超过 PDCCH最大重传次数、 RLC下行数据重传次数达到或超过 RLC下行数 据最大重传次数、 上行数据的误块率达到或超过预设误块率、 上行数据的误码 率达到或超过预设误码率、 上行接收问题、 或下行发送问题。
结合第五方面、 第五方面的第一种可能的实现方式、 第五方面的第二种可 能的实现方式、 第五方面的第三种可能的实现方式、 第五方面的第四种可能的 实现方式或者第五方面的第五种可能的实现方式,在上述第五方面的第六种可 能的实现方式中, 所述接口单元还用于接收所述第一网络设备发送的指示消 息, 所述指示消息用于指示所述第二网络设备释放为所述用户设备服务的资 源; 且所述设备还包括:
释放单元, 用于根据所述指示消息, 释放为所述用户设备服务的资源。 结合第五方面的第六种可能的实现方式, 在上述第五方面的第七种可能的 实现方式中, 所述释放单元具体用于:
当所述指示消息包括所述用户设备的标识时,释放为所述用户设备服务的 资源; 或,
当所述指示消息包括所述用户设备的标识和小区的标识时,释放为所述用 户设备服务的所述小区的资源; 或,
当所述指示消息包括所述用户设备的标识和 TAG的标识时, 释放为所述 用户设备服务的所述 TAG的资源; 或,
当所述指示消息包括所述用户设备的标识和所述 TAG 包含的小区的标识 时, 释放为所述用户设备服务的所述 TAG 包含的所述第二网络设备控制的小 区的资源; 或,
当所述指示消息包括所述用户设备的标识和承载的标识时,释放为所述用 户设备的所述承载服务的资源。 第六方面, 提供了一种无线链路失败的处理设备, 位于第一网络设备侧, 所述设备包括:
收发单元, 用于与用户设备通信;
接口单元, 用于与第二网络设备通信;
获取单元, 用于通过所述收发单元或接口单元从所述用户设备或所述第二 网络设备获取第一消息, 所述第一消息为所述用户设备与所述第二网络设备之 间建立的无线链路发生失败时, 由所述用户设备或所述第二网络设备上报给所 述第一网络设备的;
确定单元, 用于根据所述第一消息确定所述用户设备与所述第二网络设备 之间建立的无线链路发生失败。
结合第六方面, 在上述第六方面的第一种可能的实现方式中, 所述第一消 息携带链路失败相关标识, 且所述链路失败相关标识包括以下标识中的一个或 发生失败的无线链路对应的小区的标识、发生失败的无线链路对应的小区 所属辅小区组 SCG的标识、 发生失败的无线链路对应的小区所属时间提前组 TAG的标识和发生失败的无线链路对应的 载的标识。
结合第六方面的第一种可能的实现方式, 在上述第六方面的第二种可能的 实现方式中, 所述第一消息还携带所述用户设备的标识。
结合第六方面、第六方面的第一种可能的实现方式或者第六方面的第二种 可能的实现方式, 在上述第六方面的第三种可能的实现方式中, 所述第一消息 携带链路失败原因。
结合第六方面的第三种可能的实现方式, 在上述第六方面的第四种可能的 实现方式中, 所述链路失败原因包括: 随机接入问题、 随机接入导频码的重传 次数达到或超过 RLC上行数据最大重传次数、 RLC上行数据重传次数达到或 超过 RLC上行数据最大重传次数、 定时器超时、 重配置失败、 接收随机接入 请求的次数达到或超过尝试接收随机接入请求的最大次数、 PDCCH 的重传次 数达到或超过 PDCCH最大重传次数、 RLC下行数据重传次数达到或超过 RLC 下行数据最大重传次数、 上行数据的误块率达到或超过预设误块率、 上行数据 的误码率达到或超过预设误码率、 上行接收问题、 或下行发送问题。
结合第六方面、 第六方面的第一种可能的实现方式、 第六方面的第二种可 能的实现方式、第六方面的第三种可能的实现方式或者第六方面的第四种可能 的实现方式, 在上述第六方面的第五种可能的实现方式中, 所述确定单元在确 定所述用户设备与所述第二网络设备之间建立的无线链路发生失败之后,还用 于:
触发所述收发单元向所述用户设备发送第二消息, 所述第二消息用于指示 所述用户设备释放小区、 辅小区组 SCG、 时间提前组 TAG或者承载; 和 /或, 触发所述接口单元向所述第二网络设备发送第三消息, 所述第三消息用于 指示所述第二网络设备释放为所述用户设备服务的资源。
结合第六方面的第五种可能的实现方式, 在上述第六方面的第六种可能的 实现方式中, 所述确定单元具体还用于触发所述收发单元向所述用户设备发送 携带第一释放标识的第二消息, 其中:
在所述第一消息不携带链路失败相关标识时, 所述第一释放标识包括所述 发生失败的无线链路对应的小区所属 SCG的标识、 所述 SCG包含的小区的标 识、 所述 SCG包含的主小区的标识、 或者所述 SCG所服务的承载的标识; 或 在所述第一消息携带链路失败相关标识时, 所述第一释放标识是根据所述 链路失败相关标识确定的。
结合第六方面的第六种可能的实现方式, 在上述第六方面的第七种可能的 实现方式中, 在所述第一消息携带链路失败相关标识时,
当所述链路失败相关标识包括发生失败的无线链路对应的小区的标识, 所 述第一释放标识包括所述小区的标识; 或,
当所述链路失败相关标识包括发生失败的无线链路对应的小区所属 SCG 的标识, 所述第一释放标识包括所述 SCG的标识、 所述 SCG包含的小区的标 识、 所述 SCG包含的主小区的标识或者所述 SCG所服务的承载的标识; 或, 当所述链路失败相关标识包括发生失败的无线链路对应的小区所属 TAG 的标识, 所述第一释放标识包括所述 TAG的标识或者所述 TAG包含的小区的 标识 ^ 或,
当所述链路失败相关标识包括发生失败的无线链路对应的承载的标识, 所 述第一释放标识包括服务所述承载的 SCG的标识、 所述 SCG包含的小区的标 识、 所述 SCG包含的主小区的标识或者所述 SCG所服务的承载的标识。
结合第六方面的第五种可能的实现方式, 在上述第六方面的第八种可能的 实现方式中, 所述确定单元具体还用于触发所述接口单元向所述第二网络设备 发送携带第二释放标识的第三消息, 其中: 当所述第一消息不携带链路失败相关标识时, 所述第二释放标识包括所述 用户设备的标识; 或,
当所述第一消息携带链路失败相关标识时, 所述第二释放标识是根据所述 链路失败相关标识确定的。
结合第六方面的第八种可能的实现方式, 在上述第六方面的第九种可能的 实现方式中, 在所述第一消息携带链路失败相关标识时,
当所述链路失败相关标识包括发生失败的无线链路对应的小区的标识, 所 述第二释放标识包括所述用户设备的标识和所述小区的标识; 或,
当所述链路失败相关标识包括发生失败的无线链路对应的小区所属 SCG 的标识, 所述第二释放标识包括所述用户设备的标识; 或,
当所述链路失败相关标识包括发生失败的无线链路对应的小区所属 TAG 的标识, 所述第二释放标识包括所述用户设备的标识和所述 TAG的标识, 或 者包括所述用户设备的标识和所述 TAG包含的小区的标识; 或,
当所述链路失败相关标识包括发生失败的无线链路对应的承载的标识, 所 述第二释放标识包括所述用户设备的标识, 或者包括所述用户设备的标识和服 务所述承载的 SCG所服务的承载的标识。
结合第六方面或者第六方面的第一种可能的实现方式至第六方面的第九 种可能的实现方式中的任一种可能的实现方式, 在上述第六方面的第十种可能 的实现方式中, 所述收发单元具体还用于:
向所述用户设备发送第一配置参数, 所述第一配置参数包括以下参数中的 一个或多个: 随机接入导频码最大重传次数、 定时器时长、 和无线链路控制 RLC上行数据最大重传次数; 和 /或
向所述第二网络设备发送第二配置参数, 所述第二配置参数包括以下参数 中的一个或多个: 尝试接收随机接入请求的最大次数、 物理下行控制信道 PDCCH最大重传次数、 RLC下行数据最大重传次数、 预设误块率、 和预设误 码率。
在本发明实施例中, 当用户设备或者辅基站检测到 UE与辅基站之间发生 了无线链路失败时, 向主基站上报消息, 以通知主基站在 UE和辅基站之间发 生了无线链路失败。 使得主基站知晓该无线链路失败是发生在 UE和辅基站之 间, 因此可以不再进行 SRB 重建和安全的重新激活等不必要的操作。 此外, 主基站也可以对该无线链路失败作进一步处理, 例如, 释放辅基站和 /或 UE的 相关资源, 使得辅基站尽早为 UE重配资源, 有效的缩短了无线链路失败引起 的用户数据中断时间, 提高了用户的使用体验。 附图说明
为了更清楚地说明本发明实施例中的技术方案, 下面将对实施例描述中所 需要使用的附图作筒单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明 的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1是现有技术提供的一种网络部署结构示意图;
图 2是现有技术提供的一种无线链路的处理方法流程图;
图 3是本发明实施例一提供的一种无线链路失败的处理方法流程图; 图 4是本发明实施例一提供的另一种无线链路失败的处理方法流程图; 图 5是本发明实施例二提供的一种无线链路失败的处理方法流程图; 图 6是本发明实施例三提供的一种无线链路失败的处理方法流程图; 图 7是本发明实施例三提供的另一种无线链路失败的处理方法流程图; 图 8是本发明实施例四提供的一种无线链路失败的处理方法流程图; 图 9是本发明实施例五提供的一种无线链路失败的处理设备结构示意图; 图 10是本发明实施例五提供的另一种无线链路失败处理的设备结构示意 图;
图 11是本发明实施例六提供的一种无线链路失败的处理设备结构示意图; 图 12是本发明实施例六提供的另一种无线链路失败的处理设备结构示意 图;
图 13是本发明实施例七提供的一种无线链路失败的处理设备结构示意图; 图 14是本发明实施例八提供的一种用户设备的结构示意图;
图 15是本发明实施例九提供的一种第一网络设备的结构示意图; 图 16是本发明实施例十提供的一种第二网络设备的结构示意图。 具体实施方式
为使本发明的目的、 技术方案和优点更加清楚, 下面将结合附图对本发明 实施方式作进一步地详细描述。
考虑到现有技术存在的问题, 本发明实施例在 UE和辅基站之间发生无线 链路失败时, 可以向主基站上报该无线链路失败, 使得主基站知晓该无线链路 失败是发生在 UE和辅基站之间的,因此可以不再进行 SRB重建和安全的重新 激活等不必要的操作。 有效的缩短了无线链路失败引起的用户数据中断时间, 提高了用户的使用体验。此外,主基站也可以对该无线链路失败作进一步处理, 例如, 释放辅基站和 /或 UE的相关资源, 使得辅基站尽早为 UE重配资源, 进 一步缩短了无线链路失败引起的用户数据中断时间, 提高了用户的使用体验。
下面结合多个实施例, 对本发明的方案和效果进行更加详细的描述。 以下 实施例中的网络设备可以为能够与用户设备通信的网络节点, 包括基站台 (Base Station, BS)、 基站 B ( Node B )、 eNB ( evolved Node B , 演进式基站;)、 WiFi接入点等。
用户设备可以为移动通信终端, 包括蜂窝电话 (cellular phone)、 个人数字 助理 (personal digital assistant , PDA) , 无线调制解调器 (modern) , 手持设备 (handheld) , 膝上型电脑 (laptop computer), 无绳电话 (cordless phone)等。
实施例一
在本实施例中, 当 UE检测到自身与辅基站之间发生了无线链路失败时, 向主基站上报消息, 以通知主基站在 UE和辅基站之间发生了无线链路失败。 请参考图 3 ,其为本发明实施例提供的一种无线链路失败的处理方法的流程图, 如图 3所示, 该方法包括:
S301 : UE检测该 UE与第二网络设备之间是否发生无线链路失败; 即, UE检测该 UE与第二网络设备之间建立的无线链路是否发生失败,当 UE与第 二网络设备的多个小区之间都建立有无线链路时, 可以设定任一个无线链路发 生失败的情况下, 该 UE与第二网络设备之间发生了无线链路失败(即该 UE 与第二网络设备之间建立的无线链路发生了失败); 也可以设定某个或某些无 线链路发生失败的情况下,该 UE与第二网络设备之间发生了无线链路失败(即 该 UE与第二网络设备之间建立的无线链路发生了失败)。
S302: 当检测到该 UE与第二网络设备之间发生无线链路失败时, 向第一 网络设备发送第一消息, 所述第一消息用于指示所述用户设备与所述第二网络 设备之间发生无线链路失败。 即当检测到该 UE与第二网络设备之间建立的无 线链路发生失败时, 向第一网络设备发送第一消息, 所述第一消息用于指示所 述用户设备与所述第二网络设备之间建立的无线链路发生失败, 或者说所述第 一消息用于指示发生在用户设备与第二网络设备之间的无线链路失败。 以上第一网络设备是指主基站, 第二网络设备是指辅基站。 当 UE检测到 自身和辅基站之间发生无线链路失败时, 可以向主基站上报该无线链路失败, 使得主基站知晓该无线链路失败是发生在 UE和辅基站之间, 因此可以不再进 行 SRB 重建和安全的重新激活等不必要的操作。 此外, 主基站也可以对该无 线链路失败作进一步处理, 例如, 释放辅基站和 /或 UE的相关资源, 使得辅基 站尽早为 UE重配资源,有效的缩短了无线链路失败引起的用户数据中断时间, 提高了用户的使用体验。
以上步骤 S301 , 即 UE检测该 UE与第二网络设备之间是否发生无线链路 失败的步骤, 可以通过以下方式实现:
第一、 当检测到所述用户设备通过第一无线链路重传随机接入请求的次数 达到或超过随机接入导频码最大重传次数时, 确定所述用户设备与所述第二网 络设备之间建立的无线链路发生失败, 其中, 所述第一无线链路为所述用户设 备与所述第二网络设备之间建立的任一无线链路。
由于第二网络设备可以控制多个小区, 所以 UE可以与该第二网络设备控 制的多个小区分别建立无线链路, 即 UE可以与该第二网络设备建立多条无线 链路。 当该 UE通过与该第二网络设备控制的某个小区之间建立的无线链路向 第二网络设备发送随机接入请求时, 如果该随机接入请求发送失败, 则 UE重 新通过该无线链路向第二网络设备发送该随机接入请求, 并统计 UE通过该无 线链路向该第二网络设备重复发送该随机接入请求的次数(以下筒称为第一次 数)。 当该第一次数达到或超过随机接入导频码最大重传次数时, UE确定该无 线链路发生失败, 否则, UE确定该无线链路没有发生失败。
第二、 当检测到第一小区对应的定时器达到或超过定时器时长时, 确定所 述用户设备与所述第二网络设备之间建立的无线链路发生失败, 其中, 所第一 小区为所述第二网络设备的任一小区。
由于第二网络设备可以控制多个小区, 所以 UE可以与该第二网络设备控 制的多个小区分别建立无线链路, 即 UE可以与该第二网络设备建立多条无线 链路。 UE可以针对第二网络设备下的所有小区或部分小区设置定时器, 且可 以为每个小区设置一个定时器, 且不同小区的定时器时长可以相同也可以不 同。 当 UE检测第二网络设备控制的某个小区的下行信号质量小于或等于预设 的质量阈值时, 启动对应的定时器。 如果在该定时器的时长内没有检测到该小 区的下行信号质量大于预设的质量阈值, 即检测到该小区的下行信号质量一直 小于或等于预设的质量阈值, 则确定该 UE与该小区之间建立的无线链路发生 失败。如果在该定时器的定时时长内检测到该小区的下行信号质量大于该预设 的质量阈值, 则停止该定时器, 并确定 UE与该小区之间建立的无线链路没有 发生失败。
第三、 当检测到所述用户设备通过第一无线承载重传无线链路控制( Radio Link Control, RLC )上行数据的次数达到或超过 RLC上行数据最大重传次数 时, 确定所述用户设备与第二网络设备之间建立的无线链路发生失败, 其中, 所述第一无线承载为所述第二网络设备为所述用户设备服务的任一无线承载, 且承载在所述用户设备与所述第二网络设备之间建立的一个或多个无线链路 上。
由于第二网络设备可以控制多个小区, 所以 UE可以与该第二网络设备控 制的多个小区分别建立无线链路, 即 UE可以与该第二网络设备建立多条无线 链路。 当 UE通过与第二网络设备之间建立的无线承载(Radio Bearer, RB ) 向该第二网络设备发送 RLC上行数据时, 如果该 RLC上行数据发送失败, 则 该用户设备重新通过该 RB向该第二网络设备发送 RLC上行数据, 并统计 UE 通过该 RB向该第二网络设备重复发送 RLC上行数据的次数(以下筒称为第二 次数)。 当第二次数达到或超过 RLC上行数据最大重传次数时, 确定 UE与第 二网络设备之间承载该 RB的无线链路发生失败, 否则, 确定 UE与第二网络 设备之间承载该 RB的无线链路没有发生失败。
需要说明的是, 以上所述的随机接入导频码最大重传次数、 定时器时长、 和 RLC上行数据最大重传次数可以由第一网络设备从第二网络设备处获取, 并发送给 UE; 也可以由第二网络设备直接发送给 UE。 这将在后面的实施例二 中详细描述, 在此不再赘述。
需要说明的是, 以上第一消息可以是一个新增的消息, 或者说专门设定的 消息, 当主基站接收到该消息时, 根据该消息的名称便可以知道 UE和辅基站 之间发生了无线链路失败。此外,该第一消息也可以是现有消息中新增的信元, 或者说专门设定的信元, 当主基站接收到第一消息时, 根据第一消息中是否含 有该新增的信元便可以知道 UE和辅基站之间发生了无线链路失败。
可选的, 第一消息可以携带链路失败相关标识, 且该链路失败相关标识可 以包括以下标识中的一个或多个:
发生失败的无线链路对应的小区的标识、发生失败的无线链路对应的小区 所属辅小区组 SCG的标识、 发生失败的无线链路对应的小区所属时间提前组 TAG的标识和发生失败的无线链路对应的 载的标识。
如此, 主基站便可以根据链路失败相关标识, 确定释放辅基站和 /或 UE的 相关资源, 使得辅基站尽早为 UE重配资源, 进一步缩短了无线链路失败引起 的用户数据中断时间, 提高了用户的使用体验。 这将在实施例二中详细描述, 在此不再赘述。
当然, 第一消息也可以不携带以上链路失败相关标识, 这种情况下, 主基 站可以在无线链路失败发生在辅基站和 UE之间时, 根据该第一消息来避免 SRB重建和安全的重新激活等不必要的操作, 而不做进一步处理。 另外, 如果 UE仅有一个辅基站为其提供服务, 则也可以根据该第一消息释放辅基站和 /或 UE的相关资源。
可选的, 第一消息可以携带链路失败原因。 当然, 可以仅携带链路失败相 关标识或链路失败原因, 也可以同时携带链路失败相关标识和链路失败原因。 当携带链路失败原因时, 主基站可以更加准确的定位失败原因, 从而能够以最 小的代价从失败中恢复。
其中, 以上链路失败原因可以包括: 随机接入问题、 随机接入导频码的重 传次数达到随机接入导频码最大重传次数、 RLC上行数据重传次数达到 RLC 上行数据最大重传次数、 定时器超时、 或重配置失败。
进一步地, 主基站可以根据第一消息确定 UE与辅基站之间建立的无线链 路发生失败之后, 通知辅基站和 /或 UE释放相关的资源, 使得辅基站尽早为 UE重配资源, 以缩短无线链路失败引起的用户数据中断时间, 提高了用户的 使用体验。
例如, 如图 4所示, 在以上步骤 S302之后, 主基站根据第一消息向 UE 发送第二消息, 该第二消息用于指示所述用户设备释放小区、 SCG、 时间提前 组(Timing Advance Group, TAG )或者承载。 此时, 以上无线链路失败的处 理方法还可以包括:
S303: 接收第一网络设备发送的第二消息, 该第二消息用于指示 UE释放 小区、 SCG、 TAG或者承载;
S304: 根据第二消息, 释放小区、 SCG、 TAG或承载。
具体的, 在以上步骤 S304中, 当第二消息不携带释放标识时, 可以认为 UE与第二网络设备之间建立的所有无线链路都无法正常使用, 则 UE可以释 放第二网络设备对应的 SCG。其中, UE释放第二网络设备对应的 SCG的操作 可以包括如下第一至第三三种情况:
第一、释放该 SCG所服务的 RB: 若一个 RB只被该 SCG服务, 则释放该 RB , 即释放与该 RB相关联的分组数据汇聚协议 ( Packet Data Convergence Protocol, PDCP ) 实体, RLC实体以及逻辑信道; 若一个 RB同时被 MCG和 SCG服务, 则释放该 RB被该 SCG所服务的部分, 即释放与该 RB相关联的 RLC实体和逻辑信道中该 SCG对应的 RLC实体和逻辑信道;
需要说明的是, 当一个 RB只被一个 SCG服务时, 与该 RB相关联的有一 个 PDCP实体、 一个 RLC实体和一个逻辑信道, 该 PDCP实体、 该 RLC实体 和该逻辑信道都与该 SCG相对应。 当一个 RB同时被 MCG和 SCG服务时, 与该 RB相关联的有一个 PDCP实体, 两个 RLC实体和两个逻辑信道,其中一 个 RLC实体和一个逻辑信道与 SCG相对应, 剩余的一个 RLC实体和剩余的 一个逻辑信道和 MCG相对应。
第二、释放与该 SCG对应的媒质接入控制( Medium Access Control, MAC ) 实体;
需要说明的是, 用户设备具有一个与 MCG相对应的 MAC实体, 此外还 具有一个或者多个 MAC实体, 其分别与一个 SCG相对应。
第三、 释放该 SCG所包含的小区。
当 UE释放第二网络设备对应的 SCG之后,该 UE还可以再重新建立与该 第二网络设备对应的 SCG 包含的小区之间建立的无线链路。 因此, 相对于现 有技术, 可以尽早的开始无线链路的建立, 以进一步缩短无线链路失败引起的 用户数据中断时间, 提高了用户的使用体验。
进一步的, 在以上步骤 S304中, 当第二消息携带释放标识时, 根据释放 标识释放小区、 SCG、 TAG或者承载。
例如, 当释放标识为小区的标识且该小区为 SCG 中的辅小区, 释放该小 区;当释放标识为小区的标识且该小区为 SCG中的主小区、或释放标识为 SCG 的标识、 或当释放标识为 SCG包含的所有小区的标识, 释放该 SCG; 当释放 标识为 TAG的标识, 释放该 TAG; 当释放标识为 TAG中的小区的标识, 释放 该 TAG包含的小区; 或当释放标识为 SCG所服务的承载的标识, 释放该 SCG 所服务的承载。
一个 TAG 包含的小区可以为一个网络设备控制的小区, 也可以为多个网 络设备控制的小区。 相应地, 释放该 TAG 包含的小区的具体操作可以为: 当 该 TAG包含小区为一个网络设备控制的小区时, 则直接释放该 TAG包含的所 有小区。 当该 TAG包含的小区为多个网络设备控制的小区, 则从该 TAG包含 的小区中选择该第二网络设备控制的小区, 释放选择的小区。
释放该 SCG所服务的承载的具体操作可以为:
如果该 SCG所服务的承载的标识为 RB的标识, 则当该 RB只被该 SCG 服务时, 则释放该 RB, 即释放与该 RB相关联的 PDCP实体, RLC实体和逻 辑信道; 当该 RB同时被 MCG和该 SCG服务时, 则释放该承载被该 SCG所 服务的部分, 即释放与该承载相关联的 RLC实体和逻辑信道中该 SCG对应的 RLC实体和逻辑信道。
如果该 SCG所服务的 7 载的标识为 E-UTRAN无线接入 载( E-UTRAN Radio Access Bearer , E-RAB ) 的标识, 则用户设备根据该 E-RAB的标识, 从 已存储的 RB的标识与 E-RAB的标识的对应关系中获取对应的 RB的标识。当 该 RB只被该 SCG服务时, 则释放该 RB , 即释放与该 RB相关联的 PDCP实 体, RLC实体和逻辑信道; 当该 RB同时被 MCG和该 SCG服务时, 则释放该 承载被该 SCG所服务的部分, 即释放与该承载相关联的 RLC实体和逻辑信道 中该 SCG对应的 RLC实体和逻辑信道。
在本发明实施例中, 当用户设备检测到自身与辅基站之间发生了无线链路 失败时, 向主基站上报消息, 以通知主基站在 UE和辅基站之间发生了无线链 路失败。 使得主基站知晓该无线链路失败是发生在 UE和辅基站之间, 因此可 以不再进行 SRB 重建和安全的重新激活等不必要的操作。 此外, 主基站也可 以对该无线链路失败作进一步处理, 例如, 释放辅基站和 /或 UE的相关资源, 使得辅基站尽早为 UE重配资源, 有效的缩短了无线链路失败引起的用户数据 中断时间, 提高了用户的使用体验。
下面结合实施例二, 描述主基站在得知 UE和辅基站之间发生无线链路失 败后, 进一步进行处理的过程。 实施例二
请参考图 5, 其为本发明实施例提供的另一种无线链路失败的处理方法的 信令流图。 其中, 第一网络设备为主基站, 第二网络设备为辅基站, 如图 5所 示, 该方法包括: S501: 第二网络设备向第一网络设备发送配置参数, 所述配置参数包括以 下参数中的一个或多个: 随机接入导频码最大重传次数, RLC上行数据最大重 传次数和定时器时长;
其中, 该定时器可以为 T310定时器。
S502: 第一网络设备接收第二网络设备发送的配置参数, 并向 UE发送配 置参数;
由于第一网络设备可以为 UE生成无线资源控制(Radio Resource Control, RRC ) 消息, 则以上配置参数可以通过 RRC消息进行传输; 此处仅为举例, 本发明实施例对消息的传输格式不做任何限制, 也可以通过第一网络设备与第 二网络设备之间的其它消息进程传输。
其中, 第一网络设备向 UE发送的配置参数可以携带第二网络设备发送给 第一网络设备的配置参数中的所有参数或部分参数, 本发明实施例不做任何限 制
需要说明的是, 以上步骤 S501 可以省略, 也就是说, 第一网络设备可以 自己配置发送给 UE的配置参数, 而无需从第二网络设备处获取。 另外, 第一 网络设备也可以指示第二网络设备将以上配置参数直接发送给 UE, 而无需通 过第一网络设备来发送。 总之, 本发明实施例对于配置参数的来源, 不做任何 限制。。
S503: UE接收第一网络设备发送的配置参数, 根据所接收的配置参数, 检测所述用户设备与第二网络设备之间建立的无线链路是否发生失败; 其中, 配置参数可以携带随机接入导频码最大重传次数, RLC上行数据最大重传次数 和定时器时长等一个或多个参数, 则 UE可以根据其中携带的任意一个参数, 采用以下第一、 第二和第三种与该参数对应的情况判断该 UE与该第二网络设 备之间建立的无线链路是否发生失败。
由于第二网络设备可以控制多个小区, 所以 UE可以与该第二网络设备控 制的多个小区分别建立无线链路, 即 UE可以与该第二网络设备建立多条无线 链路。
第一、 当 UE接收的配置参数携带随机接入导频码最大重传次数时, 当该 UE通过与第二网络设备控制的某个小区之间建立的无线链路向该第二网络设 备发送随机接入请求时, 如果该随机接入请求发送失败, 则该 UE重新通过该 无线链路向该第二网络设备发送该随机接入请求, 并统计第一次数, 该第一次 数为该 UE通过该无线链路向该第二网络设备重复发送该随机接入请求的次 数。 如果第一次数大于或等于随机接入导频码最大重传次数, 则该 UE确定该 无线链路发生失败, 否则, 该 UE确定该无线链路没有发生失败。
第二、 当 UE接收的配置参数携带定时器的时长时, 当该 UE检测到该第 二网络设备控制的某个小区的下行信号质量小于或等于预设的质量阈值时, 该 UE启动该定时器。 如果在该定时器的定时时长内没有检测到该小区的下行信 号质量大于预设的质量阈值, 即检测到该小区的下行信号质量一直小于或等于 预设的质量阈值, 则确定该 UE与该小区之间建立的无线链路发生失败。 如果 在该定时器的定时时长内检测到该小区的下行信号质量大于该预设的质量阈 值, 则停止该定时器, 并确定该 UE与该小区之间建立的无线链路没有发生失 败。
第三、 当 UE接收的配置参数携带 RLC上行数据最大重传次数时, 当该 UE通过与第二网络设备之间建立的无线承载( Radio Bearer , RB )向该第二网 络设备发送 RLC上行数据时, 如果该 RLC上行数据发送失败, 则该 UE重新 通过该 RB向该第二网络设备发送 RLC上行数据,并统计第二次数,第二次数 为该 UE通过该 RB向该第二网络设备重复发送 RLC上行数据的次数。如果第 二次数大于或等于 RLC上行数据最大重传次数,则确定该 UE与该第二网络设 备之间承载该 RB的无线链路发生失败, 否则, 确定该 UE与该第二网络设备 之间承载该 RB的无线链路没有发生失败。
其中, 如果配置参数携带随机接入导频码最大重传次数, RLC上行数据最 大重传次数和定时器时长中的多个, 则可以根据配置参数中携带的任意一个参 数, 采用上述第一、 第二和第三中与该参数对应的情况判断该用户设备与该第 二网络设备之间建立的无线链路是否发生失败。
其中, UE与第二网络设备之间建立的无线链路发生失败的原因还包括: 随机接入问题和重配置失败。 随机接入问题可以包括随机接入导频码的重传次 数达到随机接入导频码最大重传次数。 重配置失败发生的情况可以为: 当第一 网络设备向 UE发送配置参数时,如果该 UE不能接受该配置参数时, 则该 UE 确定发生重配置失败, 进而确定其与第二网络设备之间建立的无线链路发生失 败。
S504: 当 UE检测到自身与该第二网络设备之间建立的无线链路发生失败 时, 则该 UE向第一网络设备发送第一消息, 第一消息用于指示 UE与第二网 络设备之间建立的无线链路发生失败;
具体地, 如果 UE检测到自身与第二网络设备之间建立的无线链路发生失 败, 则该 UE可以通过与第一基站之间建立的无线链路向第一网络设备发送第 一消息。 当然, 该 UE还可以通过与第二网络设备之间没有发生失败的无线链 路向第二网络设备发送第一消息, 第二网络设备接收该第一消息并将该第一消 息转发给第一网络设备。
S505: 第一网络设备接收第一消息, 根据第一消息确定 UE与第二网络设 备之间建立的无线链路发生失败;
其中, 第一消息的内容同以上实施例一的描述, 例如, 可以携带链路失败 相关标识和 /或链路失败原因。
其中, 该链路失败相关标识可以包括以下标识中的任意一个或多个: 发生 失败的无线链路对应的小区的小区标识、发生失败的无线链路对应的小区所属 SCG ( Secondary Cell Group, 辅小区组) 的标识、 发送失败的无线链路对应的 小区所属 TAG ( Timing Advance Group, 时间提前组 ) 的标识和发生失败的无 线链路对应的 7|载的标识。
其中, 在本发明实施例中, 发生失败的无线链路对应的承载的标识为发生 失败的无线链路对应的 RB的标识, 该发生失败的无线链路对应的 RB的标识 为发生失败的无线链路对应的小区所属 SCG所服务的 RB的标识。
其中, 链路失败原因可以为以下原因中的任意一个: 随机接入问题、 随机 接入导频码重传次数达到或超过随机接入导频码最大重传次数、 RLC上行数据 重传次数达到或超过 RLC上行数据最大重传次数、 定时器超时和重配置失败。
进一步地, 第一网络设备接收到该链路失败原因时, 可以根据该链路失败 原因采取相应的措施避免再次由于该链路失败原因导致无线链路发生失败。 例 如, 如果该链路失败原因为 RLC上行数据重传次数达到 RLC上行数据最大重 传次数, 且导致 RLC上行数据重传次数达到 RLC上行数据最大重传次数的原 因是第二重传次数设置的不合理时, 则第一网络设备可以对 RLC上行数据最 大重传次数进行调整, 以避免再次由于 RLC上行数据最大重传次数设置的不 合理而导致 UE和第二网络设备之间建立的无线链路发生失败。
例如, 当该链路失败原因为随机接入问题, 即随机接入导频码的重传次数 达到随机接入导频码最大重传次数。如果随机接入导频码的重传次数达到随机 接入导频码最大重传次数的原因是随机接入导频码最大重传次数设置的不合 理, 则第一网络设备可以对随机接入导频码最大重传次数进行调整, 以避免再 次由于随机接入导频码最大重传次数设置的不合理而导致 UE和第二网络设备 之间建立的无线链路发生失败。如果随机接入导频码的重传次数达到随机接入 导频码最大重传次数是由于 UE与该第二网络设备之间的距离较远, 则第一网 络设备还可以协助运营商在该 UE的附近新部署一个第二网络设备, 缩短 UE 与第二网络设备之间的距离, 进而避免再次由于 UE与第二网络设备之间的距 离较远而导致 UE与该第二网络设备之间建立的无线链路发生失败。
例如, 当该链路失败原因为定时器超时, 如果定时器超时是由于定时器的 时长设置的不合理, 则第一网络设备可以对该定时器的时长进行调整, 进而避 免再次由于该定时器的时长设置的不合理导致 UE与第二网络设备之间建立的 无线链路发生失败。如果定时器超时是由于第二网络设备的下行发射功率较低 而导致的, 则第一网络设备可以协助运营商增加该第二网络设备的下行发射功 率, 进而避免再次由于该第二网络设备的下行发射功率较低导致 UE与第二网 络设备之间建立的无线链路发生失败。
S506: 第一网络设备根据第一消息向 UE发送第二消息, 第二消息用于指 示 UE释放小区、 SCG、 TAG或者承载;
具体地, 本步骤可以通过如下 (1 ) - ( 3 ) 的步骤来实现, 包括:
( 1 )、 如果第一消息不携带链路失败相关标识, 则第一网络设备将发生失 败的无线链路对应的小区所属 SCG的标识、该 SCG包含的小区的标识、该 SCG 包含的主小区的标识或者该 SCG所服务的承载的标识确定为第一释放标识; 具体地, 如果第一消息不携带链路失败相关标识, 则第一网络设备确定 UE与第二网络设备之间建立的无线链路均发生失败, 第一网络设备获取发生 失败的无线链路对应的小区所属 SCG的标识、 该 SCG包含的小区的标识、 该 SCG包含的主小区的标识或者该 SCG所服务的承载的标识, 将发生失败的无 线链路对应的小区所属 SCG的标识、 该 SCG包含的小区的标识、 该 SCG包 含的主小区的标识或者该 SCG所服务的承载的标识确定为第一释放标识。
其中, 该 SCG所服务的承载的标识可以为 RB的标识, 也可以为 E-RAB 的标识。 优选地, 该 SCG所服务的承载的标识可以为 RB的标识。
其中, 获取该 SCG 包含的小区的标识的具体操作可以为: 第一网络设备 根据发生失败的无线链路对应的小区所属 SCG的标识, 从已存储的 SCG的标 识与小区的标识的对应关系中获取对应的小区的标识, 将获取的小区的标识确 定为该 SCG包含的小区的标识。
其中,每个 SCG内都包含一个主小区,且每个 SCG内可以不包含辅小区, 也可以包含一个或多个辅小区,当 UE与该 SCG内包含的主小区之间建立的无 线链路发生失败时,该 UE也无法通过其与该 SCG内包含的辅小区之间建立的 无线链路与该第二网络设备之间进行数据通信。
其中, 每个 SCG可以服务一个或多个 RB, —个 RB可以同时被 MCG和 一个或者多个 SCG服务, 也可以只被一个 SCG服务。
( 2 )、 如果第一消息携带链路失败相关标识, 则第一网络设备根据该链路 失败相关标识确定第一释放标识;
其中, 第一网络设备根据该链路失败相关标识确定第一释放标识的具体操 作可以为: 如果该链路失败相关标识为发生失败的无线链路对应的小区的标 识, 则将该小区的标识确定为第一释放标识; 如果该链路失败相关标识为发生 失败的无线链路对应的小区所属 SCG的标识, 则将该 SCG的标识、 该 SCG 包含的小区的标识、 该 SCG包含的主小区的标识或者该 SCG所服务的承载的 标识确定为第一释放标识; 如果该链路失败相关标识为发生失败的无线链路对 应的小区所属 TAG的标识, 则将该 TAG的标识或者该 TAG包含的小区的标 识确定为第一释放标识; 如果该链路失败相关标识为发生失败的无线链路对应 的承载的标识, 则将服务该承载的 SCG的标识、 该 SCG包含的小区的标识、 该 SCG包含的主小区的标识或者该 SCG所服务的承载的标识确定为第一释放 标识。
( 3 )、 第一网络设备向 UE发送第二消息, 第二消息携带第一释放标识。 可选地, 如果第一消息不携带链路失败相关标识, 则第一网络设备可以直 接向 UE发送第二消息, 第二消息中也不携带第一释放标识。
S507: 第一网络设备根据第一消息向第二网络设备发送第三消息, 第三消 息用于指示第二网络设备释放为该 UE服务的资源;
具体地, 如果第一消息不携带链路失败相关标识, 则将该 UE的标识确定 为第二释放标识; 如果第一消息携带链路失败相关标识, 则根据链路失败相关 标识确定第二释放标识; 向第二网络设备发送第三消息, 第三消息携带第二释 放标识。
其中, 根据链路失败相关标识确定第二释放标识的具体操作可以为: 如果 链路失败相关标识为发生失败的无线链路对应的小区的标识, 则将该 UE的标 识和该小区的标识确定为第二释放标识; 如果链路失败相关标识为发生失败的 链路对应的小区所属 SCG的标识,则将该 UE的标识确定为第二释放标识;如 果链路失败相关标识为发生失败的无线链路对应的小区所属 TAG的标识, 则 将该 UE的标识和该 TAG的标识确定为第二释放标识,或者将该 UE的标识和 该 TAG 包含的小区的标识确定为第二释放标识; 如果链路失败相关标识为发 生失败的无线链路对应的承载的标识,则将该 UE的标识确定为第二释放标识, 或者将该 UE的标识和服务该承载的 SCG所服务的承载的标识确定为第二释放 标识。
其中, 由于发生失败的无线链路对应的承载的标识为 RB的标识, 则服务 该 RB的 SCG所服务的 7 载的标识可以为该 RB的标识, 也可以该 RB对应的 E-RAB ( E-UTRAN Radio Access Bearer, E-UTRAN无线接入 载 ) 的标识。 该 E-RAB的标识为该 RB所对应的 E-RAB的标识, 第一网络设备可以根据该 RB的标识, 从已存储的 RB的标识与 E-RAB的标识的对应关系中获取对应的 E-RAB的标识,将获取的 E-RAB的标识确定为该 RB所对应的 E-RAB的标识。
S508: UE接收第一网络设备发送的第二消息, 该第二消息用于指示 UE 释放小区、 辅小区组 SCG、 时间提前组 TAG或者承载; 根据该第二消息, 释 放小区、 SCG、 TAG或承载。
具体而言, 如果第二消息不携带第一释放标识, 则 UE释放第二网络设备 对应的 SCG。
其中, 如果第二消息中不携带第一释放标识, 则确定 UE与第二网络设备 之间建立的所有无线链路都无法正常使用,UE释放第二网络设备对应的 SCG。
关于 UE释放第二网络设备对应的 SCG的具体操作同以上实施例一的描 述, 在此不再赘述。 如果第二消息携带第一释放标识, 则 UE根据第一释放标 识释放小区、 SCG、 TAG或者承载;
其中, 根据第一释放标识释放小区、 SCG、 TAG或者承载的具体操作可以 为: 如果第一释放标识为小区的标识且该小区为 SCG 包含的辅小区, 则释放 该小区; 如果第一释放标识为小区的标识且该小区为 SCG 包含的主小区、 第 一释放标识为 SCG的标识或者第一释放标识为 SCG包含的所有小区的标识, 则释放该 SCG; 如果第一释放标识为 TAG的标识, 则释放该 TAG; 如果第一 释放标识为 TAG包含的小区的标识, 则释放该 TAG包含的小区; 如果第一释 放标识为 SCG所服务的承载的标识, 则释放该 SCG所服务的承载。 其中, 一个 TAG 包含的小区可以为一个网络设备控制的小区, 也可以为 多个网络设备控制的小区。 相应地, 释放该 TAG 包含的小区的具体操作可以 为: 当该 TAG包含小区为一个网络设备控制的小区时, 则直接释放该 TAG包 含的所有小区。当该 TAG包含的小区为多个网络设备控制的小区,则从该 TAG 包含的小区中选择该第二网络设备控制的小区, 释放选择的小区。
其中, 释放该 SCG所服务的承载的具体操作可以为:
如果该 SCG所服务的承载的标识为 RB的标识, 则当该 RB只被该 SCG 服务时, 则释放该 RB, 即释放与该 RB相关联的 PDCP实体, RLC实体和逻 辑信道; 当该 RB同时被 MCG和该 SCG服务时, 则释放该承载被该 SCG所 服务的部分, 即释放与该承载相关联的 RLC实体和逻辑信道中该 SCG对应的 RLC实体和逻辑信道。
如果该 SCG所服务的承载的标识为 E-RAB 的标识, 则用户设备根据该 E-RAB的标识, 从已存储的 RB的标识与 E-RAB的标识的对应关系中获取对 应的 RB的标识。 当该 RB只被该 SCG服务时, 则释放该 RB, 即释放与该 RB 相关联的 PDCP实体, RLC实体和逻辑信道; 当该 RB同时被 MCG和该 SCG 服务时,则释放该承载被该 SCG所服务的部分,即释放与该承载相关联的 RLC 实体和逻辑信道中该 SCG对应的 RLC实体和逻辑信道。
S509: 第二网络设备接收第一网络设备发送的第三消息, 第三消息用于指 示所述第二网络设备释放为 UE服务的资源; 且根据该指示消息, 释放为 UE 服务的资源。
该第三消息可以携带第二释放标识, 根据第二释放标识释放为该 UE服务 的资源。
具体地, 第二网络设备接收该第三消息。 如果第二释放标识为该 UE的标 识, 则释放为该 UE服务的资源; 如果第二释放标识为该 UE的标识和小区的 标识, 则释放为该 UE服务的该小区的资源; 如果第二释放标识为该 UE的标 识和 TAG的标识, 则释放为该 UE服务的该 TAG的资源; 如果第二释放标识 为该 UE的标识和 TAG包含的小区的标识, 则释放为该 UE服务的 TAG包含 的小区的资源;如果第二释放标识为该 UE的标识和服务该承载的 SCG所服务 的承载的标识, 则释放为该 UE的该承载服务的资源。
其中, 一个 TAG 包含的小区可以为一个网络设备控制的小区, 也可以为 多个网络设备控制的小区。 相应地, 释放该 TAG 包含的小区资源的具体操作 可以为:当该 TAG包含小区为一个网络设备控制的小区时,则直接释放该 TAG 包含的所有小区的资源。 当该 TAG 包含的小区为多个网络设备控制的小区, 则从该 TAG 包含的小区中选择该第二网络设备控制的小区, 释放选择的小区 的资源。
其中, 释放为该 UE的该承载服务的资源的具体操作可以为: 如果服务该 承载的 SCG所服务的承载的标识为 RB的标识, 则根据该 RB的标识, 从已存 储的 RB的标识与 E-RAB的标识的对应关系中获取对应的 E-RAB的标识, 释 放为该 UE的该 E-RAB服务的资源。 如果服务该承载的 SCG所服务的承载的 标识为 E-RAB的标识, 则直接释放为该 UE的该 E-RAB服务的资源。
其中, 在本发明实施例中, 第一网络设备可以只指示 UE或第二网络设备 进行资源释放,也可以同时指示 UE和第二网络设备进行资源释放。也就是说, 第一网络设备可以只发送第二消息或第三消息, 也可以同时(或不同时)发送 第二消息和第三消息, 以指示 UE和 /或第二网络设备释放相关的资源与配置, 对此, 本发明实施例不做任何限制。
在本发明实施例中, 当用户设备检测到自身与辅基站之间发生了无线链路 失败时, 向主基站上报消息, 以通知主基站在 UE和辅基站之间发生了无线链 路失败。 使得主基站知晓该无线链路失败是发生在 UE和辅基站之间, 因此可 以不再进行 SRB 重建和安全的重新激活等不必要的操作。 此外, 主基站也可 以对该无线链路失败作进一步处理, 例如, 释放辅基站和 /或 UE的相关资源, 使得辅基站尽早为 UE重配资源, 有效的缩短了无线链路失败引起的用户数据 中断时间, 提高了用户的使用体验。 实施例三
在本实施例中, 当辅基站检测到自身与 UE之间发生了无线链路失败时, 向主基站上报消息, 以通知主基站在 UE和辅基站之间发生了无线链路失败。 请参考图 6,其为本发明实施例提供的一种无线链路失败的处理方法的流程图, 如图 6所示, 该方法包括:
S601: 第二网络设备检测 UE与第二网络设备之间是否发生无线链路失 败; 即, 第二网络设备检测 UE与该第二网络设备之间建立的无线链路是否发 生失败; 当 UE与第二网络设备的多个小区之间都建立有无线链路时, 可以设 定任一个无线链路发生失败的情况下, 该 UE与第二网络设备之间发生了无线 链路失败(即该 UE与第二网络设备之间建立的无线链路发生了失败); 也可 以设定某个或某些无线链路发生失败的情况下, 该 UE与第二网络设备之间发 生了无线链路失败(即该 UE 与第二网络设备之间建立的无线链路发生了失 败)。
S602: 当检测到该 UE与第二网络设备之间发生无线链路失败时, 向第一 网络设备传送第一消息, 所述第一消息用于指示所述用户设备与所述第二网络 设备之间发生无线链路失败。 即, 当检测到 UE与该第二网络设备之间建立的 无线链路发生失败时, 向第一网络设备传送第一消息, 所述第一消息用于指示 UE与第二网络设备之间建立的无线链路发生失败, 或者说所述第一消息用于 指示发生在用户设备与第二网络设备之间的无线链路失败。
以上第一网络设备是指主基站, 第二网络设备是指辅基站。 当辅基站检测 到自身和 UE之间发生无线链路失败时, 可以向主基站上报该无线链路失败, 使得主基站知晓该无线链路失败是发生在 UE和辅基站之间, 因此可以不再进 行 SRB 重建和安全的重新激活等不必要的操作。 此外, 主基站也可以对该无 线链路失败作进一步处理, 例如, 释放辅基站和 /或 UE的相关资源, 使得辅基 站尽早为 UE重配资源,有效的缩短了无线链路失败引起的用户数据中断时间, 提高了用户的使用体验。
以上步骤 S601 ,即第二网络设备检测 UE与该第二网络设备之间建立的无 线链路是否发生失败的步骤, 可以通过以下方式实现:
第一、 当检测到所述第二网络设备通过第一无线链路尝试接收所述用户设 备发送的随机接入请求的次数达到或超过尝试接收随机接入请求的最大次数 时, 确定所述用户设备与所述第二网络设备之间建立的无线链路发生失败, 其 中所述第一无线链路为所述用户设备与所述第二网络设备之间建立的任一无 线链路。
当该第二网络设备在当前周期尝试接收该 UE通过与该第二网络设备控制 的某个小区之间建立的无线链路向该第二网络设备发送的随机接入请求时, 如 果第二网络设备没有接收到该随机接入请求, 则该第二网络设备在下一周期重 新尝试接收该 UE通过该无线链路向该第二网络设备发送的随机接入请求, 并 统计第三次数, 该第三次数为该第二网络设备尝试接收该 UE通过该无线链路 向该第二网络设备发送的随机接入请求的次数。如果第三次数大于或等于尝试 接收随机接入请求的最大次数, 则第二网络设备确定该无线链路发生失败, 否 则, 该第二网络设备确定该无线链路没有发生失败。
第二、 当检测到所述第二网络设备通过第一无线链路向所述用户设备发送 物理下行控制信道 PDCCH信息达到或超过 PDCCH最大重传次数时, 确定所 述用户设备与所述第二网络设备之间建立的无线链路发生失败, 其中所述第一 无线链路为所述用户设备与所述第二网络设备之间建立的任一无线链路;
当第二网络设备通过与 UE之间建立的某个无线链路向该 UE发送 PDCCH 信息时, 如果该 PDCCH信息发送失败, 则第二网络设备重新通过该无线链路 向该 UE发送 PDCCH信息, 并统计第四次数, 第四次数为该第二网络设备通 过该无线链路向该 UE重复发送 PDCCH信息的次数, 如果第四次数大于或等 于 PDCCH最大重传次数, 则确定该 UE与该第二网络设备之间的该无线链路 发生失败, 否则, 确定该 UE与该第二网络设备之间的该无线链路没有发生失 败。
第三、 当检测到所述第二网络设备通过第一无线承载重传无线链路控制 RLC下行数据的次数达到或超过 RLC下行数据最大重传次数时, 确定所述用 户设备与第二网络设备之间建立的无线链路发生失败, 其中所述第一无线承载 为所述第二网络设备为所述用户设备服务的任一无线承载,且承载在所述用户 设备与所述第二网络设备之间建立的一个或多个无线链路上。
当第二网络设备通过与 UE之间建立的无线链路承载的某个 RB向该 UE 发送 RLC下行数据时, 如果该 RLC下行数据发送失败, 则该第二网络设备重 新通过该 RB向该 UE发送 RLC下行数据, 并统计第五次数, 第五次数为该第 二网络设备通过该 RB向该 UE重复发送 RLC下行数据的次数,如果第五次数 大于或等于 RLC下行数据最大重传次数,则确定该 UE与该第二网络设备之间 承载该 RB的无线链路发生失败, 否则, 确定该 UE与该第二网络设备之间承 载该 RB的无线链路没有发生失败。
第四、 当检测到所述第二网络设备通过第一无线链路接收到的所述用户设 备发送的上行数据的误块率大于或等于预设误块率时, 确定所述用户设备与第 二网络设备之间建立的无线链路发生失败, 其中所述第一无线链路为所述用户 设备与所述第二网络设备之间建立的任一无线链路。
如果该第二网络设备通过自身控制的某个小区与该 UE之间建立的无线链 路接收 UE向该第二网络设备发送的上行数据时, 该第二网络设备计算接收的 上行数据的误块率, 将计算的误块率与预设误块率进行比较, 如果计算的误块 率大于或等于预设误块率, 则确定该 UE与该小区之间建立的无线链路发生失 败, 否则, 确定该 UE与该小区之间建立的无线链路没有发生失败。 或者, 如 果该第二网络设备通过自身控制的小区与该 UE之间建立的无线链路承载的某 个 RB接收 UE向该第二网络设备发送的上行数据时, 该第二网络设备计算接 收的上行数据的误块率, 将计算的误块率与预设误块率进行比较, 如果计算的 误块率大于或等于预设误块率,则确定承载该 RB的无线链路发生失败,否贝' J , 确定承载该 RB的无线链路没有发生失败。
第五、 当检测到所述第二网络设备通过第一无线链^妻收到的所述用户设 备发送的上行数据的误码率大于或等于预设误码率时, 确定所述用户设备与第 二网络设备之间建立的无线链路发生失败, 其中所述第一无线链路为所述用户 设备与所述第二网络设备之间建立的任一无线链路。
如果第二网络设备通过自身控制的某个小区与该 UE之间建立的无线链路 接收 UE向该第二网络设备发送的上行数据时, 该第二网络设备计算接收的上 行数据的误码率, 将计算的误码率与预设误码率进行比较, 如果计算的误码率 大于或等于预设误码率,则确定该 UE与该小区之间建立的无线链路发生失败, 否则, 确定该 UE与该小区之间建立的无线链路没有发生失败。 如果第二网络 设备通过自身控制的小区与该 UE之间建立的无线链路承载的某个 RB接收 UE 向该第二网络设备发送的上行数据时, 该第二网络设备计算接收的上行数据的 误码率, 将计算的误码率与预设误码率进行比较, 如果计算的误码率大于或等 于预设误码率, 则确定的承载该 RB的无线链路发生失败, 否则, 确定承载该 RB的无线链路没有发生失败。
需要说明的是, 以上尝试接收随机接入请求的最大次数、 PDCCH最大重 传次数、 RLC下行数据最大重传次数、 预设误块率、 和预设误码率可以预设在 第二网络设备中; 也可以由第一网络设备配置给第二网络设备。 这将在后面的 实施例四中详细描述, 在此不再赘述。
需要说明的是, 以上第一消息可以是一个新增的消息, 或者说专门设定的 消息, 当主基站接收到该消息时, 根据该消息的名称便可以知道 UE和辅基站 之间发生了无线链路失败。此外,该第一消息也可以是现有消息中新增的信元, 或者说专门设定的信元, 当主基站接收到第一消息时, 根据第一消息中是否含 有该新增的信元便可以知道 UE和辅基站之间发生了无线链路失败。
可选的, 第一消息可以携带 UE的标识, 以及链路失败相关标识, 且链路 失败相关标识可以包括以下标识中的一个或多个:
发生失败的无线链路对应的小区的标识、发生失败的无线链路对应的小区 所属辅小区组 SCG的标识、 发生失败的无线链路对应的小区所属时间提前组 TAG的标识和发生失败的无线链路对应的 载的标识。
如此, 主基站便可以根据链路失败相关标识, 确定释放辅基站和 /或 UE的 相关资源, 使得辅基站尽早为 UE重配资源, 进一步缩短了无线链路失败引起 的用户数据中断时间, 提高了用户的使用体验。 这将在实施例四中详细描述, 在此不再赘述。
当然, 第一消息也可以不携带以上链路失败相关标识, 这种情况下, 主基 站可以在无线链路失败发生在辅基站和 UE之间时, 根据该第一消息来避免 SRB重建和安全的重新激活等不必要的操作, 而不做进一步处理。 另外, 如果 UE仅有一个辅基站为其提供服务, 则也可以根据该第一消息释放辅基站和 /或 UE的相关资源。
可选的, 第一消息可以携带链路失败原因。 当然, 可以仅携带链路失败相 关标识或链路失败原因, 也可以同时携带链路失败相关标识和链路失败原因。 当携带链路失败原因时, 主基站可以更加准确的定位失败原因, 从而能够以最 小的代价从失败中恢复。
其中, 以上链路失败原因可以包括: 随机接入问题、 接收随机接入请求的 次数达到或超过尝试接收随机接入请求的最大次数、 PDCCH 的重传次数达到 或超过 PDCCH最大重传次数、 RLC下行数据重传次数达到或超过 RLC下行 数据最大重传次数、 上行数据的误块率达到或超过预设误块率、 上行数据的误 码率达到或超过预设误码率、 上行接收问题、 或下行发送问题。
进一步地, 主基站可以根据第一消息确定 UE与辅基站之间建立的无线链 路发生失败之后, 通知辅基站和 /或 UE释放相关的资源, 使得辅基站尽早为 UE重配资源, 以缩短无线链路失败引起的用户数据中断时间, 提高了用户的 使用体验。
例如, 如图 7所示, 在以上步骤 S602之后, 主基站根据第一消息向辅基 站发送第二消息, 该第二消息用于指示辅基站释放为 UE服务的资源。 此时, 以上无线链路失败的处理方法还可以包括:
S603: 第二网络设备接收所述第一网络设备发送的第三消息, 所述第三消 息用于指示所述第二网络设备释放为 UE服务的资源; S604: 根据第三消息, 释放为 UE服务的资源。
具体的, 在以上步骤 S604中, 当第三消息包括所述 UE的标识时, 释放 为所述 UE服务的资源; 当第三消息包括所述 UE的标识和小区的标识时, 释 放为所述 UE服务的所述小区的资源; 或, 当第三消息包括所述 UE的标识和 TAG的标识时, 释放为所述 UE服务的所述 TAG的资源; 或, 当第三消息包 括所述 UE的标识和所述 TAG中的小区的标识时,释放为所述用户设备服务的 所述 TAG 包含的小区的资源; 或, 当第三消息包括所述用户设备的标识和承 载的标识时, 释放为所述用户设备的所述承载服务的资源。
一个 TAG 包含的小区可以为一个网络设备控制的小区, 也可以为多个网 络设备控制的小区。 相应地, 释放该 TAG 包含的小区的资源的具体操作可以 为: 当该 TAG包含小区为一个网络设备控制的小区时, 则直接释放该 TAG包 含的所有小区的资源。 当该 TAG 包含的小区为多个网络设备控制的小区, 则 从该 TAG 包含的小区中选择该第二网络设备控制的小区, 释放选择的小区的 资源。
释放为该 UE的该承载服务的资源的具体操作可以为: 如果服务该承载的 SCG所服务的承载的标识为 RB的标识,则根据该 RB的标识,从已存储的 RB 的标识与 E-RAB 的标识的对应关系中获取对应的 E-RAB 的标识, 释放为该 UE的该 E-RAB服务的资源。 如果服务该承载的 SCG所服务的承载的标识为 E-RAB的标识, 则直接释放为该 UE的该 E-RAB服务的资源。
在本发明实施例中, 当辅基站检测到自身与 UE之间发生了无线链路失败 时, 向主基站上报消息, 以通知主基站在 UE和辅基站之间发生了无线链路失 败。 使得主基站知晓该无线链路失败是发生在 UE和辅基站之间, 因此可以不 再进行 SRB 重建和安全的重新激活等不必要的操作。 此外, 主基站也可以对 该无线链路失败作进一步处理, 例如, 释放辅基站和 /或 UE的相关资源, 使得 辅基站尽早为 UE重配资源, 有效的缩短了无线链路失败引起的用户数据中断 时间, 提高了用户的使用体验。
下面结合实施例四, 描述主基站在得知 UE和辅基站之间发生无线链路失 败后, 进一步进行处理的过程。 实施例四
请参考图 8, 其为本发明实施例提供的另一种无线链路失败的处理方法的 信令流图, 如图 8所示, 该方法包括:
S801: 第一网络设备向第二网络设备发送配置参数, 该配置参数携带以下 参数中的一个或多个: 尝试接收随机接入请求的最大次数、 PDCCH最大重传 次数、 RLC 下行数据最大重传次数, 上行数据的误块率(Block Error Rate, BLER )门限(或称之为预设误块率;),上行数据的误码率( Bit Error Rate, BER ) 门限(或称之为预设误码率);
S802: 第二网络设备接收配置参数, 根据所接收的配置参数, 检测自身与 UE之间建立的无线链路是否发生失败;
其中, 由于第二网络设备可以控制多个小区, 所以 UE可以与该第二网络 设备控制的多个小区分别建立无线链路, 即 UE可以与该第二网络设备建立多 条无线链路。
第一、 当第二网络设备接收到配置参数后, 如果配置参数携带尝试接收随 机接入请求的最大次数, 则当该第二网络设备在当前周期尝试接收该 UE通过 与该第二网络设备控制的某个小区之间建立的无线链路向该第二网络设备发 送的随机接入请求时, 如果第二网络设备没有接收到该随机接入请求, 则该第 二网络设备在下一周期重新尝试接收该 UE通过该无线链路向该第二网络设备 发送的随机接入请求, 并统计第三次数, 该第三次数为该第二网络设备尝试接 收该 UE通过该无线链路向该第二网络设备发送的随机接入请求的次数。 如果 第三次数大于或等于尝试接收随机接入请求的最大次数, 则第二网络设备确定 该无线链路发生失败, 否则, 该第二网络设备确定该无线链路没有发生失败。
第二、 如果配置参数携带 PDCCH最大重传次数, 则当该第二网络设备通 过与该 UE之间建立的某个无线链路向该 UE发送 PDCCH信息时, 如果该 PDCCH信息发送失败, 则第二网络设备重新通过该无线链路向该 UE发送 PDCCH信息, 并统计第四次数, 第四次数为该第二网络设备通过该无线链路 向该 UE重复发送 PDCCH信息的次数, 如果第四次数大于或等于 PDCCH最 大重传次数, 则确定该 UE与该第二网络设备之间的该无线链路发生失败, 否 则, 确定该 UE与该第二网络设备之间的该无线链路没有发生失败。
第三、 如果配置参数携带 RLC下行数据最大重传次数, 则当第二网络设 备通过与该 UE之间建立的无线链路承载的某个 RB向该 UE发送 RLC下行数 据时,如果该 RLC下行数据发送失败,则该第二网络设备重新通过该 RB向该 UE发送 RLC下行数据, 并统计第五次数, 第五次数为该第二网络设备通过该 RB向该 UE重复发送 RLC下行数据的次数, 如果第五次数大于或等于 RLC 下行数据最大重传次数, 则确定该 UE与该第二网络设备之间承载该 RB的无 线链路发生失败, 否则, 确定该 UE与该第二网络设备之间承载该 RB的无线 链路没有发生失败。
第四、 如果配置参数携带预设误块率, 并且如果该第二网络设备通过自身 控制的某个小区与该 UE之间建立的无线链路接收 UE向该第二网络设备发送 的上行数据时, 该第二网络设备计算接收的上行数据的误块率, 将计算的误块 率与预设误块率进行比较, 如果计算的误块率大于或等于预设误块率, 则确定 该 UE与该小区之间建立的无线链路发生失败, 否则, 确定该 UE与该小区之 间建立的无线链路没有发生失败。如果该第二网络设备通过自身控制的小区与 该 UE之间建立的无线链路承载的某个 RB接收 UE向该第二网络设备发送的 上行数据时, 该第二网络设备计算接收的上行数据的误块率, 将计算的误块率 与预设误块率进行比较, 如果计算的误块率大于或等于预设误块率, 则确定承 载该 RB的无线链路发生失败, 否则, 确定承载该 RB的无线链路没有发生失 败。
第五、 如果配置参数携带预设误码率, 并且如果第二网络设备通过自身控 制的某个小区与该 UE之间建立的无线链路接收 UE向该第二网络设备发送的 上行数据时, 该第二网络设备计算接收的上行数据的误码率, 将计算的误码率 与预设误码率进行比较, 如果计算的误码率大于或等于预设误码率, 则确定该 UE与该小区之间建立的无线链路发生失败, 否则, 确定该 UE与该小区之间 建立的无线链路没有发生失败。 如果第二网络设备通过自身控制的小区与该 UE之间建立的无线链路承载的某个 RB接收 UE向该第二网络设备发送的上行 数据时, 该第二网络设备计算接收的上行数据的误码率, 将计算的误码率与预 设误码率进行比较, 如果计算的误码率大于或等于预设误码率, 则确定的承载 该 RB的无线链路发生失败, 否则, 确定承载该 RB的无线链路没有发生失败。
其中, 如果配置参数携带尝试接收随机接入请求的最大次数、 PDCCH最 大重传次数、 RLC下行数据最大重传次数,预设误块率,预设误码率中的多个, 则可以根据其中任意一个参数, 采用上述第一至第五种与该参数对应的情况判 断该 UE与该第二网络设备之间建立的无线链路是否发生失败。
其中,该 UE与第二网络设备之间建立的无线链路发生失败的原因还包括: 上行接收问题和下行发送问题。上行接收问题包括接收随机接入请求的次数达 到或超过尝试接收随机接入请求的最大次数、上行数据的 BLER达到或超过预 设误块率和上行数据的 BER 达到或超过预设误码率。 下行发送问题包括 PDCCH的重传次数达到或超过 PDCCH最大重传次数和 RLC下行数据重传次 数达到或超过 RLC下行数据最大重传次数。
可选地, 第一网络设备也可以不向第二网络设备发送配置参数, 而是第二 网络设备自身配置尝试接收随机接入请求的最大次数、 PDCCH最大重传次数、 RLC下行数据最大重传次数,预设误块率和预设误码率中的一个或多个。 第二 网络设备根据自身配置的以上参数检测自身与 UE之间建立的无线链路。
S803:当第二网络设备检测到自身与 UE之间建立的无线链路发生失败时, 则第二网络设备向第一网络设备发送第一消息, 第一消息用于指示 UE与第二 网络设备之间建立的无线链路发生失败;
具体地, 如果第二网络设备检测到自身与 UE之间建立的无线链路发生失 败, 则第二网络设备可以通过与第一网络设备之间建立的有线链路向第一网络 设备发送第一消息。当然,也可以通过无线方式向第一网络设备发送第一消息, 本发明实施例不做任何限制。
S804: 第一网络设备接收第一消息, 根据第一消息确定 UE与第二网络设 备之间建立的无线链路发生失败;
其中, 第一消息的内容同以上实施例三的描述, 例如, 可以携带该 UE的 标识, 以及链路失败相关标识和 /或链路失败原因。
其中, 该链路失败相关标识可以包括以下标识中的任意一个或多个: 发生 失败的无线链路对应的小区的标识、发生失败的无线链路对应的小区所属 SCG 的标识、 发送失败的无线链路对应的小区所属 TAG的标识和发生失败的无线 链路对应的 7|载的标识。
其中, 在本发明实施例中, 发生失败的无线链路对应的承载的标识可以为 发生失败的无线链路对应的 E-RAB的标识。
其中, 链路失败原因可以为以下原因中的任意一个: 随机接入问题、 接收 随机接入请求的次数达到或超过尝试接收随机接入请求的最大次数、 PDCCH 的重传次数达到或超过 PDCCH最大重传次数、 RLC下行数据重传次数达到或 超过 RLC下行数据最大重传次数、上行数据的 BLER达到或超过预设误块率、 上行数据的 BER达到或超过预设误码率、 上行接收问题和下行发送问题。 进 一步地, 第一网络设备接收到该链路失败原因时, 可以根据该链路失败原因采 取相应的措施避免再次由于该链路失败原因导致无线链路发生失败。 例如, 当 该链路失败原因为接收随机接入请求的次数达到尝试接收随机接入请求的最 大次数,且导致接收随机接入请求的次数达到尝试接收随机接入请求的最大次 数的原因是尝试接收随机接入请求的最大次数设置的不合理时, 则第一网络设 备可以对尝试接收随机接入请求的最大次数进行调整, 以避免再次由于尝试接 收随机接入请求的最大次数设置的不合理而导致 UE和第二网络设备之间建立 的无线链路发生失败。如果导致接收随机接入请求的次数达到尝试接收随机接 入请求的最大次数的原因是 UE与该第二网络设备之间的距离较远, 则第一网 络设备还可以协助运营商在该 UE附近新部署一个第二网络设备, 缩短 UE与 第二网络设备之间的距离, 进而避免再次由于 UE与第二网络设备之间的距离 导致 UE与该第二网络设备之间建立的无线链路发生失败。
例如, 当该链路失败原因为 PDCCH的重传次数达到 PDCCH最大重传次 数, 且导致 PDCCH的重传次数达到 PDCCH最大重传次数的原因是 PDCCH 最大重传次数设置的不合理时, 第一网络设备可以对 PDCCH最大重传次数进 行调整, 以避免再次由于 PDCCH最大重传次数设置的不合理而导致 UE和第 二网络设备之间建立的无线链路发生失败。
例如, 当该链路失败原因为 RLC下行数据重传次数达到 RLC下行数据最 大重传次数, 且导致 RLC下行数据重传次数达到 RLC下行数据最大重传次数 的原因是 RLC下行数据最大重传次数设置的不合理时, 第一网络设备可以对 RLC下行数据最大重传次数进行调整, 以避免再次由于 RLC下行数据最大重 传次数设置的不合理而导致 UE 和第二网络设备之间建立的无线链路发生失 败。
例如, 当该链路失败原因为上行数据的 BLER超过预设误块率, 且导致上 行数据的 BLER超过预设误块率的原因是预设误块率设置的不合理时,第一网 络设备可以对预设误块率进行调整, 以避免再次由于预设误块率设置的不合理 而导致 UE和第二网络设备之间建立的无线链路发生失败。
例如, 当该链路失败原因为上行数据的 BER超过预设误码率, 且导致上 行数据的 BER超过预设误码率的原因是预设误码率设置的不合理时, 第一网 络设备可以对预设误码率进行调整, 以避免再次由于预设误码率设置的不合理 而导致 UE和第二网络设备之间建立的无线链路发生失败。
S805: 第一网络设备根据第一消息向 UE发送第二消息, 第二消息用于指 示 UE释放小区、 SCG 、 TAG或者承载;
具体地, 本步骤可以通过如下 (1 ) - ( 3 ) 的步骤来实现, 包括:
( 1 )、 如果第一消息不携带链路失败相关标识, 则第一网络设备将发生失 败的无线链路对应的小区所属 SCG的标识、该 SCG包含的小区的标识、该 SCG 包含的主小区的标识或者该 SCG所服务的承载的标识确定为第一释放标识; 具体地, 如果第一消息不携带链路失败相关标识, 则第一网络设备确定 UE与第二网络设备之间建立的无线链路均发生失败, 第一网络设备获取发生 失败的无线链路对应的小区所属 SCG的标识、 该 SCG包含的小区的标识、 该 SCG包含的主小区的标识或者该 SCG所服务的承载的标识, 将发生失败的无 线链路对应的小区所属 SCG的标识、 该 SCG包含的小区的标识、 该 SCG包 含的主小区的标识或者该 SCG所服务的承载的标识确定为第一释放标识。
其中, 该 SCG所服务的承载的标识可以为 RB的标识, 也可以为 E-RAB 的标识。 优选地, 该 SCG所服务的承载的标识可以为 RB的标识。
其中, 获取该 SCG 包含的小区的标识的具体操作可以为: 第一网络设备 根据发生失败的无线链路对应的小区所属 SCG的标识, 从已存储的 SCG的标 识与小区的标识的对应关系中获取对应的小区的标识, 将获取的小区的标识确 定为该 SCG包含的小区的标识。
其中,每个 SCG内都包含一个主小区,且每个 SCG内可以不包含辅小区, 也可以包含一个或多个辅小区,当 UE与该 SCG内包含的主小区之间建立的无 线链路发生失败时,该 UE也无法通过其与该 SCG内包含的辅小区之间建立的 无线链路与该第二网络设备之间进行数据通信。
其中, 每个 SCG可以服务一个或多个 RB, —个 RB可以同时被 MCG和 一个或者多个 SCG服务, 也可以只被一个 SCG服务。
( 2 )、 如果第一消息携带链路失败相关标识, 则第一网络设备根据该链路 失败相关标识确定第一释放标识;
其中, 第一网络设备根据该链路失败相关标识确定第一释放标识的具体操 作可以为: 如果该链路失败相关标识为发生失败的无线链路对应的小区的标 识, 则将该小区的标识确定为第一释放标识; 如果该链路失败相关标识为发生 失败的无线链路对应的小区所属 SCG的标识, 则将该 SCG的标识、 该 SCG 包含的小区的标识、 该 SCG包含的主小区的标识或者该 SCG所服务的承载的 标识确定为第一释放标识; 如果该链路失败相关标识为发生失败的无线链路对 应的小区所属 TAG的标识, 则将该 TAG的标识或者该 TAG包含的小区的标 识确定为第一释放标识; 如果该链路失败相关标识为发生失败的无线链路对应 的承载的标识, 则将服务该承载的 SCG的标识、 该 SCG包含的小区的标识、 该 SCG包含的主小区的标识或者该 SCG所服务的承载的标识确定为第一释放 标识。
( 3 )、 第一网络设备向 UE发送第二消息, 第二消息携带第一释放标识。 可选地, 如果第一消息不携带链路失败相关标识, 则第一网络设备可以直 接向 UE发送第二消息, 第二消息中也不携带第一释放标识。
S806: 第一网络设备根据第一消息向第二网络设备发送第三消息, 第三消 息用于指示第二网络设备需要释放为该 UE服务的资源;
具体地, 如果第一消息不携带链路失败相关标识, 则将该 UE的标识确定 为第二释放标识; 如果第一消息携带链路失败相关标识, 则根据链路失败相关 标识确定第二释放标识; 向第二网络设备发送第三消息, 第三消息携带第二释 放标识。
其中, 根据链路失败相关标识确定第二释放标识的具体操作可以为: 如果 链路失败相关标识为发生失败的无线链路对应的小区的标识, 则将该 UE的标 识和该小区的标识确定为第二释放标识; 如果链路失败相关标识为发生失败的 链路对应的小区所属 SCG的标识,则将该 UE的标识确定为第二释放标识;如 果链路失败相关标识为发生失败的无线链路对应的小区所属 TAG的标识, 则 将该 UE的标识和该 TAG的标识确定为第二释放标识,或者将该 UE的标识和 该 TAG 包含的小区的标识确定为第二释放标识; 如果链路失败相关标识为发 生失败的无线链路对应的承载的标识,则将该 UE的标识确定为第二释放标识, 或者将该 UE的标识和服务该承载的 SCG所服务的承载的标识确定为第二释放 标识。
其中, 由于发生失败的无线链路对应的承载的标识为 RB的标识, 则服务 该 RB的 SCG所服务的 7 载的标识可以为该 RB的标识, 也可以该 RB对应的 E-RAB ( E-UTRAN Radio Access Bearer, E-UTRAN无线接入 载 ) 的标识。 该 E-RAB的标识为该 RB所对应的 E-RAB的标识, 第一网络设备可以根据该 RB的标识, 从已存储的 RB的标识与 E-RAB的标识的对应关系中获取对应的 E-RAB的标识,将获取的 E-RAB的标识确定为该 RB所对应的 E-RAB的标识。
S807: UE接收第一网络设备发送的第二消息, 该第二消息用于指示 UE 释放小区、 辅小区组 SCG、 时间提前组 TAG或者承载; 根据该第二消息, 释 放小区、 SCG、 TAG或承载。
具体而言, 如果第二消息不携带第一释放标识, 则 UE释放第二网络设备 对应的 SCG。
其中, 如果第二消息中不携带第一释放标识, 则确定 UE与第二网络设备 之间建立的所有无线链路都无法正常使用,UE释放第二网络设备对应的 SCG。
关于 UE释放第二网络设备对应的 SCG的具体操作同以上实施例一的描 述, 在此不再赘述。 如果第二消息携带第一释放标识, 则 UE根据第一释放标 识释放小区、 SCG、 TAG或者承载;
其中, 根据第一释放标识释放小区、 SCG、 TAG或者承载的具体操作可以 为: 如果第一释放标识为小区的标识且该小区为 SCG 包含的辅小区, 则释放 该小区; 如果第一释放标识为小区的标识且该小区为 SCG 包含的主小区、 第 一释放标识为 SCG的标识或者第一释放标识为 SCG包含的所有小区的标识, 则释放该 SCG; 如果第一释放标识为 TAG的标识, 则释放该 TAG; 如果第一 释放标识为 TAG包含的小区的标识, 则释放该 TAG包含的小区; 如果第一释 放标识为 SCG所服务的承载的标识, 则释放该 SCG所服务的承载。
其中, 一个 TAG 包含的小区可以为一个网络设备控制的小区, 也可以为 多个网络设备控制的小区。 相应地, 释放该 TAG 包含的小区的具体操作可以 为: 当该 TAG包含小区为一个网络设备控制的小区时, 则直接释放该 TAG包 含的所有小区。当该 TAG包含的小区为多个网络设备控制的小区,则从该 TAG 包含的小区中选择该第二网络设备控制的小区, 释放选择的小区。
其中, 释放该 SCG所服务的承载的具体操作可以为:
如果该 SCG所服务的承载的标识为 RB的标识, 则当该 RB只被该 SCG 服务时, 则释放该 RB, 即释放与该 RB相关联的 PDCP实体, RLC实体和逻 辑信道; 当该 RB同时被 MCG和该 SCG服务时, 则释放该承载被该 SCG所 服务的部分, 即释放与该承载相关联的 RLC实体和逻辑信道中该 SCG对应的 RLC实体和逻辑信道。
如果该 SCG所服务的承载的标识为 E-RAB的标识, 则 UE根据该 E-RAB 的标识, 从已存储的 RB的标识与 E-RAB的标识的对应关系中获取对应的 RB 的标识。 当该 RB只被该 SCG服务时, 则释放该 RB , 即释放与该 RB相关联 的 PDCP实体, RLC实体和逻辑信道;当该 RB同时被 MCG和该 SCG服务时, 则释放该承载被该 SCG所服务的部分, 即释放与该承载相关联的 RLC实体和 逻辑信道中该 SCG对应的 RLC实体和逻辑信道。
S808: 第二网络设备接收第一网络设备发送的第三消息, 第三消息用于指 示所述第二网络设备释放为 UE服务的资源; 且根据该指示消息, 释放为 UE 服务的资源。
该第三消息可以携带第二释放标识, 根据第二释放标识释放为该 UE服务 的资源。
具体地, 第二网络设备接收该第三消息。 如果第二释放标识为该 UE的标 识, 则释放为该 UE服务的资源; 如果第二释放标识为该 UE的标识和小区的 标识, 则释放为该 UE服务的该小区的资源; 如果第二释放标识为该 UE的标 识和 TAG的标识, 则释放为该 UE服务的该 TAG的资源; 如果第二释放标识 为该 UE的标识和 TAG包含的小区的标识, 则释放为该 UE服务的 TAG包含 的小区的资源;如果第二释放标识为该 UE的标识和服务该承载的 SCG所服务 的承载的标识, 则释放为该 UE的该承载服务的资源。
其中, 一个 TAG 包含的小区可以为一个网络设备控制的小区, 也可以为 多个网络设备控制的小区。 相应地, 释放该 TAG 包含的小区资源的具体操作 可以为:当该 TAG包含小区为一个网络设备控制的小区时,则直接释放该 TAG 包含的所有小区的资源。 当该 TAG 包含的小区为多个网络设备控制的小区, 则从该 TAG 包含的小区中选择该第二网络设备控制的小区, 释放选择的小区 的资源。
其中, 释放为该 UE的该承载服务的资源的具体操作可以为: 如果服务该 承载的 SCG所服务的承载的标识为 RB的标识, 则根据该 RB的标识, 从已存 储的 RB的标识与 E-RAB的标识的对应关系中获取对应的 E-RAB的标识, 释 放为该 UE的该 E-RAB服务的资源。 如果服务该承载的 SCG所服务的承载的 标识为 E-RAB的标识, 则直接释放为该 UE的该 E-RAB服务的资源。
其中, 在本发明实施例中, 第一网络设备可以只指示 UE或第二网络设备 进行资源释放,也可以同时指示 UE和第二网络设备进行资源释放。也就是说, 第一网络设备可以只发送第二消息或第三消息, 也可以同时(或不同时)发送 第二消息和第三消息, 以指示 UE和 /或第二网络设备释放相关的资源与配置, 对此, 本发明实施例不做任何限制。
在本发明实施例中, 当辅基站检测到自身与 UE之间发生了无线链路失败 时, 向主基站上报消息, 以通知主基站在 UE和辅基站之间发生了无线链路失 败。 使得主基站知晓该无线链路失败是发生在 UE和辅基站之间, 因此可以不 再进行 SRB 重建和安全的重新激活等不必要的操作。 此外, 主基站也可以对 该无线链路失败作进一步处理, 例如, 释放辅基站和 /或 UE的相关资源, 使得 辅基站尽早为 UE重配资源, 有效的缩短了无线链路失败引起的用户数据中断 时间, 提高了用户的使用体验。 实施例五
本发明实施例提供了一种无线链路失败的处理设备, 位于用户设备侧, 参 见图 9, 该设备包括:
检测单元 901 , 用于检测该用户设备与第二网络设备之间建立的无线链路 是否发生失败;
发送单元 902, 用于在检测单元 901检测到该用户设备与第二网络设备之 间建立的无线链路发生失败时, 向第一网络设备发送第一消息, 第一消息用于 指示该用户设备与第二网络设备之间建立的无线链路发生失败。
其中, 检测单元 901具体用于:
当检测到该用户设备通过第一无线链路重传随机接入请求的次数达到或 超过随机接入导频码最大重传次数时,确定该用户设备与第二网络设备之间建 立的无线链路发生失败, 其中, 第一无线链路为该用户设备与第二网络设备之 间建立的任一无线链路; 或,
当检测到第一小区对应的定时器达到或超过定时器时长时,确定该用户设 备与第二网络设备之间建立的无线链路发生失败, 其中, 第一小区为第二网络 设备的任一小区; 或,
当检测到该用户设备通过第一无线承载重传无线链路控制 RLC上行数据 的次数达到或超过 RLC上行数据最大重传次数时, 确定该用户设备与第二网 络设备之间建立的无线链路发生失败, 其中, 第一无线承载为第二网络设备为 该用户设备服务的任一无线承载, 且承载在该用户设备与第二网络设备之间建 立的一个或多个无线链路上。
优选地, 参见图 10, 该无线链路失败的处理设备还包括:
接收单元 903, 用于接收配置参数, 该配置参数包括以下参数中的一个或 随机接入导频码最大重传次数、 定时器时长、 和 RLC上行数据最大重传 次数; 其中, 该配置参数是由第一网络设备从第二网络设备获取并发送给该用 户设备; 或者该配置参数是由第二网络设备发送给该用户设备。
进一步地, 该第一消息携带链路失败相关标识, 且链路失败相关标识包括 以下标识中的一个或多个: 发生失败的无线链路对应的小区的标识、 发生失败 的无线链路对应的小区所属辅小区组 SCG的标识、 发生失败的无线链路对应 的小区所属时间提前组 TAG的标识和发生失败的无线链路对应的^载的标识。
优选地, 该第一消息携带链路失败原因。
进一步地, 链路失败原因包括: 随机接入问题、 随机接入导频码的重传次 数达到或超过随机接入导频码最大重传次数、 RLC上行数据重传次数达到或超 过 RLC上行数据最大重传次数、 定时器超时、 或重配置失败。
其中, 接收单元 903还用于接收第一网络设备发送的指示消息, 该指示消 息用于指示该用户设备释放小区、辅小区组 SCG、 时间提前组 TAG或者承载; 且该设备还包括:
释放单元 904, 用于根据该指示消息, 释放小区、 SCG、 TAG或承载。 进一步地, 释放单元 904具体用于:
当该指示消息不携带释放标识时, 释放第二网络设备对应的 SCG;
当该指示消息携带释放标识时, 根据该释放标识释放小区、 SCG、 TAG或 者承载。
其中, 当该指示消息携带释放标识时, 释放单元 804具体用于:
当该释放标识为小区的标识且该小区为 SCG中的辅小区, 释放该小区; 当该释放标识为小区的标识且该小区为 SCG 中的主小区、 或该释放标识 为 SCG 的标识、 或当该释放标识为该 SCG 包含的所有小区的标识, 释放该
SCG;
当该释放标识为 TAG的标识, 释放该 TAG;
当该释放标识为 TAG中的小区的标识, 释放该 TAG中第二网络设备控制 的小区; 或
当该释放标识为 SCG所服务的承载的标识, 释放该 SCG所服务的承载。 需要说明的是, 本实施例中的接收单元可以为 UE的接收机, 发送单元可 以为 UE的发射机; 另外, 也可以将接收单元和发送单元集成在一起构成 UE 的收发机。 检测单元可以为单独设立的处理器, 也可以集成在 UE的某一个处 理器中实现, 此外, 也可以以程序代码的形式存储于 UE的存储器中, 由 UE 的某一个处理器调用并执行以上检测单元的功能。 释放单元的实现同检测单 元, 且可以与检测单元集成在一起, 也可以独立实现。 这里所述的处理器可以 是一个中央处理器 ( Central Processing Unit , CPU ) , 或者是特定集成电路 ( Application Specific Integrated Circuit, ASIC ), 或者是被配置成实施本发明 实施例的一个或多个集成电路。
在本发明实施例中, 当用户设备检测到自身与辅基站之间发生了无线链路 失败时, 向主基站上报消息, 以通知主基站在 UE和辅基站之间发生了无线链 路失败。 使得主基站知晓该无线链路失败是发生在 UE和辅基站之间, 因此可 以不再进行 SRB 重建和安全的重新激活等不必要的操作。 此外, 主基站也可 以对该无线链路失败作进一步处理, 例如, 释放辅基站和 /或 UE的相关资源, 使得辅基站尽早为 UE重配资源, 有效的缩短了无线链路失败引起的用户数据 中断时间, 提高了用户的使用体验。 实施例六
本发明实施例提供了一种无线链路失败检测的设备, 位于第二网络设备 侧, 参见图 11 , 该设备包括:
检测单元 1101 ,用于检测用户设备与该第二网络设备之间建立的无线链路 是否发生失败;
接口单元 1102, 用于在检测单元 1101检测到该用户设备与第二网络设备 之间建立的无线链路发生失败时, 向第一网络设备传送第一消息, 第一消息用 于指示该用户设备与第二网络设备之间建立的无线链路发生失败。
其中, 检测单元 1101具体用于:
当检测到第二网络设备通过第一无线链路尝试接收该用户设备发送的随 机接入请求的次数达到或超过尝试接收随机接入请求的最大次数时, 确定该用 户设备与第二网络设备之间建立的无线链路发生失败, 其中第一无线链路为该 用户设备与第二网络设备之间建立的任一无线链路; 或,
当检测到该第二网络设备通过第一无线链路向该用户设备发送物理下行 控制信道 PDCCH信息达到或超过 PDCCH最大重传次数时, 确定该用户设备 与第二网络设备之间建立的无线链路发生失败, 其中第一无线链路为该用户设 备与第二网络设备之间建立的任一无线链路; 或, 当检测到第二网络设备通过第一无线承载重传无线链路控制 RLC下行数 据的次数达到或超过 RLC下行数据最大重传次数时, 确定该用户设备与第二 网络设备之间建立的无线链路发生失败, 其中第一无线承载为第二网络设备为 该用户设备服务的任一无线承载, 且承载在该用户设备与第二网络设备之间建 立的一个或多个无线链路上; 或,
当检测到第二网络设备通过第一无线链路接收到该用户设备发送的上行 数据的误块率大于或等于预设误块率时, 确定该用户设备与第二网络设备之间 建立的无线链路发生失败, 其中第一无线链路为该用户设备与第二网络设备之 间建立的任一无线链路; 或,
当检测到第二网络设备通过第一无线链路接收到的该用户设备发送的上 行数据的误码率大于或等于预设误码率时,确定该用户设备与第二网络设备之 间建立的无线链路发生失败, 其中第一无线链路为该用户设备与第二网络设备 之间建立的任一无线链路。
进一步地, 接口单元 1102还用于接收第一网络设备发送的配置参数, 该 配置参数包括以下参数中的一个或多个:
尝试接收随机接入请求的最大次数、 PDCCH最大重传次数、 RLC下行数 据最大重传次数、 预设误块率、 和预设误码率。
优选地, 第一消息携带该用户设备的标识, 以及链路失败相关标识, 且链 路失败相关标识包括以下标识中的一个或多个:
发生失败的无线链路对应的小区的标识、发生失败的无线链路对应的小区 所属辅小区组 SCG的标识、 发生失败的无线链路对应的小区所属时间提前组 TAG的标识和发生失败的无线链路对应的 载的标识。
进一步地, 该第一消息携带链路失败原因。
其中, 该链路失败原因包括: 接收随机接入请求的次数达到或超过尝试接 收随机接入请求的最大次数、 PDCCH的重传次数达到或超过 PDCCH最大重 传次数、 RLC下行数据重传次数达到或超过 RLC下行数据最大重传次数、 上 行数据的误块率达到或超过预设误块率、上行数据的误码率达到或超过预设误 码率、 上行接收问题、 或下行发送问题。
进一步地, 接口单元 1102还用于接收第一网络设备发送的指示消息, 该 指示消息用于指示第二网络设备释放为该用户设备服务的资源; 如图 12所示, 该设备还包括: 释放单元 1103, 用于根据该指示消息, 释放为该用户设备服务的资源。 进一步地, 该释放单元 1103具体用于:
当该指示消息包括该用户设备的标识时, 释放为该用户设备服务的资源; 或,
当该指示消息包括该用户设备的标识和小区的标识时,释放为该用户设备 服务的该小区的资源; 或,
当该指示消息包括该用户设备的标识和 TAG的标识时, 释放为该用户设 备服务的该 TAG的资源; 或,
当该指示消息包括该用户设备的标识和该 TAG 包含的小区的标识时, 释 放为 UE服务的该 TAG包含的第二网络设备控制的小区的资源; 或,
当该指示消息包括该用户设备的标识和承载的标识时,释放为该用户设备 的该承载服务的资源。
需要说明的是, 本实施例中的接口单元可以为第二网络设备与第一网络设 备通信的接口电路。 检测单元可以为单独设立的处理器, 也可以集成在第二网 络设备的某一个处理器中实现, 此外, 也可以以程序代码的形式存储于第二网 络设备的存储器中, 由第二网络设备的某一个处理器调用并执行以上检测单元 的功能。 释放单元的实现同检测单元, 且可以与检测单元集成在一起, 也可以 独立实现。 这里所述的处理器可以是一个中央处理器( Central Processing Unit, CPU ), 或者是特定集成电路(Application Specific Integrated Circuit, ASIC ), 或者是被配置成实施本发明实施例的一个或多个集成电路。
在本发明实施例中, 当辅基站检测到自身与 UE之间发生了无线链路失败 时, 向主基站上报消息, 以通知主基站在 UE和辅基站之间发生了无线链路失 败。 使得主基站知晓该无线链路失败是发生在 UE和辅基站之间, 因此可以不 再进行 SRB 重建和安全的重新激活等不必要的操作。 此外, 主基站也可以对 该无线链路失败作进一步处理, 例如, 释放辅基站和 /或 UE的相关资源, 使得 辅基站尽早为 UE重配资源, 有效的缩短了无线链路失败引起的用户数据中断 时间, 提高了用户的使用体验。 实施例七
本发明实施例提供了一种无线链路失败检测的设备, 位于第一网络设备 侧, 参见图 13 , 该设备包括: 收发单元 1301 , 用于与用户设备通信;
接口单元 1302, 用于与第二网络设备通信;
获取单元 1303 ,用于通过收发单元 1301或接口单元 1302从该用户设备或 第二网络设备获取第一消息, 第一消息为该用户设备与第二网络设备之间建立 的无线链路发生失败时, 由该用户设备或第二网络设备上报给第一网络设备 的;
确定单元 1304 ,用于根据第一消息确定该用户设备与第二网络设备之间建 立的无线链路发生失败。
其中, 第一消息携带链路失败相关标识, 且链路失败相关标识包括以下标 识中的一个或多个:
发生失败的无线链路对应的小区的标识、发生失败的无线链路对应的小区 所属辅小区组 SCG的标识、 发生失败的无线链路对应的小区所属时间提前组 TAG的标识和发生失败的无线链路对应的 载的标识。
进一步地, 第一消息还携带该用户设备的标识。
优选地, 第一消息携带链路失败原因。
其中, 链路失败原因包括: 随机接入问题、 随机接入导频码的重传次数达 到或超过 RLC 上行数据最大重传次数、 RLC 上行数据重传次数达到或超过 RLC上行数据最大重传次数、 定时器超时、 重配置失败、接收随机接入请求的 次数达到或超过尝试接收随机接入请求的最大次数、 PDCCH 的重传次数达到 或超过 PDCCH最大重传次数、 RLC下行数据重传次数达到或超过 RLC下行 数据最大重传次数、 上行数据的误块率达到或超过预设误块率、 上行数据的误 码率达到或超过预设误码率、 上行接收问题、 或下行发送问题。
进一步地, 确定单元 1304在确定该用户设备与第二网络设备之间建立的 无线链路发生失败之后, 还用于:
触发收发单元 1301 向该用户设备发送第二消息, 第二消息用于指示该用 户设备释放小区、 辅小区组 SCG、 时间提前组 TAG或者承载; 和 /或,
触发接口单元 1302向第二网络设备发送第三消息, 第三消息用于指示第 二网络设备释放为该用户设备服务的资源。
进一步地,确定单元 1304具体还用于触发收发单元 1301向该用户设备发 送携带第一释放标识的第二消息, 其中:
在第一消息不携带链路失败相关标识时, 第一释放标识包括发生失败的无 线链路对应的小区所属 SCG的标识、 SCG包含的小区的标识、 SCG包含的主 小区的标识、 或者 SCG所服务的承载的标识; 或
在第一消息携带链路失败相关标识时, 第一释放标识是根据该链路失败相 关标识确定的。
其中, 在第一消息携带链路失败相关标识时,
当该链路失败相关标识包括发生失败的无线链路对应的小区的标识, 第一 释放标识包括该小区的标识; 或,
当该链路失败相关标识包括发生失败的无线链路对应的小区所属 SCG的 标识, 第一释放标识包括该 SCG的标识、 该 SCG包含的小区的标识、 该 SCG 包含的主小区的标识或者该 SCG所服务的承载的标识; 或,
当该链路失败相关标识包括发生失败的无线链路对应的小区所属 TAG的 标识, 第一释放标识包括该 TAG的标识或者该 TAG包含的小区的标识; 或, 当该链路失败相关标识包括发生失败的无线链路对应的承载的标识, 第一 释放标识包括服务承载的 SCG的标识、 SCG包含的小区的标识、 SCG包含的 主小区的标识或者 SCG所服务的承载的标识。
其中, 确定单元 1304具体还用于触发接口单元 1302向第二网络设备发送 携带第二释放标识的第三消息, 其中:
当第一消息不携带链路失败相关标识时, 第二释放标识包括该用户设备的 标识 ^ 或,
当第一消息携带链路失败相关标识时, 第二释放标识是根据该链路失败相 关标识确定的。
其中, 在第一消息携带链路失败相关标识时,
当该链路失败相关标识包括发生失败的无线链路对应的小区的标识, 第二 释放标识包括该用户设备的标识和该小区的标识; 或,
当该链路失败相关标识包括发生失败的无线链路对应的小区所属 SCG的 标识, 第二释放标识包括该用户设备的标识; 或,
当该链路失败相关标识包括发生失败的无线链路对应的小区所属 TAG的 标识, 第二释放标识包括该用户设备的标识和该 TAG的标识, 或者包括该用 户设备的标识和 TAG包含的小区的标识; 或,
当该链路失败相关标识包括发生失败的无线链路对应的承载的标识, 第二 释放标识包括该用户设备的标识, 或者包括该用户设备的标识和服务该承载的 SCG所服务的承载的标识。
进一步地, 收发单元 1301具体还用于:
向该用户设备发送第一配置参数, 第一配置参数包括以下参数中的一个或 多个: 随机接入导频码最大重传次数、 定时器时长、 和无线链路控制 RLC上 行数据最大重传次数; 和 /或
向第二网络设备发送第二配置参数, 第二配置参数包括以下参数中的一个 或多个: 尝试接收随机接入请求的最大次数、 物理下行控制信道 PDCCH最大 重传次数、 RLC下行数据最大重传次数、 预设误块率、 和预设误码率。
需要说明的是, 本实施例中的接收单元可以为第一网络设备的接收机; 另 外, 也可以将接收单元和收发单元集成在一起构成第一网络设备的收发机。 获 取单元可以为单独设立的处理器, 也可以集成在第一网络设备的某一个处理器 中实现, 此外, 也可以以程序代码的形式存储于第一网络设备的存储器中, 由 第一网络设备的某一个处理器调用并执行以上获取单元的功能。确定单元的实 现同获取单元, 且可以与获取单元集成在一起, 也可以独立实现。 这里所述的 处理器可以是一个中央处理器(Central Processing Unit, CPU ), 或者是特定集 成电路 ( Application Specific Integrated Circuit, ASIC ), 或者是被配置成实施 本发明实施例的一个或多个集成电路。
在本发明实施例中, 当用户设备或者辅基站检测到 UE与辅基站之间发生 了无线链路失败时, 向主基站上报消息, 以通知主基站在 UE和辅基站之间发 生了无线链路失败。 使得主基站知晓该无线链路失败是发生在 UE和辅基站之 间, 因此可以不再进行 SRB 重建和安全的重新激活等不必要的操作。 此外, 主基站也可以对该无线链路失败作进一步处理, 例如, 释放辅基站和 /或 UE的 相关资源, 使得辅基站尽早为 UE重配资源, 有效的缩短了无线链路失败引起 的用户数据中断时间, 提高了用户的使用体验。 实施例八
请继续参考图 14, 为本发明 UE另一实施例结构示意图。 如图 14所示, 该 UE包括接收机 1401、 发射机 1402、 存储器 1403和处理器 1404。 其中, 接 收机 1401、 发射机 1402、 和存储器 1403均与处理器 1404连接, 例如, 可以 通过总线连接。 当然, UE还可以包括天线、 基带处理部件、 中射频处理部件、 输入输出装置等通用部件, 本发明实施例在此不再任何限制。 接收机 1401和发射机 1402可以集成在一起, 构成收发机。
存储器 1403用于存储可执行程序代码, 该程序代码包括计算机操作指令。 存储器 1403 可能包含高速 RAM 存储器, 也可能还包括非易失性存储器 ( non-volatile memory ), 例如至少一个磁盘存储器。
处理器 1404可以是一个中央处理器(Central Processing Unit, CPU ), 或 者是特定集成电路 ( Application Specific Integrated Circuit, ASIC ), 或者是被 配置成实施本发明实施例的一个或多个集成电路。
处理器 1404执行存储器 1403中存储的程序代码, 以检测 UE与第二网络 设备之间建立的无线链路是否发生失败, 当检测到 UE与第二网络设备之间建 立的无线链路发生失败时, 通过发射机 1402向第一网络设备发送第一消息, 所述第一消息用于指示所述用户设备与所述第二网络设备之间建立的无线链 路发生失败。
具体的, 处理器 1404检测 UE与第二网络设备之间建立的无线链路是否 发生失败的方式同以上实施例一、 实施例二以及实施例五中的检测单元 901的 描述, 在此不再赘述。
此外, 处理器 1404检测 UE与第二网络设备之间建立的无线链路是否发 生失败所用到的参数可以是通过接收机 1401从第一网络设备获取的, 也可以 是通过接收机 1401从第二网络设备获取的, 其内容同以上实施例一、 二和五, 在此不再赘述。
关于第一消息的内容同以上实施例一、 二和五, 在此不再赘述。
处理器 1404在通过发射机 1402向第一网络设备发送第一消息之后,还可 以通过接收机 1401接收到第一网络设备发送的指示消息, 该指示消息用于指 示 UE释放小区、 辅小区组 SCG、 时间提前组 TAG或者承载; 处理器 1404进 一步用于根据该指示消息, 释放小区、 SCG、 TAG或承载。
处理器 1404释放小区、 SCG、 TAG或^载的过程同以上实施例一、 二和 五, 在此不再赘述。
在本发明实施例中, 当用户设备检测到自身与辅基站之间发生了无线链路 失败时, 向主基站上报消息, 以通知主基站在 UE和辅基站之间发生了无线链 路失败。 使得主基站知晓该无线链路失败是发生在 UE和辅基站之间, 因此可 以不再进行 SRB 重建和安全的重新激活等不必要的操作。 此外, 主基站也可 以对该无线链路失败作进一步处理, 例如, 释放辅基站和 /或 UE的相关资源, 使得辅基站尽早为 UE重配资源, 有效的缩短了无线链路失败引起的用户数据 中断时间, 提高了用户的使用体验。 实施例九
请继续参考图 15 , 为本发明第一网络设备另一实施例结构示意图。 如图 15所示, 第一网络设备包括接收机 1501、 发射机 1502、 存储器 1503、 接口电 路 1505和处理器 1504。 其中, 接收机 1501、 发射机 1502、、 接口电路 1505 和存储器 1503均与处理器 1504连接, 例如, 可以通过总线连接。 当然, 第一 网络设备还可以包括天线、 基带处理部件、 中射频处理部件、 输入输出装置等 通用部件, 本发明实施例在此不再任何限制。
接收机 1501和发射机 1502可以集成在一起, 构成收发机。
存储器 1503用于存储可执行程序代码, 该程序代码包括计算机操作指令。 存储器 1503 可能包含高速 RAM 存储器, 也可能还包括非易失性存储器 ( non-volatile memory ), 例如至少一个磁盘存储器。
处理器 1504可以是一个中央处理器(Central Processing Unit, CPU ), 或 者是特定集成电路 ( Application Specific Integrated Circuit, ASIC ), 或者是被 配置成实施本发明实施例的一个或多个集成电路。
接口电路 1505用于与其它网络设备相连, 例如可以是光纤接口, 以通过 光纤实现与第二网络设备的通信。
处理器 1504用于通过接口电路 1505或接收机 1501从第二网络设备或 UE 获得第一消息, 该第一消息是在第二网络设备或 UE检测到 UE与第二网络设 备之间建立的无线链路发生失败时, 由第二网络设备或 UE上报给该第一网络 设备的; 处理器 1504获得该第一消息之后, 便可以确定 UE与第二网络设备 之间建立的无线链路发生失败。
进一步, 处理器 1504还可以对该失败进行后续处理。 例如, 分别通过发 射机 1502和接口电路 1505向 UE和第二网络设备下发指示消息(第二消息和 第三消息), 以分别指示 UE释放小区、 辅小区组 SCG、 时间提前组 TAG或者 承载, 指示第二网络设备释放为 UE服务的资源。 当然, 处理器 1504也可以 仅向 UE或仅向第二网络设备下发指示消息。
关于指示消息(例如, 第二消息和第三消息)的描述同以上实施例, 在此 不再赘述。 关于第一消息的内容同以上实施例, 在此不再赘述。
此外, 处理器 1504还可以配置 UE和第二网络设备检测链路失败的参数, 例如, 处理器 1504可以通过发射机 1502向 UE发送配置参数, 以供 UE检测 UE与第二网络设备之间建立的无线链路是否发生失败, 该配置参数同以上实 施例一、 二和五的描述, 在此不再赘述。 再如, 处理器 1504可以通过接口电 路 1505向第二网络设备发送配置参数, 以供第二网络设备检测 UE与第二网 络设备之间建立的无线链路是否发生失败, 该配置参数同以上实施例三、 四和 六的描述, 在此不再赘述。 在本发明实施例中, 当用户设备或者辅基站检测到 UE与辅基站之间发生 了无线链路失败时, 向主基站上报消息, 以通知主基站在 UE和辅基站之间发 生了无线链路失败。 使得主基站知晓该无线链路失败是发生在 UE和辅基站之 间, 因此可以不再进行 SRB 重建和安全的重新激活等不必要的操作。 此外, 主基站也可以对该无线链路失败作进一步处理, 例如, 释放辅基站和 /或 UE的 相关资源, 使得辅基站尽早为 UE重配资源, 有效的缩短了无线链路失败引起 的用户数据中断时间, 提高了用户的使用体验。 实施例十
请继续参考图 16, 为本发明第二网络设备另一实施例结构示意图。 如图 16所示, 第二网络设备包括接收机 1601、 发射机 1602、 存储器 1603、 接口电 路 1605、 和处理器 1604。 其中, 接收机 1601、 发射机 1602、 接口电路 1605 和存储器 1603均与处理器 1604连接, 例如, 可以通过总线连接。 当然, 第二 网络设备还可以包括天线、 基带处理部件、 中射频处理部件、 输入输出装置等 通用部件, 本发明实施例在此不再任何限制。
接收机 1601和发射机 1602可以集成在一起, 构成收发机。
存储器 1603用于存储可执行程序代码, 该程序代码包括计算机操作指令。 存储器 1603 可能包含高速 RAM 存储器, 也可能还包括非易失性存储器 ( non-volatile memory ), 例如至少一个磁盘存储器。
处理器 1604可以是一个中央处理器(Central Processing Unit, CPU ), 或 者是特定集成电路 ( Application Specific Integrated Circuit, ASIC ), 或者是被 配置成实施本发明实施例的一个或多个集成电路。 接口电路 1605用于与其它网络设备相连, 例如可以是光纤接口, 以通过 光纤实现与第二网络设备的通信。
处理器 1604执行存储器 1603中存储的程序代码, 以检测 UE与第二网络 设备之间建立的无线链路是否发生失败, 当检测到 UE与第二网络设备之间建 立的无线链路发生失败时,通过接口电路 1605向第一网络设备发送第一消息, 所述第一消息用于指示所述用户设备与所述第二网络设备之间建立的无线链 路发生失败。
具体的, 处理器 1604检测 UE与第二网络设备之间建立的无线链路是否 发生失败的方式同以上实施例三、 实施例四以及实施例六中的检测单元 1101 的描述, 在此不再赘述。
此外, 处理器 1604检测 UE与第二网络设备之间建立的无线链路是否发 生失败所用到的参数可以是通过接口电路 1605从第一网络设备获取的, 也可 以是预设于本地的, 其内容同以上实施例三、 四和六, 在此不再赘述。
关于第一消息的内容同以上实施例三、 四和六, 在此不再赘述。
处理器 1604在通过接口电路 1605向第一网络设备发送第一消息之后,还 可以通过接口电路 1605接收到第一网络设备发送的指示消息, 该指示消息用 于指示释放为 UE服务的资源; 处理器 1604进一步用于根据该指示消息, 释 放为 UE服务的资源。
处理器 1404为 UE服务的资源的过程同以上实施例三、 四和六, 在此不 再赘述。
在本发明实施例中, 当辅基站检测到自身与 UE之间发生了无线链路失败 时, 向主基站上报消息, 以通知主基站在 UE和辅基站之间发生了无线链路失 败。 使得主基站知晓该无线链路失败是发生在 UE和辅基站之间, 因此可以不 再进行 SRB 重建和安全的重新激活等不必要的操作。 此外, 主基站也可以对 该无线链路失败作进一步处理, 例如, 释放辅基站和 /或 UE的相关资源, 使得 辅基站尽早为 UE重配资源, 有效的缩短了无线链路失败引起的用户数据中断 时间, 提高了用户的使用体验。 本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通 过硬件来完成, 也可以通过程序来指令相关的硬件完成, 所述的程序可以存储 于一种计算机可读存储介质中, 上述提到的存储介质可以是只读存储器, 磁盘 或光盘等。 以上所述仅为本发明的较佳实施例, 并不用以限制本发明, 凡在本发明的 精神和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的 保护范围之内。

Claims

权 利 要 求 书
1、 一种无线链路失败的处理方法, 其特征在于, 所述方法包括: 用户设备检测所述用户设备与第二网络设备之间建立的无线链路是否发生 失败;
当检测到所述用户设备与所述第二网络设备之间建立的无线链路发生失败 时, 所述用户设备向第一网络设备发送第一消息, 所述第一消息用于指示所述 用户设备与所述第二网络设备之间建立的无线链路发生失败。
2、 如权利要求 1所述的方法, 其特征在于, 所述用户设备检测所述用户设 备与第二网络设备之间建立的无线链路是否发生失败, 包括:
当检测到所述用户设备通过第一无线链路重传随机接入请求的次数达到或 超过随机接入导频码最大重传次数时, 确定所述用户设备与所述第二网络设备 之间建立的无线链路发生失败, 其中, 所述第一无线链路为所述用户设备与所 述第二网络设备之间建立的任一无线链路; 或,
当检测到第一小区对应的定时器达到或超过定时器时长时, 确定所述用户 设备与所述第二网络设备之间建立的无线链路发生失败, 其中, 所述第一小区 为所述第二网络设备的任一小区; 或,
当检测到所述用户设备通过第一无线承载重传无线链路控制 RLC上行数据 的次数达到或超过 RLC上行数据最大重传次数时, 确定所述用户设备与所述第 二网络设备之间建立的无线链路发生失败, 其中, 所述第一无线承载为所述第 二网络设备为所述用户设备服务的任一无线承载, 且承载在所述用户设备与所 述第二网络设备之间建立的一个或多个无线链路上。
3、 如权利要求 2所述的方法, 其特征在于, 所述用户设备检测所述用户设 备与第二网络设备之间建立的无线链路是否发生失败之前, 还包括:
接收配置参数, 所述配置参数包括以下参数中的一个或多个:
所述随机接入导频码最大重传次数、 所述定时器时长、 和所述 RLC上行数 据最大重传次数; 其中, 所述配置参数是由所述第一网络设备从所述第二网络 设备获取并发送给所述用户设备; 或者所述配置参数是由所述第二网络设备发 送给所述用户设备。
4、 如权利要求 1-3任一项所述的方法, 其特征在于, 所述第一消息携带链 路失败相关标识, 且所述链路失败相关标识包括以下标识中的一个或多个: 发生失败的无线链路对应的小区的标识、 发生失败的无线链路对应的小区 所属辅小区组 SCG 的标识、 发生失败的无线链路对应的小区所属时间提前组 TAG的标识和发生失败的无线链路对应的承载的标识。
5、 如权利要求 1-4任一项所述的方法, 其特征在于, 所述第一消息携带链 路失败原因。
6、 如权利要求 5所述的方法, 其特征在于, 所述链路失败原因包括: 随机 接入问题、 随机接入导频码的重传次数达到或超过随机接入导频码的最大重传 次数、 RLC上行数据重传次数达到或超过 RLC上行数据最大重传次数、 定时器 超时、 或重配置失败。
7、 如权利要求 1-6任一权利要求所述的方法, 其特征在于, 所述用户设备 向第一网络设备发送第一消息之后, 还包括:
接收所述第一网络设备发送的指示消息, 所述指示消息用于指示所述用户 设备释放小区、 辅小区组 SCG、 时间提前组 TAG或者承载;
根据所述指示消息, 释放小区、 SCG、 TAG或承载。
8、 如权利要求 7所述的方法, 其特征在于, 所述根据所述指示消息, 释放 小区、 SCG、 TAG或承载, 包括:
当所述指示消息不携带释放标识时, 释放所述第二网络设备对应的 SCG; 当所述指示消息携带释放标识时,根据所述释放标识释放小区、 SCG、 TAG 或者承载。
9、 如权利要求 8所述的方法, 其特征在于, 所述根据所述释放标识释放小 区、 SCG、 TAG或者承载, 包括:
当所述释放标识为小区的标识且所述小区为 SCG中的辅小区, 释放所述小 区;
当所述释放标识为小区的标识且所述小区为 SCG中的主小区、 或当所述释 放标识为 SCG的标识、 或当所述释放标识为所述 SCG包含的所有小区的标识, 释放所述 SCG;
当所述释放标识为 TAG的标识, 释放所述 TAG;
当所述释放标识为 TAG中的小区的标识, 释放所述 TAG中所述第二网络 设备控制的所述小区; 或
当所述释放标识为 SCG所服务的承载的标识,释放所述 SCG所服务的承载。
10、 一种无线链路失败的处理方法, 其特征在于, 所述方法包括: 第二网络设备检测用户设备与所述第二网络设备之间建立的无线链路是否 发生失败;
当检测到所述用户设备与所述第二网络设备之间建立的无线链路发生失败 时, 所述第二网络设备向第一网络设备传送第一消息, 所述第一消息用于指示 所述用户设备与所述第二网络设备之间建立的无线链路发生失败。
11、 如权利要求 10所述的方法, 其特征在于, 所述第二网络设备检测用户 设备与所述第二网络设备之间建立的无线链路是否发生失败, 包括:
当检测到所述第二网络设备通过第一无线链路尝试接收所述用户设备发送 的随机接入请求的次数达到或超过尝试接收随机接入请求的最大次数时, 确定 所述用户设备与所述第二网络设备之间建立的无线链路发生失败, 其中所述第 一无线链路为所述用户设备与所述第二网络设备之间建立的任一无线链路; 或, 当检测到所述第二网络设备通过第一无线链路向所述用户设备发送物理下 行控制信道 PDCCH信息达到或超过 PDCCH最大重传次数时,确定所述用户设 备与所述第二网络设备之间建立的无线链路发生失败, 其中所述第一无线链路 为所述用户设备与所述第二网络设备之间建立的任一无线链路; 或,
当检测到所述第二网络设备通过第一无线承载重传无线链路控制 RLC下行 数据的次数达到或超过 RLC下行数据最大重传次数时, 确定所述用户设备与所 述第二网络设备之间建立的无线链路发生失败, 其中所述第一无线承载为所述 第二网络设备为所述用户设备服务的任一无线承载, 且承载在所述用户设备与 所述第二网络设备之间建立的一个或多个无线链路上; 或,
当检测到所述第二网络设备通过第一无线链路接收到的所述用户设备发送 的上行数据的误块率大于或等于预设误块率时, 确定所述用户设备与所述第二 网络设备之间建立的无线链路发生失败, 其中所述第一无线链路为所述用户设 备与所述第二网络设备之间建立的任一无线链路; 或,
当检测到所述第二网络设备通过第一无线链路接收到的所述用户设备发送 的上行数据的误码率大于或等于预设误码率时, 确定所述用户设备与所述第二 网络设备之间建立的无线链路发生失败, 其中所述第一无线链路为所述用户设 备与所述第二网络设备之间建立的任一无线链路。
12、 如权利要求 11所述的方法, 其特征在于, 所述第二网络设备检测用户 设备与所述第二网络设备之间建立的无线链路是否发生失败之前, 还包括: 接收所述第一网络设备发送的配置参数, 所述配置参数包括以下参数中的 一个或多个:
所述尝试接收随机接入请求的最大次数、所述 PDCCH最大重传次数、所述 RLC下行数据最大重传次数、 所述预设误块率、 和所述预设误码率。
13、 如权利要求 10-12任一项所述的方法, 其特征在于, 所述第一消息携带 所述用户设备的标识, 以及链路失败相关标识, 且所述链路失败相关标识包括 以下标识中的一个或多个:
发生失败的无线链路对应的小区的标识、 发生失败的无线链路对应的小区 所属辅小区组 SCG 的标识、 发生失败的无线链路对应的小区所属时间提前组 TAG的标识和发生失败的无线链路对应的承载的标识。
14、 如权利要求 10-13任一项所述的方法, 其特征在于, 所述第一消息携带 链路失败原因。
15、 如权利要求 14所述的方法, 其特征在于, 所述链路失败原因包括: 随 机接入问题、 接收随机接入请求的次数达到或超过尝试接收随机接入请求的最 大次数、 PDCCH的重传次数达到或超过 PDCCH最大重传次数、 RLC下行数据 重传次数达到或超过 RLC下行数据最大重传次数、 上行数据的误块率达到或超 过预设误块率、 上行数据的误码率达到或超过预设误码率、 上行接收问题、 或 下行发送问题。
16、 如权利要求 10-15任一项所述的方法, 其特征在于, 所述第二网络设备 向第一网络设备发送第一消息之后, 还包括:
接收所述第一网络设备发送的指示消息, 所述指示消息用于指示所述第二 网络设备释放为所述用户设备服务的资源;
根据所述指示消息, 释放为所述用户设备服务的资源。
17、 如权利要求 16所述的方法, 其特征在于, 所述根据所述指示消息释放 为所述用户设备服务的资源, 包括:
当所述指示消息包括所述用户设备的标识时, 释放为所述用户设备服务的 资源; 或,
当所述指示消息包括所述用户设备的标识和小区的标识时, 释放为所述用 户设备服务的所述小区的资源; 或,
当所述指示消息包括所述用户设备的标识和 TAG的标识时, 释放为所述用 户设备服务的所述 TAG的资源; 或,
当所述指示消息包括所述用户设备的标识和所述 TAG中的小区的标识时, 释放为所述用户设备服务的所述 TAG包含的所述第二网络设备控制的所述小区 的资源; 或,
当所述指示消息包括所述用户设备的标识和承载的标识时, 释放为所述用 户设备的所述承载服务的资源。
18、 一种无线链路失败的处理方法, 其特征在于, 所述方法包括: 第一网络设备接收第一消息, 所述第一消息为用户设备与第二网络设备之 间建立的无线链路发生失败时, 由所述用户设备或所述第二网络设备上报给所 述第一网络设备的;
所述第一网络设备根据所述第一消息确定所述用户设备与所述第二网络设 备之间建立的无线链路发生失败。
19、 如权利要求 18所述的方法, 其特征在于, 所述第一消息携带链路失败 相关标识, 且所述链路失败相关标识包括以下标识中的一个或多个:
发生失败的无线链路对应的小区的标识、 发生失败的无线链路对应的小区 所属辅小区组 SCG 的标识、 发生失败的无线链路对应的小区所属时间提前组 TAG的标识和发生失败的无线链路对应的承载的标识。
20、 如权利要求 19所述的方法, 其特征在于, 所述第一消息还携带所述用 户设备的标识。
21、 如权利要求 18-20任一项所述的方法, 其特征在于, 所述第一消息携带 链路失败原因。
22、 如权利要求 21所述的方法, 其特征在于, 所述链路失败原因包括: 随 机接入问题、 随机接入导频码的重传次数达到或超过 RLC上行数据最大重传次 数、 RLC上行数据重传次数达到或超过 RLC上行数据最大重传次数、 定时器超 时、 重配置失败、 接收随机接入请求的次数达到或超过尝试接收随机接入请求 的最大次数、 PDCCH的重传次数达到或超过 PDCCH最大重传次数、 RLC下行 数据重传次数达到或超过 RLC下行数据最大重传次数、 上行数据的误块率达到 或超过预设误块率、 上行数据的误码率达到或超过预设误码率、 上行接收问题、 或下行发送问题。
23、 如权利要求 18-22任一项所述的方法, 其特征在于, 所述第一网络设备 根据所述第一消息确定所述用户设备与所述第二网络设备之间建立的无线链路 发生失败之后, 还包括:
根据所述第一消息向所述用户设备发送第二消息, 所述第二消息用于指示 所述用户设备释放小区、 辅小区组 SCG、 时间提前组 TAG或者承载; 和 /或, 根据所述第一消息向所述第二网络设备发送第三消息, 所述第三消息用于 指示所述第二网络设备释放为所述用户设备服务的资源。
24、 如权利要求 23所述的方法, 其特征在于, 所述根据所述第一消息向所 述用户设备发送第二消息, 包括:
如果所述第一消息不携带链路失败相关标识, 将所述发生失败的无线链路 对应的小区所属 SCG的标识、 所述 SCG包含的小区的标识、 所述 SCG包含的 主小区的标识、 或者所述 SCG所服务的承载的标识确定为第一释放标识;
如果所述第一消息携带链路失败相关标识, 根据所述链路失败相关标识确 定第一释放标识;
向所述用户设备发送第二消息, 所述第二消息携带所述第一释放标识。
25、 如权利要求 24所述的方法, 其特征在于, 所述根据所述链路失败相关 标识确定第一释放标识, 包括:
当所述链路失败相关标识包括发生失败的无线链路对应的小区的标识, 将 所述小区的标识确定为第一释放标识; 或,
当所述链路失败相关标识包括发生失败的无线链路对应的小区所属 SCG的 标识, 将所述 SCG的标识、 所述 SCG包含的小区的标识、 所述 SCG包含的主 小区的标识或者所述 SCG所服务的承载的标识确定为第一释放标识; 或,
当所述链路失败相关标识包括发生失败的无线链路对应的小区所属 TAG的 标识, 将所述 TAG的标识或者所述 TAG包含的小区的标识确定为第一释放标 识; 或,
当所述链路失败相关标识包括发生失败的无线链路对应的承载的标识, 将 服务所述承载的 SCG的标识、 所述 SCG包含的小区的标识、 所述 SCG包含的 主小区的标识或者所述 SCG所服务的承载的标识确定为第一释放标识。
26、 如权利要求 23所述的方法, 其特征在于, 所述根据所述第一消息向所 述第二网络设备发送第三消息, 包括:
如果所述第一消息不携带链路失败相关标识, 将所述用户设备的标识确定 为第二释放标识;
如果所述第一消息携带链路失败相关标识, 根据所述链路失败相关标识确 定第二释放标识;
向所述第二网络设备发送第三消息, 所述第三消息携带所述第二释放标识。
27、 如权利要求 26所述的方法, 其特征在于, 所述根据所述链路失败相关 标识确定第二释放标识, 包括:
当所述链路失败相关标识包括发生失败的无线链路对应的小区的标识, 将 所述用户设备的标识和所述小区的标识确定为第二释放标识; 或,
当所述链路失败相关标识包括发生失败的无线链路对应的小区所属 SCG的 标识, 将所述用户设备的标识确定为第二释放标识; 或,
当所述链路失败相关标识包括发生失败的无线链路对应的小区所属 TAG的 标识, 将所述用户设备的标识和所述 TAG的标识确定为第二释放标识, 或者将 所述用户设备的标识和所述 TAG包含的小区的标识确定为第二释放标识; 或, 当所述链路失败相关标识包括发生失败的无线链路对应的承载的标识, 将 所述用户设备的标识确定为第二释放标识, 或者将所述用户设备的标识和服务 所述承载的 SCG所服务的承载的标识确定为第二释放标识。
28、 如权利要求 18-27任一项所述的方法, 其特征在于, 所述接收第一消息 之前, 还包括:
向所述用户设备发送第一配置参数, 所述第一配置参数包括以下参数中的 一个或多个: 随机接入导频码最大重传次数、定时器时长、和无线链路控制 RLC 上行数据最大重传次数; 和 /或
向所述第二网络设备发送第二配置参数, 所述第二配置参数包括以下参数 中的一个或多个: 尝试接收随机接入请求的最大次数、 物理下行控制信道 PDCCH最大重传次数、 RLC下行数据最大重传次数、 预设误块率、 和预设误码 率。
29、 一种无线链路失败的处理设备, 位于用户设备侧, 其特征在于, 所述 设备包括:
检测单元, 用于检测所述用户设备与第二网络设备之间建立的无线链路是 否发生失败;
发送单元, 用于在检测单元检测到所述用户设备与所述第二网络设备之间 建立的无线链路发生失败时, 向第一网络设备发送第一消息, 所述第一消息用 于指示所述用户设备与所述第二网络设备之间建立的无线链路发生失败。
30、 如权利要求 29所述的设备, 其特征在于, 所述检测单元具体用于: 当检测到所述用户设备通过第一无线链路重传随机接入请求的次数达到或 超过随机接入导频码最大重传次数时, 确定所述用户设备与所述第二网络设备 之间建立的无线链路发生失败, 其中, 所述第一无线链路为所述用户设备与所 述第二网络设备之间建立的任一无线链路; 或,
当检测到第一小区对应的定时器达到或超过定时器时长时, 确定所述用户 设备与所述第二网络设备之间建立的无线链路发生失败, 其中, 所第一小区为 所述第二网络设备的任一小区; 或,
当检测到所述用户设备通过第一无线承载重传无线链路控制 RLC上行数据 的次数达到或超过 RLC上行数据最大重传次数时, 确定所述用户设备与第二网 络设备之间建立的无线链路发生失败, 其中, 所述第一无线承载为所述第二网 络设备为所述用户设备服务的任一无线承载, 且承载在所述用户设备与所述第 二网络设备之间建立的一个或多个无线链路上。
31、 如权利要求 30所述的设备, 其特征在于, 还包括:
接收单元, 用于接收配置参数, 所述配置参数包括以下参数中的一个或多 个:
所述随机接入导频码最大重传次数、 所述定时器时长、 和所述 RLC上行数 据最大重传次数; 其中, 所述配置参数是由所述第一网络设备从所述第二网络 设备获取并发送给所述用户设备; 或者所述配置参数是由所述第二网络设备发 送给所述用户设备。
32、 如权利要求 29-31任一项所述的设备, 其特征在于, 所述第一消息携带 链路失败相关标识, 且所述链路失败相关标识包括以下标识中的一个或多个: 发生失败的无线链路对应的小区的标识、 发生失败的无线链路对应的小区 所属辅小区组 SCG 的标识、 发生失败的无线链路对应的小区所属时间提前组 TAG的标识和发生失败的无线链路对应的承载的标识。
33、 如权利要求 29-32任一项所述的设备, 其特征在于, 所述第一消息携带 链路失败原因。
34、 如权利要求 33所述的设备, 其特征在于, 所述链路失败原因包括: 随 机接入问题、 随机接入导频码的重传次数达到或超过随机接入导频码最大重传 次数、 RLC上行数据重传次数达到或超过 RLC上行数据最大重传次数、 定时器 超时、 或重配置失败。
35、 如权利要求 29-34任一项所述的设备, 其特征在于, 所述接收单元还用 于接收所述第一网络设备发送的指示消息, 所述指示消息用于指示所述用户设 备释放小区、 辅小区组 SCG、 时间提前组 TAG或者承载; 且所述设备还包括: 释放单元, 用于根据所述指示消息, 释放小区、 SCG、 TAG或承载。
36、 如权利要求 35所述的设备, 其特征在于, 所述释放单元具体用于: 当所述指示消息不携带释放标识时, 释放所述第二网络设备对应的 SCG; 当所述指示消息携带释放标识时,根据所述释放标识释放小区、 SCG、 TAG 或者承载。
37、 如权利要求 36所述的设备, 其特征在于, 当所述指示消息携带释放标 识时, 所述释放单元具体用于:
当所述释放标识为小区的标识且所述小区为 SCG中的辅小区, 释放所述小 区;
当所述释放标识为小区的标识且所述小区为 SCG中的主小区、 或所述释放 标识为 SCG的标识、或当所述释放标识为所述 SCG包含的所有小区的标识,释 放所述 SCG;
当所述释放标识为 TAG的标识, 释放所述 TAG;
当所述释放标识为 TAG中的小区的标识, 释放所述 TAG中所述第二网络 设备控制的小区; 或
当所述释放标识为 SCG所服务的承载的标识,释放所述 SCG所服务的承载。
38、 一种无线链路失败的处理设备, 位于第二网络设备侧, 其特征在于, 包括:
检测单元, 用于检测用户设备与所述第二网络设备之间建立的无线链路是 否发生失败;
接口单元, 用于在检测单元检测到所述用户设备与所述第二网络设备之间 建立的无线链路发生失败时, 向第一网络设备传送第一消息, 所述第一消息用 于指示所述用户设备与所述第二网络设备之间建立的无线链路发生失败。
39、 如权利要求 38所述的设备, 其特征在于, 所述检测单元具体用于: 当检测到所述第二网络设备通过第一无线链路尝试接收所述用户设备发送 的随机接入请求的次数达到或超过尝试接收随机接入请求的最大次数时, 确定 所述用户设备与所述第二网络设备之间建立的无线链路发生失败, 其中所述第 一无线链路为所述用户设备与所述第二网络设备之间建立的任一无线链路; 或, 当检测到所述第二网络设备通过第一无线链路向所述用户设备发送物理下 行控制信道 PDCCH信息达到或超过 PDCCH最大重传次数时,确定所述用户设 备与所述第二网络设备之间建立的无线链路发生失败, 其中所述第一无线链路 为所述用户设备与所述第二网络设备之间建立的任一无线链路; 或, 当检测到所述第二网络设备通过第一无线承载重传无线链路控制 RLC下行 数据的次数达到或超过 RLC下行数据最大重传次数时, 确定所述用户设备与第 二网络设备之间建立的无线链路发生失败, 其中所述第一无线承载为所述第二 网络设备为所述用户设备服务的任一无线承载, 且承载在所述用户设备与所述 第二网络设备之间建立的一个或多个无线链路上; 或,
当检测到所述第二网络设备通过第一无线链路接收到的所述用户设备发送 的上行数据的误块率大于或等于预设误块率时, 确定所述用户设备与第二网络 设备之间建立的无线链路发生失败, 其中所述第一无线链路为所述用户设备与 所述第二网络设备之间建立的任一无线链路; 或,
当检测到所述第二网络设备通过第一无线链路接收到的所述用户设备发送 的上行数据的误码率大于或等于预设误码率时, 确定所述用户设备与第二网络 设备之间建立的无线链路发生失败, 其中所述第一无线链路为所述用户设备与 所述第二网络设备之间建立的任一无线链路。
40、 如权利要求 39所述的设备, 其特征在于, 所述接口单元还用于接收所 述第一网络设备发送的配置参数, 所述配置参数包括以下参数中的一个或多个: 所述尝试接收随机接入请求的最大次数、所述 PDCCH最大重传次数、所述 RLC下行数据最大重传次数、 所述预设误块率、 和所述预设误码率。
41、 如权利要求 38-40任一项所述的设备, 其特征在于, 所述第一消息携带 所述用户设备的标识, 以及链路失败相关标识, 且所述链路失败相关标识包括 以下标识中的一个或多个:
发生失败的无线链路对应的小区的标识、 发生失败的无线链路对应的小区 所属辅小区组 SCG 的标识、 发生失败的无线链路对应的小区所属时间提前组 TAG的标识和发生失败的无线链路对应的承载的标识。
42、 如权利要求 38-41任一项所述的设备, 其特征在于, 所述第一消息携带 链路失败原因。
43、 如权利要求 42所述的设备, 其特征在于, 所述链路失败原因包括: 随 机接入问题、 接收随机接入请求的次数达到或超过尝试接收随机接入请求的最 大次数、 PDCCH的重传次数达到或超过 PDCCH最大重传次数、 RLC下行数据 重传次数达到或超过 RLC下行数据最大重传次数、 上行数据的误块率达到或超 过预设误块率、 上行数据的误码率达到或超过预设误码率、 上行接收问题、 或 下行发送问题。
44、 如权利要求 38-43任一项所述的设备, 其特征在于, 所述接口单元还用 于接收所述第一网络设备发送的指示消息, 所述指示消息用于指示所述第二网 络设备释放为所述用户设备服务的资源; 且所述设备还包括:
释放单元, 用于根据所述指示消息, 释放为所述用户设备服务的资源。
45、 如权利要求 44所述的设备, 其特征在于, 所述释放单元具体用于: 当所述指示消息包括所述用户设备的标识时, 释放为所述用户设备服务的 资源; 或,
当所述指示消息包括所述用户设备的标识和小区的标识时, 释放为所述用 户设备服务的所述小区的资源; 或,
当所述指示消息包括所述用户设备的标识和 TAG的标识时, 释放为所述用 户设备服务的所述 TAG的资源; 或,
当所述指示消息包括所述用户设备的标识和所述 TAG 包含的小区的标识 时, 释放为所述用户设备服务的所述 TAG包含的所述第二网络设备控制的小区 的资源; 或,
当所述指示消息包括所述用户设备的标识和承载的标识时, 释放为所述用 户设备的所述承载服务的资源。
46、 一种无线链路失败的处理设备, 位于第一网络设备侧, 其特征在于, 包括:
收发单元, 用于与用户设备通信;
接口单元, 用于与第二网络设备通信;
获取单元, 用于通过所述收发单元或接口单元从所述用户设备或所述第二 网络设备获取第一消息, 所述第一消息为所述用户设备与所述第二网络设备之 间建立的无线链路发生失败时, 由所述用户设备或所述第二网络设备上报给所 述第一网络设备的;
确定单元, 用于根据所述第一消息确定所述用户设备与所述第二网络设备 之间建立的无线链路发生失败。
47、 如权利要求 46所述的设备, 其特征在于, 所述第一消息携带链路失败 相关标识, 且所述链路失败相关标识包括以下标识中的一个或多个:
发生失败的无线链路对应的小区的标识、 发生失败的无线链路对应的小区 所属辅小区组 SCG 的标识、 发生失败的无线链路对应的小区所属时间提前组 TAG的标识和发生失败的无线链路对应的承载的标识。
48、 如权利要求 47所述的设备, 其特征在于, 所述第一消息还携带所述用 户设备的标识。
49、 如权利要求 46-48任一项所述的设备, 其特征在于, 所述第一消息携带 链路失败原因。
50、 如权利要求 49所述的设备, 其特征在于, 所述链路失败原因包括: 随 机接入问题、 随机接入导频码的重传次数达到或超过 RLC上行数据最大重传次 数、 RLC上行数据重传次数达到或超过 RLC上行数据最大重传次数、 定时器超 时、 重配置失败、 接收随机接入请求的次数达到或超过尝试接收随机接入请求 的最大次数、 PDCCH的重传次数达到或超过 PDCCH最大重传次数、 RLC下行 数据重传次数达到或超过 RLC下行数据最大重传次数、 上行数据的误块率达到 或超过预设误块率、 上行数据的误码率达到或超过预设误码率、 上行接收问题、 或下行发送问题。
51、 如权利要求 46-50任一项所述的设备, 其特征在于, 所述确定单元在确 定所述用户设备与所述第二网络设备之间建立的无线链路发生失败之后, 还用 于:
触发所述收发单元向所述用户设备发送第二消息, 所述第二消息用于指示 所述用户设备释放小区、 辅小区组 SCG、 时间提前组 TAG或者承载; 和 /或, 触发所述接口单元向所述第二网络设备发送第三消息, 所述第三消息用于 指示所述第二网络设备释放为所述用户设备服务的资源。
52、 如权利要求 51所述的设备, 其特征在于, 所述确定单元具体还用于触 发所述收发单元向所述用户设备发送携带第一释放标识的第二消息, 其中: 在所述第一消息不携带链路失败相关标识时, 所述第一释放标识包括所述 发生失败的无线链路对应的小区所属 SCG的标识、所述 SCG包含的小区的标识、 所述 SCG包含的主小区的标识、 或者所述 SCG所服务的承载的标识; 或
在所述第一消息携带链路失败相关标识时, 所述第一释放标识是根据所述 链路失败相关标识确定的。
53、 如权利要求 52所述的设备, 其特征在于, 在所述第一消息携带链路失 败相关标识时,
当所述链路失败相关标识包括发生失败的无线链路对应的小区的标识, 所 述第一释放标识包括所述小区的标识; 或, 当所述链路失败相关标识包括发生失败的无线链路对应的小区所属 SCG的 标识, 所述第一释放标识包括所述 SCG的标识、 所述 SCG包含的小区的标识、 所述 SCG包含的主小区的标识或者所述 SCG所服务的承载的标识; 或,
当所述链路失败相关标识包括发生失败的无线链路对应的小区所属 TAG的 标识, 所述第一释放标识包括所述 TAG的标识或者所述 TAG包含的小区的标 识; 或,
当所述链路失败相关标识包括发生失败的无线链路对应的承载的标识, 所 述第一释放标识包括服务所述承载的 SCG的标识、所述 SCG包含的小区的标识、 所述 SCG包含的主小区的标识或者所述 SCG所服务的承载的标识。
54、 如权利要求 51所述的设备, 其特征在于, 所述确定单元具体还用于触 发所述接口单元向所述第二网络设备发送携带第二释放标识的第三消息, 其中: 当所述第一消息不携带链路失败相关标识时, 所述第二释放标识包括所述 用户设备的标识; 或,
当所述第一消息携带链路失败相关标识时, 所述第二释放标识是根据所述 链路失败相关标识确定的。
55、 如权利要求 54所述的设备, 其特征在于, 在所述第一消息携带链路失 败相关标识时,
当所述链路失败相关标识包括发生失败的无线链路对应的小区的标识, 所 述第二释放标识包括所述用户设备的标识和所述小区的标识; 或,
当所述链路失败相关标识包括发生失败的无线链路对应的小区所属 SCG的 标识, 所述第二释放标识包括所述用户设备的标识; 或,
当所述链路失败相关标识包括发生失败的无线链路对应的小区所属 TAG的 标识, 所述第二释放标识包括所述用户设备的标识和所述 TAG的标识, 或者包 括所述用户设备的标识和所述 TAG包含的小区的标识; 或,
当所述链路失败相关标识包括发生失败的无线链路对应的承载的标识, 所 述第二释放标识包括所述用户设备的标识, 或者包括所述用户设备的标识和服 务所述承载的 SCG所服务的承载的标识。
56、 如权利要求 46-55任一项所述的设备, 其特征在于, 所述收发单元具体 还用于:
向所述用户设备发送第一配置参数, 所述第一配置参数包括以下参数中的 一个或多个: 随机接入导频码最大重传次数、定时器时长、和无线链路控制 RLC 上行数据最大重传次数; 和 /或
向所述第二网络设备发送第二配置参数, 所述第二配置参数包括以下参数 中的一个或多个: 尝试接收随机接入请求的最大次数、 物理下行控制信道
PDCCH最大重传次数、 RLC下行数据最大重传次数、 预设误块率、 和预设误码 率。
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