CN1635805A - A cellular wireless LAN mobile multimedia communication system and method - Google Patents
A cellular wireless LAN mobile multimedia communication system and method Download PDFInfo
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- CN1635805A CN1635805A CN 200310124275 CN200310124275A CN1635805A CN 1635805 A CN1635805 A CN 1635805A CN 200310124275 CN200310124275 CN 200310124275 CN 200310124275 A CN200310124275 A CN 200310124275A CN 1635805 A CN1635805 A CN 1635805A
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Abstract
This invention refers to a cellular WLAN mobile multimedia communication system and method in mobile communication technology, system contains four grades, sub-network, local network, national trunk network and internal trunk network, method contains system searching, IP address distributing, register attestation, standby, communication and exit. Said invention solves the quick switching problem of wireless terminal moving in large range and keeping wireless terminal in continuing multimedia communication. Said invention adopts all IP network structure and E 164 format standard telephone number as terminal identifying code with low cost and large capacity.
Description
Technical field
The present invention relates to the mobile communication technology field, particularly the IP transmission technology is applied to a kind of cellular wireless local area network Multimedia Mobile Communication Systems and the method for mobile communication.
Background technology
Present all public mobile communication systems such as gsm mobile communication system, CDMA mobile communication system, 3-G (Generation Three mobile communication system) (3G) etc., all are based on circuit-switched technology.Also based on Circuit-switched transmission channel, bandwidth is narrower for the IP operation that they provide, so these systems are all poor to the tenability of multimedia communication, and power system capacity is also limited.
The invention system is the access means with the wideband wireless local area network, is transmission platform with the broadband IP network, constitutes the broadband public mobile communication system of an all-IP structure.Because adopted pure IP transmission and switching technology, and the non-constant width of the network bandwidth, native system can provide real multimedia service with low-down cost, and power system capacity is very big.
Wireless local area network technology is very ripe, also has some to comprise the technology of the wireless multimedia communication of Speech Communication by WLAN (wireless local area network).Yet these technology do not possess supports wireless terminal to carry out the ability of uninterrupted communication when mobile in big zone.In these technology, the identification code of terminal all adopts the IP address in addition, and is different with the plain old telephone number, do not meet people's custom, remembers very inconvenient.
The invention system has solved the relevant issues that wireless terminal switches when mobile fast on a large scale, make the wireless terminal can to keep continuous multimedia communication.Simultaneously, the invention system adopts the identification code of the standard telephone number of form E.164 as terminal, meets people's use habit.
Present mobile IP technology must use public ip address, and address resource is at full stretch, and the number of users that system can support is very limited.
The used IP address of the terminal of invention system is the implicit IP address of subnet.Except the special IP address of relevant agreement regulation, other IP address all can be used for the terminal in the subnet, and the quantity of IP address is hundreds of millions of.Different sub-network can adopt identical IP address space, that is to say, each subnet all has hundreds of millions of IP addresses available.Therefore the IP address resource of system is enough to satisfy any demand.
Summary of the invention
System of the present invention is made of SPInet-IV.
The first order is a subnet, is the approach of accessing terminal to network.Subnet adopts the local net network technology, and promptly all system equipments in the subnet all link together by cable LAN.System equipment in the communication subnet has base station and subnet controller.In the subnet a plurality of base stations can be arranged, the subnet controller has only one.Wireless terminal inserts subnet by the base station, and catv terminal directly inserts subnet.Comprise a plurality of functional entitys in the subnet controller, mainly contain: call control server, media delivery server, mobile management server, registrar, IP address management server, subnet management server etc.
The invention enables terminal to use the implicit IP address of subnet, promptly private IP address that is to say, the IP address of terminal is only effectively inner at subnet.Terminal is the outer equipment of access subnetwork directly, and the equipment outside the subnet is access terminal directly.Each subnet uses an implicit IP address space.Different sub-network can use identical IP address space, also can use different IP address spaces.
The second level is local network, is the metropolitan area network of native system special use, or the VPN of offering on existing metropolitan area network for the native system special use.Subnet is connected on the local network by the subnet controller, and other system equipment is directly connected on the local network.System equipment on the local network has: local user's location register, visiting customer location register, authenticating user identification server, national number Analysis server, gateway, webmaster accounting server etc.Said system equipment is logic entity, is not physical entity.They can be realized by one or several physical equipment.Gateway is the interface equipment of native system and other communication system (as common service telecommunications network, gsm mobile communication system, CDMA mobile communication system, Internet, 3-G (Generation Three mobile communication system) etc.).In each local network, there is one at most at the gateway of every kind of communication system.
The third level is a national trunk network, is the domestic IP backbone of native system special use, or the VPN of offering on existing domestic IP backbone for the native system special use.The online system equipment of national distance has international number Analysis server and network address register.
The fourth stage is the international long-distance net, is the VPN of opening on international IP backbone.
Annexation between the SPInet-IV of the present invention is: subnet is connected on the local network by the subnet controller, and local network is crossed route equipment, and to be connected to national distance online, and it is online that national trunk network is connected to international long-distance by routing device.
Subnet is made up of two layers of local area network (LAN), sub-net controller, several base stations, several wireless terminals and several catv terminals, also can not have catv terminal.
Terminal is the equipment that the user is directly used in communication, is divided into two kinds of wireless terminal and catv terminals.Wireless terminal has the forms such as desktop computer of the PDA of mobile phone, connection wireless network card, the notebook that connects wireless network card, connection wireless network card.Catv terminal has forms such as the notebook that is equipped with wired network adapter, the desktop computer that is equipped with wired network adapter, network telephone.
The base station is the interface equipment of network access by wireless terminal, and each base station can allow several wireless terminals to insert simultaneously.
The subnet controller is the equipment that is connected across between subnet and the local network, is the control appliance of terminal in the subnet.The subnet controller is made up of following functional entity: call control server, media delivery server, registrar, mobile management server, IP address management server, subnet management server.
The annexation of equipment is in the subnet: wireless terminal is connected on the base station by wireless channel, the base station is connected on the switch or hub of local area network (LAN), catv terminal is connected on the switch or hub of local area network (LAN), one end of subnet controller is connected on the switch or hub of local area network (LAN), and the other end is connected on the local network.Between wireless terminal and the base station, between base station and the subnet controller, between catv terminal and the subnet controller bidirectional transfer of information is arranged.
Local network is made up of a metropolitan area network, local user's location register, a visiting customer location register, an authenticating user identification server, national number Analysis server, a plurality of gateway and a webmaster accounting server.In addition, an end of subnet controller also is connected on the metropolitan area network.Between the subnet controller, between subnet controller and the gateway, between subnet controller and the webmaster accounting server, between local user's location register and the authenticating user identification server bidirectional transfer of information is arranged, the subnet controller has unidirectional message transmission to local user's location register, national number Analysis server to visiting customer location register to national number Analysis server, national number Analysis server to national number Analysis server, gateway.
Local user's location register is responsible for writing down the positional information of the home subscriber of place local network.The user whenever once registers, and the customer position information in local user's location register just upgrades once.
Visiting customer location register is responsible for writing down and is positioned at the place local network at present but is not the user position information of the home subscriber of place local network.The user whenever once registers, and the customer position information in the visiting customer location register just upgrades once.After the user left the local network at visiting customer location register place, visiting customer location register was with this user's erasing of information.
The authenticating user identification server is responsible for the home subscriber of place local network is carried out authentication.
The national number Analysis server is responsible for the called number that does not belong to the place local network is analyzed.It is national number or state's External Number that the national number Analysis server should be able to be discerned called number, is the number of present networks or the number of other network.For the number of domestic present networks, the national number Analysis server should be able to know which local network it belongs to.
Gateway is the interface equipment of present networks and other public correspondence network.Gateway is made up of call control server and two functional entitys of media delivery server, finishes signaling conversion and media conversion between present networks and other public correspondence network.Gateway can be not only one, but for every kind of public correspondence network, only a gateway need be arranged.For certain public correspondence network, can there be gateway yet, native system passes through another kind of public correspondence network switch to the communication of this system.
Webmaster and accounting server provide standard interface for webmaster and charge system.
The online equipment of national distance has international number Analysis server and network address register, and they all are connected on the domestic IP backbone.
The international number Analysis server is responsible for the called number that does not belong to the country one belongs to's Intranet is analyzed.The international number Analysis server should be able to be discerned called number and belong to which country which network.
Network address register holds has the IP address of local user's location register of each local network.Network address register timing also can be accepted inquiry to the IP address of local user's location register of each local network of Web broadcast, and the IP address of local user's location register of certain local network is provided to the inquiry.
The course of work of cellular wireless local area network Multimedia Mobile Communication Systems is divided into six big steps:
The first step: system search.The subnet controller is regularly issued the base station with oneself characteristic parameter and operating state.Fixed time broadcast markers frame in base station wherein comprises the characteristic parameter and the operating state of subnet controller.Starting up of terminal and finish initialization after, on the predetermined work frequency, receive the markers frame of base station successively, and rest on the best frequency of signal quality.
Second step: IP address assignment.Terminal according to the IP address assignment agreement to system application IP address.The IP address management server is the IP address of a free time of terminal distribution.
The 3rd step: registration and authentication.Terminal is applied for the registration of to system.Whether registrar is that the local user determines it is to apply for the registration of to local user's location register according to the user, still applies for the registration of to visiting customer location register.After visiting customer location register was received application for registration, local user's location register of local network was applied for the registration of under the user.After local user's location register is received application for registration, judge whether that according to the current state of user needs authenticate the user.If desired, then send out authentication request to the authenticating user identification server.The authenticating user identification server authenticates the user according to the authenticating user identification agreement, and authentication result is fed back to local user's location register.If user identity does not need authentication, perhaps authentication result is that the user is legal, system update user profile then, and send out to terminal and to succeed in registration.If authentication result is that the user is illegal, then registration failure is sent out to terminal by system.
The 4th step: standby.Terminal after succeeding in registration enters holding state.Under holding state, terminal can make a call or call accepted.Terminal when a subnet moves to another subnet, need be applied for the IP address again under holding state, re-register, and its process is identical during with start just.
The 5th step: communication.In communication process, the Signalling exchange that belongs between the user of invention system is transmitted by the call control server of place subnet separately, medium pass through the media delivery server forwards of place subnet separately alternately, Signalling exchange between the user of invention system and the user of other system is by the call control server and the gateway forwards of invention system user place subnet, and medium are media control server and the gateway forwards by invention system user place subnet alternately.When terminal is crossed over subnet under communications status, obtain an IP address fast, and send handover request to system according to the IP address assignment agreement.After handover request is received by system, terminal is connected to system by new base station and subnet, and the ongoing communication of terminal is proceeded by new base station and subnet according to mobility management protocol.System registers terminal simultaneously.If succeed in registration, then the communication process of terminal is proceeded.If registration failure, system is with regard to the communication process of forced interruption terminal.
The 6th step: withdraw from.When terminal closedown or after leaving service area, all are retained in registrar and all are eliminated with relevant this terminal information in the visiting customer location register.Local user's location register of local network is changed to " shutdown " or " out of reach " with the state of this terminal under the terminal.
The method of cellular wireless local area network Multimedia Mobile Communication Systems, terminal using system implicit IP address, i.e. private IP address, each subnet uses an IP address space, different sub-network can use identical IP address space, also can use different IP address spaces.
Description of drawings
Fig. 1 is the formation and the annexation figure of cellular wireless local area network Multimedia Mobile Communication Systems of the present invention.
Fig. 2 is the connection layout of the interior equipment of national trunk network of cellular wireless local area network Multimedia Mobile Communication Systems of the present invention.
Fig. 3 is the connection layout of the interior equipment of local network of cellular wireless local area network Multimedia Mobile Communication Systems of the present invention.
Fig. 4 is the connection layout of the interior equipment of subnet of cellular wireless local area network Multimedia Mobile Communication Systems of the present invention.
Fig. 5 is a cellular wireless local area network Multimedia Mobile Communication Systems method flow diagram of the present invention.
When Fig. 6 is the communicating between users of two invention systems signaling flow and Media Stream the path profile of process.
When Fig. 7 is the communicating between users of the user of invention system and other network signaling flow and Media Stream the path profile of process.
To be terminal switch to the transmission mode and the path profile of signaling flow and Media Stream behind the new subnet from initial subnet to Fig. 8.
Fig. 9 is another mode of local network network configuration.
Figure 10 is country connection layout of equipment in the national trunk network when using system of the present invention separately.
Figure 11 is area connection layout of equipment in the local network when using system of the present invention separately.
Figure 12 is another mode of area local network network configuration when using system of the present invention separately.
Embodiment
The network configuration of a kind of cellular wireless local area network Multimedia Mobile Communication Systems proposed by the invention as shown in Figure 1, this is a plurality of country networking method when adopting system of the present invention.Under this application mode, whole network is by international long-distance net 11, routing device 12, and several national trunk networks 13, routing device 14, several local networks 15, several subnets 16 are formed.When communicating by letter between the terminal in the same subnet, information flow is in the subnet internal flow.When communicating by letter between the terminal in two subnets of same local network, information flow flows to local network 15 from a subnet 16, flows to another subnet 16 from local network 15 again.The route that reciprocal information flow is flowed through is just in time opposite.When communicating by letter between the terminal of the different local networks of same national trunk network, information flow flows to local network 15 from subnet 16, flows to routing device 14 again, flow to national trunk network 13 again, the routing device 14 that flows to another local network again and connected flows to another local network 15 again, flows to another subnet 16 again.The route that reciprocal information flow is flowed through is just in time opposite.During the terminal communication of different national trunk networks, information flow flows to local network 15 from subnet 16, flow to routing device 14 again, flow to national trunk network 13 again, flow to routing device 12 again, flow to international long-distance net 11 again, the routing device 12 that flows to another national trunk network again and connected flows to another national trunk network 13 again, the routing device 14 that flows to another local network again and connected, flow to another local network 15 again, flow to another subnet 16 again.The route that reciprocal information flow is flowed through is just in time opposite.
The network of the national trunk network of a kind of cellular wireless local area network Multimedia Mobile Communication Systems proposed by the invention is formed as shown in Figure 2, and it is the detailed description of the national trunk network among Fig. 1.Shown in Figure 2 is in the country not only local network, and each local network all adopts the interconnective situation of method of the present invention.Under this application mode, national trunk network is by domestic IP backbone 21, international number Analysis server 22, and network address register 23 is formed.Domestic IP backbone 21 upwards connects the international long-distance net by routing device, connects local network by routing device downwards.When the external user of customer call, local network is issued international number Analysis server 22 with called number, international number Analysis server 22 is checked numbers and is analyzed, determine its belonging country, and inquire about called position to the international number Analysis server of called subscriber belonging country via domestic IP backbone 21.The international number Analysis server of called subscriber belonging country is issued the international number Analysis server 22 of caller the country one belongs to the IP address of the subnet controller of called place subnet, and international number Analysis server 22 is issued caller place local network to the IP address of the subnet controller of called place subnet via domestic IP backbone 21 again.Network address register 23 is regularly broadcasted the IP address of local user's location register of each local networks to domestic IP backbone 21.If network address register 23 is received the address lookup information that domestic IP backbone 21 is sent, then domestic IP backbone 21 is issued in the IP address of local user's location register of the local network that will be inquired about.
The network of the local network of a kind of cellular wireless local area network Multimedia Mobile Communication Systems proposed by the invention is formed as shown in Figure 3, and it is the detailed description of the local network among Fig. 1.The not only situation of a subnet that shown in Figure 3 is in the local network.Under this application mode, local network is by metropolitan area network 31, local user's location register 32, visiting customer location register 33, national number Analysis server 34, authenticating user identification server 35, webmaster and accounting server 36, public communication system gateway 37, internet gateway 38 is formed.Metropolitan area network 31 upwards connects national trunk network by routing device, connects subnet downwards.If system has other method that the user is authenticated, then authenticating user identification server 35 no longer needs.If local network does not need to carry out webmaster or charging, perhaps there is other method to carry out webmaster or charging, then webmaster and accounting server 36, perhaps a function wherein no longer needs.The quantity of public communication system gateway is decided according to the quantity and the method for other public communication system of the required connection of local network.If do not link to each other with other public correspondence network, then public communication system gateway 37 no longer needs.If do not link to each other with the internet, then internet gateway 38 no longer needs.
During local (or other places) user applies registration, subnet is issued local user's location register 32 (or visiting customer location register 33) with user's application for registration information via metropolitan area network 31.Local user's location register of the local network under the user of application for registration issued user's application for registration by visiting customer location register 33 via metropolitan area network 31.Local user's location register 32 authenticates the user after receiving user's application for registration if desired, and then the authenticating user identification application is issued authenticating user identification server 35 via metropolitan area network 31.Authenticating user identification server 35 is issued local user's location register 32 with authentication result via metropolitan area network 31.If do not need the user is not authenticated, perhaps authentication result is that the user is legal, local user's location register 32 update user information then, and via metropolitan area network 31 to a side (subnet or visiting customer location register 33) who the proposes user's application for registration information that succeeds in registration.If authentication result is that the user is illegal, then local user's location register 32 is sent out registration failure information via metropolitan area network 31 to a side (subnet or visiting customer location register 33) who proposes user's application for registration.After visiting customer location register 33 is received the information of user registration success, update user information, and send out the information of succeeding in registration to subnet via metropolitan area network 31.After visiting customer location register 33 is received the information of user's registration failure, remove user profile, and send out registration failure information to subnet via metropolitan area network 31.
During native system customer call native system user, national number Analysis server 34 is analyzed called number after receiving the called number analysis request of subnet.If called is national user, then in the database of oneself, search the IP address of local user's location register of called affiliated local network.If can not find, then inquire about to network address register 23 via metropolitan area network 31.If called is foreign user, then to 22 called number analysis request of international number Analysis server.The national number Analysis server is issued subnet with the IP address of local user's location register of local network under called via metropolitan area network 31.
During the user of the customer call native system of other system, to 34 called number analysis request of national number Analysis server, national number Analysis server 34 is issued public communication system gateway 37 with the IP address of local user's location register of local network under called via metropolitan area network 31 to public communication system gateway 37 via metropolitan area network 31.During the user of other public communication system of native system customer call, subnet via metropolitan area network 31 to 34 called number analysis request of national number Analysis server.National number Analysis server 34 is issued corresponding public communication system gateway 37 via metropolitan area network 31 with called number.Information between native system user and other public communication system user is transmitted between subnet and other public communication system via metropolitan area network 31 and public communication system gateway 37.
The native system user is when the internet photos and sending messages, and subnet is issued internet gateway 38 to information via metropolitan area network 31 earlier, and internet gateway 38 is issued the internet to information again.The internet is issued native system user's information and is issued subnet via metropolitan area network 31 and internet gateway 38.
Webmaster and charge information transmit between webmaster and charge system and subnet via metropolitan area network 31 and webmaster and accounting server 36.
The network of the subnet of a kind of cellular wireless local area network Multimedia Mobile Communication Systems proposed by the invention is formed as shown in Figure 4, and it is the detailed description of the subnet among Fig. 1.Subnet is by local area network (LAN) 41, subnet controller 42, and base station 43, wireless terminal 44 and catv terminal 45 are formed.Catv terminal 45 can not have.Wireless terminal 44 is issued base station 43 with information, and base station 43 is issued subnet controller 42 to information via local area network (LAN) 41 again.Subnet controller 42 is issued the information of wireless terminal 44 and is at first issued base station 43 via local area network (LAN) 41, issues wireless terminal 44 by base station 43 again.Information exchange between catv terminal 45 and the subnet controller 42 is carried out via local area network (LAN) 41.
When the user in the subnet made a call, the national number Analysis server in the local network at first issued called calling by subnet controller 42.If called also is the user of native system, then the national number Analysis server is with the subnet controller 42 of the IP address notification caller place subnet of the subnet controller of called place subnet.If called is not the user of native system, then the national number Analysis server is with the subnet controller 42 of the IP address notification caller place subnet of selected gateway.After this, the subnet controller or the gateway of called place subnet directly issued call signaling by the subnet controller 42 of caller place subnet.After communication was set up, the subnet controller 42 of caller place subnet was that calling and called are the medium agency with the subnet controller of called place subnet or gateway.
The workflow of a kind of cellular wireless local area network Multimedia Mobile Communication Systems proposed by the invention and method are as shown in Figure 5.When system starts working, at first forward S502 to, fixed time broadcast markers frame from step S501.Behind the starting up of terminal, forward step S503 search channel to.After search procedure is finished, forward step S504 to, judge whether to find available channel.If do not find available channel, then return step S503, continue search channel.If find not only available channel, then rest on the optimum channel, forward step S505 then to, terminal is to system application IP address.After the IP application IP addresses are received by system, forward step S506 to, give IP address of terminal distribution.After terminal is received the IP address, forward step S507 to, apply for the registration of to system.After application for registration is received by system, forward step S508 to, judge whether and to authenticate user identity.If do not need authentication, then forward step S513 to, system update user profile, and send out the information of succeeding in registration to terminal.Authentication then forwards step S509 to if desired, and user identity is authenticated.Forward step S510 after having authenticated to, judge according to authentication result.If the user is illegal, then forward step S511 to, registration failure information is sent out to terminal by system.After terminal is received registration failure information, forward step S512 to, power cut-off.If the user is legal, then forward step S513 to, system update user profile, and send out the information of succeeding in registration to terminal.After terminal is received the information of succeeding in registration, forward step S514 to, enter holding state.Under holding state, terminal can be initiated and receipt of call.If the user shuts down or leaves service area under holding state, then forward step S516 to, terminal logs off, system update user profile.If terminal is crossed over subnet under holding state, promptly enter another subnet from a subnet, then forward step S503 to, again search channel.If terminal makes a call or called out, then forward step S519 to, system establishes a communications link.After communicating to connect foundation, forward step S520 to, terminal enters communications status.If sign off then forwards step S514 to, terminal enters holding state.If terminal cross subnet in communication process then forwards step S523 to, terminal is search channel again, and system gives terminal distribution IP address again, and terminal re-registers.If registration failure then returns step S514, terminal enters holding state.If succeed in registration, then forward step S525 to, system transfers to new subnet with communicating to connect of this terminal, i.e. the subnet at the current place of terminal.Communicate to connect shifted after, return step S519, terminal reenters communications status.
The path of the information flow of two terminals in communication process of invention system as shown in Figure 6.601 user side call signalings of calling terminal 602 are given the call control server 603 of its place subnet.Call control server 603 is transformed into network side call signaling 604 to user side call signaling 602, issues the call control server 605 of terminal called place subnet.Call control server 605 is transformed into user side call signaling 606 to network side call signaling 604, issues terminal called 607.
On other direction, 607 user side call signalings of terminal called 608 are given the call control server 605 of its place subnet.Call control server 605 is transformed into network side call signaling 609 to user side call signaling 608, issues the call control server 603 of calling terminal place subnet.Call control server 603 is transformed into user side call signaling 610 to network side call signaling 609, issues calling terminal 601.
When the calling and called terminal communicated, 601 user side media informations of calling terminal 611 were given the media delivery server 612 of its place subnet.Media delivery server 612 is transformed into network side media information 613 to user side media information 611, issues the media delivery server 614 of terminal called place subnet.Media delivery server 614 is transformed into user side media information 615 with network side media information 613, issues terminal called 607.
On other direction, 607 user side media informations of terminal called 616 are given the media delivery server 614 of its place subnet.Media delivery server 614 is transformed into network side media information 617 to user side media information 616, issues the media delivery server 612 of calling terminal place subnet.Media delivery server 612 is transformed into user side media information 618 to network side media information 617, issues calling terminal 601.
The information flow path of communicating by letter between the terminal of the terminal of invention system and other public correspondence network termination system as shown in Figure 7.
701 invention system users of invention system terminal side call signaling 702 is given the call control server 703 of place subnet.Call control server 703 is transformed into invention grid side call signaling 704 to invention system user side call signaling 702, issues gateway 705.Gateway 705 is transformed into public network network side call signaling 706 to invention grid side call signaling 704, issues public network 707.Public network 707 is transformed into public network user side call signaling 708 with public network network side call signaling 706, issues public network terminal 709.
On other direction, 709 public network user sides of public network terminal call signaling 710 is given public network 707.Public network 707 is transformed into public network network side call signaling 711 to 710, issues gateway 705.Gateway 705 is transformed into invention grid side call signaling 712 to 711, issues the call control server 703 of invention system terminal place subnet.Call control server 703 is transformed into invention system user side call signaling 713 to 712, issues the terminal 701 of invention system.
When two terminals communicated, 701 invention system users of invention system terminal side media information 714 was given the media delivery server 715 of place subnet.Media delivery server 715 is transformed into invention grid side media information 716 to invention system user side media information 714, issues gateway 705.Gateway 705 is transformed into public network network side media information 717 to invention grid side media information 716, issues public network 707.Public network 707 is transformed into public network user side media information 718 with public network network side media information 717, issues public network terminal 709.
On other direction, 709 public network user sides of public network terminal media information 719 is given public network 707.Public network 707 is transformed into public network network side media information 720 to 719, issues gateway 705.Gateway 705 is transformed into invention grid side media information 721 to 720, issues the media delivery server 715 of invention system terminal place subnet.Media delivery server 715 is transformed into invention system user side media information 722 to 721, issues the terminal 701 of invention system.
The terminal of invention system (to call switching terminal in the following text) moves to another subnet from a subnet under communications status (two subnets belong to same local network, perhaps adhere to the different local networks of same national trunk network separately, perhaps adhere to different national trunk networks separately) after, the sign of the subnet (to call initial subnet in the following text) at place was issued the mobile management server of current place subnet (to call new subnet in the following text) when initiation was this time communicated by letter.The mobile management server of new subnet moves to switching terminal the mobile management server of the information notice initial subnet of new subnet.Its call control server of mobile management server notification of initial subnet and media delivery server are dealt into the call control server and the media delivery server of new subnet with all information of issuing switching terminal, are given to switching terminal by the call control server and the media delivery server of new subnet.Switching terminal is issued the call control server and the media delivery server of new subnet with information, is transmitted to the call control server and the media delivery server of initial subnet by them.The call control server of new subnet and media delivery server only are responsible for the call control server and the information between media delivery server and the switching terminal of initial subnet and are transmitted, and information are not done any processing.The imperceptible switching terminal of subnet at terminal of communicating by letter with switching terminal (to call distant terminal in the following text) and place thereof switches, and still information is issued initial subnet, and receives information from initial subnet.Switch message transmission mode between latter two terminal and path as shown in Figure 8.
801 user side call signalings of distant terminal 802 are given the call control server 803 of its place subnet.803 user side call signalings 802 are transformed into network side call signaling 804, issue the call control server 805 of the initial subnet of switching terminal.805 network side call signalings 804 are transformed into user side signaling 806, issue the call control server 807 of the new subnet of switching terminal.Be left intact for 807 pairs 806, just change source address and destination address, become 808, issue switching terminal 809.
On other direction, 809 user side call signalings of switching terminal 810 are given the call control server 807 of its new subnet.807 pairs 810 pairs are left intact, and just change source address and destination address, become 811, issue the call control server 805 of the initial subnet of switching terminal.Be transformed into network side call signaling 812 for 805 811, issue the call control server 803 of distant terminal place subnet.803 network side call signalings 812 are transformed into user side call signaling 813, issue distant terminal 801.
801 user side media informations of distant terminal 814 are given the media delivery server 815 of its place subnet.815 user side media informations 814 are transformed into network side media information 816, issue the media delivery server 817 of the initial subnet of switching terminal.817 network side media informations 816 are transformed into user side media information 818, issue the media delivery server 819 of the new subnet of switching terminal.Be left intact for 819 pairs 818, just change source address and destination address, become 820, issue switching terminal 809.
On other direction, 809 user side media informations of switching terminal 821 are given the media delivery server 819 of its new subnet.Be left intact for 819 pairs 821, just change source address and destination address, become 822, issue the media delivery server 817 of the initial subnet of switching terminal.Be transformed into network side media information 823 for 817 822, issue the media delivery server 815 of distant terminal place subnet.815 network side media informations 823 are transformed into user side media information 824, issue distant terminal 801.
When distant terminal is the terminal of other public correspondence network, only need the call control server of the distant terminal place subnet among Fig. 8 is changed into gateway, the transmission of Information mode is identical.
Another network of the local network of a kind of cellular wireless local area network Multimedia Mobile Communication Systems proposed by the invention is formed as shown in Figure 9, and this is the situation that local network is connected with soft-switch platform.The difference of this networking mode and networking mode shown in Figure 3 is that in networking mode shown in Figure 9, local network is connected with soft-switch platform.Under this application mode, the national number Analysis server in the local network, authenticating user identification server, webmaster and accounting server, public communication system gateway and internet gateway all no longer need, and function corresponding realizes by soft-switch platform 91.Equipment in the local network only keeps local user's location register 93 and visiting customer location register 94.
Under this application mode, when user's application for registration was received by system, the registrar in the subnet 95 judged that the user is local user or nonlocal user.If the local user, then to local user's location register 93 request registration.If nonlocal user, then to visiting customer location register 94 request registration.Visiting customer location register 94 is received local user's location register request registration of the affiliated local network of register requirement rear line.Local user's location register 93 is to soft-switch platform 91 request registration.Soft-switch platform 91 couples of users authenticate, and notify local user's location register 93 with authentication result.If authentication result is that the user is legal, local user's location register 93 update user information then, and via metropolitan area network 92 to a side (the visiting customer location register 94 of subnet 95 or another local network) who the proposes user's application for registration information that succeeds in registration.If authentication result is that the user is illegal, then local user's location register 93 is sent out registration failure information via metropolitan area network 92 to a side (the visiting customer location register 94 of subnet 95 or another local network) who proposes user's application for registration.After visiting customer location register 94 is received the information of user registration success, update user information, and via metropolitan area network 92 to 95 information that succeed in registration of subnet.After visiting customer location register 94 is received the information of user's registration failure, remove user profile, and via metropolitan area network 92 to 95 registration failure information of subnet.
When the native system user made a call, subnet 95 was issued soft-switch platform 91 with called number.Soft-switch platform 91 is with the subnet controller of the IP address notification caller place subnet 95 of the proxy gateway of own inside.After this subnet controller of caller place subnet 95 is issued proxy gateway in the soft-switch platform with call signaling.After communication was set up, the subnet controller of caller place subnet 95 and the proxy gateway in the soft-switch platform were that calling and called are the medium agency.
Under this application mode, the process of mobile management is identical with network shown in Figure 3.The process of mobile management and soft-switch platform are irrelevant.
The network of national trunk network was formed as shown in figure 10 when a kind of cellular wireless local area network Multimedia Mobile Communication Systems proposed by the invention was used separately in a country.Compare with network composition shown in Figure 2, lacked the international number Analysis server.Except not handling the international call, the job step when network shown in Figure 10 is finished other function is identical with complete network shown in Figure 2 with method.
The network of local network was formed as shown in figure 11 when a kind of cellular wireless local area network Multimedia Mobile Communication Systems proposed by the invention was used separately in an area.Compare with network composition shown in Figure 3, lacked visiting customer location register and national number Analysis server.Except can not handling international and domestic call, the job step when network shown in Figure 11 is finished other function is identical with complete network shown in Figure 3 with method.
Another network of local network was formed as shown in figure 12 when a kind of cellular wireless local area network Multimedia Mobile Communication Systems proposed by the invention was used separately in an area.Compare with network composition shown in Figure 9, lacked visiting customer location register.Except can not handling international and domestic call, the job step when network shown in Figure 12 is finished other function is identical with complete network shown in Figure 9 with method.
Claims (13)
1, a kind of cellular wireless local area network Multimedia Mobile Communication Systems comprises that SPInet-IV constitutes:
The first order is a subnet, is the approach of accessing terminal to network,
The second level is local network, is the metropolitan area network of native system special use, or the VPN of offering on existing metropolitan area network for the native system special use,
The third level is a national trunk network, is the domestic IP backbone of native system special use, or the VPN of offering on existing domestic IP backbone for the native system special use,
The fourth stage is the international long-distance net, is the VPN of offering on international IP backbone,
It is characterized in that subnet is connected on the local network by the subnet controller, local network is crossed route equipment, and to be connected to national distance online, and it is online that national trunk network is connected to international long-distance by routing device.
2, according to the cellular wireless local area network Multimedia Mobile Communication Systems of claim 1, it is characterized in that, described subnet is made up of two layers of local area network (LAN), sub-net controller, a plurality of base station, a plurality of wireless terminal and an a plurality of catv terminal, also can not have catv terminal.
3, according to the cellular wireless local area network Multimedia Mobile Communication Systems of claim 2, it is characterized in that, described terminal is the equipment that the user is directly used in communication, be divided into wireless terminal and two kinds of catv terminals: wireless terminal mobile phone arranged, be connected the PDA of wireless network card, connect wireless network card notebook, connect the desktop computer of wireless network card, catv terminal has the notebook that is equipped with wired network adapter, desktop computer, the network telephone that is equipped with wired network adapter.
4, according to the cellular wireless local area network Multimedia Mobile Communication Systems of claim 2, it is characterized in that described subnet controller comprises: call control server, media delivery server, mobile management server, registrar, IP address management server, subnet management server.
5, according to the cellular wireless local area network Multimedia Mobile Communication Systems of claim 1, it is characterized in that described local network is made up of a metropolitan area network, local user's location register, a visiting customer location register, an authenticating user identification server, national number Analysis server, a plurality of gateway and a webmaster accounting server.
6, according to the cellular wireless local area network Multimedia Mobile Communication Systems of claim 5, it is characterized in that,
Local user's location register is responsible for writing down the positional information of the home subscriber of place local network,
Visiting customer location register is responsible for writing down and is positioned at the place local network at present but is not the user position information of the home subscriber of place local network,
The authenticating user identification server is responsible for the home subscriber of place local network is carried out authentication,
The national number Analysis server is responsible for the called number that does not belong to the place local network is analyzed, and the identification called number is national number or state's External Number, and the identification national number belongs to which local network of present networks, perhaps belongs to any public correspondence network,
Gateway is the interface equipment of present networks and other public correspondence network, and gateway is made up of call control server and media delivery server, finishes signaling conversion and media conversion between present networks and other public correspondence network,
Webmaster and accounting server provide standard interface for webmaster and charge system.
According to the cellular wireless local area network Multimedia Mobile Communication Systems of claim 1, it is characterized in that 7, the online equipment of described national distance has international number Analysis server and network address register, be connected on the domestic IP backbone,
The international number Analysis server is responsible for the called number that does not belong to the country one belongs to's Intranet is analyzed, and the international number Analysis server can be discerned called number and belong to which country which network,
Network address register holds has the IP address of local user's location register of each local network, network address register timing is to the IP address of local user's location register of each local network of Web broadcast, also can accept inquiry, the IP address of local user's location register of certain local network is provided to the inquiry.
8, a kind of method of cellular wireless local area network Multimedia Mobile Communication Systems comprises the steps:
The first step: system search, the subnet controller is regularly issued the base station with oneself characteristic parameter and operating state, markers frame of base station fixed time broadcast, the characteristic parameter and the operating state that wherein comprise the subnet controller, starting up of terminal and finish initialization after, on the predetermined work frequency, receive the markers frame of base station successively, and rest on the best frequency of signal quality;
Second step: to system application IP address, the IP address management server is the IP address of a free time of terminal distribution according to the IP address assignment agreement for IP address assignment, terminal;
The 3rd step: registration and authentication, terminal is applied for the registration of to system, whether registrar is that the local user determines it is to apply for the registration of to local user's location register according to the user, still apply for the registration of to visiting customer location register, after visiting customer location register is received application for registration, local user's location register of local network is applied for the registration of under the user, after local user's location register is received application for registration, judge whether that according to the current state of user needs authenticate the user, if desired, then send out authentication request to the authenticating user identification server, the authenticating user identification server authenticates the user according to the authenticating user identification agreement, and authentication result is fed back to local user's location register, if user identity does not need authentication, perhaps authentication result is that the user is legal, system update user profile then, and send out to terminal and to succeed in registration, if authentication result is that the user is illegal, then registration failure is sent out to terminal by system
The 4th step: standby, the terminal after succeeding in registration enters holding state, under holding state, terminal can make a call or call accepted, and terminal when a subnet moves to another subnet, need be applied for the IP address again under holding state, re-register, its process is identical during with start just;
The 5th step: communication, in communication process, the Signalling exchange that belongs between the user of system is transmitted by the call control server of place subnet separately, medium pass through the media delivery server forwards of place subnet separately alternately, Signalling exchange between the user of system and the user of other system is by the call control server and the gateway forwards of system user place subnet, and medium pass through the media control server and the gateway forwards of system user place subnet alternately;
The 6th step: withdraw from, when terminal closedown or after leaving service area, all are retained in registrar and all are eliminated with relevant this terminal information in the visiting customer location register.
9, the method of cellular wireless local area network Multimedia Mobile Communication Systems according to Claim 8, it is characterized in that, its concrete steps are: at first forward S502 to from step S501, fixed time broadcast markers frame, behind the starting up of terminal, forward step S503 to, search channel, after search procedure is finished, forward step S504 to, judge whether to find available channel, if do not find available channel, then return step S503, continue search channel,, then rest on the optimum channel if find not only available channel, forward step S505 then to, terminal after the IP application IP addresses are received by system, forwards step S506 to system application IP address to, give IP address of terminal distribution, after terminal is received the IP address, forward step S507 to, apply for the registration of to system, after application for registration is received by system, forward step S508 to, judge whether and to authenticate user identity, if do not need authentication, then forward step S513 to, system update user profile, and send out the information of succeeding in registration to terminal, authentication if desired, then forward step S509 to, user identity is authenticated, forward step S510 after having authenticated to, judge according to authentication result, if the user is illegal, then forward step S511 to, registration failure information is sent out to terminal by system, after terminal is received registration failure information, forward step S512 to, power cut-off; If the user is legal, then forward step S513 to, system update user profile, and send out the information of succeeding in registration to terminal, after terminal is received the information of succeeding in registration, forward step S514 to, enter holding state, under holding state, terminal can be initiated and receipt of call, if the user shuts down or leaves service area under holding state, then forwards step S516 to, terminal logs off, system update user profile; If terminal is crossed over subnet under holding state, promptly enter another subnet from a subnet, then forward step S503 to, again search channel if terminal makes a call or called out, then forwards step S519 to, system establishes a communications link, after communicating to connect foundation, forward step S520 to, terminal enters communications status; If sign off then forwards step S514 to, terminal enters holding state; If terminal cross subnet in communication process then forwards step S523 to, terminal is search channel again, system gives terminal distribution IP address again, and terminal re-registers, if registration failure, then return step S514, terminal enters holding state, if succeed in registration, then forward step S525 to, system transfers to new subnet with communicating to connect of this terminal, i.e. the subnet at the current place of terminal, communicate to connect shifted after, return step S519, terminal reenters communications status.
10, the method for cellular wireless local area network Multimedia Mobile Communication Systems according to Claim 8, the step of information exchange is as follows between two terminals in the system: 601 user side call signalings of calling terminal 602 are given the call control server 603 of its place subnet, call control server 603 is transformed into network side call signaling 604 to user side call signaling 602, issue the call control server 605 of terminal called place subnet, call control server 605 is transformed into user side call signaling 606 to network side call signaling 604, issues terminal called 607;
On other direction, 607 user side call signalings of terminal called 608 are given the call control server 605 of its place subnet, call control server 605 is transformed into network side call signaling 609 to user side call signaling 608, issue the call control server 603 of calling terminal place subnet, call control server 603 is transformed into user side call signaling 610 to network side call signaling 609, issues calling terminal 601;
When the calling and called terminal communicates, 601 user side media informations of calling terminal 611 are given the media delivery server 612 of its place subnet, media delivery server 612 is transformed into network side media information 613 to user side media information 611, issue the media delivery server 614 of terminal called place subnet, media delivery server 614 is transformed into user side media information 615 with network side media information 613, issues terminal called 607;
On other direction, 607 user side media informations of terminal called 616 are given the media delivery server 614 of its place subnet, media delivery server 614 is transformed into network side media information 617 to user side media information 616, issue the media delivery server 612 of calling terminal place subnet, media delivery server 612 is transformed into user side media information 618 to network side media information 617, issues calling terminal 601.
11, the method for cellular wireless local area network Multimedia Mobile Communication Systems according to Claim 8 is characterized in that, between the terminal of system terminal and other public correspondence network termination system between the step of information exchange as follows:
701 system user sides of system terminal call signaling 702 is given the call control server 703 of place subnet, call control server 703 is transformed into grid side call signaling 704 to system user side call signaling 702, issue gateway 705, gateway 705 is transformed into public network network side call signaling 706 to grid side call signaling 704, issue public network 707, public network 707 is transformed into public network user side call signaling 708 with public network network side call signaling 706, issues public network terminal 709;
On other direction, 709 public network user sides of public network terminal call signaling 710 is given public network 707, public network 707 is transformed into public network network side call signaling 711 to 710, issue gateway 705, gateway 705 is transformed into grid side call signaling 712 to 711, issue the call control server 703 of system terminal place subnet, call control server 703 is transformed into system user side call signaling 713 to 712, issues the terminal 701 of system;
When two terminals communicate, 701 system user sides of system terminal media information 714 is given the media delivery server 715 of place subnet, media delivery server 715 is transformed into grid side media information 716 to system user side media information 714, issue gateway 705, gateway 705 is transformed into public network network side media information 717 to grid side media information 716, issue public network 707, public network 707 is transformed into public network user side media information 718 with public network network side media information 717, issues public network terminal 709;
On other direction, 709 public network user sides of public network terminal media information 719 is given public network 707, public network 707 is transformed into public network network side media information 720 to 719, issue gateway 705, gateway 705 is transformed into grid side media information 721 to 720, issue the media delivery server 715 of system terminal place subnet, media delivery server 715 is transformed into system user side media information 722 to 721, issues the terminal 701 of system.
12, the method for cellular wireless local area network Multimedia Mobile Communication Systems according to Claim 8, the message transmission step between latter two terminal of the switching of system is as follows:
801 user side call signalings of distant terminal 802 are given the call control server 803 of its place subnet, 803 user side call signalings 802 are transformed into network side call signaling 804, issue the call control server 805 of the initial subnet of switching terminal, 805 network side call signalings 804 are transformed into user side signaling 806, issue the call control server 807 of the new subnet of switching terminal, be left intact for 807 pairs 806, just change source address and destination address, become 808, issue switching terminal 809;
On other direction, 809 user side call signalings of switching terminal 810 are given the call control server 807 of its new subnet, 807 pairs 810 pairs are left intact, just change source address and destination address, become 811, issue the call control server 805 of the initial subnet of switching terminal, be transformed into network side call signaling 812 for 805 811, issue the call control server 803 of distant terminal place subnet, 803 network side call signalings 812 are transformed into user side call signaling 813, issue distant terminal 801;
801 user side media informations of distant terminal 814 are given the media delivery server 815 of its place subnet, 815 user side media informations 814 are transformed into network side media information 816, issue the media delivery server 817 of the initial subnet of switching terminal, 817 network side media informations 816 are transformed into user side media information 818, issue the media delivery server 819 of the new subnet of switching terminal, be left intact for 819 pairs 818, just change source address and destination address, become 820, issue switching terminal 809;
On other direction, 809 user side media informations of switching terminal 821 are given the media delivery server 819 of its new subnet, be left intact for 819 pairs 821, just change source address and destination address, become 822, issue the media delivery server 817 of the initial subnet of switching terminal, be transformed into network side media information 823 for 817 822, issue the media delivery server 815 of distant terminal place subnet, 815 network side media informations 823 are transformed into user side media information 824, issue distant terminal 801.
13, a kind of method of cellular wireless local area network Multimedia Mobile Communication Systems, it is characterized in that, terminal using system implicit IP address, it is private IP address, each subnet uses an IP address space, different sub-network can use identical IP address space, also can use different IP address spaces.
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| CN 200310124275 CN1635805A (en) | 2003-12-29 | 2003-12-29 | A cellular wireless LAN mobile multimedia communication system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110234017A (en) * | 2007-02-02 | 2019-09-13 | 赛乐得科技(北京)有限公司 | The method and apparatus of cross-layer optimizing in multimedia communication with different user terminals |
| US11456987B1 (en) | 2021-05-07 | 2022-09-27 | State Farm Mutual Automobile Insurance Company | Systems and methods for automatic internet protocol address management |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110234017A (en) * | 2007-02-02 | 2019-09-13 | 赛乐得科技(北京)有限公司 | The method and apparatus of cross-layer optimizing in multimedia communication with different user terminals |
| CN110234017B (en) * | 2007-02-02 | 2021-04-13 | 赛乐得科技(北京)有限公司 | Method and apparatus for cross-layer optimization in multimedia communication with different user terminals |
| US11456987B1 (en) | 2021-05-07 | 2022-09-27 | State Farm Mutual Automobile Insurance Company | Systems and methods for automatic internet protocol address management |
| US12113769B2 (en) | 2021-05-07 | 2024-10-08 | State Farm Mutual Automobile Insurance Company | Systems and methods for automatic internet protocol address management |
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