CN101448198A - System and method for acquiring location information of on-line intercepted user in WiMAX - Google Patents
System and method for acquiring location information of on-line intercepted user in WiMAX Download PDFInfo
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- CN101448198A CN101448198A CNA2008100052570A CN200810005257A CN101448198A CN 101448198 A CN101448198 A CN 101448198A CN A2008100052570 A CNA2008100052570 A CN A2008100052570A CN 200810005257 A CN200810005257 A CN 200810005257A CN 101448198 A CN101448198 A CN 101448198A
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Abstract
The invention provides a system for acquiring location information of an on-line intercepted user in a WiMAX network and a method thereof, wherein, the system comprises a lawful interception server, a location agent and a location controller which is positioned at an ASN, and is used for directly triggering location operation on the on-line intercepted user according to preset conditions, acquiring the location information of the on-line intercepted user from the location agent and reporting the location information to the lawful interception server. Therefore, the system and the method help organically integrate location services with lawful interception services, thus LEA is capable of timely and accurately acquiring the location information of the on-line intercepted user without a location client side and a location server.
Description
Technical field
The present invention relates to the WiMAX system, more specifically, relate to the system and method for the online intercepted user positional information in a kind of WiMAX of obtaining network.
Background technology
Fig. 1 is WiMAX network architecture reference model figure.
Micro-wave access to global intercommunication (Worldwide Interoperability for MicrowaveAccess, WiMAX) be based on the wireless access wide band technology of IEEE 802.16 standards, can effectively utilize the limited wireless frequency spectrum resource and bigger bandwidth of air-interface (data transmission capabilities of the highest 70Mbps) is provided.As shown in Figure 1, its network reference model is by SS/MS, access business network (ASN) and be connected three logic entities of business network (CSN) and form, each logic entity has been represented one group of functional entity, and each function can or be distributed in a plurality of physical equipments at single physical and realize.
Home network services provider (H-NSP): local network service provider.H-NSP is an operator or commercial organization, and it has the user-dependent Service Level Agreement with WiMAX, authentication and authorization user's session (the interior and roaming scence of net), the charging of customer service (chargeing and bill).In order to support services of roaming, a H-NSP can have roaming relationships with other NSP.Authentication, mandate and the accounting server (AAA) and home agent (HA) network element that mainly comprise the storing user subscription business in the H-NSP network.
Visited network service provider (V-NSP): visited network service provider.V-NSP 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 AAA 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 authentication, mandate and accounting server (AAA) and home agent (HA) network element of acting on behalf of forwarding capability.
Network Access Provider (NAP): Network Access Provider.Network Access Provider is the business units that WiMAX wireless access framework is provided for one or more WiMAX Internet Service Providers (NSP).Comprise one or more access service network (ASN) among the NAP, WiMAX NWG standard code, ASN has two kinds of frameworks: MODEL C (ProfileC), ASN is made up of base station (BS) 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 Profile C.ASN is mainly WiMAX user corresponding wireless access and control is provided, and ASN is made up of base station (BS) and IAD (ASN-GW).Wherein IAD (ASN-GW) can be divided into different functional entitys according to user's position, state of user and handling process.The functional entity that is mainly concerned with in the present invention comprises Target AGW, Serving AGW and Anchor DP.The current ASN-GW that is serving for the user is called Serving AGW; Purpose ASN-GW is called TargetAGW during switching, and after handover success was finished, Target AGW changed Serving AGW into; The ASN-GW at user's grappling data channel processing capacity place is called Anchor DP.
CSN has comprised authentication, mandate, billing function (AAA) and home agent (HA) for MS provides IP Connection Service.
Fig. 2 is WiMAX network Lawful Interception framework reference model figure.
WiMAX NWG is the working group that is devoted to study the WiMAX system definition network architecture and reference model below WiMAX organizes.As shown in Figure 2, at present, this working group has begun to determine the Lawful Interception framework in the WiMAX network.Lawful Interception framework according to present WiMAX network, the network element of WiMAX network (ASN-GW, HA, AAA) all can provide interface with monitor for police server LIS (Lawful Interception Server), each network element need be responsible for monitoring and collect controlled user profile on this network element, and this information reported LIS, by the unified interface that law enforcement agency (LEA) is provided of LIS.
After law enforcement agency is provided with monitoring to certain user, not only need to obtain user's life event, the more important thing is acquisition user's that need be promptly and accurately detail location information.
Fig. 3 is WiMAX network positions business structure reference model figure.
According to existing protocol, in the WiMAX network, obtain user's detail location information if desired, can realize by positioning service.As shown in Figure 3, existing WiMAX positioning service technology, user's positioning flow at first need trigger the location-server (LS) that is positioned at CSN by outside positioning client terminal (LocationClient), notify the register control (LC) that is positioned at Serving AGW to begin to position business by location-server then, LC cooperates with the location agency who is positioned at BS and MS, finish positioning service, obtain positional information.Based on existing protocol, positioning service is and Lawful Interception two business fully independently, can be provided by other service providers.If law enforcement agency need obtain controlled user position information, can be undertaken by following dual mode.Mode one, the navigation system of using other service providers to provide comprises positioning client terminal, location-server.At first utilize certain mode (for example, file, phone etc.) to notify to be positioned at positioning client terminal other place, that provide by other service providers that intercepted user is positioned professional the triggering; Come the user is located by other service providers then; After finishing, the location obtains information by relevant means (for example, file, phone etc.) more at last.Mode two: LEA disposes a cover navigation system, report positioning client terminal, location-server.At first utilize certain mode (for example, file, phone etc.) to notify positioning client terminal that intercepted user is positioned professional the triggering; The Artificial Control positioning client terminal positions the user then; After finishing, the location obtains information by relevant means (for example, file, phone etc.) more at last.The shortcoming of mode one is to have revealed monitored user's information to the third party; The shortcoming of mode two is that law enforcement agency need dispose navigation system, has increased the cost of Lawful Interception.The common shortcoming of this dual mode be since LEA and navigation system relate to coordination between a plurality of departments, a plurality of system, mutual alternately, formality is various, can not carry out automatically, therefore need the long time of cost, intercepted user might occur and roll off the production line, also not begin the situation of locating.This dual mode all can not satisfy the demand that LEA promptly and accurately obtains online intercepted user positional information.
Summary of the invention
In order to solve the problems of the prior art, the present invention proposes the system and method for the online intercepted user positional information in a kind of WiMAX of obtaining network, positioning service and Lawful Interception are organically combined, utilize the WiMAX network element of support location service directly to reach the purpose of online intercepted user in time being obtained positional information.
An aspect of of the present present invention has proposed the system of the online intercepted user positional information in a kind of WiMAX of obtaining network, comprise LI Server and location agency, this system also comprises: register control, be positioned at ASN, be used for according to the direct positioning action that triggers online intercepted user of predetermined condition, and obtain the positional information of online intercepted user, and positional information is reported LI Server from location agency.
According to an aspect of the present invention, predetermined condition comprise following any: after online intercepted user is finished switching; And LI Server is deployed to ensure effective monitoring and control of illegal activities to online intercepted user and online intercepted user is online.
Another aspect of the present invention has proposed the method for the online intercepted user positional information in a kind of WiMAX of obtaining network, may further comprise the steps: the register control that is arranged in ASN is according to the positioning action of predetermined condition triggering to online intercepted user; And register control and location agency carries out alternately obtaining the positional information of online intercepted user, and positional information is reported LI Server.
According to a further aspect in the invention, predetermined condition comprise following any: after online intercepted user is finished switching; And LI Server is deployed to ensure effective monitoring and control of illegal activities to online intercepted user and online intercepted user is online.
When ASN was MODEL C, ASN comprised Target AGW, Serving AGW and Anchor DP.
Wherein, when Anchor DP and Serving AGW or Target AGW divide when being arranged, also comprise: Anchor DP sends message to Serving AGW or Target AGW and operates with triggered location; And if Serving AGW or Target AGW directly triggered location operation, then ignore message, otherwise Serving AGW or the operation of Target AGW triggered location.
According to a further aspect in the invention, also comprise: after the positioning action success, ServingAGW or Target AGW report Anchor DP with positional information; And Anchor DP reports LI Server with positional information.
According to a further aspect in the invention, also comprise: LI Server is to law enforcement agency's reporting position information.
Therefore, adopt system and method for the present invention, positioning service is organically merged in legal monitoring business, make LEA can under the situation that does not need positioning client terminal and location-server, obtain the positional information of online intercepted user in time, exactly.
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 WiMAX network architecture reference model figure;
Fig. 2 is WiMAX network Lawful Interception framework reference model figure;
Fig. 3 is WiMAX network positions business structure reference model figure;
Fig. 4 is the block diagram according to system of the present invention;
Fig. 5 is the block diagram according to first embodiment of system of the present invention;
Fig. 6 is the flow chart of the method according to this invention;
Fig. 7 is the flow chart (Target AGW reporting position information) that obtains online intercepted user positional information after switching according to the inventive method;
Fig. 8 is the flow chart (Anchor DP reporting position information) that obtains online intercepted user positional information after switching according to the inventive method;
Fig. 9 obtains online intercepted user positional information flow chart (Serving AGW reporting position information) according to the inventive method when deploying to ensure effective monitoring and control of illegal activities; And
Figure 10 obtains online intercepted user positional information flow chart (Anchor DP reporting position information) according to the inventive method when deploying to ensure effective monitoring and control of illegal activities.
Embodiment
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.
Fig. 4 is the block diagram according to system 400 of the present invention.
As shown in Figure 4, comprise LI Server 402 and location agency 404, in addition, also comprise: register control 406, be positioned at ASN, be used for according to the direct positioning action that triggers online intercepted user of predetermined condition, and act on behalf of the positional information of obtaining online intercepted user, and positional information is reported LI Server from the location.
According to an aspect of the present invention, predetermined condition comprise following any: after online intercepted user is finished switching; And LI Server is deployed to ensure effective monitoring and control of illegal activities to online intercepted user and online intercepted user is online.
Fig. 5 is the block diagram according to first embodiment of system of the present invention.
Present embodiment has at first improved the navigation system of WiMAX network, and positioning service and Lawful Interception are organically combined.In this system, comprise law enforcement agency (LEA), LI Server (LIS), be positioned at the register control (LC) of ASN-GW and be positioned at BS and the positioning client terminal of MS (LA).
As shown in Figure 5, this system comprises law enforcement agency (LEA), LI Server (LIS), is positioned at the register control (LC) of ASN-GW and is positioned at BS and the positioning client terminal of MS (LA).
Law enforcement agency (LEA) does not belong to the equipment of common carrier, and it mainly finishes the management of controlled object, collects the incident and the Content of Communication of the controlled object that LIS reports, and the information of collecting is handled;
LI Server according to the instruction of LEA, is monitored controlled user, collects the incident hop communication content of the controlled object of each network element report, and the output monitored data reports LEA;
Register control (LC), be used to control positioning service, when judging the online user in the following cases and monitored, initiatively initiate location, and will report positioning result this user, after intercepted user is finished switching, because variation has taken place in customer location, need report the user current latest position information to LEA, when LEA deploys to ensure effective monitoring and control of illegal activities to the user, if this user is online, need report the user current latest position information to LEA; And
Location agency (LA) is responsible for measurement, collection and report position information and gives LC.
Fig. 6 is the flow chart of the method according to this invention.
As shown in Figure 6, this method may further comprise the steps:
S602, the register control that is arranged in ASN is according to the positioning action of predetermined condition triggering to online intercepted user; And
S604, register control and location agency carry out alternately obtaining the positional information of online intercepted user, and positional information is reported LI Server.
According to a further aspect in the invention, predetermined condition comprise following any: after online intercepted user is finished switching; And LI Server is deployed to ensure effective monitoring and control of illegal activities to online intercepted user and online intercepted user is online.
When ASN was Profile C model, ASN comprised Target AGW, ServingAGW and Anchor DP.
Wherein, when Anchor DP and Serving AGW or Target AGW divide when being arranged, also comprise: Anchor DP sends message to Serving AGW or Target AGW and operates with triggered location; And if Serving AGW or Target AGW directly triggered location operation, then ignore message, otherwise Serving AGW or the operation of Target AGW triggered location.
According to a further aspect in the invention, also comprise: after the positioning action success, ServingAGW or Target AGW report Anchor DP with positional information; And Anchor DP reports LI Server with positional information.
According to a further aspect in the invention, also comprise: LI Server is to law enforcement agency's reporting position information.
Next first embodiment of the inventive method is described.
Present embodiment provides a kind of method, and the system after utilization improves obtains the positional information of online intercepted user, comprising:
(a) after intercepted user is finished switching, because variation has taken place customer location, need report the user current latest position information to LEA, and
(b) when LEA deploys to ensure effective monitoring and control of illegal activities to the user,, need report the user current latest position information to LEA if this user is online;
Present embodiment is perfect legal monitoring business and positioning service are for LEA provides positional information promptly and accurately.The realization of the positioning service of present embodiment is to realize by the network element (Serving AGW) of direct control execution positioning function, do not need LEA to increase positioning client terminal newly, do not need to reveal that monitoring users information is to third party service provider yet, reduced and realized the required cost of this function, also reduce complexity and time delay that multidisciplinary coordination brings, guaranteed the confidentiality of intercepted user information simultaneously.Present embodiment organically merges positioning service in legal monitoring business, can make LEA obtain the positional information of online intercepted user timely and accurately.
Fig. 7 is the flow chart (Target AGW reporting position information) that obtains online intercepted user positional information after switching according to the inventive method.
As shown in Figure 7, after successful switching takes place intercepted user,, need in time to LEA report of user latest position information because variation has taken place in user's position.When TargetAGW, Anchor DP detect intercepted user switch finish after, start this flow process, and by the positional information of Target AGW report of user.What Target AGW, Anchor DP can confirm to switch in several ways finishes, finish with the foundation of data channel in the present embodiment and confirm to switch the basis for estimation of finishing, present embodiment obtains the customer position information flow process after example has been described switching, the affirmation mode that other switchings are finished is suitable for this method equally.
S701 sets up data channel to finish switching between Anchor DP and the Target AGW, after data channel was set up and finished, Target AGW, Anchor DP detected user's switching and finish;
S702, Anchor DP report and switch the incident of finishing to LIS;
S703, LIS report and switch the incident of finishing to LEA;
S704, it is a user that quilt is monitored that Anchor DP detects the user who switches, and find that Anchor DP and Target AGW do not close and establish, send then for Target AGW and obtain the customer position information indication, notice Target AGW starts the positioning service flow process, if Anchor DP and Target AGW close establish, then directly carry out S705;
S705 to S708, Target AGW and BS, MS are mutual, and the user is positioned, and obtain positioning result,
S705 to S708 might carry out before S704, if Target AGW also detects the user who switches after switching is finished be a user that quilt is monitored, then can directly initiate the positioning service flow process, and do not need to wait for the indication of Anchor DP, if Target AGW do not wait for the indication of Anchor DP and directly initiates positioning flow, then receive Anchor DP obtain the customer position information indication after, ignore this message, continue the execution of positioning flow
S705 to S708 is an example of positioning service flow process, and other positioning flows also are used in this method between ASN-GW and the MS;
S709 is after Target AGW has successfully obtained user position information, to the positional information of LIS report of user; And
S710, LIS is to the positional information of LEA report of user.
Fig. 8 is the flow chart (Anchor DP reporting position information) that obtains online intercepted user positional information after switching according to the inventive method.
As shown in Figure 8, after successful switching takes place intercepted user,, need in time to LEA report of user latest position information because user's position changes.When TargetAGW, Anchor DP detect intercepted user switch finish after, start this flow process, and by the positional information of Anchor DP report of user.Target AGW, Anchor DP affirmation switching is finished and can be finished in several ways, finish with the foundation of data channel in the present embodiment and confirm to switch the basis for estimation of finishing, present embodiment obtains the customer position information flow process after example has been described switching, the affirmation mode that other switchings are finished is suitable for this method equally.
S801 to S808 is identical with S701 to S708;
S809 is after Target AGW has successfully obtained user position information, to AnchorDP report user position information;
S810 is after the user position information that Anchor DP receives, to LIS report user position information; And
S811, LIS is to the positional information of LEA report of user.
Fig. 9 obtains online intercepted user positional information flow chart (Serving AGW reporting position information) according to the inventive method when deploying to ensure effective monitoring and control of illegal activities.
As shown in Figure 9, when the online user is deployed to ensure effective monitoring and control of illegal activities by LIS by LEA, need in time to report controlled user positional information at this moment to LEA.When LEA deploys to ensure effective monitoring and control of illegal activities, and ServingAGW, Anchor DP detect intercepted user online after, start this flow process, and by the positional information of Serving AGW report of user.
S901, LEA notice LIS monitors certain user;
S902, S903, LIS notice ASN-AGW deploys to ensure effective monitoring and control of illegal activities, and for this user, different ASN-AGW may have different functions, as Anchor DP, Serving AGW;
S904, S906, Anchor DP, Serving AGW report of user notification line incident are given LIS;
S905, S907, LIS report of user notification line incident is given LEA;
S908, it is online that Anchor DP detects the user who is monitored, and find that AnchorDP and Serving AGW do not close and establish, send then for Serving AGW and obtain the customer position information indication, notice Serving AGW starts the positioning service flow process, if AnchorDP and Serving AGW close establish, then directly carry out S909;
S909 to S912, Serving AGW and BS, MS position the user alternately, and obtain positioning result,
S909 to S912 might carry out before S908, if Serving AGW also detects the user who is monitored when LEA deploys to ensure effective monitoring and control of illegal activities online, then can directly initiate the positioning service flow process, do not need to wait for the indication of Anchor DP, if Serving AGW do not wait for the indication of Anchor DP and directly initiates positioning flow, then receive Anchor DP obtain the customer position information indication after, ignore this message, continue the execution of positioning flow
S909 to S912 is an example of positioning service flow process, and other positioning flows also are used in this method between ASN-GW and the MS;
S913 is after Serving AGW has successfully obtained user position information, to the positional information of LIS report of user; And
S914, LIS is to the positional information of LEA report of user.
Figure 10 obtains online intercepted user positional information flow chart (Anchor DP reporting position information) according to the inventive method when deploying to ensure effective monitoring and control of illegal activities.
As shown in figure 10, when the online user is deployed to ensure effective monitoring and control of illegal activities by LIS by LEA, need in time to report controlled user positional information at this moment to LEA, when LEA deploys to ensure effective monitoring and control of illegal activities, and ServingAGW, Anchor DP detect intercepted user online after, start this flow process, and by the positional information of Anchor DP report of user.
S1001 to S1012 is identical with S901 to S912;
S1013 is after Serving AGW has successfully obtained user position information, to Anchor DP report user position information;
S1014 is after the user position information that Anchor DP receives, to LIS report user position information; And
S1015, LIS is to the positional information of LEA report of user.
When the WiMAX network was Profile B model, the TargetAGW in the foregoing description, Serving AGW should be Target ASN, Serving ASN.
In sum, adopt system and method for the present invention,, solved wireless broadband network, especially obtain the problem of the positional information of online intercepted user in the WiMAX network timely and accurately by with positioning service and the organic combination of legal monitoring business.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, 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 (8)
1. a system that obtains the online intercepted user positional information in the WiMAX network comprises LI Server and location agency, it is characterized in that, also comprises:
Register control, be positioned at access business network, be used for according to the direct positioning action that triggers online intercepted user of predetermined condition, and act on behalf of the positional information of obtaining described online intercepted user, and described positional information is reported described LI Server from described location.
2. system according to claim 1 is characterized in that, described predetermined condition comprise following any:
After described online intercepted user is finished switching; And
Described LI Server described online intercepted user is deployed to ensure effective monitoring and control of illegal activities and described online intercepted user online.
3. a method of obtaining the online intercepted user positional information in the WiMAX network is characterized in that, may further comprise the steps:
The register control that is arranged in access business network is according to the positioning action of predetermined condition triggering to online intercepted user; And
Described register control carries out alternately to obtain described online quilt with the location agency
The positional information of monitoring users, and described positional information reported LI Server.
4. method according to claim 3 is characterized in that, described predetermined condition comprise following any:
After described online intercepted user is finished switching; And
Described LI Server described online intercepted user is deployed to ensure effective monitoring and control of illegal activities and described online intercepted user online.
5. method according to claim 4 is characterized in that, when described access business network was MODEL C, described access business network comprised Target AGW, ServingAGW and Anchor DP.
6. method according to claim 5 is characterized in that, when described Anchor DP and described Serving AGW or described Target AGW divide when being arranged, also comprises:
Described Anchor DP sends message to trigger described positioning action to described Serving AGW or described Target AGW; And
If described Serving AGW or described Target AGW have directly triggered described positioning action, then ignore described message, otherwise described Serving AGW or described Target AGW trigger described positioning action.
7. method according to claim 5 is characterized in that, also comprises:
After the described positioning action success, described Serving AGW or described TargetAGW report described Anchor DP with described positional information; And
Described Anchor DP reports described LI Server with described positional information.
8. method according to claim 3 is characterized in that, also comprises:
Described LI Server reports described positional information to law enforcement agency.
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| CNA2008100052570A CN101448198A (en) | 2008-01-31 | 2008-01-31 | System and method for acquiring location information of on-line intercepted user in WiMAX |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011000317A1 (en) * | 2009-07-03 | 2011-01-06 | 中兴通讯股份有限公司 | Method and device for reporting positional information of user terminal for offline accounting in wimax |
| WO2011063691A1 (en) * | 2009-11-30 | 2011-06-03 | 中兴通讯股份有限公司 | Method and system for one-key-call |
-
2008
- 2008-01-31 CN CNA2008100052570A patent/CN101448198A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011000317A1 (en) * | 2009-07-03 | 2011-01-06 | 中兴通讯股份有限公司 | Method and device for reporting positional information of user terminal for offline accounting in wimax |
| CN101938731B (en) * | 2009-07-03 | 2014-11-05 | 中兴通讯股份有限公司 | Reporting method and device for user terminal position information in WiMAX (Worldwide Interoperability for Microwave Access) offline charging |
| WO2011063691A1 (en) * | 2009-11-30 | 2011-06-03 | 中兴通讯股份有限公司 | Method and system for one-key-call |
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Open date: 20090603 |