CN1635750A - A method of mobility management in mobile communication system - Google Patents
A method of mobility management in mobile communication system Download PDFInfo
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Abstract
This invention refers to communication technology field, especially a mobile management method for mobile communication system adopting IP technology, which contains 1, broadcasting mark message, 2, judging whether it crosses over the LAN, 3, quick IP address distribution, 4, redirection. Said invention overcomes the shortage in mobile IP technology
Description
Technical field
The present invention relates to the mobile communication technology field, particularly adopt the mobility management method of the mobile communication system of IP technology.
Background technology
The mobile management technology is a vital technology in the mobile communication system.Used mobile management technology all can only be used for the system of circuit exchange mode in the mobile communication system such as GSM, CDMA, 3G, keep the unbroken technology of communication to have only mobile IP technology in the time of can making the IP terminal in moving process, change route at present, keep continuity to design when it moves for the Internet nodes.Its key character comprises: one, node adopts public ip address; Two, adopt tunneling technique, promptly IP is carried out the IP encapsulation.As a kind of current techique under the internet environment, these features are essential.Yet these features also make mobile IP technology have some defectives, and these defectives are fatal for the mobile communication system with VoIP (based on IP means transporting speech) business.The major defect of mobile IP technology comprises:
Because node (being user terminal) adopts public ip address, and the IP number of addresses that Ipv4 (IP protocol edition 4) can provide is very limited, the number of users that causes system to support is very limited, can't satisfy the demand.
Because adopt public ip address, user terminal is directly exposed on the internet, be easy to be subjected to the infection of virus.Under internet environment, user terminal mainly is a computer, can remedy software vulnerability by the method for software upgrading or patch installing, improves the ability of anti-virus by special anti-virus software is installed.Even infected virus, also can use the antivirus software kill virus.Yet for the voip user's terminal based on mobile phone, above measure all can't be adopted.In case by virus infections, mobile phone just may be scrapped.Promptly allow to repair, its cost is also very big.
Because adopt public ip address, user terminal is directly exposed on the internet, is easy to be subjected to hacker's attack.Resist hacker's attack even take safety measures, the cost of being paid is also bigger.
Because user terminal adopts public ip address, each user can random access or is used Internet resources, can release news, provide professional on network arbitrarily, and this makes the manageability extreme difference of network.This point is not a problem for internet free, that any service quality guarantee is not provided, but is very serious problem for the commercial operation network.
Existing operating system is not supported tunneling technique, wants to realize mobile IP, the bottom of necessary retouching operation system, and work difficulty is very big.
The needs of mobile communication system that the present invention is directed to the employing IP technology of commercial operation have proposed a kind of motion management method, have overcome the above defective of mobile IP technology fully.
Summary of the invention
The network that inventive method is relied on logically is divided into two-layer.Lower one deck is a local area network (LAN), and higher one deck is a wide area network.Local area network (LAN) is connected on the wide area network by its inner acting server.Can connect many local area network (LAN)s under the wide area network.
The equipment relevant with mobile management has acting server, base station and wireless terminal in the local area network (LAN).An acting server is arranged in each local area network (LAN), and its function is to be responsible for calling control, IP address assignment and the mobile management of all terminals in the local area network (LAN).One of acting server terminates on the local area network (LAN), and the other end is connected on the metropolitan area network.
One or more base stations are arranged in each local area network (LAN), and its function is with the wireless terminal access to LAN.One end of base station is connected on the local area network (LAN) in wired mode, and the other end is connected with wireless terminal with wireless mode.
One or more wireless terminals are arranged in each local area network (LAN).When wireless terminal is telex network the equipment that directly uses, be connected on the base station by wireless mode.
Use implicit IP address in the local area network (LAN).Each local area network (LAN) uses an implicit IP address space.LAN can use identical IP address space, also can use different IP address spaces.The local area network side of acting server uses fixing implicit IP address.A semipermanent implicit IP address is used in each base station.The terminal of each start in the local area network (LAN) is used an interim implicit IP address.When mobile, its interim implicit IP address is constant between the different base station of same local area network (LAN) for terminal.
There is not the equipment directly related on the wide area network with mobile management.In the process of mobile management, wide area network only plays the effect of transmission channel.In wide area network, use wide area network IP address.When wide area network was public network, wide area network IP address was exactly a public ip address.When wide area network was private network, wide area network IP address was the private IP address in the wide area network.The wide area network side of acting server is used fixing wide area network IP address.
Inventive method is used implicit IP address, has solved that mobile IP technology is not enough because of the IP number of addresses of using public ip address to cause, easily infected virus, vulnerable, network be difficult to defectives such as management.
Inventive method is switched based on the calling of the redirection function realization terminal of SIP (Session initiation Protocol), realizes mobile management by application program, is easy to realize, has solved the realization difficulty great defective of mobile IP technology because of adopting tunneling technique to cause.
The step of inventive method is as follows:
The first step, the broadcast identification message.The invention enables the characteristic parameter of acting server, comprise MAC Address, implicit IP address, identification code or public ip address, be broadcast to each base station in the local area network (LAN) oneself.Its characteristic parameter also can initiatively be inquired about to acting server in the base station.The invention enables the base station that the characteristic parameter of acting server is received, form the sign message, preservation is got up.The invention enables the base station regularly to wireless terminal broadcast identification message.
In second step, judge whether to cross over local area network (LAN).The invention enables terminal to receive the sign message, the characteristic parameter of the characteristic parameter of acting server wherein with the acting server of oneself preservation compared.If comparative result is identical, then think and do not cross over local area network (LAN), do not carry out the mobile management operation.If comparative result is different, then think and crossed over local area network (LAN), preserve the characteristic parameter of new acting server, check whether oneself is in communications status.If be not in communications status, then do not carry out the mobile management operation.If be in communications status, then begin the mobile management operation.
In the 3rd step, IP distributes the address fast.The invention enables terminal to send out the quick request for allocation in IP address to acting server.The invention enables acting server to distribute an IP address fast for terminal according to the IP address management agreement.
In the 4th step, be redirected.Redirection process is the route of the terminal (claiming switching terminal later on) that will switch changes to its current place local area network (LAN) (claiming new local area network (LAN) later on) from its local area network (LAN) (claiming former local area network (LAN) later on) that switches preceding place a process.Redirect request is initiated by switching terminal, and the acting server of the local area network (LAN) at place (claiming initial local area network (LAN) later on), the acting server of new local area network (LAN) and the acting server of former local area network (LAN) were finished jointly when redirection process was begun this time to communicate by letter by switching terminal.
After redirection process was finished, handoff procedure was just all finished.
The present invention has comprised fast switch over method, and its step is as follows:
After the first step, the acting server of new local area network (LAN) are received the redirect request that switching terminal sends, at first redirect request is transmitted to the acting server of initial local area network (LAN), and then to the family application for registration of registrar hair.
Second step, after the acting server of initial local area network (LAN) received that the acting server of new local area network (LAN) is transmitted next redirect request, the MD5 answer code that MD5 (message digest algorithm) answer code that is generated when terminal is registered on it for the last time and terminal send in the redirect request message compared.If comparative result is identical, then send out and be redirected approval, carry out redirect operation.If comparative result is different, then sends out and be redirected refusal.
In the 3rd step, the acting server of new local area network (LAN) is waited for the authentication result to user identity.If the user is legal, then sends out to be redirected and confirm to the acting server of initial local area network (LAN).If the user is illegal, then sends out to be redirected and cancel, and the resource that this time signal post takies is discharged to the acting server of initial local area network (LAN).
In the 4th step, the acting server of initial local area network (LAN) is sent out the signaling that clears data to the acting server of former local area network (LAN) after receiving and being redirected affirmation.After the acting server of initial local area network (LAN) was received redirected cancelling, the route that will change in redirect operation reverted to original route again.
In the 5th step, after the acting server of former local area network (LAN) was received the signaling that clears data, the resource that this time signal post is taken discharged.
Description of drawings
Fig. 1 is the building-block of logic of the network that relies on of inventive method.
Fig. 2 is the composition diagram of the local area network (LAN) that relies on of inventive method.
Fig. 3 is the flow chart of inventive method.
The redirection process figure that Fig. 4 is a switching terminal when initial local area network (LAN) moves to new local area network (LAN).
The redirection process figure that Fig. 5 is a switching terminal when a non-initial local area network (LAN) moves to another non-initial local area network (LAN).
The redirection process figure that Fig. 6 is a switching terminal when non-initial local area network (LAN) moves back to initial local area network (LAN).
Embodiment
The logical construction of the network that inventive method is relied on as shown in Figure 1.Whole network is by wide area network 11 and 12 two-layer compositions of local area network (LAN).Local area network (LAN) 12 is connected on the wide area network 11 by its inner acting server.Can connect a plurality of local area network (LAN)s 12 below the wide area network 11.
In wide area network 11, use the IP address of wide area network.If wide area network is a public network, employed is exactly public ip address.If wide area network is a private network, employed is exactly the interior private IP address of private network.
In the local area network (LAN) in the network that inventive method is relied on the equipment relevant with mobile management as shown in Figure 2, it is the detailed description to local area network (LAN) among Fig. 1.Local area network (LAN) is made up of lan device 21, acting server 22, base station 23 and wireless terminal 24.An acting server 22 is arranged in each local area network (LAN), and its function is to be responsible for calling control, IP address assignment and the mobile management of all terminals in the local area network (LAN).One or more base stations 23 are arranged in each local area network (LAN), and its function is with the wireless terminal access to LAN.One or more wireless terminals 24 are arranged in each local area network (LAN), when it is telex network the equipment that directly uses.
One of acting server 22 terminates on the lan device, and the other end is connected on the metropolitan area network.One end of base station 23 is connected on the local area network (LAN) in wired mode, and the other end is connected with wireless terminal with wireless mode.Wireless terminal 24 is connected on the base station with wireless mode.
Use implicit IP address in the local area network (LAN).Each local area network (LAN) uses an implicit IP address space.LAN can use identical IP address space, also can use different IP address spaces.The local area network side of acting server 22 uses fixing implicit IP address.A semi-permanent interim implicit IP address is used in each base station.The wireless terminal 24 of each start in the local area network (LAN) uses an interim implicit IP address.When mobile, its interim implicit IP address is constant between the different base station of same local area network (LAN) for wireless terminal 24.
The workflow of inventive method as shown in Figure 3.After system starts working, at first forward S302 to from step S301, acting server comprises MAC Address, implicit IP address, identification code or public ip address with the characteristic parameter of oneself, is broadcast to each base station in the local area network (LAN).The base station also can be initiatively to acting server query characteristics parameter.The base station forwards S303 to after receiving the characteristic parameter of acting server, forms the sign message, and preservation is got up, and regularly to wireless terminal broadcast identification message.In S304, terminal detects the sign message, receive the sign message after, forward S305 to, judge whether to have crossed over local area network (LAN).Terminal compares the characteristic parameter of the characteristic parameter of the acting server in the sign message that has just received with the acting server of oneself preserving.If comparative result is identical, then thinks and do not cross over local area network (LAN).If comparative result is different, then thinks and crossed over local area network (LAN), and preserve the characteristic parameter of new acting server.If do not cross over local area network (LAN), then return S303.If crossed over local area network (LAN), then forward S306 to, whether the terminal inspection oneself be in communications status.If terminal is not in communications status, then forward S309 to, terminal is to system application IP address, and system gives IP address of terminal distribution.Return S303 then.If terminal is in communications status, then forward S307 to, terminal is to the quick distributing IP of system's application address.System forwards S308 to after giving terminal distribution IP address fast, and terminal is sent out redirect request to system, and system changes to current local area network (LAN) with the communication route of terminal from original local area network (LAN).Return S303 then.
The redirection process of a terminal (being called switching terminal) when initial local area network (LAN) moves to new local area network (LAN) as shown in Figure 4 in the inventive method.This is the detailed description of one of the applicable cases of redirection process among Fig. 3.
Before switching terminal 405 moved to new local area network (LAN), calling procedure or communication process began.Switching terminal 405 has begun to communicate by letter with another terminal (being distant terminal 401).Signaling data between them and media data are transmitted by acting server separately.Distant terminal 401 hair family side datas 406 are to the acting server 402 of the other side's local area network (LAN).The acting server 402 of the other side's local area network (LAN) is transformed into network side data 407 with user side data 406, issues the acting server 403 of initial local area network (LAN).The acting server 403 of initial local area network (LAN) is transformed into user side data 408 with network side data 407, issues switching terminal 405.Switching terminal 405 is issued the data of distant terminal 401 according to transmitting with top opposite mode.
After switching terminal 405 moves to new local area network (LAN) and obtains new IP address, to 404 redirect request 409 of acting server of new local area network (LAN).After the acting server 404 of new local area network (LAN) is received redirect request 409, on the one hand to 405 confirmation of receipt signals 410 of switching terminal, on the other hand redirect request is transmitted to the acting server 403 of initial local area network (LAN), forward signal is 411.
After the acting server 403 of initial local area network (LAN) was received redirect request, the MD5 answer code that MD5 answer code that is generated when terminal is registered on it for the last time and terminal send in the redirect request message compared.If the comparative result of MD5 answer code is identical, then 404 of acting servers to new local area network (LAN) are redirected approval signaling 412.After this, the acting server 404 of new local area network (LAN) issued all data of issuing switching terminal 405 by the acting server 403 of initial local area network (LAN).The acting server 404 of new local area network (LAN) will be redirected approval signaling 412 and be transmitted to switching terminal 405, forward signal is 413, start a stateless sip agent and a RTP/RTCP (RTP/RTCP Real-time Transport Control Protocol) agency simultaneously, be respectively applied for signaling data and media data that the acting server 403 of initial local area network (LAN) is sent and be transmitted to switching terminal 405.After this, the data transfer path between distant terminal 401 and the switching terminal 405 becomes shown in 414,415,416,417.
If the comparative result of MD5 answer code is different, then the acting server 403 of initial local area network (LAN) sends out rejection signaling 418 redirected to the acting server 404 of new local area network (LAN).The acting server 404 of new local area network (LAN) will be redirected rejection signaling 418 and be transmitted to switching terminal 405, and forward signal is 419.Data transfer path between distant terminal 401 and the switching terminal 405 is still used original path, shown in 406,407,408.
If the acting server 404 of new local area network (LAN) is received authenticating user identification result " user is legal ", then 403 of acting servers to initial local area network (LAN) are redirected affirmation 420.If the acting server 404 of new local area network (LAN) is received authenticating user identification result " user is illegal ", then be redirected and cancel 421, and discharge and this relevant resource of communicating by letter to 403 of the acting servers of initial local area network (LAN).
After the acting server 403 of initial local area network (LAN) is received and is redirected affirmation 420, confirm this time to switch effectively.
The acting server 403 of initial local area network (LAN) receive be redirected cancel 421 after, directly the signaling data and the media data of switching terminal 405 are issued switching terminal 405.After this, the data transfer path between distant terminal 401 and the switching terminal 405 reverts to shown in 406,407,408.
If the distant terminal of communicating by letter with switching terminal is the terminal of other system, then change the acting server of the other side's local area network (LAN) among Fig. 4 into gateway and get final product, handoff procedure is identical.
The redirection process of a terminal (being called switching terminal) when a non-initial local area network (LAN) moves to another non-initial local area network (LAN) as shown in Figure 5 in the inventive method.This is the detailed description of one of the applicable cases of redirection process among Fig. 3.
Switching terminal 506 had begun to communicate with distant terminal 501 before moving to new local area network (LAN), and data are by the other side's acting server 502, initial acting server 503, and former acting server 504 is acted on behalf of, shown in 507,508,509,510.
After switching terminal 506 moves to new local area network (LAN) and obtains new IP address, to 505 redirect request 511 of acting server of new local area network (LAN).After the acting server 505 of new local area network (LAN) is received redirect request 511, on the one hand to 506 confirmation of receipt signals 512 of switching terminal, on the other hand redirect request is transmitted to the acting server 503 of initial local area network (LAN), forward signal is 513.
After the acting server 503 of initial local area network (LAN) was received redirect request, the MD5 answer code that MD5 answer code that is generated when terminal is registered on it for the last time and terminal send in the redirect request message compared.If the comparative result of MD5 answer code is identical, then 505 of acting servers to new local area network (LAN) are redirected approval signaling 514.After this, the acting server 505 of new local area network (LAN) issued all data of issuing switching terminal 506 by the acting server 503 of initial local area network (LAN).
The acting server 505 of new local area network (LAN) will be redirected the approval signaling and be transmitted to switching terminal 506, forward signal is 515, start a stateless sip agent and a RTP/RTCP agency simultaneously, be respectively applied for signaling data and media data that the acting server 503 of initial local area network (LAN) is sent and be transmitted to switching terminal 506.After this, the data transfer path between distant terminal 501 and the switching terminal 505 becomes shown in 516,517,518,519.
If the comparative result of MD5 answer code is different, then the acting server 503 of initial local area network (LAN) is redirected refusal 520 to 505 of the acting servers of new local area network (LAN).The acting server 505 of new local area network (LAN) will be redirected rejection signaling 520 and be transmitted to switching terminal 506, and forward signal is 521.Data transfer path between distant terminal 501 and the switching terminal 506 is still used original path, shown in 507,508,509,510.
If the acting server 505 of new local area network (LAN) is received authenticating user identification result " user is legal ", then 503 of acting servers to initial local area network (LAN) are redirected affirmation 522.The acting server 503 of initial local area network (LAN) receive be redirected confirm 522 after, to 504 of the acting servers of the former local area network (LAN) signaling 523 that clears data.After the acting server 504 of former local area network (LAN) is received the signaling 523 that clears data, will remove for stateless sip agent and the RTP/RTCP agency that switching terminal 506 starts.
If the acting server 505 of new local area network (LAN) is received authenticating user identification result " user is illegal ", then be redirected and cancel 524, and discharge and this relevant resource of communicating by letter to 503 of the acting servers of initial local area network (LAN).Initially the acting server 503 of local area network (LAN) is received to be redirected and is cancelled 524, after, will issue the signaling data of switching terminal 506 and the acting server 504 that media data is still issued former local area network (LAN).After this, the data transfer path between distant terminal 501 and the switching terminal 506 reverts to shown in 507,508,509,510.
If the distant terminal of communicating by letter with switching terminal is the terminal of other system, then change the acting server of the other side's local area network (LAN) among Fig. 5 into gateway and get final product, handoff procedure is identical.
The redirection process of a terminal (being called switching terminal) when a non-initial local area network (LAN) moves back to initial local area network (LAN) as shown in Figure 6 in the inventive method.This is the detailed description of one of the applicable cases of redirection process among Fig. 3.
After switching terminal 605 moves to new local area network (LAN) (actual is initial local area network (LAN), but terminal oneself is not known) and obtains new IP address, to 603 redirect request 610 of acting server of initial local area network (LAN).After the acting server 603 of initial local area network (LAN) is received redirect request 610, to 605 confirmation of receipt signals 611 of switching terminal.It oneself is exactly the acting server of this initial local area network (LAN) of calling out that the acting server 603 of initial local area network (LAN) is judged, and the MD5 answer code that MD5 answer code that is generated when terminal is registered on it for the last time and terminal send in the redirect request message compares.If the comparative result of MD5 answer code is identical, then be redirected approval signaling 612 to 605 of switching terminals.After this, the acting server 603 of initial local area network (LAN) is directly issued switching terminal 605 with all data of issuing switching terminal 605, no longer issues the acting server 604 of former local area network (LAN).After this, the data transfer path between distant terminal 601 and the switching terminal 605 becomes shown in 613,614,615.
If the comparative result of MD5 answer code is different, then the acting server 603 of initial local area network (LAN) is redirected refusal 616 to 605 at terminal.Data transfer path between distant terminal 601 and the switching terminal 605 is still used original path, shown in 606,607,608,609.
If the acting server 603 of initial local area network (LAN) is received authenticating user identification result " user is legal ", then to 604 of the acting servers of the former local area network (LAN) signaling 613 that clears data.After the acting server 604 of former local area network (LAN) is received the signaling 613 that clears data, will remove for stateless sip agent and the RTP/RTCP agency that switching terminal 605 starts.
If the acting server 603 of initial local area network (LAN) is received authenticating user identification result " user is illegal ", all data that then will issue switching terminal 605 are issued the acting server 604 of former local area network (LAN).Data transfer path between distant terminal 601 and the switching terminal 605 reverts to original path, shown in 606,607,608,609.
If the distant terminal of communicating by letter with switching terminal is the terminal of other system, then change the acting server of the other side's local area network (LAN) among Fig. 6 into gateway and get final product, handoff procedure is identical.
Motion management method in the mobile communication system, if the distant terminal of communicating by letter with switching terminal is the terminal of other system, the acting server of then inciting somebody to action the other side's local area network (LAN) wherein changes gateway into, handoff procedure is identical.
Claims (8)
1, the motion management method in a kind of mobile communication system, network is divided into two-layer, lower one deck is a local area network (LAN), higher one deck is a wide area network, local area network (LAN) is connected on the wide area network by its inner acting server, can connect many local area network (LAN)s under the wide area network, an acting server is arranged in each local area network (LAN), be used for calling control, IP address assignment and the mobile management of all terminals in the local area network (LAN), one of acting server terminates on the local area network (LAN), the other end is connected on the metropolitan area network, and its concrete steps are as follows:
The first step, the broadcast identification message, acting server is with the characteristic parameter of oneself, be broadcast to each base station in the local area network (LAN), its characteristic parameter also can be inquired about to acting server in the base station, the base station receives the characteristic parameter of acting server, forms the sign message, regularly to wireless terminal broadcast identification message;
Second step, judge whether to cross over local area network (LAN), terminal receives the sign message, the characteristic parameter of the characteristic parameter of acting server wherein with the acting server of own preservation compared, if comparative result is identical, then think and do not cross over local area network (LAN), do not carry out the mobile management operation,, then think and crossed over local area network (LAN) if comparative result is different, preserve the characteristic parameter of new acting server, check whether oneself is in communications status,, then do not carry out the mobile management operation if be not in communications status, if be in communications status, then begin the mobile management operation;
In the 3rd step, IP distributes the address fast, and terminal is sent out the quick request for allocation in IP address to acting server, and acting server distributes an IP address for terminal according to the IP address management agreement fast;
The 4th step, be redirected, redirection process is the route of the terminal that will switch changes to its current place local area network (LAN) from its local area network (LAN) that switches preceding place a process, redirect request is initiated by switching terminal, and the acting server of the local area network (LAN) at place, the acting server of new local area network (LAN) and the acting server of former local area network (LAN) were finished jointly when redirection process was begun this time to communicate by letter by switching terminal.
2, according to the motion management method in the mobile communication system of claim 1, wherein the handoff procedure step of Chong Dingxianging is as follows:
After the first step, the acting server of new local area network (LAN) are received the redirect request that switching terminal sends, at first redirect request is transmitted to the acting server of initial local area network (LAN), and then to the family application for registration of registrar hair;
Second step, after the acting server of initial local area network (LAN) receives that the acting server of new local area network (LAN) is transmitted next redirect request, the MD5 answer code that MD5 answer code that is generated when terminal is registered on it for the last time and terminal send in the redirect request message compares, if comparative result is identical, then send out and be redirected approval, carry out redirect operation,, then send out and be redirected refusal if comparative result is different;
The 3rd step, the acting server of new local area network (LAN) is waited for the authentication result to user identity, if the user is legal, then send out to be redirected and confirm to the acting server of initial local area network (LAN), if the user is illegal, then send out to be redirected and cancel, and the resource that this time signal post takies is discharged to the acting server of initial local area network (LAN);
The 4th step, after the acting server of initial local area network (LAN) is received and is redirected affirmation, acting server to former local area network (LAN) is sent out the signaling that clears data, and after the acting server of initial local area network (LAN) was received redirected cancelling, the route recovery that will change in redirect operation became original route;
In the 5th step, after the acting server of former local area network (LAN) was received the signaling that clears data, the resource that this time signal post is taken discharged.
3, according to the motion management method in the mobile communication system of claim 1, its concrete steps are as follows:
After system starts working, at first forward S302 to from step S301, acting server is with the characteristic parameter of oneself, be broadcast to each base station in the local area network (LAN), its characteristic parameter also can be inquired about to acting server in the base station, after the characteristic parameter of acting server is received in the base station, forward S303 to, form the sign message, preservation is got up, and regularly to wireless terminal broadcast identification message, in S304, terminal detects the sign message, after receiving the sign message, forward S305 to, judge whether to have crossed over local area network (LAN), terminal compares the characteristic parameter of the characteristic parameter of the acting server in the sign message that has just received with the acting server of oneself preserving, if comparative result is identical, then think and do not cross over local area network (LAN), if comparative result is different, then thinks and crossed over local area network (LAN), and preserve the characteristic parameter of new acting server, if do not cross over local area network (LAN), then return S303,, then forward S306 to if crossed over local area network (LAN), whether the terminal inspection oneself be in communications status, if terminal is not in communications status, then forward S309 to, terminal is to system application IP address, system gives IP address of terminal distribution, return S303 then,, then forward S307 to if terminal is in communications status, terminal is to the quick distributing IP of system's application address, system forwards S308 to after giving terminal distribution IP address fast, and terminal is sent out redirect request to system, system changes to current local area network (LAN) with the communication route of terminal from original local area network (LAN), returns S303 then.
According to the motion management method in the mobile communication system of claim 3, it is characterized in that 4, described characteristic parameter comprises: MAC Address, implicit IP address, identification code or public ip address.
5, according to the motion management method in the mobile communication system of claim 1 or 2 or 3, the redirection process when initial local area network (LAN) moves to new local area network (LAN), its concrete steps are as follows:
Before switching terminal 405 moves to new local area network (LAN), calling procedure or communication process begin, switching terminal 405 has begun to communicate by letter with another terminal, signaling data between them and media data are transmitted by acting server separately, distant terminal 401 hair family side datas 406 are to the acting server 402 of the other side's local area network (LAN), the acting server 402 of the other side's local area network (LAN) is transformed into network side data 407 with user side data 406, issue the acting server 403 of initial local area network (LAN), the acting server 403 of initial local area network (LAN) is transformed into user side data 408 with network side data 407, issue switching terminal 405, switching terminal 405 is issued the data of distant terminal 401 according to transmitting with top opposite mode;
After switching terminal 405 moves to new local area network (LAN) and obtains new IP address, 404 redirect request 409 of acting server to new local area network (LAN), after the acting server 404 of new local area network (LAN) is received redirect request 409, on the one hand to 405 confirmation of receipt signals 410 of switching terminal, on the other hand redirect request is transmitted to the acting server 403 of initial local area network (LAN), forward signal is 411;
After the acting server 403 of initial local area network (LAN) is received redirect request, the MD5 answer code that MD5 answer code that is generated when terminal is registered on it for the last time and terminal send in the redirect request message compares, if the comparative result of MD5 answer code is identical, then 404 of acting servers to new local area network (LAN) are redirected approval signaling 412, after this, the acting server 404 of new local area network (LAN) issued all data of issuing switching terminal 405 by the acting server 403 of initial local area network (LAN), the acting server 404 of new local area network (LAN) will be redirected approval signaling 412 and be transmitted to switching terminal 405, forward signal is 413, start a stateless sip agent and a RTP/RTCP agency simultaneously, be respectively applied for signaling data and media data that the acting server 403 of initial local area network (LAN) is sent and be transmitted to switching terminal 405, after this, the data transfer path between distant terminal 401 and the switching terminal 405 becomes as 414,415,416, shown in 417;
If the comparative result of MD5 answer code is different, the acting server 403 of then initial local area network (LAN) sends out rejection signaling 418 redirected to the acting server 404 of new local area network (LAN), the acting server 404 of new local area network (LAN) will be redirected rejection signaling 418 and be transmitted to switching terminal 405, forward signal is 419, data transfer path between distant terminal 401 and the switching terminal 405 is still used original path, shown in 406,407,408;
If the acting server 404 of new local area network (LAN) is received authenticating user identification result " user is legal ", then 403 of acting servers to initial local area network (LAN) are redirected affirmation 420, if the acting server 404 of new local area network (LAN) is received authenticating user identification result " user is illegal ", then be redirected and cancel 421, and discharge and this relevant resource of communicating by letter to 403 of the acting servers of initial local area network (LAN);
After the acting server 403 of initial local area network (LAN) is received and is redirected affirmation 420, confirm this time to switch effectively;
The acting server 403 of initial local area network (LAN) receive be redirected cancel 421 after, directly the signaling data and the media data of switching terminal 405 are issued switching terminal 405, after this, the data transfer path between distant terminal 401 and the switching terminal 405 reverts to shown in 406,407,408.
6, according to the motion management method in the mobile communication system of claim 1 or 2 or 3, the redirection process when a non-initial local area network (LAN) moves to another non-initial local area network (LAN), its step is specifically as follows suddenly:
Switching terminal 506 had begun to communicate with distant terminal 501 before moving to new local area network (LAN), and data are by the other side's acting server 502, initial acting server 503, and former acting server 504 is acted on behalf of, shown in 507,508,509,510;
After switching terminal 506 moves to new local area network (LAN) and obtains new IP address, 505 redirect request 511 of acting server to new local area network (LAN), after the acting server 505 of new local area network (LAN) is received redirect request 511, on the one hand to 506 confirmation of receipt signals 512 of switching terminal, on the other hand redirect request is transmitted to the acting server 503 of initial local area network (LAN), forward signal is 513;
After the acting server 503 of initial local area network (LAN) is received redirect request, the MD5 answer code that MD5 answer code that is generated when terminal is registered on it for the last time and terminal send in the redirect request message compares, if the comparative result of MD5 answer code is identical, then 505 of acting servers to new local area network (LAN) are redirected approval signaling 514, after this, the acting server 505 of new local area network (LAN) issued all data of issuing switching terminal 506 by the acting server 503 of initial local area network (LAN);
The acting server 505 of new local area network (LAN) will be redirected the approval signaling and be transmitted to switching terminal 506, forward signal is 515, start a stateless sip agent and a RTP/RTCP agency simultaneously, be respectively applied for signaling data and media data that the acting server 503 of initial local area network (LAN) is sent and be transmitted to switching terminal 506, after this, the data transfer path between distant terminal 501 and the switching terminal 505 becomes shown in 516,517,518,519;
If the comparative result of MD5 answer code is different, then the acting server 503 of initial local area network (LAN) is redirected refusal 520 to 505 of the acting servers of new local area network (LAN), the acting server 505 of new local area network (LAN) will be redirected rejection signaling 520 and be transmitted to switching terminal 506, forward signal is 521, data transfer path between distant terminal 501 and the switching terminal 506 is still used original path, shown in 507,508,509,510;
If the acting server 505 of new local area network (LAN) is received authenticating user identification result " user is legal ", then 503 of acting servers to initial local area network (LAN) are redirected affirmation 522, after the acting server 503 of initial local area network (LAN) is received and is redirected affirmation 522, to 504 of the acting servers of the former local area network (LAN) signaling 523 that clears data, after the acting server 504 of former local area network (LAN) is received the signaling 523 that clears data, will remove for stateless sip agent and the RTP/RTCP agency that switching terminal 506 starts;
If the acting server 505 of new local area network (LAN) is received authenticating user identification result " user is illegal ", then be redirected and cancel 524 to 503 of the acting servers of initial local area network (LAN), and discharge and this relevant resource of communicating by letter, the acting server 503 of initial local area network (LAN) receive be redirected cancel 524 after, the signaling data of switching terminal 506 and the acting server 504 that media data is still issued former local area network (LAN) will be issued, after this, the data transfer path between distant terminal 501 and the switching terminal 506 reverts to shown in 507,508,509,510.
7, according to the motion management method in the mobile communication system of claim 1 or 2 or 3, the redirection process when a non-initial local area network (LAN) moves back to initial local area network (LAN), its step is specifically as follows suddenly:
Switching terminal 605 had begun to communicate with distant terminal 601 before moving back to initial local area network (LAN), and data are by the other side's acting server 602, initial acting server 603, and former acting server 604 is acted on behalf of, shown in 606,607,608,609;
After switching terminal 605 moves to new local area network (LAN) and obtains new IP address, 603 redirect request 610 of acting server to initial local area network (LAN), after the acting server 603 of initial local area network (LAN) is received redirect request 610, to 605 confirmation of receipt signals 611 of switching terminal, it oneself is exactly the acting server of this initial local area network (LAN) of calling out that the acting server 603 of initial local area network (LAN) is judged, the MD5 answer code that MD5 answer code that is generated when terminal is registered on it for the last time and terminal send in the redirect request message compares, if the comparative result of MD5 answer code is identical, then be redirected approval signaling 612 to 605 of switching terminals, after this, the acting server 603 of initial local area network (LAN) is directly issued switching terminal 605 with all data of issuing switching terminal 605, no longer issue the acting server 604 of former local area network (LAN), after this, the data transfer path between distant terminal 601 and the switching terminal 605 becomes as 613,614, shown in 615;
If the comparative result of MD5 answer code is different, then the acting server 603 of initial local area network (LAN) is redirected refusal 616 to 605 at terminal, data transfer path between distant terminal 601 and the switching terminal 605 is still used original path, shown in 606,607,608,609;
If the acting server 603 of initial local area network (LAN) is received authenticating user identification result " user is legal ", then to 604 of the acting servers of the former local area network (LAN) signaling 613 that clears data, after the acting server 604 of former local area network (LAN) is received the signaling 613 that clears data, will remove for stateless sip agent and the RTP/RTCP agency that switching terminal 605 starts;
If the acting server 603 of initial local area network (LAN) is received authenticating user identification result " user is illegal ", all data that then will issue switching terminal 605 are issued the acting server 604 of former local area network (LAN), data transfer path between distant terminal 601 and the switching terminal 605 reverts to original path, shown in 606,607,608,609.
8, according to the motion management method in the mobile communication system of claim 5 or 6 or 7, it is characterized in that, if the distant terminal of communicating by letter with switching terminal is the terminal of other system, the acting server of then inciting somebody to action the other side's local area network (LAN) wherein changes gateway into, and handoff procedure is identical.
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| CN 200310124274 CN1635750A (en) | 2003-12-29 | 2003-12-29 | A method of mobility management in mobile communication system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100493102C (en) * | 2005-12-01 | 2009-05-27 | 中国科学院计算技术研究所 | Method for distribution of IP address in wideband wireless city area network |
| CN101282287B (en) * | 2007-04-02 | 2010-09-15 | 华为技术有限公司 | Method and apparatus for negotiation mobility management protocol |
| CN101741828B (en) * | 2009-08-07 | 2012-11-21 | 株洲华通科技有限责任公司 | Domain control server-based sound image comprehensive control system |
| CN102056260B (en) * | 2009-10-28 | 2014-12-10 | 中兴通讯股份有限公司 | Mobile parameter enquiry and negotiation method and system |
| CN106332044A (en) * | 2015-06-23 | 2017-01-11 | 中兴通讯股份有限公司 | Roaming IP address management method, network surfing method, source tracing method, device and system |
-
2003
- 2003-12-29 CN CN 200310124274 patent/CN1635750A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100493102C (en) * | 2005-12-01 | 2009-05-27 | 中国科学院计算技术研究所 | Method for distribution of IP address in wideband wireless city area network |
| CN101282287B (en) * | 2007-04-02 | 2010-09-15 | 华为技术有限公司 | Method and apparatus for negotiation mobility management protocol |
| CN101741828B (en) * | 2009-08-07 | 2012-11-21 | 株洲华通科技有限责任公司 | Domain control server-based sound image comprehensive control system |
| CN102056260B (en) * | 2009-10-28 | 2014-12-10 | 中兴通讯股份有限公司 | Mobile parameter enquiry and negotiation method and system |
| CN106332044A (en) * | 2015-06-23 | 2017-01-11 | 中兴通讯股份有限公司 | Roaming IP address management method, network surfing method, source tracing method, device and system |
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