CN101959209B - Synchronization method and system for partial failure handling - Google Patents
Synchronization method and system for partial failure handling Download PDFInfo
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Abstract
The invention discloses a synchronization method for partial failure handling, comprising the following steps that: when user equipment (UE) moves to a new mobility management entity (MME), the new MME transmits self partial failure handling (PFH) capability information to an old MME in the process of transferring a context; and the old MME initiates the associated synchronous operation of the PFH to a serving gateway (S-GW) and a packet data network gateway (P-GW) while determining that the new MME does not support the PFH function according to the received PFH capability information. The invention also discloses a synchronization system for partial fault handling, so that the S-GW or P-GW can synchronize the PDN (Public Data Network) connection associated with the complete packet data network (PDN) connection integration of ID (Identity) (FQ-CSID (Fully Qualified-connection Set Identity)), and further PDN connection resources corresponding to the S-GW or P-GW can be correctly released.
Description
Technical field
The present invention relates to the troubleshooting technology in the communications field, relate in particular to a kind of synchronous method and system of partial fault processing.
Background technology
Along with global microwave access intercommunication (WiMax, World Interoperability for MicrowaveAccess) sudden emergence of technology, 3-G (Generation Three mobile communication system) will keep its competitiveness at moving communicating field, its network performance be must improve, and networking and operation cost reduced.Therefore, third generation partner program (3GPP, 3rd Generation Partnership Pr0ject) standardization effort group, just be devoted at present to study packet switch core net (PS Core, Packet Switch Core) and the evolution of global system for mobile communications wireless access network (UTRAN, Universal Mobile Telecommunication System Radio AccessNetwork).This research topic is called System Architecture Evolution (SAE, System ArchitectureEvolution), object is the Packet Based Network (EPC that makes evolution, Evolved Packet Core) higher transmission rate can be provided, shorter transmission delay, optimize grouping, and the UTRAN (E-UTRAN of support evolution, Evolved UTRAN), mobile management between the access network of UTRAN, WLAN (wireless local area network) (WLAN, Wireless Local Area Network) and other non-3GPP.
The framework of SAE as shown in Figure 1 at present, wherein, the network element comprising in the wireless access network of evolution (E-RAN, EvolvedRadio Access Network) is enode b (eNodeB, Evolved NodeB), be used to user's access that Radio Resource is provided; Packet Data Network (PDN, Packet Data Network) is the network that business is provided for user; EPC provides lower delay, and allows more wireless access system access, and it comprises following network element:
Mobile management entity (MME, Mobility Management Entity): chain of command functional entity, the server of interim storage user data, be in charge of and store subscriber equipment (UE, User Equipment) context (such as UE/ user ID, mobility management states, user security parameters etc.), for user assignment temporary mark, in the time that UE quarters at this tracing area or this network, be responsible for this user to carry out authentication; Process all non-access layer informations between MME and UE; Trigger the paging at SAE.MME is the mobile management entity of SAE system, at universal mobile telecommunications system (UMTS, Universal MobileTelecommunications System) in, mobile management entity is service universal grouping wireless service (GPRS, General Packet Radio Service) support node (SGSN, Serving GPRS Support Node).
Gateway (S-GW, Serving Gateway) is a user entity, is responsible for user face data route processing, the downlink data of the UE of termination in idle (ECM IDLE) state.SAE carrying (bearer) context of management and storage UE, such as IP bearer service parameter and network internal routing iinformation etc.S-GW is the anchor point of 3GPP internal system user face, and a user can only have a S-GW a moment.
Packet data network gateway (P-GW, PDN Gateway), is the gateway of being responsible for UE access PDN, and distributing user IP address, is also the mobility anchor point of 3GPP and non-3GPP connecting system, and the function of P-GW also comprises that strategy is implemented, charging support.User can access multiple P-GW at synchronization.Strategy is implemented functional entity (PCEF, Policy and Charging Enforcement Function) with charging and is also arranged in P-GW.
Strategy is responsible for providing policy control and charging regulation to PCEF with charging regulation function entity (PCRF, Policy and Charging Rules Function).
Home subscriber server (HSS, Home Subscriber Server) permanent storage user contracting data, the content of HSS storage comprises the international mobile subscriber identity (IMSI, International MobileSubscriber Identification) of UE, the IP address of P-GW.
Physically, S-GW and P-GW may unify, and EPC system user veil unit comprises S-GW and P-GW.
Current EPS system has been introduced partial fault processing (PFH, Partial Failure Handling) function, partial fault is processed initially access exactly (Attach) or the management of being moved property during at UE, MME, S-GW need to connect the PDN creating for UE to be associated to each autocorrelative complete PDN articulation set ID (FQ-CSID, Fully Qualified PDN Connection Set Identity) upper, and the FQ-CISD of each auto correlation is sent to P-GW.As shown in Figure 2, this processing mainly comprises the following steps:
Step 201, UE sends Attach request to MME, and request, at E-UTRAN network registry, is carried IMSI or the old global unique temporary identity (GUTI, Globally UniqueTemporary Identity) of UE in request message.
Step 202, MME sends location update request message to HSS, carries the IMSI of UE in this request message.
Step 203, HSS sends position to MME and upgrades acknowledge message, carries the user data of UE in this acknowledge message.
Step 204, after the user data of MME acquisition UE, send and set up conversation request message to S-GW, default bearing is set up in request, in request message, carry the control plane address of P-GW, the service quality (QoS, Quality of Service) of default bearing, total maximum rate (APN-AMBR of access point, Access PointName-Aggregate Maximum Bearer Rate), bearing identification (Bearer ID); If MME supports PFH function, need the bearer ID of default bearing to be associated to MME-FQ-CSID, and MME-FQ-CSID is passed to S-GW.
Step 205, S-GW sends and sets up conversation request message to P-GW, in request message, carry user's face address and the user's face Tunnel End Point Identifier (TEID of S-GW, Tunneling Endpoint Identity), the control plane address of P-GW, QoS, the APN-AMBR of default bearing, Bearer ID; If S-GW supports PFH function, need the bearer ID of default bearing to be associated to S-GW-FQ-CSID, and send to P-GW together with the MME-FQ-CSID receiving.
Step 206, P-GW sends and sets up conversational response message to S-GW, carries the TEID of P-GW chain of command in response message, user's face address of P-GW and TEID, Bearer ID, uplink service stream masterplate (TFT, Traffic Flow Template); If P-GW supports PFH function, need the bearerID of default bearing to be associated to P-GW-FQ-CSID, and associated P-GW-FQ-CSID is sent to S-GW.
Step 207, S-GW sends and sets up conversational response message to MME, carries the TEID of S-GW chain of command, user's face address of S-GW and TEID, Bearer ID, up TFT, S-GW-FQ-CSID, P-GW-FQ-CSID in response message.
Step 208, MME sends Attach to eNodeB and accepts message, carries GUTI, tracking area list (TA list, Tracking Area list), Bearer ID, session management configuration information unit in this message; Session management configuration information unit comprises up TFT and carrying QoS.
Step 209, eNodeB sends RRC to UE and connects reconfiguration message, carry radio bearer ID, and eNodeB accepts message by Attach and sends to together UE in this message.
Step 210, UE sends RRC connection to eNodeB and has reshuffled message, carries carrying ID in this message.
Step 211, eNodeB sends Attach to MME and completes message.
Step 212, MME sends and upgrades bearing request message to S-GW, carries user's face address and the TEID of eNodeB in request message.
Step 213, S-GW sends and upgrades bearing response message to MME.
When the residing area of coverage of UE changes, and find to have entered into a unregistered TA list region by listening broadcast channel, UE meeting initiating updating of tracking area (TAU, Tracking Area Update) operation, (MME, the S-GW, the P-GW that suppose the original access of UE support PFH function) as shown in Figure 3, move to for the UE being registered under the E-UTRAN area of coverage TAU flow process causing under the UTRAN area of coverage, mainly comprise the following steps:
Step 301, UE moves to new TAlist region, sends tracing section updating request to new MME, and request is registered in new region, and in request message, carrying old MME is the GUTI that UE distributes.
Step 302, new MME finds old MME according to GUTI mark, sends context request signaling and carries out context acquisition process.
Step 303, user's mobile management and beared information are sent to new MME by old MME, carries out context response.
Step 304, confirms to context after new MME receives context response information, context is confirmed.
Step 305, new MME is to the request of S-GW starting update load bearing, in request message, carry source GPRS tunnel protocol control (GTP-C, GPRS Tunnel Protocol-Control Plane) Tunnel Identifier and object GTP-C Tunnel Identifier, S-GW is the binding relationship of new bearer more; If new MME supports PFH function, need the Bearer ID of default bearing to be associated to MME-FQ-CSID and to be sent to S-GW.
Step 306, S-GW sends more new bearer request to P-GW, and the parameters such as the positional information of the address information of S-GW, tunnel identification information, UE are sent to P-GW; S-GW need to be sent to P-GW by the new associated MME-FQ-CSID obtaining.
Step 307, P-GW upgrades the context of oneself and returns to more new bearer response message to S-GW.
Step 308, S-GW returns to more new bearer response to new MME, and object GTP-C Tunnel Identifier, the address of self and address and the tunnel information etc. of P-GW that S-GW is specified bring new MME.S-GW also needs the S-GW-FQ-CSID of self storage, and P-GW-FQ-CSID is sent to new MME.
Step 309, new MME notifies the change of HSS registered location by location update message.
Step 310, HSS sends canceling position signaling to old MME, only safeguards the registration of new MME.
Step 311, old MME cancels response to HSS home position.
Step 312, HSS upgrades and confirms the position of new MME.
Step 313, effective in current tracking area if new MME confirms UE, send tracing section updating to UE and accept message.
Step 314, if new MME is that UE has distributed a new GUTI mark by TAU flow process, UE can returning tracking district have upgraded message and has confirmed to new MME so.
Can find out according to above-mentioned existing procedure, upgrade MME-FQ-CSID by the more new bearer request notice S-GW of step 305 at present, S-GW sends to P-GW by step 306 by new MME-FQ-CSID.When S-GW, P-GW obtain new associated MME-FQ-CSID, need to replace original MME-CSID with new MME-FQ-CSID, in order to avoid correct releasing resource when follow-up generation partial fault.If new MME/SGSN does not support PFH function, S-GW or P-GW can not upgrade corresponding associated FQ-CSID so, connect thereby can cause S-GW or P-GW can not correctly discharge the corresponding PDN of corresponding FQ-CSID.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of synchronous method and system of partial fault processing, to realize in the time that new MME does not support PFH function, can correctly discharge S-GW or the corresponding PDN connection resource of P-GW.
For achieving the above object, technical scheme of the present invention is achieved in that
The synchronous method that the invention provides a kind of partial fault processing, the method comprises:
In the time that user terminal UE moves to new mobile management entity MME, described new MME, carrying out in context transfer process, processes PFH ability information by the partial fault of self and sends to old MME;
Described old MME, according to the PFH ability information receiving, in the time that definite described new MME does not support PFH function, initiates the associated synchronisation operation of PFH to gateway S-GW and packet data network gateway P-GW.
The associated synchronisation operation of described PFH, is specially:
The MME-FQ-CSID that the bearing identification Bearer ID of the default bearing that described old MME connects grouped data network PDN to be discharged stores from self, delete, and send and discharge PDN articulation set request message to carry out PFH synchronous, the Bearer ID of the default bearing that described in carrying in described request message, PDN to be discharged connects to described S-GW;
The MME-FQ-CSID that the Bearer ID of the default bearing that described S-GW connects PDN to be discharged stores from self and S-GW-FQ-CSID, delete, and send and discharge PDN articulation set request message to carry out PFH synchronous, the Bearer ID of the default bearing that described in carrying in described request message, PDN to be discharged connects to described P-GW;
MME-FQ-CSID, the S-GW-FQ-CSID that the Bearer ID of the default bearing that described P-GW connects PDN to be discharged stores from self and P-GW-FQ-CSID, delete, and return and discharge PDN articulation set request response to old MME by S-GW.
The method further comprises: described new MME is carrying out in context transfer process, and the PFH ability information of carrying self by context acknowledgement message sends to old MME.
The method further comprises: described new MME is carrying out in context transfer process, and the PFH ability information of carrying self by context request signaling sends to old MME.
The method further comprises: described new MME is carrying out in context transfer process, weighs assignment response message carry the PFH ability information of self and send to old MME by node.
The method further comprises: described old MME, carrying out in context transfer process, sends to new MME by the PFH ability information of self.
The present invention also provides a kind of synchro system of partial fault processing, and this system comprises: new MME and old MME, S-GW and P-GW, wherein,
Described new MME, in the time that UE moves to described new MME, carrying out in context transfer process, sends to old MME by the PFH ability information of self;
Described old MME, for according to the PFH ability information receiving, in the time that definite described new MME does not support PFH function, initiates the associated synchronisation operation of PFH to described S-GW and P-GW;
Described S-GW and P-GW are for carrying out the associated synchronisation operation of PFH.
Described old MME is further used for, the MME-FQ-CSID that the Bearer ID of the default bearing that PDN to be discharged is connected stores from self, delete, and send and discharge PDN articulation set request message to carry out PFH synchronous, the Bearer ID of the default bearing that described in carrying in described request message, PDN to be discharged connects to described S-GW;
Accordingly, described S-GW is further used for, the MME-FQ-CSID that the BearerID of the default bearing that PDN to be discharged is connected stores from self and S-GW-FQ-CSID, delete, and send and discharge PDN articulation set request message to carry out PFH synchronous, the Bearer ID of the default bearing that described in carrying in described request message, PDN to be discharged connects to described P-GW;
Described P-GW is further used for, MME-FQ-CSID, the S-GW-FQ-CSID that the Bearer ID of the default bearing that PDN to be discharged is connected stores from self and P-GW-FQ-CSID, delete, and return and discharge PDN articulation set request response to old MME by S-GW.
Described new MME is further used for, and carrying out in context transfer process, the PFH ability information of carrying self by context acknowledgement message or context request signaling or the heavy assignment response message of node sends to old MME.
Described old MME is further used for, and carrying out in context transfer process, the PFH ability information of self is sent to described new MME.
The synchronous method of a kind of partial fault processing provided by the present invention and system, in the time that UE moves to new MME, carrying out in context transfer process, send to old MME by the PFH ability information of self by new MME; Old MME, according to the PFH ability information receiving, in the time that definite new MME does not support PFH function, initiates the associated synchronisation operation of PFH to S-GW and P-GW.By the present invention, make the synchronously associated PDN connection of FQ-CSID of S-GW or P-GW, thereby can correctly discharge S-GW or the corresponding PDN connection resource of P-GW.
Brief description of the drawings
Fig. 1 is the configuration diagram of SAE in prior art;
Fig. 2 is the flow chart of part troubleshooting in prior art;
Fig. 3 is the flow chart of tracing section updating operation in prior art;
Fig. 4 is the flow chart of the synchronous method of a kind of partial fault processing of the present invention;
Fig. 5 is the flow chart of the synchronous method of the partial fault processing of the embodiment of the present invention one;
Fig. 6 is the flow chart of the synchronous method of the partial fault processing of the embodiment of the present invention two;
Fig. 7 is the flow chart of the synchronous method of the partial fault processing of the embodiment of the present invention three;
Fig. 8 is the flow chart of the synchronous method of the partial fault processing of the embodiment of the present invention four;
Fig. 9 is the composition structural representation of the synchro system of a kind of partial fault processing of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the present invention is further elaborated.
Because new mobile management entity in prior art may not supported PFH function, thereby make S-GW or P-GW can not upgrade associated FQ-CSID, causing S-GW or the FQ-CSID of P-GW storage and the PDN of actual association to connect can not synchronize.Based on above-mentioned problem, the invention provides a kind of synchronous method of partial fault processing, in the time that UE moves new MME, by new MME carrying out, in context transfer process, the PFH ability of self is sent to old MME; If old MME knows new MME and do not support PFH function, old MME initiatively initiates to carry out the associated synchronisation operation of PFH to S-GW, P-GW.
The synchronous method of partial fault processing of the present invention, as shown in Figure 4, mainly comprises the following steps:
Step 401, UE moves to the overlay area of new MME, and new MME need to carry out context acquisition process with old MME, and in this process, the PFH ability of self (whether supporting PFH function) information is notified old MME by new MME.
Step 402～403, old MME is according to the PFH ability information receiving, know when new MME does not support PFH function, the MME-FQ-CSID that the Bearer ID of the default bearing that PDN to be discharged is connected stores from self, delete, and send and discharge PDN articulation set request message to carry out PFH synchronous to S-GW; This request message comprises the IMSI of UE, needs the BearerID of the default bearing of the PDN connection discharging.
Step 404, deletes the MME-FQ-CSID that the Bearer ID of the default bearing that S-GW connects PDN to be discharged stores from self and S-GW-FQ-CSID, and sends and discharge PDN articulation set request message to carry out PFH synchronous to P-GW; This request message comprises IMSI, needs the Bearer ID of the default bearing of the PDN connection discharging.
Step 405, deletes MME-FQ-CSID, the S-GW-FQ-CSID that the Bearer ID of the default bearing that P-GW connects PDN to be discharged stores from self and P-GW-FQ-CSID, and returns and discharge PDN articulation set request response to S-GW.
Step 406, S-GW returns and discharges PDN articulation set request response to old MME.
The synchronous method of the processing of partial fault shown in Fig. 4 is applied to the embodiment mono-in actual TAU process, as shown in Figure 5, mainly comprises the following steps:
Step 501, UE moves to new TAlist region, sends tracing section updating request to new MME, and request is registered in new region, and in this request message, carrying old MME is the GUTI that UE distributes.
Step 502, new MME finds old MME according to GUTI mark, sends context request signaling and carries out context acquisition process.
Step 503, user's mobile management and beared information are sent to new MME by old MME, and in the context response information of returning, carry PFH ability (whether the supporting PFH function) information of self.
Step 504, confirms to context after new MME receives context response information, context is confirmed; In the time determining that old MME supports PFH function, new MME carries PFH ability (whether the supporting PFH function) information of self in context acknowledgement message.
It is to be noted, the PFH ability information of self is sent to new MME by old MME, new MME just can be according to the transmission of the PFH ability information of the PFH ability information control new MME self of old MME, if determine that old MME supports PFH function, new MM need to send to old MME by the PFH ability information of self, used while carrying out follow-up PFH associated synchronisation operation for old MME; If determine that old MME does not support PFH function, so also just do not have follow-up PFH associated synchronisation operation, thereby new MME is also just without the PFH ability information of self is sent to old MME.
Step 505, new MME, to the request of S-GW starting update load bearing, carries source GTP-C Tunnel Identifier and object GTP-C Tunnel Identifier in request message, and S-GW is the binding relationship of new bearer more; If new MME supports PFH function, need the Bearer ID of default bearing to be associated to MME-FQ-CSID and to be sent to S-GW.
Step 506, S-GW sends more new bearer request to P-GW, and the parameters such as the positional information of the address information of S-GW, tunnel identification information, UE are sent to P-GW; S-GW need to be sent to P-GW by the new associated MME-FQ-CSID obtaining.
Step 507, P-GW upgrades the context of oneself and returns to more new bearer response message to S-GW.
Step 508, S-GW returns to more new bearer response to new MME, and object GTP-C Tunnel Identifier, the address of self and address and the tunnel information etc. of P-GW that S-GW is specified bring new MME.S-GW also needs the S-GW-FQ-CSID of self storage, and P-GW-FQ-CSID is sent to new MME.
Step 509, new MME notifies the change of HSS registered location by location update message.
Step 510, HSS sends canceling position signaling to old MME, only safeguards the registration of new MME.
Step 511, old MME cancels response to HSS home position.
Step 512, HSS upgrades and confirms the position of new MME.
Step 513, effective in current tracking area if new MME confirms UE, send tracing section updating to UE and accept message.
Step 514, if new MME is that UE has distributed a new GUTI mark by TAU flow process, UE can returning tracking district have upgraded message and has confirmed to new MME so.
Step 515, if new MME does not support PFH function, so old MME need to carry out PFH associated synchronisation process with S-GW, P-GW.PFH associated synchronisation process as shown in Figure 4, repeats no more herein.
In the embodiment shown in fig. 5, new MME is carrying out in context transfer process, and in the situation that determining that old MME supports PFH function, the PFH ability information of carrying self by context acknowledgement message sends to old MME.The synchronous method that Figure 6 shows that partial fault processing is applied to the embodiment bis-in actual TAU process, mainly comprises the following steps:
Step 601, UE moves to new TA list region, sends tracing section updating request to new MME, and request is registered in new region, and in this request message, carrying old MME is the GUTI that UE distributes.
Step 602, new MME finds old MME according to GUTI mark, sends context request signaling and carries out context acquisition process, and in context request signaling, carry PFH ability (whether the supporting PFH function) information of new MME self.
In this embodiment, new MME is without confirming whether old MME supports PFH function, directly the PFH ability information of self is sent to old MME, give old MME by the initiative of PFH associated synchronisation operation, if be that old MME supports PFH function, in the time judging that according to the PFH ability information of new MME new MME does not support PFH function, need to carry out the operation of PFH associated synchronisation so; If old MME does not support PFH function, so old MME also just operates without carrying out PFH associated synchronisation, thereby processes without the PFH ability information that new MME is sent.
Step 603, user's mobile management and beared information are sent to new MME by old MME.
Step 604, confirms to context after new MME receives context response information, context is confirmed.
In the operation of step 605～614 and Fig. 5, the class of operation of step 505～514 seemingly, repeats no more herein.
Step 615, if new MME does not support PFH function, so old MME need to carry out PFH associated synchronisation process with S-GW, P-GW.PFH associated synchronisation process as shown in Figure 4, repeats no more herein.
In the embodiment shown in fig. 6, new MME is carrying out in context transfer process, is that the PFH ability information of carrying self by context request signaling sends to old MME, and no matter whether old MME supports PFH function.
In addition, when the synchronous method of partial fault processing of the present invention is applied in the switching flow of UE, as shown in Figure 7, this embodiment mainly comprises the following steps:
Step 701, former eNodeB determines to the switching that new eNodeB initiates between eNodeB, core net node heavily distributes.
Step 702, former eNodeB sends handover request message to old MME.
Step 703, old MME selects new MME according to MME selection function, and to the heavy allocation request message of new MME sending node, this message comprises address and the up TEID of P-GW, the address of S-GW and up TEID, and old MME carries PFH ability (whether the supporting PFH function) information of self in heavy allocation request message.
Step 704, new MME sends handover request message to new eNodeB, and request is set up UE context in new eNodeB.
Step 705, new eNodeB sends switching request acknowledgement message to new MME.
Step 706, new MME weighs assignment response message to old MME sending node, and in this response message, carries PFH ability (whether the supporting PFH function) information of self.
Step 707, old MME sends switch indicating information to former eNodeB.
Step 708, switch indicating information is forwarded to UE by former eNodeB.
Step 709, UE and new eNodeB carry out after cell synchronous, send switch acknowledgment message to new eNodeB.
Step 710, new eNodeB sends handoff notification message to new MME.
Step 711, the message that new MME is heavily assigned to old MME sending node.
Step 712, the acknowledge message that old MME is heavily assigned to new MME return node.
Step 713, new MME, to the request of S-GW starting update load bearing, carries source GTP-C Tunnel Identifier and object GTP-C Tunnel Identifier in request message, and S-GW is the binding relationship of new bearer more; If new MME supports PFH function, need the Bearer ID of default bearing to be associated to MME-FQ-CSID and to be sent to S-GW.
Step 714, S-GW sends more new bearer request to P-GW, and the parameters such as the positional information of the address information of S-GW, tunnel identification information, UE are sent to P-GW; S-GW need to be sent to P-GW by the new associated MME-FQ-CSID obtaining.
Step 715, P-GW upgrades the context of self, and returns to renewal bearing response message to S-GW.
Step 716, S-GW returns to renewal bearing response message to new MME, and object GTP-C Tunnel Identifier, the address of self and address and the tunnel information etc. of P-GW that S-GW is specified bring new MME.S-GW also needs the S-GW-FQ-CSID of self storage, and P-GW-FQ-CSID is sent to new MME.
Step 717, if new MME does not support PFH function, old MME need to carry out PFH associated synchronisation process with S-GW, P-GW.PFH associated synchronisation process as shown in Figure 4, repeats no more herein.
In the embodiment shown in fig. 7, the PFH ability information that old MME carries self in heavy allocation request message sends to new MME, and certainly, in practical application, old MME also can not carry the PFH ability information of self, as shown in Figure 8.Shown in operation embodiment illustrated in fig. 8 and Fig. 7, example class seemingly, repeats no more herein, and unique difference is the PFH ability information that in step 803, old MME does not carry old MME self in heavy allocation request message.
In addition, it is pointed out that in above-mentioned each embodiment, PFH ability information can take a message elements in message,, in the time that this message elements value is " 1 ", represents that MME supports PFH function, in the time that this message elements value is " 0 ", represent that MME does not support PFH function; Or, in the time that this message elements value is " 0 ", represent that MME supports PFH function, in the time that this message elements value is " 1 ", represent that MME does not support PFH function.
For realizing the synchronous method of above-mentioned partial fault processing, the present invention also provides a kind of synchro system of partial fault processing, and as shown in Figure 9, this system comprises: new MME 10, old MME 20, S-GW 30 and P-GW 40.New MME 10, when moving to this new MME 10 at UE, carrying out in context transfer process, sends to old MME 20 by the PFH ability information of self.Old MME 20, for according to the PFH ability information receiving, in the time that definite new MME 10 does not support PFH function, initiates the associated synchronisation operation of PFH to S-GW 30 and P-GW 40.S-GW 30 and P-GW 40, for carrying out the associated synchronisation operation of PFH.
Preferably, old MME 20 is further used for, the MME-FQ-CSID that the BearerID of the default bearing that PDN to be discharged is connected stores from self, delete, and send and discharge PDN articulation set request messages to carry out PFH synchronous to S-GW 30, in this request message, carry the Bearer ID of the default bearing that PDN to be discharged connects; Accordingly, S-GW 30 is further used for, the MME-FQ-CSID that the Bearer ID of the default bearing that PDN to be discharged is connected stores from self and S-GW-FQ-CSID, delete, and send and discharge PDN articulation set request messages to carry out PFH synchronous to P-GW 40, in this request message, carry the Bearer ID of the default bearing that PDN to be discharged connects; P-GW 40 is further used for, MME-FQ-CSID, the S-GW-FQ-CSID that the Bearer ID of the default bearing that PDN to be discharged is connected stores from self and P-GW-FQ-CSID, delete, and return and discharge PDN articulation set request response to old MME 20 by S-GW 30.
New MME 10 is further used for, and carrying out in context transfer process, the PFH ability information of carrying self by context acknowledgement message or context request signaling or the heavy assignment response message of node sends to old MME 20.
Old MME 20 is further used for, and carrying out in context transfer process, the PFH ability information of self is sent to new MME 10.
In sum, by the present invention, make the synchronously associated PDN connection of FQ-CSID of S-GW or P-GW, thereby can carry out correct releasing operation to corresponding PDN connection resource.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.
Claims (8)
1. a synchronous method for partial fault processing, is characterized in that, the method comprises:
In the time that user terminal UE moves to new mobile management entity MME, described new MME, carrying out in context transfer process, processes PFH ability information by the partial fault of self and sends to old MME;
Described old MME, according to the PFH ability information receiving, in the time that definite described new MME does not support PFH function, initiates the associated synchronisation operation of PFH to gateway S-GW and packet data network gateway P-GW;
The associated synchronisation operation of described PFH comprises:
The MME-FQ-CSID that the bearing identification Bearer ID of the default bearing that described old MME connects grouped data network PDN to be discharged stores from self, delete, and send and discharge PDN articulation set request message to carry out PFH synchronous, the Bearer ID of the default bearing that described in carrying in described request message, PDN to be discharged connects to described S-GW;
The MME-FQ-CSID that the Bearer ID of the default bearing that described S-GW connects PDN to be discharged stores from self and S-GW-FQ-CSID, delete, and send and discharge PDN articulation set request message to carry out PFH synchronous, the Bearer ID of the default bearing that described in carrying in described request message, PDN to be discharged connects to described P-GW;
MME-FQ-CSID, the S-GW-FQ-CSID that the Bearer ID of the default bearing that described P-GW connects PDN to be discharged stores from self and P-GW-FQ-CSID, delete, and return and discharge PDN articulation set request response to old MME by S-GW.
2. the synchronous method of partial fault processing according to claim 1, is characterized in that, the method further comprises: described new MME is carrying out in context transfer process, and the PFH ability information of carrying self by context acknowledgement message sends to old MME.
3. the synchronous method of partial fault processing according to claim 1, is characterized in that, the method further comprises: described new MME is carrying out in context transfer process, and the PFH ability information of carrying self by context request signaling sends to old MME.
4. the synchronous method of partial fault processing according to claim 1, is characterized in that, the method further comprises: described new MME is carrying out in context transfer process, weighs assignment response message carry the PFH ability information of self and send to old MME by node.
5. the synchronous method of partial fault processing according to claim 1, is characterized in that, the method further comprises: described old MME, carrying out in context transfer process, sends to new MME by the PFH ability information of self.
6. a synchro system for partial fault processing, is characterized in that, this system comprises: new MME and old MME, S-GW and P-GW, wherein,
Described new MME, in the time that UE moves to described new MME, carrying out in context transfer process, sends to old MME by the PFH ability information of self;
Described old MME, for according to the PFH ability information receiving, in the time that definite described new MME does not support PFH function, initiates the associated synchronisation operation of PFH to described S-GW and P-GW; Also delete for the MME-FQ-CSID that the Bearer ID of the default bearing of PDN connection to be discharged is stored from self, and send and discharge PDN articulation set request message to carry out PFH synchronous, the Bearer ID of the default bearing that described in carrying in described request message, PDN to be discharged connects to described S-GW;
Described S-GW, for carrying out the associated synchronisation operation of PFH, also delete for MME-FQ-CSID and S-GW-FQ-CSID that the Bearer ID of the default bearing of PDN connection to be discharged is stored from self, and send and discharge PDN articulation set request message to carry out PFH synchronous, the Bearer ID of the default bearing that described in carrying in described request message, PDN to be discharged connects to described P-GW;
Described P-GW, for carrying out the associated synchronisation operation of PFH; Also delete for MME-FQ-CSID, S-GW-FQ-CSID and P-GW-FQ-CSID that the Bearer ID of the default bearing of PDN connection to be discharged is stored from self, and return and discharge PDN articulation set request response to old MME by S-GW.
7. the synchro system of partial fault processing according to claim 6, it is characterized in that, described new MME is further used for, carrying out in context transfer process, the PFH ability information of carrying self by context acknowledgement message or context request signaling or the heavy assignment response message of node sends to old MME.
8. the synchro system of partial fault processing according to claim 6, is characterized in that, described old MME is further used for, and carrying out in context transfer process, the PFH ability information of self is sent to described new MME.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910089396.0A CN101959209B (en) | 2009-07-16 | 2009-07-16 | Synchronization method and system for partial failure handling |
| PCT/CN2010/073062 WO2011006395A1 (en) | 2009-07-16 | 2010-05-21 | Synchronization method and system for partial failure handling |
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| CN200910089396.0A CN101959209B (en) | 2009-07-16 | 2009-07-16 | Synchronization method and system for partial failure handling |
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| CN101959209A CN101959209A (en) | 2011-01-26 |
| CN101959209B true CN101959209B (en) | 2014-06-11 |
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| CN200910089396.0A Expired - Fee Related CN101959209B (en) | 2009-07-16 | 2009-07-16 | Synchronization method and system for partial failure handling |
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| CN102740268B (en) | 2011-04-07 | 2017-04-12 | 中兴通讯股份有限公司 | System for packet data network gateway and terminal mobility management |
| CN103702353B (en) * | 2012-09-28 | 2018-01-23 | 中国电信股份有限公司 | Fault Locating Method and system, and access point and Network Management Equipment |
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| CN101365159B (en) * | 2007-08-08 | 2011-11-16 | 华为技术有限公司 | Bearing identification processing method and apparatus |
| CN101388828B (en) * | 2007-09-10 | 2011-07-13 | 电信科学技术研究院 | Method and device for bearing activation by evolution packet switching system |
| KR100943078B1 (en) * | 2007-12-14 | 2010-02-18 | 한국전자통신연구원 | A bearer control and management method in the IP-based evolved UMTS Network |
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