CN103841608A - Method, device and system for radio resource control connection reestablishment - Google Patents
Method, device and system for radio resource control connection reestablishment Download PDFInfo
- Publication number
- CN103841608A CN103841608A CN201210475703.0A CN201210475703A CN103841608A CN 103841608 A CN103841608 A CN 103841608A CN 201210475703 A CN201210475703 A CN 201210475703A CN 103841608 A CN103841608 A CN 103841608A
- Authority
- CN
- China
- Prior art keywords
- enb
- rrc connection
- establishment
- establishes
- source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0079—Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/18—Management of setup rejection or failure
Abstract
The invention discloses a method, a device and a system for radio resource control connection reestablishment. The method comprises the following steps: a reestablishment target eNB sends an RLF indication message to a reestablishment source eNB and requests the reestablishment source eNB to initiate a handover to the reestablishment target eNB, wherein the RLF indication message carries an inter-station RRC connection reestablishment indication, and the inter-station RRC connection reestablishment indication shows that the reestablishment target eNB supports inter-station RRC connection reestablishment; and the reestablishment target eNB implements inter-station RRC connection reestablishment through a handover process between the reestablishment target eNB and the reestablishment source eNB. According to the method, the reestablishment target eNB sends the RLF indication message carrying the inter-station RRC connection reestablishment indication to the reestablishment source eNB and requests the reestablishment source eNB to initiate a handover, inter-station RRC connection reestablishment is viewed as a handover scene, the reestablishment target eNB is enabled to acquire UE context information to carry out RRC connection reestablishment, and the call drop rate of the system is reduced.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of vertical method of radio resource control connection reestablishment, Apparatus and system.
Background technology
In order to make user have better susceptibility, reduce cutting off rate, Long Term Evolution (Long Term Evolution, referred to as LTE) system is supported under following several scene, subscriber equipment (User Equipment, referred to as UE) initiation Radio Resource control (RadioResource Control, referred to as RRC) connection re-establishment process.
(1) when UE physical layer detects Radio Link Failure (Radio Link Failure, referred to as RLF).
(2) when LTE intra-system handover (Handover) failure occurs UE.
(3) when UE switches to other wireless access technology (Radio Access Technology, referred to as RAT) failure from LTE.
(4) receiving when the RRC of UE protocol layer the completeness check (Integrity Check) that bottom reports unsuccessfully indicates.
(5) connect reprovision failure when RRC occurs UE.
UE, occurring, after above abnormal conditions, will to carry out community selection course, initiates RRC connection re-establishment process then on selected community.
ENB is receiving after RRC connection re-establishment request (the RRC Connection Reestablishment Request) message that UE sends, by (the Information Element of the cell according to carrying in message, referred to as IE) ue-Identity, find the contextual information of this UE, then complete RRC connection re-establishment process.
In real network operation; due to reasons such as the network planning, parameter configuration or geographical environment complexity; often can there is eNB searches the failure of UE example situation according to the IE ue-Identity in RRC Connection Reestablishment Request message; that is to say; UE has chosen a not eNB for this UE contextual information by community selection course before RRC connection re-establishment, carries out RRC connection re-establishment.In current agreement, do not provide the solution of above-mentioned scene, therefore, eNB can send the RRC connection re-establishment request of RRC connection re-establishment refusal (RRC Connection Reestablishment Reject) message refusal UE, this means that call drop will occur UE.Fig. 1 and Fig. 2 are above-mentioned 2 kinds of abnormal common scenes.As shown in Figure 1, in the time of UE and source eNB generation Radio Link Failure, UE initiates RRC connection re-establishment to target eNB (the not contextual information of this UE).As shown in Figure 2, when UE is switched to target eNB by source eNB, handoff failure for some reason, now, UE initiates RRC connection re-establishment to target eNB (the not contextual information of this UE).In figure, MME is core-network side network element, Mobility Management Entity (Mobility Management Entity), and eNB_A is for re-establishing source eNB, and eNB_B is for re-establishing target side eNB.
Or, scene as shown in Figure 3, UE attempts switching to eNB_B from eNB_A by X2, and in the handover request message that eNB_B receives, do not carry the vertical information list (AdditionalReestabInfoList) of IE additional reconstruction, under this kind of scene, if UE switches unsuccessfully, then to switch target side eNB(be eNB_B) non-Target cell in transmission RRC connection re-establishment request, can refuse to re-establish because eNB_B searches the failure of UE contextual information, UE call drop occurs then.
Summary of the invention
The invention provides a kind of method, Apparatus and system of RRC connection re-establishment, at least to solve in correlation technique, UE carries out RRC connection reconstruction immediately on an eNB who there is no its contextual information, can cause RRC connection re-establishment failure, and the problem of call drop occurs.
According to an aspect of the present invention, a kind of method of RRC connection re-establishment is provided, comprise: re-establish target eNB and send RLF Indication message to re-establishing source eNB, wherein, RLF Indication message carries RRC connection re-establishment instruction between station, between standing, RRC connection re-establishment instruction represents to re-establish RRC connection re-establishment between target eNB support station, and request re-establishes source eNB to re-establishing target eNB initiation switching; Re-establish target eNB and realize RRC connection re-establishment between station by itself and the switching flow that re-establishes between the eNB of source.
Preferably, re-establishing target eNB to re-establishing before source eNB sends RLF Indication message, said method also comprises: re-establish target eNB and receive the RRC connection re-establishment request message from UE; Re-establish target eNB in the case of searching according to RRC connection re-establishment request message the contextual information failure of UE, determine the source that the re-establishes eNB of UE according to RRC connection re-establishment request message.
Preferably, re-establishing target eNB after re-establishing source eNB transmission RLF Indication message, said method also comprises: re-establish source eNB and receive RLF Indication message; Re-establishing source eNB initiates to switch to re-establishing target eNB according to RRC connection re-establishment instruction between the station of carrying in RLF Indication message.
Preferably, the above-mentioned target eNB that re-establishes comprises: between standing, switch target side eNB, or and re-establish other eNB that there is no handoff relation between the eNB of source.
Preferably, re-establishing source eNB is that X2 switches to the switching that re-establishes target eNB initiation.
According to another aspect of the present invention, a kind of device of RRC connection re-establishment is provided, be applied to eNB, comprise: sending module, for sending RLF Indication message to re-establishing source eNB, wherein, RLF Indication message carries RRC connection re-establishment instruction between station, between standing, RRC connection re-establishment instruction represents to re-establish RRC connection re-establishment between target eNB support station, and request re-establishes source eNB to re-establishing target eNB initiation switching; Re-establish module, for realizing RRC connection re-establishment between station by the switching flow that re-establishes target eNB and re-establish between the eNB of source.
Preferably, said apparatus also comprises: the first receiver module, for receiving the RRC connection re-establishment request message from UE; Determination module, in the case of searching according to RRC connection re-establishment request message the contextual information failure of UE, determines the source that the re-establishes eNB of UE according to RRC connection re-establishment request message.
Preferably, said apparatus also comprises: the second receiver module, for receiving from the RLF Indication message that re-establishes target eNB; Initiation module, initiates to switch to re-establishing target eNB for RRC connection re-establishment instruction between the station of carrying according to RLF Indication message.
Preferably, re-establish target eNB and comprise: between standing, switch target side eNB, or and re-establish other eNB that there is no handoff relation between the eNB of source.
Preferably, re-establishing source eNB is that X2 switches to the switching that re-establishes target eNB initiation.
According to a further aspect of the invention, a kind of system of RRC connection re-establishment is provided, comprise: UE, re-establish source eNB and re-establish target eNB, wherein, re-establishing source eNB and re-establish target eNB and include above-mentioned any device of RRC connection re-establishment.
By the present invention, re-establish target eNB and send to re-establishing source eNB the RLF Indication message that carries RRC connection re-establishment instruction between station, request re-establishes source eNB and initiates to switch, RRC connection re-establishment between station is considered as to a kind of scene of switching, make to re-establish target eNB and can obtain the contextual information of UE, and carry out RRC connection re-establishment, and reduce system cutting off rate, also greatly promote user's susceptibility.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the scene schematic diagram one that RRC connection re-establishment between eNB occurs according to the UE of correlation technique;
Fig. 2 is the scene schematic diagram two that RRC connection re-establishment between eNB occurs according to the UE of correlation technique;
Fig. 3 is the scene schematic diagram three that RRC connection re-establishment between eNB occurs according to the UE of correlation technique;
Fig. 4 is according to the flow chart of the method for the RRC connection re-establishment of the embodiment of the present invention;
Fig. 5 is according to the structured flowchart of the device of the RRC connection re-establishment of the embodiment of the present invention;
Fig. 6 is according to the structured flowchart of the system of the RRC connection re-establishment of the embodiment of the present invention;
Fig. 7 is according to the flow chart of the method for the RRC connection re-establishment of the preferred embodiment of the present invention one;
Fig. 8 is according to the flow chart of the method for the RRC connection re-establishment of the preferred embodiment of the present invention two.
Embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
The embodiment of the present invention provides a kind of method of RRC connection re-establishment, and Fig. 4 is according to the flow chart of the method for the RRC connection re-establishment of the embodiment of the present invention, and as shown in Figure 4, the method comprises that following step S402 is to step S404.
Step S402, re-establish target eNB and send RLF Indication message to re-establishing source eNB, wherein, RLF Indication message carries RRC connection re-establishment instruction between station, between standing, RRC connection re-establishment instruction represents to re-establish RRC connection re-establishment between target eNB support station, and request re-establishes source eNB to re-establishing target eNB initiation switching.
Step S404, re-establishes target eNB and realizes RRC connection re-establishment between station by itself and the switching flow that re-establishes between the eNB of source.
In correlation technique, UE carries out RRC connection reconstruction immediately on an eNB who there is no its contextual information, can cause RRC connection re-establishment failure, and call drop occurs.Pass through above-mentioned steps, re-establish target eNB and send to re-establishing source eNB the RLF Indication message that carries RRC connection re-establishment instruction between station, request re-establishes source eNB and initiates to switch, RRC connection re-establishment between station is considered as to a kind of scene of switching, make to re-establish target eNB and can obtain the contextual information of UE, and carry out RRC connection re-establishment, and reduce system cutting off rate, also greatly promote user's susceptibility.
Preferably, re-establishing source eNB is that X2 switches to the switching that re-establishes target eNB initiation.In practical application, between standing, RRC connection re-establishment instruction can be increased in X2 interface standard message RLF INDICATION, the present invention is based on X2 handoff procedure and realizes between the eNB of UE and re-establishing, and regards a kind of special X2 handoff procedure as by re-establishing between eNB.
In a preferred implementation, the application scenarios of above-mentioned RRC connection reconstruction cube method is provided, as follows: re-establishing target eNB to re-establishing before source eNB sends the RLF Indication message that carries the instruction of RRC connection re-establishment between station, to re-establish target eNB and receive the RRC connection re-establishment request message from UE; Re-establish target eNB in the case of searching according to RRC connection re-establishment request message the contextual information failure of UE, determine the source that the re-establishes eNB of UE according to RRC connection re-establishment request message.In this preferred implementation, the eNB(that UE selects re-establishes target eNB) according to the IE ue-Identity carrying in RRC connection re-establishment request message, search UE contextual information and unsuccessfully cause RRC connection re-establishment failure, under this scene, re-establish target eNB and need to determine the source that the re-establishes eNB of this UE, request re-establishes source eNB switches to described re-establishing between target eNB initiator, to carry out RRC connection re-establishment.
For the source that the re-establishes eNB of how to confirm UE, can realize by following preferred implementation: the source that the re-establishes eNB that re-establishes target eNB and determine according to the Physical Cell Identifier in the IE ue-Identity in RRC connection re-establishment request message (Physical Cell Identity, referred to as PCI) UE.
Preferably, re-establishing target eNB after re-establishing source eNB transmission RLF Indication message, the operation that re-establishes source eNB is as follows: re-establish source eNB and receive RLF Indication message; Re-establishing source eNB initiates to switch to re-establishing target eNB according to RRC connection re-establishment instruction between the station of carrying in RLF Indication message.
In a preferred embodiment, re-establishing target eNB can comprise: between standing, switch target side eNB, or and re-establish other eNB that there is no handoff relation between the eNB of source.Schematically illustrate below by three kinds of scenes.
(1) UE switches to target eNB from source eNB, causes for some reason handoff failure, and now, UE re-establishes to target eNB from source eNB,, under this scene, re-establishes target eNB and switches exactly target side eNB.
(2) UE moves between two eNB that there is no a handoff relation, failure for some reason (for example, parameter configuration not to), now, UE re-establishes to target eNB from source eNB, and, under this scene, re-establishing target eNB is the eNB that there is no handoff relation with the source eNB of re-establishing.
(3) UE is from eNB(A) switch to eNB(B), handoff failure, UE is from eNB(A) re-establish to eNB(C), under this scene, re-establishing target eNB is the eNB that there is no handoff relation with the source eNB of re-establishing.
The embodiment of the present invention also provides a kind of device of RRC connection re-establishment, is applied to eNB, and this device can be for realizing the method for above-mentioned RRC connection re-establishment.Fig. 5 is according to the structured flowchart of the device of the RRC connection re-establishment of the embodiment of the present invention, and as shown in Figure 5, this device comprises sending module 52 and re-establishes module 54.Below its structure is described in detail.
Sending module 52, for sending RLF Indication message to re-establishing source eNB, wherein, RLF Indication message carries RRC connection re-establishment instruction between station, between standing, RRC connection re-establishment instruction represents to re-establish RRC connection re-establishment between target eNB support station, and request re-establishes source eNB to re-establishing target eNB initiation switching; Re-establish module 54, be coupled to sending module 52, for realizing RRC connection re-establishment between station by the switching flow that re-establishes target eNB and re-establish between the eNB of source.
Said apparatus also comprises: the first receiver module, for receiving the RRC connection re-establishment request message from UE; Determination module, is coupled to the first receiver module, in the case of searching according to RRC connection re-establishment request message the contextual information failure of UE, determines the source that the re-establishes eNB of UE according to RRC connection re-establishment request message.
Said apparatus also comprises: the second receiver module, for receiving from the RLF Indication message that re-establishes target eNB; Initiation module, initiates to switch to re-establishing target eNB for RRC connection re-establishment instruction between the station of carrying according to RLF Indication message.
Preferably, re-establish target eNB and comprise: between standing, switch target side eNB, or and re-establish other eNB that there is no handoff relation between the eNB of source.
Preferably, re-establishing source eNB is that X2 switches to the switching that re-establishes target eNB initiation.
The embodiment of the present invention also provides a kind of system of RRC connection re-establishment, and this system can be for realizing the method for above-mentioned RRC connection re-establishment.Fig. 6 is according to the structured flowchart of the system of the RRC connection re-establishment of the embodiment of the present invention, as shown in Figure 6, this system comprises UE 62, re-establishes source eNB 64 and re-establishes target eNB 66, wherein, re-establish source eNB 64 and re-establish target eNB 66 device that includes above-mentioned any RRC connection re-establishment.
It should be noted that, the device of the RRC connection re-establishment that device is described in embodiment, system are corresponding to above-mentioned embodiment of the method, and its concrete implementation procedure had been carried out detailed description in embodiment of the method.
In order to make technical scheme of the present invention and implementation method clearer, below in conjunction with preferred embodiment, its implementation procedure is described in detail.For ease of narration with understand, hereinafter represent to re-establish source eNB with eNB_A, represent to re-establish target side eNB with eNB_B.
Preferred embodiment one
In this preferred embodiment, eNB_B is in the case of searching the failure of UE contextual information according to the IE ue-Identity in RRC connection re-establishment request (RRC Connection ReestablishmentRequest) message, searches this UE may come from around which in abutting connection with eNB_A according to the PCI in IE ue-Identity.
ENB_B sends Radio Link Failure Indication message (carrying RRC connection re-establishment instruction (Inter-eNB RrcConnection Reestablishment Indicatior) between station) to eNB_A.
X2 handoff procedure between eNB_A initiation and eNB_B, thus realize: and UE contextual information is passed to eNB_B by (1); (2) the business datum forward based on X2 link (Data Forwarding); (3) notice core net (Evolved Packet Core, referred to as EPC) completes the service path switching of UE.
ENB_B sends the UE contextual information carrying in X2 handover request (Handover Request) message according to eNB_A, complete the RRC connection re-establishment process that UE initiates.
Fig. 7 is according to the flow chart of the method for the RRC connection re-establishment of the preferred embodiment of the present invention one, and as shown in Figure 7, the method comprises that following step S702 is to step S708.
Step S702, UE sends RRC connection re-establishment request to eNB_B.
Step S704, eNB_B sends between eNB and re-establishes instruction to eNB_A.
Step S706, X2 handoff procedure.X2 handoff procedure is to be mainly switched to eNB_B by X2 interface from eNB_A, and discharges the contextual information of UE at eNB_A.
Step S708, RRC connection re-establishment process.RRC connection re-establishment process is mainly that UE initiates RRC connection re-establishment, the configuration of the line correlation of going forward side by side.
In TS36.423 agreement, do not define RRC connection re-establishment instruction between corresponding IE station, in this preferred embodiment, provided a kind of implementation method, expand the reserved IE in TS36.423 agreement Plays message RLF instruction (being RLF Indication).The RLF Indication message definition that concrete methods of realizing is as shown in table 1.
Table 1RLF Indication message definition table
Method shown in Fig. 7 specifically comprises:
Re-establish RRC connection re-establishment request (the RRC Connection ReestablishmentRequest) message that target side eNB receives that UE sends, search the failure of UE contextual information according to the IE ue-Identity in message, then according to the PCI in IE ue-Identity its maintenance in abutting connection with searching the possible source eNB that re-establishes in eNB information, and send the RLF Indication message that carries RRC connection re-establishment instruction between station to re-establishing source eNB.
Re-establish source eNB receives after the RLF Indication message that carries RRC connection re-establishment instruction (Inter-eNBConnection Reestablishment Indicator) between IE eNB on X2 interface, organize handover request (HandoverRequest) message, and send to and re-establish target side eNB by X2 interface.
Re-establish target side eNB receives after handover request (Handover Request) message on X2 interface, according to the UE contextual information carrying in message, organize and send RRC connection re-establishment (RRC Connection Reestablishment) message to UE.
UE is receiving after RRC Connection Reestablishment message, completes the reconstruction of SRB and the activation of Access Layer (AccessStratum, referred to as AS) safety.UE organizes and sends RRC connection re-establishment and completes (RRC ConnectionReestablishment Complete) message to re-establishing target side eNB.
Re-establish target side eNB and receiving after RRC Connection Reestablishment Complete message, organize Handover Request Acknowledge (Handover Request Acknowledge) message, and send to and re-establish source eNB by X2 interface.In Handover Request Acknowledge message, eNB can be by filling in IE down link (Down Link, referred to as DL) forward (Forwarding) informs and re-establishes source eNB, up-downgoing data forwarding (Data Forwarding) destination address of UE related service.
Re-establish target side eNB organize and send RRC connect reshuffle (RRC Connection Reconfiguration) message to UE, UE completes Data Radio Bearer (Data Radio Bearer, referred to as DRB) reconstruction after, respond RRC and connect and reshuffled (RRC Connection Reconfiguration Complete) message to re-establishing target side eNB.
Re-establish source eNB and organize SN state transmission (SN Status Transfer) message, and send to and re-establish target side eNB by X2 interface.In message, carry UE related service before re-establishing, the information such as PDCP layer up-downgoing sequence number.
Re-establish target side eNB receive RRC connect reshuffled after (RRC Connection ReconfigurationComplete) message, tissue transmit path conversion request (Path Switch Request) message are to MME, and request core net tangentially re-establishes target side eNB by the GTP tunnel end points of the related service of UE from re-establishing source eNB.MME Response Path conversion request confirms that (Path Switch RequestAcknowledge) message is to re-establishing target side eNB.
Re-establish target side eNB and organize UE context to discharge (UE Context Release) message, and send to and re-establish source eNB by X2 interface, notify it to discharge UE context.
Preferred embodiment two
This preferred embodiment describes as an example of the scene shown in Fig. 1 example.As shown in Figure 1, the UE that built vertical RRC connects on eNB_A moves to the service area of eNB_B, because of certain reason (for example, handoff parameter unreasonable allocation causes switching evening) cause network not initiate in time handoff procedure, UE occurs after Radio Link Failure on eNB_A, initiates RRC connection re-establishment request in the community of eNB_B.ENB_A is called and re-establishes source eNB, and eNB_B is called and re-establishes target side eNB.
Fig. 8 is according to the flow chart of the method for the RRC connection re-establishment of the preferred embodiment of the present invention two, as shown in Figure 8, comprises that following step S802 is to step S824.
Step S802, UE re-establishes source eNB at eNB_A() the upper Radio Link Failure that occurs, by community selection course, be chosen in eNB_B(and re-establish target side eNB) community in initiation RRC connection re-establishment request.Re-establish RRC connection re-establishment request (the RRC Connection Reestablishment Request) message that target side eNB receives that UE sends, judge that according to IE ue-Identity in message UE may come from adjoining base station eNB_A.
Step S804, re-establish target side eNB and send RLF instruction (RLF Indication) message to re-establishing source eNB by X2 interface, in message, between IE station, connection re-establishment instruction (Inter-eNB Reestablishment Indicator) is set to " true ".Re-establish source eNB and receive RLF Indication message, find corresponding UE contextual information according to the UE identification information carrying in message.
Step S806, re-establish source eNB according to the value of IE Inter-eNB ReestablishmentIndicator in RLF Indication message, judge and re-establish RRC connection re-establishment function between target side eNB support eNB, and send handover request (Handover Request) message to re-establishing target side eNB by X2 interface.
Step S808, re-establishes target side eNB according to the UE contextual information carrying in Handover Request message, sends RRC connection re-establishment (RRC Connection Reestablishment) message to UE.
Step S810, UE completes SRB and rebuilds and the safe reactivation of Access Layer, sends RRC connection re-establishment and completes (RRCConnection Reestablishment Complete) message to re-establishing target side eNB.
Step S812, re-establishes target side eNB and sends Handover Request Acknowledge (Handover RequestAcknowledge) message to re-establishing source eNB by X2 interface.
Step S814, re-establishes target side eNB transmission RRC connection and reshuffles (RRC Connection Reconfiguration) message to UE.UE completes the reconstruction of DRB.
Step S816, re-establishes source eNB and sends SN state transmission (SN Status Transfer) message to re-establishing target side eNB by X2 interface.In message, carry the information such as UE related service PDCP layer up-downgoing SN, be convenient to re-establish target side eNB and recover UE business.
Step S818, re-establishes RRC that target side eNB receives that UE sends and connects and reshuffled (RRC ConnectionReconfiguration Complete) message.
Step S820, re-establishes target side eNB transmit path conversion request (Path Switch Request) message to MME, and the switching of notice core net tangentially re-establishes target side eNB by the descending GTP tunnel end points of UE related service from re-establishing source eNB.
Step S822, MME reverse-path conversion request confirms that (Path Switch Request Acknowledge) message is to re-establishing target side eNB.
Step S824, re-establishes target side eNB and sends UE context release (UE Context Release) message to re-establishing source eNB by X2 interface, re-establishes source eNB and discharges UE contextual information.
It should be noted that, can in the computer system such as one group of computer executable instructions, carry out in the step shown in the flow chart of accompanying drawing, and, although there is shown logical order in flow process, but in some cases, can carry out shown or described step with the order being different from herein.
In sum, method, the Apparatus and system of the RRC connection re-establishment providing according to the abovementioned embodiments of the present invention, pass through above-mentioned steps, re-establish target eNB and send to re-establishing source eNB the RLF Indication message that carries RRC connection re-establishment instruction between station, request re-establishes source eNB and initiates to switch, RRC connection re-establishment between station is considered as to a kind of scene of switching, make to re-establish target eNB and can obtain the contextual information of UE, and carry out RRC connection re-establishment, reduce system cutting off rate, promote systematic function, also greatly promoted user's susceptibility.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (11)
1. a method for radio resource control RRC connection re-establishment, is characterized in that comprising:
The Node B eNB that re-establishes target evolution sends Radio Link Failure RLF Indication message to re-establishing source eNB, wherein, described RLF Indication message carries RRC connection re-establishment instruction between station, between described station, RRC connection re-establishment instruction re-establishes RRC connection re-establishment between target eNB support station described in representing, and described in request, re-establishes source eNB and initiate to switch to the described target eNB that re-establishes;
Described re-establish target eNB by itself and described in the switching flow that re-establishes between the eNB of source realize RRC connection re-establishment between station.
2. method according to claim 1, is characterized in that, is re-establishing target eNB to re-establishing before source eNB sends RLF Indication message, and described method also comprises:
The described target eNB that re-establishes receives the RRC connection re-establishment request message from user equipment (UE);
The described target eNB that re-establishes, in the case of searching the contextual information failure of described UE according to described RRC connection re-establishment request message, is determined the source that the re-establishes eNB of described UE according to described RRC connection re-establishment request message.
3. method according to claim 1, is characterized in that, is re-establishing target eNB after re-establishing source eNB transmission RLF Indication message, and described method also comprises:
The described source eNB that re-establishes receives described RLF Indication message;
The described source eNB that re-establishes initiates to switch to the described target eNB that re-establishes according to RRC connection re-establishment instruction between the described station of carrying in described RLF Indication message.
4. according to the method in any one of claims 1 to 3, it is characterized in that, described in re-establish target eNB and comprise: between standing, switch target side eNB, or and described other eNB that there is no handoff relation between the eNB of source that re-establishes.
5. according to the method in any one of claims 1 to 3, it is characterized in that, described in re-establish source eNB to described re-establish target eNB initiate switching be X2 switch.
6. a device for radio resource control RRC connection re-establishment, is applied to the Node B eNB of evolution, it is characterized in that comprising:
Sending module, for sending Radio Link Failure RLF Indication message to re-establishing source eNB, wherein, described RLF Indication message carries RRC connection re-establishment instruction between station, between described station, RRC connection re-establishment instruction represents to re-establish RRC connection re-establishment between target eNB support station, and described in request, re-establishes source eNB and initiate to switch to the described target eNB that re-establishes;
Re-establish module, for by described re-establish target eNB and described in the switching flow that re-establishes between the eNB of source realize RRC connection re-establishment between station.
7. device according to claim 6, is characterized in that, described device also comprises:
The first receiver module, for receiving the RRC connection re-establishment request message from user equipment (UE);
Determination module, in the case of searching the contextual information failure of described UE according to described RRC connection re-establishment request message, determines the source that the re-establishes eNB of described UE according to described RRC connection re-establishment request message.
8. device according to claim 6, is characterized in that, described device also comprises:
The second receiver module, for receiving from the described RLF Indication message that re-establishes target eNB;
Initiation module, initiates to switch to the described target eNB that re-establishes for RRC connection re-establishment instruction between the described station of carrying according to described RLF Indication message.
9. according to the device described in any one in claim 6 to 8, it is characterized in that, described in re-establish target eNB and comprise: between standing, switch target side eNB, or and described other eNB that there is no handoff relation between the eNB of source that re-establishes.
10. according to the device described in any one in claim 6 to 8, it is characterized in that, described in re-establish source eNB to described re-establish target eNB initiate switching be X2 switch.
The system of 11. 1 kinds of radio resource control RRC connection re-establishments, it is characterized in that, comprise: user equipment (UE), re-establish the Node B eNB of source evolution and re-establish target eNB, wherein, described in, re-establish source eNB and described in re-establish target eNB and include the device of the RRC connection re-establishment described in any one in claim 6 to 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210475703.0A CN103841608A (en) | 2012-11-21 | 2012-11-21 | Method, device and system for radio resource control connection reestablishment |
| DE202013002499U DE202013002499U1 (en) | 2012-11-21 | 2013-03-14 | Radio resource control connection recovery device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210475703.0A CN103841608A (en) | 2012-11-21 | 2012-11-21 | Method, device and system for radio resource control connection reestablishment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103841608A true CN103841608A (en) | 2014-06-04 |
Family
ID=48145863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210475703.0A Pending CN103841608A (en) | 2012-11-21 | 2012-11-21 | Method, device and system for radio resource control connection reestablishment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103841608A (en) |
| DE (1) | DE202013002499U1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019136637A1 (en) * | 2018-01-10 | 2019-07-18 | Lenovo (Beijing) Limited | Selecting a base unit in response to a handover condition being triggered |
| WO2019192514A1 (en) * | 2018-04-04 | 2019-10-10 | 维沃移动通信有限公司 | Connection reestablishment method and relevant device |
| CN111316701A (en) * | 2017-11-17 | 2020-06-19 | 中兴通讯股份有限公司 | Handover-based connection recovery techniques |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100234027A1 (en) * | 2009-03-16 | 2010-09-16 | Samsung Electronics Co. Ltd. | Method and system for improving call drop caused by radio link failure in mobile communication system |
| CN101848553A (en) * | 2010-04-28 | 2010-09-29 | 新邮通信设备有限公司 | Reestablishing method of RRC (Radio Resource Control) connection in LTE (Long Term Evolution) system and base station |
| CN101986761A (en) * | 2010-11-01 | 2011-03-16 | 新邮通信设备有限公司 | Method for keeping specific service of user after cell switching failure and user equipment (UE) |
| CN102348217A (en) * | 2010-07-28 | 2012-02-08 | 中兴通讯股份有限公司 | Method for determining object network element in switching process and system thereof |
| CN102480796A (en) * | 2010-11-23 | 2012-05-30 | 中兴通讯股份有限公司 | Method and system for realizing connection reestablish of radio resource control protocol |
-
2012
- 2012-11-21 CN CN201210475703.0A patent/CN103841608A/en active Pending
-
2013
- 2013-03-14 DE DE202013002499U patent/DE202013002499U1/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100234027A1 (en) * | 2009-03-16 | 2010-09-16 | Samsung Electronics Co. Ltd. | Method and system for improving call drop caused by radio link failure in mobile communication system |
| CN101848553A (en) * | 2010-04-28 | 2010-09-29 | 新邮通信设备有限公司 | Reestablishing method of RRC (Radio Resource Control) connection in LTE (Long Term Evolution) system and base station |
| CN102348217A (en) * | 2010-07-28 | 2012-02-08 | 中兴通讯股份有限公司 | Method for determining object network element in switching process and system thereof |
| CN101986761A (en) * | 2010-11-01 | 2011-03-16 | 新邮通信设备有限公司 | Method for keeping specific service of user after cell switching failure and user equipment (UE) |
| CN102480796A (en) * | 2010-11-23 | 2012-05-30 | 中兴通讯股份有限公司 | Method and system for realizing connection reestablish of radio resource control protocol |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111316701A (en) * | 2017-11-17 | 2020-06-19 | 中兴通讯股份有限公司 | Handover-based connection recovery techniques |
| US11343738B2 (en) | 2017-11-17 | 2022-05-24 | Zte Corporation | Handover-based connection resume technique |
| CN111316701B (en) * | 2017-11-17 | 2022-07-15 | 中兴通讯股份有限公司 | Handover-based connection recovery techniques |
| WO2019136637A1 (en) * | 2018-01-10 | 2019-07-18 | Lenovo (Beijing) Limited | Selecting a base unit in response to a handover condition being triggered |
| CN111801962A (en) * | 2018-01-10 | 2020-10-20 | 联想(北京)有限公司 | Triggered selection of base station unit in response to handover condition |
| CN114205880A (en) * | 2018-01-10 | 2022-03-18 | 联想(北京)有限公司 | Triggered selection of base station unit in response to handover condition |
| US11595863B2 (en) | 2018-01-10 | 2023-02-28 | Lenovo (Beijing) Limited | Selecting a base unit in response to a handover condition being triggered |
| CN114205880B (en) * | 2018-01-10 | 2023-09-01 | 联想(北京)有限公司 | Triggered selection of base station unit in response to handoff condition |
| WO2019192514A1 (en) * | 2018-04-04 | 2019-10-10 | 维沃移动通信有限公司 | Connection reestablishment method and relevant device |
| US11690122B2 (en) | 2018-04-04 | 2023-06-27 | Vivo Mobile Communication Co., Ltd. | Connection re-establishment method and related device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE202013002499U1 (en) | 2013-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11805454B2 (en) | Method and apparatus for mobility management | |
| CN107734573B (en) | Switching method, base station and communication system | |
| CN107318176B (en) | Recovery identifier obtaining and sending method and device, UE and access network equipment | |
| US20190335365A1 (en) | Network Handover Method and Related Device | |
| US9961707B2 (en) | Terminal multiple connection management method, device and system | |
| CN106162765B (en) | Data transmission method and device | |
| CN110636561B (en) | Information transmission method and device, storage medium and electronic device | |
| US9642045B2 (en) | Method and device for releasing context-related resource of user equipment | |
| CN104349505A (en) | Method of radio bearer establishment in dual connectivity | |
| CN101848553B (en) | Reestablishing method of RRC (Radio Resource Control) connection in LTE (Long Term Evolution) system and base station | |
| US10736012B2 (en) | Method and device for providing circuit switching service in wireless communication system | |
| CN103906152A (en) | Method for supporting quick UE restoration | |
| CN102215545B (en) | Method and device for re-establishing return link in relay network | |
| EP3734870B1 (en) | Notification methods and base stations for execution of pdcp data recovery | |
| CN108934049A (en) | Communication handover method and device | |
| CN102404809A (en) | Method and system for transferring data transmission channel | |
| CN111565424A (en) | Method, device and storage medium for processing connection failure in dual-connection system | |
| EP4084573A1 (en) | Network connection reestablishment method and device, storage medium, and electronic device | |
| CN106604337A (en) | RRC connection rebuilding method and system | |
| CN106792947A (en) | A kind of RRC connection reconstructions cube method and base station | |
| CN102316509A (en) | Method and system for reporting correlation measurement information of radio link failure | |
| CN103841608A (en) | Method, device and system for radio resource control connection reestablishment | |
| CN101272607A (en) | Method for indicating data transmission completeness | |
| JP7260640B2 (en) | Data transfer method, device, master base station and slave base station | |
| EP2429255A1 (en) | Method, system and evolved node b for implementing service release |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140604 |