CN101043731A - information processing method and system in terminal exiting network process - Google Patents
information processing method and system in terminal exiting network process Download PDFInfo
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- CN101043731A CN101043731A CNA2006100713451A CN200610071345A CN101043731A CN 101043731 A CN101043731 A CN 101043731A CN A2006100713451 A CNA2006100713451 A CN A2006100713451A CN 200610071345 A CN200610071345 A CN 200610071345A CN 101043731 A CN101043731 A CN 101043731A
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Abstract
The related message process method during a terminal exits the network comprises: BS and other wireless communication network access points determine the terminal exit, and cancel stored relative message; then, the access point notifies the calling controller and authorizer to cancel the stored message for this terminal. This invention can reduce resource waste led by unnecessary message, and simple to implementation.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to information processing method and system in a kind of terminal exiting network process.
Background technology
In communication system, when terminal is in idle pulley, the information of storage terminal correspondence not on the access points such as WiMAX (micro-wave access to global intercommunication) base station, as positional information etc., for this reason, need in system, be provided under terminal is in idle pulley, preserving the entity of the information of terminal correspondence, as paging control/location register in the present WiMAX system etc., wherein said location register is respectively applied for the information of preserving the terminal correspondence, as positional information etc.
In addition, in cordless communication networks such as WiMAX,, need set up corresponding security information, just can carry out communication service safely based on described security information terminal at each terminal for guaranteeing the proper communication between terminal and the communication network.Therefore, the existence of security information is the key that guarantees to realize reliable communication in communication system.
With the WiMAX communication system is example, authentication device as access control point need be preserved some described security information for terminal, described security information is divided into the authorization key information of the safety alliance information and the chain of command of data surface, wherein, described authorization key information comprises: AK (authorization key) context, PMK (antithesis master key) context, MSK (master session key) etc.
In communication network, when moving back when net because of certain condition triggering terminal, on the network element of network side for this reason the information of terminal correspondences such as the terminal positional information of preserving, security information all need deletion, to save Internet resources; Wherein, location information of terminals comprises the paging group information at terminal place etc., and the information of described paging group is to be the information of terminal distribution and preservation by paging controller.
In communication system, terminal may exit network because of a variety of causes.After terminal exits network, need be with the security information deletion that in the network is its preservation, to save Internet resources.
At present, deletion action at the security information of the terminal correspondence that exits network mainly is to depend on temporal information to realize, is specially: be provided with corresponding life time at each security information, when life time to after date, then security information lost efficacy, and promptly triggered the corresponding security information of deletion.
If only utilize the condition of temporal information as the deletion security information, obviously can't satisfy the demand of certain applications scene, for example, after a terminal has withdrawed from network, because the life time of the security information of this terminal correspondence is still not yet due, therefore meeting still safeguards these key informations for it that according to the life time of AK, PMK and MSK this is a kind of wasting of resources to authentication device obviously on the authentication device.
And, in existing communication system,, in the network element of network side, also can preserve other information for the terminal of moving back net, to this, also do not provide a kind of technical finesse means can be used for deleting other information of the terminal correspondence that each network element preserves.
Therefore, behind terminal exiting network, in network elements such as authentication device, paging controller/location register, still can preserve the relevant information of invalid terminal correspondence, the resource of greatly having wasted network element.
Summary of the invention
The purpose of this invention is to provide information processing method and system in a kind of terminal exiting network process, thereby can behind terminal exiting network, delete the information of this terminal correspondence of preserving in the information stores network element in the network in time, to save the resource of network.
The objective of the invention is to be achieved through the following technical solutions:
The invention provides the information processing method in a kind of terminal exiting network process, comprising:
After the access point of A, cordless communication network is determined terminal exiting network, then delete the information of this terminal correspondence of access point preservation;
B, access point announcement information storage network element is deleted the information of this terminal correspondence of its preservation, and described information stores network element receives the information of this terminal correspondence that will delete self preservation after the described notice.
Described step B comprises:
Access point moves back the net request message to what the information stores network element sent corresponding terminal, is carrying identifiers of terminals information in the message.
Described access point is the base station in the micro-wave access to global intercommunication WiMAX network.
Described access point determines that terminal exiting network comprises:
Terminal sends message to access point after determining to exit network, and access point is determined terminal exiting network after receiving described message;
Perhaps,
When access point need initiatively be initiated the operation of terminal exiting network network, then determine terminal exiting network.
The processing that net is moved back in described terminal initiation comprises:
Terminal uses the indication of range searching request message to move back net, in the described range searching request message loaded information comprise that zero bit position of range searching purpose is zero, the identifier of paging controller and at least one item in the power-off indication;
Perhaps,
In the WiMAX network, the terminal of normally moving back net sends to the base station as access point goes register requirement DREG-REQ message, is carrying the indication information that terminal need be moved back net in the message.
Among the present invention, when described access point was the base station, the information of preserving in the described access point comprised safe context information, and described safe context information comprises the context and/or the traffic encryption key information of Security Association context, authorization key.
Among the present invention, when described base station during as access point, described step B comprises:
B1, base station directly or by intermediate entities move back the net request message to what paging controller and authentication device sent the information that is used to indicate deletion terminal correspondence respectively indirectly, carrying identifiers of terminals information in the message, afterwards, paging controller and authentication device are received the information of this terminal correspondence that described message and deletion are preserved separately;
Perhaps,
B2, base station directly or by intermediate entities move back the net request message to what paging controller sent the information that is used to indicate deletion terminal correspondence indirectly, carrying identifiers of terminals information in the message, afterwards, paging controller is received described message and is deleted the information of this terminal correspondence of self preserving.
Described step B2 also comprises:
What paging controller sent the information be used to indicate deletion terminal correspondence to authentication device moves back the net request message, is carrying identifiers of terminals information in the message, and afterwards, authentication device is received described message and deleted the information of this terminal correspondence of self preserving.
The information of the terminal correspondence that described paging controller need be deleted comprises:
In the media access control address of the Network Access Identifier of terminal symbol, terminal, the anchor ASN-GW of terminal, information that service flow is relevant, No. three interface related information and the security information at least one.
The information that described service flow is relevant comprises: at least one item in the label information of the service quality assurance of service flow classifier, service flow, the connection identifier (CID relevant with service flow identifier and data path.
Described No. three interface related information comprise: at least one item in the state detailed information of the IP address of home agent, Care-of Address, dynamic host configuration protocol DHCP server, authentication charging aaa server and No. three reference points.
Described security information comprises: the information that IKMP second edition PKMv2 is relevant, and comprise the relevant security information of mobile IP alternatively.
The information of the terminal correspondence that described authentication device need be deleted comprises: antithesis master key and contextual information thereof.
Described method also comprises:
After the information of information stores network element deletion terminal correspondence, then notify the entity of the information of its deletion terminal correspondence to return response message.
Comprise identifiers of terminals information and the whether successful identification information of deletion in the described response message.
The present invention also provides the information processing system in a kind of terminal exiting network process, comprising:
Move back the net recognition unit, be arranged in the access point, be used for identification terminal and whether move back net, and after determining terminal exiting network, trigger the deletion information control unit;
The deletion information control unit is arranged in the access point, is used under the triggering of moving back the net recognition unit, sends the wherein notification of information of the terminal correspondence of preservation of deletion to the information stores network element;
The information deletion unit is arranged at respectively in access point and the information stores network element, is used for after determining terminal exiting network the information of this terminal correspondence of control deletion.
Described system also comprises:
Deletion response processing unit is arranged in the information stores network element, is used for replying response message to access point or information stores network element under the triggering of the information deletion unit of information stores network element.
Described access point comprises the base station in the WiMAX system.
Described information memory cell comprises: paging controller and/authentication device.
As seen from the above technical solution provided by the invention, among the present invention, when Network Access Points such as base station determine that user terminal exits network, information stores network elements such as then base station, and authentication device, paging controller all can in time be deleted the information of this terminal correspondence of its preservation under the triggering of base station.Therefore, realization of the present invention can effectively reduce on base station, authentication device, the paging controller because of storing unwanted information and causes waste to resource, and implementation provided by the invention has the simple advantage of realization.
Description of drawings
Fig. 1 is a realization principle schematic of the present invention;
Fig. 2 is the specific implementation process schematic diagram one of method of the present invention;
Fig. 3 is the specific implementation process schematic diagram two of method of the present invention;
Fig. 4 is the concrete application schematic diagram one of the method for the invention;
Fig. 5 is the concrete application schematic diagram two of the method for the invention;
Fig. 6 is the concrete application schematic diagram three of the method for the invention;
Fig. 7 is the specific implementation structural representation of system of the present invention.
Embodiment
When making terminal exiting network, can in time delete the information that terminal is for this reason preserved on the network element of network side, the invention provides corresponding processing scheme.
As shown in Figure 1, implementation provided by the invention mainly comprises following processing procedure:
Step 11: access point detects moving back when netting request of terminal, if having the information of terminal storage for this reason on the access point, then deletes corresponding information; Then, access point also needs to send the net request of moving back to the information stores network element;
Described information stores network element moves back the identification information that needs to comprise the terminal of moving back net in the net request described, so that can be determined the information of the terminal correspondence of needs deletion;
Step 12: the information stores network element receive described move back net request after, determine terminal exiting network, then delete on the information stores network element information that terminal is for this reason preserved.
Make when terminal exiting network through above-mentioned processing procedure, can delete the information of preserving on the information stores network element of network side in time into this terminal.
Among the present invention, be used for sense terminals and whether move back the access point of net and can be the base station of WiMAX network, at this moment, described information stores network element can control for paging/in location register and the authentication device at least one.To be applied in the WiMAX network is example, and the present invention comprises in the specific implementation process:
(1) base station detects the terminal that is under the idle pulley and attempts to move back net, then will delete on the base station information of terminal storage for this reason;
Then, the base station will be respectively sends to the network element of the information of each storage terminal correspondence moves back the net request, specifically comprises sending to paging control/location register and authentication device moving back the net request message, indicates and moves back net; The identifier that needs carried terminal in the described message is so that indication specifically will be moved back the terminal of net;
Terminal can be used RNG-REQ (range searching request) message to indicate and move back net, this can use the combination indication of several signs to move back net, described several sign comprises: RPI (range searching purpose, Ranging Purpose Indicator) zero bit position is zero, the identifier of paging controller, PDI (power-off indication, Power Down Indicator);
(2) network element that stores the information of terminal correspondence such as paging control/location register and authentication device receives described move back behind the net request message and will delete on it information of terminal storage for this reason respectively according to the identifiers of terminals in the message.
Can under the terminal exiting network situation, delete end message in paging control/location register and the authentication device timely and accurately by said process.
The present invention can also adopt following concrete processing procedure to be in being applied to the WiMAX network time:
When detecting the terminal that is under the idle pulley, the base station attempts to move back when net, and on the deletion base station for this reason after the information of terminal storage, only move back the net request message to what the paging control/location register of storage terminal information sent that indication moves back net, the form of message and send mode are identical with the description in the above-mentioned processing procedure; Paging control/location register receive described move back will delete behind the net request message be the corresponding terminal canned data from one's body.At this moment, the processing mode for the terminal information of preserving in the authentication device is as follows:
At first, move back the net request message to the authentication device transmission, need to comprise identifiers of terminals information in the message by paging control/location register;
Afterwards, authentication device receive described move back the net request message after, according to being the corresponding terminal canned data on the identifiers of terminals information deletion authentication device in the message.
Can under the terminal exiting network situation, delete end message in paging control/location register and the authentication device equally timely and accurately by this processing procedure.
For the present invention there being further understanding, several embodiments of the present invention are described in detail below in conjunction with several accompanying drawings.
Embodiment one
This embodiment is applied to the WiMAX network, and concrete processing mode comprises as shown in Figure 2:
Step 21: the base station detects the terminal that is under the idle pulley and attempts to move back net, will delete to be the relevant terminal canned data on the base station;
After this terminal information of base station deletion self storage, the session information storage network element to each storage terminal information is respectively sent the net request of moving back, promptly move back the net request message to what paging control/location register and authentication device transmission were used to indicate terminal exiting network respectively;
The base station is to the identifier that needs carried terminal in the net request message that moves back of paging control/location register and authentication device transmission;
In the WiMAX system, terminal can be used the range searching request message to indicate and move back net, specifically can use the combination of several signs to realize, several signs can be zero for: zero bit position of range searching purpose, the identifier of paging controller, power-off are indicated;
Step 22: paging control/location register and authentication device will receive described move back the net request message after, respectively according to the corresponding terminal canned data of respectively doing for oneself of the identifiers of terminals information deletion in the message;
The information that needs to delete on paging control/location register includes but not limited to: in the media access control address of the Network Access Identifier of terminal symbol, terminal, the anchor ASN-GW of this terminal, information that service flow is relevant, No. three interface related information and the security information etc. at least one;
The information that described service flow is relevant includes but not limited to: at least one item in the information such as label information of the service quality assurance of service flow classifier, service flow, the connection identifier (CID relevant with service flow identifier and data path;
Described No. three interface related information include but not limited to: at least one item in the state detailed information of the IP address of home agent, Care-of Address, Dynamic Host Configuration Protocol server, aaa server and No. three reference points;
Described security information includes but not limited to: the relevant information of PKMv2 (IKMP second edition), and comprising the relevant security information of mobile IP alternatively, the information that wherein said PKMv2 is relevant comprises safety alliance information (Business Stream encryption key parameters etc.) and the message packet number of the up-downgoing Replay Attack that is used to prevent eat dishes without rice or wine;
The information that needs to delete on authentication device comprises PMK (antithesis master key) and context thereof at least.
Step 23: after paging control/location register and authentication device have been deleted relevant terminal information respectively, then can reply and move back the net response message to the base station, the deletion action of the corresponding information which terminal is finished comprises identifiers of terminals in the described response message, so that can accurately be known in the base station.
Embodiment two
This embodiment also is applied to the WiMAX network, as shown in Figure 3, specifically comprises:
Step 31: the base station detects the terminal that is under the idle pulley and attempts to move back net, will be the information of this terminal storage on the deletion base station;
It is deleted for after the information of this terminal storage in the base station, then will send and move back the net indication information to the network element that stores end message, be specially to paging control/location register send be used to indicate terminal exiting network move back net request message, the described identifier that needs carried terminal in the net indication information that moves back;
In the WiMAX system, terminal can be used the range searching request message to indicate and move back net, specifically can use the combination indication of several signs to move back net, described several signs can be the identifier, power-off indication etc. of zero, paging controller for: zero bit position of range searching purpose;
Step 32: paging control/location register receive described move back the net request message after, then according to being the relevant terminal canned data on the identifiers of terminals in the message deletion paging control/location register.
The information that needs to delete on paging control/location register includes but not limited to: in the media access control address of the Network Access Identifier of terminal symbol, terminal, the anchor ASN-GW of this terminal, information that service flow is relevant, No. three interface related information and the security information etc. at least one;
The information that described service flow is relevant includes but not limited to: at least one item in the information such as label information of the service quality assurance of service flow classifier, service flow, the connection identifier (CID relevant with service flow identifier and data path;
Described No. three interface related information include but not limited to: at least one item in the state detailed information of the IP address of home agent, Care-of Address, Dynamic Host Configuration Protocol server, aaa server and No. three reference points;
Described security information includes but not limited to: the relevant information of PKMv2 (IKMP second edition), and comprising the relevant security information of mobile IP alternatively, the information that wherein said PKMv2 is relevant comprises safety alliance information (Business Stream encryption key parameters etc.) and the message packet number of the up-downgoing Replay Attack that is used to prevent eat dishes without rice or wine;
Step 33: after paging control/location register has been deleted relevant terminal information, then reply and move back the net response message, answer the identifier of carried terminal in the message to the base station;
Step 34: paging control/location register also sends to authentication device and moves back the net request message, identifier that equally should carried terminal in this message;
Step 35: authentication device receive described move back the net request message after, will be according to being the relevant terminal canned data on the deletion of the identifiers of terminals in the message authentication device.
The information that needs to delete on authentication device comprises at least: PMK and context thereof;
Step 36: after the information of authentication device deletion corresponding terminal, then reply and move back the net response message, carrying identifiers of terminals in the message to paging control/location register.
The invention described above specifically can be applied in normally the exit network safe context information processing of the terminal that the back preserves at authentication device of terminal, after determining that promptly terminal is normally moved back net, then delete the safe context information (being security information) of its maintenance, thereby avoid the waste of resource on the authentication device by the relevant authentication device of base station proactive notification.
More specifically say, in this concrete application provided by the invention, when the base station determines that terminal will exit network, as the base station receive by terminal initiate move back the net request or the net request is initiatively initiated to move back in the base station, then delete the safe context of this terminal correspondence of its preservation, described safe context information comprises: the context of Security Association context, authorization key, traffic encryption key information; Simultaneously, the base station also sends the safe context deletion request message to authentication device, carrying identifiers of terminals information in the message, the request message that authentication device is sent according to the base station reaches the safe context information of its corresponding terminal correspondence of depositing of identifiers of terminals information deletion wherein, and described safe context information comprises: the sequence number of antithesis master key, antithesis master key and the life time of antithesis master key.
Whether the operation of confirming authentication device deletion safe context information for ease of the base station is successful, after authentication device is deleted corresponding safe context information, also need to send safe context deletion response message, need to comprise the whether successful sign of identifiers of terminals information and deletion action in the message to the base station.
Say that briefly in concrete application process, the security information deletion processing procedure when terminal exits network comprises as shown in Figure 4 in the present invention:
Step 41: the interacting message that moves back net between terminal and the base station.
Step 42: the base station sends the safe context deletion request message to authentication device;
The security information of its preservation is at first deleted in the base station, carry out this step then and will send the safe context deletion request message to authentication device, the identifier that needs carried terminal in the described message is the safe context information of which terminal correspondence so that authentication device can determine the deletion of its needs according to the identifier information of relevant terminal.
Step 43: authentication device returns safe context deletion response message to the base station;
Authentication device receives described message, at first, determine that it is the safe context information of this terminal storage according to the identifiers of terminals of carrying in the message, and with its deletion, reply safe context deletion response message to the base station then, need to carry the sign and the identifiers of terminals of deletion action success or failure in the described message.
In above-mentioned processing procedure, if the base station is not received the response message of authentication device within the predetermined time, then the base station will send the safe context deletion request message to authentication device again, the setting of this step is in order to guarantee the reliable realization of whole deletion safe context information process, and this step also can be omitted in specific implementation as required.
For ease of to this concrete understanding of using provided by the invention, be described in detail below in conjunction with several concrete application example of accompanying drawing to this application of the present invention.
Application Example one
This embodiment is used for the WiMAX network, and base station and authentication device are under the same gateway.
As shown in Figure 5, the concrete handling process of this embodiment may further comprise the steps:
Step 51: when terminal is normally moved back net, can send DREG-REQ (going register requirement) message, its De-Registration_Request_Code (removing the register requirement sign indicating number) is changed to 0X00, and the expression demanding terminal exits network;
This step also can be omitted as required, at this moment, directly initiates to move back net operation by BS;
Step 52: after this message is received in the base station, will reply a DREG-CMD (removing log-in command) message, and its Action code (actuating code) field is changed to 04 to terminal;
Terminal then can exit network after receiving described DREG-CMD message.
Step 53: in the process of execution in step 52, the base station also needs to delete the safe context that the terminal for this reason on it is prepared, then, send the safe context deletion request message, the safe context information that the indication authentication device is deleted the counterpart terminal of its preservation to anchoring authentication device;
Obtain the reason of the safe context information of deletion terminal correspondence for ease of authentication device, also corresponding reason need be described in described deletion request message, in this application of the present invention, sign is corresponding former because terminal exits network, simultaneously, in this message, also to indicate information such as identifiers of terminals, so that authentication device is exactly with the safe context information of the terminal correspondence that exits network;
Need to prove that step 52 and 53 also can be carried out simultaneously, can not have precedence relationship;
Step 54: anchoring authentication device is replied a safe context deletion response message to the base station, needs to carry sign, the identifiers of terminals of success or failure in the described message.
If the base station is not received the response message of authentication device within a certain period of time, will retransmit the safe context deletion request message.
Application Example two
This embodiment is applied to the WiMAX network equally, and just different with Application Example one is that the base station is under the different gateways with authentication device among this embodiment.
As shown in Figure 6, the specific implementation step of the authentication device of base station proactive notification in this embodiment deletion safe context is as described below:
Step 61: when terminal normally exits network, then can send DREG-REQ message to the base station, corresponding D e-Registration_Request_Code is changed to 0X00 in described message, and the expression terminal wishes to exit network;
This step also can be omitted in the specific implementation process, at this moment, directly initiates the processing procedure that terminal exits network by BS;
Step 62: after described DREG-REQ message is received in the base station, will reply a DREG-CMD message, and its Action code field is changed to 04 to terminal;
After terminal is received described message, will exit network;
Step 63: in the process of execution in step 62, the base station at first needs to delete the safe context that the terminal for this reason of its preservation is prepared, send the safe context deletion request message to Tandem Gateway then, the safe context of indication Tandem Gateway deletion counterpart terminal, and the reason of the safe context of explanation deletion terminal, among the present invention, be that terminal exits network, in described message, also need to indicate information such as identifiers of terminals corresponding reason mark;
Equally, order before and after the execution of described step 62 and step 63 is regardless of also can be carried out simultaneously;
Step 64: Tandem Gateway continues to the anchoring authentication device place of terminal gateway forwards safe context deletion request message after receiving described message;
Step 65: anchoring authentication device place gateway is then transmitted the safe context deletion request message to corresponding anchoring authentication device after receiving described message;
Whether step 66: anchoring authentication device receives the safe context information of this terminal correspondence of deletion behind the described safe context deletion request message, replys safe context deletion response message to the base station then, indicate the safe context of this terminal to delete;
The information that comprises in described safe context deletion response message has: at least one item in the information such as the identification information of identifiers of terminals information, deletion success or not and explanation;
Anchoring authentication device need will at first be sent the gateway at anchoring authentication device place to the safe context deletion response message that reply the base station;
Step 67: after the gateway at anchoring authentication device place is received described deletion safe context response message, continue to give Tandem Gateway with described forwards;
Step 68: Tandem Gateway receives that described message continues to transmit this deletion safe context response message to the base station.
In this embodiment, if the response message of authentication device is not received within a certain period of time in the base station or the deletion safe context response message received in the failure of expression deletion action, then the base station will resend corresponding safe context deletion request message.
The present invention also provides the security information treatment system under a kind of terminal exiting network situation, as shown in Figure 7, comprises following processing unit during the specific implementation of described system:
Move back the net recognition unit, be arranged in the access point, described access point can be the network side entity of the base station in the WiMAX system or other similar functions, and this unit is used for identification terminal and whether moves back net, and after determining terminal exiting network, triggers the deletion information control unit;
The deletion information control unit is arranged in the access point, is used under the triggering of moving back the net recognition unit, sends the wherein notification of information of the terminal correspondence of preservation of deletion to the information stores network element;
The information deletion unit is arranged at respectively in access point and the information stores network element, be used for after determining terminal exiting network, the information of this terminal correspondence of control deletion, described information memory cell can paging controller and authentication device at least one;
Deletion response processing unit is arranged in the information stores network element, is used for replying response message to access point or information stores network element under the triggering of the information deletion unit of information stores network element.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (19)
1, the information processing method in a kind of terminal exiting network process is characterized in that, comprising:
After the access point of A, cordless communication network is determined terminal exiting network, then delete the information of this terminal correspondence of access point preservation;
B, access point announcement information storage network element is deleted the information of this terminal correspondence of its preservation, and described information stores network element receives the information of this terminal correspondence that will delete self preservation after the described notice.
2, method according to claim 1 is characterized in that, described step B comprises:
Access point moves back the net request message to what the information stores network element sent corresponding terminal, is carrying identifiers of terminals information in the message.
3, method according to claim 1 is characterized in that, described access point is the base station in the micro-wave access to global intercommunication WiMAX network.
4, method according to claim 1 is characterized in that, described access point determines that terminal exiting network comprises:
Terminal sends message to access point after determining to exit network, and access point is determined terminal exiting network after receiving described message;
Perhaps,
When access point need initiatively be initiated the operation of terminal exiting network network, then determine terminal exiting network.
5, method according to claim 4 is characterized in that, the processing that net is moved back in described terminal initiation comprises:
Terminal uses the indication of range searching request message to move back net, in the described range searching request message loaded information comprise that zero bit position of range searching purpose is zero, the identifier of paging controller and at least one item in the power-off indication;
Perhaps,
In the WiMAX network, the terminal of normally moving back net sends to the base station as access point goes register requirement DREG-REQ message, is carrying the indication information that terminal need be moved back net in the message.
6, method according to claim 1, it is characterized in that, when described access point is the base station, the information of preserving in the described access point comprises safe context information, and described safe context information comprises the context and/or the traffic encryption key information of Security Association context, authorization key.
According to each described method in the claim 1 to 6, it is characterized in that 7, when described base station during as access point, described step B comprises:
B1, base station directly or by intermediate entities move back the net request message to what paging controller and authentication device sent the information that is used to indicate deletion terminal correspondence respectively indirectly, carrying identifiers of terminals information in the message, afterwards, paging controller and authentication device are received the information of this terminal correspondence that described message and deletion are preserved separately;
Perhaps,
B2, base station directly or by intermediate entities move back the net request message to what paging controller sent the information that is used to indicate deletion terminal correspondence indirectly, carrying identifiers of terminals information in the message, afterwards, paging controller is received described message and is deleted the information of this terminal correspondence of self preserving.
8, method according to claim 7 is characterized in that, described step B2 also comprises:
What paging controller sent the information be used to indicate deletion terminal correspondence to authentication device moves back the net request message, is carrying identifiers of terminals information in the message, and afterwards, authentication device is received described message and deleted the information of this terminal correspondence of self preserving.
9, method according to claim 7 is characterized in that, the information of the terminal correspondence that described paging controller need be deleted comprises:
In the media access control address of the Network Access Identifier of terminal symbol, terminal, the anchor ASN-GW of terminal, information that service flow is relevant, No. three interface related information and the security information at least one.
10, method according to claim 9, it is characterized in that the information that described service flow is relevant comprises: at least one item in the label information of the service quality assurance of service flow classifier, service flow, the connection identifier (CID relevant and data path with service flow identifier.
11, method according to claim 9, it is characterized in that described No. three interface related information comprise: at least one item in the state detailed information of the IP address of home agent, Care-of Address, dynamic host configuration protocol DHCP server, authentication charging aaa server and No. three reference points.
12, method according to claim 9 is characterized in that, described security information comprises: the information that IKMP second edition PKMv2 is relevant, and comprise the relevant security information of mobile IP alternatively.
13, method according to claim 7 is characterized in that, the information of the terminal correspondence that described authentication device need be deleted comprises: antithesis master key and contextual information thereof.
14, method according to claim 7 is characterized in that, described method also comprises:
After the information of information stores network element deletion terminal correspondence, then notify the entity of the information of its deletion terminal correspondence to return response message.
15, whether successful method according to claim 14 is characterized in that, comprise identifiers of terminals information and deletion identification information in the described response message.
16, the information processing system in a kind of terminal exiting network process is characterized in that, comprising:
Move back the net recognition unit, be arranged in the access point, be used for identification terminal and whether move back net, and after determining terminal exiting network, trigger the deletion information control unit;
The deletion information control unit is arranged in the access point, is used under the triggering of moving back the net recognition unit, sends the wherein notification of information of the terminal correspondence of preservation of deletion to the information stores network element;
The information deletion unit is arranged at respectively in access point and the information stores network element, is used for after determining terminal exiting network the information of this terminal correspondence of control deletion.
17, system according to claim 16 is characterized in that, described system also comprises:
Deletion response processing unit is arranged in the information stores network element, is used for replying response message to access point or information stores network element under the triggering of the information deletion unit of information stores network element.
18, system according to claim 16 is characterized in that, described access point comprises the base station in the WiMAX system.
19, according to claim 16,17 or 18 described systems, it is characterized in that described information memory cell comprises: paging controller and/authentication device.
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| CNA2006100713451A CN101043731A (en) | 2006-03-25 | 2006-03-25 | information processing method and system in terminal exiting network process |
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| CNA2006100713451A CN101043731A (en) | 2006-03-25 | 2006-03-25 | information processing method and system in terminal exiting network process |
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| CN101917718A (en) * | 2010-08-31 | 2010-12-15 | 广州杰赛科技股份有限公司 | Method and system for WMAN (wireless metropolitan area network) entity exiting from network |
| WO2011085601A1 (en) * | 2010-01-15 | 2011-07-21 | 中兴通讯股份有限公司 | Method for femtocell to quit network abnormally |
| WO2011085600A1 (en) * | 2010-01-15 | 2011-07-21 | 中兴通讯股份有限公司 | Method for femto to quit network |
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| US8909750B2 (en) | 2008-05-07 | 2014-12-09 | Huawei Technologies Co., Ltd. | Method for disconnecting multiple hosts from network when the gateway mobile station used by the multiple hosts indicates it is exiting the network, and network management device |
| CN102415182A (en) * | 2009-04-29 | 2012-04-11 | 皇家飞利浦电子股份有限公司 | A method for communicating in a mobile network |
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| WO2011085601A1 (en) * | 2010-01-15 | 2011-07-21 | 中兴通讯股份有限公司 | Method for femtocell to quit network abnormally |
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