CN101998567B - 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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- CN101998567B CN101998567B CN200910091480.6A CN200910091480A CN101998567B CN 101998567 B CN101998567 B CN 101998567B CN 200910091480 A CN200910091480 A CN 200910091480A CN 101998567 B CN101998567 B CN 101998567B
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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
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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 connection Activiation method and the system of when a kind of terminal transfers connected state to, changing gateway.
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) entity and other support nodes composition.Fig. 1 is a kind of mobile communications network connection diagram in prior art, and as shown in Figure 1, Mobility Management Entity is responsible for the related work of the chain of command such as processing and the contextual management of user's mobile management of mobile management, Non-Access Stratum signaling; S-GW and P-GW belong to core net gateway, and S-GW is the accessing gateway equipment being connected with E-UTRAN, forwarding data between E-UTRAN and P-GW, and be responsible for the pending datas such as paging to carry out buffer memory; P-GW is the borde gateway of EPS and packet data network (Packet Data Network, PDN), is responsible for the access of PDN and the function such as forwarding data between EPS and PDN.
Except supporting the access of mobile core network, mobile communication system also can be supported local IP access function, possess under local IP access ability and the signing condition that allows local IP access of user at wireless side network element, can realize this locality access of terminal to other IP devices of home network or internet.In Fig. 1, setting up of local gateway can provide the providing powerful support for of local IP access technology, and local gateway can be L-SGW (local SGW, Local SGW) and L-PGW (local PGW, Local PGW), can be also independent L-PGW.
For universal terrestrial access network (Universal Terrestrial Radio Access Network, UTRAN) system, core net gateway can be Serving GPRS Support Node (Serving GPRS SupportNode, or Gateway GPRS Support Node (Gateway GPRS Support Node, GGSN) SGSN).Local gateway can be local GGSN (Local GGSN, L-GGSN) and local SGSN (Local SGSN, L-SGSN), can be also independent L-GGSN.
Base station from home is a kind of small-sized, lower powered base station, be deployed in the indoor place such as family and office, Main Function is to use the needed expense of high rate services for higher service rate being provided to user and reducing, and makes up 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 home base station system, base station from home is wireless side network element.Base station from home can be directly connected to core network (as shown in Figure 1); Fig. 2 is another kind of mobile communications network connection diagram in 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, home base-station gateway major function is: the fail safe of checking base station from home, process the registration of base station from home, and base station from home is carried out to 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 prior art, and as shown in Figure 3, when existing in the situation of home base-station gateway, local gateway also can close and establish with home base-station gateway.In addition, home base-station gateway also can close and establish with base station from home.
With Long Term Evolution (Long Term Evolution, LTE) mobile communications network framework is example, Fig. 4 is the local IP access data of mobile communication system flow diagram in 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 is the schematic flow sheet that carries out service request procedure when terminal transfers connected state to by Idle state in prior art, the flow process of carrying out service request procedure when as shown in Figure 5, terminal transfers connected state to by Idle state in prior art specifically describes as follows:
Step 501: have local IP access after terminal access to wireless communication system and connect, after this terminal enters Idle state.
Step 502: terminal sends service request information through wireless side network element to Mobility Management Entity.
Step 503: Mobility Management Entity is carried out Non-Access Stratum (Non-Access-Stratum, NAS) verification process, and this step is optional.
Step 504: Mobility Management Entity sends initial context to wireless side network element and sets up request message.
Step 505: wireless side network element is carried out radio bearer Establishing process.
Step 506: wireless side network element is responded Mobility Management Entity initial context and set up message.
Step 507: when Mobility Management Entity need to be initiated activation/foundation operation of local IP access connection, send amendment bearing request message to L-SGW.
Step 508: alternatively, L-SGW sends 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 bearing modification response message to Mobility Management Entity.
From above-mentioned flow process, connect and support that in ambulant situation, fast mobile terminal is after Target Wireless side network element at local IP, gateway is still local service gateway (L-SGW).But owing to may not there is not interface between L-SGW and Target Wireless side network element, the therefore now data transmission that cannot be well on, experiences thereby affect user.
Summary of the invention
In view of this, main purpose of the present invention is to change while providing a kind of terminal to transfer connected state to connection Activiation method and the system of gateway, can connect and support ensure in ambulant situation that data transmit, improve user's experience smoothly at local IP.
For achieving the above object, technical scheme of the present invention is achieved in that
A connection Activiation method of changing gateway when terminal transfers connected state to, comprising:
When terminal enters connected state from Idle state, Mobility Management Entity judgement need to be changed gateway, initiates the foundation/activation process of local IP access, change gateway.
Terminal also comprises step before entering connected state from Idle state: when terminal enters Idle state from connected state first, Mobility Management Entity is preserved the relevant parameter that local IP connects,
The relevant parameter that described local IP connects is: gateway type, and the local access network that local IP connects closes mark and/or local access network address, pass and/or wireless side network element ID and/or wireless side network element address.
When described terminal enters connected state from Idle state, also comprise step: terminal sends service request information by wireless side network element to Mobility Management Entity,
Described service request information is carried parameter: the local access network of this connection closes mark 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 judges that need to change gateway is: the wireless side network element of local IP access changes and current service gateway is local service gateway, or the wireless side network element of local IP access does not change and current service gateway is core net gateway.
Described Mobility Management Entity judge the wireless side network element of local IP access change for: judge by contrasting the parameter that parameter that described service request information carries and described terminal store first in the time that connected state enters Idle state, be specially: the local access network that described service request information is carried closes mark, and/or local access network closes address, and/or wireless side network element ID, and/or in wireless side network element address, have at least a corresponding parameter of storing in the time that connected state enters Idle state first from described terminal different, the wireless side network element that judges local IP access changes.
Foundation/activation process that described Mobility Management Entity is initiated local IP access is:
The wireless side network element of local IP access changes and current service gateway is local service gateway, and Mobility Management Entity is initiated the foundation/activation process of local IP access to core net gateway, is specially:
Mobility Management Entity sends carrying to core net gateway and sets up request;
Core net gateway is responded carrying and is set up response message;
The initial context that Mobility Management Entity sends to wireless side network element the tunnel information that carries core net gateway is set up request message;
Wireless side network element is carried out radio bearer Establishing process;
Wireless side network element is responded Mobility Management Entity initial context and has been set up message;
Mobility Management Entity is initiated the foundation of the forwarding tunnel between core net gateway and local service gateway;
Mobility Management Entity sends bearing modification request to core net gateway;
Core net gateway carries out after bearing modification, replys bearing modification response to Mobility Management Entity,
The wireless side network element of local IP access does not change and current service gateway is core net gateway, and foundation/activation process that Mobility Management Entity is initiated local IP access to local service gateway is specially:
Mobility Management Entity sends carrying to local service gateway and sets up request;
Local service gateway is responded carrying and is set up response message;
The initial context that Mobility Management Entity sends to wireless side network element the tunnel information that carries local service gateway is set up request message;
Wireless side network element is carried out radio bearer Establishing process;
Wireless side network element is responded Mobility Management Entity initial context and has been set up message;
Mobility Management Entity is initiated the foundation of the forwarding tunnel between core net gateway and local service gateway;
Mobility Management Entity sends bearing modification request to local service gateway;
Local service gateway carries out after bearing modification, replys bearing modification response to Mobility Management Entity.
Described core net gateway, after Mobility Management Entity sends bearing modification response, also comprises step:
Mobility Management Entity is initiated releasing session request to local service gateway;
Mobility Management Entity initiates to discharge forwarding tunnel request to local service gateway;
Mobility Management Entity initiates to discharge forwarding tunnel request to core net gateway,
Described local service gateway, after Mobility Management Entity sends bearing modification response, also comprises step:
Mobility Management Entity is initiated releasing session request to core net gateway;
Mobility Management Entity initiates to discharge forwarding tunnel request to core net gateway;
Mobility Management Entity initiates to discharge forwarding tunnel request to local service gateway.
A connection activation system of changing gateway when terminal transfers connected state to, comprises Mobility Management Entity, and described Mobility Management Entity comprises change judging unit and change performance element,
Described change judging unit, in the time that terminal enters connected state from Idle state, judges whether to change gateway, and in the time that judgement need to be changed gateway, notice change performance element;
Described change performance element, for according to the notice of change judging unit, initiates the foundation/activation process of local IP access, change gateway.
Described Mobility Management Entity also comprises local IP join dependency parameter storage unit, in the time that terminal enters Idle state from connected state first, preserves the relevant parameter that local IP connects.
This system also comprises wireless side network element, and described Mobility Management Entity also comprises service request information receiving element,
Described wireless side network element, in the time that terminal enters connected state from Idle state, sends service request information to Mobility Management Entity;
Described service request information receiving element, the service request information sending for receiving wireless side network element, and notice change judging unit;
Described change judging unit, the relevant parameter also connecting for the local IP storing according to described local IP join dependency parameter storage unit, and service request information receiving element receives the parameter of carrying in service request information, judge whether to change gateway.
This system also comprises core net gateway and local service gateway,
Described change performance element also, for according to the notice of change judging unit, sends carrying to core net gateway and sets up request;
Described core net gateway, 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, also sets up request message for the initial context that sends the tunnel information that carries core net gateway to wireless side network element;
Described wireless side network element, also carry out radio bearer Establishing process for setting up request message according to the initial context of the tunnel information that carries core net gateway from change performance element, and respond initial context to change performance element and set up message;
Described change performance element, also for initiating the foundation of the forwarding tunnel between core net gateway and local service gateway;
Described change performance element, also for sending bearing modification request to core net gateway;
Described core net gateway, also, for according to carrying out after bearing modification from the bearing modification request of change performance element, replys bearing modification response to change performance element.
Described change performance element, also, for according to the notice of change judging unit, sends carrying to local service gateway and sets up request;
Described local service gateway, also sets up response message for responding carrying to change performance element;
Described change performance element, also sets up request message for the initial context that sends the tunnel information that carries local service gateway to wireless side network element;
Described wireless side network element, also, for setting up according to the initial context of tunnel information that carries local service gateway after request message carries out radio bearer Establishing process, responds change performance element initial context and has set up message;
Described change performance element, also for sending bearing modification request to local service gateway;
Described local service gateway, also, for according to carrying out after bearing modification from the bearing modification request of change performance element, replys bearing modification response to change performance element.
Described change performance element, also for initiating releasing session request to local service gateway; And initiate to discharge forwarding tunnel request to local service gateway; And initiate to discharge forwarding tunnel request to core net gateway.
Described change performance element, also for initiating releasing session request to core net gateway; And initiate to discharge forwarding tunnel request to core net gateway; And initiate to discharge forwarding tunnel request to local service gateway.
When transferring connected state to, terminal of the present invention changes connection Activiation method and the system of gateway, connect and support mobility at local IP, and fast mobile terminal is in the situation of Target Wireless side network element, moved by judging the gateway that local IP is connected by Mobility Management Entity, so that activating local IP connects, thereby solve the problem that does not exist interface to cause data to transmit smoothly because of between L-SGW and Target Wireless side network element, effectively realize terminal and after wireless side network element changes, carried out local IP access connection activation mechanism, improved user's experience.
Brief description of the drawings
Fig. 1 is a kind of mobile communications network connection diagram in prior art;
Fig. 2 is another kind of mobile communications network connection diagram in prior art;
Fig. 3 is another mobile communications network connection diagram in prior art;
Fig. 4 is the local IP access data of mobile communication system flow diagram in prior art;
Fig. 5 is the schematic flow sheet that carries out service request procedure when terminal transfers connected state to by Idle state in prior art;
Fig. 6 is the connection Activiation method schematic flow sheet that terminal of the present invention is changed gateway while transferring connected state to;
Fig. 7 is the connection activation system structural representation that terminal of the present invention is changed gateway while transferring connected state to;
Fig. 8 is the connection Activiation method schematic flow sheet that the embodiment of the present invention 1 terminal is changed gateway while transferring connected state to;
Fig. 9 is the connection Activiation method schematic flow sheet that the embodiment of the present invention 2 terminals are changed gateway while transferring connected state to.
Embodiment
Basic thought of the present invention is: connect and support mobility at local IP, and fast mobile terminal is in the situation of Target Wireless side network element, is moved by judging the gateway that local IP is connected by Mobility Management Entity, connects to activate local IP.
Below in conjunction with accompanying drawing, the enforcement of technical scheme is described in further detail.
Fig. 6 is the connection Activiation method schematic flow sheet that terminal of the present invention is changed gateway while transferring connected state to, and as shown in Figure 6, the connection Activiation method of changing gateway when terminal of the present invention transfers connected state to generally comprises following steps:
Step 61: when terminal enters Idle state from connected state first, Mobility Management Entity is preserved the relevant parameter that local IP connects.
The relevant parameter that local IP connects generally comprises: gateway type, and local access network pass mark and/or local access network that local IP connects close the parameters such as address and/or wireless side network element ID and/or wireless side network element address.
Here, gateway type is generally local type or core net type.
Step 62: when terminal enters connected state from Idle state, send service request information by wireless side network element to Mobility Management Entity.
Service request information is generally carried: the local access network of this connection closes mark and/or local access network closes the parameters such as address and/or wireless side network element ID and/or wireless side network element address.
It should be noted that, in actual applications, when the parameter that service request information is carried should enter Idle state from connected state first with terminal, the relevant parameter that the local IP that Mobility Management Entity is preserved connects is corresponding, not corresponding in the situation that, should guarantee to meet the judgement needs of subsequent step as far as possible.
Step 63: the parameter that Mobility Management Entity is stored according to step 61, and the parameter that in step 62, service request information is carried, judge whether to change gateway, if so, execution step 64; Otherwise, execution step 65.
Mobility Management Entity judgement need to be changed gateway two kinds of situations:
1, the wireless side network element that local IP accesses changes and current service gateway is local service gateway.
2, the wireless side network element that local IP accesses does not change and current service gateway is core net gateway.
Particularly, judge by the parameter that in contrast step 62, the service request information parameter of carrying and step 61 are stored, the local access network that in step 62, service request information is carried closes mark and/or local access network closes in address and/or wireless side network element ID and/or wireless side network element address, have at least a corresponding parameter of storing from step 61 different, judge that the wireless side network element of local IP access changes.
In other words, judge the method whether terminal accesses from the wireless side network element of local IP access: can be whether comparison wireless side network element is identical with the mark/address, local access network pass of this locality preservation to the mark/address, local access network pass of Mobility Management Entity transmission, also can be whether comparison wireless side network element is identical with the wireless side network element ID/address of this locality preservation to the wireless side network element ID/address of Mobility Management Entity transmission, also can be in the situation that wireless side network element is identical with mark/address, local access network pass, it is identical that the local access network whether preserve with this locality wireless side network element ID/address that relatively wireless side network element transmits to Mobility Management Entity closes mark/address.
Step 64: Mobility Management Entity is initiated the foundation/activation process of local IP access, change gateway, flow process finishes.
Here,, if the wireless side network element of local IP access changes and current service gateway is local service gateway, Mobility Management Entity is initiated the foundation/activation process of local IP access to core net gateway; If the wireless side network element of local IP access does not change and current service gateway is core net gateway, Mobility Management Entity is initiated the foundation/activation process of local IP access to 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 to switch local service gateway to core net gateway, the initial context that Mobility Management Entity sends to wireless side network element is set up the tunnel information that carries core net gateway in request message.If Mobility Management Entity need to switch core net gateway to local service gateway, the initial context that Mobility Management Entity sends to wireless side network element is set up the tunnel information that carries local service gateway in request message.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, connect after set up/activation at local IP, Mobility Management Entity can be initiated the release of data forwarding tunnel.
Step 65: carry out prior art flow process.
It should be noted that, in the present invention, 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; Local service gateway can be L-SGW, L-SGSN etc.; Core net IAD can be P-GW, GGSN etc.; Core net gateway can be S-GW, SGSN etc.In addition, the wireless side network element of local IP access can to close address identical with local access network.
Fig. 7 is the connection activation system structural representation that terminal of the present invention is changed gateway while transferring connected state to, as shown in Figure 7, the connection activation system of changing gateway when terminal of the present invention transfers connected state to comprises: Mobility Management Entity 71, this Mobility Management Entity 71 comprises change judging unit 711 and change performance element 712
Change judging unit 711, in the time that terminal enters connected state from Idle state, judges whether to change gateway, and in the time that judgement need to be changed gateway, notice change performance element 712;
Change performance element 712, for according to the notice of change judging unit 711, initiates the foundation/activation process of local IP access, change gateway.
Mobility Management Entity 71 also comprises local IP join dependency parameter storage unit 713, in the time that terminal enters Idle state from connected state first, preserves the relevant parameter that local IP connects.
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, in the time that terminal enters connected state from Idle state, sends service request information to Mobility Management Entity 71;
Service request information receiving element 714, the service request information sending for receiving wireless side network element 72, and notice change judging unit 711;
Change judging unit 711, the also relevant parameter for connecting according to the local IP of described local IP join dependency parameter storage unit 713 storages, and service request information receiving element 714 parameter of carrying in service request information that receives, judge whether to change gateway.
This system also comprises core net gateway 73 and local service gateway 74,
Change performance element 712, also, for according to the notice of change judging unit 711, sends carrying to core net gateway 73 and sets up request;
Core net gateway 73, 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 sets up request message for the initial context that sends the tunnel information that carries core net gateway 73 to wireless side network element 72;
Wireless side network element 72, also carry out radio bearer Establishing process for setting up request message according to the initial context of the tunnel information that carries core net gateway 73 from change performance element 712, and respond initial context to change performance element 712 and set up message;
Change performance element 712, also for initiating the foundation of the forwarding tunnel between core net gateway 73 and local service gateway 74;
Change performance element 712, also for sending bearing modification request to core net gateway 73;
Core net gateway 73, also, for according to carrying out after bearing modification from the bearing modification request of change performance element 712, replys bearing modification response to change performance element 712.
Change performance element 712, also, for according to the notice of change judging unit 711, sends carrying to local service gateway 74 and sets up request;
Local service gateway 74, also sets up response message for responding carrying to change performance element 712;
Change performance element 712, also sets up request message for the initial context that sends the tunnel information that carries local service gateway 74 to wireless side network element 72;
Wireless side network element 72, also, for setting up according to the initial context of tunnel information that carries local service gateway 74 after request message carries out radio bearer Establishing process, responds change performance element 712 initial contexts and has set up message;
Change performance element 712, also for sending bearing modification request to local service gateway 74;
Local service gateway 74, also, for according to carrying out after bearing modification from the bearing modification request of change performance element 712, replys bearing modification response to change performance element 712.
Change performance element 712, also for initiating releasing session request to local service gateway 74; And initiate to discharge forwarding tunnel request to local service gateway 74; And initiate to discharge forwarding tunnel request to core net gateway 73.
Change performance element 712, also for initiating releasing session request to core net gateway 73; And initiate to discharge forwarding tunnel request to core net gateway 73; And initiate to discharge forwarding tunnel request to local service gateway 74.
Embodiment 1
The present embodiment, under the system architecture based on shown in Fig. 1, local access network close as L-SGW and L-PGW scene, carries out the flow chart of service request procedure while providing a kind of terminal to transfer connected state to by Idle state.In the present embodiment, the gateway that local IP connects is L-SGW.Fig. 8 is the connection Activiation method schematic flow sheet that the embodiment of the present invention 1 terminal is changed gateway while transferring connected state to, and as shown in Figure 8, the connection Activiation method of changing gateway when the embodiment of the present invention 1 terminal transfers connected state to comprises:
Step 801: have local IP access after terminal access to wireless communication system and connect, after this terminal enters Idle state.
When terminal is idle, Mobility Management Entity need to be preserved gateway type (local type or core net type), and the local access network that local IP connects closes the parameter such as (L-PGW) mark and/or local access network address, pass and/or wireless side network element ID and/or wireless side network element address.
Step 802: terminal sends service request information through wireless side network element to Mobility Management Entity.
The local access network that can carry this connection here, in the message that wireless side network element sends to Mobility Management Entity closes mark and/or local access network address, pass and/or wireless side network element ID and/or wireless side network element address.
Step 803: Mobility Management Entity is carried out NAS verification process.
This step is optional step.
Step 804: Mobility Management Entity judges whether to change gateway.
If Mobility Management Entity is found the wireless side network element access of terminal from non-local IP access, the wireless side network element of local IP access changes, and selects core net gateway (S-GW) to set up local IP and connects.If now the gateway of local IP access is L-SGW, switches L-SGW to S-GW and set up local IP connection.
If Mobility Management Entity is found the wireless side network element access of terminal from local IP access, the wireless side network element of local IP access does not change, and selects local service gateway (L-SGW) to set up local IP and connects.If now the gateway of local IP access is S-GW, switches S-GW to L-SGW and set up local IP connection.
Judge that terminal is whether from the method for the wireless side network element access of local IP access: it is identical to be that the local access network that carries comparison step 802 closes (L-PGW) mark/address, local access network pass of whether preserving with this locality (L-PGW) mark/address, also can be that the wireless side network element ID/address of whether preserving with this locality, the wireless side network element ID/address of carrying in comparison step 802 is identical, also can be in the situation that wireless side network element is identical with mark/address, local access network pass, it is identical that the local access network whether preserve with this locality the wireless side network element ID/address of carrying in comparison step 802 closes mark/address.
Step 805: Mobility Management Entity judgement need to be switched L-SGW to S-GW and connect, 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 wireless side network element and sets up request message.
Initial context is set up the tunnel information that carries S-GW in request message.
Step 808: wireless side network element is carried out radio bearer Establishing process.
Step 809: wireless side network element is responded Mobility Management Entity initial context and set up message.
Step 810: Mobility Management Entity is initiated the foundation of forwarding tunnel.
Here, forwarding tunnel refers to the forwarding tunnel between L-SGW and S-GW.
Step 811: Mobility Management Entity sends bearing modification request to S-GW.
Between step 812:S-GW and L-PGW, carry out bearing modification.
Step 813:S-GW replys bearing modification response to Mobility Management Entity.
Step 814: trigger by timer, Mobility Management Entity sends session releasing request to L-SGW.
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 forwarding tunnel.
Step 817:L-SGW replys forwarding tunnel to Mobility Management Entity and discharges response message.
Step 818: trigger by timer, Mobility Management Entity request S-GW discharges forwarding tunnel.
It should be noted that, the above-mentioned action triggering by timer, is not limited only to clocked flip, can also trigger by other modes such as instructions.
Step 819:S-GW replys forwarding tunnel to Mobility Management Entity and discharges response message.
Embodiment 2
The present embodiment closes under the scene for L-SGW and L-PGW at Fig. 1 system architecture, local access network, the flow process of service request procedure is provided while providing another kind of terminal to transfer connected state to by Idle state, wherein, the gateway that local IP connects is S-GW, Fig. 9 is the connection Activiation method schematic flow sheet that the embodiment of the present invention 2 terminals are changed gateway while transferring connected state to, as shown in Figure 9, the connection Activiation method of changing gateway when the embodiment of the present invention 2 terminals transfer connected state to comprises:
Step 901: have local IP access after terminal access to wireless communication system and connect, after this terminal enters Idle state.
When terminal is idle, Mobility Management Entity need to be preserved gateway type (local type or core net type), and the local access network that local IP connects closes the parameter such as (L-PGW) mark and/or local access network address, pass and/or wireless side network element ID and/or wireless side network element address.
Step 902: terminal sends service request information through wireless side network element to Mobility Management Entity.
The local access network that can carry this connection in the message that wherein wireless side network element sends to Mobility Management Entity closes mark and/or local access network address, pass and/or wireless side network element ID and/or wireless side network element address.
Step 903: Mobility Management Entity is carried out NAS verification process.
This step is optional step.
Step 904: Mobility Management Entity judges whether to change gateway.
If Mobility Management Entity is found the wireless side network element access of terminal from non-local IP access, the wireless side network element of local IP access changes, and selects core net gateway (S-GW) to set up local IP and connects.If now the gateway of local IP access is L-SGW, switches L-SGW to S-GW and set up local IP connection.
If Mobility Management Entity is found the wireless side network element access of terminal from local IP access, the wireless side network element of local IP access does not change, and selects local service gateway (L-SGW) to set up local IP and connects.If now the gateway of local IP access is S-GW, switches S-GW to L-SGW and set up local IP connection.
Judge that terminal is whether from the method for the wireless side network element access of local IP access: it is identical to be that the local access network that carries comparison step 902 closes (L-PGW) mark/address, local access network pass of whether preserving with this locality (L-PGW) mark/address, also can be that the wireless side network element ID/address of whether preserving with this locality, the wireless side network element ID/address of carrying in comparison step 902 is identical, also can be in the situation that wireless side network element is identical with mark/address, local access network pass, it is identical that the local access network whether preserve with this locality the wireless side network element ID/address of carrying in comparison step 902 closes mark/address.
Step 905: Mobility Management Entity judgement need to be switched S-GW to L-SGW and connect, 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 wireless side network element and sets up request message.
Initial context is set up the tunnel information that carries L-SGW in request message.
Step 908: wireless side network element is carried out radio bearer Establishing process.
Step 909: wireless side network element is responded Mobility Management Entity initial context and set up message.
Step 910: Mobility Management Entity is initiated the foundation of forwarding tunnel.
Here needing the forwarding tunnel of foundation, is the forwarding tunnel between L-SGW and S-GW.
Step 911: Mobility Management Entity sends bearing modification request to L-SGW.
Between step 912:L-SGW and L-PGW, carry out bearing modification.
Step 913:L-SGW replys bearing modification response to Mobility Management Entity.
Step 914: trigger by timer, Mobility Management Entity sends session releasing request to S-GW.
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 forwarding tunnel.
Step 917:S-GW replys forwarding tunnel to Mobility Management Entity and discharges response message.
Step 918: trigger by timer, Mobility Management Entity request L-SGW discharges forwarding tunnel.
It should be noted that, the above-mentioned action triggering by timer, is not limited only to clocked flip, can also trigger by other modes such as instructions.
Step 919:L-SGW replys forwarding tunnel to Mobility Management Entity and discharges response message.
For simplified characterization, the situation that above embodiment does not only exist home base-station gateway taking E-UTRAN system illustrates the mode of changing gateway after terminal transfers connected state to as example.When existing in the situation of home base-station gateway, terminal transfer to realize after connected state local IP access connect in the mode that changes of gateway similar to the above embodiments, no further details to be given herein.
The wireless side network element of the current access of terminal and local IP access corresponding wireless side network element when identical, think that the wireless side network element of local IP access does not change.
The wireless side network element of the current access of terminal and local IP access corresponding wireless side network element when different, think that the wireless side network element of local IP access changes.
It should be noted that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.
Claims (14)
1. a connection Activiation method of changing gateway when terminal transfers connected state to, is characterized in that, the method comprises:
When terminal enters connected state from Idle state, Mobility Management Entity judgement need to be changed gateway, initiates the foundation/activation process of local IP access, change gateway.
2. connection Activiation method according to claim 1, is characterized in that, terminal also comprises step before entering connected state from Idle state: when terminal enters Idle state from connected state first, Mobility Management Entity is preserved the relevant parameter that local IP connects,
The relevant parameter that described local IP connects is: the local access network that gateway type is connected with local IP closes mark/address; Or
Gateway type and wireless side network element ID/address; Or
Gateway type, local access network close mark/address and wireless side network element ID/address.
3. connection Activiation method according to claim 2, is characterized in that, when described terminal enters connected state from Idle state, also comprises step: terminal sends service request information by wireless side network element to Mobility Management Entity,
Described service request information is carried parameter: the local access network of this connection closes mark/address or wireless side network element ID/address or local access network and closes mark/address and wireless side network element ID/address.
4. connection Activiation method according to claim 3, it is characterized in that, described Mobility Management Entity judges that need to change gateway is: the wireless side network element of local IP access changes and current service gateway is local service gateway, or the wireless side network element of local IP access does not change and current service gateway is core net gateway.
5. connection Activiation method according to claim 4, it is characterized in that, described Mobility Management Entity judge the wireless side network element of local IP access change for: judge by contrasting the parameter that parameter that described service request information carries and described terminal store first in the time that connected state enters Idle state, be specially: the local access network that described service request information is carried closes mark/address, or wireless side network element ID/address, or local access network closes in mark/address and wireless side network element ID/address, have at least a corresponding parameter of storing in the time that connected state enters Idle state first from described terminal different, the wireless side network element that judges local IP access 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 of local IP access changes and current service gateway is local service gateway, and Mobility Management Entity is initiated the foundation/activation process of local IP access to core net gateway, is specially:
Mobility Management Entity sends carrying to core net gateway and sets up request;
Core net gateway is responded carrying and is set up response message;
The initial context that Mobility Management Entity sends to wireless side network element the tunnel information that carries core net gateway is set up request message;
Wireless side network element is carried out radio bearer Establishing process;
Wireless side network element is responded Mobility Management Entity initial context and has been set up message;
Mobility Management Entity is initiated the foundation of the forwarding tunnel between core net gateway and local service gateway;
Mobility Management Entity sends bearing modification request to core net gateway;
Core net gateway carries out after bearing modification, replys bearing modification response to Mobility Management Entity,
The wireless side network element of local IP access does not change and current service gateway is core net gateway, and foundation/activation process that Mobility Management Entity is initiated local IP access to local service gateway is specially:
Mobility Management Entity sends carrying to local service gateway and sets up request;
Local service gateway is responded carrying and is set up response message;
The initial context that Mobility Management Entity sends to wireless side network element the tunnel information that carries local service gateway is set up request message;
Wireless side network element is carried out radio bearer Establishing process;
Wireless side network element is responded Mobility Management Entity initial context and has been set up message;
Mobility Management Entity is initiated the foundation of the forwarding tunnel between core net gateway and local service gateway;
Mobility Management Entity sends bearing modification request to local service gateway;
Local service gateway carries out after bearing modification, replys bearing modification response to Mobility Management Entity.
7. connection Activiation method according to claim 6, is characterized in that,
Described core net gateway, after Mobility Management Entity sends bearing modification response, also comprises step:
Mobility Management Entity is initiated releasing session request to local service gateway;
Mobility Management Entity initiates to discharge forwarding tunnel request to local service gateway;
Mobility Management Entity initiates to discharge forwarding tunnel request to core net gateway,
Described local service gateway, after Mobility Management Entity sends bearing modification response, also comprises step:
Mobility Management Entity is initiated releasing session request to core net gateway;
Mobility Management Entity initiates to discharge forwarding tunnel request to core net gateway;
Mobility Management Entity initiates to discharge forwarding tunnel request to local service gateway.
8. a connection activation system of changing gateway when terminal transfers connected state to, is characterized in that, this system comprises Mobility Management Entity, and described Mobility Management Entity comprises change judging unit and change performance element,
Described change judging unit, in the time that terminal enters connected state from Idle state, judges whether to change gateway, and in the time that judgement need to be changed gateway, notice change performance element;
Described change performance element, for according to the notice of change judging unit, initiates the foundation/activation process of local IP access, 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, in the time that terminal enters Idle state from connected state first, preserves the relevant parameter that local IP connects.
10. connection activation system according to claim 9, is characterized in that, this system also comprises wireless side network element, and described Mobility Management Entity also comprises service request information receiving element,
Described wireless side network element, in the time that terminal enters connected state from Idle state, sends service request information to Mobility Management Entity;
Described service request information receiving element, the service request information sending for receiving wireless side network element, and notice change judging unit;
Described change judging unit, the relevant parameter also connecting for the local IP storing according to described local IP join dependency parameter storage unit, and service request information receiving element receives the parameter of carrying in service request information, judge whether to change gateway.
11. connection activation systems according to claim 9, is characterized in that, this system also comprises core net gateway and local service gateway,
Described change performance element also, for according to the notice of change judging unit, sends carrying to core net gateway and sets up request;
Described core net gateway, 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, also sets up request message for the initial context that sends the tunnel information that carries core net gateway to wireless side network element;
Described wireless side network element, also carry out radio bearer Establishing process for setting up request message according to the initial context of the tunnel information that carries core net gateway from change performance element, and respond initial context to change performance element and set up message;
Described change performance element, also for initiating the foundation of the forwarding tunnel between core net gateway and local service gateway;
Described change performance element, also for sending bearing modification request to core net gateway;
Described core net gateway, also, for according to carrying out after bearing modification from the bearing modification request of change performance element, replys bearing modification response to change performance element.
12. connection activation systems according to claim 11, is characterized in that,
Described change performance element, also, for according to the notice of change judging unit, sends carrying to local service gateway and sets up request;
Described local service gateway, also sets up response message for responding carrying to change performance element;
Described change performance element, also sets up request message for the initial context that sends the tunnel information that carries local service gateway to wireless side network element;
Described wireless side network element, also, for setting up according to the initial context of tunnel information that carries local service gateway after request message carries out radio bearer Establishing process, responds change performance element initial context and has set up message;
Described change performance element, also for sending bearing modification request to local service gateway;
Described local service gateway, also, for according to carrying out after bearing modification from the bearing modification request of change performance element, replys bearing modification response to change performance element.
13. connection activation systems according to claim 11, is characterized in that,
Described change performance element, also for initiating releasing session request to local service gateway; And initiate to discharge forwarding tunnel request to local service gateway; And initiate to discharge forwarding tunnel request to core net gateway.
14. connection activation systems according to claim 12, is characterized in that,
Described change performance element, also for initiating releasing session request to core net gateway; And initiate to discharge forwarding tunnel request to core net gateway; And initiate to discharge forwarding tunnel request to local service gateway.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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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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| Application Number | Priority Date | Filing Date | Title |
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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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| US20130089076A1 (en) * | 2011-04-01 | 2013-04-11 | Interdigital Patent Holdings, Inc. | Local / remote ip traffic access and selective ip traffic offload service continuity |
| US9942909B2 (en) * | 2014-02-28 | 2018-04-10 | Futurewei Technologies, Inc. | System and method for connection rehoming |
| MY189130A (en) * | 2015-09-22 | 2022-01-27 | Huawei Tech Co Ltd | Control method and local control plane device |
| CN108617034B (en) * | 2016-12-30 | 2021-02-23 | 华为技术有限公司 | Connection state control method, equipment and system for terminal |
| CN109548092B (en) | 2017-07-28 | 2021-04-09 | 华为技术有限公司 | Method, equipment and system for activating session |
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