CN108307452A - Connect restoration methods and device, base station, user terminal - Google Patents
Connect restoration methods and device, base station, user terminal Download PDFInfo
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- CN108307452A CN108307452A CN201610665331.6A CN201610665331A CN108307452A CN 108307452 A CN108307452 A CN 108307452A CN 201610665331 A CN201610665331 A CN 201610665331A CN 108307452 A CN108307452 A CN 108307452A
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- connection
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- user terminal
- recovery
- configuration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
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- Computer Networks & Wireless Communication (AREA)
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Abstract
A kind of connection restoration methods and device, base station, user terminal, connection restoration methods include：The connection recovery request that user terminal is sent is received, the connection recovery request, which carries, blocks recovery mark；Acquisition request is sent at least one base station according to the Base Station Identification restored in mark that blocks, is configured with obtaining first connection of the user terminal in upper primary connection；When getting the first connection configuration, connection is sent according at least part of the first connection configuration and restores response to the user terminal；When receiving feedback of the user terminal for the connection recovery response, transmitting path handovers request to core network element, to complete the switching in path.Technical solution of the present invention improves terminal and is connecting validity when restoring.
Description
Technical field
The present invention relates to the communications field more particularly to a kind of connection restoration methods and device, base station, user terminals.
Background technology
In long evolving system (Long Term Evolution, LTE), user equipment (User Equipment, UE,
Or be user terminal) when there is business demand, network can be accessed and establish wireless heterogeneous networks (Radio Resource
Control, RRC) connection, dedicated bearer is established with transmission data.For UE after entering connected state, base station can be that UE distribution is necessary
Parameter.For the carrying that UE is established, base station needs to be known as the channel information between core net that the carrying is established, on
State the context (UE Context) that parameter is properly termed as UE.When UE enters Idle state from connected state, base station can discharge the UE
All parameters, that is, discharge the context of the UE.If UE establishes business again, base station needs to be that the UE configures above-mentioned ginseng again
Number, the process will be completed by a plurality of space interface signaling and S1 interface signalings.
In the prior art, low cost terminals and ordinary terminal may need more frequently to carry out data transmission, but if
The terminal is set to maintain connected state for a long time, not only power consumption is big, but also the signaling of its connected state of network operation is caused to consume
Greatly.For this problem, Restoration Mechanism (RRC Suspend or UP Optimization) can be introduced.UE enters connection
It is the recovery mark (Resume ID) that its allocated length is 40 bits when state, the UE into Idle state needs to retain this access
The parameter that network is configured；Base station can also retain the UE, and this accesses the parameter that network is configured, which is known as source base station.When
When UE accesses network again, UE can initiate to restore flow, the recovery mark of the UE be indicated to base station, base station can know as a result,
The not UE, and the parameter that the last access network of application preservation is configured is that UE restores service channel, i.e. the GTP tunnels of S1 interfaces
Road, so that UE can be carried out data transmission with the channel.If UE is moved to other cells, serving BS is changed to target base
It stands.UE is initiated after restoring flow, and target BS can determine source base station by the recovery mark that UE is sent, and then pass through source base
It stands and obtains the parameters that are configured in upper primary connection of UE, it, can be with after obtaining the parameter that UE is configured in upper primary connection
It completes to restore flow.Wherein, restore the UE marks of Base Station Identification and 20 bits that mark includes 20 bits.If UE can be even
The recovery mark that 40 bits are carried in recovery request is connect, target BS can identify source base station.
But in practical applications, especially for non-narrowband terminal, total bit of connection recovery request is sent for UE
Number has stringent limitation, and UE can only be sent when sending connection recovery request blocks recovery mark.Block recovery mark
(truncated Resume ID) only has 24 bits.In this case, target BS can not accurately determine source base station, that
Target BS cannot obtain the parameter that UE is configured in upper primary connection from source base station, and it is extensive that UE is unable to successful execution connection
It is multiple.Meanwhile if X2 interface is not present between target BS and source base station, target BS equally cannot obtain UE from source base station and exist
The parameter configured when last time connection, UE are unable to successful execution connection and restore, and UE needs newly-built RRC to connect with target BS.
Source base station also preserves the parameter that UE is configured in upper primary connection at this time, and waste of resource, restoring mark can not be timely
Release.
Invention content
Present invention solves the technical problem that being how to improve terminal to connect validity when restoring.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of connection restoration methods, connection restoration methods include：
The connection recovery request that user terminal is sent is received, the connection recovery request, which carries, blocks recovery mark；According to described section
The disconnected Base Station Identification restored in mark is sent at least one base station obtains request, is once connected upper with obtaining the user terminal
The first connection configuration when connecing；When getting the first connection configuration, according at least part of the first connection configuration
It sends connection and restores response to the user terminal；Restore the feedback responded for the connection receiving the user terminal
When, transmitting path handovers request to core network element, to complete the switching in path.
Optionally, the connection restoration methods further include：Notice sends the source base station of the first connection configuration, so that
Source base station release the first connection configuration.
Optionally, first connection is obtained by X2 interface and configures and notify the source base station.
Optionally, the connection restoration methods further include：If obtaining the first connection configuration failure, connection is sent
Signaling is established to the user terminal, to establish new connection.
Optionally, in response to the new establishment of connection, the core network element passes through the interface notification with source base station
Source base station release the first connection configuration, wherein the information of the interface is pre-stored in the core network element, institute
It states user terminal and connection is established by the source base station and the core network element in upper primary foundation connection.
In order to solve the above technical problems, the embodiment of the invention also discloses a kind of connection restoration methods, restoration methods are connected
Including：
Connection recovery request is sent to target BS, recovery mark, the target are blocked in the connection recovery request carrying
The the first connection configuration for restoring mark acquisition user terminal in upper primary connection is blocked in base station according to, and it is extensive to send connection
Complex response is to the user terminal；It receives the connection and restores response, and needle is sent according to the second connection configuration pre-saved
The feedback for restoring response to the connection, to complete to connect.
Optionally, the connection restoration methods further include：When not receiving the connection recovery response, the mesh is received
Signaling is established in the connection that mark base station is sent；Signaling is established according to the connection and establishes Signaling Radio Bearer, and feeds back to the mesh
Base station is marked, to establish new connection.
In order to solve the above technical problems, the embodiment of the invention also discloses a kind of connection recovery device, recovery device is connected
Including：Recovery request receiving unit, is suitable for receiving the connection recovery request that user terminal is sent, and the connection recovery request carries
Block recovery mark；Request transmitting unit is obtained, suitable for blocking the Base Station Identification in restoring to identify according to at least one
A base station, which is sent, obtains request, is configured with obtaining first connection of the user terminal in upper primary connection；Connection restores to ring
Transmission unit is answered, suitable for when getting the first connection configuration, being sent out according at least part of the first connection configuration
Connection is sent to restore response to the user terminal；Path switching request transmission unit, suitable for receiving the user terminal needle
When restoring the feedback of response to the connection, transmitting path handovers request to core network element, to complete the switching in path.
Optionally, the connection recovery device further includes：Notification unit is discharged, sending first connection suitable for notice matches
The source base station set, so that source base station release the first connection configuration.
Optionally, first connection is obtained by X2 interface and configures and notify the source base station.
Optionally, the connection recovery device further includes：Connection establishment unit is suitable for obtaining the first connection configuration
When failure, sends connection and establish signaling to the user terminal, to establish new connection.
Optionally, in response to the new establishment of connection, the core network element passes through the interface notification with source base station
Source base station release the first connection configuration, wherein the information of the interface is pre-stored in the core network element, institute
It states user terminal and connection is established by the source base station and the core network element in upper primary foundation connection.
In order to solve the above technical problems, the embodiment of the invention also discloses a kind of connection recovery device, recovery device is connected
Including：Recovery request transmission unit is suitable for sending connection recovery request to target BS, and the connection recovery request carrying is blocked
Restore mark, the target BS blocks the first connection for restoring mark acquisition user terminal in upper primary connection according to
Configuration, and send connection and restore response to the user terminal；Recovery unit is connected, is suitable for receiving the connection and restores response,
And the feedback for restoring response for the connection is sent according to the second connection configuration pre-saved, to complete to connect.
Optionally, the connection recovery device further includes：Signaling receiving unit is established in connection, is suitable for receiving the connection
When restoring response failure, receives the connection that the target BS is sent and establish signaling；Unit is established in carrying, is suitable for according to the company
It connects and establishes signaling and establish Signaling Radio Bearer, and feed back to the target BS, to establish new connection.
In order to solve the above technical problems, the embodiment of the invention also discloses a kind of base station, the base station includes the connection
Recovery device.
In order to solve the above technical problems, the embodiment of the invention also discloses a kind of user terminal, the user terminal includes
The connection recovery device.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that：
The connection recovery request that the embodiment of the present invention is sent by receiving user terminal, the connection recovery request carry
Block recovery mark；Acquisition request is sent at least one base station according to the Base Station Identification restored in mark that blocks, to obtain
Take first connection configuration of the user terminal in upper primary connection；When getting the first connection configuration, according to described
At least part of first connection configuration sends connection and restores response to the user terminal；Receiving the user terminal needle
When restoring the feedback of response to the connection, transmitting path handovers request to core network element, to complete the switching in path.Pass through
It blocks the Base Station Identification restored in mark and sends acquisition request at least one base station, can ensure to get to a certain extent
First connection configuration of the user terminal in upper primary connection；And then can according to first connection configuration at least part with
Family terminal quickly establishes connection, to carry out data transmission, improves terminal and is connecting validity when restoring, improve transmission effect
Rate.
Further, notice sends the source base station of the first connection configuration, so that source base station release described first
Connection configuration can occupy storage resource in source base station side to avoid the first connection configuration, reduce the wasting of resources.
Further, in response to new establishment of connection, the core network element passes through described in the interface notification with source base station
Source base station release the first connection configuration.Technical solution of the present invention ensure that obtain it is described first connection configuration failure when,
The source base station release the first connection configuration can be notified by core network element, avoid the first connection configuration in source base station
Side occupies storage resource, reduces the wasting of resources.
Description of the drawings
Fig. 1 is the schematic diagram that a kind of configuration of the prior art restores identification procedure；
Fig. 2 is a kind of flow chart of connection restoration methods of the embodiment of the present invention；
Fig. 3 is the flow chart of another kind of embodiment of the present invention connection restoration methods；
Fig. 4 is a kind of schematic diagram of connection recovery process of the embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of connection recovery device of the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of another kind of embodiment of the present invention connection recovery device.
Specific implementation mode
As described in the background art, in practical applications, especially for non-narrowband terminal, connection is sent for UE and is restored
The total bit number of request has stringent limitation, and UE can only be sent when sending connection recovery request blocks recovery mark.Block recovery
Mark (truncated Resume ID) only has 24 bits.In this case, target BS can not accurately determine source base
It stands, then target BS cannot obtain the parameter that UE is configured in upper primary connection from source base station, UE is unable to successful execution
Connection restores.Meanwhile if X2 interface is not present between target BS and source base station, target BS cannot equally be obtained from source base station
The parameter for taking UE to be configured in upper primary connection, UE are unable to successful execution connection and restore, and UE needs newly-built RRC with target BS
Connection.Source base station also preserves the parameter that UE is configured in upper primary connection at this time, waste of resource, restore mark can not and
When discharge.
Present inventor analyzes the prior art.Restore as shown in Figure 1, Fig. 1 is a kind of configuration of the prior art
The schematic diagram of identification procedure.Base station notifies UE that it restores mark (Resume ID) by RRC signaling.
Specifically, in step 1, UE enters connected state, commences business, and can carry out uplink and downlink data transmission.
In step 2, after base station determines that UE does not have data transmission, determine that the context for retaining UE, base station are the UE points
It is identified with recovery.
In step 3, base station to core network element mobile management entity (Mobility Management Entity,
MME UE context deactivations message) is sent, instruction retains configuration parameters of the UE in upper primary connection.Specifically, base station can
To retain the time of the configuration parameter to MME instructions.
In step 4, it if MME agrees to retain configuration parameters of the UE in upper primary connection, is returned on UE to base station
Context activation confirms.
In steps of 5, base station sends RRC connections to UE and hangs up signaling, and hanging up signaling can indicate to restore mark.
In step 6, after UE receives hang-up signaling, into Idle state.UE retains configurations of the UE in upper primary connection
Parameter, for example, security parameter, layer 1, layer 2 and layer 3 configuration parameter.
UE enters after Idle state, executes cell reselection, selects the cell that can be resident.Since UE can be moved, and can
Other base station jurisdiction districts can be resided in.If UE has data transfer demands, UE that can initiate to connect in be resident cell at this time
Connect recovery flow.Since the limitation of resource is distributed in base station in random access response, UE can only be carried when initiating to restore flow
Recovery mark is blocked, causes target BS that can not accurately determine source base station, then target BS cannot be obtained from source base station
The parameter that UE is configured in upper primary connection, UE are unable to successful execution connection and restore.
To make the above purposes, features and advantages of the invention more obvious and understandable, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
Fig. 2 is a kind of flow chart of connection restoration methods of the embodiment of the present invention.
The connection restoration methods can be used for base station side, more specifically, can be used for target BS side.It is appreciated that
, target BS can refer to the current serving BSs of UE.
The connection restoration methods may comprise steps of：
Step S201：Receive the connection recovery request that user terminal is sent；
Step S202：Acquisition request is sent at least one base station according to the Base Station Identification restored in mark that blocks,
To obtain first connection configuration of the user terminal in upper primary connection；
Step S203：When getting the first connection configuration, sent out according at least part of the first connection configuration
Connection is sent to restore response to the user terminal；
Step S204：When receiving feedback of the user terminal for the connection recovery response, transmitting path is cut
Request is changed to core network element, to complete the switching in path.
In specific implementation, the connection recovery request, which can carry, blocks recovery mark.Specifically, blocking recovery mark
Know the UE marks of Base Station Identification and 12 bits that 12 bits may be used.Specifically, base station can be determined by Base Station Identification,
And UE is determined by UE marks.
In step s 201, target BS, which receives, blocks after recovery mark, can not accurately judge to remain with the
The source base station of one connection configuration, that is to say, that target BS not can determine that by blocking 12 bit Base Station Identifications in restoring to identify
Real base station is identified as the base station of 20 bit lengths.So in step S202, target BS blocks recovery mark according to
In Base Station Identification at least one base station send obtain request.Specifically, target BS can be at least one possible
Base station, which is sent, obtains request, and waits for the feedback of the base station.Still further, it is at most only directed to there are one base station (source base station)
Request is obtained to be fed back；If there are X2 interface, target BS successfully to get between target BS and source base station
The first connection configuration.
It is understood that the acquisition request can obtain UE context requests, to obtain UE in upper primary connection
When be stored in the configuration parameter of source base station.
It is connected specifically, user terminal is established in upper primary connection with source base station, and source base station preserves user's end
First connection configuration of the end in upper primary connection.That is, source base station can be user terminal in upper primary connection
Serving BS.
It should be noted that the first connection configuration can be stored in base station, the first connection configuration may include access layer ginseng
Number and bearing parameter, such as can be that RRC connections configuration, configuration, security configuration and the S1 interfaces of carrying and the user are whole
Hold relevant parameter configuration etc., specifically, carrying configuration can be source base station be carry foundation with core network element it
Between channel information, that is, the tunnel established based on GPRS Tunnel Protocol (GPRS Tunneling Protocol, GTP)
Information.Second connection configuration can be stored in user terminal, and the second connection configuration may include access layer parameter and Non-Access Stratum
Parameter, such as can be configuration, the security configuration etc. of RRC connections configuration, carrying；More specifically, can be layer 2 (layer2,
L2) relevant configuration parameter, the relevant configuration parameter of physical layer and the relevant configuration parameter of layer 3 (layer 3, L3) etc..
In step S203, if target BS gets the first connection configuration, matched according to first connection
At least part set sends connection and restores response to the user terminal.And the switching in path is completed in step S204, it builds
Vertical dedicated bearer is with transmission data.
It is connected specifically, target BS gets described first with postponing, it can be according to the software and hardware item of target BS
Part modifies to the partial parameters in the first connection configuration, to realize the recovery being connect with user terminal.Such as it can be with
It is that target BS modifies to the relevant parameter of security configuration.
In specific implementation, after the completion of user terminal and target BS restore to connect, target BS can notify to send institute
The source base station of the first connection configuration is stated, so that source base station release the first connection configuration, avoids the first connection configuration from existing
Source base station side occupies storage resource, reduces the wasting of resources.Specifically, target BS can obtain institute by X2 interface from source base station
The source base station release the first connection configuration can be notified by X2 interface by stating the first connection configuration and target BS.
Specifically, if X2 interface is not present between target BS and source base station, described in target BS acquisition
First connection configuration failure.Target BS can send connection and establish signaling to the user terminal, to establish new connection.Tool
Body, in response to the new establishment of connection, the core network element for example, MME, by with the interface notification of source base station institute
State source base station release the first connection configuration, wherein the information of the interface is pre-stored in the core network element, described
User terminal is established by the source base station and the core network element in upper primary foundation connection and is connected, therefore the core
Network element can obtain the interface message.
It is understood that in restoring flow, core network element retains the parameter that UE is configured in upper primary connection
At least part, which can be the configuration parameter and the relevant GTP tunnel information of carrying of the Non-Access Stratum of UE.
It should be noted that compared with the context (UE Context) of UE in the prior art, the first of source base station preservation
What the UE that the second connection configuration and core network element side that connection configuration, the ends UE preserve preserve was configured in upper primary connection
The context of the UE is collectively formed at least part of parameter.
The embodiment of the present invention blocks recovery mark in UE carryings, when target BS cannot accurately determine source base station, passes through increasing
The processing of strong target BS still can obtain first connection configurations of the UE in upper primary connection, and then can be according to first
At least part of connection configuration is quickly established with user terminal to be connect, and to carry out data transmission, it is extensive in connection to improve terminal
Validity when multiple improves efficiency of transmission.At the same time it can also enable source base station to discharge of UE in upper primary connection in time
One connection configuration, avoids the wasting of resources.
Fig. 3 is the flow chart of another kind of embodiment of the present invention connection restoration methods.
The connection restoration methods are used for subscriber terminal side, and the connection restoration methods may comprise steps of：
Step S301：Connection recovery request is sent to target BS；
Step S302：It receives the connection and restores response, and sent according to the second connection configuration pre-saved and be directed to institute
The feedback that connection restores response is stated, to complete to connect.
In specific implementation, recovery mark is blocked in connection recovery request carrying, and the target BS blocks recovery according to
Mark obtains first connection configuration of the user terminal in upper primary connection, and sends connection and restore response to user end
End.
In specific implementation, the second connection configuration can be stored in user terminal, and the second connection configuration may include connecing
Enter layer parameter and Non-Access Stratum parameter, such as can be configuration, the security configuration etc. of RRC connections configuration, carrying；It is more specific and
Speech, can be layer 2 (layer 2, L2) relevant configuration parameter, the relevant configuration parameter of physical layer and layer 3 (layer 3,
L3) relevant configuration parameter etc..
In specific implementation, user terminal shows mesh when the connection for not receiving target BS transmission restores response
It marks base station and obtains the first connection configuration failure.Target BS can send new connection and establish signaling at this time, and user terminal can connect
It receives the connection and establishes signaling.Signaling is established according to the connection and establishes Signaling Radio Bearer, and feeds back to the target BS,
To establish new connection.
Fig. 4 is a kind of schematic diagram of connection recovery process of the embodiment of the present invention.
As shown in figure 4, in step 1, UE initiates the connection recovery request to target BS, RRC connection recovery requests are sent
To target BS.It is carried in connection recovery request and blocks recovery mark.
In step 2 and 2A, since target BS can not accurately determine source base station, mesh based on recovery mark is blocked
It marks base station and sends the request for obtaining UE contexts to multiple base stations.Specifically, target BS sends to base station 1 and base station 2 and obtains
The request of UE contexts.
In step 3 and 3A, base station 1 and base station 2 are sent to target BS for the feedback for obtaining request, at most there are one
Base station is sent for the response for obtaining request.Specifically, target BS obtains the first connection configuration failure, target base from base station 1
It stands and obtains the first connection configuration successful from base station 2.That is, base station 2 is source base station.
In step 4, target BS is configured to UE according to the first connection and changes necessary parameter, such as security configuration parameter
Deng then to UE transmission RRC connections recovery signalings.
In steps of 5, UE sends RRC connections to target BS and restores to complete response.So far the connection on eating dishes without rice or wine is extensive
It is multiple.
In step 6, target BS is to core network element MME transmitting path switching requests, with notify MME will originally about
The path of the S1 interfaces of the UE is switched to target BS from base station 2.
In step 7, MME transmitting pathes handoff response is to target BS.So far, the carrying of UE restores completely, can
To proceed by the transmission of uplink and downlink data.
In step 8, target BS notice base station 2 discharges the first connection configuration of the UE.
Furthermore, connection recovery process shown in Fig. 4 is that there are when X2 interface between target BS and base station 2
Situation.At this point, target BS can obtain the first connection configuration from base station 2.
In specific implementation, if X2 interface is not present between target BS and base station 2, by step 1 and step 2 it
Afterwards, target BS can not obtain the first connection configuration from base station 2, and target BS sends RRC connections and establishes signaling to UE at this time, leads to
Know that UE establishes Signaling Radio Bearer, UE returns to RRC connections and establishes completion response.Then target BS notifies MME about the non-of UE
Access layer signaling, such as service request, MME notice target BS are that UE establishes Data Radio Bearer.
Compared with UE in the prior art establishes the process of new connection with target BS by RRC connection request, the present invention
Embodiment is to establish new connection when UE sends connection recovery request, ensure that when connection restores to succeed, by building
Vertical new connection transmission data, improves data transmission efficiency.
Specifically, after UE and target BS establish new connection, MME can determine that the UE begins setting up new data
Radio bearer, MME can also determine that the recovery of the UE has stopped.MME can send the release of the first connection configuration to base station 2
Request, notice base station 2 discharge the first connection configuration of the UE, can not only save the storage resource of 2 side of base station, but also can make
Restore mark resource to discharge in advance.Specifically, configuration parameters of the UE that the sides MME preserve in upper primary connection may include MME
With the interface message between base station 2, MME can notify first connection of the release of base station 2 to match by its interface between base station 2
It sets.
Fig. 5 is a kind of structural schematic diagram of connection recovery device of the embodiment of the present invention.
Connection recovery device 50 can be used for base station side, and more specifically, connection recovery device 50 can be used for target base
It stands side.Connection recovery device 50 may include recovery request receiving unit 501, obtain request transmitting unit 502, connection recovery sound
Answer transmission unit 503 and path switching request transmission unit 504.
Wherein, recovery request receiving unit 501 is suitable for receiving the connection recovery request that user terminal is sent, and the connection is extensive
Multiple request, which carries, blocks recovery mark；
Request transmitting unit 502 is obtained suitable for blocking the Base Station Identification in restoring to identify according to at least one base station
It sends and obtains request, configured with obtaining first connection of the user terminal in upper primary connection；
Connection restores response transmission unit 503 and is suitable for, when getting the first connection configuration, according to described first connecting
At least part for connecing configuration sends connection recovery response to the user terminal；
Path switching request transmission unit 504 is suitable for receiving the user terminal for the connection recovery response
When feedback, transmitting path handovers request to core network element, to complete the switching in path.
In specific implementation, connection recovery device 50 can also include release notification unit (not shown), discharge notification unit
Suitable for notifying to send the described first source base station for connecting configuration, so that source base station release the first connection configuration.
In specific implementation, connection recovery device 50 can also include connection establishment unit (not shown), connection establishment unit
Suitable for when obtaining the first connection configuration failure, sending connection and establishing signaling to the user terminal, to establish new company
It connects.
In specific implementation, in response to the new establishment of connection, the core network element passes through the interface with source base station
Notify the source base station release the first connection configuration, wherein the information of the interface is pre-stored in the core net net
Member, the user terminal are established by the source base station and the core network element in upper primary foundation connection and are connected.
The specific implementation mode of the embodiment of the present invention can refer to the specific embodiment of connection restoration methods shown in Fig. 2, herein
It repeats no more.
Fig. 6 is the structural schematic diagram of another kind of embodiment of the present invention connection recovery device.
Connection recovery device 60 can be used for subscriber terminal side, and connection recovery device 60 may include that recovery request sends list
Member 601 and connection recovery unit 602.
Wherein, recovery request transmission unit 601 is suitable for sending connection recovery request to target BS, and the connection recovery is asked
Carrying is asked to block recovery mark, the target BS blocks recovery mark according to and obtains user terminal in upper primary connection
The first connection configuration, and send connection and restore response to the user terminal；
It connects recovery unit 602 and is suitable for receiving the connection recovery response, and configured according to the second connection pre-saved
The feedback for restoring response for the connection is sent, to complete to connect.
In specific implementation, connection recovery device 60 can also include that signaling receiving unit (not shown) and carrying are established in connection
Unit (not shown) is established, connection establishes signaling receiving unit and is suitable for, when receiving the connection recovery response failure, receiving institute
Signaling is established in the connection for stating target BS transmission；Carrying establish unit, suitable for according to it is described connection establish signaling establish signaling without
Line carries, and feeds back to the target BS, to establish new connection.
The specific implementation mode of connection recovery device 60 of the embodiment of the present invention can refer to the tool of connection restoration methods shown in Fig. 3
Body embodiment, details are not described herein again.
The embodiment of the invention also discloses a kind of base station, the base station may include the connection recovery device 50 in Fig. 5.
The embodiment of the invention also discloses a kind of terminal, the terminal may include the connection recovery device 60 in Fig. 6.Institute
State the terminal that terminal can include but is not limited to mobile phone, tablet computer, computer etc. arbitrarily and can implement communication.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in computer readable storage medium, to store
Medium may include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Any those skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (16)
1. a kind of connection restoration methods, which is characterized in that including：
The connection recovery request that user terminal is sent is received, the connection recovery request, which carries, blocks recovery mark；
Acquisition request is sent at least one base station according to the Base Station Identification restored in mark that blocks, to obtain the user
First connection configuration of the terminal in upper primary connection；
When getting the first connection configuration, connection is sent according at least part of the first connection configuration and restores response
To the user terminal；
When receiving feedback of the user terminal for the connection recovery response, transmitting path handovers request to core net
Network element, to complete the switching in path.
2. connection restoration methods according to claim 1, which is characterized in that further include：
Notice sends the source base station of the first connection configuration, so that source base station release the first connection configuration.
3. connection restoration methods according to claim 2, which is characterized in that obtain first connection by X2 interface and match
Set and notify the source base station.
4. connection restoration methods according to claim 1, which is characterized in that further include：
If obtaining the first connection configuration failure, sends connection and establish signaling to the user terminal, to establish newly
Connection.
5. connection restoration methods according to claim 4, which is characterized in that in response to the new establishment of connection, institute
It states core network element and configuration is connect by source base station release described first described in the interface notification with source base station, wherein is described to connect
The information of mouth is pre-stored in the core network element, and the user terminal passes through the source base station in upper primary foundation connection
It establishes and connects with the core network element.
6. a kind of connection restoration methods, which is characterized in that including：
Connection recovery request is sent to target BS, recovery mark, the target BS are blocked in the connection recovery request carrying
According to the first connection configuration blocked and restore mark acquisition user terminal in upper primary connection, and sends connection and restore sound
It should be to the user terminal；
When receiving the connection recovery response, restore to connect according to the second connection configuration pre-saved, and send and be directed to
The connection restores the feedback of response.
7. connection restoration methods according to claim 6, which is characterized in that further include：
When not receiving the connection recovery response, receives the connection that the target BS is sent and establish signaling；
Signaling is established according to the connection and establishes Signaling Radio Bearer, and feeds back to the target BS, to establish new connection.
8. a kind of connection recovery device, which is characterized in that including：
Recovery request receiving unit, is suitable for receiving the connection recovery request that user terminal is sent, and the connection recovery request carries
Block recovery mark；
Request transmitting unit is obtained, is obtained to the transmission of at least one base station suitable for blocking the Base Station Identification restored in mark according to
Request is taken, is configured with obtaining first connection of the user terminal in upper primary connection；
Connection restores response transmission unit, suitable for when getting the first connection configuration, being configured according to first connection
At least part send connection and restore response to the user terminal；
Path switching request transmission unit, suitable for receiving feedback of the user terminal for the connection recovery response
When, transmitting path handovers request to core network element, to complete the switching in path.
9. connection recovery device according to claim 8, which is characterized in that further include：
Notification unit is discharged, is suitable for notifying sending the source base station of the first connection configuration, so that the source base station discharges institute
State the first connection configuration.
10. connection recovery device according to claim 9, which is characterized in that obtain first connection by X2 interface
Configure and notify the source base station.
11. connection recovery device according to claim 8, which is characterized in that further include：
Connection establishment unit is suitable for, when obtaining the first connection configuration failure, sending connection and establishing signaling to the user
Terminal, to establish new connection.
12. connection recovery device according to claim 11, which is characterized in that in response to the new establishment of connection,
The core network element connect configuration by source base station release described first described in the interface notification with source base station, wherein described
The information of interface is pre-stored in the core network element, and the user terminal passes through the source base in upper primary foundation connection
It stands to establish with the core network element and connect.
13. a kind of connection recovery device, which is characterized in that including：
Recovery request transmission unit is suitable for sending connection recovery request to target BS, and the connection recovery request carrying is blocked
Restore mark, the target BS blocks the first connection for restoring mark acquisition user terminal in upper primary connection according to
Configuration, and send connection and restore response to the user terminal；
Recovery unit is connected, is suitable for receiving the connection and restores response, and needle is sent according to the second connection configuration pre-saved
The feedback for restoring response to the connection, to complete to connect.
14. connection recovery device according to claim 13, which is characterized in that further include：
Signaling receiving unit is established in connection, is suitable for, when receiving the connection recovery response failure, receiving the target BS hair
Signaling is established in the connection sent；
Unit is established in carrying, establishes Signaling Radio Bearer suitable for establishing signaling according to the connection, and feed back to the target base
It stands, to establish new connection.
15. a kind of base station, which is characterized in that connect recovery device including such as claim 8 to 12 any one of them.
16. a kind of user terminal, which is characterized in that including connection recovery device according to claim 13 or 14.
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| CN201610665331.6A CN108307452B (en) | 2016-08-12 | 2016-08-12 | Connection recovery method and device, base station and user terminal |
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| CN201610665331.6A CN108307452B (en) | 2016-08-12 | 2016-08-12 | Connection recovery method and device, base station and user terminal |
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| CN108307452B (en) | 2020-10-23 |
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