CN102045751A - Method and system for maintaining local connection information - Google Patents
Method and system for maintaining local connection information Download PDFInfo
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- CN102045751A CN102045751A CN2010101148440A CN201010114844A CN102045751A CN 102045751 A CN102045751 A CN 102045751A CN 2010101148440 A CN2010101148440 A CN 2010101148440A CN 201010114844 A CN201010114844 A CN 201010114844A CN 102045751 A CN102045751 A CN 102045751A
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Abstract
The invention relates to a method for maintaining local connection information. The method for maintaining the local connection information comprises the following steps that: A, a mobile management unit judges that the local connection information corresponding to a terminal stored by a base station which integrates a local access gateway function is invalid; B, the mobile management unit transmits a message to the base station, wherein the message carries indication information for indicating the base station to delete the local connection information corresponding to the terminal; and C, the base station receives the message, deletes the local connection information corresponding to the terminal according to the indication information and returns a response message to the mobile management unit. By the method and a system for maintaining the local connection information, invalid local connection information in the base station can be effectively cleared and the performance of the base station can be improved.
Description
Technical field
The present invention relates to moving communicating field, be specifically related to a kind of maintaining method and system of local link information.
Background technology
In order to keep the competitiveness of 3-G (Generation Three mobile communication system) in the communications field, speed is faster, time delay is lower, the mobile communication service of personalization more for the user provides, simultaneously, reduce operating cost of operator, 3GPP (3rd Generation Partnership Project, third generation partner program) the standard operation group just is being devoted to the evolved packet system research of (Evolved Packet System is called for short EPS).Fig. 1 shows the structural representation of evolution grouping domain system, and as shown in Figure 1, whole EPS system is divided into wireless access network and core net two parts.In core net, comprised home subscriber server (HomeSubscriber Server, abbreviate HSS as), Mobility Management Entity (Mobility ManagementEntity, abbreviate MME as), Serving GPRS Support Node (Serving GPRS Support Node, abbreviate SGSN as), policy charging rule function (Policy and Charging Rule Function, abbreviate PCRF as), gateway (Serving Gateway, abbreviate S-GW as), packet data gateway (PDN Gateway, abbreviate P-GW as) and packet data network (Packet Data Network, packet data network).Below detailed each several part function:
Home subscriber server is the permanent storage place of user contracting data, is positioned at the home network that the user contracts.
Mobility Management Entity, be the storage place of user contracting data, be responsible for the Non-Access Stratum signaling management of terminal to network, the safety verification function of terminal, mobile management, the tracking under user's idle pulley and the paging management function and the bearer management of terminal in current network.
Serving GPRS Support Node is the business support point of GERAN and UTRAN user access core network network, and is similar with Mobility Management Entity on the function, is responsible for user's functions such as position renewal, paging management and bearer management.
Gateway is the gateway that core net arrives wireless system, is responsible for terminal to the user plane bearer of core net, the metadata cache under the terminal idle pulley, function, Lawful Interception and grouped data route and the forwarding capability that network side is initiated service request; Gateway is responsible for adding up the situation that user terminal uses wireless network, and produces the ticket that terminal is used wireless network, sends charging gateway to.
Packet data gateway, it is the gateway of evolution system and this system's external packet data network, it is connected on internet and the packet data network, functions such as Internet protocol (Internet Protocol the abbreviates IP as) address assignment of responsible terminal, billing function, grouping packet filtering, policy control.
Packet data network is the IP operation network of operator, and this network provides IP service by the core net of operator for the user.
Policy charging rule functional entity is a server of being responsible for providing charging control, the control of online credit, thresholding control, service quality (Quality of Service abbreviates QoS as) tactful aspect rule in the evolution system.
Wireless access network, be by evolution base station (E-UTRAN NodeB, be called for short eNB) and 3G radio network controller (Radio Network Control, be called for short RNC) form, it mainly is responsible for the transmitting-receiving of wireless signal, by air interface and terminal contact, Radio Resource, scheduling of resource, the access control of management air interface.
Above-mentioned Serving GPRS Support Node is the SGSN that upgraded, can support and gateway between the S4 interface, and and mobility management unit between adopt the GTPv2 agreement to carry out intercommunication.And the PS territory network architecture and Fig. 1 are different for the SGSN that supports the 3G core net.This moment, SGSN adopted gn interface to link to each other with MME, and the GTPv1 agreement is adopted in intercommunication.SGSN can not link to each other with gateway, is connected to Gateway GPRS Support Node (Gateway GPRS Support Node is called for short GGSN) by gn interface and directly carries out the packet data network visit.
Home eNodeB (Home NodeB, abbreviate HNB as) or the Home eNodeB (HomeeNodeN of evolution, be called for short HeNB) be small-sized, the lower powered base station of a class, dedicated resources as the certain user, being deployed in private sites such as family, group, company or school uses, mainly be in order higher service rate to be provided to the user and to reduce and use the needed expense of high rate services, remedying the deficiency that existing distributed cellular radio communication system covers simultaneously.The advantage of Home eNodeB is economical, convenient, low-power output, plug and play, broadband access, use single-mode terminal etc.
Home eNodeB can be applied in 3G (3Generation, the third generation) or LTE (Long TermEvolution, the Long Term Evolution) mobile communications network.For the ease of Home eNodeB is managed, new network element, i.e. a femto gateway in network, have been introduced.The function that femto gateway is mainly carried out is: the fail safe of checking Home eNodeB, maintenance management is carried out in the operation of Home eNodeB, and according to Carrier Requirements configuration and control Home eNodeB, be responsible for the data message of exchcange core net and Home eNodeB.Fig. 2 is a 3G home base station network Organization Chart, and the 3G Home eNodeB is connected to femto gateway by the Iuh interface of redetermination, and femto gateway is provided to the IuPS and the IuCs interface of core network packet-domain and circuit domain.The essential deployment of femto gateway is used for shielding the influence of introducing behind the Home eNodeB terminal and network side for 3G network.The optional deployment of femto gateway for the LTE network, therefore LTE Home eNodeB and core net are connected with dual mode, a kind of is that Home eNodeB directly links to each other with core network element, and another kind is that Home eNodeB links to each other with core network element by gateway, shown in Fig. 3,4.Scene for introducing femto gateway shown in Figure 4, femto gateway can not integrated user plane functions, directly sets up user's face between Home eNodeB and core net user plane gateway, can make the flattening of user's face like this, data transmission delay reduces, as shown in Figure 5.
Home eNodeB is except supporting by the access of mobile core network, can also support local IP access function, possess at Home eNodeB under the condition of local IP access capability and the signatory permission of user local IP access, can realize that the user inserts this locality of other IP devices of home network or internet.By local access function, can realize the shunting of Internet data service, reduce the core net load, and can not transmit the transfer of data convenient and efficient by core net for the visit of home network device.Local IP access function also can use on macrocellular, and main application and Home eNodeB are similar, more is to be applied in local IP to insert this scene of Internet, and purpose is to reduce the core net load.Fig. 6 and Fig. 7 have provided the framework of realizing above-mentioned local access function respectively, and main difference is embodied in whether there is home base-station gateway.Wherein, local access network closes the network that is linked into external network (for example internet) as this locality, and functions such as address assignment, charging, grouping packet filtering, policy control are provided.This network element is advised in actual deployment itself and existing base station from home or base stations united deployment as a logical block module.Realize local access architecture for macrocellular, the wireless access gateway suggestion can realize itself and base stations united deployment by the framework of Fig. 7.
In order to simplify network configuration and interface message, between mobile management unit and local access network under this framework close, do not have direct interface, and need to obtain some necessary information in order to set up the local local access network pass that connects.Because local access network pass and base station or base station from home are united deployment, so these information can pass to the local access network pass by the interface between mobile management unit and base station or the base station from home.
For there not being integrated local access network to close the base station or the base station from home of function, if connecting, the signaling between terminal and the network (comprising base station or base station from home, mobile management unit) disconnects, be that UE enters idle condition, then base station or base station from home can not keep the relevant information of UE.But integrated local access network closes the base station or the base station from home of function, connect for quick-recovery is local soon after the UE recovery signaling connection that guarantees Idle state, need local access network so integrated and close the base station of function or base station from home when UE enters Idle state, still can keep the local link information of some necessity.But consider that moving of Idle state UE may cause leaving the service range that local access network closes, even follow-up UE has recovered signaling and connected and no longer to need original local link information, may cause local access network so integrated and close the invalid data in the base station of function too much to influence base station performance.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of maintaining method and system of local link information, with local link information invalid in effective cleaning base station, improves base station performance.
In order to overcome the above problems, the invention provides a kind of maintaining method of local link information, this method comprises:
A, mobile management unit judge local access network integrated and close that the local link information of the terminal correspondence that preserve the base station of function lost efficacy;
B, described mobile management unit send message to described base station, wherein carry the indication base station and delete the indication information of the local link information of described terminal correspondence;
C, described base station receive described message, delete the local link information of described terminal correspondence according to described indication information, and return response message to described mobile management unit.
Further, in the steps A, described mobile management unit judges that the sight that the local link information of described terminal lost efficacy comprises described terminal log-down, or this locality of described terminal connects corresponding mobile management unit or base station and changes.
Further, this locality that causes described terminal connects scene that corresponding mobile management unit or base station change and comprises that described terminal initiates position updating request, described terminal originating service request or described base station and initiate to switch.
Further, among the step B, when the logic association not relevant with described terminal between described mobile management unit and the described base station, described message is also carried the user ID of described terminal; Among the step C, described local link information is deleted according to described indication information and user ID in described base station.
Further, in the steps A, it is overtime that described mobile management unit judges that the sight of the local link information inefficacy of described terminal comprises that described terminal is set up the affiliated closed user group (CSG) in locally-attached base station.
Further, in long term evolution access system, described base station refers to family's evolution base station (HeNB) or evolution base station (eNB), and described mobile management unit refers to Mobility Management Entity (MME); In universal land radio access web (UTRAN) or GSM/EDGE wireless telecommunications net (GERAN), described base station refers to Home eNodeB or radio network controller (RNC), and described mobile management unit is Serving GPRS Support Node (SGSN).
In order to overcome the above problems, the present invention also provides a kind of maintaining method of local link information,, this method comprises:
A. it is overtime that mobile management unit judgement terminal is set up the affiliated CSG in locally-attached base station;
B, mobile management unit send message to described base station, and wherein carried terminal is set up the affiliated overtime indication information of CSG in locally-attached base station;
C, described base station receive described message, delete the local link information of described terminal correspondence according to described indication information, and return response message to described mobile management unit.
Further, in long term evolution access system, described base station refers to family's evolution base station (HeNB) or evolution base station (eNB), and described mobile management unit refers to Mobility Management Entity (MME); In universal land radio access web (UTRAN) or GSM/EDGE wireless telecommunications net (GERAN), described base station refers to Home eNodeB or radio network controller (RNC), and described mobile management unit is Serving GPRS Support Node (SGSN).
For solving above technical problem, the present invention also provides a kind of maintenance system of local link information, and this system comprises that the mobile management unit that connects by network and integrated local access network close the base station of function, wherein:
Described mobile management unit sent message to the described base station of stating when the local link information that is used to judge the terminal correspondence that preserve described base station loses efficacy, and wherein carried the indication base station and deleted the indication information of the local link information of described terminal correspondence;
Described base station is used for deleting according to described message the local link information of described terminal correspondence.
Further,
Described mobile management unit comprises interconnective maintenance management module and transceiver module, and wherein, described maintenance management module is used to judge whether the local link information of the terminal correspondence of base station savepoint lost efficacy, and judges and notified described transceiver module when losing efficacy; Described transceiver module is used for response message from described base station to described base station that send message and receive, if receive the failure notification of judge module, sends in the message of described base station and carries described indication information; When the logic association not relevant with described terminal between described mobile management unit and the described base station, the described message that sends to described base station is also carried the user ID of described terminal;
Described base station comprises interconnective transceiver module and maintenance of information module, wherein, described transceiver module is used to receive message that described mobile management unit sends and sends response message to described mobile management unit, and notifies described maintenance of information module when carrying described indication information in the message that receives; Described maintenance of information module is according to described indication information or according to described indication information and the corresponding local link information of user ID deletion.
Further, the management maintenance module of described mobile management unit judges that the sight that the local link information of described terminal lost efficacy comprises described terminal log-down, or corresponding mobile management unit or the base station of connection, this locality of described terminal changes.
Further, this locality that causes described terminal connects scene that corresponding mobile management unit or base station change and comprises that described terminal initiates position updating request, described terminal originating service request or described base station and initiate to switch.
Further, the management maintenance module of described mobile management unit judges that the CSG that sight that the local link information of described terminal lost efficacy comprises that described terminal sets up under locally-attached base station is overtime.
Further, in long term evolution access system, described base station refers to family's evolution base station (HeNB) or evolution base station (eNB), and described mobile management unit refers to Mobility Management Entity (MME); In universal land radio access web (UTRAN) or GSM/EDGE wireless telecommunications net (GERAN), described base station refers to Home eNodeB or radio network controller (RNC), and described mobile management unit is Serving GPRS Support Node (SGSN).
For solving above technical problem, the present invention also provides a kind of maintenance system of local link information, and this system comprises that the mobile management unit that connects by network and integrated local access network close the base station of function, wherein:
Described mobile management unit is used to judge that terminal sets up CSG under locally-attached base station and send message to described base station when overtime, and wherein carried terminal is set up the overtime indication information of CSG under locally-attached base station;
Described base station is used for deleting according to the described indication information of the described message received the local link information of described terminal correspondence, and returns response message to described mobile management unit.
Further, in long term evolution access system, described base station refers to family's evolution base station (HeNB) or evolution base station (eNB), and described mobile management unit refers to Mobility Management Entity (MME); In universal land radio access web (UTRAN) or GSM/EDGE wireless telecommunications net (GERAN), described base station refers to Home eNodeB or radio network controller (RNC), and described mobile management unit is Serving GPRS Support Node (SGSN).
In the maintaining method and system of the local link information of the present invention, mobile management unit judges according to different scenes whether the local link information that preserve the base station lost efficacy, judged when losing efficacy, the corresponding local link information of informing base station deletion, invalid local link information can be cleared up in the base station that guarantees local access network integrated and close function, thereby reduced the redundant information of base station, avoided the waste of base station resource, prevented of the influence of too much redundant data base station performance.
Description of drawings
Fig. 1 is the structural representation of evolution grouping domain system.
Fig. 2 is a 3G home base station network configuration diagram.
Fig. 3 is one of LTE home base station network configuration diagram.
Fig. 4 is two of a LTE home base station network configuration diagram.
Fig. 5 is three of a LTE home base station network configuration diagram.
Fig. 6 realizes one of local network architecture schematic diagram that inserts.
Fig. 7 realizes two of the local network architecture schematic diagram that inserts.
Fig. 8 is an embodiment of the present invention one, and UE is under the idle condition, and mobile management unit is nullified terminal, and informing base station discharges the flow chart of local access information.
Fig. 9 is an embodiment of the present invention two, and UE initiates position updating request, and the mobile management unit informing base station discharges the flow chart of local access information
Figure 10 is an embodiment of the present invention three, and UE initiates position updating request, and the mobile management unit informing base station discharges the flow chart of local access information.
Figure 11 is an embodiment of the present invention four, and UE initiates service request, and the mobile management unit informing base station discharges the flow chart of local access information
Figure 12 is an embodiment of the present invention five, and in the handoff procedure, the mobile management unit informing base station discharges the flow chart of local access information
Figure 13 is an embodiment of the present invention six, and when the CSG under terminal is set up locally-attached base station was overtime, informing base station discharged the flow chart of local access information.
Embodiment
The maintaining method of the local link information of the present invention and the main thought of system are, when mobile management unit judges that the local link information of the terminal correspondence that preserve the base station lost efficacy, the corresponding local link information of base station deletion of notifying integrated local access network to close function, invalid local link information can be cleared up in the base station that guarantees local access network integrated and close function, prevents the influence of too much redundant data to base station performance.
The maintaining method that the invention provides a kind of local link information comprises:
A, mobile management unit judge local access network integrated and close that the local link information of the terminal correspondence that preserve the base station of function lost efficacy;
In the steps A, described mobile management unit judges that the sight that the local link information of described terminal lost efficacy comprises that this locality of described terminal log-down and described terminal connects corresponding mobile management unit or base station and changes, or the CSG that described terminal is set up under locally-attached base station is overtime.
This locality that causes described terminal connects scene that corresponding mobile management unit or base station change and comprises that described terminal initiates position updating request, described terminal originating service request or described base station and initiate to switch.
B, described mobile management unit send message to described base station, wherein carry the indication base station and delete the indication information of the local link information of described terminal correspondence;
C, described base station receive described message, delete the local link information of described terminal correspondence according to described indication information, and return response message to described mobile management unit.
Among the step B, when the logic association not relevant with described terminal between described mobile management unit and the described base station, described message is also carried the user ID of described terminal; Among the step C, described local link information is deleted according to described indication information and user ID in described base station.
The present invention also provides a kind of maintaining method of local link information, comprising:
A. it is overtime that mobile management unit judgement terminal is set up the affiliated CSG in locally-attached base station;
B, mobile management unit send message to described base station, and wherein carried terminal is set up the affiliated overtime indication information of CSG in locally-attached base station;
C, described base station receive described message, delete the local link information of described terminal correspondence according to described indication information, and return response message to described mobile management unit.
Above-mentioned two kinds of methods, base station/base station from home can be judged the local inefficacy that connects according to the inefficacy indication of mobile management unit, also can set up local the connection by overtime indication of CSG and terminal and judge the local inefficacy that connects.
The said base station of the present invention has referred to local access network integrated closes the base station or the base station from home of function.Particularly, the present invention is applicable to LTE (Long Term Evolution, Long Term Evolution) access or UTRAN (Universal Terrestrial Radio Access Network, universal terrestrial access network)/ situation that GERAN (GSM/EDGE RadioAccessNetwork, GSM/EDGE wireless communication networks) inserts.In (LTE), described base station refers to family's evolution base station (HeNB) or evolution base station (eNB), and described mobile management unit refers to Mobility Management Entity (MME); In universal land radio access web (UTRAN) or GSM/EDGE wireless telecommunications net (GERAN), described base station refers to Home eNodeB (HNB) or radio network controller (RNC), and described mobile management unit is Serving GPRS Support Node (SGSN).
Below in conjunction with accompanying drawing, the specific implementation flow process of the inventive method under various scenes is elaborated:
Application example one
Fig. 8 is that UE is under the idle condition, and mobile management unit is nullified terminal, and the notice local access network closes the execution mode that discharges local access information.
Integrated local access network closes function and has set up local the connection in the step 801, UE and base station;
Step 802 because subscription data changes, moves perhaps and safeguards that (Operation andMaintenance is called for short O﹠amp; M) attaching position register of system notice need be with UE deregistration;
Step 803, mobile management unit are judged and UE implicit expression need be nullified;
Judging the condition of nullifying, can be the notification message of receiving step 802, judges according to the reason of notice UE implicit expression is nullified.If perhaps step 802 is not carried out, mobile management unit can be nullified timer expiry according to UE accessibility timer or the implicit expression that preserves this locality so, and UE implicit expression is nullified in the mobile management unit judgement.
Step 804～805, mobile management unit judge that according to the information in the context of UE UE has set up local connection, and then the mobile management unit informing base station connects the context deletion with this locality of UE;
Local access network pass function is integrated on the base station among the present invention, and do not have direct interface between the mobile management unit, so need use S1AP or RANAP that the local link information that local access network closes function is discharged by the interface between mobile management unit and the base station.
If the logic association relevant with UE arranged between mobile management unit and the base station, then mobile management unit sends UE context release request, wherein carries the indication that discharges local link information.After this message was received in the base station, according to this indication, the inner local access network of notice closed functional module, with the locally-attached context deletion of UE.Afterwards, UE context release response is returned to mobile management unit in the base station.After this process finished, the logic association relevant with UE between base station and the mobile management unit was deleted.Above-mentioned indication can utilize existing cancellation cause value, perhaps by expansion reason value, promptly sets a new cause value, perhaps realizes by newly-increased message elements.
If there be not the logic association relevant with UE between mobile management unit and the base station, then mobile management unit sends UE context release request, wherein carries the indication that discharges local link information, and the user ID of UE.After this message was received in the base station, according to the user ID of this indication and UE, the inner local access network of notice closed module, with the locally-attached context deletion of UE.Afterwards, the base station sends UE context release response, the user ID of wherein carrying UE to mobile management unit.
The user ID of UE is that mobile management unit distributes, and inserts for LTE, and the UE user ID is GUTI, inserts for GERAN/UTRAN, and the UE user ID is P-TMSI.
Step 806, if UE also has the carrying of core net, then mobile management unit also needs to be notified to the carrying of core net gateway deletion core net.
This process is known for those skilled in the art, does not do here and gives unnecessary details.
Application example two
Fig. 9 is that UE initiates position updating request, and mobile management unit notice local access network closes the execution mode one that discharges local access information.
Integrated local access network closes function and has set up local the connection in the step 901, UE and base station;
Step 902, UE initiates to send position updating request by the base station to mobile management unit, carries the user ID of UE in the request.
Step 903, mobile management unit finds the source mobile management unit according to the user ID of UE, sends context request message and carries out the context acquisition process.
Step 904, source mobile management unit change according to mobile management unit and judge that needs discharge this locality of setting up before and connect.
Step 905, the source mobile management unit sends to mobile management unit with user's mobile management and beared information, does not wherein comprise the local link information of UE in the beared information;
Step 906, mobile management unit are confirmed context request after receiving corresponding information.
Step 907～908, source mobile management unit judge that according to the information in the context of UE UE has set up local connection, and then source mobile management unit notification source base station connects the context deletion with this locality of UE.
If the logic association relevant with UE arranged between source mobile management unit and the source base station, then the source mobile management unit sends UE context release request, wherein carries the indication that discharges local link information.After source base station was received this message, according to this indication, the inner local access network of notice closed module, with the locally-attached context deletion of UE.Afterwards, source base station returns UE context release response to the source mobile management unit.After this process finished, the logic association relevant with UE between source base station and the source mobile management unit was deleted.Above-mentioned indication can utilize existing cancellation cause value, perhaps by expansion reason value, promptly sets a new cause value, perhaps realizes by newly-increased message elements.
If there be not the logic association relevant with UE between source mobile management unit and the source base station, then the source mobile management unit sends UE context release request, wherein carries the indication of the local link information of release and the user ID of UE.After source base station was received this message, according to the user ID of this indication and UE, the inner local access network of notice closed module, with the locally-attached context deletion of UE.Afterwards, source base station sends UE context release response, the user ID of wherein carrying UE to the source mobile management unit.
Step 905～step 906 does not have strict ordinal relation with step 907～908.
Step 909 is carried out follow-up position updating process.This process is known for those skilled in the art, does not do here and gives unnecessary details.
Application example three
Figure 10 is that UE initiates position updating request, and mobile management unit notice local access network closes the execution mode two that discharges local access information.
Integrated local access network closes function and has set up local the connection in the step 1001, UE and base station;
Step 1002, UE initiates to send position updating request by the base station to mobile management unit, carries the user ID of UE in the request.
Step 1003, mobile management unit change according to access base station and judge that needs discharge this locality of setting up before and connect.
Step 1004～1005, mobile management unit judge that according to the information in the context of UE UE has set up local connection, and then mobile management unit notification source base station connects the context deletion with this locality of UE.
If the logic association relevant with UE arranged between mobile management unit and the source base station, then mobile management unit sends UE context release request, wherein carries the indication that discharges local link information.After source base station was received this message, according to this indication, the inner local access network of notice closed module, with the locally-attached context deletion of UE.Afterwards, source base station returns UE context release response to mobile management unit.After this process finished, the logic association relevant with UE between source base station and the mobile management unit was deleted.Above-mentioned indication can utilize existing cancellation reason, perhaps by expansion reason value, promptly sets a new cause value, perhaps realizes by newly-increased message elements.
If there be not the logic association relevant with UE between mobile management unit and the source base station, then mobile management unit sends UE context release request, wherein carries the indication of the local link information of release and the user ID of UE.After source base station was received this message, according to the user ID of this indication and UE, the inner local access network of notice closed module, with the locally-attached context deletion of UE.Afterwards, source base station sends UE context deletion response, the user ID of wherein carrying UE to mobile management unit.
Application example four
Figure 11 is that UE initiates service request, and mobile management unit notice local access network closes the execution mode that discharges local access information.
Integrated local access network closes function and has set up local the connection in the step 1101, UE and base station;
Step 1102, UE initiates to send service request by the base station to mobile management unit, carries the user ID of UE in the request.
Step 1103, mobile management unit change according to access base station and judge that needs discharge this locality of setting up before and connect.
Step 1104～1105, mobile management unit judge that according to the information in the context of UE UE has set up local connection, and then mobile management unit notification source base station connects the context deletion with this locality of UE.
If the logic association relevant with UE arranged between mobile management unit and the source base station, then mobile management unit sends UE context release request, wherein carries the indication that discharges local link information.After source base station was received this message, according to this indication, the inner local access network of notice closed module, with the locally-attached context deletion of UE.Afterwards, source base station returns UE context release response to mobile management unit.After this process finished, the logic association relevant with UE between source base station and the mobile management unit was deleted.Above-mentioned indication can utilize existing cancellation cause value, perhaps by expansion reason value, promptly sets a new cause value, perhaps realizes by newly-increased message elements.
If there be not the logic association relevant with UE between mobile management unit and the source base station, then mobile management unit sends UE context release request, wherein carries the indication of the local link information of release and the user ID of UE.After source base station was received this message, according to the user ID of this indication and UE, the inner local access network of notice closed module, with the locally-attached context deletion of UE.Afterwards, source base station sends UE context release response, the user ID of wherein carrying UE to mobile management unit.
Step 1106 is carried out follow-up service request process.This process is known for those skilled in the art, does not do here and gives unnecessary details.
Core net gateway in the above application example one to four refers to the GGSN/SGW/PGW that is positioned at core net, and this network element and the present invention are irrelevant, do not do too much qualification here.
Application example five
Figure 12 is that handoff request is initiated in the base station, and mobile management unit notice local access network closes the execution mode that discharges local access information.
Integrated local access network closes function and has set up local the connection in the step 1201, UE and base station;
Step 1202, source base station are according to the measurement parameter of wireless side, and switching flow is initiated in decision.Source base station sends handoff request to the source mobile management unit, wherein comprises the information that source base station need send to target BS, the target BS sign.
Step 1203, source mobile management unit change according to access base station and judge that needs discharge this locality of setting up before and connect.
If the source mobile management unit is found to be connected to target BS, then the source mobile management unit is according to new mobile management unit of target BS Information Selection, otherwise target mobile management unit among the figure and source mobile management unit are network elements, then do not need to carry out 1204 follow-up steps.
Step 1204, source mobile management unit send to the target mobile management unit and transmit handoff request, wherein comprise contextual information and the beared information of UE.The beared information that does not wherein comprise local join dependency in the beared information.
Step 1205, the target mobile management unit sends handoff request to target BS.
Step 1206 is carried out the follow-up flow process of switching.
Step 1207～1208, after switching was finished, mobile management unit notification source base station connected the context deletion with this locality of UE.
If the logic association relevant with UE arranged between mobile management unit and the source base station, then mobile management unit sends UE context release request, wherein carries the indication that discharges local link information.After source base station was received this message, according to this indication, the inner local access network of notice closed module, with the locally-attached context deletion of UE.Afterwards, source base station returns UE context release response to mobile management unit.After this process finished, the logic association relevant with UE between source base station and the mobile management unit was deleted.Above-mentioned indication can utilize existing cancellation reason, perhaps by expansion reason value, promptly sets a new cause value, perhaps realizes by newly-increased message elements.
If there be not the logic association relevant with UE between mobile management unit and the source base station, then mobile management unit sends UE context release request, wherein carries the indication of the local link information of release and the user ID of UE.After source base station was received this message, according to the user ID of this indication and UE, the inner local access network of notice closed module, with the locally-attached context deletion of UE.Afterwards, source base station sends UE context release response, the user ID of wherein carrying UE to mobile management unit.
Need to prove, for UE with the base station in integrated local access network close function and set up local the connection, the Signalling exchange of UE and network side finishes, mobile management unit is initiated the situation of the release of Radio Resource, local link information still may be available when initiating to connect once more because of UE, be that local link information did not lose efficacy, so in the message that Radio Resource discharges, need not to carry the indication that discharges local link information.
Application example six
In the foregoing description, mobile management unit is judged the local failure reasons that connects voluntarily, wherein may comprise terminal log-down, or, this locality of described terminal connects corresponding mobile management unit or base station and changes, or the CSG that described terminal is set up under locally-attached base station is overtime.When satisfying above-mentioned reason, whether the explicit informing base station/base station from home of mobile management unit local link information.And in this embodiment, the mobile management unit information that CSG is overtime is notified to base station/base station from home, and this locality that the base station is overtime according to CSG and UE sets up connects, and judges to lose efficacy local the connection, thereby initiates the local access information process of follow-up release.
Figure 13 is an embodiment of the present invention six, and when the CSG under terminal is set up locally-attached base station was overtime, the mobile management unit informing base station discharged the flow chart of local access information.
Integrated local access network closes function and has set up local the connection in the step 1301, UE and base station;
Step 1302, because subscription data changes, attaching position register is handed down to the new subscription data of mobile management unit, perhaps by moving and safeguard that (Operation and Maintenance is called for short O﹠amp; M) the relevant setting of notifications mobile management entity change terminal.
This step may not need to carry out in this process.
Step 1303, if carried out step 1302, then the information that obtains from step 1301 of mobile management entity judges whether whether the closed user group (CSG) that terminal sets up under locally-attached base station is overtime.
If there is not execution in step 1302, then to set up the affiliated CSG in locally-attached base station according to the UE context determination terminal of own storage overtime for mobile management entity.
Two kinds of implementations are arranged herein:
A. the CSG that step 1303, mobile management entity judges terminal are set up under locally-attached base station is overtime, and terminal set up local connection, and then mobile management unit connects the context deletion by this locality of step 1304～1305 informing base stations prize UE.Advice method is consistent with the method for execution mode one, does not do here and gives unnecessary details.
B. step 1303, the CSG that the mobile management entity judges terminal is set up under locally-attached base station is overtime, then mobile management unit sends UE context release request by step 1304, and wherein carried terminal is set up the affiliated overtime indication information of CSG in locally-attached base station.This information is received in the base station, and this locality of having set up local connection judgment needs this moment deletion UE according to UE connects contextual information.
Among this mode b because local access network pass function is integrated on the base station, and do not have direct interface between the mobile management unit, so need use S1AP or RANAP that the local link information that local access network closes function is discharged by the interface between mobile management unit and the base station.
If the logic association relevant with UE arranged between mobile management unit and the base station, then mobile management unit sends UE context release request, and wherein carried terminal is set up the affiliated overtime indication information of CSG in locally-attached base station.After this message was received in the base station, according to this indication, the inner local access network of notice closed functional module, with the locally-attached context deletion of UE.Afterwards, UE context release response is returned to mobile management unit in the base station.After this process finished, the logic association relevant with UE between base station and the mobile management unit was deleted.Above-mentioned indication can utilize existing cancellation cause value, perhaps by expansion reason value, promptly sets a new cause value, perhaps realizes by newly-increased message elements.
If there be not the logic association relevant with UE between mobile management unit and the base station, then mobile management unit sends UE context release request, and wherein carried terminal is set up the affiliated overtime indication information of CSG in locally-attached base station, and the user ID of UE.After this message was received in the base station, according to the user ID of this indication and UE, the inner local access network of notice closed module, with the locally-attached context deletion of UE.Afterwards, the base station sends UE context release response, the user ID of wherein carrying UE to mobile management unit.
The user ID of UE is that mobile management unit distributes, and inserts for LTE, and the UE user ID is GUTI, inserts for GERAN/UTRAN, and the UE user ID is P-TMSI.
In above-mentioned six Application Examples, base station/base station from home can be judged the local inefficacy that connects according to the inefficacy indication of mobile management unit, also can set up local the connection by overtime indication of CSG and terminal and judge the local inefficacy that connects.
The system architecture of home base-station gateway is being arranged, more than in six application examples, transmitting all message between base station from home and the mobile management unit all needs to transmit through home base-station gateway, if and preserved locally-attached relevant information on the home base-station gateway, after receiving that then the UE context discharges request, need locally-attached context deletion, summary of the invention that other the present invention relates to and no change are not being given unnecessary details here yet.
In order to realize the local link information maintaining method of the present invention, the present invention also provides a kind of local link information maintenance system, and this system comprises that the mobile management unit that connects by network and integrated local access network close the base station of function, wherein:
Described mobile management unit sent message to the described base station of stating when the local link information that is used to judge the terminal correspondence that preserve described base station loses efficacy, and wherein carried the indication base station and deleted the indication information of the local link information of described terminal correspondence;
Particularly, described mobile management unit comprises interconnective maintenance management module and transceiver module, wherein, and described maintenance management module, whether the local link information that is used to judge the terminal correspondence of base station savepoint lost efficacy, and judged and notified described transceiver module when losing efficacy; Described transceiver module is used for response message from described base station to described base station that send message and receive, if receive the failure notification of judge module, sends in the message of described base station and carries described indication information; When the logic association not relevant with described terminal between described mobile management unit and the described base station, the described message that sends to described base station is also carried the user ID of described terminal;
The management maintenance module of described mobile management unit judges that the sight that the local link information of described terminal lost efficacy comprises described terminal log-down, and corresponding mobile management unit or the base station of connection, this locality of described terminal changes.
This locality that causes described terminal connects scene that corresponding mobile management unit or base station change and comprises that described terminal initiates position updating request, described terminal originating service request or described base station and initiate to switch.
The base station, integrated local access network closes function, is used for deleting according to described message the local link information of described terminal correspondence.
Particularly, the base station comprises interconnective transceiver module and maintenance of information module, wherein, described transceiver module is used to receive message that described mobile management unit sends and sends response message to described mobile management unit, and notifies described maintenance of information module when carrying described indication information in the message that receives;
Described maintenance of information module is according to described indication information or according to described indication information and the corresponding local link information of user ID deletion.
Certain described base station comprises that also local access network closes functional module, closes function to realize local access network.
In order to realize the local link information maintaining method of the present invention, the present invention also provides a kind of local link information maintenance system, and this system comprises that the mobile management unit that connects by network and integrated local access network close the base station of function, wherein:
Described mobile management unit is used to judge that terminal sets up CSG under locally-attached base station and send message to described base station when overtime, and wherein carried terminal is set up the overtime indication information of CSG under locally-attached base station;
Described base station is used for deleting according to the indication information of the described message received the local link information of described terminal correspondence, and returns response message to described mobile management unit.
In long term evolution access system, described base station refers to family's evolution base station (HeNB) or evolution base station (eNB), and described mobile management unit refers to Mobility Management Entity (MME); In universal land radio access web (UTRAN) or GSM/EDGE wireless telecommunications net (GERAN), described base station refers to Home eNodeB or radio network controller (RNC), and described mobile management unit is Serving GPRS Support Node (SGSN).
In the maintaining method and system of the local link information of the present invention, mobile management unit judges according to different scenes whether the local link information that preserve the base station lost efficacy, judged when losing efficacy, the corresponding local link information of informing base station deletion, invalid local link information can be cleared up in the base station that guarantees local access network integrated and close function, thereby reduced the redundant information of base station, avoided the waste of base station resource, prevented of the influence of too much redundant data base station performance.
Claims (16)
1. the maintaining method of a local link information is characterized in that, this method comprises:
A, mobile management unit judge local access network integrated and close that the local link information of the terminal correspondence that preserve the base station of function lost efficacy;
B, described mobile management unit send message to described base station, wherein carry the indication base station and delete the indication information of the local link information of described terminal correspondence;
C, described base station receive described message, delete the local link information of described terminal correspondence according to described indication information, and return response message to described mobile management unit.
2. the method for claim 1, it is characterized in that: in the steps A, described mobile management unit judges that the sight that the local link information of described terminal lost efficacy comprises described terminal log-down, or this locality of described terminal connects corresponding mobile management unit or base station and changes.
3. method as claimed in claim 2 is characterized in that: this locality that causes described terminal connects scene that corresponding mobile management unit or base station change and comprises that described terminal initiates position updating request, described terminal originating service request or described base station and initiate to switch.
4. the method for claim 1 is characterized in that: among the step B, during relevant with described terminal logic association, described message is also carried the user ID of described terminal between described mobile management unit and the described base station; Among the step C, described local link information is deleted according to described indication information and user ID in described base station.
5. the method for claim 1 is characterized in that: in the steps A, described mobile management unit judges that the closed user group (CSG) that sight that the local link information of described terminal lost efficacy comprises that described terminal sets up under locally-attached base station is overtime.
6. as each described method in the claim 1 to 5, it is characterized in that: in long term evolution access system, described base station refers to family's evolution base station (HeNB) or evolution base station (eNB), and described mobile management unit refers to Mobility Management Entity (MME); In universal land radio access web (UTRAN) or GSM/EDGE wireless telecommunications net (GERAN), described base station refers to Home eNodeB or radio network controller (RNC), and described mobile management unit is Serving GPRS Support Node (SGSN).
7. the maintaining method of a local link information,, it is characterized in that this method comprises:
A. it is overtime that mobile management unit judgement terminal is set up the affiliated CSG in locally-attached base station;
B, mobile management unit send message to described base station, and wherein carried terminal is set up the affiliated overtime indication information of CSG in locally-attached base station;
C, described base station receive described message, delete the local link information of described terminal correspondence according to described indication information, and return response message to described mobile management unit.
8. the method described in claim 7, it is characterized in that: in long term evolution access system, described base station refers to family's evolution base station (HeNB) or evolution base station (eNB), and described mobile management unit refers to Mobility Management Entity (MME); In universal land radio access web (UTRAN) or GSM/EDGE wireless telecommunications net (GERAN), described base station refers to Home eNodeB or radio network controller (RNC), and described mobile management unit is Serving GPRS Support Node (SGSN).
9. the maintenance system of a local link information is characterized in that, this system comprises that the mobile management unit that connects by network and integrated local access network close the base station of function, wherein:
Described mobile management unit sent message to the described base station of stating when the local link information that is used to judge the terminal correspondence that preserve described base station loses efficacy, and wherein carried the indication base station and deleted the indication information of the local link information of described terminal correspondence;
Described base station is used for deleting according to described message the local link information of described terminal correspondence.
10. system as claimed in claim 9 is characterized in that:
Described mobile management unit comprises interconnective maintenance management module and transceiver module, and wherein, described maintenance management module is used to judge whether the local link information of the terminal correspondence of base station savepoint lost efficacy, and judges and notified described transceiver module when losing efficacy; Described transceiver module is used for response message from described base station to described base station that send message and receive, if receive the failure notification of judge module, sends in the message of described base station and carries described indication information; When the logic association not relevant with described terminal between described mobile management unit and the described base station, the described message that sends to described base station is also carried the user ID of described terminal;
Described base station comprises interconnective transceiver module and maintenance of information module, wherein, described transceiver module is used to receive message that described mobile management unit sends and sends response message to described mobile management unit, and notifies described maintenance of information module when carrying described indication information in the message that receives; Described maintenance of information module is according to described indication information or according to described indication information and the corresponding local link information of user ID deletion.
11. system as claimed in claim 10, it is characterized in that: the management maintenance module of described mobile management unit judges that the sight that the local link information of described terminal lost efficacy comprises described terminal log-down, or corresponding mobile management unit or the base station of connection, this locality of described terminal changes.
12. system as claimed in claim 11 is characterized in that: this locality that causes described terminal connects scene that corresponding mobile management unit or base station change and comprises that described terminal initiates position updating request, described terminal originating service request or described base station and initiate to switch.
13. system as claimed in claim 10 is characterized in that: it is overtime that the management maintenance module of described mobile management unit judges that the sight of the local link information inefficacy of described terminal comprises that described terminal is set up the affiliated CSG in locally-attached base station.
14. as each described system in the claim 9 to 13, it is characterized in that: in long term evolution access system, described base station refers to family's evolution base station (HeNB) or evolution base station (eNB), and described mobile management unit refers to Mobility Management Entity (MME); In universal land radio access web (UTRAN) or GSM/EDGE wireless telecommunications net (GERAN), described base station refers to Home eNodeB or radio network controller (RNC), and described mobile management unit is Serving GPRS Support Node (SGSN).
15. the maintenance system of a local link information is characterized in that, this system comprises that the mobile management unit that connects by network and integrated local access network close the base station of function, wherein:
Described mobile management unit is used to judge that terminal sets up CSG under locally-attached base station and send message to described base station when overtime, and wherein carried terminal is set up the overtime indication information of CSG under locally-attached base station;
Described base station is used for deleting according to the described indication information that receives described message the local link information of described terminal correspondence, and returns response message to described mobile management unit.
16. the system described in claim 15 is characterized in that: in long term evolution access system, described base station refers to family's evolution base station (HeNB) or evolution base station (eNB), and described mobile management unit refers to Mobility Management Entity (MME); In universal land radio access web (UTRAN) or GSM/EDGE wireless telecommunications net (GERAN), described base station refers to Home eNodeB or radio network controller (RNC), and described mobile management unit is Serving GPRS Support Node (SGSN).
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| CN102045751B (en) | 2014-10-22 |
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