CN100455111C - A method and system for implementing R3 interface migration based on resource optimization - Google Patents
A method and system for implementing R3 interface migration based on resource optimization Download PDFInfo
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- CN100455111C CN100455111C CNB2005100808989A CN200510080898A CN100455111C CN 100455111 C CN100455111 C CN 100455111C CN B2005100808989 A CNB2005100808989 A CN B2005100808989A CN 200510080898 A CN200510080898 A CN 200510080898A CN 100455111 C CN100455111 C CN 100455111C
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- H04W36/12—Reselecting a serving backbone network switching or routing node
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- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
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Abstract
本发明公开了一种基于资源优化实现R3接口迁移的方法，该方法由R3模块在基于资源优化确认需要进行R3接口迁移时，选定进行迁移的MSS/SS，并确定目标FA所对应的R3接口，之后向MIP client模块请求切换；MIP client模块在收到切换请求后，发送注册请求到HA，由HA基于目标FA所对应的R3接口建立数据通路，并创建相应的上下文；RM模块在确认迁移成功后，维护所创建的数据通路及上下文。本发明同时还公开了一种基于资源优化实现R3接口迁移的系统。本发明提供了基于资源优化对R3接口进行迁移的方案。该方案解决了现有技术中只有在MSS/SS进行小区间切换时才能进行R3接口迁移的问题。
The invention discloses a method for implementing R3 interface migration based on resource optimization. In the method, when the R3 module confirms that R3 interface migration needs to be performed based on resource optimization, the MSS/SS for migration is selected, and the R3 corresponding to the target FA is determined. After receiving the switching request, the MIP client module sends a registration request to the HA, and the HA establishes a data path based on the R3 interface corresponding to the target FA and creates a corresponding context; the RM module confirms After successful migration, maintain the created data path and context. The invention also discloses a system for realizing R3 interface migration based on resource optimization. The invention provides a solution for migrating the R3 interface based on resource optimization. This solution solves the problem in the prior art that the R3 interface can only be migrated when the MSS/SS is switching between cells.
Description
Technical field
The present invention relates to wireless communication technology field, relate to a kind of method and system that realize the Interface R3 migration based on resource optimization or rather.
Background technology
IEEE 802.16 has defined the wireless metropolitan area network standard of fixed broadband wireless access (BWA), and it comprises IEEE 802.16a, IEEE 802.16d and IEEE 802.16e.And WiMAX is a world microwave access mutual operability industry organization, is intended to promote the promotion and application of IEEE 802.16 serial air protocol in the whole world.
At present, WiMAX provides end-to-end reference model as shown in Figure 1, and this reference model comprises travelling carriage/subscriber station (MSS/SS), access service network (ASN) and connectivity serving network (CSN).
Wherein, MSS/SS is a subscriber equipment, and the user is by using this devices accessing WiMAX network.
ASN is used to the WiMAX terminal that the network function set of wireless access service is provided, and comprises base station (BS) and ASN gateway (ASN GW) among the ASN.The reference model of ASN as shown in Figure 2.ASN mainly provides and the compression of being connected of MSS/SS, RRM, measurement and power control, the data of eating dishes without rice or wine and encryption etc. by BS; And provide agency (proxy) function for the authentication of MSS/SS by ASN GW, support the network of NSP to find and selection function, and provide the L3 information Relay such as IP address assignment function for MSS/SS; ASN can also provide other function such as tunnel management and vision location registration between interior switching, MSS/SS paging and location management such as ASN, ASN-CSN.
CSN is similar to the core net in the mobile communication system, be used to the WiMAX terminal that IP is provided Connection Service, it provides mainly that the IP address assignment, Internet of MSS/SS insert, AAA proxy or server function, also provides authorization control based on the user, ASN to the tunnel of CSN, WiMAX user's charging and the functions such as clearing between the operator.
In the draft of WiMAX about NWG PMIP Inter ASN Mobility, defined at present because the scheme of the mobile triggering Interface R3 migration of MSS/SS if promptly MS S/SS moves, then can trigger the Interface R3 migration between different BS.Its migration situation as shown in Figure 3, ASN GW among this figure and external agent (FA) are same equipment.MSS/S S was arranged in BS1 subordinate's sub-district originally, and MSS/SS is by the agency of the reinforcement among BS1, ASN GW1 and the CSN (HA) alternately, if MSS/SS moves in BS2 subordinate's the sub-district, then this MSS/SS need pass through BS2, ASN GW2 and HA mutual.This shows, the minizone of this MSS/SS switch caused eating dishes without rice or wine switching, the R6 interface between ASN GW and BS switches, and the Interface R3 between HA and FA also moves thereupon.
In above-mentioned migration, moving of MSS/SS may be to cause the active of MSS/SS to be moved because of the user moves; Also may be passive the moving of MSS that causes because of network resource optimization, promptly network switches to other sub-districts based on resource optimization with MSS/SS.In fact, network resource optimization might not cause the minizone of MSS/SS to be switched, that is to say, resource optimization might not change eat dishes without rice or wine and ASN GW and BS between the R6 interface, but resource optimization need change the passage between FA and HA usually, the migration of the Interface R3 between FA and HA promptly occurs.And the present migration scheme that does not have at this situation.
Summary of the invention
In view of this, subject matter to be solved by this invention is to provide a kind of method that realizes the Interface R3 migration based on resource optimization, so that network can be realized the Interface R3 migration based on resource optimization under the situation that not cause the switching of MSS/SS minizone, thereby reach the purpose of resource optimization.
The present invention also provides a kind of system that realizes the Interface R3 migration based on resource optimization simultaneously.
A kind of method that realizes the Interface R3 migration based on resource optimization of the present invention, be applicable to micro-wave access to global intercommunication WiMAX network, the pre-defined R3 handoff request message that is used to ask to move Interface R3, and be used for remigration result's R3 switching response message, this method further may further comprise the steps:
A. resource management RM module is when the QoS according to its other resources management strategy and user/Business Stream guarantees that strategy determines that own resource can not satisfy/guarantee the qos requirement of user/Business Stream, the migration of triggering Interface R3, selected travelling carriage/subscriber station the MSS/SS that moves, and determine that the target external after the migration acts on behalf of the pairing Interface R3 of FA, send the R3 handoff request message that comprises this MSS/SS information and this Interface R3 information to mobile IP customer terminal MIP client module afterwards;
B.MIP client module is after receiving R3 handoff request message, register requirement is sent to reinforcement act on behalf of HA, set up the data path of the Interface R3 that sends based on described request message between this MSS/SS and this HA by HA, and create the context of this data path by HA, the response message that will comprise the contextual information of described data path after the MIP client module sends to the RM module;
After the c.RM module is determined to move successfully according to the response message of receiving, safeguard the data path and the corresponding context of the corresponding Interface R3 of this target FA.
Among the described step a, the selected MSS/SS that moves of described RM module is: determine to need to carry out the MSS/SS of migration, and determine that all the session information among this MSS/SS all need to carry out the Interface R3 migration; The MSS/SS information that comprises in the described R3 handoff request message is: the identification information of MSS/SS;
Described step c further comprises: the RM module discharges and corresponding data path of the corresponding Interface R3 of former FA and contextual information.
Among the described step a, the selected MSS/SS that moves of described RM module is: determine to need to carry out the MSS/SS of migration, and determine that the partial session session among this MSS/SS need carry out the Interface R3 migration; The MSS/SS information that comprises in the described R3 handoff request message is: the identification information of MSS/SS, and the information of this part session;
Described step c further comprises: the information of RM module this part of deletion session from the contextual information of the corresponding data path of the corresponding Interface R3 of former FA.
The information of described session is: the IP address of this session ID, this session and the information of distributing the HA of this IP address.
Among the described step a, the Interface R3 information that comprises in the described R3 handoff request message is: the address information of the target FA after the migration.
Among the described step b, MIP client module further comprises after receiving R3 handoff request message: return the response message that is used to represent to carry out migration process to the RM module.
Among the described step a, described RM module sends R3 handoff request message to MIP client module and is: the RM module sends to MIP client module by inner access service network mobile management Intra ASN MM module with this R3 handoff request message;
Described MIP client module is returned response message to the RM module and is: MIP client module is returned response message by Intra ASN MM module to the RM module.
Among the described step b, interactive messages is transmitted by FA between described MIP client module and the HA.
Described RM module is positioned at gateway equipment, perhaps is positioned at intended gateway equipment, or is positioned at independently equipment.
A kind of system based on the migration of resource optimization realization Interface R3 of the present invention is applicable to the WiMAX network, it is characterized in that this system comprises: RM module, MIP client module and HA module, wherein,
The RM module, be used for determining the MSS/SS of needs migration according to resource optimization, the pairing Interface R3 of target FA after determining to move, and send R3 handoff request message to MIP client module according to determined MSS/SS and Interface R3, and after the response message that returns according to MIP client module confirms to move successfully, safeguard the data path and the corresponding context of the pairing Interface R3 of target FA;
MIP client module is used for sending the register requirement that comprises this MSS/SS information and Interface R3 information to the HA module, and the registration response that the HA module is returned is sent to the RM module;
The HA module, be used for setting up described MSS/SS and the data path of the Interface R3 that sends based on described register requirement between self according to register requirement, create the context of this data path, and the contextual information of the data path set up is sent to MIP client module by the registration response.
Described MIP client module is further used for after receiving R3 handoff request message, returns to the RM module to be used to represent that this module carrying out the response message of migration process.
Further comprise in this system: Intra ASN MM module is used for the message of transfer RM module and MIPclient intermodule.
Further comprise in this system: the FA module is used for the message of transfer HA module and MIP client intermodule.
Described RM module is further used for:
When all session information all needs to carry out the Interface R3 migration in MSS/SS, discharge Interface R3 corresponding data path and the contextual information corresponding with former FA;
When part session informational needs is carried out the Interface R3 migration in MSS/SS, the information of this part of deletion session from the contextual information of the corresponding data path of Interface R3 of former FA correspondence.
The present invention program is by preestablishing R3 handoff request message and R3 switching response message, and by the RM module when definite own resource can not satisfy or guarantee the qos requirement of user/Business Stream, trigger the migration of Interface R3, realized triggering based on resource optimization the migration of Interface R3, having remedied prior art can only carry out carrying out when switch the minizone deficiency that Interface R3 moves at MSS/SS.
In addition, the RM module that triggers the Interface R3 migration can be the RM module in the gateway equipment, also can be the RM module in the intended gateway equipment, can also be the RM module that is independent of in other any one equipment, and promptly the present invention program provides the implementation of multiple triggering migration.
Description of drawings
Fig. 1 is reference model figure end to end in the present WiMAX network;
Fig. 2 is the reference model figure of present ASN;
Fig. 3 is the present design sketch that moves based on the minizone handover trigger Interface R3 of MSS/SS;
Fig. 4 is the present invention program's realization flow figure;
Fig. 5 is the message flow sequential chart of the specific embodiment of the invention;
Fig. 6 is the present invention program's Interface R3 migration effect figure;
Fig. 7 is the present invention program's a system construction drawing.
Embodiment
The present invention program is triggered the interface shift of R3 according to the resource situation of network and user/Business Stream by the RM module.Below in conjunction with drawings and the specific embodiments the present invention program is described in further detail.
The present invention program's realization flow as shown in Figure 4, corresponding following steps:
The RM module that triggers the Interface R3 migration can be the RM module that is positioned at gateway equipment, and promptly the RM module in the gateway triggers the Interface R3 migration when confirming that this gateway can not satisfy the QoS demand of user/Business Stream; Also can be the RM module that is positioned at intended gateway equipment, promptly the RM module in the intended gateway triggers the Interface R3 migration when confirming that current gateway can not satisfy the QoS demand of user/Business Stream.Certainly, this RM module can also be to be arranged in an independent equipment.
The information that comprises this MSS/SS information and determined Interface R3 in this R3_Relocate.request message.
Can also comprise Transaction Identifier in this R3_Relocate.request message, be used for after reciprocal process carry out coupling between the message.
The information of determined Interface R3 is: the address information of the target FA after the migration.
In addition, when RM selectes the MSS/SS that moves, session all among this MSS/SS can be moved, also a part of session among this MSS/SS can be moved.If the previous case, then the MSS/SS information that comprises in the R3_Relocate.request message that the RM module is sent should be the identification information of MSS/SS; If latter event, then this MSS/SS information should be the identification information of MSS/SS, and the information that needs this part session of migration, and session information is generally: the ID of this session, IP address, and the information of distributing the HA of this IP address.
Comprise this MSS/SS information and Interface R3 information in the register requirement that is sent equally.
Owing to also be provided with the FA module usually between HA module and the MIP client module, so this register requirement can be transmitted by the FA module.Similarly, the HA module also can be transmitted by the FA module when returning response message.
In addition, this MIP client module can also be returned the response message that is used to represent to carry out migration process to the RM module after receiving R3_Relocate.request message.This response message specifically can be a R3_Relocate.reply message default in the step 401, but the busy sign need be set in this message, in order to represent the current migration process of carrying out.
If set up successfully, then should carry the contextual information of this data path in this registration reply message; Otherwise, should carry the information of setting up failure in this response message.
Equally, if set up successfully, then should carry the contextual information of this data path in this R3_Relocate.reply message; Otherwise, should carry the information of setting up failure in this R3_Relocate.reply message.
By the maintenance of RM module, after moving successfully, the follow-up data message relevant with this MSS/SS will be forwarded to target ASN GW.
If the RM module is determined all session among the MSS/SS are moved in the step 402, then the RM module can directly discharge corresponding data path of the Interface R3 corresponding with original FA and contextual information in this step; If the part session among the just MSS/SS that the RM module discharges in this step, then the RM module can not directly discharge this data path and context in this step, can only delete the information of this part session from this context.
By above-mentioned flow process, can realize the migration of Interface R3 based on resource optimization.
In addition, in the above-mentioned flow process, the RM module can be direct transmission when R3_Relocate.request message is arrived MIP client module, also can be that this message is sent to Intra ASN MM module, give MIP client module with this forwards by this Intra ASN MM module.Correspondingly, when MIP client module is returned R3_Relocate.reply message, also can carry out transfer by Intra ASN MM module.
Among the present invention program, the message flow sequential that realizes the Interface R3 migration based on the transfer of Intra ASN MM module as shown in Figure 5, wherein, FA and ASN GW are arranged in same equipment, MIP client module and Authenticator are arranged in same equipment.
Be example with the migration situation among Fig. 6 more below, be described that wherein, FA and ASN GW are arranged in same equipment, and all session that set among the MSS/SS all need migration to realize the result who moves based on the present invention program.MSS/SS is connected with the HA module by BS1, ASN GW2 and ASN GW1 at first, promptly needs by R6, R4 and the pairing data path of R3 and HA alternately, and wherein, ASN GW1 is a gateway, is to serve FA.After RM determines that according to resource optimization needs move this MSS/SS, determine that ASN GW2 is an intended gateway, be target FA, therefore,, just the original Interface R3 between ASN GW1 and HA is moved to the Interface R3 between ASN GW2 and HA based on the present invention program.This shows,, stopped the data forwarding of Interface R4 among Fig. 6, be redirected Interface R3, optimized professional transmission route, and the load of network is adjusted based on the present invention program.
RM module among the present invention, MIP client module and HA module have constituted the system that realizes the Interface R3 migration based on resource optimization, and this system configuration as shown in Figure 7.The function that each module realizes is now done simple the description to the function that this several module realized as previously mentioned again:
The RM module, be used for determining the MSS/SS of needs migration according to resource optimization, the pairing Interface R3 of target FA after determining to move, and send R3 handoff request message to MIP client module according to determined MSS/SS and Interface R3, and after the response message that returns according to MIP client module confirms to move successfully, safeguard pairing Interface R3 of intended gateway and corresponding context.The RM module can also be further used for: when all session information all needs to carry out the Interface R3 migration in MSS/SS, discharge corresponding data path of Interface R3 and contextual information with former FA; When part session informational needs is carried out the Interface R3 migration in MSS/SS, the information of this part of deletion session from the contextual information of the corresponding data path of Interface R3 of former FA.
MIP client module is used for sending the register requirement that comprises this MSS/SS information and Interface R3 information to the HA module, and the registration response that the HA module is returned is sent to the RM module.MIP client module can also be further used for after receiving R3 handoff request message, returns to the RM module to be used to represent that this module carrying out the response message of migration process.
The HA module, be used for setting up the data path of the Interface R3 that sends based on described register requirement between described MSS/SS and the HA according to register requirement, create the context of this data path, and the contextual information of the data path set up is sent to MIP client module by the registration response.
Can further include in this system: Intra ASN MM module is used for the message of transfer RM module and MIP client intermodule.Can further include: the FA module is used for the message of transfer HA module and MIP client intermodule.
The above only is the present invention program's preferred embodiment, not in order to limit protection scope of the present invention.
Claims (14)
1, a kind of method that realizes the Interface R3 migration based on resource optimization, be applicable to micro-wave access to global intercommunication WiMAX network, it is characterized in that, the pre-defined R3 handoff request message that is used to ask to move Interface R3, and be used for remigration result's R3 switching response message, this method further may further comprise the steps:
A. resource management RM module is when the QoS according to its other resources management strategy and user/Business Stream guarantees that strategy determines that own resource can not satisfy/guarantee the qos requirement of user/Business Stream, the migration of triggering Interface R3, selected travelling carriage/subscriber station the MSS/SS that moves, and determine that the target external after the migration acts on behalf of the pairing Interface R3 of FA, send the R3 handoff request message that comprises this MSS/SS information and this Interface R3 information to mobile IP customer terminal MIP client module afterwards;
B.MIP client module is after receiving R3 handoff request message, register requirement is sent to reinforcement act on behalf of HA, set up the data path of the Interface R3 that sends based on described request message between this MSS/SS and this HA by HA, and create the context of this data path by HA, the response message that will comprise the contextual information of described data path after the MIP client module sends to the RM module;
After the c.RM module is determined to move successfully according to the response message of receiving, safeguard the data path and the corresponding context of the corresponding Interface R3 of this target FA.
2, method according to claim 1, it is characterized in that among the described step a, the selected MSS/SS that moves of described RM module is: determine to need to carry out the MSS/SS of migration, and determine that all the session information among this MSS/SS all need to carry out the Interface R3 migration; The MSS/SS information that comprises in the described R3 handoff request message is: the identification information of MSS/SS;
Described step c further comprises: the RM module discharges and corresponding data path of the corresponding Interface R3 of former FA and contextual information.
3, method according to claim 1, it is characterized in that among the described step a, the selected MSS/SS that moves of described RM module is: determine to need to carry out the MSS/SS of migration, and determine that the partial session session among this MSS/SS need carry out the Interface R3 migration; The MSS/SS information that comprises in the described R3 handoff request message is: the identification information of MSS/SS, and the information of this part session;
Described step c further comprises: the information of RM module this part of deletion session from the contextual information of the corresponding data path of the corresponding Interface R3 of former FA.
4, method according to claim 3 is characterized in that, the information of described session is: the IP address of this session ID, this session and the information of distributing the HA of this IP address.
5, method according to claim 1 is characterized in that among the described step a, and the Interface R3 information that comprises in the described R3 handoff request message is: the address information of the target FA after the migration.
6, method according to claim 1 is characterized in that among the described step b, and MIP client module further comprises after receiving R3 handoff request message: return the response message that is used to represent to carry out migration process to the RM module.
7, according to claim 1 or 6 described methods, it is characterized in that among the described step a that described RM module sends R3 handoff request message to MIP client module and is: the RM module sends to MIP client module by inner access service network mobile management Intra ASN MM module with this R3 handoff request message;
Described MIP client module is returned response message to the RM module and is: MIP client module is returned response message by IntraASN MM module to the RM module.
8, method according to claim 1 is characterized in that among the described step b that interactive messages is transmitted by FA between described MIP client module and the HA.
9, method according to claim 1 is characterized in that, described RM module is positioned at gateway equipment, perhaps is positioned at intended gateway equipment, or is positioned at independently equipment.
10, a kind of system based on the migration of resource optimization realization Interface R3 is applicable to the WiMAX network, it is characterized in that this system comprises: RM module, MIP client module and HA module, wherein,
The RM module, be used for determining the MSS/SS of needs migration according to resource optimization, the pairing Interface R3 of target FA after determining to move, and send R3 handoff request message to MIP client module according to determined MSS/SS and Interface R3, and after the response message that returns according to MIP client module confirms to move successfully, safeguard the data path and the corresponding context of the pairing Interface R3 of target FA;
MIP client module is used for sending the register requirement that comprises this MSS/SS information and Interface R3 information to the HA module, and the registration response that the HA module is returned is sent to the RM module;
The HA module, be used for setting up described MSS/SS and the data path of the Interface R3 that sends based on described register requirement between self according to register requirement, create the context of this data path, and the contextual information of the data path set up is sent to MIP client module by the registration response.
11, system according to claim 10 is characterized in that, described MIP client module is further used for after receiving R3 handoff request message, returns to the RM module to be used to represent that this module carrying out the response message of migration process.
12, according to claim 10 or 11 described systems, it is characterized in that, further comprise in this system: Intra ASN MM module is used for the message of transfer RM module and MIP client intermodule.
13, system according to claim 10 is characterized in that, further comprises in this system: the FA module is used for the message of transfer HA module and MIP client intermodule.
14, system according to claim 10 is characterized in that, described RM module is further used for:
When all session information all needs to carry out the Interface R3 migration in MSS/SS, discharge Interface R3 corresponding data path and the contextual information corresponding with former FA;
When part session informational needs is carried out the Interface R3 migration in MSS/SS, the information of this part of deletion session from the contextual information of the corresponding data path of Interface R3 of former FA correspondence.
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| PCT/CN2006/001620 WO2007006224A1 (en) | 2005-07-09 | 2006-07-10 | A method and system for realizing the r3 interface relocation |
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| CN100450291C (en) * | 2005-07-11 | 2009-01-07 | 华为技术有限公司 | A method of establishing an interface link |
| CN101106491A (en) * | 2006-07-11 | 2008-01-16 | 华为技术有限公司 | Migration method and system of R3 interface in microwave access global interworking network |
| WO2008101446A1 (en) * | 2007-02-20 | 2008-08-28 | Huawei Technologies Co., Ltd. | Method and system for wimax foreign agent relocation with authorization token |
| CN101222767B (en) * | 2008-01-23 | 2011-01-05 | 中兴通讯股份有限公司 | Stream-based service quality implementing method and system for mobile IP service |
| CN101784072B (en) * | 2009-01-16 | 2012-07-04 | 华为技术有限公司 | Method, device and system for detecting unobstructed property of data channels |
| CN102196503B (en) * | 2011-06-28 | 2014-04-16 | 哈尔滨工程大学 | Service quality assurance oriented cognitive network service migration method |
| CN112190951B (en) * | 2020-10-28 | 2024-02-09 | 网易（杭州）网络有限公司 | Method, device, equipment and storage medium for migrating operation data |
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| WO2000054523A1 (en) * | 1999-03-09 | 2000-09-14 | Nokia Networks Oy | Ip routing optimization in an access network |
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| EP1202591A2 (en) * | 2000-10-26 | 2002-05-02 | Samsung Electronics Co., Ltd. | Handover method for mobile station having mobile IP address in mobile communication system |
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| WO2007006224A1 (en) | 2007-01-18 |
| CN1794869A (en) | 2006-06-28 |
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