CN102056129A - Establishing method and device of local Internet protocol (IP) access connection - Google Patents
Establishing method and device of local Internet protocol (IP) access connection Download PDFInfo
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- CN102056129A CN102056129A CN2009102096760A CN200910209676A CN102056129A CN 102056129 A CN102056129 A CN 102056129A CN 2009102096760 A CN2009102096760 A CN 2009102096760A CN 200910209676 A CN200910209676 A CN 200910209676A CN 102056129 A CN102056129 A CN 102056129A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
Abstract
The invention discloses an establishing method and a device of local (IP) Internet protocol access connection, wherein the establishing method of the local IP access connection comprises: a mobility management entity selects a local gateway according to parameters, wherein the parameters comprise at least one of the following: an identification of a wireless side network element, an identification of a closed subscriber group (CSG) Identification (ID), an identification of position, a tracking area identifier TAI, contract signing information and a connection type; and the mobility management entity establishes the local IP access connection through the local gateway. According to the invention, the mobility management entity selects the local gateway according to the parameters, so that the local IP access connection can be established through the selected local gateway, and the local IP access can be carried out effectively.
Description
Technical field
The present invention relates to moving communicating field, in particular to a kind of local IP access establishment of connection method and apparatus.
Background technology
Third generation partner program (3rd Generation Partnership Project, abbreviate 3GPP as) grouping system (the Evolved Packet System of evolution, abbreviate EPS as) by universal mobile telecommunications system land radio access web (the Evolved UniversalTerrestrial Radio Access Network of evolution, abbreviate E-UTRAN as), mobile management unit (Mobility Management Entity, abbreviate MME as), gateway (ServingGateway, S-GW), grouped data network gateway (Packet Data Network Gateway, abbreviate P-GW or PDN GW as), home subscriber server (Home SubscriberServer, abbreviate HSS as), authentication and authorization charging (the Authentication of 3GPP, Authorization and Accounting, abbreviate AAA as) server, "Policy and Charging Rules Function (Policy and Charging Rules Function abbreviates PCRF as) entity and other support nodes are formed.
Fig. 1 is the schematic diagram according to the EPS system architecture of correlation technique, and 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 is the accessing gateway equipment that links to each other with E-UTRAN, transmits data between E-UTRAN and P-GW, and is responsible for pending datas such as paging are carried out buffer memory; P-GW then is the borde gateway of EPS and packet data network (Packet DataNetwork abbreviates PDN as) network, and the access of being responsible for PDN reaches functions such as transmitting data between EPS and PDN; S-GW and P-GW belong to the core net gateway.
Except the access of supporting mobile core network, mobile communication system (comprising the base station from home 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.
The realization of local IP access can adopt multiple connection to set up mode: can be by setting up the access function that a connection realizes core net visit and local IP simultaneously, need not to set up local gateway this moment on the wireless side network element function; Also can provide the providing powerful support for (as shown in Figure 1) of local IP access technology by setting up local gateway, local gateway can close with the wireless side network element and establish/set up separately.Local gateway can be that (local SGW LocalSGW) and L-PGW (local PGW, Local PGW), also can be independent L-PGW or L-SGW to L-SGW.
With LTE (Long Term Evolution, Long Term Evolution) the mobile communications network framework is an example, the signal data flow that the data flow of local IP access and core net connect in the wireless communication system is described as respectively shown in Fig. 2 A, 2B, 2C: Fig. 2 A has shown that local IP access connects the scene that connects the different SGW of employing, local IP access data flow process L-SGW and L-PGW with core net; Fig. 2 B has shown that local IP access is connected to the scene in direct tunnel, and the data flow of local IP access is through L-PGW at this moment; Fig. 2 C has shown that local IP access connects the scene that is connected the same S-GW of employing, local IP access data flow process S-GW and L-PGW with core net.
Connect when the wireless side network element under the situation of a plurality of local gateways, which gateway is the existing gateway choice mechanism can't distinguish can be carried out local IP access.
Problem at can't select to be used to carry out the gateway of local IP access in the correlation technique from a plurality of local gateways does not propose effective solution at present as yet.
Summary of the invention
At the problem of the gateway that can't from a plurality of local gateways, select to be used to carry out local IP access in the correlation technique and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of local IP access establishment of connection method and apparatus, one of to address the above problem at least.
To achieve these goals, according to an aspect of the present invention, provide a kind of local IP access establishment of connection method.
Local IP access establishment of connection method according to the present invention comprises: above-mentioned Mobility Management Entity is selected local gateway according to parameter, wherein, above-mentioned parameter comprise following one of at least: the sign of above-mentioned wireless side network element, the sign CSG of closed user group (Closed SubscriberGroup, closed user group) ID, station location marker, tracking area identification symbol TAI, CAMEL-Subscription-Information, and connection type; Above-mentioned Mobility Management Entity is set up local IP access by above-mentioned local gateway and is connected.
To achieve these goals, according to a further aspect in the invention, provide a kind of local IP access establishment of connection device.
Local IP access establishment of connection device according to the present invention comprises: select module, be used for selecting local gateway according to parameter, wherein, above-mentioned parameter comprise following one of at least: the sign CSG ID of the sign of above-mentioned wireless side network element, closed user group, station location marker, tracking area identification symbol TAI, CAMEL-Subscription-Information, and connection type; Set up module, be used for setting up local IP access and connect by above-mentioned local gateway.
According to the present invention, Mobility Management Entity is selected local gateway according to parameter, makes that can set up local IP access by selected local gateway connects, thereby can carry out local IP access effectively.Further, the invention provides the method for when the core net connection is set up, selecting the core net gateway,, thereby realize that effectively connection creates a mechanism so that correct gateway selection is carried out in connection to core net.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the mobile communications network connection of correlation technique;
Fig. 2 A is the schematic diagram according to a kind of local IP incoming data stream in the mobile communication system of correlation technique;
Fig. 2 B is the schematic diagram according to the another kind of local IP incoming data stream in the mobile communication system of correlation technique;
Fig. 2 C is the schematic diagram according to another the local IP incoming data stream in the mobile communication system of correlation technique;
Fig. 3 is the flow chart according to the local IP access establishment of connection method of the embodiment of the invention;
Fig. 4 is the flow chart according to the local IP access establishment of connection method of the embodiment of the invention one;
Fig. 5 is the flow chart according to the local IP access establishment of connection method of the embodiment of the invention two;
Fig. 6 is the flow chart according to the local IP access establishment of connection method of the embodiment of the invention three;
Fig. 7 is the flow chart according to the core net establishment of connection method of the embodiment of the invention four;
Fig. 8 is the flow chart according to the local IP access establishment of connection method of the embodiment of the invention five;
Fig. 9 is the structured flowchart according to the local IP access establishment of connection device of the embodiment of the invention.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Functional overview
Consider the problem that from a plurality of local gateways, to select to be used to carry out the gateway of local IP access in the correlation technique, the invention provides a kind of local IP access establishment of connection method and apparatus.According to the solution of the present invention, Mobility Management Entity is selected local gateway according to parameter, makes that can set up local IP access by selected local gateway connects, thereby can carry out local IP access effectively.
According to embodiments of the invention, provide a kind of local IP access establishment of connection method.
Fig. 3 is the flow chart according to the local IP access establishment of connection method of the embodiment of the invention.As shown in Figure 3, this method comprises that following step S302 is to step S304:
S302, above-mentioned Mobility Management Entity is selected local gateway according to parameter, wherein, above-mentioned parameter comprise following one of at least: the sign CSG ID of the sign of above-mentioned wireless side network element, closed user group, station location marker, tracking area identification symbol TAI, CAMEL-Subscription-Information, and connection type;
S304, above-mentioned Mobility Management Entity set up local IP access by above-mentioned local gateway and connect.
Further, can adopt any following method to select local gateway:
1) above-mentioned Mobility Management Entity is selected the local gateway corresponding with sign, CSGID, station location marker or the TAI of above-mentioned wireless side network element.
2) above-mentioned Mobility Management Entity is selected the local gateway that is consistent with above-mentioned CAMEL-Subscription-Information and/or connection type.
3) above-mentioned Mobility Management Entity is selected the corresponding and local gateway that be consistent with above-mentioned CAMEL-Subscription-Information and/or connection type of sign, CSGID, station location marker or TAI with above-mentioned wireless side network element.
Preferably, above-mentioned parameter can be from the wireless side network element.
Preferably, above-mentioned local gateway comprise following one of at least: local service gateway L-SGW, local grouped data network gateway L-PGW, or local gateway GPRS Support Node L-GGSN.
Preferably, CAMEL-Subscription-Information can comprise following one of at least: whether allow CSG to carry out LIPA, whether allow CSG to carry out SIPTO (Selected IP Traffic Offload, specific IP data distribution), whether allow CSG visit core net, whether allow CSG to carry out this accessing, whether be the enterprise customer, whether be limited users, whether allow to visit grand net
Preferably, Mobility Management Entity can carry out the configuration of following this locality in advance: the corresponding relation of wireless side network element and local gateway/core net gateway, and whether local gateway and/or core net gateway can carry out LIPA and/or SIPTO and/or core net business.
Preferably, whether local gateway and/or core net gateway can be able to be carried out LIPA and/or SIPTO and/or core net business and be called the gateway ability.
Preferably, the connection type of the connection of building can be that LIPA, SIPTO or core net connect.The Rule of judgment of the connection type of building can pass through CAMEL-Subscription-Information, APN (Access PointName, APN) judges.
Further, Mobility Management Entity judges according to the relevant CAMEL-Subscription-Information of local IP access whether the user can carry out the local IP access business.
Further, the local IP access connection can be the triage operator of local IP access subscriber's local network, local IP access company local network, local IP access the Internet, Internet service, specific IP data distribution.
Be described in detail below in conjunction with the implementation procedure of example the embodiment of the invention.
In following examples, Fig. 4 to Fig. 7 has described the application scenarios based on E-UTRAN (EvolvedUniversal Terrestrial Radio Access Network, the universal mobile telecommunications system land radio access web of evolution) system.
Embodiment one
Fig. 4 is the flow chart according to the local IP access establishment of connection method of the embodiment of the invention one.Present embodiment provides a kind of local IP access establishment of connection method on the basis of as shown in Figure 1 system and the data flow shown in Fig. 2 A, this method specifically comprises the steps:
Step S401, user need to set up RRC (Radio ResourceControl, Radio Resource control) and connect the carrying as signaling message or business datum before communicating.
Step S402, user send initialization NAS (Non-Access-Stratum, Non-Access Stratum) message and carry out attach operation.
Step S403, the wireless side network element is issued Mobility Management Entity with initial user message, and transmits NAS message to Mobility Management Entity, tape base station pattern information.
Step S404, Mobility Management Entity is opened authentication and safe procedures, and the user is verified.
Step S405, Mobility Management Entity request HSS carry out the position to be upgraded.
Step S405a, HSS respond the position to Mobility Management Entity and upgrade response, can carry the relevant CAMEL-Subscription-Information of local IP access.
Step S406, Mobility Management Entity is that local IP access connects corresponding L-PGW of selection and/or L-SGW according to relevant parameter, wherein, above-mentioned parameter can comprise following one of at least: CAMEL-Subscription-Information, the sign of wireless side network element and the connection type of building that local IP access is relevant.
Mobility Management Entity selects the method for corresponding L-PGW and/or L-SGW can include but not limited to following steps: 1) can obtain the CAMEL-Subscription-Information with the local IP access join dependency, here, CAMEL-Subscription-Information can comprise following one of at least: whether allow CSG to carry out LIPA, whether allow CSG to carry out SIPTO (Selected IP Traffic Offload, specific IP data distribution), whether allow CSG visit core net, whether allow CSG to carry out this accessing, whether be the enterprise customer, whether be limited users, whether allow to visit grand net; 2) Mobility Management Entity according to the sign of wireless side network element and/or the relevant CAMEL-Subscription-Information of the connection type/local IP access of building in the configuration of this locality, select local gateway or core net gateway, for example, select local gateway or the core net gateway corresponding with the sign of wireless side network element, perhaps, local gateway or core net gateway that selection conforms to building connection type and/or CAMEL-Subscription-Information, perhaps, select corresponding with the sign of wireless side network element and local gateway or core net gateway that conform to building connection type and/or CAMEL-Subscription-Information.
Here, Mobility Management Entity can carry out the configuration of following this locality in advance: the corresponding relation of wireless side network element and local gateway/core net gateway, and whether local gateway and/or core net gateway can carry out LIPA and/or SIPTO and/or core net business.
For example, the user inserts from the base station of CSG1 and is the closed user of CSG1, if CAMEL-Subscription-Information allows CSG1 to carry out LIPA or this accessing, then Mobility Management Entity is selected local gateway and/or core net gateway corresponding with the wireless side network element, that can carry out LIPA in the configuration of this locality; If the user is signed up as limited users or enterprise customer, perhaps be signed up as the grand net of disable access, then Mobility Management Entity is selected local gateway corresponding with the wireless side network element, that can carry out LIPA in the configuration of this locality, connect so that set up local IP access, connect but can not set up core net by the local gateway of selecting.
Allowing to set up simultaneously under the situation that local IP access connects with core net is connected, also comprising according to the local IP access establishment of connection method of the embodiment of the invention:
Step S407, Mobility Management Entity sends session to L-SGW and sets up request, carries out local IP access and connects foundation.
Step S408 receives the message that Mobility Management Entity sends, and L-SGW sets up request message with session and sends to L-PGW.
Step S409, L-PGW replys session to L-SGW and sets up response.
Step S410, L-SGW sends session to Mobility Management Entity and sets up response.
Step S411, Mobility Management Entity sends session to S-GW and sets up request, carries out core net and connects foundation.
Step S412 receives the message that Mobility Management Entity sends, and S-GW sets up request message with session and sends to P-GW.P-GW replys session to S-GW and sets up response.
Step S413, S-GW sends session to Mobility Management Entity and sets up response.
Step S414, after the message of receiving step S410 and S413, Mobility Management Entity is initiated initial context to the wireless side network element and is set up request.
Step S415 carries out RRC and connects layoutprocedure.
Step S416, the wireless side network element is replied the Mobility Management Entity initial context and is set up response.
Step S417, terminal sends direct-sending message to the wireless side network element, comprises and adheres to the information of finishing.
Step S418, wireless side network element send to adhere to Mobility Management Entity and finish message.
Step S419, Mobility Management Entity is asked more new bearer to L-SGW.
Step S420, L-SGW sends the bearer update request to L-PGW.
Step S421, L-PGW responds the bearer update response to L-SGW.
Step S422, L-SGW respond Mobility Management Entity bearer update response message.
Step S423, Mobility Management Entity is asked more new bearer to S-GW.
Step S424, S-GW sends the bearer update request to P-GW.P-GW responds the bearer update response to S-GW.
Step S425, S-GW respond Mobility Management Entity bearer update response message.
Wherein, step S411 and step S407 can parallel processings, and step S419 and step S423 can parallel processings.
According to embodiment as shown in Figure 4, connect under the situation about existing at local IP access, Mobility Management Entity can be selected different gateways, and send session simultaneously to L-SGW and S-GW and set up request message (step S407 and step S411), send session updates request message (step S419 and step S423) simultaneously.Connect under the situation about setting up at follow-up dedicated bearing foundation, service request, tracing section updating, switching, release, many PDN, Mobility Management Entity all needs to send corresponding message to L-SGW and S-GW simultaneously.
Embodiment two
Fig. 5 is the flow chart according to the local IP access establishment of connection method of the embodiment of the invention two.Present embodiment be applied to as shown in Figure 1 system and the scene of the data flow shown in Fig. 2 A, local IP access establishment of connection method according to the embodiment of the invention two, be mainly used in when providing a kind of terminal to transfer connected state to by Idle state and carry out service request procedure, its concrete steps are described below:
Step S501 has local IP access and connects behind the terminal access to wireless communication system, after this terminal enters Idle state.
Step S502, terminal is initiated service request to the wireless side network element.The wireless side network element sends initial UE message to Mobility Management Entity.
Step S503 carries out NAS (Non-Access-Stratum, Non-Access Stratum) verification process, and this step is optional.
Step S504, if Mobility Management Entity judges whether to support mobility (whether L-PGW by local IP access and/or L-SGW change and judge), then Mobility Management Entity is that local IP access connects corresponding L-PGW of selection and/or L-SGW according to relevant parameter, wherein, above-mentioned parameter can comprise following one of at least: CAMEL-Subscription-Information, the sign of wireless side network element and the connection type of building that local IP access is relevant.
Here, Mobility Management Entity selects the method for corresponding L-PGW and/or L-SGW can be identical with S406.
Step S505, Mobility Management Entity sends initial context to the wireless side network element and sets up request message.
Step S506, the wireless side network element is carried out radio bearer and is set up process.
Step S507, wireless side network element respond the foundation of Mobility Management Entity initial context and finish message.
Step S508, if judge the support mobility, then Mobility Management Entity need send to L-SGW and revise bearing request message.
Step S509, alternatively, L-SGW sends the bearing modification request message to L-PGW.
Step S510, alternatively, L-PGW responds L-SGW bearing modification request response results.
Step S511, L-SGW sends the bearing modification response message to Mobility Management Entity.
In order to simplify description, the situation that above-mentioned Fig. 5 embodiment only carries out service request with the E-UTRAN system is that example illustrates the mode that Fig. 1 Mobility Management Entity is selected local gateway or core net gateway.Under other situations, as switching, tracing section updating scene (at this moment, Mobility Management Entity need obtain the information of the local gateway of Target Wireless side network element and judge mobility), the mode that Mobility Management Entity is selected local gateway or core net gateway is same as the previously described embodiments or similar, so do not repeat them here.
Embodiment three
Fig. 6 is the flow chart according to the local IP access establishment of connection method of the embodiment of the invention three.Present embodiment is mainly used in the scene in a SGW, direct tunnel, promptly, on the basis of as shown in Figure 1 system and the data flow shown in Fig. 2 B (directly tunnel), a kind of local IP access establishment of connection method is provided, this method specifically comprises the steps:
Step S601, user need to set up the carrying of RRC connection as signaling message or business datum before communicating.
Step S602, user send initialization NAS message and carry out attach operation.
Step S603, the wireless side network element is issued Mobility Management Entity with initial user message, and transmits NAS message to Mobility Management Entity, tape base station pattern information.
Step S604, Mobility Management Entity is opened authentication and safe procedures, and the user is verified.
Step S605, Mobility Management Entity request HSS carry out the position to be upgraded.
Step S606, HSS respond the position to Mobility Management Entity and upgrade response, can carry the relevant CAMEL-Subscription-Information of local IP access.
Step S607, Mobility Management Entity is that local IP access connects the corresponding L-PGW of selection according to relevant parameter, wherein, above-mentioned parameter can comprise following one of at least: CAMEL-Subscription-Information, the sign of wireless side network element and the connection type of building that local IP access is relevant.
Here, Mobility Management Entity selects the method for corresponding L-PGW can be identical with S406.In addition, present embodiment also can be applied to only select and use the situation of L-SGW.
Step S608, Mobility Management Entity sends session to L-PGW and sets up request, carries out local IP access and connects foundation.
Step S609, L-PGW replys session to Mobility Management Entity and sets up response.
Step S610, Mobility Management Entity sends session to S-GW and sets up request, carries out core net and connects foundation.
Step S611 receives the message that Mobility Management Entity sends, and S-GW sets up request message with session and sends to P-GW.P-GW replys session to S-GW and sets up response.
Step S612, S-GW sends session to Mobility Management Entity and sets up response.
Step S613, after the message of receiving step S608 and S610, Mobility Management Entity is initiated initial context to the wireless side network element and is set up request.
Step S614 carries out RRC and connects layoutprocedure.
Step S615, the wireless side network element is replied the Mobility Management Entity initial context and is set up response.
Step S616, terminal sends direct-sending message to the wireless side network element, comprises and adheres to the information of finishing.
Step S617, wireless side network element send to adhere to Mobility Management Entity and finish message.
Step S618, Mobility Management Entity sends the bearer update request to L-PGW.
Step S619, L-PGW respond Mobility Management Entity bearer update response message.
Step S620, Mobility Management Entity is asked more new bearer to S-GW.
Step S621, S-GW sends the bearer update request to P-GW.P-GW responds the bearer update response to S-GW.
Step S622, S-GW respond Mobility Management Entity bearer update response message.
Wherein, step S608 and step S610 can parallel processings, and step S618 and step S620 can parallel processings.
According to embodiment as shown in Figure 6, connect under the situation about existing at local IP access, Mobility Management Entity can be selected different gateways, and send session simultaneously to L-PGW and S-GW and set up request message (step S608 and step S610), send session updates request message (step S618 and step S620) simultaneously.Connect under the situation about setting up at follow-up dedicated bearing foundation, service request, tracing section updating, switching, release, many PDN, Mobility Management Entity all needs to send corresponding message to L-PGW and S-GW simultaneously.
Embodiment four
Fig. 7 is the flow chart according to the core net establishment of connection method of the embodiment of the invention four.Present embodiment provides a kind of core net establishment of connection method on the basis of as shown in Figure 1 system and the data flow shown in Fig. 2 C (SGW), this method specifically comprises the steps:
Step S701, user need to set up the carrying of RRC connection as signaling message or business datum before communicating.
Step S702, user send initialization NAS message and carry out attach operation.
Step S703, the wireless side network element is issued Mobility Management Entity with initial user message, and transmits NAS message to Mobility Management Entity, tape base station pattern information.
Step S704, Mobility Management Entity is opened authentication and safe procedures, and the user is verified.
Step S705, Mobility Management Entity request HSS carry out the position to be upgraded.
Step S706, HSS respond the position to Mobility Management Entity and upgrade response, can carry the relevant CAMEL-Subscription-Information of local IP access.
Step S707, Mobility Management Entity find the user have local IP access signatory (as, allow CSG to carry out LIPA, allow CSG to carry out SIPTO, allow CSG to carry out this accessing, belong to the enterprise customer, belong to limited users), be that core net connects the corresponding S-GW of selection then according to relevant parameter, wherein, above-mentioned parameter can comprise following one of at least: CAMEL-Subscription-Information, the sign of wireless side network element and the connection type of building that local IP access is relevant.
Set up local IP access if desired and connect, then select corresponding L-PGW and/or S-GW for local IP access connects.
Here, shown in Fig. 2 C, that the local IP access connection is connected employing with core net is same S-GW.In addition, Mobility Management Entity selects the method for corresponding L-PGW and/or SGW can be identical with S406.
Step S708, Mobility Management Entity sends session to S-GW and sets up request, carries out core net and connects foundation.
Step S709 receives the message that Mobility Management Entity sends, and S-GW sets up request message with session and sends to P-GW.P-GW replys session to S-GW and sets up response.
Step S710, S-GW sends session to Mobility Management Entity and sets up response.
Step S711, Mobility Management Entity is initiated initial context to the wireless side network element and is set up request.
Step S712 carries out RRC and connects layoutprocedure.
Step S713, the wireless side network element is replied the Mobility Management Entity initial context and is set up response.
Step S714, terminal sends direct-sending message to the wireless side network element, comprises and adheres to the information of finishing.
Step S715, wireless side network element send to adhere to Mobility Management Entity and finish message.
Step S716, Mobility Management Entity is asked more new bearer to S-GW.
Step S717, S-GW sends the bearer update request to P-GW.P-GW responds the bearer update response to S-GW.
Step S718, S-GW respond Mobility Management Entity bearer update response message.
Embodiment five
Fig. 8 is the flow chart according to the local IP access establishment of connection method of the embodiment of the invention five.Present embodiment is used on the basis of UTRAN system, and initial access of user carried out local IP access connection PDP (packet data protocol, Packet DataProtocol) context activation during for realization Fig. 1 system.Local IP access establishment of connection method according to the embodiment of the invention five mainly comprises the steps:
Step S801, terminal is carried out the operation that is attached to network.
Step S802, terminal sends PDP context activation message to SGSN.
Step S803, SGSN (Serving GPRS Support Node, Serving GPRS Support Node) be that local IP access connects the corresponding L-GGSN of selection (Local Gateway GPRS (General Packet Radio Service according to relevant parameter, GPRS) Support Node, the local gateway GPRS Support Node), wherein, above-mentioned parameter can comprise following one of at least: CAMEL-Subscription-Information, the sign of wireless side network element and the connection type of building that local IP access is relevant.
Here, SGSN selects the method for corresponding L-GGSN to select the method for corresponding L-PGW and/or L-SGW identical with Mobility Management Entity among the S406.
For example, select the L-GGSN corresponding, perhaps, select the L-GGSN that conforms to building connection type and/or CAMEL-Subscription-Information with the sign of wireless side network element, perhaps, select corresponding with the sign of wireless side network element and L-GGSN that conform to building connection type and/or CAMEL-Subscription-Information.
Step S804, SGSN request L-GGSN carries out context and sets up.
Step S805, L-GGSN responds context to SGSN and sets up response.
Step S806 carries out RAB and sets up flow process.
Step S807, SGSN sends the PDP Context update request to L-GGSN, carries the address and the Tunnel Identifier of wireless side network element.
Step S808, L-GGSN respond PDP Context to SGSN and upgrade response.
Step S809, SGSN return the PDP context activation response message and give terminal.
In order to simplify description, it is that example illustrates the mode that Fig. 1 Mobility Management Entity is selected local gateway or core net gateway that the foregoing description only connects PDP context activation with the situation of E-UTRAN system and UTRAN system local IP access.Under other situations, connect the scene of setting up, passing through core net S-GW when building direct tunnel as PDN, and the service request of UTRAN system, switching, tracing section updating scene are (at this moment, Mobility Management Entity need obtain the local gateway of Target Wireless side network element and judge mobility), the mode that Mobility Management Entity is selected local gateway or core net gateway is very similar to the foregoing description, can not impact, so no longer be repeated in this description at this to setting forth the present invention.
In order to simplify description, above embodiment is that example illustrates the mode that Mobility Management Entity is selected local gateway or core net gateway with the situation that does not have home base-station gateway only.Exist under the situation of home base-station gateway, local gateway and base station from home close and establish/situation about setting up separately under, Mobility Management Entity selects the mode of local gateway or core net gateway very similar to the foregoing description according to local IP access relevant CAMEL-Subscription-Information and/or wireless side network element ID, can not impact, so no longer be repeated in this description at this to setting forth the present invention.
In order to simplify description, above embodiment is that example illustrates the mode that the Mobility Management Entity among Fig. 1 is selected local gateway or core net gateway with the situation of selecting local gateway by the wireless side network element ID only, the present invention is not limited to this, for example, above embodiment can also be by CSG ID or station location marker or TAI (the TrackingArea ID from the wireless side network element, the tracking area identification symbol) selects local gateway, under these scenes, above-mentioned flow process is except the CSG ID or station location marker or TAI that the wireless side network element ID are replaced with the wireless side network element, other handling processes are identical with above embodiment, so do not repeat them here.
Among the above embodiment, the sign of wireless side network element or CSG ID or station location marker or TAI can insert or wireless side network element/local gateway sends Mobility Management Entity to by wireless side network element/local gateway when powering on the user.Send Mobility Management Entity to by local gateway when local gateway sign can local gateway powers on, and preserve the corresponding relation of wireless side network element or CSG ID or station location marker or TAI and local gateway and/or core net gateway by Mobility Management Entity.
The wireless side network element can be base station, base station from home, home base-station gateway, RNC (radio network controller, Radio Network Controller).Mobility Management Entity can be MME (mobile management unit, Mobility Management Entity), MSC (mobile switching centre, Mobile Switching Centre), SGSN (Serving GPRS Support Node, Serving GPRS Support Node).Local gateway can be L-SGW and L-PGW, or independent L-PGW, L-SGW, or L-GGSN and L-SGSN, can be independent L-GGSN, L-SGSN.The core net gateway can be S-GW, P-GW, SGSN, GGSN.
L-PGW and L-SGW can lump together setting, and both addresses can be identical; If adopt the framework of Fig. 2 C, then S-GW can lump together setting with L-PGW, and both addresses can be identical.
The Authentication Authorization server can be a user-subscribed database.
It can be the triage operator of local IP access subscriber's local network, local IP access company local network, local IP access the Internet, Internet service, specific IP data distribution that local IP access connects.
Connect when being connected shared or not shared same SGW with core net at local IP access, Mobility Management Entity can be according to the corresponding relation and/or the gateway ability of wireless side network element ID and local gateway and/or core net gateway, be whether local gateway and/or core net gateway can carry out LIPA and/or SIPTO and/or core net business, select local gateway and/or core net gateway, thereby foundation/renewal local IP access connects.
Connect when being connected shared same SGW with core net at local IP access, Mobility Management Entity can be selected local gateway and/or core net gateway according to the corresponding relation and/or the gateway ability of wireless side network element ID and local gateway and/or core net gateway, thereby foundation/renewal core net connects.
Mobility Management Entity can judge whether the user can carry out the local IP access business according to the relevant CAMEL-Subscription-Information of local IP access.
According to the present invention, Mobility Management Entity is selected local gateway according to parameter, makes that can set up local IP access by selected local gateway connects, thereby can carry out local IP access effectively.Further, the invention provides the method for when the core net connection is set up, selecting the core net gateway,, thereby realize that effectively connection creates a mechanism so that correct gateway selection is carried out in connection to core net.
According to embodiments of the invention, provide a kind of local IP access establishment of connection device.
As shown in Figure 9, this device comprises: select module 902, be used for selecting local gateway according to parameter, wherein, above-mentioned parameter comprise following one of at least: the sign CSG ID of the sign of wireless side network element, closed user group, station location marker, tracking area identification symbol TAI, CAMEL-Subscription-Information, and connection type; Set up module 904, be used for setting up local IP access and connect by above-mentioned local gateway.
Above-mentioned local gateway comprise following one of at least: local service gateway L-SGW, local grouped data network gateway L-PGW, local gateway GPRS Support Node L-GGSN.
Above-mentioned CAMEL-Subscription-Information can comprise following one of at least: whether allow CSG to carry out LIPA, whether allow CSG to carry out SIPTO (Selected IP Traffic Offload, specific IP data distribution), whether allow CSG visit core net, whether allow CSG to carry out this accessing, whether be the enterprise customer, whether be limited users, whether allow to visit grand net.
The above-mentioned module 904 of setting up can comprise: first sets up submodule, is used for setting up session between above-mentioned apparatus for establishing and above-mentioned local gateway; Second sets up submodule, is used for setting up context between above-mentioned apparatus for establishing and above-mentioned wireless side network element; Updating submodule is used between above-mentioned apparatus for establishing and above-mentioned local gateway more new bearer.
Above-mentioned selection module 902 can also be used to select the core net gateway corresponding with sign, CSG ID, station location marker or the TAI of above-mentioned wireless side network element.Accordingly, said apparatus also comprises: access module 906 is used for inserting core net by above-mentioned core net gateway.
According to the present invention, Mobility Management Entity is selected local gateway according to parameter, makes that can set up local IP access by selected local gateway connects, thereby can carry out local IP access effectively.Further, the invention provides the method for when the core net connection is set up, selecting the core net gateway,, thereby realize that effectively connection creates a mechanism so that correct gateway selection is carried out in connection to core net.
Need to prove, can in computer system, carry out in the step shown in the flow chart of accompanying drawing such as a set of computer-executable instructions, and, though there is shown logical order in flow process, but in some cases, can carry out step shown or that describe with the order that is different from herein.
Obviously, those skilled in the art should be understood that, 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 the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. a local IP access establishment of connection method is characterized in that, comprising:
Described Mobility Management Entity is selected local gateway according to parameter, wherein, described parameter comprise following one of at least: the sign CSG ID of the sign of described wireless side network element, closed user group, station location marker, tracking area identification symbol TAI, CAMEL-Subscription-Information, and connection type;
Described Mobility Management Entity is set up local IP access by described local gateway and is connected.
2. method according to claim 1 is characterized in that, described Mobility Management Entity selects local gateway to comprise according to parameter:
Described Mobility Management Entity is selected the local gateway corresponding with sign, CSGID, station location marker or the TAI of described wireless side network element.
3. method according to claim 1 is characterized in that, described Mobility Management Entity selects local gateway to comprise according to parameter:
The local gateway that described Mobility Management Entity selection is consistent with described CAMEL-Subscription-Information and/or connection type.
4. method according to claim 1 is characterized in that, described Mobility Management Entity selects local gateway to comprise according to parameter:
Described Mobility Management Entity is selected the corresponding and local gateway that be consistent with described CAMEL-Subscription-Information and/or connection type of sign, CSGID, station location marker or TAI with described wireless side network element.
5. method according to claim 1 is characterized in that, described local gateway comprise following one of at least: local service gateway L-SGW, local grouped data network gateway L-PGW, or local gateway GPRS Support Node L-GGSN.
6. according to claim 2 or 4 described methods, it is characterized in that,
Described Mobility Management Entity selects the local gateway corresponding with sign, CSGID, station location marker or the TAI of described wireless side network element to comprise:
Select L-SGW or the L-PGW corresponding with sign, CSG ID, station location marker or the TAI of described wireless side network element;
Described Mobility Management Entity is set up the local IP access connection by described local gateway and is comprised:
Set up local IP access by described L-SGW and/or L-PGW and connect, wherein, the address of described L-SGW and L-PGW is identical.
7. according to claim 2 or 4 described methods, it is characterized in that described method also comprises.
Mobility Management Entity is selected the local gateway corresponding core net gateway corresponding with sign, CSG ID, station location marker or the TAI of described wireless side network element;
Mobility Management Entity inserts core net by described core net gateway.
8. according to each described method in the claim 1 to 5, it is characterized in that described parameter is from the wireless side network element.
9. method according to claim 8 is characterized in that, described wireless side network element comprise following one of at least: base station, base station from home, home base-station gateway and radio network controller (RNC).
10. method according to claim 8 is characterized in that, described Mobility Management Entity is set up the local IP access connection by described local gateway and comprised:
Between described Mobility Management Entity and described local gateway, set up session;
Between described Mobility Management Entity and described wireless side network element, set up context;
New bearer more between described Mobility Management Entity and described local gateway.
11. according to each described method in the claim 1 to 5, it is characterized in that, described Mobility Management Entity comprise following one of at least: mobile management unit, mobile switching centre and Serving GPRS Support Node.
12. a local IP access establishment of connection device is characterized in that, comprising:
Select module, be used for selecting local gateway according to parameter, wherein, described parameter comprise following one of at least: the sign CSG ID of the sign of described wireless side network element, closed user group, station location marker, tracking area identification symbol TAI, CAMEL-Subscription-Information, and connection type;
Set up module, be used for setting up local IP access and connect by described local gateway.
13. device according to claim 12 is characterized in that, described selection module comprises:
The first chooser module is used to select sign, CSG ID, station location marker or the corresponding local gateway of TAI with described wireless side network element;
The second chooser module is used to select the local gateway that is consistent with described CAMEL-Subscription-Information and/or connection type;
The 3rd chooser module is used to select the corresponding and local gateway that be consistent with described CAMEL-Subscription-Information and/or connection type of sign, CSG ID, station location marker or TAI with described wireless side network element.
14. according to claim 12 or 13 described devices, it is characterized in that, described local gateway comprise following one of at least: local service gateway L-SGW, local grouped data network gateway L-PGW, local gateway GPRS Support Node L-GGSN.
15., it is characterized in that described selection module also is used to select the core net gateway corresponding with sign, CSG ID, station location marker or the TAI of described wireless side network element according to claim 12 or 13 described devices, described device also comprises:
Access module is used for inserting core net by described core net gateway.
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| CN2009102096760A CN102056129A (en) | 2009-11-05 | 2009-11-05 | Establishing method and device of local Internet protocol (IP) access connection |
| PCT/CN2010/078388 WO2011054294A1 (en) | 2009-11-05 | 2010-11-03 | Connection setup method and equipment |
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| WO2011054294A1 (en) | 2011-05-12 |
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