CN102868997A

CN102868997A - Local gateway information processing method and device

Info

Publication number: CN102868997A
Application number: CN2011101880984A
Authority: CN
Inventors: 雷小燕; 梁爽
Original assignee: ZTE Corp
Current assignee: Yancheng Yanlong culture and Sports Industry Investment Co.,Ltd.
Priority date: 2011-07-06
Filing date: 2011-07-06
Publication date: 2013-01-09
Anticipated expiration: 2031-07-06
Also published as: WO2013004121A1; CN102868997B

Abstract

The invention discloses a local gateway information processing method and a local gateway information processing device. The method comprises the steps as follows: a network side sends a query request to a local network query system; and the network side receives a response message returned by the local network query system, wherein the response message carries information about one or more local gateways. Through the local gateway information processing method and the local gateway information processing device, the problems resulting from the fact that how the network side acquires the information of the local gateway is not disclosed in the prior art can be solved, and furthermore, the normal use of the function of remotely accessing the local network can be guaranteed.

Description

Local gateway information processing method and device

Technical field

The present invention relates to the communications field, in particular to a kind of local gateway information processing method and device.

Background technology

Fig. 1 is the structural representation according to evolved packet system of the prior art (Evolved Packet System is referred to as EPS), and as shown in Figure 1, whole EPS is divided into wireless access network and core net two parts.In core net, comprise home subscriber server (Home Subscriber Server, referred to as HSS), mobile management unit (for example, mobile management entity (Mobility Management Entity, referred to as MME), Serving GPRS Support Node (Serving GPRS Support Node, referred to as SGSN), policy charging rule function (Policy and Charging Rule Function, referred to as PCRF), gateway (Serving Gateway, referred to as S-GW), packet data gateway (PDN Gateway, referred to as P-GW) and packet data network (Packet Data Network is referred to as PDN).The below describes the network element among Fig. 1.

Home subscriber server is positioned at the home network that the user contracts, and is used for forever depositing user contracting data.

Mobile management unit, be used for depositing the user contracting data of current network, and the Non-Access Stratum signaling management of responsible terminal to network, the safety verification function of terminal, mobile management, the tracking under user's idle pulley and paging management function and the bearer management of terminal.

Serving GPRS Support Node, global system for mobile communications (Global System for Mobile Communications, referred to as GSM), strengthen data transfer rate GSM evolution (Enhanced Data Rate for GSM Evolution, referred to as EDGE), wireless access network (GSM EDGE Radio Access Network, referred to as GERAN) and universal mobile telecommunications system (Universal Mobile Telecommunications System, referred to as UMTS), land radio access web (UMTS Terrestrial RadioAccess Network, referred to as UTRAN), the business support point of user access core network network, similar with mobile management unit on its function, be responsible for user's position and upgrade, paging management and bearer management etc.

Gateway is the gateway that core net arrives wireless system, is responsible for terminal to the user plane bearer of core net, the data buffer storage under the terminal idle pulley, function, Lawful Interception and packet routing and the forwarding capability of network side initiating business request; Gateway also is responsible for the situation that the counting user terminal is used wireless network, and produces the ticket that terminal is used wireless network, sends charging gateway to.

Packet data gateway, it is the gateway of evolution system and this system's external packet data network, be connected on internet and the packet data network, be responsible for Internet protocol (Internet Protocol is referred to as IP) address assignment, billing function, grouping packet filtering and the policy control etc. of terminal.

Packet data network is the IP operation network of operator, and packet data network provides the IP service by the core net of operator for the user.

Policy charging rule functional entity is the server of being responsible for providing charging control, online credit control, thresholding control and service quality (Quality of Service is referred to as QoS) tactful aspect rule in the evolution system.

Wireless access network, by evolution base station (Evolved Node B, referred to as eNB) and 3G radio network controller (Radio Network Controllor, referred to as RNC) form, the main transmitting-receiving of being responsible for wireless signal, by air interface and terminal contact, Radio Resource, scheduling of resource and the access control of management air interface.

Above-mentioned Serving GPRS Support Node is the SGSN of upgrading, can support and gateway between the S4 interface, and and mobility management unit between adopt GPRS Tunnel Protocol version 2 (GPRS Tunneling Protocol version 2 is referred to as GTPv2) to carry out intercommunication.For the SGSN that supports the 3G core net, packet switching (Packet Switching, referred to as PS) the territory network architecture and Fig. 1 be different, this moment, SGSN adopted gn interface to link to each other with MME, GPRS Tunnel Protocol version 1 (GPRS Tunneling Protocol version 1 is referred to as GTPv1) adopted in intercommunication; SGSN can not link to each other with gateway, need to be connected to Gateway GPRS Support Node (Gateway GPRS Support Node is referred to as GGSN) by gn interface and directly carry out the packet data network access.

Base station from home (Home NodeB, referred to as HNB) or base station from home (the Home eNodeB of evolution, referred to as HeNB) be small-sized, the lower powered base station of a class, dedicated resources as the certain user, being deployed in the private sites such as family, group, company or school uses, be mainly used in higher service rate being provided and reducing the needed expense of use high rate services to the user, remedy simultaneously the deficiency that existing distributed cellular radio communication system covers.

Fig. 2 a to Fig. 2 c is the signal picture group according to the wireless side network element core network access of prior art.Shown in Fig. 2 a, base station from home can be directly connected to core net.Shown in Fig. 2 b and Fig. 2 c, base station from home also can be linked into core network by this logical ne of home base-station gateway.The home base-station gateway major function is the fail safe of checking base station from home, processes the registration of base station from home, and base station from home is carried out operation maintenance management, according to Carrier Requirements configuration and control base station from home, is responsible for the data of exchcange core net and base station from home.

Shown in Fig. 2 a, 2b and 2c, in order to realize that the local IP access function (comprises local IP access (Local IP Access, referred to as LIPA) or selectivity IP transmission shunting (Selected IP Traffic Offload, referred to as SIPTO)), be that terminal is to this locality access of the IP device in other IP devices of home network, the enterprise network or internet, set up local gateway (Local Gateway is referred to as LGW).Setting up that local access network closes can provide providing powerful support for the local IP access technology, local gateway can and the wireless side network element close if near the wireless side network element (namely external), also can and home base-station gateway close if near the family expenses base-station gateway (namely external); Wherein, local gateway comprises local S-GW (Local SGW is referred to as L-SGW), local PGW (Local PGW is referred to as L-PGW), local GGSN (Local GGSN is referred to as L-GGSN) and external local GW etc.

In the mobile communications network framework, for the user who supports local IP access, can set up simultaneously the data path of local IP access and the data path of traditional core net access.Fig. 3 is the schematic diagram according to the data path of local IP access of the prior art and the access of traditional core net, as shown in Figure 3, connection (being also referred to as local the connection) for local IP access, the local IP access data path (for example closes to the wireless side network element to local access network from terminal, L-SGW, L-PGW, L-GGSN), transfer of data is without core net.In order to realize that terminal is to this locality access of other IP devices of home network or internet, can set up two connections, article one, the local IP access data path is used for directly access the Internet (internet ip connection, be that SIPTO connects), second local IP access data path is used for directly other IP devices of access home network (home network IP connects, and namely LIPA connects).

In the mobile communications network framework, network can not only provide the local IP access function, and remote access to local network network function (Managed Remote Access to home based network is referred to as MRA) can also be provided.Remote access to local network network function is that terminal accesses from the wireless side network element outside the local network, the IP device in the access home network in IP device, the enterprise network.For the user who supports the remote access to local network network, can set up simultaneously the data path of traditional core net access and the data path of remote access to local network network.

In order to realize remote access to local network network function, be that terminal accesses from the wireless side network element outside the local network, want the interior IP device of accessing local network or the IP device in the enterprise network, set up local access network pass (or being called local gateway), setting up that local access network closes can provide providing powerful support for remote access to local network network technology.Local gateway can and local wireless side network element close if near local wireless side network element (namely external), also can and local home base-station gateway close if near local home base-station gateway (namely external); Wherein, local gateway can comprise local S-GW (L-SGW), local PGW (L-PGW), local GGSN (Local GGSN) and external local GW (L-GW) etc.Similar with local gateway function in the local IP access for realizing the local gateway function that remote access to local network network function sets up.

In order to support remote access to local network network function, need the local network owner to support remote access, and open remote access to local network network function, namely local network has the MRA ability, and has opened the MRA function.When the wireless side network element access of terminal outside the local network, when the request access local network was professional, network side need to select close the local gateway of establishing for the connection that the terminal remote accessing local network is set up.Can access IP device in the local network by this local gateway terminal.If network side can not be selected suitable local gateway, then terminal can't realize that remote access is professional, thereby may cause the user owing to can't using this business to complain operator, and then causes customer churn.And only proposed in the prior art when local IP access connects, need to select local gateway, it is but not open that but how network side gets access to the information of closing the local gateway of establishing during for the connection of remote access to local network network and remote access, thereby caused selecting suitable local gateway.

Summary of the invention

Main purpose of the present invention is to provide a kind of local gateway information processing method and device, to address the above problem at least.

According to an aspect of the present invention, provide a kind of local gateway information processing method, comprised the steps: that network side sends query requests to the local network inquiry system; Described network side receives the response message that described local network inquiry system returns, and wherein, carries the information of one or more local gateways in the described response message.

Preferably, carry in the described query requests following one of at least: the home network identification at APN, wireless side network element place, the Base Station Identification of wireless side network element.

Preferably, the information of described local gateway comprise following one of at least: the Base Station Identification that the remote access to local network network functional MR A ability of the address information of described local gateway, described local gateway, the residing home network identification of described local gateway, described local gateway are supported.

Preferably, network side sends query requests to the local network inquiry system, and wherein, described query messages carries the MRA ability; Described network side receives the response message that described local network inquiry system returns, and wherein, carries the information of one or more local gateways of supporting the MRA ability in the described response message.

Preferably, described network side comprises mobile management unit.

Preferably, described mobile management unit sends described query requests to described local network inquiry system and comprises: described mobile management unit receive packet data network PDN connect set up request message or Attach Request message after, send described query requests to described local network inquiry system.

Preferably, after described mobile management unit receives the described response message that described local network inquiry system returns, also comprise: what request message or described Attach Request message request foundation were set up in described PDN connection is that MRA connects, and then described mobile management unit selects to support that the local gateway of MRA ability connects; And/or, what request message or described Attach Request message request foundation were set up in described PDN connection is that local IP access connects, and, contracting or the described subscriber equipment remote access to local network network of described mobile management unit configuration permission of subscriber equipment, then described mobile management unit selects to support the local gateway of MRA ability to set up the local IP access connection.

Preferably, in the situation that described mobile management unit receives Attach Request message, described method also comprises: described mobile management unit is last with the following Authentication Authorization server that sends to one of at least attachment flow: the address information of APN, local gateway, MRA ability; Described Authentication Authorization server is preserved the information that receives from described mobile management unit.

Preferably, described mobile management unit sends described query requests to described local network inquiry system and comprises: the source mobile management unit receives handover request message; Described source mobile management unit sends described query requests to described local network inquiry system, wherein, carry in the described query requests following one of at least: the home network identification at APN, Target Wireless side network element place, the Base Station Identification of Target Wireless side network element.

Preferably, described source mobile management unit receives after the response message of the address information that carries local gateway that described local network inquiry system returns, described method also comprises: the address information of the local gateway of the address information of the local gateway that described source mobile management unit relatively receives and the local source wireless side network element of preserving, if consistent, then determine to keep locally-attached continuity, if inconsistent, then deactivation is local connects.

Preferably, described method also comprises: if locally-attached home network identification of the home network identification at described Target Wireless side network element place and foundation is inconsistent, then the mobile management unit MRA ability of inquiring about from described local network inquiry system when setting up local connection the in described source judges whether to keep locally-attached continuity, wherein, if local gateway is supported the MRA ability, then determine to keep locally-attached continuity, described local the connection is transformed into the MRA connection, otherwise deactivation is local to be connected.

Preferably, described mobile management unit sends described query requests to described local network inquiry system and comprises: the Suitable For Moving-goal Problems administrative unit receives the tracing section updating request message; Described Suitable For Moving-goal Problems administrative unit sends described query requests to described local network inquiry system, wherein, carry in the described query requests following one of at least: the home network identification at APN, Target Wireless side network element place, the Base Station Identification of Target Wireless side network element.

Preferably, described Suitable For Moving-goal Problems administrative unit receives after the response message of the address information of carrying local gateway that described local network inquiry system returns, described method also comprises: the address information of the address information of the described local gateway that carries in the more described response message of described Suitable For Moving-goal Problems administrative unit and the local gateway that gets access to from the source mobile management unit, if consistent, then determine to keep locally-attached continuity, otherwise determine to support locally-attached continuity.

Preferably, described method also comprises: described Suitable For Moving-goal Problems administrative unit gets access to the home network identification of MRA ability and source wireless side network element from the source mobile management unit; The home network identification of described Suitable For Moving-goal Problems administrative unit comparison object wireless side network element and from the home network identification of the described source wireless side network element that described source mobile management unit gets access to, in inconsistent situation, described Suitable For Moving-goal Problems administrative unit judges whether to keep locally-attached continuity according to described MRA ability, wherein, if local gateway is supported the MRA ability, then determine to keep locally-attached continuity, described local the connection is transformed into the MRA connection, otherwise, connect by mobile management unit deactivation in described source is local.

Preferably, before described network side sent described query requests to described local network inquiry system, described method also comprised: described local network inquiry system receives login request message and/or the update inquiry information from the information that carries this local gateway of local gateway.

The information of the described local gateway that preferably, carries comprise following one of at least: the Base Station Identification that the APN that the IP address of this local gateway, this local gateway are supported, the residing home network identification of this local gateway, local gateway are supported, the MRA ability of this local gateway.

Preferably, described local network inquiry system is: domain name system, wireless side Element management system or the new logic entity that sets in advance.

According to another aspect of the present invention, also provide a kind of local gateway information processor, having comprised: sending module is used for sending query requests to the local network inquiry system; Receiver module is used for receiving the response message that described local network inquiry system returns, and wherein, carries the information of one or more local gateways in the described response message.

Preferably, described sending module is used for sending query requests to the local network inquiry system, and wherein, described query messages carries the MRA ability; Described receiver module is used for receiving the response message that described local network inquiry system returns, and wherein, carries the information of one or more local gateways of supporting the MRA ability in the described response message.

By the present invention, solved in the prior art that remote access to local network network openly connects and during remote access network side how to get access to the information of local gateway and the problem that causes, and then can guarantee the normal use of remote access to local network network function.

Description of drawings

Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:

Fig. 1 is the structural representation according to evolved packet system of the prior art;

Fig. 2 a is the schematic diagram one according to wireless side network element core network access of the prior art;

Fig. 2 b is the schematic diagram two according to wireless side network element core network access of the prior art;

Fig. 2 c is the schematic diagram three according to wireless side network element core network access of the prior art;

Fig. 3 is the schematic diagram according to the data path of local IP access of the prior art and the access of traditional core net;

Fig. 4 is the flow chart according to the local gateway information processing method of the embodiment of the invention;

Fig. 5 is the structured flowchart according to the local gateway information processor of the embodiment of the invention;

Fig. 6 is according to the local gateway dynamic registration of the embodiment of the invention and the flow chart of renewal;

Fig. 7 connects the flow chart of selecting local gateway when setting up according to the PDN of the embodiment of the invention;

Fig. 8 is according to the flow chart of selecting local gateway in the switching flow of the embodiment of the invention;

Fig. 9 is according to the flow chart of selecting local gateway in the tracing section updating process of the embodiment of the invention; And,

Figure 10 is the flow chart that the user according to the embodiment of the invention selects local gateway and preserves local gateway when initially adhering to.

Embodiment

Hereinafter also describe in conjunction with the embodiments the present invention in detail with reference to accompanying drawing.Need to prove, in the situation that do not conflict, embodiment and the feature among the embodiment among the application can make up mutually.

In the present embodiment, provide a kind of local gateway information processing method, Fig. 4 is the flow chart according to the local gateway information processing method of the embodiment of the invention, and as shown in Figure 4, this flow process comprises the steps:

Step S402, network side sends query requests to the local network inquiry system;

Step S404, network side receives the response message that the local network inquiry system returns, and wherein, carries the information of one or more local gateways in this response message.

Pass through above-mentioned steps, in network, be provided with the local network inquiry system, by this inquiry system the network side that needs local gateway information all can be inquired about to this system, thereby get access to the information of local gateway, provide the foundation for selecting suitable local gateway.

When inquiry, network side can be chosen in the information of carrying in the query requests according to actual conditions, for example, can carry in the query requests following one of at least: APN, wireless side network element (for example, base station, the base station from home) home network identification at place, the Base Station Identification of wireless side network element.In like manner, for the local network inquiry system, the information of the local gateway that it can provide also can be diversified, for example, the information of local gateway can comprise following one of at least: the Base Station Identification that the remote access to local network network functional MR A ability of the address information of local gateway, local gateway, the residing home network identification of local gateway, local gateway are supported.

For the local network inquiry system, its mode that obtains the information of local gateway has a variety of, and a kind of mode that the most directly obtains is provided in the present embodiment.That is, the local network inquiry system receives login request message and/or the update inquiry information from the information that carries this local gateway of local gateway.The information of the local gateway that preferably, carries comprise following one of at least: the Base Station Identification that the IP address of this local gateway, the APN of support, the residing home network identification of this local gateway, local gateway are supported, the MRA ability of local gateway.

If wish inquiry MRA ability, in a more excellent execution mode, can carry the MRA ability in query requests, at this moment, the local network inquiry system can only carry the information of the local gateway of supporting the MRA ability in the response message that it returns, if a plurality of local gateways can adopt the mode of tabulation to be carried in the response message.

Local network inquiry system in the present embodiment can be arranged in the core net, also can be arranged on access network, the residing network site of local network inquiry system does not affect the enforcement of the present embodiment, as long as network side can carry out communication with this local network inquiry system.The local network inquiry system can utilize existing network element to realize, domain name system (Domain Name System for example, referred to as DNS), perhaps, wireless side Element management system (H (e) NB Management System, referred to as HMS), can certainly use new logic entity (namely set in advance one or more logic entities and realize this function).Be provided with in network after the local network inquiry system, the network element of network side all can carry out with it can using existing interface alternately, also can increase new interface.In the following preferred implementation of the present embodiment, describe as an example of the mobile management unit of network side example (hereinafter having described three examples), mutual mode and the mobile management unit of other network side network element and local network inquiry system is same or similar, does not repeat them here.

Example one

Mobile management unit can receive packet data network PDN connect set up request message or Attach Request message after, send query requests to the local network inquiry system.

Preferably, what request message or Attach Request message request foundation were set up in the PDN connection is that MRA connects, and then mobile management unit selects to support that the local gateway of MRA ability connects; And/or, what request message or Attach Request message request foundation were set up in the PDN connection is that local IP access connects, and, signatory or the mobile management unit configuration of subscriber equipment allows subscriber equipment remote access to local network network, and then mobile management unit selects to support that the local gateway of MRA ability connects.

In this example, in order to make the user connect or select corresponding local gateway during the local IP access link from non-3GPP access request MRA, mobile management unit can be with the following Authentication Authorization server that sends to one of at least: the address information of APN, local gateway, MRA ability, then, the Authentication Authorization server is preserved the information that receives from mobile management unit.So just can obtain by the Authentication Authorization server information of local gateway.

Example two

The source mobile management unit also can be after receiving handover request message, send query requests to the local network inquiry system, wherein, carry in the query requests following one of at least: the home network identification at APN, Target Wireless side network element place, the Base Station Identification of Target Wireless side network element.

In this example, the source mobile management unit is after obtaining the address information of local gateway, can be used for judging whether to keep locally-attached continuity (certainly, the information of this local gateway can also be used as other processing), whether the address information that is the local gateway that relatively receives of source mobile management unit is consistent with the address information of the local gateway of the local source wireless side network element of preserving, if consistent, then determine to keep locally-attached continuity, if inconsistent, then deactivation is local connects.Certainly, judging whether to keep locally-attached continuous mode is not only that this is a kind of, for example, can also be: if locally-attached home network identification of the home network identification at Target Wireless side network element place and foundation is inconsistent, then the source mobile management unit judges whether to keep locally-attached continuity according to set up the MRA ability of inquiring about when this locality connects from the local network inquiry system, wherein, if local gateway is supported the MRA ability, then determine to keep locally-attached continuity, this locality connection is transformed into MRA to be connected, otherwise deactivation is local to be connected.

Example three

The Suitable For Moving-goal Problems administrative unit can be after receiving the tracing section updating request message, send query requests to the local network inquiry system, wherein, carry in this query requests following one of at least: the home network identification at APN, Target Wireless side network element place, the Base Station Identification of Target Wireless side network element.

In this example, the Suitable For Moving-goal Problems administrative unit also can be used for judging whether to keep locally-attached continuity after obtaining the address information of local gateway.It is the address information of the address information of the local gateway that carries in the Suitable For Moving-goal Problems administrative unit comparison response message and the local gateway that gets access to from the source mobile management unit, if consistent, then determine to keep locally-attached continuity, otherwise determine to support locally-attached continuity.Identical with example two, judge whether to keep locally-attached continuity to be: the Suitable For Moving-goal Problems administrative unit gets access to MRA ability and home network identification from the source mobile management unit; The home network identification of Suitable For Moving-goal Problems administrative unit comparison object wireless side network element and the home network identification that gets access to from the source mobile management unit, in inconsistent situation, the Suitable For Moving-goal Problems administrative unit judges whether to keep locally-attached continuity according to the MRA ability, wherein, if local gateway is supported the MRA ability, then determine to keep locally-attached continuity, this locality connection is transformed into MRA connects, otherwise, connect by mobile management unit deactivation in source is local.

By above-mentioned three examples the mutual of mobile management entity and local network inquiry system has been described, but has been not limited to this, can expand to according to three above-mentioned examples the mutual of other network elements or type.

In the present embodiment, also provide a kind of local gateway information processor, this device is used for realization above-described embodiment and preferred implementation thereof, has carried out not repeating them here of explanation, and the below describes the module that relates in this device.This device is used for realizing above-described embodiment and preferred implementation, had carried out repeating no more of explanation.As used below, the combination of software and/or the hardware of predetermined function can be realized in term " module ".Although the described device of following examples is preferably realized with software, hardware, perhaps the realization of the combination of software and hardware also may and be conceived.

Fig. 5 is the structured flowchart according to the local gateway information processor of the embodiment of the invention, and as shown in Figure 5, this device comprises: sending module 52 and receiver module 54, the below describes this structure.

Sending module 52 is used for sending query requests to the local network inquiry system; Receiver module 54 is connected to sending module 52, is used for receiving the response message that the local network inquiry system returns, and wherein, carries the information of one or more local gateways in this response message.

Preferably, carry in the query requests following one of at least: the home network identification at APN, wireless side network element place, the Base Station Identification of wireless side network element.

Preferably, the information of local gateway comprise following one of at least: the Base Station Identification that the remote access to local network network functional MR A ability of the address information of local gateway, local gateway, the residing home network identification of local gateway, local gateway are supported.

Preferably, sending module 52 is used for sending query requests to the local network inquiry system, and wherein, query messages carries the MRA ability; Receiver module 54 is used for receiving the response message that the local network inquiry system returns, and wherein, carries the information of one or more local gateways of supporting the MRA ability in the response message.

Describe below in conjunction with several preferred embodiments, following preferred embodiment combines above-described embodiment and preferred implementation.In following preferred embodiment, terminal accesses from the wireless side network element outside the local network, and when setting up the connection of remote access to local network network, network side goes local network inquiry system inquiry local gateway address information; When terminal was set up local IP access and connected from local network access, network side went the local network inquiry system to inquire about the local gateway address information with APN and home network identification or base station from home sign.The wireless side network element can be base station from home or base station.

Preferred embodiment one

Fig. 6 is according to the local gateway dynamic registration of the embodiment of the invention and the flow chart of renewal, as shown in Figure 6, in this preferred embodiment, can send dynamic registration and/or dynamically update request, the local network inquiry system after receiving the login request message and/or config update request message of local gateway is preserved the information that comprises in the request message.Return simultaneously local gateway registration response or config update response message.The below describes respectively this.

Local gateway (for example, can be after start powers on) to local network inquiry system dynamic registration, in the login request message of its transmission, carry the Base Station Identification that local gateway IP address, APN, the residing home network identification of local gateway and/or local gateway support, the MRA ability of local gateway.

Local gateway can be after configuration information changes, dynamically update to the local network inquiry system, in the config update request message of its transmission, carry local gateway IP address, APN, the residing home network identification of local gateway and/or the Base Station Identification of local gateway support, the MRA ability of local gateway.

Local network inquiry system in the preferred embodiment can be DNS, wireless side Element management system (HMS, H (e) NB Management System) or new logic entity.

If the local network inquiry system is DNS, then can utilize existing interface and agreement to realize inquiry and the response of local gateway between network side and the local network inquiry system; If the local network inquiry system is HMS or new logic entity, then need newly-increased interface between network side and the local network inquiry system, communication need to adopt new agreement to realize each other, newly-increased interface and agreement can and network side and DNS between interface and the agreement used similar.

If local gateway has the MRA ability, then local gateway carries the MRA ability in request message, and the residing network owner of expression local gateway can provide MRA professional, and has opened the MRA function.The MRA ability can be a new argument, such as a new indication or a new flag, also can be the combination of existing parameter.So the MRA ability can realize by newly-increased IE, also can realize by the combination of existing IE.If local gateway does not have the MRA ability, perhaps but local gateway has the MRA ability does not open the MRA function, and then local gateway does not need to carry the MRA ability of local gateway in request message.

If the residing local network of local gateway has home network identification, then local gateway carries the residing home network identification of local gateway (for example, LHN-ID, LHN name) in request message; Local gateway also can in request message, carry the base station from home sign (for example, H (e) NB-ID, H (e) NB name) that local gateway is supported.

Preferred embodiment two

In this preferred embodiment, terminal accesses from base station or the base station from home outside the local network, wishes the remote access to local network network, and request is set up MRA and connected; Perhaps terminal is wished to set up LIPA and is connected from the inner access of local network:

This preferred embodiment is applicable to terminal from GERAN/UTRAN/E-UTRAN access EPC network or GPRS network.If UE accesses from GERAN/UTRAN, base station from home is HNB, and the base station is BSS or NodeB/RNC, and mobile management unit is SGSN.It is to activate the PDP Context request message that request message is set up in the at this moment connection between UE and the SGSN.If UE accesses from E-UTRAN, base station from home is HeNB, and the base station is eNB, and mobile management unit is MME.May have home base-station gateway in the network, if there is home base-station gateway, the message between base station from home and the mobile management unit all needs through home base-station gateway so.Further the message between base station from home and the local gateway can also can not passed through home base-station gateway by home base-station gateway.For the scene by the home base-station gateway forwarding messages, home base-station gateway carries out transparent transmission to the message of process, and the process of transparent transmission and the present embodiment are irrelevant, do not do here and give unnecessary details.

Fig. 7 connects the flow chart of selecting local gateway when setting up according to the PDN of the embodiment of the invention, and as shown in Figure 7, this flow process comprises the steps:

Step S702, user terminal initiatively initiate PDN and connect the request of foundation, and the MRA connection is set up in request or LIPA connects.

Step S704, mobile management unit receive PDN connect set up request message after, with one of following parameter, perhaps the Base Station Identification of their combination: APN, the residing home network identification of current access base station, current access base station, in the local network inquiry system inquiry local network address information of local gateway.

Step S706, the local network inquiry system returns query response message to mobile management unit.The local network inquiry system is according to the parameter that comprises in the inquiry request message of receiving LGW address information corresponding to inquiry in the information that preserve this locality, and the local network inquiry system returns the Base Station Identification that LGW address information, MRA ability, the residing home network identification of local gateway and/or local gateway are supported according to Query Result to mobile management unit.

The LGW address information that the local network inquiry system returns to mobile management unit can be a LGW address information, it also can be a tabulation that comprises a plurality of LGW address informations, if what the local network inquiry system returned is a LGW tabulation, then mobile management unit can be selected arbitrarily a LGW address in the LGW tabulation of returning.

Mobile management unit is preserved the Base Station Identification of inquiring about LGW address information, MRA ability, the residing home network identification of local gateway and/or the local gateway support of receiving.

Mobile management unit also can not preserved the Base Station Identification of inquiring about LGW address information, MRA ability, the residing home network identification of local gateway and/or the local gateway support of receiving, but initiatively is with parameter to inquire about to the local network inquiry system in needs again.

In addition, among the step S704, mobile management unit can also comprise the MRA ability to the query messages that the local network inquiry system sends.Among the step S706, only comprise the LGW that supports the MRA ability in the LGW address information that the local network inquiry system returns at this moment, perhaps LGW tabulation.

If the UE request is the MRA connection, then the mobile management unit selection supports that the LGW of MRA ability is that terminal connects.

If what UE asked is that LIPA connects, and the signatory or mobile management unit configuration permission UE remote access to local network network of UE, then the mobile management unit selection supports that the LGW of MRA ability is that terminal connects.

Step S708 carries out PDN and connects the subsequent process of setting up, and subsequent process and prior art are similar, do not do here and give unnecessary details.

Preferred embodiment three

This preferred embodiment is applicable to the user set up local IP access and connect from source base station (for example, base station from home, but be not limited to this) after because variation has occured in the position, move to other base station or base station from home.

The present embodiment is applicable to terminal from GERAN/UTRAN/E-UTRAN access EPC network or GPRS network.If UE accesses from GERAN/UTRAN, base station from home is HNB, and the base station is BSS or NodeB/RNC, and mobile management unit is SGSN.If UE accesses from E-UTRAN, base station from home is HeNB, and the base station is eNB, and mobile management unit is MME.May have home base-station gateway in the network, if there is home base-station gateway, the message between all base station from home and the mobile management unit all needs through home base-station gateway so.Further the message between base station from home and the local gateway can also can not passed through home base-station gateway by home base-station gateway.For the scene by the home base-station gateway forwarding messages, home base-station gateway carries out transparent transmission to the message of process, and the process of transparent transmission and the present embodiment are irrelevant, do not do here and give unnecessary details.If UMTS/GERAN access, and mobile management unit is Gn/Gp SGSN, then do not have SGW in this flow process, and all message through SGW do not need through SGW, but mobile management unit directly sends to local gateway.

Fig. 8 is that as shown in Figure 8, this flow process comprises the steps: according to the flow chart of selecting local gateway in the switching flow of the embodiment of the invention

Step S802, the source base station from home obtains the metrical information of adjacent cells, chooses suitable Target cell according to the information in the measurement report.

Step S804, the source base station from home sends handover request message to the source mobile management unit.Wherein comprise the target BS sign, optionally also comprise the home network identification at target BS place, if the source base station from home is known the home network identification at target BS place.

Step S806, source mobile management unit be according to one of following parameter, the perhaps home network identification at their combination: APN, target BS place, the Base Station Identification of target BS, the LGW address information of supporting to the inquiry of local network inquiry system.

Step S808, local network inquiry system return the Base Station Identification of LGW address information, MRA ability, the residing home network identification of local gateway or the local gateway support of target BS support to the source mobile management unit.

The source mobile management unit is compared with inquiring about the LGW address information of receiving and the LGW address information that the local source base station from home of preserving is supported, whether unanimously see, if unanimously then think that target BS and source base station from home are in same local network, the continuity that can keep local IP access to connect, if inconsistent, then think target BS and source base station from home not in same local network, the continuity that can not keep local IP access to connect, source mobile management unit deactivation local IP access connects.

If locally-attached home network identification of the home network identification at target BS place and foundation is inconsistent (if target BS does not belong to any local network, so also think inconsistent), then mobile management unit can also judge whether to keep the continuity of local IP access connection according to the MRA ability of setting up the LGW that inquires about when this locality connects.If LGW supports MRA, then keep the local continuity that connects, the local IP access connection is transformed into MRA connects, otherwise source mobile management unit deactivation local IP access connects.Deactivating locally-attached process is the known technology of those skilled in the art, does not do here and gives unnecessary details.

If need the deactivation local IP access to connect, then the source mobile management unit is carried out subsequent step after finishing local connection deactivation.

Step S810 carries out the subsequent process that switches, and subsequent process and prior art are similar, do not do here and give unnecessary details.

Preferred embodiment four

This preferred embodiment after being applicable to the user and setting up local IP access and connect, because variation has occured in the position, moves to other base station or base station from home.

The present embodiment is applicable to terminal from GERAN/UTRAN/E-UTRAN access EPC network or GPRS network.If UE accesses from GERAN/UTRAN, base station from home is HNB, and the base station is BSS or NodeB/RNC, and mobile management unit is SGSN.If UE accesses from E-UTRAN, base station from home is HeNB, and the base station is eNB, and mobile management unit is MME.May have home base-station gateway in the network, if there is home base-station gateway, the message between all base station from home and the mobile management unit all needs through home base-station gateway so.Further the message between base station from home and the local gateway can also can not passed through home base-station gateway by home base-station gateway.For the scene by the home base-station gateway forwarding messages, home base-station gateway carries out transparent transmission to the message of process, and the process of transparent transmission and the present invention are irrelevant, do not do here and give unnecessary details.

If UMTS/GERAN access, and mobile management unit is Gn/Gp SGSN, then do not have SGW in this flow process, and all message through SGW do not need through SGW, but mobile management unit directly sends to local gateway.

Fig. 9 is that as shown in Figure 9, this flow process comprises the steps: according to the flow chart of selecting local gateway in the tracing section updating process of the embodiment of the invention

Step S902, terminal sends the tracing section updating request message through Target Wireless side network element to the Suitable For Moving-goal Problems administrative unit;

Step S904, the Suitable For Moving-goal Problems administrative unit sends context request message to the source mobile management unit;

Step S906, the source mobile management unit sends context acknowledge message to the Suitable For Moving-goal Problems administrative unit, carries user context information, wherein carries the LGW address that local IP access connects, and optionally also comprises the residing home network identification of MRA ability, LGW of LGW;

Step S908, alternatively, terminal, mobile management unit, Authentication Authorization server are carried out verification process;

Step S910, the Suitable For Moving-goal Problems administrative unit is according to one of following parameter, the perhaps Base Station Identification of the home network identification of their combination: APN, Target Wireless side network element, Target Wireless side network element, the LGW address information of supporting to local network inquiry system query aim wireless side network element.

Step S912, local network inquiry system return the Base Station Identification of LGW address information, MRA ability, the residing home network identification of local gateway or the local gateway support of the support of Suitable For Moving-goal Problems administrative unit Target Wireless side network element.

The Suitable For Moving-goal Problems administrative unit is used the LGW address information received from the source mobile management unit and is inquired about the LGW address information comparison of returning from the local network inquiry system, see whether two LGW addresses are consistent, if unanimously then the Suitable For Moving-goal Problems administrative unit thinks that Target Wireless side network element and source base station are in same local network, the continuity that can keep local IP access to connect, otherwise think and can not support the continuity that local IP access connects.

If comprised MRA ability and home network identification in the context among the step S906, then the Suitable For Moving-goal Problems administrative unit is done with it coupling according to the home network identification of Target Wireless side network element.If the home network identification at Target Wireless side network element place is inconsistent with the home network identification that the local IP access of foundation is connected (if Target Wireless side network element does not belong to any local network, so also think inconsistent), then the Suitable For Moving-goal Problems administrative unit can also judge whether to keep the continuity of local IP access connection according to the MRA ability of setting up the LGW that inquires about when this locality connects.If LGW supports MRA, then keep the local continuity that connects, the local IP access connection is transformed into MRA connects, otherwise connected by source mobile management unit deactivation local IP access.

Step S914, the Suitable For Moving-goal Problems administrative unit sends context acknowledgement message to the source mobile management unit, carries judged result, if judged result represents not support the continuity of local IP access connection, then source mobile management unit deactivation local IP access connects.Deactivating locally-attached process is the known technology of those skilled in the art, does not do here and gives unnecessary details.

Step S916, the subsequent process of execution tracing section updating, subsequent process and prior art are similar, do not do here and give unnecessary details.

Embodiment five

Figure 10 is the flow chart that the user according to the embodiment of the invention selects local gateway and preserves local gateway when initially adhering to, and as shown in figure 10, this flow process comprises the steps:

Step S1002, user terminal need to set up Radio Resource control (Radio Resource Control is referred to as RRC) connection as the carrying of signaling message or business datum before communicating.

Step S1004, user terminal sends initialization Non-Access Stratum (Non-Access-Stratum is referred to as NAS) message, carries out attach operation.

Step S1006, the wireless side network element is issued mobile management unit with initial user message.If there is home base-station gateway, then is transmitted to first home base-station gateway, and then by home base-station gateway message issued mobile management unit.

Step S1008, alternatively, terminal, mobile management unit, Authentication Authorization server are carried out verification process.

Step S1010, mobile management unit is received behind the Attach Request message with one of following parameter, the perhaps Base Station Identification of the home network identification of their combination: APN, current access base station, current base station is to the address information mobile management unit of local network inquiry system inquiry local gateway.

Step S1012, the local network inquiry system returns query response message to mobile management unit.The local network inquiry system is according to the inquiry request message of receiving LGW address information corresponding to inquiry in the information that preserve this locality, and the local network inquiry system returns the Base Station Identification that local gateway LGW address information, MRA ability, the residing home network identification of local gateway and/or local gateway are supported according to Query Result to mobile management unit.

In addition, connect if terminal request is set up MRA, then among the step S1010, mobile management unit can also comprise the MRA ability to the query messages that the local network inquiry system sends.Among the step S1012, only comprise the LGW that supports the MRA ability in the LGW address information that the local network inquiry system returns at this moment, perhaps LGW tabulation.

Step S1014, the subsequent process of execution attachment flow, until step S1016, subsequent process and prior art are similar, do not do here and give unnecessary details.

Step S1016, last in attachment flow, mobile management unit is sent out circular (notify) request message to the Authentication Authorization server, carry APN and LGW address, and MRA ability, request is kept at the Authentication Authorization server with APN, LGW address and LGW MRA ability, for the user connects or local IP access when connecting from non-3GPP access request MRA, selects corresponding local gateway address.

Step S1018, the Authentication Authorization server is preserved APN, LGW address, the LGW MRA ability of receiving, and administrative unit notify response message is moved in travelling backwards.

Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and be carried out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into respectively each integrated circuit modules, 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 modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a local gateway information processing method is characterized in that comprising the steps:

Network side sends query requests to the local network inquiry system;

Described network side receives the response message that described local network inquiry system returns, and wherein, carries the information of one or more local gateways in the described response message.

2. method according to claim 1 is characterized in that, carry in the described query requests following one of at least: the home network identification at APN, wireless side network element place, the Base Station Identification of wireless side network element.

3. method according to claim 1 and 2, it is characterized in that, the information of described local gateway comprise following one of at least: the Base Station Identification that the remote access to local network network functional MR A ability of the address information of described local gateway, described local gateway, the residing home network identification of described local gateway, described local gateway are supported.

4. method according to claim 1 is characterized in that,

Network side sends query requests to the local network inquiry system, and wherein, described query messages carries the MRA ability;

Described network side receives the response message that described local network inquiry system returns, and wherein, carries the information of one or more local gateways of supporting the MRA ability in the described response message.

5. each described method in 4 according to claim 1 is characterized in that, described network side comprises mobile management unit.

6. method according to claim 5 is characterized in that, described mobile management unit sends described query requests to described local network inquiry system and comprises:

Described mobile management unit receive packet data network PDN connect set up request message or Attach Request message after, send described query requests to described local network inquiry system.

7. method according to claim 6 is characterized in that, after described mobile management unit receives the described response message that described local network inquiry system returns, also comprises:

What request message or described Attach Request message request foundation were set up in described PDN connection is that MRA connects, and then described mobile management unit selects to support that the local gateway of MRA ability connects; And/or,

What request message or described Attach Request message request foundation were set up in described PDN connection is that local IP access connects, and, contracting or the described subscriber equipment remote access to local network network of described mobile management unit configuration permission of subscriber equipment, then described mobile management unit selects to support the local gateway of MRA ability to set up the local IP access connection.

8. method according to claim 6 is characterized in that, in the situation that described mobile management unit receives Attach Request message, also comprises:

Described mobile management unit is last with the following Authentication Authorization server that sends to one of at least attachment flow: the address information of APN, local gateway, MRA ability;

Described Authentication Authorization server is preserved the information that receives from described mobile management unit.

9. method according to claim 5 is characterized in that, described mobile management unit sends described query requests to described local network inquiry system and comprises:

The source mobile management unit receives handover request message;

Described source mobile management unit sends described query requests to described local network inquiry system, wherein, carry in the described query requests following one of at least: the home network identification at APN, Target Wireless side network element place, the Base Station Identification of Target Wireless side network element.

10. method according to claim 9 is characterized in that, described source mobile management unit receives after the response message of the address information that carries local gateway that described local network inquiry system returns, and also comprises:

The address information of the local gateway of the address information of the local gateway that described source mobile management unit relatively receives and the local source wireless side network element of preserving, if consistent, then determine to keep locally-attached continuity, if inconsistent, then deactivation is local connects.

11. method according to claim 9 is characterized in that, also comprises:

If the home network identification at described Target Wireless side network element place and locally-attached home network identification of foundation are inconsistent, then the mobile management unit MRA ability of inquiring about from described local network inquiry system when setting up local connection the in described source judges whether to keep locally-attached continuity, wherein, if local gateway is supported the MRA ability, then determine to keep locally-attached continuity, described local the connection is transformed into the MRA connection, otherwise deactivation is local to be connected.

12. method according to claim 5 is characterized in that, described mobile management unit sends described query requests to described local network inquiry system and comprises:

The Suitable For Moving-goal Problems administrative unit receives the tracing section updating request message;

Described Suitable For Moving-goal Problems administrative unit sends described query requests to described local network inquiry system, wherein, carry in the described query requests following one of at least: the home network identification at APN, Target Wireless side network element place, the Base Station Identification of Target Wireless side network element.

13. method according to claim 12 is characterized in that, described Suitable For Moving-goal Problems administrative unit receives after the response message of the address information of carrying local gateway that described local network inquiry system returns, and also comprises:

The address information of the address information of the described local gateway that carries in the more described response message of described Suitable For Moving-goal Problems administrative unit and the local gateway that gets access to from the source mobile management unit, if consistent, then determine to keep locally-attached continuity, otherwise determine to support locally-attached continuity.

14. method according to claim 12 is characterized in that, also comprises:

Described Suitable For Moving-goal Problems administrative unit gets access to the home network identification of MRA ability and source wireless side network element from the source mobile management unit;

The home network identification of described Suitable For Moving-goal Problems administrative unit comparison object wireless side network element and from the home network identification of the described source wireless side network element that described source mobile management unit gets access to, in inconsistent situation, described Suitable For Moving-goal Problems administrative unit judges whether to keep locally-attached continuity according to described MRA ability, wherein, if local gateway is supported the MRA ability, then determine to keep locally-attached continuity, described local the connection is transformed into the MRA connection, otherwise, connect by mobile management unit deactivation in described source is local.

15. method according to claim 1 is characterized in that, before described network side sends described query requests to described local network inquiry system, also comprises:

Described local network inquiry system receives login request message and/or the update inquiry information from the information that carries this local gateway of local gateway.

16. method according to claim 15 is characterized in that, the information of the described local gateway that carries comprise following one of at least:

The Base Station Identification that the APN that the IP address of this local gateway, this local gateway are supported, the residing home network identification of this local gateway, local gateway are supported, the MRA ability of this local gateway.

17. method according to claim 1 is characterized in that, described local network inquiry system is: domain name system, wireless side Element management system or the new logic entity that sets in advance.

18. a local gateway information processor is characterized in that comprising:

Sending module is used for sending query requests to the local network inquiry system;

Receiver module is used for receiving the response message that described local network inquiry system returns, and wherein, carries the information of one or more local gateways in the described response message.

19. device according to claim 18 is characterized in that, carry in the described query requests following one of at least: the home network identification at APN, wireless side network element place, the Base Station Identification of wireless side network element.

20. according to claim 18 or 19 described devices, it is characterized in that, the information of described local gateway comprise following one of at least: the Base Station Identification that the remote access to local network network functional MR A ability of the address information of described local gateway, described local gateway, the residing home network identification of described local gateway, described local gateway are supported.

21. device according to claim 18 is characterized in that,

Described sending module is used for sending query requests to the local network inquiry system, and wherein, described query messages carries the MRA ability;

Described receiver module is used for receiving the response message that described local network inquiry system returns, and wherein, carries the information of one or more local gateways of supporting the MRA ability in the described response message.