CN101582828B - Method and system for establishing the binding of access gateway - Google Patents

Method and system for establishing the binding of access gateway Download PDF

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Publication number
CN101582828B
CN101582828B CN2008100969749A CN200810096974A CN101582828B CN 101582828 B CN101582828 B CN 101582828B CN 2008100969749 A CN2008100969749 A CN 2008100969749A CN 200810096974 A CN200810096974 A CN 200810096974A CN 101582828 B CN101582828 B CN 101582828B
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binding
mobile
proxy
ability
iad
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CN101582828A (en
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赵孝武
王伟
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ZTE Corp
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ZTE Corp
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Priority to CN2008100969749A priority Critical patent/CN101582828B/en
Priority to PCT/CN2009/070148 priority patent/WO2009137994A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/06—Interfaces between hierarchically different network devices between gateways and public network devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18—Service support devices; Network management devices
    • H04W88/182—Network node acting on behalf of an other network entity, e.g. proxy

Abstract

The invention discloses a method for establishing the binding of an access gateway, comprising the following steps: SRNC obtains the binding ability of PMIP supported by AGW; when eBS obtains conversation information from the SRNC, the SRNC transmits the binding ability of the PMIP supported by the AGW to the eBS; and the eBS stores the binding ability of the PMIP supported by the AGW, and transmits the registration request information of acting mobile IP to the AGW according to the self ability of the eBS and the obtained binding ability of the PMIP supported by the AGW so as to establish thecorresponding binding to the AGW. In addition, the invention also discloses a system for establishing the binding of an access gateway. By using the invention, the optimization of the establishing pr ocedure of PMIP binding between the eBS and the AGW in a UMB network is realized by transmitting the PMIP support ability of the AGW in an access network, and unnecessary signal interaction is avoided.

Description

Binding of access gateway method for building up and system
Technical field
The present invention relates to Ultra-Mobile Broadband (Ultra Mobile Broadband, the UMB) communications field, and especially, relate to a kind of binding of access gateway method for building up and system.
Background technology
The all evolution of relevant art in research and development period from now on of wireless telecommunications different access technologies field is to improve the performance and the professional ability of system.UMB is the evolution technology of code division multiple access (CDMA) 2000 access technologies, many technology of UMB air interface can promote the performance of CDMA 2000 inserting technology networks greatly, thereby have established nature basis for the user provides the radio multimedium business of more requirements at the higher level.
In order to support the technology of UMB air interface, corresponding network is also carrying out new evolution.Fig. 1 is the network configuration block diagram of the Access Network of the support UMB technology determined in the correlation technique.
The function of each network element is as follows among Fig. 1:
IAD (Access Gateway is called for short AGW) inserts required " the IP adherent point " of data packet network for access terminal (AccessTerminal is called for short AT) provides, and therefore for AT, in fact AGW is exactly first hop router.
The base station of evolution (Evolved Base Station is called for short eBS) is the logic entity that can communicate with AT on wireless carrier.To each AT that serves, eBS comprises an access network route example (Access Network Route Instance is called for short ANRI).To each AT, eBS can bear at least one among following a plurality of role: forward link service base station (Forward Link Serving eBS, abbreviation FLSE), reverse link serving BS (Reverse Link Serving eBS, abbreviation RLSE), data adherent point (Data Attachment Point, be called for short DAP), certainly, to each AT, eBS can also bear other role, enumerates no longer one by one here;
For AT, DAP is that it is when receiving forward link data and the communication point that communicates of AGW on loading end, AGW issues DAP with data and the signaling relevant with AT, and both can issue AGW by DAP from the reverse link data that AT comes, and also can directly issue AGW by RLSE;
Session reference network controller (Session Reference Network Controller, abbreviation SRNC) is responsible for the session reference between maintenance and the AT, SRNC also is responsible for idle state management to AT and provides support and participate in authentication to AT, and when being in idle condition, AT provides the paging controlled function, and to each AT that supports, SRNC comprises a session anchor point ANRI.
In the UMB network technology, carry the transmission of data by setting up the proxy-mobile IP tunnel between eBS and the AGW.These proxy-mobile IP tunnel binding (Proxy Mobile IPBinding) comprise following type:
(1) basic proxy-mobile IP binding (Primary Proxy Mobile IP Binding, PMIP binding): be also referred to as single proxy-mobile IP binding, set up in case basic proxy-mobile IP is bound successfully, AGW will only send forward chain data pack to this eBS;
(2) a plurality of PMIP bindings (Multiple PMIP Binding): based on AT, if AGW is configured to use many bindings, then AGW only handles the data of the AT that receives from the eBS of the data of the AT that receives with its eBS that has successfully set up reverse link PMIP registration (just Binding Type extention is set to RL OnlyBinding) or basic PMIP registration, and the data that send over for other eBS, AGW will abandon;
(3) signaling only has PMIP binding (Signaling-Only PMIP Binding): for AT, signaling only has PMIP to be bundled in some to exist constantly.AGW no longer sends any packet to this entity that relates to AT, but when data arrives AGW, sends the data notification signaling message to it.
The PMIP binding of IPV4 is generally after the AT authentication passes through, after AT obtains the information of network of relation by Access Network, for example, obtain after Link ID, the KI etc., evolved base station and AGW set up initial p MIP tunnel or binding, and this binding can be RL+Primary or Primary PMIP binding.
If AT increases an eBS in its set of routes, if this eBS wishes to set up and AGW between proprietary reverse tunnel or binding, then this eBS and AGW can set up oppositely only PMIP tunnel.
Be DAP if certain eBS is thought of as, then it can be by setting up RL+Primary or Primary PMIP binding with AGW.
EBS sets up various tunnels or binding all is to give AGW by PMIP registration request (rrq) message, depends on the ability of eBS, will have the binding type that different extended fields shows that eBS attempts to set up in the PMIP rrq message of transmission.Specific as follows:
(1) if eBS sets up single PMIP binding, then do not carry ' Binding Type Extension ' in the PMIP rrq message;
(2) if eBS sets up reverse only PMIP binding, then carry ' RL Only Binding Type Extension ' in the PMIP rrq message; If AGW does not support oppositely only to have binding, then AGW will return PMIP RRP message, and carry code value 129 (xxx).;
(3) if eBS sets up the only PMIP binding of signaling, then carry ' Signaling Only Binding Type Extension ' in the PMIP rrq message, if AGW does not support signaling that binding is only arranged, then AGW will return PMIP RRP message, and carry code value 129 (xxx).?
(4) if eBS wants to set up a plurality of PMIP bindings, then the PMIP rrq message comprises RL+Primary Binding Type Extension '.
In addition, if AGW does not support ' Binding Type Extension ' field, then PMIPRRQ message will voicelessly be abandoned, in this case, do not have advise of same and send to evolution base station or SRNC, will cause eBS/SRNC to send the PMIP rrq message again like this, and these message finally all can be abandoned, but without any notice repeatedly.
Therefore,, will help very that eBS is correct to be judged and successfully set up corresponding tunnel or binding, thereby avoid not supporting the repeatedly interacting message that causes because of AGW if can allow eBS know that AGW supports the ability of PMIP binding.
Prior art has proposed in the following manner the ability of AGW is defined:
0：AGW?supports?Primary?type?of?binding?only
1：AGW?supports?Primary+Reverse-Link?types?of?bindings
2：AGW?supports?Primary+Signaling?types?of?bindings
3：AGW?supports?Primary+Reverse-Link+Signaling?types?ofbindings
4.Other?values?are?reserved.
But present scheme can not be delivered to eBS with this ability information, therefore, can't avoid not supporting because of AGW the problem of the repeatedly interacting message that causes.
Summary of the invention
Consider the problems referred to above and make the present invention, for this reason, main purpose of the present invention is to provide a kind of binding of access gateway to set up scheme, to solve in the correlation technique problem of not supporting the repeatedly interacting message that causes because of AGW binding ability.
According to embodiments of the invention, provide a kind of binding of access gateway method for building up.
This method comprises: session reference network controller obtains the ability of the proxy-mobile IP binding that IAD supports; When session reference network controller obtained session information, session reference network controller sent to evolved base station with the ability of the proxy-mobile IP of the being supported binding of IAD in evolved base station; Evolved base station is preserved the ability of the proxy-mobile IP of the being supported binding of IAD, and the ability of the proxy-mobile IP binding of supporting according to the ability of evolved base station itself and the IAD that obtains sends the proxy-mobile IP login request message to IAD and binds so that IAD is set up accordingly.
Wherein, session reference network controller is participating in when accessing terminal the authentication of carrying out, and obtains the ability of the proxy-mobile IP binding that IAD supports.
And evolved base station is passed through to send Information Request to session reference network controller, and obtains the binding ability of the proxy-mobile IP of being supported of IAD from the session information response message that session reference network controller returns.
In addition, the basic proxy-mobile IP of handling capacity value representation IAD support binding, oppositely only there are any or its combination in the binding of link proxy-mobile IP, the signaling binding to expand as bindtype.
Particularly, the mode of the ability of the proxy-mobile IP of the being supported binding of handling capacity value representation IAD is specially: only support basic proxy-mobile IP binding by 0 expression IAD, represent the basic proxy-mobile IP binding of IAD support and/or the binding of link proxy-mobile IP is oppositely only arranged by 1, by basic proxy-mobile IP binding of 2 expression IAD supports or signaling binding, by the basic proxy-mobile IP binding of 3 expression IAD supports and/or binding of reverse link proxy-mobile IP and/or signaling binding, and with 4 as reserved field.
At this moment, when evolved base station is set up binding, further comprise one of following:
If evolved base station is set up binding of basic proxy-mobile IP or single basic proxy-mobile IP binding, and the ability value that evolved base station is obtained is 0,1,2 or 3, and then the proxy-mobile IP login request message is not carried the bindtype expansion;
If evolved base station is set up the binding of link proxy-mobile IP is only arranged oppositely, and the ability value that obtains is 1 or 3, then carries following bindtype expansion in the proxy-mobile IP login request message: RL Only Binding Type Extension;
If evolved base station is set up the proxy-mobile IP binding of signaling binding, and the ability value that obtains is 2 or 3, then carries following bindtype expansion in the proxy-mobile IP login request message: Signaling Only Binding Type Extension;
If evolved base station is set up the binding of a plurality of proxy-mobile IP, and the ability value that obtains is 2 or 3, then carries following bindtype expansion in the proxy-mobile IP login request message: RL+Primary Binding Type Extension.
According to another embodiment of the present invention, provide a kind of binding of access gateway to set up system.
This system comprises: session reference network controller, be used to obtain the ability of the proxy-mobile IP binding that IAD supports, and when session reference network controller obtained session information, session reference network controller sent to evolved base station with the ability of the proxy-mobile IP of the being supported binding of IAD in evolved base station; Evolved base station, be used to preserve the ability of the proxy-mobile IP of the being supported binding of IAD, and the ability of the proxy-mobile IP binding of supporting according to the ability of evolved base station itself and the IAD that obtains sends the proxy-mobile IP login request message to IAD and binds so that IAD is set up accordingly.
Wherein, session reference network controller is participating in when accessing terminal the authentication of carrying out, and obtains the ability of the proxy-mobile IP binding that IAD supports.
In addition, evolved base station can be passed through to send Information Request to session reference network controller, and obtains the binding ability of the proxy-mobile IP of being supported of IAD from the session information response message that session reference network controller returns.
In addition, but the binding of the basic proxy-mobile IP of session reference network controller handling capacity value representation IAD support, oppositely only have any or its combination in the binding of link proxy-mobile IP, the signaling binding to expand as bindtype.
By technique scheme of the present invention, can pass through to transmit the PMIP tenability of AGW, thereby realize unnecessary signaling interaction has been avoided in the optimization of setting up flow process of PMIP binding between eBS and the AGW in the UMB network at Access Network.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is according to the network configuration block diagram of supporting the Access Network of UMB technology in the correlation technique;
Fig. 2 is the flow chart according to the binding of access gateway method for building up of the inventive method embodiment;
Fig. 3 is the signaling process figure according to the processing example 1 of the binding of access gateway method for building up of the inventive method embodiment;
Fig. 4 is the signaling process figure according to the processing example 2 of the binding of access gateway method for building up of the inventive method embodiment; And
Fig. 5 is the flow chart that the binding of access gateway of system according to the invention embodiment is set up system.
Embodiment
Method embodiment
In the present embodiment, provide a kind of binding of access gateway method for building up.
As shown in Figure 2, the binding of access gateway method for building up according to the embodiment of the invention comprises: step S202, SRNC obtain the ability of the PMIP binding that AGW supports; Step S204, when SRNC obtained session information, SRNC sent to eBS with the ability of the PMIP that the is supported binding of AGW at eBS; Step S206, eBS preserve the ability of the PMIP that the is supported binding of AGW, and the ability of the PMIP binding of supporting according to the ability of eBS itself and the AGW that obtains sends the proxy-mobile IP login request message to AGW and binds so that AGW is set up accordingly.
Wherein, SRNC is participating in when accessing terminal the authentication of carrying out, and obtains the ability of the PMIP binding that AGW supports.
And eBS passes through to send Information Request to SRNC, and obtains the binding ability of the proxy-mobile IP of being supported of AGW from the session information response message that SRNC returns.
In addition, handling capacity value representation AGW supports basic PMIP, oppositely only has any or its combination in link PMIP, the signaling binding to expand as bindtype.
Particularly, the mode of the ability of the PMIP that the is supported binding of handling capacity value representation AGW is specially: only support basic PMIP by 0 expression AGW, support basic PMIP and/or link PMIP is oppositely only arranged by 1 expression AGW, support basic PMIP or signaling binding by 2 expression AGW, support basic PMIP and/or reverse link PMIP and/or signaling binding by 3 expression AGW, and with 4 as reserved field.
At this moment, when eBS sets up binding, further comprise one of following:
If eBS sets up basic PMIP or single basic PMIP, and the ability value that eBS obtains is 0,1,2 or 3, and then the proxy-mobile IP login request message is not carried the bindtype expansion;
If eBS sets up reverse only PMIP, and the ability value that obtains is 1 or 3, then carries following bindtype expansion in the proxy-mobile IP login request message: RL OnlyBinding Type Extension;
If eBS sets up the only PMIP of signaling, and the ability value that obtains is 2 or 3, then carries following bindtype expansion in the proxy-mobile IP login request message: SignalingOnly Binding Type Extension;
If eBS sets up a plurality of PMIP, and the ability value that obtains is 2 or 3, then carries following bindtype expansion in the proxy-mobile IP login request message: RL+PrimaryBinding Type Extension.
In actual applications, can further be specially following mode:
If the ability value that eBS obtains is 0, then eBS does not carry the bindtype expansion in the proxy-mobile IP login request message;
If the ability value that eBS obtains is 1, and eBS supports oppositely only to have link PMIP, and then eBS carries RL Only Binding Type Extension (only set up link PMIP is oppositely only arranged) or RL Only+PrimaryBinding Type Extension (setting up many PMIP) in the proxy-mobile IP login request message;
If the ability value that eBS obtains is 1, and eBS do not support oppositely only to have link PMIP, and then eBS does not carry the bindtype expansion in the proxy-mobile IP login request message;
If the ability value that eBS obtains is 2, and eBS supports signaling that PMIP is only arranged, and then carries following bindtype expansion in the proxy-mobile IP login request message: RL OnlyBinding Type Extension;
If the ability value that eBS obtains is 2, and eBS do not support signaling that PMIP is only arranged, and then eBS does not carry the bindtype expansion in the proxy-mobile IP login request message;
If the ability value that eBS obtains is 3, and eBS supports oppositely only to have link PMIP, and then eBS carries following bindtype expansion in the proxy-mobile IP login request message: RLOnly Binding Type Extension or RL Only+Primary Binding TypeExtension;
If the ability value that eBS obtains is 3, and eBS supports signaling that PMIP is only arranged, and then eBS carries following bindtype expansion in the proxy-mobile IP login request message: RL OnlyBinding Type Extension;
If the ability value that eBS obtains is 3, and eBS do not support that promptly signaling only has PMIP, do not support oppositely only to have link PMIP yet, and then eBS does not carry the bindtype expansion in the proxy-mobile IP login request message.
That is to say,, need carry out following steps in order to allow eBS get access to AGW PMIP tenability:
Step 1, SRNC obtains the ability that AGW supports the PMIP binding in the authentication process that participates in AT;
Step 2, eBS ask for to SRNC session information the time, SRNC sends to eBS with the PMIP tenability of AGW simultaneously;
Step 3, eBS preserves the ability of AGW, and sends the PMIP rrq message to set up corresponding binding according to ability of oneself and the ability of AGW.
At step 2, the message the Internet service for checking credentials (IAS)-Session Information Response between eBS and SRNC makes it comprise the ability of AGW PMIP in the enhancing prior art.
Prior art, this message are defined as IAS-Session Information Response (session information response), and this message is that SRNC sends to eBS to respond the session information of eBS request, and its structure can be as shown in table 1.
Information unit Implication
IAS Message Type The IAS type of message
AT Identity (SSID) The sign of AT (SSID form)
AT Identity (UATI) The sign of AT (UATI form)
Network Identity (Endpoint ID) Network identity (sending and receive the information node sign)
Cause Cause value
IAS DAP Record The DAP record is successfully incident then to comprise this information unit if cause value shows.It has comprised the information of current DAP and the recorded information of AGW
SRNC Record The SRNC record
Session State Information Record Session state information
Network Session Record BlueDrama information if cause value shows is successfully incident then to comprise this information unit, and it comprises BlueDrama information, for example service quality (QoS) etc.
Table 1
In order to realize concrete technology of the present invention, the present invention is that to IAS DAP Record information unit enhancing in the session information response message IAS DAP Record (IAS DAP record), this information unit have comprised the information of each AGW of AT connection.For each AGW, if DAP exists, this information unit has also comprised relevant information (ThisIE contains AGW information for each AGW to which the AT connects. For each AGW of DAP, if the DAP exists, this IE also contains informationabout the DAP), the structure of this cell can be as shown in table 2.
4.2.1.18IAS?DAP?Record
Table 2
Wherein, Length (length): this territory has comprised its this information unit length (in the number of byte) (This field contains the number of octets in this IEfollowing this field as a binary number) afterwards;
IAS AGW Record Count: this territory has comprised the number (This field indicates the number IAS AGW Records in this IE) of IAS AGW record;
The coding of IAS AGW Record-n is as shown in table 3:
Figure S2008100969749D00122
Table 3
The coding of IAS AGW record (IAS AGW Record) is as shown in table 4:
Table 4
Wherein, AGW-RAN PMIP Capability (AGW-RAN PMIP ability) is defined as:
0: support basic PMIP binding (AGW supports Primary type of bindingonly AGW)
1:AGW supports basic+reverse link PMIP to bind (AGW supportsPrimary+Reverse-Link types of bindings)
2: support basic+signaling binding (AGW supports Primary+Signalingtypes of bindings AGW)
3:AGW supports basic+reverse link+signaling binding (AGW supportsPrimary+Reverse-Link+Signaling types of bindings)
4: retention (Other values are reserved)
At above-mentioned steps 3, eBS sends PMIPRRQ message and will carry the Binding Type Extension of response when setting up various PMIP binding, and is specific as follows:
(1) if eBS sets up basic or single PMIP binding, and the AGW-RANPMIP ability is above any value, and then the PMIP rrq message does not carry Binding TypeExtension;
(2) if eBS sets up reverse only PMIP binding, and AGW-RAN PMIP ability value is ' 1 ' or ' 3 ', then carries ' RL Only BindingType Extension ' in the PMIP rrq message;
(3) if eBS sets up the only PMIP of signaling binding, and AGW-RAN PMIP ability value is ' 2 ', perhaps ' 3 ', then carry ' Signaling OnlyBinding Type Extension ' in the PMIP rrq message;
(4) if eBS wants to set up a plurality of PMIP binding, and AGW-RAN PMIP ability value is ' 2 ', perhaps ' 3 ', then carry ' RL+PrimaryBinding Type Extension ' in the PMIP rrq message.
Below in conjunction with instantiation the present invention is described.
The foundation of example 1: initial p MIP binding
As shown in Figure 3, the processing procedure in this example is as follows:
(1) authentication and the licensing process that run succeeded of AT, it is that AT selects a unique random key to be called PMN-AN-RK with other parameters .AGW that AGW receives the AAA-session identification from ownership AAA (HomeAAA-HAAA), and derive PMN-AN-RK1.AGW thus with PMN-AN-RK1, AAA-session identification and other relevant parameters send to SRNC.AGW supports PMIP binding ability also to send to SRNC simultaneously it;
(1 ') SRNC has obtained AGW and has supported PMIP binding ability and other parameters;
(2) eBS1 send the IAS Information Request to SRNC to obtain related session information;
(3) receive Information Request, SRNC responds with the IAS-session information response message, this message comprises the PIMP binding ability that AGW IP address, LinkID, user's name, AAA-session id, PMN-AN-RK1 and AGW are supported, that is AGW-RAN-PMIP-Binding-Capability information;
(4) eBS1 is to AT distribute links sign (LinkID), and the chain line has represented that ZT creates is used for IP interface with the IP layer conversation;
(5) ZT sends the data attachment point request of moving (DAPMove Request) message and gives eBS1;
(6) eBS1 sends the PMIP rrq message to AGW, and this message comprises that NAI and eBS1IP address are to set up a PMIP tunnel just.The AGW-RAN-PMIP-Binding-Capability that while eBS1 also receives according to step 3 (the PMIP binding ability that expression AGW supports) determines whether to carry ' Binding Type Extension ' territory, and corresponding expanding value, for example, if eBS1 and AGW support that also binding is oppositely only arranged, then carry RL+Primary binding type;
(7) AGW sends the foundation in the corresponding PMIP of PMIP-Registration Reply message authentication tunnel;
(8) eBS1 sends DAP and distributes to AT;
(9) eBS1 transmission IPT-notification message (IPT-Notification) notifies it to be called DAP to SRNC;
(10) SRNC feedback IPT-notification acknowledgement (IPT-Notification ACK);
(11) AT sets up to its upper strata IP layer displaying link, and upper strata IP layer is current IP interface and its current IP interface relatively, if different words are then touched IP address assignment;
(12) finish IP address assignment;
(13) can between AT and AGW, transmit the IP packet.
Example 2:AT set of routes increases situation
As shown in Figure 4, in this example, comprise following processing procedure:
(a) AT is current is in connection status with eBS1, and SRNC is in set of routes;
(b) AT sends to eBS2 to increase eBS2 in set of routes by tunnel style with RouteOpenRequest message;
(c) eBS2 sends IAS-Session Information Request message to SRNC;
(d) SRNC responds eBS2 with IAS-Session Information Response message, and this message comprises the PMIP binding ability that AGW supports;
(e) eBS2 sends RouteOpenAccept message to AT;
(f) AT and eBS1 are in connection status, and eBS2 and SRNC are also in set of routes;
(g) AT sends RouteMap message to each member in the set of routes;
(h *) eBS2 is according to the PMIP ability of AGW, eBS send PMIP-Registration Request message to AGW to set up extra data tunnel, RLOnly Type Extension is included in this message;
(i *) AGW sends PMIP-Registration Reply message to eBS2;
(j *) receive that the RouteMap after the renewal, SRNC send IAS-UATI Update message to eBS2;
(k *) eBS2 sends IAS-UATI Update Ack message to SRNC;
(l) eBS1 transmission IPT-Notification message is forward direction serving BS and data attachment point to eBS2 with clear and definite its;
(m) eBS2 sends IPT-Notification Ack message to eBS1.
System embodiment
In the present embodiment, provide a kind of AGW binding to set up system.
As shown in Figure 5, setting up system according to the AGW binding of present embodiment comprises: SRNC502, be used to obtain the ability of the PMIP that AGW supports, and at eBS 504 when SRNC obtains session information, SRNC 502 sends to eBS 504 with the ability of the PMIP that the is supported binding of AGW; EBS 504, are used to preserve the ability of the PMIP that the is supported binding of AGW, and the ability of the PMIP binding of supporting according to the ability of eBS 504 itself and the AGW that obtains sends the proxy-mobile IP login request message AGW is set up corresponding binding to AGW.
Wherein, SRNC 502 is participating in when accessing terminal the authentication of carrying out, and obtains the ability of the PMIP binding that AGW supports.
In addition, eBS 504 can pass through to send Information Request to SRNC 502, and obtains the binding ability of the proxy-mobile IP of being supported of AGW from the session information response message that SRNC 502 returns.
In addition, but SRNC 502 handling capacity value representation AGW support basic PMIP, oppositely any or its combination in link PMIP, the signaling binding only arranged as the bindtype expansion, it specifically represents to describe before the mode, no longer repeats here.
In sum,, can pass through to transmit the PMIP tenability of AGW, thereby realize unnecessary signaling interaction has been avoided in the optimization of setting up flow process of PMIP binding between eBS and the AGW in the UMB network at Access Network by means of technical scheme of the present invention.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. a binding of access gateway method for building up is characterized in that, described method comprises:
Session reference network controller obtains the ability of the proxy-mobile IP binding that IAD supports;
When described session reference network controller obtained session information, described session reference network controller sent to described evolved base station with the ability of the described proxy-mobile IP binding of being supported of described IAD in evolved base station;
Evolved base station is preserved the ability of the described proxy-mobile IP of the being supported binding of described IAD, and the ability of the proxy-mobile IP binding of supporting according to the ability of described evolved base station itself and the described IAD that obtains sends the proxy-mobile IP login request message to described IAD and binds so that described IAD is set up accordingly.
2. method according to claim 1 is characterized in that, described session reference network controller is participating in when accessing terminal the authentication of carrying out, and obtains the ability of the proxy-mobile IP binding that described IAD supports.
3. method according to claim 1, it is characterized in that, described evolved base station is passed through to send Information Request to described session reference network controller, and obtains the binding ability of the described proxy-mobile IP of being supported of described IAD from the session information response message that described session reference network controller returns.
4. method according to claim 1 is characterized in that, the binding of the basic proxy-mobile IP of the described IAD support of handling capacity value representation, oppositely only has any or its combination in the binding of link proxy-mobile IP, the signaling binding to expand as bindtype.
5. method according to claim 4, it is characterized in that, the mode of representing the ability that the described proxy-mobile IP of being supported of described IAD is bound by described ability value is specially: only support described basic proxy-mobile IP binding by the described IAD of 0 expression, support described basic proxy-mobile IP binding and/or described the binding of link proxy-mobile IP only arranged oppositely by the described IAD of 1 expression, support described basic proxy-mobile IP binding or the binding of described signaling by the described IAD of 2 expressions, support described basic proxy-mobile IP binding by the described IAD of 3 expressions, and/or described reverse link proxy-mobile IP binding, and/or the binding of described signaling, and with 4 as reserved field.
6. method according to claim 5 is characterized in that, when described evolved base station is set up described binding, further comprises one of following:
If described evolved base station is set up described basic proxy-mobile IP binding or single basic proxy-mobile IP binding, and the described ability value that described evolved base station is obtained is 0,1,2 or 3, and then described proxy-mobile IP login request message is not carried the bindtype expansion;
If described evolved base station is set up the described link proxy-mobile IP binding that oppositely only has, and the described ability value that obtains is 1 or 3, carries following bindtype expansion in the then described proxy-mobile IP login request message: RL Only Binding Type Extension;
If described evolved base station is set up the proxy-mobile IP binding of described signaling binding, and the described ability value that obtains is 2 or 3, carries following bindtype expansion in the then described proxy-mobile IP login request message: Signaling Only Binding Type Extension;
If evolved base station is set up the binding of a plurality of proxy-mobile IP, and the described ability value that obtains is 2 or 3, carries following bindtype expansion in the then described proxy-mobile IP login request message: RL+Primary Binding Type Extension.
7. a binding of access gateway is set up system, it is characterized in that, described system comprises:
Session reference network controller, be used to obtain the ability of the proxy-mobile IP binding that IAD supports, and when described session reference network controller obtained session information, described session reference network controller sent to described evolved base station with the ability of the described proxy-mobile IP binding of being supported of described IAD in evolved base station;
Described evolved base station, be used to preserve the ability of the described proxy-mobile IP binding of being supported of described IAD, and the ability of the proxy-mobile IP binding of supporting according to the ability of described evolved base station itself and the described IAD that obtains sends the proxy-mobile IP login request message to described IAD and binds so that described IAD is set up accordingly.
8. system according to claim 7 is characterized in that, described session reference network controller is participating in when accessing terminal the authentication of carrying out, and obtains the ability of the proxy-mobile IP binding that described IAD supports.
9. system according to claim 7, it is characterized in that, described evolved base station is passed through to send Information Request to described session reference network controller, and obtains the binding ability of the described proxy-mobile IP of being supported of described IAD from the session information response message that described session reference network controller returns.
10. system according to claim 7, it is characterized in that the binding of the basic proxy-mobile IP of the described IAD support of described session reference network controller handling capacity value representation, oppositely only having any or its combination in the binding of link proxy-mobile IP, the signaling binding to expand as bindtype.
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