CN101304603B - Method for distributing mobile IP user tactics information - Google Patents
Method for distributing mobile IP user tactics information Download PDFInfo
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- CN101304603B CN101304603B CN2007101043964A CN200710104396A CN101304603B CN 101304603 B CN101304603 B CN 101304603B CN 2007101043964 A CN2007101043964 A CN 2007101043964A CN 200710104396 A CN200710104396 A CN 200710104396A CN 101304603 B CN101304603 B CN 101304603B
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- policy information
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Abstract
The invention discloses a distribution method of strategic information of a mobile IP user, the strategic information is distributed to an access server by strategic control points and mobile agent nodes, comprising the steps that: the strategic control points firstly distribute the strategic information to the mobile agent nodes when in access of a terminal of the mobile IP user; and then the mobile agent nodes distribute the received strategic information to the access server by registering a response message. When in access and switch of the terminal of the mobile IP user of the invention, the mobile agent nodes directly distribute the obtained strategic information to the access server by carrying out the response to a registration request to the access server, reduce the steps of carrying out the interaction to obtain the strategic information between the access server and the strategic control points, shorten the time delay and improve the access and switch efficiency.
Description
Technical field
The present invention relates to the policy information of mobile IP user, relate in particular to a kind of distribution method of mobile IP user tactics information.
Background technology
In the prior art, for high-speed real-time multi-media packet data business is provided, cordless communication network need provide QoS service end to end.In order to make mobile IP user use the business that satisfies certain service quality effectively, QoS corresponding strategies such as (service quality) need in time be distributed to network entities such as wireless network node, IAD, realizes that the service quality of wireless communication system business data flow is handled and assurance.Policy information comprises quality of service information and charge information etc., and its distribution is finished the distribution of cordless communication network policy information by wireless network node, IAD, mobile agent node, the common cooperation of policy control point.
Fig. 1 shows and realizes the architectural framework schematic diagram that the mobile IP user terminal inserts and switches in the prior art.The mobile IP user terminal links to each other with access server by wireless network node, and access server, link to each other with Authentication Authorization server 15 and to carry out the mutual of authorization message etc., link to each other with policy control point 11 and to carry out the mutual of policy information etc., link to each other with mobile agent node 13 and to carry out the mutual of log-on message etc., also link to each other with Internet/Intranet carry out business etc. alternately.Wireless network node wherein and access server when the mobile IP user terminal is switched, can be divided into source radio network node 12, target network node 16 and source access server 14, target access server 17.Terminal is before spanning into server and switching, by interactive media message between source radio network node 12 and the source access server 14; After switching, by interactive media message between the target radio network node 16 of switch and the target access server 17.Authentication, authorization server 15 provide the function of IP entitlement, mandate for access server.Policy control point 11 is source access server 14 and target access server 17 distribution services quality and charging policy information, guarantees for application provides corresponding strategy.Mobile agent node 13 also provides the mobile management solution by source access server 14 and target access server 17 for the mobile IP user terminal, especially manages the mobility operation between the different access technologies.
Fig. 2 shows the access process of mobile IP user terminal when the access to wireless communication network in the prior art, comprises the steps:
Step 201: the connection of terminal initiation packet data, services is set up, by setting up session between wireless network node and the access server;
Step 202: access server sends login request message, request registration to the mobile agent node;
Step 203: mobile agent node mutual by with authentication, authorization server, carry out service authentication and mandate;
Step 204: after obtaining the authorization, the mobile agent node sends the request message that requires acquisition strategy information to policy control point;
Step 205: policy control point transmits policy information to the mobile agent node;
Step 206: the mobile agent node feeds back registration reply message to access server;
Step 207: access server sends the request message that requires acquisition strategy information to policy control point again;
Step 208: the policy control policy informations such as service quality and charging of naming a person for a particular job return to access server;
Step 209: access server sends to wireless network node with policy information;
Step 210: after finishing access, it is mutual that terminal and access server carry out the data flow of IP message.
It can be seen from the above, after the mobile agent node acquisition strategy information, directly policy informations such as service quality and charging are not sent to access server, but after the register requirement of access server responded, by access server again to policy control point acquisition request policy information.When therefore inserting, if by the registration response policy information is sent to access server, so aforesaid step 207 and step 208 just can be omitted.
Based on architectural framework shown in Figure 1, the distribution flow of service quality and charging policy information when Fig. 3 shows cordless communication network in the prior art and spans into server and switch, its concrete steps are briefly described as follows:
Step 301: before the switching, terminal is mutual by the data flow that source radio network node and source access server carry out the IP message;
Step 302: when switching, terminal is by setting up new session between target radio network and the target access server;
Step 303: target access server sends register requirement to the mobile agent node, desires to register;
Step 304: move agent node during owing to access and obtained authorization message and policy information respectively by authentication, authorization server and policy control point, moving agent node when therefore switching no longer needs to carry out the mutual of authorization message with authentication, authorization server, also no longer needs to carry out the mutual of policy information with the policy control point; So the mobile agent node directly feeds back the registration response;
Step 305: target access server is to policy control point request service quality and charging policy information;
Step 306: the policy control policy information of naming a person for a particular job feeds back to target access server;
Step 307: target access server sends to target radio network node with the policy information that receives;
Step 308: terminal is finished the switching to target access server;
Step 309: switch finish after, it is mutual that terminal and target access server carry out the data flow of IP message.
In the above-mentioned flow process, the mobile IP user terminal is when switching, and target access server and policy control point need carry out alternately with acquisition strategy information, also are aforesaid step 305 and step 306, have in fact also caused the growth of handover delay.
In addition, to striding the switching of different access technologies, directly carry out information interaction between the access server, difficulty is big, be not easy to realize.
Summary of the invention
Technical problem to be solved by this invention is the distribution method that is to provide a kind of mobile IP user tactics information, when inserting in order to the terminal network that improves mobile IP user and the efficient when spanning into server and switching.
In order to solve the problems of the technologies described above, the invention provides a kind of distribution method of mobile IP user tactics information, by policy control point and mobile agent node described policy information is distributed to access server, comprise the steps:
(a) terminal of described mobile IP user is when inserting, and the described policy control described policy information of naming a person for a particular job is distributed to described mobile agent node;
(b) the described mobile agent node described policy information that will receive is distributed to described access server by registration reply message.
According to said method, wherein, described policy information can comprise quality of service information and charge information.
According to said method, may further include step:
(c) described access server sends to wireless network node with described policy information.
According to said method, wherein, step (a) can comprise:
(a1) described access server sends register requirement to described mobile agent node;
(a2) described mobile agent node obtains and authorizes the back to described policy control point request strategy information;
(a3) the described policy control described policy information of naming a person for a particular job is distributed to described mobile agent node.
According to said method, wherein, registration reply message described in the step (b) can comprise the response of login request message when described terminal inserted.
According to said method, wherein, registration reply message described in the step (b) can comprise the response of described terminal being striden the described access server login request message when switching.
According to said method, wherein, described step (b) can comprise: described terminal is striden described access server when switching, and after described mobile agent node request registration, described mobile agent node carries described policy information in described registration reply message at target access server.Further, can comprise step:
(c ') described target access server is sent to target radio network node with described policy information;
(d ') described terminal is finished the switching to described target access server.
Compared with prior art, the present invention moves the response of agent node by register requirement during by the mobile IP user accessing terminal to network policy information is sent to access server, and terminal is when spanning into the server switching, also the response message by register requirement is sent to target access server with policy information, thereby when terminal inserts and switch, all need not carry out the mutual of policy information with the policy control point again, but get final product direct acquisition strategy information by the registration response, thereby shortened the step of flow process, reduce access and time delay for switching, improved the efficient that inserts and switch.
Description of drawings
Fig. 1 is that mobile IP user inserts and the architectural framework embodiment schematic diagram when switching in the prior art;
Fig. 2 is the distribution embodiment schematic flow sheet of policy information during the mobile IP user accessing terminal to network in the prior art;
Fig. 3 is the distribution embodiment schematic flow sheet of policy information when the mobile IP user terminal spans into the server switching in the prior art;
Fig. 4 is the inventive method embodiment schematic flow sheet;
Fig. 5 is the distribution embodiment schematic flow sheet of mobile IP user terminal of the present invention policy information when inserting;
Fig. 6 is the distribution embodiment schematic flow sheet of mobile IP user terminal of the present invention policy information when spanning into server and switching;
Fig. 7 is that mobile IP user terminal of the present invention spans into the embodiment schematic flow sheet that server switches from being linked into.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Therefore thinking of the present invention is, the mobile IP user terminal is when the access to wireless communication network, access server is sending login request message to the mobile agent node, the mobile agent node is from policy control point acquisition strategy information and after preserving, response by to register requirement is sent to access server with policy information; During switching, also be policy information to be sent to target access server by the registration response.So just saved when inserting access server to the step of policy control point acquisition strategy information, and target access server has improved the efficient of access and switching to the step of policy control point acquisition strategy information when switching.
Based on above-mentioned thinking, the inventive method comprises the steps:
Step 401: the terminal of mobile IP user is when inserting, and the policy control policy information of naming a person for a particular job is distributed to the mobile agent node;
Step 402: the mobile agent node is distributed to access server with the policy information that receives by the response message to register requirement.
Wherein, the registration reply message in the step 402 both can comprise the response of login request message when terminal inserted, and also can comprise the response of the login request message when terminal spanned into server and switch.
The flow process of the distribution embodiment of policy information when Fig. 5 shows mobile IP user terminal of the present invention and inserts, its concrete steps are as follows:
Step 501: the connection of terminal initiation packet data, services is set up, and sets up session between the access server;
Step 502: access server sends login request message, request registration to the mobile agent node;
Step 503: mobile agent node mutual by with authentication, authorization server, carry out service authentication;
Step 504: after authentication, the mobile agent node is to policy control point request service quality and charging policy information;
Step 505: name a person for a particular job service quality and charging policy feedback information of policy control given the mobile agent node;
Step 506: the mobile agent node carries service quality and the charging policy information of being obtained to access server feedback registration response in this registration response; The mobile agent node is also preserved the service quality and the charging policy information that get access to, is convenient to directly transmit to target access server when terminal is switched;
Step 507: access server sends to wireless network node with service quality and charging policy information;
Step 508: it is mutual that terminal and access server carry out the data flow of IP message.
The distribution method of policy information during based on above-mentioned mobile IP user terminal access to wireless communication network, the mobile IP user terminal is when spanning into the server switching, target access server after mobile agent node request registration, service quality and charging policy information that the mobile agent node obtains before carrying in the registration reply message of feedback.Compared with prior art, do not need to carry out the mutual of policy information with the policy control point again.
The flow process of the distribution embodiment of policy information when Fig. 6 shows mobile IP user terminal of the present invention and spans into server and switch, its concrete steps are as follows:
Step 601: terminal is mutual by the data flow that source radio network node and source access server carry out the IP message before switching;
Step 602: when switching, set up new session between the target access server of terminal and desire incision;
Step 603: target access server sends login request message, request registration to the mobile agent node;
Step 604: the mobile agent node feeds back this login request message to target access server, sends the registration response, carries all service quality and the charging policy information relevant with the source access server of its preservation in this registration response;
Step 605: target access server sends to target radio network node with service quality and the charging policy information of receiving;
Step 606: service quality that terminal receives according to wireless network node and charging policy information are finished the switching to target access server;
Step 607: the data flow of carrying out the IP message after switching is finished between terminal and the target access server is mutual.
From above-mentioned flow process, can find out, the policy information that the mobile agent node is preserved when terminal inserts, by response message to the login request message of target access server, directly be sent to target access server, therefore target access server does not need to carry out the mutual of policy information with the policy control point again in handoff procedure.Compare with prior art shown in Figure 3, omitted step 305 and step 306 wherein, therefore reduced handover delay, improved user's switching efficiency.
Like this, as shown in Figure 7, the mobile IP user terminal to spanning into the step that server switches, comprising from be linked into network:
Step 701: when mobile IP user terminal desire will be linked in the network, the mobile agent node receives the register requirement that the mobile IP user terminal sends by access server, and after obtaining the mandate of authentication, authorization server, by carry out alternately the service quality and the charging policy information of the distribution of acquisition strategy control point with the policy control point;
Step 702: the mobile agent node sends to access server with service quality and the charging policy information that obtains by registration reply message;
Step 703: when the mobile IP user terminal spanned into the server switching, the target access server of mobile IP user terminal institute desire incision sent register requirement to the mobile agent node;
Step 704: the mobile agent node sends to target access server with the policy information of being preserved by the registration response.
Because the mobile IP user terminal is when access network, policy information just is distributed to mobile agent node place and preserves, and be sent to target access server by response to login request message, therefore it is quicker, convenient and flexible to make that terminal spans into the switching of server, has improved the efficient of switching.
When the mobile IP user terminal spanned into the server switching among the present invention, target access server did not need to carry out the mutual of policy information with the policy control point, directly obtains the policy information of being preserved from the mobile agent node.The present invention can realize in cordless communication network and the evolvement network thereof mobile IP user terminal handed over service demand fast, has promoted user's switching efficiency from the practical application angle.In addition, the present invention is also very little to the change and the influence of existing system, has not only reduced the complexity of system design and realization, and has improved the performance of handoffs when terminal spans into the server switching.
The distribution of policy information was not limited in same access technology when the mobile IP user terminal spanned into the server switching among the present invention.Also promptly for different access technologies, during switching of striding the different access networks access server of the present invention, the distribution of policy information stands good.And for the switching of striding different access technologies, effect is more obvious.
User's access in the foregoing description and switching flow can also be applied to adopt other similar system except that wireless communication system.When being applied to other system, the message of employing may be not necessarily identical, but the logical relation in its flow process is identical.Therefore; the distribution of policy information during accessing terminal to network proposed by the invention; and the distribution of terminal policy information when spanning into server and switching; except that can be applicable to above-mentionedly to be used to specify the cordless communication network of the present invention; be applied to other networks following times, also should belong within the scope that claim of the present invention protects.
Claims (8)
1. the distribution method of a mobile IP user tactics information is distributed to access server by policy control point and mobile agent node with described policy information, it is characterized in that, comprises the steps:
(a) terminal of described mobile IP user is when inserting, and the described policy control described policy information of naming a person for a particular job is distributed to described mobile agent node;
(b) the described mobile agent node described policy information that will receive is distributed to described access server by registration reply message.
2. the method for claim 1 is characterized in that, described policy information comprises quality of service information and charge information.
3. the method for claim 1 is characterized in that, further comprises step:
(c) described access server sends to wireless network node with described policy information.
4. the method for claim 1 is characterized in that, step (a) comprising:
(a1) described access server sends register requirement to described mobile agent node;
(a2) described mobile agent node obtains and authorizes the back to described policy control point request strategy information;
(a3) the described policy control described policy information of naming a person for a particular job is distributed to described mobile agent node.
5. the method for claim 1 is characterized in that, registration reply message described in the step (b) comprises the response of login request message when described terminal inserted.
6. the method for claim 1 is characterized in that, registration reply message described in the step (b) comprises the response of described terminal being striden the described access server login request message when switching.
7. the method for claim 1, it is characterized in that, described step (b) comprising: described terminal is striden described access server when switching, after described mobile agent node request registration, described mobile agent node carries described policy information in described registration reply message at target access server.
8. method as claimed in claim 7 is characterized in that, further comprises step:
(c ') described target access server is sent to target radio network node with described policy information;
(d ') described terminal is finished the switching to described target access server.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101043964A CN101304603B (en) | 2007-05-11 | 2007-05-11 | Method for distributing mobile IP user tactics information |
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| CN2007101043964A CN101304603B (en) | 2007-05-11 | 2007-05-11 | Method for distributing mobile IP user tactics information |
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| CN101304603A CN101304603A (en) | 2008-11-12 |
| CN101304603B true CN101304603B (en) | 2011-08-10 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1362819A (en) * | 2000-12-26 | 2002-08-07 | Lg电子株式会社 | Mobile network agreenment business system and method |
| CN1726689A (en) * | 2002-12-16 | 2006-01-25 | 思科技术公司 | Inter-proxy communication protocol for mobile IP |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1362819A (en) * | 2000-12-26 | 2002-08-07 | Lg电子株式会社 | Mobile network agreenment business system and method |
| CN1726689A (en) * | 2002-12-16 | 2006-01-25 | 思科技术公司 | Inter-proxy communication protocol for mobile IP |
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Granted publication date: 20110810 Termination date: 20170511 |