WO2018170885A1 - 网络连接恢复方法及其装置、通信系统 - Google Patents

网络连接恢复方法及其装置、通信系统 Download PDF

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Publication number
WO2018170885A1
WO2018170885A1 PCT/CN2017/078090 CN2017078090W WO2018170885A1 WO 2018170885 A1 WO2018170885 A1 WO 2018170885A1 CN 2017078090 W CN2017078090 W CN 2017078090W WO 2018170885 A1 WO2018170885 A1 WO 2018170885A1
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WIPO (PCT)
Prior art keywords
network device
cell
radio link
network
user equipment
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PCT/CN2017/078090
Other languages
English (en)
French (fr)
Inventor
贾美艺
史玉龙
周华
Original Assignee
富士通株式会社
贾美艺
史玉龙
周华
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 富士通株式会社, 贾美艺, 史玉龙, 周华 filed Critical 富士通株式会社
Priority to JP2019551368A priority Critical patent/JP2020511842A/ja
Priority to CN201780088169.9A priority patent/CN110402592A/zh
Priority to PCT/CN2017/078090 priority patent/WO2018170885A1/zh
Publication of WO2018170885A1 publication Critical patent/WO2018170885A1/zh
Priority to US16/571,862 priority patent/US11252629B2/en
Priority to JP2021140915A priority patent/JP7310861B2/ja

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/305—Handover due to radio link failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • H04W36/00695—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink using split of the control plane or user plane

Definitions

  • the present invention relates to the field of communications, and in particular, to a network connection recovery method, a device thereof, and a communication system.
  • the triggering and reporting of radio link monitoring and radio link failure is a research hotspot in wireless communication systems.
  • the Radio Resource Control (RRC) layer announces that the radio link has failed.
  • the user equipment UE, User Equipment
  • UE User Equipment
  • the UE can send and receive data on the primary cell (PCell, Primary Cell) and multiple secondary cells (SCell, Secondary Cell), and physical layer problems occur on the primary cell.
  • the RRC layer announces that the invalid link fails when a random access problem occurs on the primary cell, or when any RLC PDU reaches the maximum number of retransmissions.
  • the UE initiates a connection re-establishment process and attempts to resume the RRC connection.
  • the UE can send and receive data through the primary base station (MeNB, Master eNB) and the secondary base station (SeNB, Secondary eNB), when the secondary base station has a physical layer problem, or the secondary base station has a random access problem. Or, the RLC PDU of the secondary base station reaches the maximum number of retransmissions, and the RRC layer announces that the secondary base station radio link fails.
  • the secondary base station fails to generate a radio link
  • the UE sends a secondary cell group failure report to the primary base station, and the primary base station can remove or replace the secondary base station based on the report.
  • the primary base station radio link fails, the UE initiates an RRC connection reestablishment procedure, attempting to resume the RRC connection.
  • an embodiment of the present invention provides a network connection recovery method, a device thereof, and a communication system, to quickly restore a connection with a network side in case of a radio link failure, and reduce data loss.
  • a network connection recovery method includes:
  • the user equipment reports the failure of the first network device and/or the first cell or automatically restores the first network device and/or the first cell if the first network device and/or the first cell fails to generate a radio link.
  • a network connection recovery method includes:
  • the second network device sends the radio link failure report or the first network device radio link failure message to the network side.
  • a network connection recovery method includes:
  • the first network device replaces the first cell with the first cell while maintaining the work of the second cell according to the first cell failure report, or according to the radio link failure report or the first network device radio link
  • the failure message is that the user equipment replaces the first network device and/or replaces the first cell with the user equipment.
  • a network connection recovery apparatus configured in a user equipment, where the apparatus includes:
  • a first processing unit that reports the failure of the first network device and/or the first cell or automatically restores the first network device and/or if the first network device and/or the first cell fails to generate a radio link First cell.
  • a network connection recovery apparatus configured in a second network.
  • the device wherein the device comprises:
  • a receiving unit which receives a radio link failure report sent by the user equipment by using a separate signaling radio bearer or a first network device radio link failure report sent by the secondary cell group signaling radio bearer;
  • a sending unit that sends the radio link failure report or the first network device radio link failure message to the network side.
  • a network connection recovery apparatus which is configured in a first network device, where the device includes:
  • a receiving unit which receives a first cell failure report sent by the user equipment or receives a radio link failure report sent by the second network device or a first network device radio link failure message;
  • a processing unit configured to replace the first cell with the first cell while maintaining the work of the second cell according to the first cell failure report, or according to the radio link failure report or the first network device radio link failure message Replacing the first network device with the user equipment and/or replacing the first cell with the user equipment.
  • a user equipment wherein the user equipment comprises the apparatus of the aforementioned fourth aspect.
  • a network device wherein the network device comprises the apparatus of the foregoing fifth or sixth aspect.
  • a communication system wherein the communication system comprises the user equipment of the aforementioned seventh aspect and the network device of the foregoing eighth aspect.
  • the beneficial effects of the embodiment of the present invention are: in the case that the first network device fails the radio link but the signaling radio bearer of the second network device is still available, or the physical layer problem or the random access problem occurs in the first cell If the second cell is still available, the UE reports the failure of the first network device or the first cell or automatically restores the first network device or the first cell, thereby enabling the first network device to be replaced or the first one to be replaced more quickly.
  • the cell restores the connection with the network side and reduces data loss.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a network connection recovery method according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic diagram of a network connection recovery method according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic diagram of a network connection recovery method according to Embodiment 3 of the present invention.
  • FIG. 5 is a schematic diagram of a network connection recovery method according to Embodiment 1-3 of the present invention.
  • FIG. 6 is a schematic diagram of a network connection recovery apparatus according to Embodiment 4 of the present invention.
  • Figure 7 is a schematic diagram of a network connection recovery apparatus according to Embodiment 5 of the present invention.
  • Figure 8 is a schematic diagram of a network connection recovery apparatus according to Embodiment 6 of the present invention.
  • FIG. 9 is a schematic structural diagram of a user equipment according to Embodiment 7 of the present invention.
  • FIG. 10 is a schematic diagram showing the structure of a network device according to Embodiment 8 of the present invention.
  • first the terms “first”, “second”, etc. are used to perform a region on a different element from a title. Points, but does not indicate the spatial arrangement or chronological order of these elements, etc. These elements should not be limited by these terms.
  • the term “and/or” includes any and all combinations of one or more of the associated listed terms.
  • the terms “comprising,” “comprising,” “having,” or “an” are used to perform a region on a different element from a title. Points, but does not indicate the spatial arrangement or chronological order of these elements, etc. These elements should not be limited by these terms.
  • the term “and/or” includes any and all combinations of one or more of the associated listed terms.
  • the term “communication network” or “wireless communication network” may refer to a network that conforms to any communication standard such as Long Term Evolution (LTE), Enhanced Long Term Evolution (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), and the like.
  • LTE Long Term Evolution
  • LTE-A Enhanced Long Term Evolution
  • WCDMA Wideband Code Division Multiple Access
  • HSPA High-Speed Packet Access
  • the communication between devices in the communication system may be performed according to any phase of the communication protocol, and may include, for example but not limited to, the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and future. 5G, New Radio (NR), etc., and/or other communication protocols currently known or to be developed in the future.
  • the term "network device” refers to, for example, a device in a communication system that accesses a terminal device to a communication network and provides a service for the terminal device.
  • the network device may include, but is not limited to, a device: a base station (BS, a base station), an access point (AP, an Access Point), a transmission and reception point (TRP), a broadcast transmitter, and a mobility management entity (MME, Mobile). Management Entity), gateway, server, Radio Network Controller (RNC), Base Station Controller (BSC), and so on.
  • BS base station
  • AP access point
  • TRP transmission and reception point
  • MME mobility management entity
  • Management Entity gateway
  • server Radio Network Controller
  • BSC Base Station Controller
  • the base station may include, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), and a 5G base station (gNB), and the like, and may further include a Remote Radio Head (RRH). , Remote Radio Unit (RRU), relay or low power node (eg femto, pico, etc.).
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • base station may include some or all of their functions, and each base station may provide communication coverage for a particular geographic area.
  • the term "cell” can refer to a base station and/or its coverage area, depending on the context in which the term is used.
  • the term "user equipment” (UE) or “Terminal Equipment” (TE) refers to, for example, a device that accesses a communication network through a network device and receives a network service.
  • the user equipment may be fixed or mobile, and may also be referred to as a mobile station (MS, Mobile Station), a terminal, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, and the like.
  • the user equipment may include, but is not limited to, a cellular phone (Cellular Phone), a personal digital assistant (PDA, Personal Digital Assistant), a wireless modem, a wireless communication device, a handheld device, a machine type communication device, a laptop computer, Cordless phones, smart phones, smart watches, digital cameras, and more.
  • a cellular phone Cellular Phone
  • PDA Personal Digital Assistant
  • wireless modem Wireless Fidelity
  • a wireless communication device a handheld device
  • a machine type communication device a laptop computer
  • Cordless phones smart phones, smart watches, digital cameras, and more.
  • the user equipment may also be a machine or device that performs monitoring or measurement, and may include, but is not limited to, a Machine Type Communication (MTC) terminal, In-vehicle communication terminal, device to device (D2D, Device to Device) terminal, machine to machine (M2M, Machine to Machine) terminal, and the like.
  • MTC Machine Type Communication
  • D2D Device to Device
  • M2M Machine to Machine
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention, schematically illustrating a case where a user equipment and a network device are taken as an example.
  • the communication system 100 may include a network device 101 and a user equipment 102 (for simplicity)
  • Figure 1 shows only one user equipment as an example.
  • an existing service or a service that can be implemented in the future can be performed between the network device 101 and the user equipment 102.
  • these services include, but are not limited to, enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and high reliability low latency communication (URLLC, Ultra-Reliable and Low- Latency Communication), and more.
  • eMBB enhanced mobile broadband
  • mMTC massive machine type communication
  • URLLC Ultra-Reliable and Low- Latency Communication
  • the user equipment 102 can transmit data to the network device 101, for example, using an unlicensed transmission method.
  • the network device 101 can receive data sent by one or more user devices 102 and feed back information (eg, acknowledgment (ACK)/non-acknowledgement (NACK)) information to the user device 102, and the user device 102 can confirm the end of the transmission process according to the feedback information, Or you can perform new data transmission or data retransmission.
  • ACK acknowledgment
  • NACK non-acknowledgement
  • the E-UTRAN Evolved Universal Mobile telecommunication system Terrestrial Radio Access Network
  • the NR dual connection can be configured for the UE a Secondary Cell Group (SCB) Signaling Radio Bearer (SRB) to allow direct transmission of a SN (Secondary Node) RRC message between the UE and the secondary base station; support for split (Split) SRB.
  • SCB Secondary Cell Group
  • SRB Signaling Radio Bearer
  • FIG. 2 is a schematic diagram of the method. As shown in FIG. 2, the method includes:
  • Step 201 In the case that the first network device and/or the first cell fails to generate a radio link, the user equipment (UE) reports information that the first network device and/or the first cell fails or automatically recovers the first network device and / or the first cell.
  • the user equipment UE
  • the first network device is, for example, a primary base station in a case where the UE is configured with dual connectivity
  • the second network device is, for example, a secondary base station in a case where the UE is configured with dual connectivity
  • the first cell is, for example, The UE configures the primary cell in the case of carrier aggregation
  • the second cell is, for example, a secondary cell in the case where the UE is configured with carrier aggregation, but this embodiment is not limited thereto.
  • the case where the first network device fails the radio link may include: when the user equipment is configured with the dual connection, the first network device fails the radio link but the signaling of the second network device is wireless.
  • the bearer is still available.
  • the UE is configured with dual connectivity, that is, the UE can send and receive data through the first network device and the second network device, and the first network device fails the radio link but the signaling radio bearer of the second network device
  • the UE can replace the first network device with a failure to report the failure of the first network device or restore the first network device, restore the connection with the network, and reduce data loss.
  • the case where the radio link fails in the first cell may include: when the user equipment is configured with the carrier aggregation, the first cell has a physical layer problem or a random access problem but the second cell is still available.
  • the UE is configured with carrier aggregation, that is, the UE can send and receive data on the first cell and the multiple second cells.
  • the UE can replace the first cell more quickly, restore the connection with the network side, and reduce data loss.
  • the network may replace the first network device and/or the first cell with the UE, so that the UE recovers with the network side. Connect to reduce data loss.
  • the UE may send a radio link failure report to the network side (for example, the first network device) via the second network device by using the Split SRB, and report the first network device to the first network device. Failure information.
  • the radio link failure report may be sent to the first network device by using the split SRB, and the first network device is reported to the first network device. Information about network device failure.
  • the radio link failure report may include the first cell group (MCG) failure information, and may also include the second cell group (SCG) failure information, but the embodiment is not limited thereto.
  • MCG first cell group
  • SCG second cell group
  • the UE may further add information that the first cell fails or the entire network device fails in the radio link failure report.
  • the radio link fails in the first cell
  • any RLC PDU reaches the maximum number of retransmissions
  • it means the entire network device. A radio link failure has occurred. Therefore, the network side can replace the first cell for the UE or replace the network device for the UE according to the information.
  • the UE may also send a first network device radio link failure report to the second network device by using the SCG SRB, where the second network device sends the first network.
  • the message that the device fails to be reported to the network side is reported in this manner.
  • the first network device radio link failure report may be sent to the second network device by the SCG SRB, and the second network device interprets the first A failure occurs in the wireless device of the network device, and the message that the wireless link of the first network device fails is sent to the first network device by using an interface between the second network device and the first network device.
  • the first network device radio link failure report may have the same content as the radio link failure report of the previous embodiment, but the embodiment is not limited thereto.
  • the UE when the UE is configured with the carrier aggregation, the UE may report the information of the first cell failure to the network side, and the network side may replace the UE according to the information of the first cell failure.
  • a cell maintains the work of the second cell at the same time.
  • the UE may report the failure information of the first cell by using physical layer signaling or medium access control (MAC), such as random access and scheduling request.
  • MAC medium access control
  • the information about the failure of the first cell may be reported to the network side by sending the first cell failure report to the network side, but the embodiment is not limited thereto.
  • the UE may send the first cell failure report to the network side by using the second cell, and the network side may maintain the work of the second cell.
  • the embodiment does not limit the sending manner and content of the first cell failure report, and the manner in which the network side replaces the first cell and maintains the work of the second cell is not limited in this embodiment.
  • the UE autonomously recovers the first network device and/or the first cell without passing through the network side, and can quickly resume the connection with the network side, thereby reducing data loss.
  • the UE can attempt RRC connection reestablishment while maintaining the work of the data radio bearer.
  • the UE can also restore the connection with the network side and reduce data loss.
  • the UE may determine whether the signaling radio bearer fails or the data radio bearer fails by determining whether the RLC PDU that reaches the maximum number of retransmissions is transmitted on the signaling radio bearer or the data radio bearer.
  • the examples are not intended to be limiting.
  • the manner in which the UE performs RRC connection reestablishment is not limited, and the manner in which the UE maintains the work of the data radio bearer is not limited.
  • the UE if the UE is configured with carrier aggregation, if the first cell of the UE fails and the second cell is available, that is, the radio link failure is caused by a physical layer problem or a random access problem, Then the UE can perform autonomous recovery of the first cell.
  • the UE may initiate random access to other cells belonging to the same network device as the first cell, requesting to replace the cell as the first cell of the UE, while maintaining the work of the second cell.
  • the UE may initiate a random access procedure to one of the other cells, requesting the cell as its first cell. Thereby, the autonomous recovery of the first cell is achieved.
  • the UE selects to initiate the random access procedure. For example, it may select the cell with the highest channel quality or the cell with the least interference to perform random access by channel measurement.
  • another cell that belongs to the same network device as the first cell may be the UE.
  • the second cell but this embodiment is not limited thereto.
  • the UE in the case that the UE is configured with dual connectivity, if the first network device of the UE fails and the second network device is available, the UE may perform autonomous recovery of the first network device.
  • the UE may initiate a signaling radio bearer recovery process on other cells of the first network device. And keep the work of data radio bearer and the work of the second network device. Thereby, the UE completes the autonomous recovery of the first network device.
  • the manner in which the UE initiates the signaling radio bearer recovery process is not limited, and the manner of maintaining the work of the data radio bearer and the operation of the second network device is not limited.
  • the UE may initiate replacement of the first cell on other cells of the first network device. process. Therefore, the UE completes the autonomous recovery of the first cell, and the first cell belongs to the first network device, which is equivalent to completing the autonomous recovery of the first network device.
  • This embodiment does not limit the manner in which the UE initiates the process of replacing the first cell.
  • the UE may also recover the second network device autonomously. As a result, it is also possible to quickly restore the connection with the network side and reduce data loss.
  • the UE may initiate signaling radio on other cells of the second network device. The recovery process is carried and the work of the data radio bearer and the operation of the first network device are maintained. Thereby, the UE completes the autonomous recovery of the second network device.
  • the manner in which the UE initiates the signaling radio bearer recovery process is not limited in this embodiment manner, and the manner of maintaining the work of the data radio bearer and the operation of the first network device is not limited.
  • the UE may initiate on other cells of the second network device. The process of replacing the first cell. Therefore, the UE completes the autonomous recovery of the first cell of the second network device, and the first cell belongs to the second network device, which is equivalent to completing the autonomous recovery of the second network device.
  • This embodiment does not limit the manner in which the UE initiates the process of replacing the first cell.
  • the wireless link fails in the first network device (for example, the primary base station) but the second When the signaling radio bearer of the network device (for example, the secondary base station) is still available, or the physical problem or random access problem occurs in the first cell (for example, the primary cell) but the second cell (for example, the secondary cell) is still available. If the user equipment reports the failure of the first network device and/or the first cell or automatically restores the first network device and/or the first cell, the cell or network device that fails the radio link can be replaced more quickly, and the device is restored. Reduce network loss by connecting to the network side.
  • the embodiment provides a network connection recovery method, and the method can be applied to the network side, for example, to a network device, where the method is the second network device side processing corresponding to the method of Embodiment 1, wherein The same content will not be repeated.
  • FIG. 3 is a schematic diagram of the method of this embodiment. As shown in FIG. 3, the method includes:
  • Step 301 The second network device receives a radio link failure report sent by the UE through the Split SRB or a first network device radio link failure report sent by the SCG SRB.
  • Step 302 The second network device sends the foregoing radio link failure report or the first network device radio link failure message to the network side.
  • the network side here is, for example, the foregoing first network device
  • the second network device may send the foregoing information to the first network device by using an interface between the second network device and the first network device.
  • the network side can replace the first network device with the UE according to the foregoing information, so that the UE can quickly resume the connection with the network side, thereby reducing data loss.
  • the present embodiment provides a network connection recovery method, which can be applied to the network side, for example, to a network device, which is a process corresponding to the first network device side of the methods of Embodiment 1 and Embodiment 2, where The same contents as in Example 1 and Embodiment 2 will not be repeatedly described.
  • the method includes:
  • Step 401 The first network device receives the first cell failure report sent by the UE or receives a radio link failure report or a first network device radio link failure message sent by the second network device.
  • Step 402 The second network device replaces the first cell according to the first cell failure report while maintaining the work of the second cell, or according to the foregoing radio link failure report or the first network device wireless
  • the link failure message is for the UE to replace the first network device and/or to replace the first cell for the UE.
  • the network side can replace the first network device and/or the first cell with the UE according to the information fed back by the UE or the first network device, so that the UE can quickly resume the connection with the network side, thereby reducing data loss.
  • Figure 5 is a process of the UE, the first network device, and the second network device corresponding to the method of Embodiment 1 - Embodiment 3, as shown in Figure 5, the process includes:
  • Step 501 The UE determines that the first network device and/or the first cell fails to generate a radio link.
  • the embodiment does not limit how the UE determines that the first network device and/or the first cell has failed to generate a radio link. For example, the UE may determine by monitoring the wireless link.
  • Step 502 The UE reports, to the first network device, information that the first network device and/or the first cell fails.
  • the UE may report the foregoing information to the first network device via the second network device. For example, if the UE is configured with dual connectivity, the UE may send the first network device through the second network device by using the Split SRB or the SCG SRB. The information about the failure of the first network device is reported; the UE may also report the information by itself. For example, if the UE is configured with the carrier aggregation, the UE may also report the failure of the first cell by using the second cell, as described in Embodiment 1. , will not repeat them here.
  • Step 503 The first network device replaces the first network device and/or the first cell for the UE.
  • Step 504 The UE autonomously recovers the first network device and/or the first cell.
  • step 504 if the SRB fails and the DRB fails, the UE may attempt RRC connection reestablishment while maintaining the operation of the DRB; if the UE is configured with carrier aggregation, the UE may initiate random access to other cells under the same network device, requesting The cell is replaced as the first cell, while maintaining the operation of the second cell, thereby completing the autonomous recovery of the first cell.
  • the UE may If the first cell of the first network device fails, the other cell of the first network device initiates a process of replacing the first cell, thereby performing autonomous recovery of the first cell of the first network device; if the UE is configured Dual connection, but no carrier aggregation is configured, the UE may initiate an SRB recovery process on other cells of the first network device, and maintain the operation of the DRB and the second network device, if the SRB fails and the DRB fails. Autonomous recovery of the first network device is performed.
  • steps 502-503 and step 504 are optional, that is, when the first network device and/or the first cell fails the radio link, the first step can be performed by steps 502-503.
  • the network device replaces the first network device and/or the first cell for the UE, and may also restore the first network device by the UE by step 504. / or the first cell, as described above, and will not be described here.
  • the embodiment provides a network connection recovery device, and the device can be configured on the user equipment.
  • the principle of the device is similar to that of the first embodiment. Therefore, the specific implementation may refer to the implementation of the method in the first embodiment. The description of the content is not repeated.
  • Figure 6 is a schematic diagram of the apparatus of the present embodiment. As shown in Figure 6, the apparatus 600 includes:
  • the first processing unit 601 when the first network device and/or the first cell fails to generate a radio link, reports information that the first network device and/or the first cell fails or automatically restores the first network device and/or Or the first cell.
  • the case where the first network device fails the radio link includes: when the user equipment is configured with the dual connection, the first network device fails the radio link but the signaling of the second network device is wireless. The bearer is still available.
  • the case where the radio link fails in the first cell includes: when the user equipment is configured with carrier aggregation, the first cell has a physical layer problem or a random access problem but the second cell is still available.
  • the first processing unit 601 includes a first reporting unit 6011, where the user equipment is configured with dual connectivity, through separate signaling radio bearers. (Split SRB) sends a radio link failure report to the network device network side via the second network device. Thereby, the information that the first network device fails is reported.
  • split SRB split SRB
  • the radio link failure report includes: first cell group failure information and/or second cell group failure information.
  • the radio link failure report includes: first cell failure information or network device failure information.
  • the first processing unit 601 includes a second reporting unit 6012, where the user equipment is configured with dual connectivity, and the secondary cell group signaling is wireless.
  • the bearer (SCG SRB) sends a first network device radio link failure report to the second network device, so that the second network device reports the first network device radio link failure message to the network side. Thereby, the information that the first network device fails is reported.
  • the first processing unit 601 includes a third report.
  • the unit 6013 when the user equipment is configured with the carrier aggregation, reports the first cell failure information to the network side, so that the network side replaces the first cell with the information of the first cell failure. Maintain the work of the second community.
  • the third reporting unit 6013 may send the first cell failure report to the network side, or may perform physical layer signaling or medium access control (MAC, Media Access Control) sub-layer signaling, such as random connection.
  • MAC Medium access control
  • the information about the failure of the first cell is reported to the network side, such as the ingress and the scheduling request, but the present embodiment is not limited thereto.
  • the first processing unit 601 includes a first restoring unit 6014, which performs RRC connection reestablishment if the signaling radio bearer fails but the data radio bearer fails. And keep the work of the data radio bearer. Thereby, the first network device and/or the first cell are autonomously restored.
  • the first processing unit 601 includes a second recovery unit 6015, where the user equipment is configured with carrier aggregation, to the first cell.
  • Other cells belonging to the same network device initiate random access, request to replace the cell as the first cell, and keep the second cell working. Thereby, the first cell is autonomously restored.
  • the first processing unit 601 includes a third recovery unit 6016, if the user equipment is configured with dual connectivity, if the first network device Carrier aggregation is not configured, and the signaling radio bearer fails and the data radio bearer fails, the signaling radio bearer recovery process is initiated on other cells of the first network device, and the data radio bearer is maintained and the second The work of network equipment. Thereby, the first network device is autonomously restored.
  • the first processing unit 601 includes a fourth recovery unit 6017, if the user equipment is configured with dual connectivity, if the first network device Carrier aggregation is configured, and the first cell of the first network device fails the radio link, and the process of replacing the first cell is initiated on other cells of the first network device. Thereby, the first network device is autonomously restored.
  • the apparatus 600 may further include:
  • the second processing unit 602 autonomously recovers the second network device if the user equipment is configured with a dual connection and the second network device fails the wireless link and the first network device does not fail the wireless link.
  • the second processing unit 602 includes a fifth recovery unit 6021,
  • the signaling radio bearer recovery process is initiated on other cells of the second network device. And maintaining the work of the data radio bearer and the operation of the first network device. Thereby, the second network device is autonomously restored.
  • the second processing unit 602 includes a sixth restoration unit 6022 that configures carrier aggregation in the second network device, and the first cell of the second network device In the case where a radio link failure occurs, a process of replacing the first cell is initiated on other cells of the second network device. Thereby, the second network device is autonomously restored.
  • the user equipment reports the failure of the first network device and/or the first cell or recovers the first network autonomously.
  • the device and/or the first cell can replace the cell or network device that fails the radio link more quickly, restore the connection with the network side, and reduce data loss.
  • the embodiment provides a network connection recovery device, and the device can be configured in a network device.
  • the principle of the device is similar to that of the second embodiment. Therefore, the specific implementation may refer to the implementation of the method in the second embodiment. The description of the content is not repeated.
  • FIG. 7 is a schematic diagram of the apparatus of this embodiment.
  • the apparatus 700 includes: a receiving unit 701 and a sending unit 702, where the receiving unit 701 is configured to receive a wireless chain sent by a user equipment through a separate signaling radio bearer. a first network device radio link failure report sent by the secondary cell group signaling radio bearer; the sending unit 702 is configured to send the radio link failure report or the first network device radio link failure message to Network side.
  • the network side can replace the first network device with the UE according to the foregoing information, so that the UE can quickly resume the connection with the network side, thereby reducing data loss.
  • the embodiment provides a network connection recovery device, which can be configured on a network device, because the device
  • the principle of solving the problem is similar to that of the third embodiment. Therefore, the specific implementation may refer to the implementation of the method of the third embodiment, and the description of the same portions is not repeated.
  • FIG. 8 is a schematic diagram of the apparatus of this embodiment.
  • the apparatus 800 includes: a receiving unit 801 and a processing unit 802, where the receiving unit 801 is configured to receive a first cell failure report sent by a user equipment or receive a second a radio link failure report sent by the network device or a first network device radio link failure message; the processing unit 802 is configured to replace the first cell with the first cell and maintain the work of the second cell according to the first cell failure report Or replacing the first network device with the user equipment and/or replacing the first cell with the user equipment according to the radio link failure report or the first network device radio link failure message.
  • the network side can replace the first network device and/or the first cell with the UE according to the information fed back by the UE or the first network device, so that the UE can quickly resume the connection with the network side, thereby reducing data loss.
  • This embodiment provides a user equipment, where the user equipment includes the network connection recovery apparatus as described in Embodiment 4.
  • FIG. 9 is a schematic diagram showing the structure of the user equipment 900 in this embodiment.
  • the user equipment 900 can include a processor 901 and a memory 901; the memory 902 is coupled to the processor 901.
  • the figure is exemplary; other types of structures may be used in addition to or in place of the structure to implement telecommunications functions or other functions.
  • the functionality of the network connection recovery device can be integrated into the processor 901.
  • the processor 901 may be configured to report the failure of the first network device and/or the first cell or automatically restore the first network if the first network device and/or the first cell fails to generate a radio link. Equipment and/or first cell.
  • the network connection recovery device may be configured separately from the processor 901.
  • the network connection recovery device may be configured as a chip connected to the processor 901, and the function of the network connection recovery device is implemented by the control of the processor 901. .
  • the user equipment 900 may further include: a communication module 903, an input unit 904, a display 905, and a power source 906. It should be noted that the user equipment 900 does not have to include all the components shown in FIG. 9; in addition, the user equipment 900 may further include components not shown in FIG. 9, and reference may be made to the prior art.
  • processor 901 also sometimes referred to as a controller or operational control, may include a microprocessor or other processor device and/or logic device that receives input and controls various components of user device 900. operating.
  • the memory 902 can be, for example, one or more of a buffer, a flash memory, a hard drive, a removable medium, a volatile memory, a non-volatile memory, or other suitable device.
  • Various data can be stored, and programs for executing related information can be stored.
  • the processor 901 can execute the program stored by the memory 902 to implement information storage or processing and the like.
  • the functions of other components are similar to those of the existing ones and will not be described here.
  • the various components of user device 900 may be implemented by dedicated hardware, firmware, software, or a combination thereof without departing from the scope of the embodiments.
  • the first network device for example, the primary base station
  • the signaling radio bearer of the second network device for example, the secondary base station
  • the first cell for example, if the primary cell has a physical layer problem or a random access problem but the second cell (for example, the secondary cell) is still available
  • the information of the failure of the first network device and/or the first cell is reported or the first network device is autonomously restored.
  • the first cell can quickly replace the cell or network device where the wireless link fails, restore the connection with the network side, and reduce data loss.
  • This embodiment provides a network device, where the network device includes the network connection recovery device as described in Embodiment 5 or Embodiment 6.
  • FIG. 10 is a schematic diagram showing the configuration of a network device of this embodiment.
  • network device 1000 can include a processor 1001 and a memory 1002; memory 1002 is coupled to processor 1001.
  • the memory 1002 can store various data; in addition, a program for information processing is stored, and the program is executed under the control of the processor 1001 to receive various information transmitted by the user equipment and to transmit the request information to the user equipment.
  • the functionality of the network connection recovery device described in Embodiment 5 or Embodiment 6 may be integrated into the processor 1001.
  • the processor 1001 may be configured to: receive a radio link failure report sent by the user equipment by using a separate signaling radio bearer or a first network device radio link failure report sent by the secondary cell group signaling radio bearer; The radio link failure report or the first network device radio link failure message is sent to the network side.
  • the processor 1001 may be configured to: receive a first cell failure report sent by the user equipment, or receive a radio link failure report or a first network device radio link failure message sent by the second network device;
  • a cell failure report is that the user equipment replaces the first cell while maintaining the work of the second cell, or replaces the first user equipment according to the radio link failure report or the first network device radio link failure message.
  • the network device and/or the first cell is replaced for the user equipment.
  • the network connection recovery device described in Embodiment 5 or Embodiment 6 may be configured separately from the processor 1001.
  • the network connection recovery device described in Embodiment 5 or Embodiment 6 may be configured and processed.
  • the chip connected to the device 1001 realizes the function of the network connection recovery device described in Embodiment 5 or Embodiment 6 by the control of the processor 1001.
  • the network device 1000 may further include: a transceiver 1003, an antenna 1004, and the like; wherein the functions of the foregoing components are similar to those of the prior art, and details are not described herein again. It should be noted that the network device 1000 does not necessarily have to include all the components shown in FIG. 10; in addition, the network device 1000 may further include components not shown in FIG. 10, and reference may be made to the prior art.
  • the first network device for example, the primary base station
  • the signaling radio bearer of the second network device for example, the secondary base station
  • the first cell for example, the primary cell
  • the second cell for example, the secondary cell
  • the embodiment of the present invention further provides a communication system, including the user equipment as described in Embodiment 7 and the network device as described in Embodiment 8.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a network connection recovery device or a user equipment, the program causes the network connection recovery device or user equipment to perform the method described in Embodiment 1 Network connection recovery method.
  • Embodiments of the present invention also provide a storage medium storing a computer readable program, wherein the computer The readable program causes the network connection recovery device or the user equipment to perform the network connection recovery method described in Embodiment 1.
  • the embodiment of the present invention further provides a computer readable program, wherein the program causes the network connection recovery device or the network device to perform Embodiment 2 or implement when the program is executed in a network connection recovery device or a network device
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the network connection recovery device or the network device to perform the network connection recovery method described in Embodiment 2 or Embodiment 3.
  • the above apparatus and method of the present invention may be implemented by hardware or by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.
  • the method/apparatus described in connection with the embodiments of the invention may be embodied directly in hardware, a software module executed by a processor, or a combination of both.
  • one or more of the functional block diagrams shown in Figures 6-8 and/or one or more combinations of functional block diagrams may correspond to various software modules of a computer program flow, or to individual hardware modules.
  • These software modules may correspond to the various steps shown in Figures 2-4, respectively.
  • These hardware modules can be implemented, for example, by curing these software modules using a Field Programmable Gate Array (FPGA).
  • FPGA Field Programmable Gate Array
  • the software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.
  • a storage medium can be coupled to the processor to enable the processor to read information from, and write information to, the storage medium; or the storage medium can be an integral part of the processor.
  • the processor and the storage medium can be located in an ASIC.
  • the software module can be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal.
  • the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.
  • One or more of the functional blocks described in the figures and/or one or more combinations of functional blocks may be implemented as a general purpose processor, digital signal processor (DSP) for performing the functions described herein.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • Functional side described with reference to the drawings One or more of the blocks and/or one or more combinations of functional blocks may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, and a communication with a DSP.
  • microprocessors or any other such configuration may be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, and a communication with a DSP.

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Abstract

一种网络连接恢复方法及其装置、通信系统。在主基站发生无线链路失败但辅基站的信令无线承载仍可用的情况下，或者在主小区发生物理层问题或随机接入问题但辅小区仍可用的情况下，通过用户设备上报主基站和/或主小区失败的信息或者自主恢复主基站和/或主小区，能够更快地更换发生无线链路失败的小区或基站，恢复与网络侧的连接，减少数据丢失。

Description

网络连接恢复方法及其装置、通信系统 技术领域
本发明涉及通信领域，特别涉及一种网络连接恢复方法及其装置、通信系统。
背景技术
无线链路监听和无线链路失败的触发和上报是无线通信系统中的研究热点。
在长期演进(LTE，Long Term Evolution)系统中，当发生物理层问题，或者发生随机接入问题，或者任何一个无线链路控制(RLC，Radio Link Control)层的协议数据单元(PDU，Protocol Data Unit)达到最大重传次数时，无线资源控制(RRC，Radio Resource Control)层宣告无线链路失败。当无线链路失败发生时，用户设备(UE，User Equipment)发起连接重建过程，尝试恢复RRC连接。
在UE配置了载波聚合(CA，Carrier Aggregation)的情况下，即UE可以在主小区(PCell，Primary Cell)和多个辅小区(SCell，Secondary Cell)上收发数据，当主小区上发生物理层问题，或者主小区上发生随机接入问题，或者任何一个RLC PDU达到最大重传次数时，RRC层宣告无效链路失败。当无线链路失败发生时，UE发起连接重建过程，尝试恢复RRC连接。
在UE配置了双连接的情况下，即UE可以通过主基站(MeNB，Master eNB)和辅基站(SeNB，Secondary eNB)收发数据，当辅基站发生物理层问题，或者辅基站发生随机接入问题，或者辅基站中任何一个RLC PDU达到最大重传次数，RRC层宣告辅基站无线链路失败。当辅基站发生无线链路失败时，UE向主基站发送辅小区组失败报告，主基站基于该报告可以移除或更换辅基站。此外，当发生主基站无线链路失败时，UE发起RRC连接重建过程，尝试恢复RRC连接。
应该注意，上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
发明人发现，在主基站发生无线链路失败但辅基站的信令无线承载仍然可用的情 况下，或者，在主小区发生物理层问题或随机接入问题但辅小区仍然可用的情况下，如果UE简单地发起连接重建过程，则无法快速地与网络侧恢复连接，增加了数据丢失。
为了解决上述问题，本发明实施例提供一种网络连接恢复方法及其装置、通信系统，以在无线链路失败的情况下快速地恢复与网络侧的连接，减少数据丢失。
根据本发明实施例的第一方面，提供了一种网络连接恢复方法，其中，所述方法包括：
用户设备在第一网络设备和/或第一小区发生无线链路失败的情况下，上报第一网络设备和/或第一小区失败的信息或者自主恢复第一网络设备和/或第一小区。
根据本发明实施例的第二方面，提供了一种网络连接恢复方法，其中，所述方法包括：
第二网络设备接收用户设备通过分离的信令无线承载发送的无线链路失败报告或通过辅小区组信令无线承载发送的第一网络设备无线链路失败报告；
所述第二网络设备将所述无线链路失败报告或者第一网络设备无线链路失败消息发送给网络侧。
根据本发明实施例的第三方面，提供了一种网络连接恢复方法，其中，所述方法包括：
第一网络设备接收用户设备发送的第一小区失败报告或者接收第二网络设备发送的无线链路失败报告或者第一网络设备无线链路失败消息；
所述第一网络设备根据所述第一小区失败报告为所述用户设备更换第一小区同时维持第二小区的工作，或者根据所述无线链路失败报告或者所述第一网络设备无线链路失败消息为所述用户设备更换第一网络设备和/或为所述用户设备更换第一小区。
根据本发明实施例的第四方面，提供了一种网络连接恢复装置，配置于用户设备，其中，所述装置包括：
第一处理单元，其在第一网络设备和/或第一小区发生无线链路失败的情况下，上报第一网络设备和/或第一小区失败的信息或者自主恢复第一网络设备和/或第一小区。
根据本发明实施例的第五方面，提供了一种网络连接恢复装置，配置于第二网络 设备，其中，所述装置包括：
接收单元，其接收用户设备通过分离的信令无线承载发送的无线链路失败报告或通过辅小区组信令无线承载发送的第一网络设备无线链路失败报告；
发送单元，其将所述无线链路失败报告或者第一网络设备无线链路失败消息发送给网络侧。
根据本发明实施例的第六方面，提供了一种网络连接恢复装置，配置于第一网络设备，其中，所述装置包括：
接收单元，其接收用户设备发送的第一小区失败报告或者接收第二网络设备发送的无线链路失败报告或者第一网络设备无线链路失败消息；
处理单元，其根据所述第一小区失败报告为所述用户设备更换第一小区同时维持第二小区的工作，或者根据所述无线链路失败报告或者所述第一网络设备无线链路失败消息为所述用户设备更换第一网络设备和/或为所述用户设备更换第一小区。
根据本发明实施例的第七方面，提供了一种用户设备，其中，所述用户设备包括前述第四方面所述的装置。
根据本发明实施例的第八方面，提供了一种网络设备，其中，所述网络设备包括前述第五方面或第六方面所述的装置。
根据本发明实施例的第九方面，提供了一种通信系统，其中，所述通信系统包括前述第七方面所述的用户设备和前述第八方面所述的网络设备。
本发明实施例的有益效果在于：在第一网络设备发生无线链路失败但第二网络设备的信令无线承载仍然可用的情况下，或者，在第一小区发生物理层问题或随机接入问题但第二小区仍然可用的情况下，UE上报第一网络设备或第一小区失败的信息或者自主恢复第一网络设备或第一小区，由此，能够更快地更换第一网络设备或第一小区，恢复与网络侧的连接，减少了数据丢失。
参照后文的说明和附图，详细公开了本发明的特定实施方式，指明了本发明的原理可以被采用的方式。应该理解，本发明的实施方式在范围上并不因而受到限制。在所附权利要求的条款的范围内，本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。
应该强调，术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在，但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在本发明实施例的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外，在附图中，类似的标号表示几个附图中对应的部件，并可用于指示多于一种实施方式中使用的对应部件。
所包括的附图用来提供对本发明实施例的进一步的理解，其构成了说明书的一部分，用于例示本发明的实施方式，并与文字描述一起来阐释本发明的原理。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性的前提下，还可以根据这些附图获得其他的附图。在附图中：
图1是本发明实施例的通信系统的示意图；
图2是本发明实施例1的网络连接恢复方法的示意图；
图3是本发明实施例2的网络连接恢复方法的示意图；
图4是本发明实施例3的网络连接恢复方法的示意图；
图5是本发明实施例1-3的网络连接恢复方法的示意图；
图6是本发明实施例4的网络连接恢复装置的示意图；
图7是本发明实施例5的网络连接恢复装置的示意图；
图8是本发明实施例6的网络连接恢复装置的示意图；
图9是本发明实施例7的用户设备的构成示意图；
图10是本发明实施例8的网络设备的构成示意图。
具体实施方式
参照附图，通过下面的说明书，本发明的前述以及其它特征将变得明显。在说明书和附图中，具体公开了本发明的特定实施方式，其表明了其中可以采用本发明的原则的部分实施方式，应了解的是，本发明不限于所描述的实施方式，相反，本发明包括落入所附权利要求的范围内的全部修改、变型以及等同物。下面结合附图对本发明的各种实施方式进行说明。这些实施方式只是示例性的，不是对本发明的限制。
在本发明实施例中，术语“第一”、“第二”等用于对不同元素从称谓上进行区 分，但并不表示这些元素的空间排列或时间顺序等，这些元素不应被这些术语所限制。术语“和/或”包括相关联列出的术语的一种或多个中的任何一个和所有组合。术语“包含”、“包括”、“具有”等是指所陈述的特征、元素、元件或组件的存在，但并不排除存在或添加一个或多个其他特征、元素、元件或组件。
在本发明实施例中，单数形式“一”、“该”等包括复数形式，应广义地理解为“一种”或“一类”而并不是限定为“一个”的含义；此外术语“所述”应理解为既包括单数形式也包括复数形式，除非上下文另外明确指出。此外术语“根据”应理解为“至少部分根据……”，术语“基于”应理解为“至少部分基于……”，除非上下文另外明确指出。
在本发明实施例中，术语“通信网络”或“无线通信网络”可以指符合如下任意通信标准的网络，例如长期演进(LTE，Long Term Evolution)、增强的长期演进(LTE-A，LTE-Advanced)、宽带码分多址接入(WCDMA，Wideband Code Division Multiple Access)、高速报文接入(HSPA，High-Speed Packet Access)等等。
并且，通信系统中设备之间的通信可以根据任意阶段的通信协议进行，例如可以包括但不限于如下通信协议：1G(generation)、2G、2.5G、2.75G、3G、4G、4.5G以及未来的5G、新无线(NR，New Radio)等等，和/或其他目前已知或未来将被开发的通信协议。
在本发明实施例中，术语“网络设备”例如是指通信系统中将终端设备接入通信网络并为该终端设备提供服务的设备。网络设备可以包括但不限于如下设备：基站(BS，Base Station)、接入点(AP、Access Point)、发送接收点(TRP，Transmission Reception Point)、广播发射机、移动管理实体(MME、Mobile Management Entity)、网关、服务器、无线网络控制器(RNC，Radio Network Controller)、基站控制器(BSC，Base Station Controller)等等。
其中，基站可以包括但不限于：节点B(NodeB或NB)、演进节点B(eNodeB或eNB)以及5G基站(gNB)，等等，此外还可包括远端无线头(RRH，Remote Radio Head)、远端无线单元(RRU，Remote Radio Unit)、中继(relay)或者低功率节点(例如femto、pico等等)。并且术语“基站”可以包括它们的一些或所有功能，每个基站可以对特定的地理区域提供通信覆盖。术语“小区”可以指的是基站和/或其覆盖区域，这取决于使用该术语的上下文。
在本发明实施例中，术语“用户设备”(UE，User Equipment)或者“终端设备”(TE，Terminal Equipment)例如是指通过网络设备接入通信网络并接收网络服务的设备。用户设备可以是固定的或移动的，并且也可以称为移动台(MS，Mobile Station)、终端、用户台(SS，Subscriber Station)、接入终端(AT，Access Terminal)、站，等等。
其中，用户设备可以包括但不限于如下设备：蜂窝电话(Cellular Phone)、个人数字助理(PDA，Personal Digital Assistant)、无线调制解调器、无线通信设备、手持设备、机器型通信设备、膝上型计算机、无绳电话、智能手机、智能手表、数字相机，等等。
再例如，在物联网(IoT，Internet of Things)等场景下，用户设备还可以是进行监控或测量的机器或装置，例如可以包括但不限于：机器类通信(MTC，Machine Type Communication)终端、车载通信终端、设备到设备(D2D，Device to Device)终端、机器到机器(M2M，Machine to Machine)终端，等等。
以下通过示例对本发明实施例的场景进行说明，但本发明不限于此。
图1是本发明实施例的通信系统的示意图，示意性说明了以用户设备和网络设备为例的情况，如图1所示，通信系统100可以包括网络设备101和用户设备102(为简单起见，图1仅以一个用户设备为例进行说明)。
在本发明实施例中，网络设备101和用户设备102之间可以进行现有的业务或者未来可实施的业务。例如，这些业务包括但不限于：增强的移动宽带(eMBB，enhanced Mobile Broadband)、大规模机器类型通信(mMTC，massive Machine Type Communication)和高可靠低时延通信(URLLC，Ultra-Reliable and Low-Latency Communication)，等等。
其中，用户设备102可以向网络设备101发送数据，例如使用免授权传输方式。网络设备101可以接收一个或多个用户设备102发送的数据，并向用户设备102反馈信息(例如确认(ACK)/非确认(NACK))信息，用户设备102根据反馈信息可以确认结束传输过程、或者还可以再进行新的数据传输，或者可以进行数据重传。
在新无线(NR，New Radio)系统的研究过程中，关于演进的通用移动通讯系统陆地无线接入网(E-UTRAN，Evolved Universal mobile telecommunication system Terrestrial Radio Access Network)与NR双连接，达成了以下一致：可以为UE配置 一个辅小区组(SCG，Secondary Cell Group)信令无线承载(SRB，Signaling Radio Bearer)，以允许UE与辅基站之间直接传递辅节点(SN，Secondary Node)RRC消息；支持分离的(Split)SRB。
以下结合附图对本发明实施例进行说明。
实施例1
本实施例提供了一种网络连接恢复方法，该方法可以应用于用户设备侧，例如应用于用户设备，图2是该方法的示意图，如图2所示，该方法包括：
步骤201：在第一网络设备和/或第一小区发生无线链路失败的情况下，用户设备(UE)上报第一网络设备和/或第一小区失败的信息或者自主恢复第一网络设备和/或第一小区。
在本实施例中，第一网络设备例如为在UE配置了双连接的情况下的主基站，第二网络设备例如为在UE配置了双连接的情况下的辅基站，第一小区例如为在UE配置了载波聚合的情况下的主小区，第二小区例如为在UE配置了载波聚合的情况下的辅小区，但本实施例并不以此作为限制。
在本实施例中，第一网络设备发生无线链路失败的情况可以包括：用户设备在配置了双连接的情况下，第一网络设备发生了无线链路失败但第二网络设备的信令无线承载仍可用。在本实施例中，UE配置了双连接，也即UE可以通过第一网络设备和第二网络设备收发数据，当第一网络设备发生了无线链路失败但第二网络设备的信令无线承载仍可用时，UE通过上报第一网络设备失败的信息或者自主恢复第一网络设备，可以更快地更换第一网络设备，恢复与网络侧的连接，减少数据丢失。
在本实施例中，第一小区发生无线链路失败的情况可以包括：用户设备在配置了载波聚合的情况下，第一小区发生物理层问题或随机接入问题但第二小区仍可用。在本实施例中，UE配置了载波聚合，也即UE可以在第一小区和多个第二小区上收发数据，当第一小区发生物理层问题或随机接入问题但第二小区仍可用时，UE通过上报第一小区失败的信息或者自主恢复第一小区，可以更快地更换第一小区，恢复与网络侧的连接，减少数据丢失。
在本实施例中，UE上报第一网络设备和/或第一小区失败的信息后，可以由网络侧为该UE更换第一网络设备和/或第一小区，以使UE恢复与网络侧的连接，减少数据丢失。
在一个实施方式中，在UE配置了双连接的情况下，该UE可以通过Split SRB经第二网络设备向网络侧(例如第一网络设备)发送无线链路失败报告，以上报第一网络设备失败的信息。
在本实施方式中，在UE支持Split SRB的情况下，其可以通过该Split SRB将无线链路失败报告通过第二网络设备发送给第一网络设备，以向该第一网络设备上报该第一网络设备失败的信息。
在本实施方式中，该无线链路失败报告可以包括第一小区组(MCG)失败信息，也可以包括第二小区组(SCG)失败信息，但本实施例并不以此作为限制。由此，网络侧可以根据该信息为UE更换MCG和/或SCG。
在本实施方式中，如果UE同时配置了载波聚合，则该UE还可以在该无线链路失败报告中添加第一小区失败或者整个网络设备失败的信息。在本实施方式中，当物理层问题或者随机接入问题发生的情况下，意味着第一小区发生了无线链路失败，当任意RLC PDU达到最大重传次数的情况下，意味着整个网络设备发生了无线链路失败。由此，网络侧可以根据该信息为UE更换第一小区或者为UE更换网络设备。
在另一个实施方式中，在UE配置了双连接的情况下，该UE还可以通过SCG SRB向第二网络设备发送第一网络设备无线链路失败报告，由该第二网络设备将第一网络设备无线链路失败的消息上报给网络侧(例如第一网络设备)，通过这种方式来上报第一网络设备失败的信息。
在本实施方式中，在UE配置了SCG SRB的情况下，其可以通过该SCG SRB将第一网络设备无线链路失败报告发送给第二网络设备，由该第二网络设备解读出该第一网络设备发生了无线链路失败的情况，并将第一网络设备无线链路失败的消息通过该第二网络设备与该第一网络设备之间的接口发送给该第一网络设备。
在本实施方式中，该第一网络设备无线链路失败报告可以具有与前一实施方式的无线链路失败报告相同的内容，但本实施例并不以此作为限制。
在另一个实施方式中，在UE配置了载波聚合的情况下，该UE可以向网络侧报告第一小区失败的信息，由此，网络侧可以根据该第一小区失败的信息为该UE更换第一小区同时维持第二小区的工作。
在本实施方式中，UE可以通过物理层信令或者介质访问控制(MAC，Media Access Control)子层信令，如随机接入、调度请求等上报该第一小区失败的信息， 也可以通过向网络侧发送该第一小区失败报告，来向网络侧报告该第一小区失败的信息，但本实施方式并不以此作为限制。
在本实施方式中，由于该UE的第二小区仍然可用，则该UE可以通过该第二小区向网络侧发送上述第一小区失败报告，而网络侧可以维持该第二小区的工作。本实施例对于该第一小区失败报告的发送方式以及内容不作限制，并且本实施例对于该网络侧更换第一小区以及维持第二小区的工作的方式也不作限制。
在本实施例中，UE自主恢复第一网络设备和/或第一小区，而不通过网络侧，也可以快速与网络侧恢复连接，减少数据丢失。
在一个实施方式中，仅信令无线承载失败而数据无线承载没有失败，也就是说，达到最大重传次数的RLC PDU是在信令无线承载上传递的，没有任何数据无线承载上的RLC PDU达到最大重传次数，则UE可以尝试RRC连接重建，同时保持该数据无线承载的工作。由此，通过自主恢复，UE也可以恢复与网络侧的连接，减少数据丢失。
在本实施方式中，UE可以通过判断达到最大重传次数的RLC PDU是在信令无线承载上传递还是在数据无线承载传递的，来确定是信令无线承载失败还是数据无线承载失败，但本实施例并不以此作为限制。
在本实施方式中，对于该UE进行RRC连接重建的方式不作限制，并且对于该UE保持该数据无线承载的工作的方式也不作限制。
在另一个实施方式中，在UE配置了载波聚合的情况下，如果UE的第一小区失败而第二小区可用，也即，无线链路失败是因为物理层问题或者随机接入问题造成的，则该UE可以进行第一小区的自主恢复。
例如，该UE可以向与第一小区属于同一网络设备的其他小区发起随机接入，请求更换该小区作为该UE的第一小区，同时保持第二小区的工作。
在本实施方式中，由于与第一小区属于同一个网络设备的其他小区也是可用的，则UE可以向该其他小区中的一个发起随机接入过程，请求将该小区作为其第一小区。由此实现了第一小区的自主恢复。
在本实施方式中，对于该UE选择哪个小区发起随机接入过程不作限制，例如其可以通过信道测量选择信道质量最高的小区或者干扰最小的小区进行随机接入等。
在本实施方式中，与第一小区属于同一个网络设备的其他小区有可能是该UE的 第二小区，但本实施例并不以此作为限制。
在另一个实施方式中，在UE配置了双连接的情况下，如果UE的第一网络设备失败而第二网络设备可用，则该UE可以进行第一网络设备的自主恢复。
例如，如果该第一网络设备没有配置载波聚合，并且信令无线承载发生了失败而数据无线承载没有发生失败，则该UE可以在第一网络设备的其他小区上发起信令无线承载恢复过程，并保持数据无线承载的工作以及第二网络设备的工作。由此，该UE完成了第一网络设备的自主恢复。
本实施例对UE发起信令无线承载恢复过程的方式不作限制，对保持数据无线承载的工作以及第二网络设备的工作的方式也不作限制。
再例如，如果该第一网络设备配置了载波聚合，而该第一网络设备的第一小区发生了无线链路失败，则该UE可以在第一网络设备的其他小区上发起更换第一小区的过程。由此，该UE完成了第一小区的自主恢复，由于第一小区属于第一网络设备，相当于完成了第一网络设备的自主恢复。
本实施例对UE发起更换第一小区的过程的方式不作限制。
在本实施例中，在用户设备配置了双连接，并且第二网络设备发生无线链路失败而第一网络设备没有发生无线链路失败的情况下，该UE还可以自主恢复第二网络设备，由此，也可以快速恢复与网络侧的连接，减少数据丢失。
在一个实施方式中，如果该第二网络设备没有配置载波聚合，并且信令无线承载发生失败而数据无线承载没有发生失败，则该UE可以在该第二网络设备的其他小区上发起信令无线承载的恢复过程，并保持该数据无线承载的工作以及第一网络设备的工作。由此，该UE完成了第二网络设备的自主恢复。
本实施方式对UE发起信令无线承载恢复过程的方式不作限制，对保持数据无线承载的工作以及第一网络设备的工作的方式也不作限制。
在另一个实施方式中，如果该第二网络设备配置了载波聚合，并且该第二网络设备的第一小区发生了无线链路失败，则该UE可以在该第二网络设备的其他小区上发起更换第一小区的过程。由此，该UE完成了第二网络设备的第一小区的自主恢复，由于该第一小区属于该第二网络设备，相当于完成了第二网络设备的自主恢复。
本实施方式对UE发起更换第一小区的过程的方式不作限制。
通过本实施例的方法，在第一网络设备(例如主基站)发生无线链路失败但第二 网络设备(例如辅基站)的信令无线承载仍可用的情况下，或者在第一小区(例如主小区)发生物理层问题或随机接入问题但第二小区(例如辅小区)仍可用的情况下，通过用户设备上报第一网络设备和/或第一小区失败的信息或者自主恢复第一网络设备和/或第一小区，能够更快地更换发生无线链路失败的小区或网络设备，恢复与网络侧的连接，减少数据丢失。
实施例2
本实施例提供了一种网络连接恢复方法，该方法可以应用于网络侧，例如应用于网络设备，该方法是与实施例1的方法对应的第二网络设备侧的处理，其中与实施例1相同的内容不再重复说明。
图3是本实施例的方法的示意图，如图3所示，该方法包括：
步骤301：第二网络设备接收UE通过Split SRB发送的无线链路失败报告或通过SCG SRB发送的第一网络设备无线链路失败报告；
步骤302：该第二网络设备将上述无线链路失败报告或者第一网络设备无线链路失败消息发送给网络侧。
在本实施例中，这里的网络侧例如前述的第一网络设备，该第二网络设备可以通过第二网络设备与第一网络设备之间的接口向第一网络设备发送上述信息。
通过本实施例的方法，网络侧可以根据上述信息为UE更换第一网络设备，使UE快速与网络侧恢复连接，减少了数据丢失。
实施例3
本实施例提供了一种网络连接恢复方法，该方法可以应用于网络侧，例如应用于网络设备，其是对应实施例1和实施例2的方法的第一网络设备侧的处理，其中与实施例1和实施例2相同的内容不再重复说明。
图4是本实施例的方法的示意图，如图4所示，该方法包括：
步骤401：第一网络设备接收UE发送的第一小区失败报告或者接收第二网络设备发送的无线链路失败报告或者第一网络设备无线链路失败消息；
步骤402：该第二网络设备根据所述第一小区失败报告为该UE更换第一小区同时维持第二小区的工作，或者根据上述无线链路失败报告或者上述第一网络设备无线 链路失败消息为该UE更换第一网络设备和/或为该UE更换第一小区。
通过本实施例的方法，网络侧可以根据UE或第一网络设备反馈的信息为UE更换第一网络设备和/或第一小区，使UE快速与网络侧恢复连接，减少了数据丢失。
图5是对应实施例1-实施例3的方法的UE、第一网络设备和第二网络设备的处理，如图5所示，该处理过程包括：
步骤501：UE确定第一网络设备和/或第一小区发生无线链路失败；
在步骤501中，本实施例对于UE如何确定第一网络设备和/或第一小区发生了无线链路失败不作限制，例如，该UE可以通过监听无线链路的方式来确定。
步骤502：UE向第一网络设备上报第一网络设备和/或第一小区失败的信息；
在步骤502中，UE可以经由第二网络设备向第一网络设备上报上述信息，例如在UE配置了双连接的情况下，UE可以通过Split SRB或者SCG SRB经由第二网络设备向第一网络设备上报第一网络设备失败的信息；UE也可以自己上报上述信息，例如在UE配置了载波聚合的情况下，UE也可以通过第二小区上报第一小区失败的信息，具体如实施例1所述，此处不再赘述。
步骤503：第一网络设备为UE更换第一网络设备和/或第一小区。
步骤504：UE自主恢复第一网络设备和/或第一小区。
在步骤504中，如果SRB失败而DRB没有失败，则UE可以尝试RRC连接重建同时保持DRB的工作；如果UE配置了载波聚合，则UE可以向同一网络设备下的其他小区发起随机接入，请求更换该小区作为其第一小区，同时保持其第二小区的工作，由此完成了第一小区的自主恢复；如果UE配置了双连接，则在UE同时配置了载波聚合的情况下，UE可以在第一网络设备的第一小区失败的情况下，在该第一网络设备的其他小区发起更换第一小区的过程，以此进行第一网络设备的第一小区的自主恢复；如果UE配置了双连接，但没有配置载波聚合，则UE可以在SRB失败而DRB没有失败的情况下，在第一网络设备的其他小区上发起SRB恢复过程，并保持DRB和第二网络设备的工作，由此进行第一网络设备的自主恢复。
在图5的说明中，步骤502-503与步骤504是择一的，也即，当第一网络设备和/或第一小区发生了无线链路失败时，可以通过步骤502-503由第一网络设备为UE更换第一网络设备和/或第一小区，也可以通过步骤504由UE自主恢复第一网络设备和 /或第一小区，具体如前所述，此处不再赘述。
实施例4
本实施例提供了一种网络连接恢复装置，该装置可以配置于用户设备，由于该装置解决问题的原理与实施例1的方法类似，因此其具体的实施可以参考实施例1的方法的实施，内容相同之处不再重复说明。
图6是本实施例的装置的示意图，如图6所示，该装置600包括：
第一处理单元601，其在第一网络设备和/或第一小区发生无线链路失败的情况下，上报第一网络设备和/或第一小区失败的信息或者自主恢复第一网络设备和/或第一小区。
在本实施例中，第一网络设备发生无线链路失败的情况包括：在所述用户设备配置了双连接的情况下，第一网络设备发生无线链路失败但第二网络设备的信令无线承载仍可用。
在该实施例中，第一小区发生无线链路失败的情况包括：在所述用户设备配置了载波聚合的情况下，第一小区发生物理层问题或随机接入问题但第二小区仍可用。
在本实施例的一个实施方式中，如图6所示，该第一处理单元601包括第一上报单元6011，其在所述用户设备配置了双连接的情况下，通过分离的信令无线承载(Split SRB)经第二网络设备向网络设备网络侧发送无线链路失败报告。由此，上报第一网络设备失败的信息。
在本实施方式中，无线链路失败报告包括：第一小区组失败信息和/或第二小区组失败信息。
在本实施方式中，在所述用户设备配置了载波聚合的情况下，所述无线链路失败报告包括：第一小区失败信息或者网络设备失败信息。
在本实施例的一个实施方式中，如图6所示，该第一处理单元601包括第二上报单元6012，其在所述用户设备配置了双连接的情况下，通过辅小区组信令无线承载(SCG SRB)向第二网络设备发送第一网络设备无线链路失败报告，以便所述第二网络设备将第一网络设备无线链路失败的消息上报给网络侧。由此，上报第一网络设备失败的信息。
在本实施例的一个实施方式中，如图6所示，该第一处理单元601包括第三上报 单元6013，其在所述用户设备配置了载波聚合的情况下，向网络侧报告第一小区失败的信息，以便网络侧根据所述第一小区失败的信息为所述用户设备更换第一小区同时维持第二小区的工作。
在本实施方式中，该第三上报单元6013可以向网络侧发送该第一小区失败报告，也可以通过物理层信令或者介质访问控制(MAC，Media Access Control)子层信令，如随机接入、调度请求等，向网络侧上报该第一小区失败的信息，但本实施方式并不以此作为限制。
在本实施例的一个实施方式中，如图6所示，该第一处理单元601包括第一恢复单元6014，其在信令无线承载失败但是数据无线承载没有失败的情况下，进行RRC连接重建并保持所述数据无线承载的工作。由此，自主恢复第一网络设备和/或第一小区。
在本实施例的一个实施方式中，如图6所示，该第一处理单元601包括第二恢复单元6015，其在所述用户设备配置了载波聚合的情况下，向与所述第一小区属于同一网络设备的其他小区发起随机接入，请求更换该小区作为第一小区，同时保持第二小区工作。由此，自主恢复第一小区。
在本实施例的一个实施方式中，如图6所示，该第一处理单元601包括第三恢复单元6016，其在所述用户设备配置了双连接的情况下，如果所述第一网络设备没有配置载波聚合，并且信令无线承载发生失败而数据无线承载没有发生失败，在第一网络设备的其他小区上发起信令无线承载的恢复过程，并保持所述数据无线承载的工作以及第二网络设备的工作。由此，自主恢复第一网络设备。
在本实施例的一个实施方式中，如图6所示，该第一处理单元601包括第四恢复单元6017，其在所述用户设备配置了双连接的情况下，如果所述第一网络设备配置了载波聚合，并且所述第一网络设备的第一小区发生了无线链路失败，在第一网络设备的其他小区上发起更换第一小区的过程。由此，自主恢复第一网络设备。
在本实施例中，如图6所示，该装置600还可以包括：
第二处理单元602，其在所述用户设备配置了双连接，并且第二网络设备发生无线链路失败而第一网络设备没有发生无线链路失败的情况下，自主恢复第二网络设备。
在一个实施方式中，如图6所示，该第二处理单元602包括第五恢复单元6021， 其在所述第二网络设备没有配置载波聚合，并且信令无线承载发生失败而数据无线承载没有发生失败的情况下，在所述第二网络设备的其他小区上发起信令无线承载的恢复过程，并保持所述数据无线承载的工作以及第一网络设备的工作。由此，自主恢复第二网络设备。
在另一个实施方式中，如图6所示，该第二处理单元602包括第六恢复单元6022，其在所述第二网络设备配置了载波聚合，并且所述第二网络设备的第一小区发生了无线链路失败的情况下，在所述第二网络设备的其他小区上发起更换第一小区的过程。由此，自主恢复第二网络设备。
通过本实施例的装置，在第一网络设备(例如主基站)发生无线链路失败但第二网络设备(例如辅基站)的信令无线承载仍可用的情况下，或者在第一小区(例如主小区)发生物理层问题或随机接入问题但第二小区(例如辅小区)仍可用的情况下，通过用户设备上报第一网络设备和/或第一小区失败的信息或者自主恢复第一网络设备和/或第一小区，能够更快地更换发生无线链路失败的小区或网络设备，恢复与网络侧的连接，减少数据丢失。
实施例5
本实施例提供了一种网络连接恢复装置，该装置可以配置于网络设备，由于该装置解决问题的原理与实施例2的方法类似，因此其具体的实施可以参考实施例2的方法的实施，内容相同之处不再重复说明。
图7是本实施例的装置的示意图，如图7所述，该装置700包括：接收单元701和发送单元702，该接收单元701用于接收用户设备通过分离的信令无线承载发送的无线链路失败报告或通过辅小区组信令无线承载发送的第一网络设备无线链路失败报告；该发送单元702用于将所述无线链路失败报告或者第一网络设备无线链路失败消息发送给网络侧。
通过本实施例的装置，网络侧可以根据上述信息为UE更换第一网络设备，使UE快速与网络侧恢复连接，减少了数据丢失。
实施例6
本实施例提供了一种网络连接恢复装置，该装置可以配置于网络设备，由于该装 置解决问题的原理与实施例3的方法类似，因此其具体的实施可以参考实施例3的方法的实施，内容相同之处不再重复说明。
图8是本实施例的装置的示意图，如图8所示，该装置800包括：接收单元801和处理单元802，该接收单元801用于接收用户设备发送的第一小区失败报告或者接收第二网络设备发送的无线链路失败报告或者第一网络设备无线链路失败消息；该处理单元802用于根据所述第一小区失败报告为所述用户设备更换第一小区同时维持第二小区的工作，或者根据所述无线链路失败报告或者所述第一网络设备无线链路失败消息为所述用户设备更换第一网络设备和/或为所述用户设备更换第一小区。
通过本实施例的装置，网络侧可以根据UE或第一网络设备反馈的信息为UE更换第一网络设备和/或第一小区，使UE快速与网络侧恢复连接，减少了数据丢失。
实施例7
本实施例提供了一种用户设备，该用户设备包括如实施例4所述的网络连接恢复装置。
图9是本实施例的用户设备900的构成示意图。如图9所示，该用户设备900可以包括处理器901和存储器901；存储器902耦合到处理器901。值得注意的是，该图是示例性的；还可以使用其他类型的结构，来补充或代替该结构，以实现电信功能或其他功能。
在一个实施方式中，网络连接恢复装置的功能可以被集成到处理器901中。其中，处理器901可以被配置为：在第一网络设备和/或第一小区发生无线链路失败的情况下，上报第一网络设备和/或第一小区失败的信息或者自主恢复第一网络设备和/或第一小区。
在另一个实施方式中，网络连接恢复装置可以与处理器901分开配置，例如可以将网络连接恢复装置配置为与处理器901连接的芯片，通过处理器901的控制来实现网络连接恢复装置的功能。
如图9所示，该用户设备900还可以包括：通信模块903、输入单元904、显示器905、电源906。值得注意的是，用户设备900也并不是必须要包括图9中所示的所有部件；此外，用户设备900还可以包括图9中没有示出的部件，可以参考现有技术。
如图9所示，处理器901有时也称为控制器或操作控件，可以包括微处理器或其他处理器装置和/或逻辑装置，该处理器901接收输入并控制用户设备900的各个部件的操作。
其中，存储器902，例如可以是缓存器、闪存、硬驱、可移动介质、易失性存储器、非易失性存储器或其它合适装置中的一种或更多种。可储存各种数据，此外还可存储执行有关信息的程序。并且处理器901可执行该存储器902存储的该程序，以实现信息存储或处理等。其他部件的功能与现有类似，此处不再赘述。用户设备900的各部件可以通过专用硬件、固件、软件或其结合来实现，而不偏离本实施例的范围。
通过本实施例的用户设备，在第一网络设备(例如主基站)发生无线链路失败但第二网络设备(例如辅基站)的信令无线承载仍可用的情况下，或者在第一小区(例如主小区)发生物理层问题或随机接入问题但第二小区(例如辅小区)仍可用的情况下，上报第一网络设备和/或第一小区失败的信息或者自主恢复第一网络设备和/或第一小区，能够更快地更换发生无线链路失败的小区或网络设备，恢复与网络侧的连接，减少数据丢失。
实施例8
本实施例提供了一种网络设备，该网络设备包括如实施例5或实施例6所述的网络连接恢复装置。
图10是本实施例的网络设备的构成示意图。如图10所示，网络设备1000可以包括：处理器(processor)1001和存储器1002；存储器1002耦合到处理器1001。其中该存储器1002可存储各种数据；此外还存储信息处理的程序，并且在处理器1001的控制下执行该程序，以接收用户设备发送的各种信息、并且向用户设备发送请求信息。
在一个实施方式中，实施例5或实施例6所述的网络连接恢复装置的功能可以被集成到处理器1001中。
例如，处理器1001可以被配置为：接收用户设备通过分离的信令无线承载发送的无线链路失败报告或通过辅小区组信令无线承载发送的第一网络设备无线链路失败报告；将所述无线链路失败报告或者第一网络设备无线链路失败消息发送给网络侧。
再例如，处理器1001也可以被配置为：接收用户设备发送的第一小区失败报告或者接收第二网络设备发送的无线链路失败报告或者第一网络设备无线链路失败消息；根据所述第一小区失败报告为所述用户设备更换第一小区同时维持第二小区的工作，或者根据所述无线链路失败报告或者所述第一网络设备无线链路失败消息为所述用户设备更换第一网络设备和/或为所述用户设备更换第一小区。
在另一个实施方式中，实施例5或实施例6所述的网络连接恢复装置可以与处理器1001分开配置，例如可以将实施例5或实施例6所述的网络连接恢复装置配置为与处理器1001连接的芯片，通过处理器1001的控制来实现实施例5或实施例6所述的网络连接恢复装置的功能。
此外，如图10所示，网络设备1000还可以包括：收发机1003和天线1004等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，网络设备1000也并不是必须要包括图10中所示的所有部件；此外，网络设备1000还可以包括图10中没有示出的部件，可以参考现有技术。
通过本实施例的网络设备，可以在第一网络设备(例如主基站)发生无线链路失败但第二网络设备(例如辅基站)的信令无线承载仍可用的情况下，或者在第一小区(例如主小区)发生物理层问题或随机接入问题但第二小区(例如辅小区)仍可用的情况下，为UE更换第一网络设备和/或第一小区，使UE能够恢复与网络侧的连接，减少数据丢失。
实施例9
本发明实施例还提供一种通信系统，包括如实施例7所述的用户设备以及如实施例8所述的网络设备。
由于在实施例7和实施例8中，已经对该用户设备和该网络设备做了详细说明，其内容被合并于此，此处不再赘述。
本发明实施例还提供了一种计算机可读程序，其中当在网络连接恢复装置或用户设备中执行所述程序时，所述程序使得所述网络连接恢复装置或用户设备执行实施例1所述的网络连接恢复方法。
本发明实施例还提供了一种存储有计算机可读程序的存储介质，其中所述计算机 可读程序使得网络连接恢复装置或用户设备执行实施例1所述的网络连接恢复方法。
本发明实施例还提供了一种计算机可读程序，其中当在网络连接恢复装置或网络设备中执行所述程序时，所述程序使得所述网络连接恢复装置或网络设备执行实施例2或实施例3所述的网络连接恢复方法。
本发明实施例还提供了一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得网络连接恢复装置或网络设备执行实施例2或实施例3所述的网络连接恢复方法。
本发明以上的装置和方法可以由硬件实现，也可以由硬件结合软件实现。本发明涉及这样的计算机可读程序，当该程序被逻辑部件所执行时，能够使该逻辑部件实现上文所述的装置或构成部件，或使该逻辑部件实现上文所述的各种方法或步骤。本发明还涉及用于存储以上程序的存储介质，如硬盘、磁盘、光盘、DVD、flash存储器等。
结合本发明实施例描述的方法/装置可直接体现为硬件、由处理器执行的软件模块或二者组合。例如，图6-8中所示的功能框图中的一个或多个和/或功能框图的一个或多个组合，既可以对应于计算机程序流程的各个软件模块，亦可以对应于各个硬件模块。这些软件模块，可以分别对应于图2-4所示的各个步骤。这些硬件模块例如可利用现场可编程门阵列(FPGA)将这些软件模块固化而实现。
软件模块可以位于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动磁盘、CD-ROM或者本领域已知的任何其它形式的存储介质。可以将一种存储介质耦接至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息；或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。该软件模块可以存储在移动终端的存储器中，也可以存储在可插入移动终端的存储卡中。例如，若设备(如移动终端)采用的是较大容量的MEGA-SIM卡或者大容量的闪存装置，则该软件模块可存储在该MEGA-SIM卡或者大容量的闪存装置中。
针对附图中描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，可以实现为用于执行本发明所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图描述的功能方 框中的一个或多个和/或功能方框的一个或多个组合，还可以实现为计算设备的组合，例如，DSP和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本发明进行了描述，但本领域技术人员应该清楚，这些描述都是示例性的，并不是对本发明保护范围的限制。本领域技术人员可以根据本发明的精神和原理对本发明做出各种变型和修改，这些变型和修改也在本发明的范围内。

Claims (18)

  1. 一种网络连接恢复装置，配置于用户设备，其中，所述装置包括：
    第一处理单元，其在第一网络设备和/或第一小区发生无线链路失败的情况下，上报第一网络设备和/或第一小区失败的信息或者自主恢复第一网络设备和/或第一小区。
  2. 根据权利要求1所述的装置，其中，第一网络设备发生无线链路失败的情况包括：在所述用户设备配置了双连接的情况下，第一网络设备发生无线链路失败但第二网络设备的信令无线承载仍可用。
  3. 根据权利要求1所述的装置，其中，第一小区发生无线链路失败的情况包括：在所述用户设备配置了载波聚合的情况下，第一小区发生物理层问题或随机接入问题但第二小区仍可用。
  4. 根据权利要求1所述的装置，其中，所述第一处理单元包括：
    第一上报单元，其在所述用户设备配置了双连接的情况下，通过分离的信令无线承载(Split SRB)经第二网络设备向网络侧发送无线链路失败报告。
  5. 根据权利要求4所述的装置，其中，所述无线链路失败报告包括：第一小区组失败信息和/或第二小区组失败信息。
  6. 根据权利要求4所述的装置，其中，在所述用户设备配置了载波聚合的情况下，所述无线链路失败报告包括：第一小区失败信息或者网络设备失败信息。
  7. 根据权利要求1所述的装置，其中，所述第一处理单元包括：
    第二上报单元，其在所述用户设备配置了双连接的情况下，通过辅小区组信令无线承载(SCG SRB)向第二网络设备发送第一网络设备无线链路失败报告，以便所述第二网络设备将第一网络设备无线链路失败的消息上报给网络侧。
  8. 根据权利要求1所述的装置，其中，所述第一处理单元包括：
    第三上报单元，其在所述用户设备配置了载波聚合的情况下，向网络侧报告第一小区失败的信息，以便网络侧根据所述第一小区失败的信息为所述用户设备更换第一小区同时维持第二小区的工作。
  9. 根据权利要求8所述的装置，其中，所述第三上报单元通过物理层信令或者通过介质访问控制(MAC)子层信令或者第一小区失败报告向所述网络侧报告所述 第一小区失败的信息。
  10. 根据权利要求1所述的装置，其中，所述第一处理单元包括：
    第一恢复单元，其在信令无线承载失败但是数据无线承载没有失败的情况下，进行RRC连接重建并保持所述数据无线承载的工作。
  11. 根据权利要求1所述的装置，其中，所述第一处理单元包括：
    第二恢复单元，其在所述用户设备配置了载波聚合的情况下，向与所述第一小区属于同一网络设备的其他小区发起随机接入，请求更换该小区作为第一小区，同时保持第二小区工作。
  12. 根据权利要求1所述的装置，其中，所述第一处理单元包括：
    第三恢复单元，其在所述用户设备配置了双连接的情况下，如果所述第一网络设备没有配置载波聚合，并且信令无线承载发生失败而数据无线承载没有发生失败，则在第一网络设备的其他小区上发起信令无线承载的恢复过程，并保持所述数据无线承载的工作以及第二网络设备的工作。
  13. 根据权利要求1所述的装置，其中，所述第一处理单元包括：
    第四恢复单元，其在所述用户设备配置了双连接的情况下，如果所述第一网络设备配置了载波聚合，并且所述第一网络设备的第一小区发生了无线链路失败，则在第一网络设备的其他小区上发起更换第一小区的过程。
  14. 根据权利要求1所述的装置，其中，所述装置还包括：
    第二处理单元，其在所述用户设备配置了双连接，并且第二网络设备发生无线链路失败而第一网络设备没有发生无线链路失败的情况下，自主恢复第二网络设备。
  15. 根据权利要求14所述的装置，其中，所述第二处理单元包括：
    第五恢复单元，其在所述第二网络设备没有配置载波聚合，并且信令无线承载发生失败而数据无线承载没有发生失败的情况下，在第二网络设备的其他小区上发起信令无线承载的恢复过程，并保持所述数据无线承载的工作以及第一网络设备的工作。
  16. 根据权利要求14所述的装置，其中，所述第二处理单元包括：
    第六恢复单元，其在所述第二网络设备配置了载波聚合，并且所述第二网络设备的第一小区发生了无线链路失败的情况下，在第二网络设备的其他小区上发起更换第一小区的过程。
  17. 一种网络连接恢复装置，配置于第二网络设备，其中，所述装置包括：
    接收单元，其接收用户设备通过分离的信令无线承载发送的无线链路失败报告或通过辅小区组信令无线承载发送的第一网络设备无线链路失败报告；
    发送单元，其将所述无线链路失败报告或者第一网络设备无线链路失败消息发送给网络侧。
  18. 一种网络连接恢复装置，配置于第一网络设备，其中，所述装置包括：
    接收单元，其接收用户设备发送的第一小区失败报告或者接收第二网络设备发送的无线链路失败报告或者第一网络设备无线链路失败消息；
    处理单元，其根据所述第一小区失败报告为所述用户设备更换第一小区同时维持第二小区的工作，或者根据所述无线链路失败报告或者所述第一网络设备无线链路失败消息为所述用户设备更换第一网络设备和/或为所述用户设备更换第一小区。
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111263412A (zh) * 2019-01-17 2020-06-09 维沃软件技术有限公司 一种信息传输方法、设备及系统
CN111278168A (zh) * 2019-01-18 2020-06-12 维沃移动通信有限公司 信息指示方法、信息获取方法、终端及网络节点
CN112291803A (zh) * 2019-07-23 2021-01-29 华为技术有限公司 一种通信方法、终端设备及计算机可读存储介质
CN113170522A (zh) * 2018-12-03 2021-07-23 高通股份有限公司 双连通性系统中从链路故障中快速恢复
WO2021147822A1 (zh) * 2020-01-21 2021-07-29 维沃移动通信有限公司 无线链路恢复方法及设备
JP2022519839A (ja) * 2019-02-11 2022-03-25 テレフオンアクチーボラゲット エルエム エリクソン（パブル） マスタノードによるマスタセルグループ障害ハンドリング
WO2022160159A1 (en) * 2021-01-28 2022-08-04 Apple Inc. Mcg failure recovery enhancement in dc mode

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019032002A1 (en) * 2017-08-10 2019-02-14 Telefonaktiebolaget Lm Ericsson (Publ) METHODS OF RESPONSE TO SCG FAILURE IN WIRELESS DC AND TERMINAL COMMUNICATIONS AND ASSOCIATED TERMINALS AND NETWORK NODES
US11405972B2 (en) * 2018-06-01 2022-08-02 Qualcomm Incorporated Radio link failure (RFL) procedure with generic cell group management
JP7305684B2 (ja) * 2019-02-13 2023-07-10 京セラ株式会社 通信制御方法
CN112822728A (zh) * 2019-11-15 2021-05-18 中国移动通信有限公司研究院 信息上报、接收方法、终端及网络设备
CN113079587B (zh) * 2020-01-06 2023-05-19 维沃移动通信有限公司 一种失败信息的传输方法及通信设备
US11343729B1 (en) * 2020-05-27 2022-05-24 Sprint Spectrum L.P. Dynamic air-interface reconfiguration based on predicted movement toward location where dual-connectivity tends to be lost
CN113133073B (zh) * 2021-04-22 2022-09-20 荣耀终端有限公司 网络连接重建方法及其装置
US11800578B2 (en) * 2021-10-28 2023-10-24 Cisco Technology, Inc. Techniques for handling tunnel errors for multi-tunnel sessions
WO2024011588A1 (zh) * 2022-07-15 2024-01-18 Oppo广东移动通信有限公司 无线通信的方法、终端设备和网络设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102870450A (zh) * 2011-05-03 2013-01-09 联发科技股份有限公司 次服务小区无线电链路监测和无线电链路失败处理
WO2015000184A1 (zh) * 2013-07-05 2015-01-08 富士通株式会社 参数获取方法、参数优化方法及其装置、系统
CN104349361A (zh) * 2013-08-06 2015-02-11 上海贝尔股份有限公司 用于无线资源控制连接的方法及装置
CN105472667A (zh) * 2014-06-23 2016-04-06 索尼公司 无线通信系统中的电子设备以及进行移动性测量的方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008211330A (ja) * 2007-02-23 2008-09-11 Hitachi Communication Technologies Ltd ノード制御装置およびノードシステム
US20150133122A1 (en) * 2013-11-08 2015-05-14 Industrial Technology Research Institute Method of Handling Radio Link Failure
JP5878595B2 (ja) 2014-07-11 2016-03-08 株式会社Ｎｔｔドコモ ユーザ端末、無線通信システムおよび無線通信方法
US9980159B2 (en) * 2014-09-26 2018-05-22 Mediatek Inc. RRC re-establishment on secondary eNodeB for dual connectivity
US20180227980A1 (en) 2015-08-12 2018-08-09 Ntt Docomo, Inc. User apparatus and connection control method
EP3566539B1 (en) * 2017-01-06 2021-03-17 Telefonaktiebolaget LM Ericsson (PUBL) Radio network node, wireless device, and methods performed therein for handling connections in a wireless communication network
US10951533B2 (en) * 2017-09-27 2021-03-16 Qualcomm Incorporated Header formats in wireless communication
US11457376B2 (en) * 2019-02-01 2022-09-27 Qualcomm Incorporated Robust radio link monitoring framework for unlicensed spectrum
US11483889B2 (en) * 2019-03-22 2022-10-25 Samsung Electronics Co., Ltd. Method and device for recovering connection failure to network in next generation mobile communication system
US11503505B2 (en) * 2019-08-14 2022-11-15 Lg Electronics Inc. Conditional mobility with partially compliant mobility command
US20210105686A1 (en) * 2019-10-03 2021-04-08 Lg Electronics Inc. Method and apparatus for reporting error indication related to a radio link during handover procedure in wireless communication system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102870450A (zh) * 2011-05-03 2013-01-09 联发科技股份有限公司 次服务小区无线电链路监测和无线电链路失败处理
WO2015000184A1 (zh) * 2013-07-05 2015-01-08 富士通株式会社 参数获取方法、参数优化方法及其装置、系统
CN104349361A (zh) * 2013-08-06 2015-02-11 上海贝尔股份有限公司 用于无线资源控制连接的方法及装置
CN105472667A (zh) * 2014-06-23 2016-04-06 索尼公司 无线通信系统中的电子设备以及进行移动性测量的方法

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3892056A4 (en) * 2018-12-03 2022-12-07 Qualcomm Incorporated FAST RECOVERY OF CONNECTION FAULTS IN DUAL CONNECTIVITY SYSTEMS
CN113170522A (zh) * 2018-12-03 2021-07-23 高通股份有限公司 双连通性系统中从链路故障中快速恢复
CN111263412A (zh) * 2019-01-17 2020-06-09 维沃软件技术有限公司 一种信息传输方法、设备及系统
CN111278168A (zh) * 2019-01-18 2020-06-12 维沃移动通信有限公司 信息指示方法、信息获取方法、终端及网络节点
WO2020147703A1 (zh) * 2019-01-18 2020-07-23 维沃移动通信有限公司 信息指示方法、信息获取方法、终端及网络节点
US11937321B2 (en) 2019-01-18 2024-03-19 Vivo Mobile Communication Co., Ltd. Information indication method, information obtaining method, terminal, and network node
CN111278168B (zh) * 2019-01-18 2022-10-18 维沃移动通信有限公司 信息指示方法、信息获取方法、终端及网络节点
US11877332B2 (en) 2019-02-11 2024-01-16 Telefonaktiebolaget Lm Ericsson (Publ) Master cell group failure handling by a master node
JP2022519839A (ja) * 2019-02-11 2022-03-25 テレフオンアクチーボラゲット エルエム エリクソン（パブル） マスタノードによるマスタセルグループ障害ハンドリング
JP7288965B2 (ja) 2019-02-11 2023-06-08 テレフオンアクチーボラゲット エルエム エリクソン（パブル） マスタノードによるマスタセルグループ障害ハンドリング
CN112291803A (zh) * 2019-07-23 2021-01-29 华为技术有限公司 一种通信方法、终端设备及计算机可读存储介质
CN113225839B (zh) * 2020-01-21 2023-06-30 维沃移动通信有限公司 一种无线链路恢复方法及设备
CN113225839A (zh) * 2020-01-21 2021-08-06 维沃移动通信有限公司 一种无线链路恢复方法及设备
WO2021147822A1 (zh) * 2020-01-21 2021-07-29 维沃移动通信有限公司 无线链路恢复方法及设备
WO2022160159A1 (en) * 2021-01-28 2022-08-04 Apple Inc. Mcg failure recovery enhancement in dc mode

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