CN101459920A - Monitor sign acquiring method - Google Patents
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- CN101459920A CN101459920A CNA2008100946291A CN200810094629A CN101459920A CN 101459920 A CN101459920 A CN 101459920A CN A2008100946291 A CNA2008100946291 A CN A2008100946291A CN 200810094629 A CN200810094629 A CN 200810094629A CN 101459920 A CN101459920 A CN 101459920A
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Abstract
The invention provides a listening-in identifiers acquiring method for monitoring element location to acquire listening-in identifiers. In the listening-in identifiers acquiring method, an authentication device gateway assigns an access service network gateway as an anchor/ access service network gateway, and the authentication device gateway sends the listen identifiers to the anchor/ access service network gateway during the process of establishing/ modifying a business flow after an authorized access is passed. Through utilizing the listening-in identifiers acquiring method of the invention, transferring/ acquiring of the listening-in identifiers is realized.
Description
Technical field
The present invention relates to micro-wave access to global intercommunication (WorldwideInteroperability for Microwave Access the abbreviates WiMAX as) system in the communications field, particularly, relate to monitor sign acquiring method, be used to monitor network element and obtain monitor sign.
Background technology
WiMAX (Worldwide Interoperability for Microwave Access, micro-wave access global inter communication) be based on the wireless access wide band technology of IEEE 802.16 standards, it can effectively utilize the limited wireless frequency spectrum resource bigger bandwidth of air-interface (data transmission capabilities of the highest 70Mbps) is provided.
Fig. 1 shows the network reference model of WiMAX, as shown in Figure 1, comprises Network Access Provider (Network Access Provider abbreviates NAP as), home network services provider (H-NSP), visited network service provider (V-NSP).
Wherein, Network Access Provider (NAP) is the business units that WiMAX wireless access framework is provided for one or more WiMAX Internet Service Providers (Network Service Provider abbreviates NSP as).Comprise one or more access service network (Access Service Network among the NAP, abbreviate ASN as), WiMAX NWG standard code, ASN has two kinds of frameworks: MODEL C (Profile C) ASN is made up of base station (Base Station abbreviates BS as) and two stand-alone network elements of Access Service Network Gateway (AGW); Model B (Profile B) ASN only comprises comprehensive base station (IBS), the BS+AGW of its functional equivalent in MODEL C.
Home network services provider (Home-NSP abbreviates H-NSP as) is the local network service provider.H-NSP is an operator or commercial organization, and it has the user-dependent Service Level Agreement with WiMAX, the session of authentication and authorized user (the interior and roaming scence of net), the charging of customer service (chargeing and bill).Ownership authentication, mandate and accounting server (the Home AuthenticationAuthorization and Accounting that mainly comprises the storing user subscription business in the H-NSP network, abbreviate HAAA as) and home agent (HomeAgent abbreviates HA as) network element.
Visited network service provider (Visit-NSP abbreviates V-NSP as) defines from roamer's angle, and the roamer uses the wireless coverage visit WiMAX service of V-NSP.V-NSP can have roaming agreement with user's H-NSP, and V-NSP is provided to the professional route of HAAA of H-NSP.Based on the roaming agreement between user WiMAX service request and H-NSP and the V-NSP, V-NSP can provide some or all of WiMAX business to the roamer, perhaps provides the professional route of data/control to H-NSP.Mainly comprising in the V-NSP network provides visit authentication, mandate and accounting server (VisitAuthentication Authorization and Accounting abbreviates VAAA as) and home agent (HA) network element of acting on behalf of forwarding capability.
Say from another point of view, as shown in Figure 1, the WiMAX network is by subscriber station/travelling carriage (Subscriber Station/Mobile Station, abbreviate SS/MS as), access business network (Access Service Network, abbreviate ASN as) be connected business network (ConnectService Network, abbreviating CSN as) three logic entities form, wherein, each logic entity has all been represented one group of functional entity, and each functional entity can be realized in single physical equipment, also can be distributed in a plurality of physical equipments and realize.
Wherein, the functional entity among the BS related to the present invention comprises service flow management (Service Flow Management) functional entity, and it is responsible for creating, admits, activates, revises and the deletion Business Stream.
Wherein, ASN is mainly WiMAX user corresponding wireless access and control is provided, and ASN is made up of base station (Base Station abbreviates BS as) and Access Service Network Gateway (ASN-Gate-way abbreviates AGW as).
According to the function difference that realizes, AGW can be decomposed into a plurality of functional entitys again, and wherein, functional entity related to the present invention comprises: authentication device (Authenticator), service flow authorization (Service Flow Authorization abbreviates SFA as) functional entity.
Different according to its residing position when user access network takes place with switching, AGW is divided into different role again: authentication Access Service Network Gateway (Authenticator AGW), grappling Access Service Network Gateway (Anchor AGW), purpose Access Service Network Gateway (Target AGW), service Access Service Network Gateway (Serving AGW), relaying Access Service Network Gateway (RelayAGW).Wherein, the AGW that provides access authentication and charging to gather function for terminal is referred to as Authenticator AGW; The AGW that sets up the tunnel with CSN is referred to as AnchorAGW; Be called ServingAGW with the AGW that provides the BS of service to link to each other to the user; The purpose AGW that switches is called Target AGW, and after handover success was finished, TargetAGW changed Serving AGW into.During switching, the AGW that is used between relaying Serving BS and the TargetBS switching message is called Relay AGW, will switch message and stop relaying, and the Relay AGW that is transmitted to Target BS is called Last Relay AGW.In AGW, functional entity related to the present invention, authentication device (Authenticator) is responsible for carrying out authentification of user; Service flow authorization functional entity (SFA) when being used for the user and inserting, is finished the service flow authorization function.
Wherein, in the network insertion stage, when user QoS Profile by from ownership AAA when downloading to the SFA, SFA is responsible for assessing any service request according to user QoS Profile.To a given ASN/NAP, each MS has a grappling SFA (AnchorSFA).Anchor SFA does not change during the MS authen session.Be called service SFA (Serving SFA) with the SFA of SFM direct communication.Serving SFA is arranged in Serving AGW.
In the existing protocol definition, DHCP Proxy, DHCP Relay, FA and AnchorDP are that unification is provided with; And Authenticator and Anchor DP are the unification settings, and still, the two also can separate.
CSN has comprised authentication, mandate, billing function (Authentication Authorization and Accounting abbreviates AAA as) and home agent (Home Agent abbreviates HA as) for MS provides IP Connection Service.
For switching, WiMAX has defined two types switching: the switching of the switching of ASN grappling and CSN grappling.Wherein, the switching that Anchor AGW does not change is referred to as the switching of ASN grappling, otherwise the switching that Anchor AGW changes is referred to as the switching of CSN grappling.Usually the switching of ASN grappling can take place earlier in the user, then, if Anchor AGW needs to change, initiates the switching of CSN grappling again.
In the present communications field, the Lawful Interception function has obtained using widely, comprise 3GPP, core network devices such as 3GPP2 all can provide the interface with Lawful Interception Center, Lawful Interception Center is according to user's global mobile user identification (InternationalMobile Subscriber Identity, abbreviate IMSI as) or network access Identifier (NetworkAccess Identifier, abbreviate NAI as) deploy to ensure effective monitoring and control of illegal activities in the network element device in core network, controlled network element is sent to the alert center of using with the traffic activity and the non-traffic activity of controlled object by the monitor for police interface, warn incident and Content of Communication, and the information of collecting is handled with the controlled object of center collecting and reporting.
WiMAX network work group (Network Work Group is called for short NWG) is the working group that is devoted to study the WiMAX system definition network architecture and reference model in the WiMAX tissue.At present, this working group has determined the Lawful Interception framework in the WiMAX network, as shown in Figure 2.Lawful Interception framework according to the WiMAX network, network element (the ASN of WiMAX network, IBS, HA, AAA) all can provide interface, each network element need be responsible for monitoring and collecting controlled user profile on this network element with monitor for police server (Lawful Interception Server abbreviates LIS as), and this information reported LIS, by the unified interface that law enforcement agency (LEA) is provided of LIS.And because the hiding demand that in the WiMAX network real user is identified, the NWG group has been determined use user's fee sign (Chargeable User Identity abbreviates CUI as) scheme as the monitor sign in the WiMAX network.
In existing protocol, to be authentication carry functional entity Authenticator to ASN by the back by HAAA to user's fee sign (CUI) in authorization messages, and by the Authenticator storage, CUI no longer is passed to other functional entity of ASN in follow-up flow process.When ASN is responsible for monitoring and collects on this network element controlled user profile as the monitoring network element,, finish the monitoring and the collection of controlled user profile jointly because the diversity of user profile needs the difference in functionality entity of ASN to collect different information.But as mentioned above, CUI as monitor sign has only Authenticator AGW just to know, when Authenticator is distributed in different AGW with other functional entitys when providing business for the specific user, only be stored on the Authenticator AGW according to existing procedure CUI, and other functional entitys all can't guarantee to get access to CUI, therefore the monitoring and the collection of controlled user profile can not be finished, controlled user's information can't be reported.
In sum, need a kind of monitoring network element of ASN that can make to obtain monitor sign, with the scheme of the information that correctly reports controlled user.
Summary of the invention
Consider a kind of monitoring network element that can make ASN of the needs that exist in the prior art can obtain monitor sign technology problem and the present invention is proposed, for this reason, the present invention aims to provide a kind of monitor sign acquiring method, is used to monitor network element and obtains monitor sign.
According to an aspect of the present invention, provide a kind of monitor sign acquiring method.
Monitor sign acquiring method according to the embodiment of the invention comprises following processing: it is grappling/service Access Service Network Gateway that the authentication device gateway is specified the Access Service Network Gateway outside himself; Authentication insert pass through after, the authentication device gateway sends to monitor sign grappling/service Access Service Network Gateway in Business Stream establishment/modification process.
Preferably, the operation that monitor sign is sent to grappling/service Access Service Network Gateway in the authentication device gateway in Business Stream establishment/modification process specifically comprises: carry monitor sign in the Business Stream establishment/modify request messages of grappling service flow authorization entity in Business Stream establishment/modification process of authentication device gateway; The service business stream authorized entity in grappling/service access service network Central Shanxi Plain is resolved Business Stream establishment/modify request messages, obtains monitor sign.
Preferably, the operation that monitor sign is sent to grappling/service Access Service Network Gateway in the authentication device gateway in Business Stream establishment/modification process is specially: by one or more Tandem Gateways monitor sign is sent to grappling/service Access Service Network Gateway in the authentication device gateway in Business Stream establishment/modification process.
Wherein, above-mentioned grappling/service Access Service Network Gateway is used for and is connected business network and passage is set up in the base station.
Preferably, said method further comprises: grappling/service Access Service Network Gateway is initiated the request of establishment/modification data channel to the base station.
Wherein, above-mentioned monitor sign comprises the user's fee sign.
According to an aspect of the present invention, provide a kind of monitor sign acquiring method.
Monitor sign acquiring method according to the embodiment of the invention comprises following processing: set up in the process of data channel at grappling Access Service Network Gateway and target Access Service Network Gateway, the grappling Access Service Network Gateway sends data channel registration response to the target Access Service Network Gateway, and carries monitor sign therein; Monitor sign is wherein obtained in the response of target Access Service Network Gateway resolution data channel registration.
Preferably, the operation of setting up data channel of grappling Access Service Network Gateway and target Access Service Network Gateway specifically comprises: the grappling Access Service Network Gateway is initiated the handoff procedure of access service network grappling to the target Access Service Network Gateway; The target Access Service Network Gateway is initiated the data channel register requirement to the grappling Access Service Network Gateway; The grappling Access Service Network Gateway sends data channel registration response to the target Access Service Network Gateway; The target Access Service Network Gateway sends the data channel registration reply to the grappling Access Service Network Gateway.
Wherein, monitor sign comprises the user's fee sign.
Preferably, said method further comprises: the grappling Access Service Network Gateway is connected the handoff procedure of business network grappling with the target Access Service Network Gateway.
By above-mentioned at least one technical scheme of the present invention, by in Business Stream establishment/modification process or switching flow, sending monitor sign, solved the problem that the monitoring network element of ASN can not obtain monitor sign in the prior art, realized obtaining of monitor sign.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the WiMAX network architecture schematic diagram according to correlation technique;
Fig. 2 is the reference model schematic diagram according to the WiMAX network Lawful Interception framework of correlation technique;
Fig. 3 is the flow chart according to the monitor sign acquiring method of the embodiment of the invention one;
Fig. 4 is the detailed process flow chart of method shown in Figure 3;
Fig. 5 is the flow chart according to the monitor sign acquiring method of the embodiment of the invention two;
Fig. 6 is the flow chart according to the monitor sign acquiring method of the embodiment of the invention three.
Embodiment
As mentioned above, monitor sign is that the user is when opening an account or according to the user ID of operator's rule by the generation of ownership aaa server.When user's initial network entry, after authentification of user passes through, ownership AAA carries the functional entity Authenticator that this sign passes to ASN in authorization messages, and store by Authenticator, afterwards, in the inside of ASN, no longer carry out the transmission of monitor sign, other control points just can't obtain monitor sign like this, also just can not correctly report controlled user profile.
Given this, the embodiment of the invention aims to provide a kind of monitor sign acquiring method, carry out effective transmission of monitor sign in its each functional entity by ASN network element in the WiMAX system, the control point that can solve in the ASN can not obtain the problem of monitor sign, thereby reaches the purpose that each control point can both correctly report controlled user profile.
The monitor sign of hereinafter mentioning is that the user is when opening an account or according to the user ID of operator's rule by the generation of ownership aaa server, in the present invention, monitor sign is preferably user's fee sign (CUI), the monitor sign transmitter is meant the functional entity of the ASN that has monitor sign, the monitor sign receiver is meant not have monitor sign but need monitor sign to discern the user, so that finish the functional entity to the ASN of the function of user monitoring.
Based on above content, below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Method embodiment one
According to the embodiment of the invention, a kind of monitor sign acquiring method at first is provided, be used to monitor network element and obtain monitor sign, this method is applied to authenticate the processing that inserts after passing through.
As mentioned above, after authentification of user passes through, ownership AAA carries the functional entity Authenticator that this monitor sign passes to ASN in authorization messages, and store by Authenticator, because Anchor SFA and Authenticator unification, all be arranged in Authenticator AGW, so Anchor SFA also obtained monitor sign, Authenticator AGW can be used as the monitor sign transmitter like this.After initial access network is finished, network is user's establishment/modification Business Stream, Anchor SFA among the Authenticator AGW passes to the CUI sign at the ServingSFA that is arranged in Anchor AGW at this moment, and at this moment, Anchor AGW is again Serving AGW simultaneously.
Fig. 3 is the flow chart according to the monitor sign acquiring method of the embodiment of the invention one.As shown in Figure 3, comprise following processing:
Step S302, it is grappling/service AGW (Anchor/Serving AGW) that authentication device gateway (Authenticator AGW) is specified certain AGW according to strategy; Other gateways outside the suitable authentication device gateway of this grappling/service Access Service Network Gateway are used for and are connected business network (CSN) and base station (BS) sets up passage;
Step S304, authentication insert pass through after, Authenticator AGW sends to monitor sign Anchor/Serving AGW in Business Stream establishment/modification process.
Anchor/Serving AGW is after receiving the carrier message that carries monitor sign, resolve this message, and obtain monitor sign, and can differentiate and carry out whether professional user is monitored user according to monitor sign, if, then collect controlled user's information, and report monitoring service device LIS, otherwise, normal flow continued.
Fig. 4 is the detailed process flow chart that the processing procedure of said method is shown.After access authentication of user and mandate were passed through, the AnchorSFA among the authentication AGW (Authenticator AGW) carried CUI information to the Serving SFA among the Anchor AGW in Business Stream establishment/modification request, wherein may a plurality of Tandem Gateways of approach.As shown in Figure 4, specifically comprise following processing:
Step 402: user's initialization access network process is finished, and finishes authentification of user, mandate.
Anchor SFA application strategy among the step 404:Authenticator AGW is finished the strategic decision-making process.
Anchor SFA among the step 406:Authenticator AGW carries monitor sign (CUI) to the request that selected AnchorAGW (that is, Anchor/Serving AGW mentioned above) initiates Business Stream establishment/modification in request.
Step 408: relaying AGW judges BS not in the compass of competency of this AGW according to the parameter of carrying in the handoff request message (purpose BS sign), needs to continue this request message is transmitted to AnchorAGW, wherein may transmit through a plurality of relaying AGW.
After step 410:Anchor AGW receives the request of Business Stream establishment/modification, resolve and preserve monitor sign information (CUI).
Serving SFA among the step 412:Anchor AGW initiates the request of establishment/modification data channel to BS.
By this embodiment, realized that user's initialization inserts after, when creating Business Stream, finish the monitor sign transmission, make Anchor AGW can obtain monitor sign, thereby can correctly report controlled user profile.
Further, if Authenticator AGW according to strategic decision-making by oneself bearing the anchor point role, Authenticator AGW is exactly the anchor point (promptly bearing Anchor AGW role) of user data channel so, then the transmission of monitor sign is exactly the transmission between the network element internal functional entity, does not need to initiate Business Stream establishment/modification process.
Method embodiment two
According to the embodiment of the invention, a kind of monitor sign acquiring method is provided, the monitor sign that is used for ASN grappling handoff procedure obtains.
The switching flow of ASN grappling, grappling is not switched, and service point switches, that is and, service point switches to target AGW (Target AGW), and Target AGW changed Serving AGW into after switching was finished.Based on this, in ASN grappling handover execution stage, ServingAGW switches to Target AGW, Target AGW and Anchor AGW set up data channel, Anchor AGW can transmit CUI and give Target AGW, finish the transmission of monitor sign, so Target AGW has also obtained monitor sign when being transformed into Serving AGW from Anchor AGW to Target AGW.
In the method for present embodiment, set up in the process of data channel at Anchor AGW and Target AGW, Anchor AGW sends data channel registration response to Target AGW, and carries monitor sign therein; Afterwards, monitor sign is wherein obtained in the response of Target AGW resolution data channel registration.
Particularly, can understand relevant treatment among this embodiment with reference to Fig. 5.As shown in Figure 5, comprise following processing:
The initiation process is switched in step 502:ASN grappling, wherein comprises repeatedly Signalling exchange.
Step 504:Target AGW initiates the data channel login request message to Anchor AGW, and data channel is set up in request.
Step 506:Anchor AGW is to Target AGW response data channel registration response message, and the present invention requires wherein to comprise monitor sign (CUI).
Step 508:Target AGW resolution response message is obtained the Lawful Interception sign.
Step 510:Target AGW sends data channel registration reply message to Target AGW, finishes the data channel register flow path.
As mentioned above,, realized the monitor sign transmittance process in the switching flow of ASN grappling, made Target AGW can obtain monitor sign, thereby can correctly report controlled user profile by present embodiment.
On the basis of above-mentioned processing, can further carry out CSN grappling handoff procedure.When generation was switched in the CSN grappling, anchor point switched to current ServingAGW from current Anchor AGW.The CSN grappling is switched before generation ASN grappling earlier and is switched, and after the switching of ASN anchorage was finished, Target AGW was converted to current Serving AGW.As described in method embodiment two, current Serving AGW (being Target AGW) has obtained CUI by the data channel constructive process in the ASN grappling switching flow.Therefore CSN grappling switching also can be so that new anchor point be known CUI.Can understand this process better by the following embodiment that provides.
Method embodiment three
As mentioned above, switch for the CSN grappling, current grappling switches to current service point, that is, Anchor AGW switches to Serving AGW, final Serving AGW be service point be again anchor point.According to the prior art definition, before the CSN grappling is switched, the ASN grappling has taken place switched, that is, Serving AGW has obtained CUI in ASN grappling switching flow.
Particularly, can understand relevant treatment among this embodiment with reference to Fig. 6.As shown in Figure 6, comprise following processing:
The initiation process is switched in step 602:ASN grappling, wherein comprises repeatedly Signalling exchange.
Step 604:Target AGW initiates the data channel login request message to Anchor AGW, and data channel is set up in request.
Step 606:Anchor AGW is to Target AGW response data channel registration response message, and the present invention requires wherein to comprise monitor sign (CUI).
Step 608:Target AGW resolution response message is obtained the Lawful Interception sign.
Step 610:Target AGW sends data channel registration reply message to Anchor AGW, finishes the data channel register flow path.
Step 612: when the user initiated the CSN switching, Target AGW initiated the CSN handover trigger, and anchor point is switched in request.
After step 614:Anchor AGW receives and triggers message, send CSN grappling handoff request to Target AGW.
Step 616:Target AGW finishes processes such as mobile IP registration that CSN switches and the foundation of CSN passage.
Step 618:Target AGW sends CSN grappling handoff response to Anchor AGW, finishes the switching of anchor point from Anchor AGW to Target AGW.
By the above embodiment that provides, the present invention has realized that the monitor sign in the CSN grappling handoff procedure obtains.
By above-mentioned at least one technical scheme of the present invention, by making authentication device maybe can monitor sign be sent to the control point that needs monitor sign from other entities that authentication device obtains monitor sign, overcome the control point that exists in the correlation technique and can't obtain the problem of monitor sign, thereby the monitor sign that makes each control point to use to obtain correctly reports controlled user profile.
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 monitor sign acquiring method is used to monitor network element and obtains monitor sign, it is characterized in that described method comprises:
It is grappling/service Access Service Network Gateway that the authentication device gateway is specified the Access Service Network Gateway outside himself;
Authentication insert pass through after, described authentication device gateway sends to monitor sign described grappling/service Access Service Network Gateway in Business Stream establishment/modification process.
2. method according to claim 1 is characterized in that, the operation that monitor sign is sent to described grappling/service Access Service Network Gateway in the described authentication device gateway in Business Stream establishment/modification process specifically comprises:
Carry described monitor sign in the Business Stream establishment/modify request messages of grappling service flow authorization entity in Business Stream establishment/modification process of described authentication device gateway;
The service business stream authorized entity in described grappling/service access service network Central Shanxi Plain is resolved described Business Stream establishment/modify request messages, obtains described monitor sign.
3. method according to claim 1 is characterized in that, the operation that monitor sign is sent to described grappling/service Access Service Network Gateway in the described authentication device gateway in Business Stream establishment/modification process is specially:
In Business Stream establishment/modification process, described monitor sign is sent to described grappling/service Access Service Network Gateway in the described authentication device gateway by one or more Tandem Gateways.
4. method according to claim 1 is characterized in that, described grappling/service Access Service Network Gateway is used for and is connected business network and passage is set up in the base station.
5. according to each described method in the claim 1 to 4, it is characterized in that, further comprise:
Described grappling/service Access Service Network Gateway is initiated the request of establishment/modification data channel to the base station.
6. according to each described method in the claim 1 to 4, it is characterized in that described monitor sign comprises the user's fee sign.
7. a monitor sign acquiring method is used to monitor network element and obtains monitor sign, it is characterized in that described method comprises:
Set up in the process of data channel at grappling Access Service Network Gateway and target Access Service Network Gateway, described grappling Access Service Network Gateway sends data channel registration response to described target Access Service Network Gateway, and carries monitor sign therein;
Described target Access Service Network Gateway is resolved described data channel registration response, obtains described monitor sign wherein.
8. monitor sign acquiring method according to claim 7 is characterized in that, the operation that described grappling Access Service Network Gateway and described target Access Service Network Gateway are set up data channel specifically comprises:
Described grappling Access Service Network Gateway is initiated the handoff procedure of access service network grappling to described target Access Service Network Gateway;
Described target Access Service Network Gateway is initiated the data channel register requirement to described grappling Access Service Network Gateway;
Described grappling Access Service Network Gateway sends described data channel registration response to described target Access Service Network Gateway;
Described target Access Service Network Gateway sends the data channel registration reply to described grappling Access Service Network Gateway.
9. method according to claim 7 is characterized in that, described monitor sign comprises the user's fee sign.
10. according to each described method in the claim 7 to 9, it is characterized in that, further comprise:
Described grappling Access Service Network Gateway is connected the handoff procedure of business network grappling with described target Access Service Network Gateway.
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Application publication date: 20090617 |