CN102307340B - Method and device for movably managing corresponding meter of protocol abilities of name of shared access point - Google Patents

Method and device for movably managing corresponding meter of protocol abilities of name of shared access point Download PDF

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CN102307340B
CN102307340B CN201110269719.1A CN201110269719A CN102307340B CN 102307340 B CN102307340 B CN 102307340B CN 201110269719 A CN201110269719 A CN 201110269719A CN 102307340 B CN102307340 B CN 102307340B
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apn
mobility management
management protocol
network
corresponding table
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CN102307340A (en
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靳维生
朱文若
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/17—Selecting a data network PoA [Point of Attachment]

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The embodiment of the invention discloses a method and a device of a mobile management protocol ability mapping table sharing access point names, wherein the method includes that: a mapping table requester transmits a network configuration request to a mapping table owner; and the mapping table requester receives the mobile management protocol ability of the access point names (APN) transmitted by the mapping table owner. The mapping table includes the mobile management protocol ability of the APN, and the APN in the mapping table is mapped with the mobile management protocol of the data gateway.

Description

The method and apparatus of the corresponding table of mobility management protocol ability of shared access point title
Technical field
The embodiment of the present invention relates to moving communicating field, relates in particular to a kind of method that gateway is selected that realizes.
background technology
Conventional telecommunication network, particularly wireless communication networks, as Global Communications System (Global for Mobile Communications, GSM), universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS) etc., possess the advantages such as class of business is abundant, network control ability is strong, but due to factors such as wireless communication system frequency resource are limited, transmission environment is severe, cannot provide high access rate, and emerging wireless access wide band technology these shortcomings are well made up.With WLAN (wireless local area network) (Wireless Local Area Network, and World Interoperability for Microwave Access, WiMax (Worldwide Interoperability for Microwave Access WLAN), WiMAX) can provide the broadband wireless access business of two-forty for the wireless access wide band technology of representative, and support nomadic and mobile application, greatly improved the access capability of radio communication.Fusion between different networks becomes trend gradually, a kind of network architecture of new fusion is also progressively shaped, be illustrated in figure 1 the network architecture schematic diagram of fusion, top left region is to use 3GPP access network part, and lower zone is non-3GPP access network part.
In wireless communication system, user's mobility is most important feature, and therefore, for cordless communication network, user's mobile management is one of most important part.Different wireless communication systems are for mobile management, also designed different agreements, in the communication network of this fusion, at least comprise the agreement of two kinds of mobile management, general packet wireless service tunnel protocol (Genral Packet Radio Service Tunnel Protocol, and mobile IP protocol (Mobile IP) GTP), comprise user's Mobile IP (Client Mobile IP, and proxy-mobile IP (Proxy Mobile IP, PMIP) CMIP).GTP agreement is mainly used in the evolvement network of GPRS/UMTS and some 3GPP based on them, and MIP agreement is mainly used in the non-3GPP network such as WiMAX, WLAN.
Different agreements, has different features and the scope of application.GTP agreement is in providing user mobility management, session management can also be provided, the functions such as charging, in conjunction with mobile application protocol (Mobile Application Protocol, MAP), can complete the each side management to user and network and control, in the mobile network GPRS/UMTS of GTP agreement under the definition of 3GPP tissue, being widely used.At present, a special internet data network GRX of interconnected telecommunications has been set up in the whole world, links together reaching 300 above GPRS/UMTS mobile networks, has realized global roaming.And MIP agreement itself mainly provides the ability of mobile management, it need to be in conjunction with other control protocol, and for example Diameter can provide a set of complete management and control ability to network and user.Due to MIP technology simple and flexible, be adopted as the mobility management protocol of standard by the mobile network of multiple non-3GPP.The consideration of merging based on multiple network, wireless core network of future generation can be selected the mobility management protocol of MIP as it, and finally likely becomes the mobility management protocol of main flow.But can coexist for a long time in the communication network at multiple networks fusion in GTP agreement and MIP agreement at present.Different agreements is corresponding the different network architecture and device processes functions also, and the tenability of different agreement has determined whether a network equipment can realize intercommunication with another equipment.
Access Network provides basic wireless connections ability, various access technologies all need to arrange to have the Access Network of technical characterstic separately, and access common core or network or business network by certain method and technology, realize the communication system merging, the access technology Access Network of for example GSM, GPRS, UMTS, WLAN, WiMAX and some evolution based on them.IAD is the interface entities of non-3 GPP access network access UNE core net, can carry out certain control and management function thereon.
Data gateway is an entity in core net border, is the terminal of the secure tunnel between terminal core net, is the interface entities that mobile network core network accessing group data network carries out Operational Visit.Data gateway may be responsible for implementing access strategy, for end-filtration packet, and be terminal distribution IP address etc., be also the network anchor point of terminal in the time carrying out Operational Visit.User data transmits after the polymerization of data gateway place between core net and Packet Data Network.Network anchor point is the mobile anchor point on a large scale of terminal, terminal may obtain at this data gateway for the IP address of carrying out Operational Visit, this IP address need to be registered on data gateway, or is registered on the home agent of data gateway (or in the PDN being connected with data gateway).Under usual condition, in mobile subscriber business carries out, for keeping the continuity of business, should keep this IP address constant, and Access Network is fixed on this data gateway to the carrying link anchor of data gateway.
Local service gateway is the mobile data anchor point among a small circle of the 3GPP network terminal, is the interface entities of data gateway and Access Network 3GPP Access Network, is responsible for the routing forwarding of user data.Terminal is by 3GPP access network, no matter terminal is in ownership place or visited place, all need by local service gateway accessing data gateway access service, in Fig. 1, only illustrate the situation of 3GPP Access Network in visited place, situation in ownership place is similar, being that gateway interface 1 in Fig. 1 can be (roaming) between cross operator, can be also (non-roaming) of operator inside.
As shown in Figure 1, in the time that terminal is passed through non-3 GPP access network access service, there is the mode of multiple core network access.If terminal in ownership place, is directly used gateway interface 3 connection data gateway access business; If terminal, in roaming place, can be passed through gateway interface 3 connection data gateway access business, also can connect roaming place gateway by gateway interface 2, then by gateway interface 1 connection data gateway access business.Gateway interface 1 can be to use GTP agreement, also can use PMIP agreement, and gateway interface 2 and interface 3 is all only supported MIP agreement.
As shown in Figure 1, share core controlled entity for the user management user contracting data, the maintenance terminal relevant location information that access by various access networks, provide and preserve authentication information.A kind of typical shared core controlled entity is HSS.Local core controlled entity is for adopting the network portion of MIP agreement management is provided and controls function, for example, to implementing Certificate Authority and charging etc. from the user of WiMAX network insertion.Local core controlled entity can adopt the agreements such as Diameter to control other network entity.A kind of typical local core controlled entity is that authentication and authorization charging server AAA Server or AAA act on behalf of AAA Proxy, and wherein AAA Server is the local core controlled entity of ownership place, and AAA Proxy is visited place core controlled entity.Mobility Management Entity, as the Mobility Management Entity defining in 3GPP (Mobility Management Entity, or Serving GPRS Support Node (Serving GPRS Support Node MME), SGSN) be user's store and management identity information of accessing by 3GPP Access Network, mobility state information, security parameter etc., and user is carried out to Certificate Authority.Along with going deep into of the network integration, Mobility Management Entity and local core controlled entity all likely replace the other side, all can carry out access control to all access network types, and mobile management, carries out the processing of secure context.
Terminal is being attached to after a kind of access network, will select a network anchor point data gateway to be connected to (the Packet Data Network of outside Packet Data Network, PDN), PDN may have multiple according to business and network configuration, PDN 1 and PDN2 as shown in Figure 1, different PDN can be by different Access Point Names (Access Point Name, APN) identify, the IP address that terminal is used will be distributed by network anchor point data gateway or be provided by outside PDN network.APN is made up of network ID (Network Identifier) and/or carrier ID (Operator Identifier).Network ID is used for defining data gateway and accesses which external network, can also be used to define the service request that user terminal is sent, and this part is to exist in APN.Carrier ID has defined data gateway and has been positioned in the GPRS backbone network of which operator, and this part is optional in APN.In UNE, default APN, i.e. the APN that terminal initial access acquiescence is used, and the APN that terminal can be accessed is generally stored in and shares on core controlled entity or local core controlled entity as CAMEL-Subscription-Information.Terminal also can want the APN of access to indicate terminal to controlled entity by different modes, but only as decision references, the APN finally using is determined by network control entity.When terminal initially accesses from 3GPP Access Network, network side entity (being generally Mobility Management Entity) can be by the mode of inquiry APN, and by name server (Domain Name Server, DNS) resolve the address that APN obtains network anchor point data gateway, select one of them, certainly can directly configure fixing data gateway; And terminal is while initially accessing from non-3 GPP access network, the address that terminal can directly be obtained network anchor point data gateway from core controlled entity (HSS or AAA Server or AAAProxy) in the time of access authentication, or the APN being obtained during by access authentication by the non-3 GPP access network gateway address of inquiring about and obtaining network anchor point data gateway to DNS.As can be seen here, in different access technologies, the mode of obtaining network anchor point data gateway address is also different.When terminal is at different access technologies access network (3GPP Access Network and non-3 GPP access network, different non-3 GPP access networks) between while switching, source network and objective network are that the network anchor point data gateway of terminal distribution may be just different, this just changes the connection that causes User IP aspect, cause conversation, loss of data phenomenon occurs.Therefore,, in the time that terminal is switched between different access networks, keeping network anchor point data gateway not change is a basic demand that keeps business continuance.And in the time that identical access technology Access Network (between 3GPP Access Network, between identical non-3 GPP access network) switches, can ensure that network anchor point data gateway does not change by the user's context of source network and objective network shared access technology.
Network anchor point does not change when keeping switching between different access technologies, be by network anchor point information, and as user ID, user terminal IP address, the parameters such as network anchor point data gateway IP address, APN information are saved on core controlled entity.When terminal accesses by 3GPP Access Network, Mobility Management Entity is responsible for the network anchor point information registering of terminal to shared core controlled entity.When terminal accesses by non-3 GPP access network, network anchor point by local core controlled entity by network anchor point information registering to shared core controlled entity.When terminal is switched between 3GPP Access Network and non-3 GPP access network, share core controlled entity the network anchor point address information of preservation is sent to the controlled entity in objective network, be Mobility Management Entity or local core controlled entity, which kind of network no matter terminal be switched to like this, can obtain by core controlled entity the address of same network anchor point, and then guarantee user data can not be lost.
Because local service gateway and data gateway can have a lot of, gateway interface 1 can be to use GTP agreement, can be also to use PMIP agreement.Due to network configuration, each local service gateway and data gateway are likely only supported GTP agreement, also MIP agreement likely all, or two kinds of agreements are all supported.That is to say, the data gateway that is linked into same PDN may have support mobility management protocol not of the same race (GTP or MIP), in the time carrying out data query gateway address with APN, the data gateway in the data gateway address list obtaining may be supported different mobility management protocols.And the mobility management protocol using on gateway interface 1 must be consistent to the tenability of agreement with local service gateway and data gateway.For example, when user terminal initially accesses at 3GPP Access Network, if definite local service gateway is only supported MIP agreement, the mobility management protocol using on gateway interface 1 should be PMIP, and the data gateway of selecting so must be supported MIP agreement.If user terminal is in the time that visited place non-3 GPP access network accesses, visited place can only select to support that the gateway interface 1 of GTP agreement is local service gateway, and user terminal also can only be accessed the data gateway access service that can support GTP agreement.Equally, if user terminal is in the time that ownership place non-3 GPP access network accesses, the data gateway that the local controlled entity of ownership place can only select to support MIP agreement provides Operational Visit for terminal.
Therefore when user terminal initially accesses at 3GPP Access Network, or when user terminal initially accesses from non-3 GPP access network, the agreement using on data gateway, local service gateway and the gateway interface 1 of correct this access mode of support of How to choose become can normally support current access the problem that must will solve.
The access control function entity of controlling user's access in prior art (is Mobility Management Entity in 3GPP Access Network, in non-3 GPP access network, be by the local core controlled entity of ownership place, non-3 GPP access network gateway forms jointly, or jointly formed by visited place core controlled entity and non-3 GPP access network gateway) the data gateway address that cannot obtain according to existing APN inquiry mechanism, obtain the mobility protocol tenability of data gateway, and then cannot select suitable data gateway and local service gateway, and indicate the correct use mobility management protocol of this local service gateway set up and data gateway between carrying, for user provides service.
The existing method addressing this problem is to be fixed setting by the method for network configuration, make to know (for example, certain network) user is using when different access technologies, use fixing data gateway and local service gateway, the access control function entity that this gateway address, GTP and/or MIP agreement tenability are accessed by user terminal is preserved.But such mode has restricted the flexibility ratio of network arrangement greatly, the network of controlling in different operator is upgraded, moves, is arranged while change, can not these information of time update, and may cause user terminal access unsuccessful, or cannot access service.In addition, how to support to span into the business continuance switching between technology be also to have problem to be solved to this mode.
Summary of the invention
The object of embodiment of the present invention embodiment is to provide a kind of method that gateway is selected, to solve in the evolvement network merging at multi-access technology, for the gateway of supporting different mobility management protocols (as GTP, mobile IP protocol), how to carry out network arrangement, and for ensureing business continuance, the gateway that How to choose is suitable, comprises the problem of data gateway, local service gateway and gateway interface agreement.
In view of this, a kind of method that the embodiment of the present invention provides gateway to select, the method comprises: the requesting party of corresponding table sends network configuration request to the owner of correspondence table; The owner of described corresponding table sends the mobility management protocol ability of APN APN to the requesting party of correspondence table; The described corresponding correspondence table of showing the mobility management protocol ability for comprising described APN.
A kind of method that the embodiment of the present invention also provides gateway to select, the method comprises: access control function entity receives the user profile that core controlled entity sends; This access control function entity obtains the mobility management protocol ability of APN APN in described user profile; This access control function entity is selected gateway according to the mobility management protocol ability of described APN.
The embodiment of the present invention also provides a kind of device of selecting for gateway, and this device comprises Transmit-Receive Unit, for sending carrying foundation request to local service gateway or data gateway; Query unit, for the mobility management protocol ability of the APN that obtains according to described query unit and described APN to shared core controlled entity searching user's information, also for the mobility management protocol ability to network configuration database or local core controlled entity searching user's information APN, also for the IP address of data gateway corresponding to the APN to DNS Server searching user's information, also for the IP address of data gateway corresponding to the APN that can use to DNS Server inquiring user; And processing unit, for selecting any one of APN that data gateway, user can use, local service gateway, user access core network access service mode, also for forming FQDN according to the mobility management protocol ability of APN and APN, for sending instruction message to Transmit-Receive Unit, this instruction message indicates data gateway or the local service gateway that described Transmit-Receive Unit is selected to described processing unit to send the request of foundation of carrying.
The method and apparatus that uses the embodiment of the present invention to provide, terminal that can entity different access technologies, support the Access Network of different mobility management protocols, under roaming and non-roaming scene, can select flexibly suitable data gateway and local service gateway, and mobility management protocol access service, thereby the continuity of guarantee customer service.
Brief description of the drawings
Fig. 1 is the network architecture schematic diagram merging in prior art;
Fig. 2 is data gateway naming method schematic diagram in the embodiment of the present invention;
Fig. 3 is the schematic diagram of corresponding relation name solution one between APN and APN mobility management protocol ability in the embodiment of the present invention;
Fig. 4 is the schematic diagram of corresponding relation name solution two between APN and APN mobility management protocol ability in the embodiment of the present invention;
Fig. 5 is the schematic diagram of corresponding relation name solution three between APN and APN mobility management protocol ability in the embodiment of the present invention;
Fig. 6 is the schematic flow sheet of the method one of the corresponding table of sharing A PN and APN mobility management protocol ability in the embodiment of the present invention;
Fig. 7 is the schematic flow sheet of the method two of the corresponding table of sharing A PN and APN mobility management protocol ability in the embodiment of the present invention;
Fig. 8 is the schematic flow sheet of the embodiment of the present invention one;
Fig. 9 is the schematic flow sheet of the embodiment of the present invention two.
Embodiment
Shared core controlled entity in the embodiment of the present invention can be HSS, and local core controlled entity can be AAA Server or AAAProxy.User terminal in the time of visited place, AAA Proxy control and management user, AAA Proxy gets in touch by AAA Server and HSS, obtains user and home network information.Data gateway is the data gateway of the UNE of the early stage technology evolution formation based on 3GPP network, can support two kinds of different mobility management protocols of GTP agreement and MIP.Access control function entity is Mobility Management Entity in 3GPP Access Network, as MME or SGSN; In non-3 GPP access network, be the local core controlled entity AAA Server of ownership place or AAAProxy, or non-3 GPP access network gateway, or jointly formed by local core controlled entity and the non-3 GPP access network gateway of ownership place, or jointly formed by visited place core controlled entity and non-3 GPP access network gateway in visited place.
In the embodiment of the present invention, in 3GPP network, user profile is stored in and shares on core controlled entity, and in non-3GPP network, user profile can be stored in and shares core controlled entity or be stored on local core controlled entity.Not specifying under the situation of which network, in the embodiment of the present invention, the entity of user profile storage is referred to as to core controlled entity.
The embodiment of the present invention is to support the data gateway of certain mobility management protocol and one in network, to can be used for inquire address, and unique name is set up corresponding relation within the specific limits, the address that this name inquires may have multiple, but these data gateways all have identical attribute, can be connected to identical PDN, and have identical mobility management protocol ability (only support GTP, only support Mobile IP or both support).As shown in Figure 2, for the gateway of access PDN 1, only support the data gateway called after PDN GW NAME A of GTP, only support the data gateway called after PDN GWNAME B of Mobile IP, the called after PDN GWNAME C both supporting.This naming method can certain agreement tenability of dominant instruction, for example, in the time that NAME names, indicates the field such as GTP or Mobile IP.Also can be formulated by data gateway owner (operator) table of corresponding relation between a PDN GW NAME title and mobility protocol tenability, with the dominant relation of setting up data gateway name and mobility management protocol ability, between different Access Networks or between different carrier networks, sharing this correspondence table, for example use static between operator or dynamic roaming agreement, or adopting the mode of being inquired about separately to relation table owner by Access Network access control entity, instruction is to other network entities.
A data gateway may connect multiple PDN, as the PDN 1 in Fig. 2, PDN 2.At this moment data gateway can have different names, and the different PDN of representative access respectively, as PDN GW4:NAME B-PDN 1, NAME Y-PDN 2; PDN GW5:NAME C-PDN 1, NAME X-PDN 2).
In the embodiment of the present invention, the mobility management protocol type of indication, includes but not limited to GTP, Mobile IP etc.If needed, these mobility management protocols also can further segment, and for example, mobile IP protocol can be further subdivided into PMIP, CMIP.For explaining conveniently, following content is taking GTP and Mobile IP (MIP) as example herein.
The embodiment of the present invention provides three kinds to the solution that between APN and APN mobility management protocol ability, corresponding relation is named, and is described successively below.
Scheme one
As shown in Figure 3, directly the APN that originally indicated certain PDN of access is subdivided into different APN again according to the mobility management protocol ability of data gateway, network ID or the carrier ID of APN after segmentation to APN expands, and adds the field of dominant instruction mobility management protocol ability.The field of original APN can continue to stay in new APN with out of Memory such as instruction PDN.As shown in Figure 3, network ID or carrier ID in the APN 1 of the former PDN of visiting 1 are expanded, increased gtp, mip, gtp/mip or similar field.Certainly, due to the reason of existing network configuration, for support certain mobility management protocol data gateway (as, support the GPRS gateway service node GGSN of GTP agreement), can not change the APN of corresponding its address, and only for the data gateway (supporting new mobility management protocol) that newly increases or newly upgrade, change the APN of corresponding its address.Only have an address and can support the data gateway of two kinds of mobility management protocols simultaneously for one, can be put in the APN that only supports certain agreement, also can be separately by different APN marks, for example, PDN GW 5 in Fig. 3 also can, by APN 1_gtp or APN 1_mip mark, also can identify with APN_gtp_mip.
In the time that Access Network access control function entity obtains the APN of this new definition, mobility management protocol ability that just can specified data gateway, and according to network actual conditions and local policy (comprising agreement between operator), select suitable data gateway, the mode of core network access, for example, in the time that terminal is passed through non-3 GPP access network access service, if terminal is in ownership place, select gateway interface 3 directly to access, if terminal is in visited place, terminal can also be accessed by the mode of gateway interface 1-2 chain, select suitable local service gateway (for 3GPP Access Network, or non-3 GPP access network uses the mode of gateway interface 1-2 chain in visited place).
While switching, the address of data gateway is brought target access network.Switching in same access network type, the address of data gateway is generally passed to target access network by the context of this access network type from former Access Network.And across the switching between different access network types, the address of data gateway is generally stored in and shares core controlled entity or local core controlled entity, user terminal, in the time that target access network accesses, obtains from sharing core controlled entity or local core controlled entity.The address of local service gateway also can obtain with said method, but due to the configuration reason of local service gateway, may need gravity treatment.In the time there is gravity treatment, Access Network access control entity is according to the signing APN of user, and the data gateway that user is using or APN, local policy, roaming agreement (under roaming condition) etc. are selected suitable local service gateway.
Scheme two
As shown in Figure 4, do not change the structure of APN, indicate the same PDN of access to support the data gateway of different mobility management protocol abilities by increasing different APN, form corresponding form as shown in table 1.Between carrier network, share the correspondence table of these APN and mobility protocol ability by static or dynamic mode, also can adopt the mode of independent dynamic queries to know this corresponding relation, in corresponding form, also can add the reference as inquiry of carrier network ID row (if in APN with operation trader network information, these row not), PDN row.APN in corresponding form is exactly the APN (comprising default APN) in user terminal subscription data.Only have an address and can support to be put into the data gateway of two kinds of mobility management protocols in the APN that only supports certain agreement simultaneously for one, also can be separately by different APN marks.As shown in Figure 4, PDN GW 5 can be with APNA or APN B, or APN C mark.
When user terminal is during from the access of 3GPP or non-3 GPP access network, access control function entity obtains the signing APN (comprising default APN) of user from user contracting data, and to need the carrier network at the data gateway place of grappling to this user of object query who preserves corresponding table (be generally belonging area network, when roaming, if adopt the Operational Visit mode of routing optimality, also be likely access zone network) APN and the correspondence table of mobility management protocol ability, obtain the mobility management protocol ability that these APN support.If user face data carries out routing optimality when roaming, also may on access zone network access control function entity, configure some APN for routing optimality, access zone network access control function entity can obtain the mobility management protocol ability of the APN of these local configurations by inquiring about the corresponding table of local APN and agreement tenability.
Also can be using APN and allow mobility management protocol that user uses all as between operator CAMEL-Subscription-Information (or user signing contract information) be stored in and share on kernel entity.Now, need to be between different operators network the correspondence table of sharing A PN and agreement tenability, do not need to inquire about this ability yet.
Table 1
APN ?PDN Protocol capability Carrier network ID
APN?A ?PDN1 GTP Carrier network X
APN?B ?PDN1 MIP Carrier network X
APN?C ?PDN1 GTP/MIP Carrier network X
APN？ ?PDN？ ？ Carrier network?
Situation for user terminal from the access of 3GPP Access Network, Mobility Management Entity according to Query Result (if there is PDN information, the information such as carrier network ID, comprehensive these information) and local policy etc., select suitable data gateway (inquiry DNS Server obtains data gateway address), local service gateway, and in the time that instruction local service gateway is set up the gateway interface 1 of local service gateway and anchor point data gateway, the mobility management protocol type of data gateway address and employing is issued to local service gateway.
Situation for user terminal from non-3 GPP access network access, access control function entity according to Query Result (if there is PDN information, the information such as carrier network ID, comprehensive these information) and local policy (comprising agreement between operator) etc., first select the mode (also may further select data gateway) of suitable access service, select again local service gateway (in the time of roaming, if needed), and selecting after local service gateway, in the time that instruction local service gateway is set up the gateway interface 1 of local service gateway and anchor point data gateway, the mobility management protocol type of data gateway address and employing is issued to local service gateway.If the function of data query gateway address is positioned at local core controlled entity, when local core controlled entity mails to non-3 GPP access network gateway data gateway address, the mobility management protocol of the APN of this data gateway and this APN support is issued to Access Network gateway, data gateway address can be a data gateway address of determining, can be also a list.If the function of data query gateway address is positioned at Access Network gateway, the APN (comprising default APN) that local core controlled entity can be accessed this user terminal by this non-3 GPP access network and the mobility management protocol ability of this APN are issued non-3 GPP access network gateway.The mobility management protocol ability of APN (comprising default APN) and this APN can be a list, if there is the business of the new APN of access to initiate, directly judges whether to allow to set up at IAD.Also can be while having the business initiation of the new APN of access, by issuing Access Network gateway after local core controlled entity judgement at every turn.
Scheme three
As shown in Figure 5, do not change the structure of APN, continue to use original APN and the corresponding relation of PDN, what use defined is extended to the same PDN of different fully qualified domain name (Fully Qualified Domain Name, FQDN) instruction access and is supported the data gateway of different mobility management protocol abilities by APN.Between carrier network, share the correspondence table (or the mode that adopts independent dynamic queries is known this corresponding relation) of these APN and mobility management protocol ability by static or dynamic mode, in form, also can add carrier network ID row (if in APN with operation trader network information, these row not), PDN row are as the reference of inquiry.Different with first scheme, the mobility protocol ability that in this programme, the data gateway of APN representative can be supported refers to the mobility protocol tenability that uses all data gateways that this APN can parse, the i.e. union of all data gateway abilities.APN in this table is exactly the APN (comprising default APN) in the subscription data of user terminal.To in prior art, carry out the required parameter of the method for DNS data query gateway address and support in conjunction with this APN the ability of mobility protocol with APN, the FQDN that is built into (can be network ID to APN or the expansion of carrier ID), as shown in table 2, determine the data gateway address of mobility management protocol ability for certain of inquiring about from DNS Server that this APN points to, as shown in table 3, this list is generally provided by data gateway owner.
Above-mentioned FQDN also can be directly stored in the correspondence table of above-mentioned APN and mobility management protocol ability by data gateway owner, increases by a list at the correspondence table shown in Fig. 5 and shows FQDN corresponding to each row APN.At this moment, access control entity just can directly obtain the FQDN for data query gateway address in the time of the mobility management protocol ability of inquiry APN.
Or the FQDN in the APN of the upper storage of data gateway owner and the correspondence table of mobility management protocol ability can be also the title being defined according to actual demand by network management personnel.
Table 2
Table 3
FQDN PDN GW IP address
FQDN?A PDN GW 1,2,5IP address
FQDN?B PDN GW 3,4,5IP address
FQDN?D PDN GW 6,7IP address
FQDN?E PDN GW 8,9IP address
FQDN？ PDN GW? IP address
? ?
Also can and allow the mobility management protocol that user uses to be all stored in and to share on kernel entity as subscription data (CAMEL-Subscription-Information or user signing contract information between operator) using APN.Now, Access Network access control entity only need to carry out DNS by the mobility management protocol composition FQDN of the APN in CAMEL-Subscription-Information and permission use and inquire about the address that obtains data gateway, need to be between different operators network the correspondence table of mobility management protocol ability of sharing A PN and APN, do not need to inquire about this ability yet.
When user terminal is during from the access of 3GPP or non-3 GPP access network, access control function entity obtains the signing APN (comprising default APN) of user from user contracting data, and to need the data gateway place carrier network of grappling (be generally belonging area network to preserving in Fig. 5 this user of object query of corresponding table, when roaming, if adopt the Operational Visit mode of routing optimality, also be likely access zone network) APN and the corresponding table of the mobility management protocol ability of APN, obtain the mobility management protocol ability that these APN can support.If user face data carries out routing optimality when roaming, also may on access zone network access control function entity, configure some APN for routing optimality, access zone network access control function entity can obtain the mobility management protocol ability of the APN of these local configurations by inquiring about the corresponding table of local APN and mobility management protocol ability.
Access for 3GPP, Mobility Management Entity according to Query Result (if there is PDN information, the information such as carrier network ID, comprehensive these information) and local policy etc., select suitable data gateway, local service gateway, and in the time that instruction local service gateway is set up the gateway interface 1 of local service gateway and anchor point data gateway, the mobility management protocol type of data gateway address and employing is issued to local service gateway.Use the FQDN of APN and mobility management protocol ability composition to the address of DNS Server query-relevant data gateway.
For non-3GPP access, access control function entity according to Query Result (if there is PDN information, the information such as carrier network ID, comprehensive these information) and local policy etc., first select the mode (also may further choose data gateway) of suitable access service, select again local service gateway (in the time of roaming, if needed), and selecting after local service gateway, in the time that instruction local service gateway is set up the gateway interface 1 of local service gateway and anchor point data gateway, the mobility management protocol type of data gateway address and employing is issued to local service gateway.Use the FQDN of APN and mobility management protocol ability composition to the address of DNS Server query-relevant data gateway.If the function of data query gateway address is positioned at local core controlled entity, when local core controlled entity mails to non-3 GPP access network gateway data gateway address, the protocol capability of the APN of this data gateway and this APN support is issued to Access Network gateway, data gateway address can be a data gateway address of determining, can be also a list.If the function of data query gateway address is positioned at Access Network gateway, the protocol capability that the APN (comprising default APN) that local core controlled entity can be accessed this user terminal by this non-3 GPP access network and this APN support is issued non-3 GPP access network gateway, by Access Network gateway structure FQDN, can be also the FQDN having constructed in the corresponding table of mobility management protocol ability.The mobility management protocol ability (or the FQDN having constructed) that APN (comprising default APN) and this APN support can be a list, if there is the business of the new APN of access to initiate, directly judges whether to allow to set up at IAD.Also can be while having the business initiation of the new APN of access, by issuing Access Network gateway after local core controlled entity judgement at every turn.
In scheme two and scheme three, the corresponding table of APN and APN mobility management protocol ability should include but not limited to the corresponding relation of APN and APN mobility management protocol ability, also may comprise the information such as this APN belonging network carrier ID, PDN.The APN here can be the original APN under standard definition meaning, can be also the title that has common definition in a certain limit, as FQDN.
Three kinds of schemes have specifically been told about the method corresponding to mobility management protocol ability of APN and data gateway above, and how to obtain the method for this information.In scheme one, the store method of the new APN after expanding is the same with store method of the prior art, is kept at agreement, operator's local policy and carrying between user's subscription data, operator and sets up in request.Any network node, by existing method, i.e. name query mechanism, can obtain definite address list that passes through certain mobility management protocol and access the data gateway of this PDN.In scheme two and scheme three, because newly-generated correspondence table can be kept in signing between operator or user contracting data, also can between different operators, share by static or dynamic mode, or be kept at one independently in network entity, therefore must how to obtain up-to-date correspondence table by the network entity of the corresponding table of the suitable mode request of solving, or between different operators network, how share the problem of corresponding table.The embodiment of the present invention provides the acquisition methods of two kinds of corresponding tables, describes respectively below.For convenience of explanation, in following examples, the corresponding table of the mobility management protocol ability of APN is referred to as correspondence table.
In these two kinds of methods, the requesting party of corresponding table can be Access Network controlled entity, or the local network configuration database of requesting party's network of corresponding table.
Corresponding table Requested Party (i.e. the owner of corresponding table) can be shared core controlled entity or other privately owned/total network configuration database of the carrier network of the control data gateway of APN instruction in corresponding table, can be also local core controlled entity or other privately owned/total network configuration database of requesting party's network of corresponding table.
Method one adopts the mode of the corresponding table information of requesting party's active request of corresponding table, and as shown in Figure 6, the method comprises
Step 601: the requesting method of corresponding table send request network configuration information; This solicited message can, for showing request, send separately the request of the corresponding table of an APN and APN mobility management protocol ability; Or this solicited message is implicit request, is carried in existing information and sends.In this solicited message, can also carry the information such as ID, PDN of APN operator.
Step 602: the owner of corresponding table sends APN and the corresponding table of APN mobility management protocol ability to the requesting party of correspondence table.
Method two adopts the mode of the corresponding table information of requesting party's active request of corresponding table.As shown in Figure 7, the method comprises:
Step 701: the requesting party of corresponding table sends APN (or being APN list), the mobility management protocol ability of inquiry APN to the owner of correspondence table;
Step 702: the owner of corresponding table is to the IP address of data gateway corresponding to DNS Server inquiry APN, and this step is option;
Step 703: the corresponding table of mobility management protocol ability that the owner of corresponding table sends APN to the requesting party of correspondence table, if carry out step 702, also sends the IP address of the data gateway that APN is corresponding.
If the owner of corresponding table is network configuration database here, DNS Server can be arranged in same entity with this network configuration database.
Be more than the method that concrete methods of realizing to the corresponding table of APN in the embodiment of the present invention and APN mobility management protocol ability and network entity obtain this correspondence table, below illustrate in the embodiment of the present invention and how to utilize this correspondence table to realize the method that gateway is selected.In APN and APN mobility management protocol ability corresponding relation implementation one, the store method of the APN of new expansion is the same with existing method, so it is the same with the method for obtaining APN in existing method that network entity obtains the method for APN mobility management protocol ability, obtain APN, just known the mobility management protocol ability of APN simultaneously.In following examples, use the corresponding table of APN and APN mobility management protocol ability, i.e. the method for scheme two or scheme three.
The embodiment of the present invention provides the corresponding table of the mobility management protocol ability of a kind of APN of use and APN to select the method for gateway, when the method has been described user terminal from the initial access of 3GPP Access Network or has been switched to 3GPP Access Network from the Access Network of other types, the selection course of data gateway, local service gateway and mobility management protocol.When user roams, data gateway and local service gateway can be positioned at different carrier networks.Be illustrated in figure 8 the schematic flow sheet of the embodiment of the present invention, this flow process comprises:
Step 801: user terminal access Mobility Management Entity.
Step 802: Mobility Management Entity is to shared core controlled entity request user profile, and this solicited message can be carried in other message and be sent, and also can send separately.
Step 803: share the mobility management protocol ability of core controlled entity to APN in network configuration database searching user's information.This network configuration database is positioned at user attaching network.This step is option.
Step 804: share core controlled entity and reply user's (contracting) information to Mobility Management Entity.If carried out the inquiry (or just have in CAMEL-Subscription-Information APN mobility management protocol ability) of step 803, can also carry the correspondence table of APN and APN mobility management protocol ability in this message.For the switching of cross-over connection networking type, be switched to 3GPP Access Network from non-3GPP net, in this reply message, can also carry and be stored in the user who shares in core controlled entity and carrying out the mobility management protocol using when the mobility management protocol ability of IP address, this data gateway of the data gateway of Operational Visit and/or user connect the data gateway address that this is accessing.
Step 805: if do not carry out the inquiry of step 803, in this step, Mobility Management Entity, to the mobility management protocol ability of APN in network configuration database searching user's information, obtains the corresponding table of mobility management protocol ability of APN and APN.This network configuration database can be positioned at user attaching network, also can be positioned at user visiting network.
Step 806: Mobility Management Entity is according to the selection of being correlated with of preset strategy, if terminal is initial access, consider the mobility management protocol ability of APN in network configuration cases, local policy and user profile, the APN that selection user can access is (when roaming, this APN refers generally to belonging area network data gateway, if adopt the Operational Visit mode of routing optimality, can distribute the APN that points to visited place data gateway by Access Network access control entity), and select suitable local service gateway.If terminal is to be switched to 3GPP network, Mobility Management Entity also will according to carry out Operational Visit data gateway mobility management protocol ability and/or access this data gateway the mobility management protocol of use select local service gateway.
Step 807: if terminal is initial access, Mobility Management Entity uses the operable APN of user selecting in step 806 to DNS Server data query gateway address, selects the mobility management protocol of data gateway and/or use.It is the correspondence table implementation in scheme two if used herein, Mobility Management Entity also will form FQDN, for DNS inquiry, if or comprised FQDN in the corresponding table of the mobility management protocol ability of the APN obtaining and APN in step 804 or step 805, Mobility Management Entity would directly use this FQDN to carry out DNS inquiry.
Step 808: Mobility Management Entity sends message instruction to local service gateway and sets up carrying, carries the mobility management protocol of data gateway address and use in this message.For the switching across different access network types, this message can also be carried Mobility Management Entity and carried out the address of data gateway of Operational Visit and the mobility management protocol type using from sharing the active user who obtains core controlled entity, may also comprise the mobility management protocol ability of this data gateway.Switch for 3GPP inside, active user is carrying out the address of data gateway of Operational Visit and the mobility management protocol type (may also comprise the mobility management protocol ability of this data gateway) using is obtained from mobility context, and this mobility context obtains from the Mobility Management Entity before switching.
Step 809: user terminal is accomplished to the carrying of data gateway and sets up.Deposit address and the mobility management protocol type (may also comprise the mobility management protocol ability of this data gateway) of the data gateway choosing (switching networking for cross-over connection also has the just data gateway in access service) in MM Context.When user accesses local mobile management entity in user signing contract information, allow APN and the mobility management protocol ability thereof of access also to deposit MM Context in.
Step 810: the mobility management protocol that data gateway uses the address of oneself, mobility management protocol ability and/or user can be connected to the data gateway of accessing time stores into and shares core controlled entity.
For the switching of 3GPP access network inside, after carrying has been set up, target mobility management entity allows the APN that accesses and the mobility management protocol ability of APN to deposit on shared core controlled entity by obtain mobility management protocol, source Mobility Management Entity that user just using in the time that address, its mobility management protocol ability and/or the user of the data gateway of access service connect the data gateway of accessing from user mobility managing context in the time that user accesses.
The embodiment of the present invention provides the corresponding table of the mobility management protocol ability of another kind of use APN and APN to select the method for gateway, when the method has been described user terminal from the initial access of non-3 GPP access network or has been switched to non-3 GPP access network from the Access Network of other types, the selection course of data gateway, local service gateway and mobility management protocol.When user roams, data gateway and local service gateway can be positioned at different carrier networks, or not necessarily can use local service gateway.The method of the present embodiment is equally applicable to the inside switching of non-3 GPP access network of the same race.Be illustrated in figure 9 the schematic flow sheet of the embodiment of the present invention two, this flow process comprises:
Step 901: user terminal access access control function entity.
Step 902: local core controlled entity is to shared core controlled entity request user profile, and this message can be carried in other message and send, or send separately.
Step 903: share the mobility management protocol ability of core controlled entity to APN in network configuration database searching user's information, this step is optional step.
Step 904: share core controlled entity and reply user's (contracting) information to local core controlled entity, if carried out the inquiry (or just have in CAMEL-Subscription-Information APN mobility management protocol ability) of step 903, in this message, can also carry the corresponding table of APN and this APN mobility management protocol ability.For the switching (or roaming) of cross-over connection networking type, this reply message can also be carried the IP address of data gateway and the mobility management protocol ability of this data gateway that are stored in the user who shares in core controlled entity or ownership place core controlled entity and are carrying out Operational Visit, and/or the mobility management protocol that uses while connecting the data gateway address that this is accessing of user.
Step 905: if do not carry out the inquiry of step 903, local core controlled entity is to the mobility management protocol ability of APN in network configuration database searching user's information.
Step 906: local core controlled entity is according to the selection of being correlated with of preset strategy, even user terminal initial access network, consider network configuration cases, local policy, roaming agreement, the mobility management protocol ability of APN in the signing and user profile of user, select the mode of user access core network access service (in the time of ownership place, directly to access by gateway interface 3 modes, in the time of roaming, can also access by the mode of gateway interface 1-2 chain), the APN that user can access is (when roaming, this APN refers generally to belonging area network data gateway, if adopt the Operational Visit mode of routing optimality, can distribute the APN that points to visited place data gateway by Access Network access control entity, if access by gateway interface 3 modes, can only select to support the APN of MIP protocol capability) or data gateway, and can select suitable local service gateway (only to roaming).If the handoff scenario of user terminal in roaming place, local core controlled entity also will according to carry out Operational Visit data gateway mobility management protocol ability and/or access the mobility management protocol that this data gateway using and select local service gateway.
In this step, when the mode of user access core network access service and roaming, the selection of local service gateway may not carried out on local core controlled entity, and carries out at Access Network gateway.At this moment, local core controlled entity is the APN user's (contracting) information obtaining from shared core controlled entity, and the information such as the IP address of data gateway and the mobility management protocol ability of this data gateway that user is carrying out Operational Visit sends to Access Network gateway.
Step 907: if APN or the data gateway of selecting user to access by local core controlled entity, for initial access, local core controlled entity can use the operable APN of user of above-mentioned selection to DNS Server data query gateway address, and further selects data gateway.If corresponding table used herein is the implementation that adopts corresponding table in aforementioned schemes three, local core controlled entity also will form FQDN, inquires about for DNS; If or comprised FQDN mono-row in the corresponding table of the mobility management protocol ability of obtaining in step 904 or step 905, local core controlled entity could directly carry out DNS inquiry with this FQDN.
Step 908: local core controlled entity sends message to Access Network gateway, this message is carried APN and the APN that mobility management protocol ability correspondence is shown and/or this locality can be accessed of APN and the mobility management protocol ability of APN in user's (contracting) information, can also carry APN and mobility management protocol ability thereof that local core controlled entity location allows this user to access, if APN or the data gateway of selecting user to access by local core controlled entity, and carry out the inquiry of step 907, this message can also be carried the IP address (or IP address list) of the data gateway of selection, the mobility management protocol ability of this data gateway and/or the mobility management protocol of selection.For the switching of cross-over connection networking type, in this message, can also carry the user who obtains (or the storage of local core controlled entity) from sharing core controlled entity and carry out the mobility management protocol using when the data gateway address of Operational Visit and mobility management protocol ability and/or user connect the data gateway address that this is accessing.
If user uses the mode of gateway interface 1-2 chain to roam, and local core controlled entity has been selected local service gateway, the message sending in this step also will be carried local service gateway address, may also comprise the mobility management protocol ability of local service gateway.
Step 909: if do not carry out the inquiry of step 903 or step 905, in this step Access Network gateway can searching user's information in the mobility management protocol ability of APN.
If the local core controlled entity selection of not being correlated with in step 906, Access Network gateway is according to the selection of being correlated with of preset strategy, even user terminal is initial access network, consider network configuration cases, local policy, roaming agreement, user is signing, in user profile, the mobility management protocol ability of APN selects the mode of user access core network access service (in the time of ownership place, by gateway interface 3 modes, in the time of roaming place, can also pass through the mode of gateway interface 1-2 chain), the APN that user can access is (while access by gateway interface 3 modes, can only select to support the APN of mobile IP protocol ability) or data gateway, and can select suitable local service gateway (only to roaming).If the switching state of terminal in roaming place, Access Network gateway also will be selected local service gateway according to the mobility management protocol that carries out using when the mobility management protocol ability of data gateway of Operational Visit and/or user connect the data gateway address that this is accessing.
Step 910: if do not carry out the inquiry of step 907, and select data gateway by Access Network gateway, Access Network gateway uses the operable APN of user selecting in step 909 to DNS Server data query gateway address, and further selects data gateway.If use the implementation method of corresponding table in aforementioned schemes two, Access Network gateway also will form FQDN, for DNS inquiry, or in the corresponding table of the mobility management protocol ability of the APN obtaining in step 908 and APN, contain FQDN, Access Network gateway can directly carry out DNS inquiry with this FQDN.
If user's roaming, the mode of determining user access core network access service is by the mode of gateway interface 1-2 chain, comprises the following steps 911-step 913.
Step 911: if select data gateway by visited place core controlled entity, core controlled entity in visited place can be issued local service gateway by data gateway address and definite mobility management protocol using.This step is optional step.
Step 912: request is set up in the carrying that Access Network gateway is initiated gateway interface 2 to local service gateway.If carry out step 911, Access Network gateway has obtained relevant information in step 908, and data gateway address and definite mobility management protocol using are issued local service gateway by Access Network gateway.
Step 913: local service gateway is set up after request in the carrying of receiving the gateway interface 2 that IAD is sent, the data gateway address obtaining by 911 steps or 912 steps and mobility management protocol instruction, initiate the carrying of gateway interface 1 and set up request to data gateway.
Step 914: if determine that the mode of user access core network access service is the mode (roaming or non-roaming state) by gateway interface 3 chains, request is set up in the carrying that Access Network gateway is initiated gateway interface 3 to data gateway.Data gateway address can be that local core controlled entity sends, and can be also that Access Network gateway oneself is selected.
Step 915: user terminal is accomplished to the carrying of data gateway and sets up.User terminal (may also comprise the mobility management protocol ability of data gateway) deposits the mobility management protocol type of the address of the data gateway choosing (switching networking for cross-over connection also has the just data gateway in access service) and choice for use in the MM Context of this Access Network.In user signing contract information, user accesses local Access Network access control entity and allows the APN accessing, and mobility management protocol ability also deposits the MM Context of this Access Network in.In this time user's access, allow the mode of user access core network access service also can deposit the MM Context of Access Network in.
Step 916: the mobility management protocol that data gateway uses the address of oneself, mobility management protocol ability and/or user can be connected to the data gateway of accessing time stores into and shares in core controlled entity (or local core controlled entity is generally the local core controlled entity of ownership place).
If terminal is initiated new service request after access network, this flow process is further comprising the steps of:
Step 917: user sends APN (or APN list), the business that instruction will access or PDN to Access Network gateway;
Step 918: Access Network gateway sends request to local core controlled entity, the mobility management protocol ability of inquiry APN (or APN list), in query messages, can also carry affiliated carrier network ID, the PDN information etc. of APN that will inquire about, this query messages can send separately, also can be carried in other existing message and send;
Step 919: local core controlled entity is inquired about the IP address of the data gateway that above-mentioned APN (or APN list) is corresponding to DNS Server.The IP address that can also carry the data gateway that described APN is corresponding in described response to query message, also can carry the information such as network ID, PDN of the operator under the APN that will inquire about.Or the FQDN of data gateway, and the mobility management protocol ability of mobility management protocol ability and/or selection.This step is option.
Step 920: local core controlled entity, to Access Network gateway response to query message, carries the corresponding table of mobility management protocol ability of APN (or APN list) in this message.If carry out step 919, the IP address of the data gateway that APN that this reply message can also be carried described inquiry is corresponding.
For the switching of non-3GPP access technology inside, target access network access control entity just may obtain the mobility management protocol, the former Access Network access control entity that in the time that address, mobility management protocol ability and/or the user of the data gateway of access service connect the data gateway that this is accessing, use and in the time that user accesses, allow APN that user accesses and the mobility management protocol ability of this APN from user mobility managing context.
It is a kind of for carrying out the access control function entity of gateway selection that the embodiment of the present invention also provides, and this entity comprises: Transmit-Receive Unit, query unit, processing unit, wherein,
Transmit-Receive Unit, for sending carrying foundation request to local service gateway or data gateway.
Query unit, for to shared core controlled entity searching user's information; Also for the mobility management protocol ability to network configuration database or local core controlled entity searching user's information APN; Also for the IP address of data gateway corresponding to the APN to DNS searching user's information; Also for the IP address of data gateway corresponding to the APN that can use to DNS inquiring user.
Processing unit, selects any one of APN that data gateway, user can use, local service gateway, user access core network access service mode for the mobility management protocol ability of the APN that obtains according to query unit and APN; Also, for according to the mobility management protocol ability composition FQDN of APN and APN, for sending instruction message to Transmit-Receive Unit, the data gateway that this instruction message instruction transmitting element is selected to processing unit or local service gateway send carrying and set up request.
Above-mentioned access control function entity is in non-3GPP network time, local core controlled entity and the non-3 GPP access network gateway that can be ownership place form jointly, or are jointly made up of visited place core controlled entity and non-3 GPP access network gateway in visited place.In the time that access control function entity is made up of two kinds of entities, these two kinds of entities all have above-mentioned functions unit, and have identical function.And the query unit of Access Network gateway can also be used for the mobility management protocol ability of the APN sending to local core controlled entity inquiring user; The Transmit-Receive Unit of local core controlled entity is also for sending the IP address of the data gateway that the mobility management protocol ability of above-mentioned APN and/or described APN are corresponding to Access Network gateway.
It is more than the description of the specific embodiment of the method and apparatus selected of a kind of gateway that the embodiment of the present invention is provided, comprise the implementation method of APN and APN mobility management protocol ability corresponding relation, comprise by APN structure, increase instruction, or set up mapping table, structure FQDN, and in terminal access or handoff procedure, utilize above-mentioned corresponding relation to carry out the method that gateway (comprising data gateway, local service gateway) is selected, make to support the data network gateway of different mobility management protocols to configure and be connected on identical PDN.The terminal of different access technologies, supports the Access Network of different mobility management protocols, under roaming and non-roaming scene, can select flexibly suitable data gateway and local service gateway, and mobility management protocol access service.
It is more than the detailed introduction of a kind of method of selecting gateway that the embodiment of the present invention is provided, applied principle and the execution mode of specific case to the embodiment of the present invention herein and set forth, the explanation of above embodiment is just for helping to understand method and the core concept thereof of the embodiment of the present invention; , for one of ordinary skill in the art, according to the thought of the embodiment of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as the restriction to the embodiment of the present invention meanwhile.

Claims (22)

1. a method for the corresponding table of the mobility management protocol ability of shared access point title, is characterized in that, the method comprises:
The requesting party of corresponding table sends network configuration request to the owner of correspondence table;
The requesting party of described corresponding table receives the mobility management protocol ability of the APN APN of owner's transmission of described corresponding table;
The described corresponding correspondence table of showing the mobility management protocol ability for comprising described APN; APN in described corresponding table is corresponding with the mobility management protocol ability of data gateway.
2. the method for claim 1, is characterized in that,
Described data gateway is used for accessing same grouped data network PDN, and supports different mobility management protocol abilities.
3. the method for claim 1, is characterized in that, the APN in described corresponding table is corresponding with the mobility management protocol ability of data gateway specifically to be comprised:
APN in described corresponding table is corresponding with the mobility management protocol ability of all data gateways that can be parsed by described APN.
4. the method as described in any one claim in claim 1-3, is characterized in that, also comprises any one in fully qualified domain name FQDN, PDN mark and described APN belonging network operator mark in the corresponding table of described mobility management protocol ability.
5. method as claimed in claim 4, is characterized in that, the mobility management protocol ability that described FQDN comprises described APN and described APN.
6. method as claimed in claim 4, is characterized in that, when the requesting party of described corresponding table receives the described mobility management protocol ability of owner's transmission of described corresponding table, also receives the IP address of the data gateway that described APN is corresponding.
7. method as claimed in claim 4, is characterized in that,
The owner of described corresponding table is: in described corresponding table, control the shared core controlled entity of the operator of the data gateway of described APN instruction, or privately owned or total network configuration database, or the requesting party's of corresponding table local core controlled entity;
The requesting party of described corresponding table is: Access Network control functional entity, or the local network configuration database of requesting party's network of corresponding table.
8. a method for the corresponding table of the mobility management protocol ability of shared access point title, is characterized in that, the method comprises:
The owner of corresponding table receives the network configuration request of requesting party's transmission of corresponding table;
The owner of described corresponding table sends the mobility management protocol ability of APN APN to the requesting party of described corresponding table;
The described corresponding correspondence table of showing the mobility management protocol ability for comprising described APN; APN in described corresponding table is corresponding with the mobility management protocol ability of data gateway.
9. method as claimed in claim 8, is characterized in that, described data gateway is used for accessing same grouped data network PDN, and supports different mobility management protocol abilities.
10. method as claimed in claim 8, is characterized in that, the APN in described corresponding table is corresponding with the mobility management protocol ability of data gateway specifically to be comprised:
APN in described corresponding table is corresponding with the mobility management protocol ability of all data gateways that can be parsed by described APN.
11. methods as described in any one claim in claim 8-10, it is characterized in that, in the corresponding table of described mobility management protocol ability, also comprise any one in fully qualified domain name FQDN, PDN mark and described APN belonging network operator mark.
12. methods as claimed in claim 11, is characterized in that, when the owner of described corresponding table sends the mobility management protocol ability of described APN to the requesting party of correspondence table, also send the IP address of the data gateway that described APN is corresponding.
The equipment of the corresponding table of mobility management protocol ability of 13. 1 kinds of shared access point titles, is characterized in that, this equipment comprises:
For send the device of network configuration request to the owner of correspondence table;
Be used for the device of the mobility management protocol ability of the APN APN of the owner's transmission that receives described corresponding table;
The described corresponding correspondence table of showing the mobility management protocol ability for comprising described APN; APN in described corresponding table is corresponding with the mobility management protocol ability of data gateway.
14. equipment as claimed in claim 13, is characterized in that, described data gateway is used for accessing same grouped data network PDN, and support different mobility management protocol abilities.
15. equipment as claimed in claim 13, is characterized in that, the APN in described corresponding table is corresponding with the mobility management protocol ability of data gateway specifically to be comprised:
APN in described corresponding table is corresponding with the mobility management protocol ability of all data gateways that can be parsed by described APN.
16. equipment as described in any one claim in claim 13-15, it is characterized in that, in the corresponding table of described mobility management protocol ability, also comprise any one in fully qualified domain name FQDN, PDN mark and described APN belonging network operator mark.
17. equipment as claimed in claim 16, it is characterized in that, described for the device that receives described mobility management protocol ability also in the described mobility management protocol ability sending the owner who receives described corresponding table, receive the IP address of the data gateway that described APN is corresponding.
The equipment of the corresponding table of mobility management protocol ability of 18. 1 kinds of shared access point titles, is characterized in that, this equipment is the owner of corresponding table, and this equipment comprises:
Be used for the device of the network configuration request of the requesting party's transmission that receives corresponding table;
For send the device of the mobility management protocol ability of APN APN to the requesting party of described corresponding table;
The described corresponding correspondence table of showing the mobility management protocol ability for comprising described APN; APN in described corresponding table is corresponding with the mobility management protocol ability of data gateway.
19. equipment as claimed in claim 18, is characterized in that, described data gateway is used for accessing same grouped data network PDN, and support different mobility management protocol abilities.
20. equipment as claimed in claim 18, is characterized in that, the APN in described corresponding table is corresponding with the mobility management protocol ability of data gateway specifically to be comprised:
APN in described corresponding table is corresponding with the mobility management protocol ability of all data gateways that can be parsed by described APN.
21. equipment as described in any one claim in claim 18-20, it is characterized in that, in the corresponding table of described mobility management protocol ability, also comprise any one in fully qualified domain name FQDN, PDN mark and described APN belonging network operator mark.
22. equipment as claimed in claim 21, it is characterized in that, described for the device that sends described mobility management protocol ability also in sending the mobility management protocol ability of described APN to the requesting party of described corresponding table, send the IP address of the data gateway that described APN is corresponding.
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