CN102045751B - Method and system for maintaining local connection information - Google Patents
Method and system for maintaining local connection information Download PDFInfo
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- CN102045751B CN102045751B CN201010114844.0A CN201010114844A CN102045751B CN 102045751 B CN102045751 B CN 102045751B CN 201010114844 A CN201010114844 A CN 201010114844A CN 102045751 B CN102045751 B CN 102045751B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/30—Connection release
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 connection information.
Background technology
In order to keep 3-G (Generation Three mobile communication system) in the competitiveness of the communications field, for user provides, speed is faster, lower, the more personalized Mobile Communication Service of time delay, simultaneously, reduce the operation cost of operator, 3GPP (3rd Generation Partnership Project, third generation partner program) standard operation group is just 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, referred to as HSS), Mobility Management Entity (Mobility ManagementEntity, referred to as MME), Serving GPRS Support Node (Serving GPRS Support Node, referred to as SGSN), policy charging rule function (Policy and Charging Rule Function, referred to as PCRF), gateway (Serving Gateway, referred to as S-GW), packet data gateway (PDN Gateway, referred to as P-GW) and packet data network (Packet Data Network, packet data network).Below detailed functions:
Home subscriber server, is the permanent storage place of user contracting data, is positioned at the signing home network of user.
Mobility Management Entity, be user contracting data at the storage place of current network, be responsible for the Non-Access Stratum signaling management of terminal to network, the mobile management of the safety verification function of terminal, terminal, the tracking under user's idle pulley and paging management function and bearer management.
Serving GPRS Support Node, is the business support point of GERAN and UTRAN user access core network network, similar with Mobility Management Entity in function, is responsible for user's the 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 data buffer storage under terminal idle pulley, function, Lawful Interception and packet routing and the forwarding capability of network side initiating business request; Gateway is responsible for the situation that counting user terminal is used 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 external packet data network, it is connected on internet and packet data network, the functions such as Internet protocol (Internet Protocol, referred to as the IP) 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 is served for user provides IP by the core net of operator.
Policy charging rule functional entity is the server of being responsible for providing charging control, online credit control, thresholding control, service quality (Quality of Service, referred to as QoS) tactful aspect rule in evolution system.
Wireless access network, 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 is mainly 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 upgrading, can support and gateway between S4 interface, and and mobility management unit between adopt GTPv2 agreement to carry out intercommunication.And for supporting the SGSN of 3G core net the PS territory network architecture and Fig. 1 different.Now SGSN adopts gn interface to be connected with MME, and intercommunication adopts GTPv1 agreement.SGSN can not be connected with gateway, is connected to Gateway GPRS Support Node (Gateway GPRS Support Node is called for short GGSN) directly carries out packet data network access by gn interface.
Home eNodeB (Home NodeB, referred to as HNB) 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 certain user, being deployed in the private sites such as family, group, company or school uses, be mainly for higher service rate being provided to user and reducing and use the needed expense of high rate services, make up 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, 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, the operation of Home eNodeB is carried out to maintenance management, 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 3G home base station network Organization Chart, and 3G Home eNodeB is connected to femto gateway by the Iuh interface of new definition, and femto gateway is provided to IuPS and the IuCs interface of core network packet-domain and circuit domain.For 3G network, the essential deployment of femto gateway is used for shielding and introduces the impact on terminal and network side after Home eNodeB.The optional deployment of femto gateway for LTE network, therefore LTE Home eNodeB and core net are connected with two kinds of modes, a kind of is that Home eNodeB is directly connected with core network element, and another kind is that Home eNodeB is connected with core network element by gateway, as shown in Figure 3,4.For the scene of introducing femto gateway shown in Fig. 4, femto gateway can not integrated user plane functions, between Home eNodeB and core net user plane gateway, directly sets up user's face, can make like this flattening of user's face, 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, at Home eNodeB, possess under the condition of local IP access capability and the signing permission of user local IP access, can realize this locality access of user to other IP devices of home network or internet.By local access function, can realize the shunting of Internet data service, reduce core net load, and for the access of home network device, can by core net, not forward transfer of data convenient and efficient.Local IP access function also can be used on macrocellular, and main application and Home eNodeB are similar, is to be more applied in this scene of local IP access Internet, and object is to reduce core net load.Fig. 6 and Fig. 7 have provided respectively the framework of realizing above-mentioned local access function, 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 the functions such as address assignment, charging, grouping packet filtering, policy control are provided.This network element is advised itself and existing base station from home or base stations united deployment as a logical block module in actual deployment.For macrocellular, realize local access architecture, wireless access gateway suggestion, by itself and base stations united deployment, can realize by the framework of Fig. 7.
For simplified network structure and interface message, under this framework, mobile management unit and local access network do not have direct interface between closing, 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 combined deployment, so these information can pass to local access network by the interface between mobile management unit and base station or base station from home and close.
For not having integrated local access network to close base station or the base station from home of function, if connecting, the signaling between terminal and network (comprising base station or base station from home, mobile management unit) disconnects, be that UE enters idle condition, base station or base station from home can not retain the relevant information of UE.But integrated local access network closes base station or the base station from home of function, for guarantee the UE of Idle state recover signaling and connect after the local connection of quick-recovery soon, need so local access network integrated and close the base station of function or base station from home when UE enters Idle state, still can keep some necessary local connection informations.But the movement of considering Idle state UE may cause leaving the service range that local access network closes, even if follow-up UE has recovered signaling and connected and no longer to need original local connection information, may cause like this local access network integrated and close the invalid data in the base station of function too much to affect base station performance.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of maintaining method and system of local connection information, effectively to clear up local connection information invalid in base station, improves base station performance.
In order to overcome the above problems, the invention provides a kind of maintaining method of local connection information, the method comprises:
Local connection information corresponding to terminal that preserve the base station of local access network closes function that the judgement of A, mobile management unit is integrated lost efficacy;
B, described mobile management unit send message to described base station, wherein carry the indication information that local connection information corresponding to described terminal deleted in indication base station;
C, described base station receive described message, according to described indication information, delete local connection information corresponding to described terminal, and return to response message to described mobile management unit.
Further, in steps A, described mobile management unit judges that the sight that the local connection 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 changes.
Further, this locality that causes described terminal connects scene that corresponding mobile management unit or base station change and comprises that described terminal launch position update request, described terminal originating service request or described base station initiate to switch.
Further, in step B, while the logic association not relevant to described terminal between described mobile management unit and described base station, described message is also carried the user ID of described terminal; In step C, described local connection information is deleted according to described indication information and user ID in described base station.
Further, in steps A, it is overtime that described mobile management unit judges that the sight of the local connection 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 home evolved node B (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 radio communication network (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 connection information,, the 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, according to described indication information, delete local connection information corresponding to described terminal, and return to response message to described mobile management unit.
Further, in long term evolution access system, described base station refers to home evolved node B (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 radio communication network (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 connection 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, sends message to the described base station of stating when judging that local connection information corresponding to terminal of described base station preserving lost efficacy, and wherein carries the indication information that local connection information corresponding to described terminal deleted in indication base station;
Described base station, for deleting local connection information corresponding to described terminal according to described message.
Further,
Described mobile management unit comprises interconnective maintenance management module and transceiver module, wherein, described maintenance management module, for judging whether the local connection information corresponding to terminal of base station savepoint lost efficacy, and described transceiver module is notified in judgement while losing efficacy; Described transceiver module, for the response message that sends message and receive described base station to described base station, if receive the failure notification of judge module, sends in the message of described base station and carries described indication information; Between described mobile management unit and described base station during not relevant to described terminal logic association, described in send to the message of described base station also to carry the user ID of described terminal;
Described base station comprises interconnective transceiver module and maintenance of information module, wherein, described transceiver module is for the message that receives described mobile management unit and send and send response message to described mobile management unit, and notifies described maintenance of information module while carrying described indication information in the message receiving; Described maintenance of information module is deleted corresponding local connection information according to described indication information or according to described indication information and user ID.
Further, the management maintenance module of described mobile management unit judges that the sight that the local connection 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 changes.
Further, this locality that causes described terminal connects scene that corresponding mobile management unit or base station change and comprises that described terminal launch position update request, described terminal originating service request or described base station initiate to switch.
Further, the management maintenance module of described mobile management unit judges that the CSG that sight that the local connection 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 home evolved node B (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 radio communication network (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 connection 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, for judging that terminal sets up CSG under locally-attached base station and send message to described base station when overtime, wherein carried terminal is set up the overtime indication information of CSG under locally-attached base station;
Described base station, for deleting local connection information corresponding to described terminal according to the described indication information of the described message of receiving, and returns to response message to described mobile management unit.
Further, in long term evolution access system, described base station refers to home evolved node B (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 radio communication network (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 local connection information of the present invention, mobile management unit judges according to different scenes whether the local connection information that preserve base station lost efficacy, when judgement was lost efficacy, informing base station is deleted corresponding local connection information, invalid local connection 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 the impact of too much redundant data on base station performance.
Accompanying drawing explanation
Fig. 1 is the structural representation of evolution grouping domain system.
Fig. 2 is 3G home base station network configuration diagram.
Fig. 3 is one of LTE home base station network configuration diagram.
Fig. 4 is two of LTE home base station network configuration diagram.
Fig. 5 is three of LTE home base station network configuration diagram.
Fig. 6 is one of network architecture schematic diagram of realizing local access.
Fig. 7 realizes two of the local network architecture schematic diagram accessing.
Fig. 8 is embodiment of the present invention one, and UE is under idle condition, and mobile management unit is nullified terminal, and informing base station discharges the flow chart of local access information.
Fig. 9 is embodiment of the present invention two, UE launch position update request, and mobile management unit informing base station discharges the flow chart of local access information
Figure 10 is embodiment of the present invention three, UE launch position update request, and mobile management unit informing base station discharges the flow chart of local access information.
Figure 11 is embodiment of the present invention four, UE initiating business request, and mobile management unit informing base station discharges the flow chart of local access information
Figure 12 is embodiment of the present invention five, and in handoff procedure, mobile management unit informing base station discharges the flow chart of local access information
Figure 13 is embodiment of the present invention six, and when CSG under terminal is set up locally-attached base station is overtime, informing base station discharges the flow chart of local access information.
Embodiment
The maintaining method of local connection information of the present invention and the main thought of system are, when local connection information corresponding to terminal of preserving when mobile management unit judgement base station lost efficacy, notify the base station that integrated local access network closes function to delete corresponding local connection information, invalid local connection information can be cleared up in the base station that guarantees local access network integrated and close function, prevents the impact of too much redundant data on base station performance.
The maintaining method that the invention provides a kind of local connection information comprises:
Local connection information corresponding to terminal that preserve the base station of local access network closes function that the judgement of A, mobile management unit is integrated lost efficacy;
In steps A, described mobile management unit judges that the sight that the local connection 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 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 launch position update request, described terminal originating service request or described base station initiate to switch.
B, described mobile management unit send message to described base station, wherein carry the indication information that local connection information corresponding to described terminal deleted in indication base station;
C, described base station receive described message, according to described indication information, delete local connection information corresponding to described terminal, and return to response message to described mobile management unit.
In step B, while the logic association not relevant to described terminal between described mobile management unit and described base station, described message is also carried the user ID of described terminal; In step C, described local connection 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 connection 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, according to described indication information, delete local connection information corresponding to described terminal, and return to response message to described mobile management unit.
Above-mentioned two kinds of methods, base station/base station from home can judge local Joint failure according to the Indication of Losing Efficacy of mobile management unit, also can set up and local connection judged local Joint failure by the overtime indication of CSG and terminal.
The said base station of the present invention has referred to local access network integrated closes 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, the situation of universal terrestrial access network)/GERAN (GSM/EDGE RadioAccessNetwork, GSM/EDGE wireless communication networks) access.In (LTE), described base station refers to home evolved node B (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 radio communication network (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 to the inventive method under various scenes is elaborated:
Application example one
Fig. 8 be UE under idle condition, mobile management unit is nullified terminal, notice local access network closes the execution mode that discharges local access information.
Step 801, UE has set up local connection with local access network pass function integrated in base station;
Step 802, because subscription data changes, or moves and safeguards that the attaching position register notice of (Operation andMaintenance is called for short O & M) system need to be by UE deregistration;
Step 803, mobile management unit judgement need to be nullified UE implicit expression;
The condition that judgement is nullified, can be the notification message of receiving step 802, according to the reason judgement of notice, UE implicit expression is nullified.If or not execution of step 802, mobile management unit can be preserved according to this locality so UE accessibility timer or implicit expression are nullified timer expiry, and UE implicit expression is nullified in mobile management unit judgement.
Step 804～805, mobile management unit is according to the information in the context of UE, and judgement UE has set up local connection, and mobile management unit informing base station connects context deletion by this locality of UE;
In the present invention, local access network pass function is integrated on base station, and between mobile management unit, there is no direct interface, so need to use the local connection information that S1AP or RANAP close function to local access network to discharge by the interface between mobile management unit and base station.
If there be the logic association relevant to UE between mobile management unit and base station, mobile management unit sends UE context releasing request, wherein carries the indication that discharges local connection information.Receive after this message base station, according to this indication, notifies inner local access network to close functional module, and the locally-attached context of UE is deleted.Afterwards, UE context release response is returned to mobile management unit in base station.After this process finishes, the logic association relevant to UE between base station and mobile management unit is deleted.Above-mentioned indication can utilize existing cancellation cause value, or by expansion value, sets a new cause value, or realizes by newly-increased message elements.
If there is no the logic association relevant to UE between mobile management unit and base station, mobile management unit sends UE context releasing request, wherein carries the indication that discharges local connection information, and the user ID of UE.Receive after this message base station, according to the user ID of this indication and UE, notifies inner local access network to close module, and the locally-attached context of UE is deleted.Afterwards, 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 for LTE access, UE user ID is GUTI, and for GERAN/UTRAN access, UE user ID is P-TMSI.
Step 806, if UE also has the carrying of core net, mobile management unit also needs notice to delete core net carrying to core net gateway.
This process is known for those skilled in the art, does not repeat here.
Application example two
Fig. 9 is UE launch position update request, and mobile management unit notice local access network closes the execution mode one that discharges local access information.
Step 901, UE has set up local connection with local access network pass function integrated in base station;
Step 902, UE initiates to mobile management unit, to send position updating request by base station, carries the user ID of UE in request.
Step 903, mobile management unit finds source mobile management unit according to the user ID of UE, sends context request message and carries out context acquisition process.
Step 904, source mobile management unit changes and judges this locality connection that needs to discharge foundation before according to mobile management unit.
Step 905, source mobile management unit sends to mobile management unit by user's mobile management and beared information, wherein in beared information, does not comprise the local connection information of UE;
Step 906, mobile management unit is confirmed context request after receiving corresponding information.
Step 907～908, source mobile management unit is according to the information in the context of UE, and judgement UE has set up local connection, and source mobile management unit notification source base station connects context deletion by this locality of UE.
If there be the logic association relevant to UE between source mobile management unit and source base station, source mobile management unit sends UE context releasing request, wherein carries the indication that discharges local connection information.Source base station is received after this message, according to this indication, notifies inner local access network to close module, and the locally-attached context of UE is deleted.Afterwards, source base station returns to UE context release response to source mobile management unit.After this process finishes, the logic association relevant to UE between source base station and source mobile management unit is deleted.Above-mentioned indication can utilize existing cancellation cause value, or by expansion value, sets a new cause value, or realizes by newly-increased message elements.
If there is no the logic association relevant to UE between source mobile management unit and source base station, source mobile management unit sends UE context releasing request, wherein carries and discharges the indication of local connection information and the user ID of UE.Source base station is received after this message, according to the user ID of this indication and UE, notifies inner local access network to close module, and the locally-attached context of UE is deleted.Afterwards, source base station sends UE context release response, the user ID of wherein carrying UE to source mobile management unit.
Step 905～step 906 does not have strict ordinal relation with step 907～908.
Step 909, carries out follow-up position updating process.This process is known for those skilled in the art, does not repeat here.
Application example three
Figure 10 is UE launch position update request, and mobile management unit notice local access network closes the execution mode two that discharges local access information.
Step 1001, UE has set up local connection with local access network pass function integrated in base station;
Step 1002, UE initiates to mobile management unit, to send position updating request by base station, carries the user ID of UE in request.
Step 1003, mobile management unit changes and judges this locality connection that needs to discharge foundation before according to access base station.
Step 1004～1005, mobile management unit is according to the information in the context of UE, and judgement UE has set up local connection, and mobile management unit notification source base station connects context deletion by this locality of UE.
If there be the logic association relevant to UE between mobile management unit and source base station, mobile management unit sends UE context releasing request, wherein carries the indication that discharges local connection information.Source base station is received after this message, according to this indication, notifies inner local access network to close module, and the locally-attached context of UE is deleted.Afterwards, source base station returns to UE context release response to mobile management unit.After this process finishes, the logic association relevant to UE between source base station and mobile management unit is deleted.Above-mentioned indication can utilize existing cancellation reason, or by expansion value, sets a new cause value, or realizes by newly-increased message elements.
If there is no the logic association relevant to UE between mobile management unit and source base station, mobile management unit sends UE context releasing request, wherein carries and discharges the indication of local connection information and the user ID of UE.Source base station is received after this message, according to the user ID of this indication and UE, notifies inner local access network to close module, and the locally-attached context of UE is deleted.Afterwards, source base station sends UE context to mobile management unit and deletes response, the user ID of wherein carrying UE.
Step 1006, carries out follow-up position updating process.If in position updating process, mobile management unit is that terminal is set up wireless side carrying, does not wherein comprise locally-attached bearer context.This process is known for those skilled in the art, does not repeat here.
Application example four
Figure 11 is UE initiating business request, and mobile management unit notice local access network closes the execution mode that discharges local access information.
Step 1101, UE has set up local connection with local access network pass function integrated in base station;
Step 1102, UE initiates to mobile management unit, to send service request by base station, carries the user ID of UE in request.
Step 1103, mobile management unit changes and judges this locality connection that needs to discharge foundation before according to access base station.
Step 1104～1105, mobile management unit is according to the information in the context of UE, and judgement UE has set up local connection, and mobile management unit notification source base station connects context deletion by this locality of UE.
If there be the logic association relevant to UE between mobile management unit and source base station, mobile management unit sends UE context releasing request, wherein carries the indication that discharges local connection information.Source base station is received after this message, according to this indication, notifies inner local access network to close module, and the locally-attached context of UE is deleted.Afterwards, source base station returns to UE context release response to mobile management unit.After this process finishes, the logic association relevant to UE between source base station and mobile management unit is deleted.Above-mentioned indication can utilize existing cancellation cause value, or by expansion value, sets a new cause value, or realizes by newly-increased message elements.
If there is no the logic association relevant to UE between mobile management unit and source base station, mobile management unit sends UE context releasing request, wherein carries and discharges the indication of local connection information and the user ID of UE.Source base station is received after this message, according to the user ID of this indication and UE, notifies inner local access network to close module, and the locally-attached context of UE is deleted.Afterwards, source base station sends UE context release response, the user ID of wherein carrying UE to mobile management unit.
Step 1106, carries out follow-up service request process.This process is known for those skilled in the art, does not repeat here.
Core net gateway in above application example one to four refers to the GGSN/SGW/PGW that is positioned at core net, and this network element is unrelated to the invention, does not do too much restriction here.
Application example five
Figure 12 is that handover request is initiated in base station, and mobile management unit notice local access network closes the execution mode that discharges local access information.
Step 1201, UE has set up local connection with local access network pass function integrated in base station;
Step 1202, source base station, according to the measurement parameter of wireless side, determines to initiate switching flow.Source base station sends handover request to source mobile management unit, wherein comprises the information that source base station need to send to target BS, target BS sign.
Step 1203, source mobile management unit changes and judges this locality connection that needs to discharge foundation before according to access base station.
If source mobile management unit is found to be connected to target BS, source mobile management unit is according to new mobile management unit of target BS Information Selection, otherwise the target mobile management unit in figure and source mobile management unit are network elements, do not need to carry out 1204 follow-up steps.
Step 1204, source mobile management unit sends and forwards handover request to target mobile management unit, wherein comprises contextual information and the beared information of UE.Wherein in beared information, do not comprise the beared information of local join dependency.
Step 1205, target mobile management unit sends handover request to target BS.
Step 1206, carries out the follow-up flow process of switching.
Step 1207～1208, after having switched, mobile management unit notification source base station connects context by this locality of UE and deletes.
If there be the logic association relevant to UE between mobile management unit and source base station, mobile management unit sends UE context releasing request, wherein carries the indication that discharges local connection information.Source base station is received after this message, according to this indication, notifies inner local access network to close module, and the locally-attached context of UE is deleted.Afterwards, source base station returns to UE context release response to mobile management unit.After this process finishes, the logic association relevant to UE between source base station and mobile management unit is deleted.Above-mentioned indication can utilize existing cancellation reason, or by expansion value, sets a new cause value, or realizes by newly-increased message elements.
If there is no the logic association relevant to UE between mobile management unit and source base station, mobile management unit sends UE context releasing request, wherein carries and discharges the indication of local connection information and the user ID of UE.Source base station is received after this message, according to the user ID of this indication and UE, notifies inner local access network to close module, and the locally-attached context of UE is deleted.Afterwards, source base station sends UE context release response, the user ID of wherein carrying UE to mobile management unit.
It should be noted that, for UE, set up local connection with local access network pass function integrated in base station, the Signalling exchange of UE and network side finishes, mobile management unit is initiated the situation of the release of Radio Resource, while again initiating to connect because of UE, local connection information still may be available, be that local connection information did not lose efficacy, thus in the message of Release radio resource without carrying the indication that discharges local connection information.
Application example six
In above-described embodiment, mobile management unit judges the reason of local Joint failure voluntarily, wherein may comprise terminal log-down, or, this locality of described terminal connects corresponding mobile management unit or base station changes, or the CSG that described terminal is set up under locally-attached base station is overtime.When meeting above-mentioned reason, whether the explicit informing base station/base station from home of mobile management unit local connection information.And in this embodiment, mobile management unit notifies the overtime information of CSG to base station/base station from home, base station connects according to CSG this locality that overtime and UE has set up, and judges local Joint failure, thereby initiates the local access information process of follow-up release.
Figure 13 is embodiment of the present invention six, and when CSG under terminal is set up locally-attached base station is overtime, mobile management unit informing base station discharges the flow chart of local access information.
Step 1301, UE has set up local connection with local access network pass function integrated in base station;
Step 1302, because subscription data changes, attaching position register is handed down to the subscription data that mobile management unit is new, or by moving and safeguard the relevant setting of (Operation and Maintenance is called for short O & M) notifications mobile management entity change terminal.
This step may not need to carry out in this process.
Step 1303, if carried out step 1302, the information that mobile management entity obtains from step 1301 judges whether that whether the closed user group (CSG) that terminal sets up under locally-attached base station is overtime.
If do not perform step 1302, the CSG that the UE context determination terminal that mobile management entity is stored according to oneself is set up under locally-attached base station is overtime.
There are two kinds of implementations herein:
A. step 1303, the CSG that mobile management entity judges terminal is set up under locally-attached base station is overtime, and terminal set up local connection, and mobile management unit this locality by step 1304～1305 informing base station prize UE connects context and deletes.Advice method is consistent with the method for execution mode one, does not repeat here.
B. step 1303, the CSG that mobile management entity judges terminal is set up under locally-attached base station is overtime, mobile management unit sends UE context releasing 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 base station, and according to UE, having set up local connection judgment now needs this locality of deleting UE to connect contextual information.
In which b, because closing function, local access network is integrated on base station, and between mobile management unit, there is no direct interface, so need to use the local connection information that S1AP or RANAP close function to local access network to discharge by the interface between mobile management unit and base station.
If there be the logic association relevant to UE between mobile management unit and base station, mobile management unit sends UE context releasing request, and wherein carried terminal is set up the affiliated overtime indication information of CSG in locally-attached base station.Receive after this message base station, according to this indication, notifies inner local access network to close functional module, and the locally-attached context of UE is deleted.Afterwards, UE context release response is returned to mobile management unit in base station.After this process finishes, the logic association relevant to UE between base station and mobile management unit is deleted.Above-mentioned indication can utilize existing cancellation cause value, or by expansion value, sets a new cause value, or realizes by newly-increased message elements.
If there is no the logic association relevant to UE between mobile management unit and base station, mobile management unit sends UE context releasing 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.Receive after this message base station, according to the user ID of this indication and UE, notifies inner local access network to close module, and the locally-attached context of UE is deleted.Afterwards, 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 for LTE access, UE user ID is GUTI, and for GERAN/UTRAN access, UE user ID is P-TMSI.
In above-mentioned six Application Examples, base station/base station from home can judge local Joint failure according to the Indication of Losing Efficacy of mobile management unit, also can set up and local connection judged local Joint failure by the overtime indication of CSG and terminal.
There iing the system architecture of home base-station gateway, in above six application examples, between base station from home and mobile management unit, transmitting all message all needs to forward through home base-station gateway, and if preserved locally-attached relevant information on home base-station gateway, receive after UE context releasing request, also need locally-attached context to delete, other summary of the invention that the present invention relates to are also unchanged, do not repeating here.
In order to realize local connection information maintaining method of the present invention, the present invention also provides a kind of local connection 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, sends message to the described base station of stating when judging that local connection information corresponding to terminal of described base station preserving lost efficacy, and wherein carries the indication information that local connection information corresponding to described terminal deleted in indication base station;
Particularly, described mobile management unit comprises interconnective maintenance management module and transceiver module, wherein, and described maintenance management module, for judging whether the local connection information corresponding to terminal of base station savepoint lost efficacy, and described transceiver module is notified in judgement while losing efficacy; Described transceiver module, for the response message that sends message and receive described base station to described base station, if receive the failure notification of judge module, sends in the message of described base station and carries described indication information; Between described mobile management unit and described base station during not relevant to described terminal logic association, described in send to the message of described base station also to carry the user ID of described terminal;
The management maintenance module of described mobile management unit judges that the sight that the local connection information of described terminal lost efficacy comprises described terminal log-down, and this locality of described terminal connects corresponding mobile management unit or base station changes.
This locality that causes described terminal connects scene that corresponding mobile management unit or base station change and comprises that described terminal launch position update request, described terminal originating service request or described base station initiate to switch.
Base station, integrated local access network closes function, for delete local connection information corresponding to described terminal according to described message.
Particularly, base station comprises interconnective transceiver module and maintenance of information module, wherein, described transceiver module is for the message that receives described mobile management unit and send and send response message to described mobile management unit, and notifies described maintenance of information module while carrying described indication information in the message receiving;
Described maintenance of information module is deleted corresponding local connection information according to described indication information or according to described indication information and user ID.
Certain described base station also comprises that local access network closes functional module, to realize local access network, closes function.
In order to realize local connection information maintaining method of the present invention, the present invention also provides a kind of local connection 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, for judging that terminal sets up CSG under locally-attached base station and send message to described base station when overtime, wherein carried terminal is set up the overtime indication information of CSG under locally-attached base station;
Described base station, for deleting local connection information corresponding to described terminal according to the indication information of the described message of receiving, and returns to response message to described mobile management unit.
In long term evolution access system, described base station refers to home evolved node B (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 radio communication network (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 local connection information of the present invention, mobile management unit judges according to different scenes whether the local connection information that preserve base station lost efficacy, when judgement was lost efficacy, informing base station is deleted corresponding local connection information, invalid local connection 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 the impact of too much redundant data on base station performance.
Claims (14)
1. a maintaining method for local connection information, is characterized in that, the method comprises:
Local connection information corresponding to terminal that preserve the base station of local access network closes function that the judgement of A, mobile management unit is integrated lost efficacy;
B, described mobile management unit send message to described base station, wherein carry the indication information that local connection information corresponding to described terminal deleted in indication base station; While the logic association not relevant to described terminal between described mobile management unit and described base station, described message is also carried the user ID of described terminal;
C, described base station receive described message;
While having the logic association relevant to described terminal between described mobile management unit and described base station, local connection information corresponding to described terminal deleted according to described indication information in described base station; While the logic association not relevant to described terminal between described mobile management unit and described base station, local connection information corresponding to described terminal deleted according to described indication information and described user ID in described base station;
Response message is returned to described mobile management unit in described base station.
2. the method for claim 1, it is characterized in that: in steps A, described mobile management unit judges that the sight that the local connection 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 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 launch position update request, described terminal originating service request or described base station initiate to switch.
4. the method for claim 1, is characterized in that: in steps A, it is overtime that described mobile management unit judges that the sight of the local connection information inefficacy of described terminal comprises that described terminal is set up the affiliated closed user group (CSG) in locally-attached base station.
5. the method as described in any one in claim 1 to 4, it is characterized in that: in long term evolution access system, described base station refers to home evolved node B (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 radio communication network (GERAN), described base station refers to Home eNodeB or radio network controller (RNC), and described mobile management unit is Serving GPRS Support Node (SGSN).
6. a maintaining method for local connection information, is characterized in that, the 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; While the logic association not relevant to described terminal between described mobile management unit and described base station, described message is also carried the user ID of described terminal;
C, described base station receive described message;
While having the logic association relevant to described terminal between described mobile management unit and described base station, local connection information corresponding to described terminal deleted according to described indication information in described base station; While the logic association not relevant to described terminal between described mobile management unit and described base station, local connection information corresponding to described terminal deleted according to described indication information and described user ID in described base station;
Response message is returned to described mobile management unit in described base station.
7. method as described in claim 6, is characterized in that: in long term evolution access system, described base station refers to home evolved node B (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 radio communication network (GERAN), described base station refers to Home eNodeB or radio network controller (RNC), and described mobile management unit is Serving GPRS Support Node (SGSN).
8. a maintenance system for local connection 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, sends message to the described base station of stating when judging that local connection information corresponding to terminal of described base station preserving lost efficacy, and wherein carries the indication information that local connection information corresponding to described terminal deleted in indication base station;
Described base station, for deleting local connection information corresponding to described terminal according to described message;
Wherein, described mobile management unit comprises interconnective maintenance management module and transceiver module, wherein, and described maintenance management module, for judging whether local connection information corresponding to terminal that preserve base station lost efficacy, and described transceiver module is notified in judgement while losing efficacy; Described transceiver module, for the response message that sends message and receive described base station to described base station, if receive the failure notification of judge module, sends in the message of described base station and carries described indication information; Between described mobile management unit and described base station during not relevant to described terminal logic association, described in send to the message of described base station also to carry the user ID of described terminal;
Described base station comprises interconnective transceiver module and maintenance of information module, wherein, described transceiver module is for the message that receives described mobile management unit and send and send response message to described mobile management unit, and notifies described maintenance of information module while carrying described indication information in the message receiving; Described maintenance of information module is deleted corresponding local connection information according to described indication information or according to described indication information and user ID.
9. system as claimed in claim 8, it is characterized in that: the management maintenance module of described mobile management unit judges that the sight that the local connection 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 changes.
10. system as claimed in claim 9, 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 launch position update request, described terminal originating service request or described base station initiate to switch.
11. systems as claimed in claim 8, is characterized in that: it is overtime that the management maintenance module of described mobile management unit judges that the sight of the local connection information inefficacy of described terminal comprises that described terminal is set up the affiliated CSG in locally-attached base station.
12. systems as described in any one in claim 8 to 11, it is characterized in that: in long term evolution access system, described base station refers to home evolved node B (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 radio communication network (GERAN), described base station refers to Home eNodeB or radio network controller (RNC), and described mobile management unit is Serving GPRS Support Node (SGSN).
The maintenance system of 13. 1 kinds of local connection informations, 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, for judging that terminal sets up CSG under locally-attached base station and send message to described base station when overtime, wherein carried terminal is set up the overtime indication information of CSG under locally-attached base station; While the logic association not relevant to described terminal between described mobile management unit and described base station, described message is also carried the user ID of described terminal;
Described base station, for when having the logic association relevant to described terminal between described mobile management unit and described base station, according to the described indication information receiving in described message, delete local connection information corresponding to described terminal, and return to response message to described mobile management unit; And for when the logic association not relevant to described terminal between described mobile management unit and described base station, local connection information corresponding to described terminal deleted according to described indication information and described user ID in described base station, and returns to response message to described mobile management unit.
14. systems as described in claim 13, is characterized in that: in long term evolution access system, described base station refers to home evolved node B (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 radio communication network (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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