CN101998567A - Connection activating method and connection activating system for changing service gateway during converting terminal into connection state - Google Patents
Connection activating method and connection activating system for changing service gateway during converting terminal into connection state Download PDFInfo
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- CN101998567A CN101998567A CN2009100914806A CN200910091480A CN101998567A CN 101998567 A CN101998567 A CN 101998567A CN 2009100914806 A CN2009100914806 A CN 2009100914806A CN 200910091480 A CN200910091480 A CN 200910091480A CN 101998567 A CN101998567 A CN 101998567A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/12—Reselecting a serving backbone network switching or routing node
- H04W36/125—Reselecting a serving backbone network switching or routing node involving different types of service backbones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/16—Gateway arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/06—Interfaces between hierarchically different network devices between gateways and public network devices
Abstract
The invention discloses a connection activating method for changing a service gateway during converting a terminal into a connection state, comprising the following steps of: when the terminal enters the connection state from an idle state, and a mobile management entity judges that the service gateway needs to be changed, initiating an establishing/activating flow of a local IP (Internet Protocol) access to change the service gateway. The invention correspondingly discloses a connection activating system for changing the service gateway during converting the terminal into the connection state. By the method and the system, when the terminal moves to a target wireless-side network element, the mobile management entity transfers the service gateway of local IP connection through judgment in order to activate the local IP connection, thereby solving the problem that because no interface exists between the local service gateway and the target wireless-side network element, data cannot be smoothly transmitted. The invention effectively realizes a local IP access connection activating mechanism of the terminal after the wireless-side network element is changed, thereby increasing user experience.
Description
Technical field
The present invention relates to mobile communication technology, relate in particular to the connection Activiation method and the system that change gateway when a kind of terminal transfers connected state to.
Background technology
Third generation partner program (3rd Generation Partnership Project, 3GPP) the grouping system of evolution (Evolved Packet System, EPS) by universal mobile telecommunications system land radio access web (the Evolved Universal Terrestrial Radio Access Network of evolution, E-UTRAN), mobile management unit (Mobility Management Entity, MME), gateway (Serving Gateway, S-GW), grouped data network gateway (Packet Data Network Gateway, P-GW or PDNGW), home subscriber server (Home Subscriber Server, HSS), authentication and authorization charging (the Authentication of 3GPP, Authorization and Accounting, AAA) server, "Policy and Charging Rules Function (Policy and Charging Rules Function, PCRF) form by entity and other support nodes.Fig. 1 is a kind of mobile communications network connection diagram in the prior art, and as shown in Figure 1, Mobility Management Entity is responsible for the related work of chains of command such as the processing of mobile management, Non-Access Stratum signaling and the contextual management of user's mobile management; S-GW and P-GW belong to the core net gateway, and S-GW is the accessing gateway equipment that links to each other with E-UTRAN, transmits data between E-UTRAN and P-GW, and are responsible for pending datas such as paging are carried out buffer memory; P-GW then is that (Packet Data Network, borde gateway PDN) are responsible for the access of PDN and transmit function such as data between EPS and PDN for EPS and packet data network.
Except the access of supporting mobile core network, mobile communication system also can be supported the local IP access function, possess at the wireless side network element under the condition of local IP access ability and the signatory permission of user local IP access, can realize that terminal inserts this locality of other IP devices of home network or internet.Setting up of local gateway can provide the providing powerful support for of local IP access technology among Fig. 1, and local gateway can be L-SGW (local SGW, Local SGW) and L-PGW (local PGW, Local PGW), also can be independent L-PGW.
For universal terrestrial access network (Universal Terrestrial Radio Access Network, UTRAN) system, the core net gateway can be Serving GPRS Support Node (Serving GPRS SupportNode, SGSN) or Gateway GPRS Support Node (Gateway GPRS Support Node, GGSN).Local gateway can be that (Local GGSN, L-GGSN) (Local SGSN L-SGSN), also can be independent L-GGSN to local GGSN with local SGSN.
Base station from home is a kind of small-sized, lower powered base station, be deployed in indoor places such as family and office, main effect is 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 base station from home is economical, convenient, low-power output, plug and play etc.In the family expenses base station system, base station from home is the wireless side network element.Base station from home can be directly connected to core network (as shown in Figure 1); Fig. 2 is an another kind of mobile communications network connection diagram in the prior art, as shown in Figure 2, base station from home also can be linked into core network by this logical ne of home base-station gateway, wherein, the home base-station gateway major function is: the fail safe of checking base station from home, handle the registration of base station from home, and base station from home is carried out operation maintenance management, according to Carrier Requirements configuration and control base station from home, be responsible for the data of exchcange core net and base station from home; Fig. 3 is another mobile communications network connection diagram in the prior art, and as shown in Figure 3, under the situation that has home base-station gateway, local gateway also can close with home base-station gateway and establish.In addition, home base-station gateway also can close with base station from home and establish.
With Long Term Evolution (Long Term Evolution, LTE) the mobile communications network framework is an example, Fig. 4 is the local IP incoming data stream of a mobile communication system schematic diagram in the prior art, as shown in Figure 4, the data flow that core net connects is transmitted between terminal, wireless side network element/local gateway, S-GW, P-GW, and the data flow of local IP access is transmitted between terminal, wireless side network element/local gateway.
System architecture, local access network based on Fig. 1 close the scene for L-SGW and L-PGW, the flow process of carrying out service request procedure when terminal is transferred to connected state by Idle state is introduced, Fig. 5 carries out the schematic flow sheet of service request procedure when transferring connected state for terminal in the prior art to by Idle state, the flow process of carrying out service request procedure when as shown in Figure 5, terminal transfers connected state to by Idle state in the prior art specifically describes as follows:
Step 501: have local IP access behind the terminal access to wireless communication system and connect, after this terminal enters Idle state.
Step 502: terminal sends service request information through the wireless side network element to Mobility Management Entity.
Step 503: Mobility Management Entity is carried out Non-Access Stratum, and (this step is optional for Non-Access-Stratum, NAS) verification process.
Step 504: Mobility Management Entity sends initial context to the wireless side network element and sets up request message.
Step 505: the wireless side network element is carried out radio bearer and is set up flow process.
Step 506: the wireless side network element is responded the foundation of Mobility Management Entity initial context and is finished message.
Step 507: when Mobility Management Entity need be initiated the activation that local IP access connects/foundations operation, send the modification bearing request message to L-SGW.
Step 508: alternatively, L-SGW sends the bearing modification request message to L-PGW.
Step 509: alternatively, L-PGW responds L-SGW bearing modification request response results.
Step 510:L-SGW sends the bearing modification response message to Mobility Management Entity.
By above-mentioned flow process as seen, connect under the ambulant situation of support at local IP, after terminal moved to Target Wireless side network element, gateway still was a local service gateway (L-SGW).Yet, owing to may not have interface between L-SGW and the Target Wireless side network element, the therefore data transmission that can't be well on this moment, thus influence user experience.
Summary of the invention
In view of this, the connection Activiation method and the system of change gateway when main purpose of the present invention is to provide a kind of terminal to transfer connected state to can connect at local IP and support that user experience is transmitted, improved to the guarantee data smoothly under the ambulant situation.
For achieving the above object, technical scheme of the present invention is achieved in that
The connection Activiation method of change gateway when a kind of terminal transfers connected state to comprises:
When terminal entered connected state from Idle state, Mobility Management Entity is judged needed the change gateway, then initiates foundation/activation process that local IP inserts, the change gateway.
Terminal enters from Idle state before the connected state, also comprises step: when connected state entered Idle state, Mobility Management Entity was preserved the relevant parameter that local IP connects to terminal first,
The relevant parameter that described local IP connects is: the gateway type, and the local access network that local IP connects closes sign and/or local access network address, pass and/or wireless side network element ID and/or wireless side network element address.
Described terminal is when Idle state enters connected state, and also comprise step: terminal sends service request information by the wireless side network element to Mobility Management Entity,
Described service request information is carried parameter: the local access network of this connection closes sign and/or local access network closes address and/or wireless side network element ID and/or wireless side network element address.
Described Mobility Management Entity is judged needs the change gateway to be: the wireless side network element that local IP inserts changes and the current service gateway is the local service gateway, perhaps, the wireless side network element that inserts of local IP does not change and the current service gateway is the core net gateway.
Described Mobility Management Entity judge wireless side network element that local IP inserts change for: by contrast parameter that described service request information carries and described terminal first when connected state enters Idle state stored parameters judge, be specially: the local access network that described service request information is carried closes sign, and/or local access network closes the address, and/or wireless side network element ID, and/or in the wireless side network element address, have at least a relevant parameters of when connected state enters Idle state, storing first with described terminal different, judge that then the wireless side network element that local IP inserts changes.
Foundation/activation process that described Mobility Management Entity is initiated local IP access is:
The wireless side network element that local IP inserts changes and the current service gateway is the local service gateway, and then Mobility Management Entity is initiated foundation/activation process that local IP inserts to the core net gateway, is specially:
Mobility Management Entity sends carrying to the core net gateway and sets up request;
The core net gateway is responded carrying and is set up response message;
Mobility Management Entity is set up request message to the initial context that the wireless side network element sends the tunnel information that carries the core net gateway;
The wireless side network element is carried out radio bearer and is set up flow process;
The wireless side network element is responded the foundation of Mobility Management Entity initial context and is finished message;
Mobility Management Entity is initiated the foundation in the forwarding tunnel between core net gateway and the local service gateway;
Mobility Management Entity sends the bearing modification request to the core net gateway;
After the core net gateway carries out bearing modification, reply the bearing modification response to Mobility Management Entity,
The wireless side network element that local IP inserts does not change and the current service gateway is the core net gateway, and then Mobility Management Entity is initiated foundation/activation process that local IP inserts to the local service gateway and is specially:
Mobility Management Entity sends carrying to the local service gateway and sets up request;
The local service gateway is responded carrying and is set up response message;
Mobility Management Entity is set up request message to the initial context that the wireless side network element sends the tunnel information that carries the local service gateway;
The wireless side network element is carried out radio bearer and is set up flow process;
The wireless side network element is responded the foundation of Mobility Management Entity initial context and is finished message;
Mobility Management Entity is initiated the foundation in the forwarding tunnel between core net gateway and the local service gateway;
Mobility Management Entity sends the bearing modification request to the local service gateway;
After the local service gateway carries out bearing modification, reply the bearing modification response to Mobility Management Entity.
Described core net gateway also comprises step after Mobility Management Entity sends the bearing modification response:
Mobility Management Entity initiates to discharge conversation request to the local service gateway;
Mobility Management Entity initiates to discharge the forwarding tunneled requests to the local service gateway;
Mobility Management Entity initiates to discharge the forwarding tunneled requests to the core net gateway,
Described local service gateway also comprises step after Mobility Management Entity sends the bearing modification response:
Mobility Management Entity initiates to discharge conversation request to the core net gateway;
Mobility Management Entity initiates to discharge the forwarding tunneled requests to the core net gateway;
Mobility Management Entity initiates to discharge the forwarding tunneled requests to the local service gateway.
The connection activation system of change gateway comprised Mobility Management Entity when a kind of terminal transferred connected state to, and described Mobility Management Entity comprises change judging unit and change performance element,
Described change judging unit is used in terminal need judging whether the change gateway when Idle state enters connected state, and is judging when needing the change gateway notice change performance element;
Described change performance element is used for the notice according to the change judging unit, initiates foundation/activation process that local IP inserts, the change gateway.
Described Mobility Management Entity also comprises local IP join dependency parameter storage unit, is used in terminal preserving the relevant parameter that local IP connects first when connected state enters Idle state.
This system also comprises the wireless side network element, and described Mobility Management Entity also comprises the service request information receiving element,
Described wireless side network element is used in terminal sending service request information to Mobility Management Entity when Idle state enters connected state;
Described service request information receiving element is used to receive the service request information that the wireless side network element sends, and notice change judging unit;
Described change judging unit, the relevant parameter that the local IP that also is used for storing according to described local IP join dependency parameter storage unit connects, and the service request information receiving element receives the parameter of carrying in the service request information, need to judge whether the change gateway.
This system also comprises core net gateway and local service gateway,
Described change performance element also is used for the notice according to the change judging unit, sends carrying to the core net gateway and sets up request;
Described core net gateway is used for setting up request according to the carrying of change performance element, responds carrying to described change performance element and sets up response message;
Described change performance element, the initial context that also is used for sending to the wireless side network element tunnel information carry the core net gateway is set up request message;
Described wireless side network element, also be used for carrying out radio bearer and setting up flow process, and respond initial context to the change performance element and set up and finish message according to set up request message from the initial context of the tunnel information that carries the core net gateway of change performance element;
Described change performance element also is used to initiate the foundation in the forwarding tunnel between core net gateway and the local service gateway;
Described change performance element also is used for sending the bearing modification request to the core net gateway;
Described core net gateway also is used for replying the bearing modification response according to after carrying out bearing modification from the bearing modification request of change performance element to the change performance element.
Described change performance element also is used for the notice according to the change judging unit, sends carrying to the local service gateway and sets up request;
Described local service gateway also is used for responding carrying to the change performance element and sets up response message;
Described change performance element, the initial context that also is used for sending to the wireless side network element tunnel information carry the local service gateway is set up request message;
Described wireless side network element also is used for carrying out after radio bearer sets up flow process setting up request message according to the initial context that carries the tunnel information of local service gateway, responds change performance element initial context and sets up and finish message;
Described change performance element also is used for sending the bearing modification request to the local service gateway;
Described local service gateway also is used for replying the bearing modification response according to after carrying out bearing modification from the bearing modification request of change performance element to the change performance element.
Described change performance element also is used for initiating to discharge conversation request to the local service gateway; And initiate release to the local service gateway and transmit tunneled requests; And initiate release to the core net gateway and transmit tunneled requests.
Described change performance element also is used for initiating to discharge conversation request to the core net gateway; And initiate release to the core net gateway and transmit tunneled requests; And initiate release to the local service gateway and transmit tunneled requests.
The connection Activiation method and the system of change gateway when terminal of the present invention transfers connected state to, connect the support mobility at local IP, and terminal moves under the situation of Target Wireless side network element, move by judging the gateway that local IP is connected by Mobility Management Entity, so that activating local IP connects, thereby solved the problem that does not exist interface to cause data to transmit smoothly because of between L-SGW and the Target Wireless side network element, realized that effectively terminal carries out local IP access and connect activation mechanism after the wireless side network element changes, improved user experience.
Description of drawings
Fig. 1 is a kind of mobile communications network connection diagram in the prior art;
Fig. 2 is an another kind of mobile communications network connection diagram in the prior art;
Fig. 3 is another mobile communications network connection diagram in the prior art;
Fig. 4 is the local IP incoming data stream of a mobile communication system schematic diagram in the prior art;
Fig. 5 carries out the schematic flow sheet of service request procedure when transferring connected state for terminal in the prior art to by Idle state;
The connection Activiation method schematic flow sheet of change gateway when Fig. 6 transfers connected state to for terminal of the present invention;
The connection activation system structural representation of change gateway when Fig. 7 transfers connected state to for terminal of the present invention;
The connection Activiation method schematic flow sheet of change gateway when Fig. 8 transfers connected state to for the embodiment of the invention 1 terminal;
The connection Activiation method schematic flow sheet of change gateway when Fig. 9 transfers connected state to for the embodiment of the invention 2 terminals.
Embodiment
Basic thought of the present invention is: connect at local IP and support mobility, and terminal moves under the situation of Target Wireless side network element, moved by judging the gateway that local IP is connected by Mobility Management Entity, connect so that activate local IP.
Be described in further detail below in conjunction with the enforcement of accompanying drawing technical scheme.
The connection Activiation method schematic flow sheet of change gateway when Fig. 6 transfers connected state to for terminal of the present invention, as shown in Figure 6, the connection Activiation method of change gateway generally comprised following steps when terminal of the present invention transferred connected state to:
Step 61: when connected state entered Idle state, Mobility Management Entity was preserved the relevant parameter that local IP connects to terminal first.
The relevant parameter that local IP connects generally comprises: the gateway type, and local access network pass sign and/or local access network that local IP connects close address and/or parameters such as wireless side network element ID and/or wireless side network element address.
Here, the gateway type is generally local type or core net type.
Step 62: when terminal enters connected state from Idle state, send service request information to Mobility Management Entity by the wireless side network element.
Service request information is generally carried: the local access network of this connection closes sign and/or local access network closes address and/or parameters such as wireless side network element ID and/or wireless side network element address.
Need to prove, in actual applications, the parameter that service request information is carried should with terminal first when connected state enters Idle state, the relevant parameter that the local IP that Mobility Management Entity is preserved connects is corresponding, under not corresponding situation, should guarantee to satisfy the judgement needs of subsequent step as far as possible.
Step 63: Mobility Management Entity is according to step 61 stored parameters, and the parameter that service request information is carried in the step 62, need to judge whether the change gateway, if, execution in step 64; Otherwise, execution in step 65.
Mobility Management Entity is judged needs the change gateway that two kinds of situations are arranged:
1, the wireless side network element that inserts of local IP changes and the current service gateway is the local service gateway.
2, the wireless side network element that inserts of local IP does not change and the current service gateway is the core net gateway.
Particularly, judge by parameter and step 61 stored parameters that service request information in the contrast step 62 is carried, the local access network that service request information is carried in the step 62 closes sign and/or local access network closes in address and/or wireless side network element ID and/or the wireless side network element address, have at least a relevant parameters different, judge that then the wireless side network element that local IP inserts changes with step 61 storage.
In other words, whether judge the method whether terminal inserts from the wireless side network element of local IP access: it is identical with the sign/address, local access network pass that preserve this locality to be that local access network that comparison wireless side network element transmits to Mobility Management Entity closes sign/address, also can be whether comparison wireless side network element is identical with the wireless side network element ID/address of this locality preservation to wireless side network element ID/address that Mobility Management Entity transmits, also can be to close under the identical situation in sign/address at wireless side network element and local access network, relatively whether the wireless side network element be identical with the sign/address, local access network pass of this locality preservation to wireless side network element ID/address that Mobility Management Entity transmits.
Step 64: Mobility Management Entity is initiated foundation/activation process that local IP inserts, the change gateway, and flow process finishes.
Here, if the wireless side network element that local IP inserts changes and the current service gateway is the local service gateway, then Mobility Management Entity is initiated foundation/activation process that local IP inserts to the core net gateway; If the wireless side network element that local IP inserts does not change and the current service gateway is the core net gateway, then Mobility Management Entity is initiated foundation/activation process that local IP inserts to the local service gateway.And, after radio bearer is set up, need between core net gateway and local service gateway, set up data forwarding tunnel.
If Mobility Management Entity need switch the local service gateway to the core net gateway, then Mobility Management Entity is set up the tunnel information that carries the core net gateway in the request message to the initial context that the wireless side network element sends.If Mobility Management Entity need switch the core net gateway to the local service gateway, then Mobility Management Entity is set up the tunnel information that carries the local service gateway in the request message to the initial context that the wireless side network element sends.Wherein, tunnel information comprises address and Tunnel Identifier; Tunnel Identifier can be Tunnel End Point Identifier (Tunnel End Point Identifier, TEID), GRE Key etc.
In addition, after local IP connected foundation/activation, Mobility Management Entity can be initiated the release of data forwarding tunnel.
Step 65: carry out the prior art flow process.
Need to prove, among the present invention, the wireless side network element can be base station, base station from home, radio network controller (Radio Network Controller, RNC) etc.; Mobility Management Entity can be mobile management unit (Mobility Management Entity, MME), (the Mobile SwitchingCentre of mobile switching centre, MSC), Serving GPRS Support Node (Serving GPRS Support Node, SGSN) etc.; It can be L-PGW, L-GGSN etc. that local access network closes; The local service gateway can be L-SGW, L-SGSN etc.; The core net IAD can be P-GW, GGSN etc.; The core net gateway can be S-GW, SGSN etc.In addition, the wireless side network element of local IP access can to close the address identical with local access network.
The connection activation system structural representation of change gateway when Fig. 7 transfers connected state to for terminal of the present invention, as shown in Figure 7, the connection activation system of change gateway comprised when terminal of the present invention transferred connected state to: Mobility Management Entity 71, this Mobility Management Entity 71 comprises change judging unit 711 and change performance element 712
Change judging unit 711 is used in terminal need judging whether the change gateway when Idle state enters connected state, and is judging when needing the change gateway notice change performance element 712;
Change performance element 712 is used for the notice according to change judging unit 711, initiates foundation/activation process that local IP inserts, the change gateway.
Mobility Management Entity 71 also comprises local IP join dependency parameter storage unit 713, is used in terminal preserving the relevant parameter that local IP connects first when connected state enters Idle state.
This system also comprises wireless side network element 72, and Mobility Management Entity 71 also comprises service request information receiving element 714,
Wireless side network element 72 is used in terminal sending service request information to Mobility Management Entity 71 when Idle state enters connected state;
Service request information receiving element 714 is used to receive the service request information that wireless side network element 72 sends, and notice change judging unit 711;
Change judging unit 711, also be used for relevant parameter according to the local IP connection of described local IP join dependency parameter storage unit 713 storages, and service request information receiving element 714 parameter of carrying in the service request information that receives, need to judge whether the change gateway.
This system also comprises core net gateway 73 and local service gateway 74,
Change performance element 712 also is used for the notice according to change judging unit 711, sends carrying to core net gateway 73 and sets up request;
Core net gateway 73 is used for setting up request according to the carrying of change performance element 712, responds carrying to described change performance element 712 and sets up response message;
Change performance element 712 also is used for setting up request message to the initial context that wireless side network element 72 sends the tunnel information that carries core net gateway 73;
Wireless side network element 72, also be used for carrying out radio bearer and setting up flow process, and respond initial contexts to change performance element 712 and set up and finish message according to set up request message from the initial context of the tunnel information that carries core net gateway 73 of change performance element 712;
Change performance element 712 also is used to initiate the foundation in the forwarding tunnel between core net gateway 73 and the local service gateway 74;
Change performance element 712 also is used for sending the bearing modification request to core net gateway 73;
Core net gateway 73 also is used for replying the bearing modification response according to after carrying out bearing modification from the bearing modification request of change performance element 712 to change performance element 712.
Change performance element 712 also is used for the notice according to change judging unit 711, sends carrying to local service gateway 74 and sets up request;
Local service gateway 74 also is used for responding carrying to change performance element 712 and sets up response message;
Change performance element 712 also is used for setting up request message to the initial context that wireless side network element 72 sends the tunnel information that carries local service gateway 74;
Wireless side network element 72 also is used for carrying out after radio bearer sets up flow process setting up request message according to the initial context that carries the tunnel information of local service gateway 74, responds change performance element 712 initial contexts and sets up and finish message;
Change performance element 712 also is used for sending the bearing modification request to local service gateway 74;
Local service gateway 74 also is used for replying the bearing modification response according to after carrying out bearing modification from the bearing modification request of change performance element 712 to change performance element 712.
Change performance element 712 also is used for initiating to discharge conversation request to local service gateway 74; And initiate release to local service gateway 74 and transmit tunneled requests; And initiate release to core net gateway 73 and transmit tunneled requests.
Change performance element 712 also is used for initiating to discharge conversation request to core net gateway 73; And initiate release to core net gateway 73 and transmit tunneled requests; And initiate release to local service gateway 74 and transmit tunneled requests.
Present embodiment carries out the flow chart of service request procedure when providing a kind of terminal to transfer connected state to by Idle state under closing to L-SGW and L-PGW scene based on system architecture shown in Figure 1, local access network.In the present embodiment, the gateway that local IP connects is L-SGW.The connection Activiation method schematic flow sheet of change gateway when Fig. 8 transfers connected state to for the embodiment of the invention 1 terminal, as shown in Figure 8, the connection Activiation method of change gateway comprised when the embodiment of the invention 1 terminal transferred connected state to:
Step 801: have local IP access behind the terminal access to wireless communication system and connect, after this terminal enters Idle state.
When terminal is idle, Mobility Management Entity need be preserved gateway type (local type or core net type), and the local access network that local IP connects closes (L-PGW) sign and/or local access network address, pass and/or parameters such as wireless side network element ID and/or wireless side network element address.
Step 802: terminal sends service request information through the wireless side network element to Mobility Management Entity.
Here, the wireless side network element can carry local access network pass sign and/or local access network address, pass and/or the wireless side network element ID and/or the wireless side network element address of this connection in the message that Mobility Management Entity sends.
Step 803: Mobility Management Entity is carried out the NAS verification process.
This step is an optional step.
Step 804: Mobility Management Entity judges whether to need to change gateway.
If Mobility Management Entity is found terminal and insert from the wireless side network element of non-local IP access that the wireless side network element that promptly local IP inserts changes, then select core net gateway (S-GW) to set up local IP and connect.If this moment, the gateway of local IP access was L-SGW, then switches L-SGW to S-GW and set up local IP connection.
If Mobility Management Entity is found terminal and insert from the wireless side network element of local IP access that the wireless side network element that promptly local IP inserts does not change, then select local service gateway (L-SGW) to set up local IP and connect.If this moment, the gateway of local IP access was S-GW, then switches S-GW to L-SGW and set up local IP connection.
Whether judge the method whether terminal inserts from the wireless side network element of local IP access: it is identical with (L-PGW) sign/address, local access network pass that preserve this locality to be that the local access network that carries the comparison step 802 closes (L-PGW) sign/address, also can be whether the wireless side network element ID/address of carrying in the comparison step 802 is identical with wireless side network element ID/address that preserve this locality, also can be to close under the identical situation in sign/address at wireless side network element and local access network, whether the wireless side network element ID/address of carrying in the comparison step 802 be identical with the sign/address, local access network pass of this locality preservation.
Step 805: Mobility Management Entity is judged to be needed to switch L-SGW to S-GW and connect, and then sends carrying to S-GW and sets up request.
Step 806:S-GW responds carrying and sets up response message.
Step 807: Mobility Management Entity sends initial context to the wireless side network element and sets up request message.
Initial context is set up the tunnel information that carries S-GW in the request message.
Step 808: the wireless side network element is carried out radio bearer and is set up flow process.
Step 809: the wireless side network element is responded the foundation of Mobility Management Entity initial context and is finished message.
Step 810: Mobility Management Entity initiates to transmit the foundation in tunnel.
Here, the forwarding tunnel refers to the forwarding tunnel between L-SGW and the S-GW.
Step 811: Mobility Management Entity sends the bearing modification request to S-GW.
Carry out bearing modification between step 812:S-GW and the L-PGW.
Step 813:S-GW replys the bearing modification response to Mobility Management Entity.
Step 814: trigger by timer, Mobility Management Entity sends session to L-SGW and discharges request.
Step 815:L-SGW replys session to Mobility Management Entity and discharges response message.
Step 816: trigger by timer, Mobility Management Entity request L-SGW discharges and transmits the tunnel.
Step 817:L-SGW replys to Mobility Management Entity and transmits tunnel release response message.
Step 818: trigger by timer, Mobility Management Entity request S-GW discharges and transmits the tunnel.
Need to prove that the above-mentioned action that triggers by timer is not limited only to regularly trigger, and can also wait other modes to trigger by instruction.
Step 819:S-GW replys to Mobility Management Entity and transmits tunnel release response message.
Embodiment 2
It is under the scene of L-SGW and L-PGW that present embodiment closes at Fig. 1 system architecture, local access network, the flow process of service request procedure is provided when providing another kind of terminal to transfer connected state to by Idle state, wherein, the gateway that local IP connects is S-GW, the connection Activiation method schematic flow sheet of change gateway when Fig. 9 transfers connected state to for the embodiment of the invention 2 terminals, the connection Activiation method of change gateway comprised when as shown in Figure 9, the embodiment of the invention 2 terminals transferred connected state to:
Step 901: have local IP access behind the terminal access to wireless communication system and connect, after this terminal enters Idle state.
When terminal is idle, Mobility Management Entity need be preserved gateway type (local type or core net type), and the local access network that local IP connects closes (L-PGW) sign and/or local access network address, pass and/or parameters such as wireless side network element ID and/or wireless side network element address.
Step 902: terminal sends service request information through the wireless side network element to Mobility Management Entity.
Wherein the wireless side network element can carry local access network pass sign and/or local access network address, pass and/or the wireless side network element ID and/or the wireless side network element address of this connection in the message that Mobility Management Entity sends.
Step 903: Mobility Management Entity is carried out the NAS verification process.
This step is an optional step.
Step 904: Mobility Management Entity judges whether to need to change gateway.
If Mobility Management Entity is found terminal and insert from the wireless side network element of non-local IP access that the wireless side network element that promptly local IP inserts changes, then select core net gateway (S-GW) to set up local IP and connect.If this moment, the gateway of local IP access was L-SGW, then switches L-SGW to S-GW and set up local IP connection.
If Mobility Management Entity is found terminal and insert from the wireless side network element of local IP access that the wireless side network element that promptly local IP inserts does not change, then select local service gateway (L-SGW) to set up local IP and connect.If this moment, the gateway of local IP access was S-GW, then switches S-GW to L-SGW and set up local IP connection.
Whether judge the method whether terminal inserts from the wireless side network element of local IP access: it is identical with (L-PGW) sign/address, local access network pass that preserve this locality to be that the local access network that carries the comparison step 902 closes (L-PGW) sign/address, also can be whether the wireless side network element ID/address of carrying in the comparison step 902 is identical with wireless side network element ID/address that preserve this locality, also can be to close under the identical situation in sign/address at wireless side network element and local access network, whether the wireless side network element ID/address of carrying in the comparison step 902 be identical with the sign/address, local access network pass of this locality preservation.
Step 905: Mobility Management Entity is judged to be needed to switch S-GW to L-SGW and connect, and then Mobility Management Entity sends carrying to L-SGW and sets up request.
Step 906:L-SGW responds carrying and sets up response message.
Step 907: Mobility Management Entity sends initial context to the wireless side network element and sets up request message.
Initial context is set up the tunnel information that carries L-SGW in the request message.
Step 908: the wireless side network element is carried out radio bearer and is set up flow process.
Step 909: the wireless side network element is responded the foundation of Mobility Management Entity initial context and is finished message.
Step 910: Mobility Management Entity initiates to transmit the foundation in tunnel.
Here, the forwarding tunnel that need set up is the forwarding tunnel between L-SGW and the S-GW.
Step 911: Mobility Management Entity sends the bearing modification request to L-SGW.
Carry out bearing modification between step 912:L-SGW and the L-PGW.
Step 913:L-SGW replys the bearing modification response to Mobility Management Entity.
Step 914: trigger by timer, Mobility Management Entity sends session to S-GW and discharges request.
Step 915:S-GW replys session to Mobility Management Entity and discharges response message.
Step 916: trigger by timer, Mobility Management Entity request S-GW discharges and transmits the tunnel.
Step 917:S-GW replys to Mobility Management Entity and transmits tunnel release response message.
Step 918: trigger by timer, Mobility Management Entity request L-SGW discharges and transmits the tunnel.
Need to prove that the above-mentioned action that triggers by timer is not limited only to regularly trigger, and can also wait other modes to trigger by instruction.
Step 919:L-SGW replys to Mobility Management Entity and transmits tunnel release response message.
In order to simplify description, it is the mode that example illustrates change gateway after terminal transfers connected state to that only there is not the situation of home base-station gateway in above embodiment with the E-UTRAN system.Under the situation that has home base-station gateway, terminal realizes that the mode that gateway changes in the local IP access connection is similar to the above embodiments after transferring connected state to, is not described in detail at this.
The wireless side network element of the current access of terminal and local IP insert corresponding wireless side network element when identical, think that then the wireless side network element of local IP access does not change.
The wireless side network element of the current access of terminal inserts corresponding wireless side network element not simultaneously with local IP, thinks that then the wireless side network element that local IP inserts changes.
Need to prove, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (14)
1. the connection Activiation method of change gateway when a terminal transfers connected state to is characterized in that this method comprises:
When terminal entered connected state from Idle state, Mobility Management Entity is judged needed the change gateway, then initiates foundation/activation process that local IP inserts, the change gateway.
2. connection Activiation method according to claim 1 is characterized in that, terminal enters from Idle state before the connected state, also comprises step: when connected state entered Idle state, Mobility Management Entity was preserved the relevant parameter that local IP connects to terminal first,
The relevant parameter that described local IP connects is: the gateway type, and the local access network that local IP connects closes sign and/or local access network address, pass and/or wireless side network element ID and/or wireless side network element address.
3. connection Activiation method according to claim 2 is characterized in that, described terminal is when Idle state enters connected state, and also comprise step: terminal sends service request information by the wireless side network element to Mobility Management Entity,
Described service request information is carried parameter: the local access network of this connection closes sign and/or local access network closes address and/or wireless side network element ID and/or wireless side network element address.
4. connection Activiation method according to claim 3, it is characterized in that, described Mobility Management Entity is judged needs the change gateway to be: the wireless side network element that local IP inserts changes and the current service gateway is the local service gateway, perhaps, the wireless side network element that inserts of local IP does not change and the current service gateway is the core net gateway.
5. connection Activiation method according to claim 4, it is characterized in that, described Mobility Management Entity judge wireless side network element that local IP inserts change for: by contrast parameter that described service request information carries and described terminal first when connected state enters Idle state stored parameters judge, be specially: the local access network that described service request information is carried closes sign, and/or local access network closes the address, and/or wireless side network element ID, and/or in the wireless side network element address, have at least a relevant parameters of when connected state enters Idle state, storing first with described terminal different, judge that then the wireless side network element that local IP inserts changes.
6. connection Activiation method according to claim 4 is characterized in that, foundation/activation process that described Mobility Management Entity is initiated local IP access is:
The wireless side network element that local IP inserts changes and the current service gateway is the local service gateway, and then Mobility Management Entity is initiated foundation/activation process that local IP inserts to the core net gateway, is specially:
Mobility Management Entity sends carrying to the core net gateway and sets up request;
The core net gateway is responded carrying and is set up response message;
Mobility Management Entity is set up request message to the initial context that the wireless side network element sends the tunnel information that carries the core net gateway;
The wireless side network element is carried out radio bearer and is set up flow process;
The wireless side network element is responded the foundation of Mobility Management Entity initial context and is finished message;
Mobility Management Entity is initiated the foundation in the forwarding tunnel between core net gateway and the local service gateway;
Mobility Management Entity sends the bearing modification request to the core net gateway;
After the core net gateway carries out bearing modification, reply the bearing modification response to Mobility Management Entity,
The wireless side network element that local IP inserts does not change and the current service gateway is the core net gateway, and then Mobility Management Entity is initiated foundation/activation process that local IP inserts to the local service gateway and is specially:
Mobility Management Entity sends carrying to the local service gateway and sets up request;
The local service gateway is responded carrying and is set up response message;
Mobility Management Entity is set up request message to the initial context that the wireless side network element sends the tunnel information that carries the local service gateway;
The wireless side network element is carried out radio bearer and is set up flow process;
The wireless side network element is responded the foundation of Mobility Management Entity initial context and is finished message;
Mobility Management Entity is initiated the foundation in the forwarding tunnel between core net gateway and the local service gateway;
Mobility Management Entity sends the bearing modification request to the local service gateway;
After the local service gateway carries out bearing modification, reply the bearing modification response to Mobility Management Entity.
7. connection Activiation method according to claim 6 is characterized in that,
Described core net gateway also comprises step after Mobility Management Entity sends the bearing modification response:
Mobility Management Entity initiates to discharge conversation request to the local service gateway;
Mobility Management Entity initiates to discharge the forwarding tunneled requests to the local service gateway;
Mobility Management Entity initiates to discharge the forwarding tunneled requests to the core net gateway,
Described local service gateway also comprises step after Mobility Management Entity sends the bearing modification response:
Mobility Management Entity initiates to discharge conversation request to the core net gateway;
Mobility Management Entity initiates to discharge the forwarding tunneled requests to the core net gateway;
Mobility Management Entity initiates to discharge the forwarding tunneled requests to the local service gateway.
8. the connection activation system of change gateway is characterized in that this system comprises Mobility Management Entity when a terminal transferred connected state to, and described Mobility Management Entity comprises change judging unit and change performance element,
Described change judging unit is used in terminal need judging whether the change gateway when Idle state enters connected state, and is judging when needing the change gateway notice change performance element;
Described change performance element is used for the notice according to the change judging unit, initiates foundation/activation process that local IP inserts, the change gateway.
9. connection activation system according to claim 8 is characterized in that, described Mobility Management Entity also comprises local IP join dependency parameter storage unit, is used in terminal preserving the relevant parameter that local IP connects first when connected state enters Idle state.
10. connection activation system according to claim 9 is characterized in that this system also comprises the wireless side network element, and described Mobility Management Entity also comprises the service request information receiving element,
Described wireless side network element is used in terminal sending service request information to Mobility Management Entity when Idle state enters connected state;
Described service request information receiving element is used to receive the service request information that the wireless side network element sends, and notice change judging unit;
Described change judging unit, the relevant parameter that the local IP that also is used for storing according to described local IP join dependency parameter storage unit connects, and the service request information receiving element receives the parameter of carrying in the service request information, need to judge whether the change gateway.
11. connection activation system according to claim 9 is characterized in that, this system also comprises core net gateway and local service gateway,
Described change performance element also is used for the notice according to the change judging unit, sends carrying to the core net gateway and sets up request;
Described core net gateway is used for setting up request according to the carrying of change performance element, responds carrying to described change performance element and sets up response message;
Described change performance element, the initial context that also is used for sending to the wireless side network element tunnel information carry the core net gateway is set up request message;
Described wireless side network element, also be used for carrying out radio bearer and setting up flow process, and respond initial context to the change performance element and set up and finish message according to set up request message from the initial context of the tunnel information that carries the core net gateway of change performance element;
Described change performance element also is used to initiate the foundation in the forwarding tunnel between core net gateway and the local service gateway;
Described change performance element also is used for sending the bearing modification request to the core net gateway;
Described core net gateway also is used for replying the bearing modification response according to after carrying out bearing modification from the bearing modification request of change performance element to the change performance element.
12. connection activation system according to claim 11 is characterized in that,
Described change performance element also is used for the notice according to the change judging unit, sends carrying to the local service gateway and sets up request;
Described local service gateway also is used for responding carrying to the change performance element and sets up response message;
Described change performance element, the initial context that also is used for sending to the wireless side network element tunnel information carry the local service gateway is set up request message;
Described wireless side network element also is used for carrying out after radio bearer sets up flow process setting up request message according to the initial context that carries the tunnel information of local service gateway, responds change performance element initial context and sets up and finish message;
Described change performance element also is used for sending the bearing modification request to the local service gateway;
Described local service gateway also is used for replying the bearing modification response according to after carrying out bearing modification from the bearing modification request of change performance element to the change performance element.
13. connection activation system according to claim 11 is characterized in that,
Described change performance element also is used for initiating to discharge conversation request to the local service gateway; And initiate release to the local service gateway and transmit tunneled requests; And initiate release to the core net gateway and transmit tunneled requests.
14. connection activation system according to claim 12 is characterized in that,
Described change performance element also is used for initiating to discharge conversation request to the core net gateway; And initiate release to the core net gateway and transmit tunneled requests; And initiate release to the local service gateway and transmit tunneled requests.
Priority Applications (2)
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| CN200910091480.6A CN101998567B (en) | 2009-08-21 | 2009-08-21 | Connection activating method and connection activating system for changing service gateway during converting terminal into connection state |
| PCT/CN2010/075929 WO2011020418A1 (en) | 2009-08-21 | 2010-08-12 | Connection activation method for changing serving gateway while terminal is converted to connection state and system thereof |
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| CN200910091480.6A CN101998567B (en) | 2009-08-21 | 2009-08-21 | Connection activating method and connection activating system for changing service gateway during converting terminal into connection state |
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