CN1905502A - Multimedia network and application thereof - Google Patents

Abstract

The invention relates to multimedia network and the application thereof, on the basis of making fine and concrete analysis on video service demands, applying a truly original thinking mode to improve the existing multimedia network structure comprising network method, network structure and the application thereof, and putting forward that video services in multimedia can be separately processed, by method of delivery, control and communication of video media, according to different video service demands: decomposing or integrating multimedia by municipal-area network (MAN) convergence center switcher, i.e. distributing voice fax, data and video media broadcast TV in access network to the MAN; contrarily, integrating separate media of the MAN and sending them to the access network. And it is simple to process and has high efficiency, and further improves switcher performance. And it solves the problem that large-flow video service development is limited by network structural technique, network equipment technique and equipment capacity bottleneck.

Description

A kind of multi-media network and application thereof

Technical field:

The present invention relates to multimedia network technology, specifically be meant and a kind ofly converge center switch by metropolitan area network and carry out multimedia decomposition or integrated, promptly the speech fax in the Access Network, data, video media radio and television are distributed to metropolitan area network; Otherwise, with metropolitan area network integrated structure and the application of handling thereof that sends to Access Network of medium out of the ordinary.

Background technology:

NGN (Next Generation Network) is one of the most popular technology of present field of telecommunications, and relevant test is carried out on each carrier network at home.The rise of NGN comes from people the demand of telecommunication service is presented broadband, variation and personalized trend.The data service development rapidly on the particularly present IP network, will be above existing voice service, and image, video and multimedia service also present ascendant trend, but traditional be carried as the needs that main Circuit Switching Network can not satisfy new business such as the data development of demblee form with speech business.This brand-new network that integrates speech fax, data, video traffic of NGN produces under this demand just.

Though the great demand in video traffic broadcast television content and market is arranged, integrate the existing omnipotent network of speech, data and video traffic, because of causing its big flow video traffic development, the bottleneck of its network configuration, network equipment capacity is restricted.

In the omnipotent network configuration (as shown in Figure 1) of one, although its video flow accounts for more than 80% of network traffics, network will be handled the different demands of different medium, causes no primary and secondary at existing multimedia service, and efficient is low, complex management.

Equally, multimedia service is not that program request, broadcasting for the big flow of video designs in the omnipotent web network equipment switch router of one.Therefore will handle the different demands of different medium, it is low efficient to occur, complex management, and capacity is little, the situation that price is high.

The existing switch router design is only utilized the clean culture function of exchange for input and output symmetry clean culture exchange design, has added the broadcasting function of exchange of low discharge.Information converges the center, and when the broadcasting of big flow, order video enter switch router, switch router will select part broadcasting, order video to be sent to output port.Because input and output symmetry clean culture exchange design, a large amount of input port bandwidth are taken by big flow video, and exchange and output port bandwidth are wasted.For example, video media network switch one thousand families card, input bandwidth 53G, output bandwidth 21G, the essential input and output 53G switch that uses, waste 32G output bandwidth.Simultaneously the switch router rate request is also improved greatly.

Filtration safe in utilization often is necessary in router.Why router becomes desirable safety " checkpoint ", is because they are entrance and exits of network.After establishment on the router is called as the complex rule of access control list (ACL), router will overlap rule according to this and check each packets of information.For example, these rules can only allow the data of special authorized user visited company.

For conventional router, be a time-consuming journey according to safety regulation inspection message bag.After router found in each packets of information the 3rd layer and the 4th layer of information, it must compare these information and rule.Enabling safety filtering can make the speed of router slower.When Effect on Performance when too big, is just needed to use special installation to share.Even the multilayer switch router, they also can face the challenge when (keeping the linear speed performance simultaneously) in this function of execution.When enabling security functions, switch/router speed also can slow down.

Now the Internet video user also seldom, but amplification is very big, the demand of the network bandwidth was doubled in 14 months.In the development of above-mentioned core router structure, the big data on flows in the network will be transmitted by core router, and chip speed doubled by 18 months.Therefore, the bottleneck of chip will limit the further raising of router performance.

In sum, existing multimedia network architecture because the video traffic demand is lacked sectionalization, is taken over traditional thoughtcast, handle simply, cause big flow video traffic development to be subjected to the restriction of bottlenecks such as network configuration technology, network equipment technology, place capacity.

Summary of the invention:

Purpose of the present invention for solve multi-media network based on prior art exist above-mentioned such as: because of the problems such as restriction of bottlenecks such as network configuration technology, network equipment technology, place capacity to the video traffic development, and the video traffic in multimedia that proposes can distinctly be handled, press the different video business demand, carry out a kind of multi-media network and the application thereof of a kind of metropolitan area network video media individual processing network configuration of video media dispensing, video media scheduling, video media communication process.

Its method is:

As the distribution network of video media metropolitan area network broadcasting, the order video media content of video media central store are delivered to information and converge center switch; The communication network of video media metropolitan area network is delivered to information with the dispatch of user of access network communication and signaling, video media and is converged center switch or video media center; The scheduling net of video media metropolitan area network is delivered to the different video media center with the video media content of video media central store.

The metropolitan area network center of converging relates to the different safety regulation inspections that need not handle different medium to the metropolitan area network decomposition network, the inspection of single medium safety regulation is simple, the little a kind of metropolitan area network information of switch speed influence is converged center switch, its effect can be distributed to Access Network video media radio and television, speech fax, data the separate network that can distinctly handle video media, speech fax, data of metropolitan area network, otherwise, can carry out the multimedia of metropolitan area network and decompose or integrated network exchange the integrated Access Network that is dealt into of the various medium of processing out of the ordinary of metropolitan area network.

Because the Access Network flow is little, network is simple, though to handle the different demands of different medium, also uncomplicated.And the metropolitan area network flow is big, network complexity, thereby adopt multimedia is resolved into separately independently network, and the network as the speech fax of processing out of the ordinary, data, video media wherein, resolves into the separate network of video media etc. at least.

Converge center switch in information, video media distribution network, video media communication network information are intercoursed.Video media communication network information has telex network and signaling.Telex network information and communication signaling are entered by Access Network and converge center switch, and another converges center switch to transmit arrival in the video media communication network, enters Access Network.The signaling of subscriber-related video media transmits the video media center that arrives in the video media communication network, and video media center control of video media content transmits in the video media distribution network, arrives and converges center switch, enters Access Network.

At the video media center, video media distribution network, video media scheduling net, video media communication network information are intercoursed.The signaling of subscriber-related video media transmits the video media center that arrives in the video media communication network, and video media center control of video media content transmits in the video media distribution network and arrives the user.Video media center video media dispatch transmits another video media center of arrival in the video media communication network, and this video media center control of video media content is dispatched network transmission at video media, arrives each video media center.

The heart channel of Hang-Shaoyin distribution network converges center switch with each information and is connected with broadcast mode in the video media of broadcasting center and formations such as program request center.Broadcasting demand information is delivered to distribution network with broadcast mode and is respectively converged center switch.Respectively converging center switch does not handle and does not transmit the video broadcasting program request of converging in the metropolitan area network between center switch.Then to converging the speed of center switch, the big attenuating of capacity requirement.

The video broadcasting signaling only converges between center switch in Access Network and information and transmits.Metropolitan area network does not have the video broadcast signaling.

Metropolitan area network converges center switch, adopts the video asymmetric exchange of input/output terminal port band width or local address exchange or operation exchange or their combination.

Through Service Switching Module, packets of information is delivered to telephone network, data network, the local media center of isomery gateway, the network equipment of two-way exchange module correspondence according to data type sign in the head of packet.

The center switching method of converging comprises: 1. local address switching method, 2. service switching method.

Hierarchy and data type sign according to the ordering of packets of information local address, packets of information is delivered to Service Switching Module, server, Access Network, the two-way exchange module that connects through the one-way exchange module, and input to Access Network Multiplexing module, the full Fabric Interface of video media communication network, Service Switching Module and server module or export one-way exchange module, the full Fabric Interface of video media communication network, Service Switching Module and server module to through it.

Only, packets of information is delivered to input, video media distribution network program request one-way interfaces, Multiplexing module, video media distribution network broadcasting unidirectional interface and the two-way exchange module of the one-way exchange module of Access Network according to the hierarchy of packets of information local address ordering.

Each information converges center switch and only accepts information such as the video broadcasting of the distribution network transmission of the video media metropolitan area network of media center through connecting with broadcast mode, program request.Each information converges and does not transmit distribution network information between the center switch.

The video broadcasting signaling only converges between the center switch in Access Network and information and transmits.

Converge center switch, video media center, user of access network equipment, management equipment and send packets of information, data type sign in the local address, set information packet header as information source.Converge center switch according to data type sign in the packets of information that receives, the distributing information bag is to corresponding network interface.

Following data type identification list is enumerated the data type identification information of some video media net examples.

The data type identification list

The type of data type identification information	Function
		Data	Heterogeneous network data internet transmission controlling packet and packets of information
Phone	Heterogeneous network phone transmission controlling packet and packets of information
		Local ordering	Controlling packet and packet
Spot broadcasting	Controlling packet and packet
		Program request	The communication network controlling packet
Broadcasting	The communication network controlling packet
		Program request	The distribution network packet
Broadcasting	The distribution network packet
		The video media scheduling	Scheduling net packet
The video media scheduling	The communication network controlling packet

A kind of multi-media network of the present invention is made up of metropolitan area network, Access Network, backbone network, is characterized in that metropolitan area network converges the center with video media metropolitan area network, isomery metropolitan area network and metropolitan area network information and is connected with communication modes with subscriber card;

Wherein, metropolitan area network information converges the high speed multi-layer switches, Access Network, video media metropolitan area network of center and backbone network and is connected with communication modes with the isomery metropolitan area network through gateway.

Described multi-media network, its video media metropolitan area network converges the center by distribution network, communication network, scheduling net and the information of video media metropolitan area network and the video media center is formed.

The video media metropolitan area network can be star-like, star-like, the tree type of ring, reticular pattern, half reticular pattern, mixed type etc.

The distribution network of the heart channel of Hang-Shaoyin video media metropolitan area network converges center switch with broadcast mode with each information and is connected in the video media, and links to each other with other video media centers through the scheduling net of video media metropolitan area network.The distribution network of video media metropolitan area network is connected with the metropolitan area network information center of converging with communication modes with communication network.

Described multi-media network, its multi-media network metropolitan area network information converge local video medium network interface that the video media metropolitan area network interface be made up of the distribution network interface of video media metropolitan area network, communication network interface and scheduling network interface at the center and spot broadcasting network interface, program request network interface form and data network interface, telephone network interface, Access Network interface, backbone interface and metropolitan area network information and converge center switch and be connected with communication modes.

By metropolitan area network information converge center switch its with comprise distribution network broadcasting unidirectional interface, the program request one-way interfaces of video media metropolitan area network, full Fabric Interface of the communication network of video media metropolitan area network and local video media broadcast interface and program request interface and data network interface, telephone network interface, the Access Network interface is connected with communication modes with subscriber card.

Multi-media network of the present invention, its subscriber card comprises distribution network broadcasting unidirectional interface, the program request one-way interfaces of video media metropolitan area network, the full Fabric Interface of the communication network of video media metropolitan area network, local video media broadcast interface and program request interface and data network interface, telephone network interface, Access Network interface and comprise the Access Network Multiplexing module, the one-way exchange module, Service Switching Module, two-way exchange module, server module.

Described multi-media network, wherein, the Service Switching Module input is connected with communication modes with local video media broadcast interface, local video media-on-demand interface, data network interface, telephone network interface, two-way exchange module.Service Switching Module output is connected with communication modes with local video media broadcast interface, local video media-on-demand interface, data network interface, telephone network interface, two-way exchange module.

Multi-media network of the present invention, its Access Network constitute tree type or chain or ring-like web frame by subscriber equipment, user gateway, Access Network switch, server and converge center switch with metropolitan area information and be connected.

A kind of metropolitan area network switch of the present invention, the asymmetric exchange design of video separate network video input/output terminal port band width does not improve the switch rate request, capacity is big, price is low, lowers the restriction of the bottleneck of chip to former exchanger capacity, and switch performance is further improved.

A kind of metropolitan area network exchanger user card of the present invention comprises: video media distribution network program request one-way interfaces and Multiplexing module, video media distribution network broadcasting unidirectional interface, the full Fabric Interface of video media communication network and local video media-on-demand interface, local video media broadcast interface and data network interface, telephone network interface, Access Network interface, one-way exchange module, Service Switching Module, two-way exchange module, server module.

Wherein, Switching Module comprises: local address and local address Switching Module, data type sign and data type sign Switching Module (describe in detail referring to PCT:

02821413.7 the method for a multimedia communication, system and data structure B;

02821427.7 the data structure of a multimedia communication, method and system A; 02821401.3 the system of a multimedia communication, method and data structure A+B)

Subscriber card of the present invention relates to Switching Module and comprises that Service Switching Module identifies according to data type in the packets of information local address, delivers to packets of information telephone network, data network, tannoy, local ordering net, the two-way exchange module map network equipment of isomery gateway.The Service Switching Module input is connected with local video media-on-demand interface, local video media broadcast interface, data network interface, telephone network interface, two-way exchange module; Service Switching Module output is connected with local video media-on-demand interface, local video media broadcast interface, data network interface, telephone network interface, two-way exchange module.

The two-way exchange module is delivered to Service Switching Module, server, Access Network, one-way exchange module according to the hierarchy and the data type sign of the ordering of packets of information local address with packets of information.The input of two-way exchange module is connected with Access Network Multiplexing module, the full Fabric Interface of video media communication network, Service Switching Module, server module.The output of two-way exchange module is connected with one-way exchange module, the full Fabric Interface of video media communication network, Service Switching Module, server module.

The one-way exchange module only according to the hierarchy of packets of information local address ordering, is delivered to Access Network with packets of information.The one-way exchange module is for transmitting the clean culture multicast content to Access Network.The input of one-way exchange module is connected with video media distribution network program request one-way interfaces Multiplexing module, video media distribution network broadcasting unidirectional interface, two-way exchange.The output of one-way exchange module is connected with the Access Network interface.

Integrate speech fax, data, radio and television video traffic at the Access Network network, handle video media radio and television, speech fax, data at the metropolitan area network separate network.Because of the Access Network flow is little, network is simple, though to handle the different demands of different medium, also uncomplicated.The metropolitan area network flow is big, the network complexity, and separately network is not handled the different demands of different medium, and the efficient height is handled simple.

Backbone network is built video media scheduling net and video media communication network, or builds jointly and be the media communication net.No video medium distribution network.

Access Network does not have video medium distribution network, video media scheduling net.Has only the video media communication network.

The video media communication network is by video media center (broadcasting center, program request center), and passage converges center switch and links to each other.Send user of access network communication and signaling.

Access Network is by subscriber equipment, user gateway, and the Access Network switch, server, the metropolitan area convergence switch constitutes the tree type, chain, ring-like net.User's speech fax, data and video broadcasting TV and communication demand signalling send server.The server process signaling, if request can be accepted, calling and called the user connect, and begins communication.

In sum, the present invention is carrying out the video traffic demand on the basis of careful concrete analysis, use brand-new thoughtcast,, comprise that network-building method, network configuration and application thereof improve existing multimedia network architecture, big flow video is distinctly handled, need not handle different demands, so handle simply the efficient height because of different medium, lower of the restriction of the bottleneck of chip, further improve switch performance former exchanger capacity.Solve big flow video traffic development and be subjected to the problem that network configuration technology, network equipment technology, place capacity bottleneck limit.

About definition of the present invention:

Network: transmit the functional network of electronic information, can be the physical network that physical equipment makes up, the also communication network that can be made up by the physical channel of physical equipment also can be by the logical channel of physical equipment, the virtual communication network that tunnel makes up, and combination.

Interface: for the network function interface, can be hardware, also can be software, or the logic virtual interface.

User's service signaling: by converging central server and subscriber equipment Coordination Treatment, through service request, the service audit, service is sent to, and the service log step is finished.Comprise users broadcasting, postpone broadcasting, program request, communication signaling etc.

The device service signaling: by the relevant devices Coordination Treatment, through service request, the service audit, service is sent to, and the service log step is finished.

Postpone broadcasting: cry on schedule again and broadcast,, after real-time broadcast singal storage, broadcast away simultaneously at a plurality of channels by certain delay time lag in media center.The user watches each to postpone broadcasting channel, and realizing puts upside down watches former broadcasting channel, as the program of this broadcasting channel of program request.Popular film is broadcasted away with postponing a plurality of channels of broadcasting simultaneously, and the user can put upside down and watch, as program request.Broadcast on schedule, only take fixedly radio network bandwidth, conserve bandwidth.Broadcasting among the present invention comprises real-time broadcasting and postpones broadcasting.

Video-mail: watching of video-mail, realized by local ordering equipment and telex network.Video-mail produces, by the communicate by letter realization of user with local ordering equipment.

(local address and local address Switching Module and data type sign and Service Switching Module are described in detail referring to PCT:

02821413.7 the method for a multimedia communication, system and data structure B;

02821427.7 the data structure of a multimedia communication, method and system A;

02821401.3 the system of a multimedia communication, method and data structure A+B).

Address layer:

The exchanges data of MP network relies on the address of packet fully and realizes.MP adopts the 48bit geocoding and the frame structure of Ethernet, therefore can realize the exchange of MP packet with Ethernet switch.But different with the randomization address assignment of Ethernet, but MP founded the network address uniqueness, can locate qualitative function:

Bit	8	8	8	8	16
						Implication	Flag	WS			AS

The title of each section is in the MP network address:

1) data type identifier (Flag) is used for identifying some special signaling frame and network management datas, and can carry out identification to the data attribute, adopts DCAF or SCAF technology, effectively packet is directed to corresponding apparatus or business.

2) wide area barrier (WS-Wide area Section) is used for identifying with different levels backbone network address, is divided into three son sections by the zone, represents World Wide Web, national net and urban network respectively.

3) insert barrier (AS-Access Section), be used for identifying with different levels Access Network address, be divided into the son section of a plurality of random lengths, represent the address of community, residential building respectively by different topological structures.

The MP network address has 4 distinguished characteristics:

1) physical port binding (AOPP), terminal address are determined to possess the authentification of user function of the personation taken precautions against by network.

2) hierarchy of ordering (HANS), but positioning function possessed, defined clear and definite hierarchical structure, that is: international, intercity, metropolitan area, zonally-graded coding scheme.Owing to adopt MP local address routing algorithm (PAR), the addressing range of each layer switch can be limited within the local space, the structure of MP switch is greatly simplified.

3) the data type address (D/SCAF) of " band color ", but qualitative function possessed.The MP switch according to " color " of the network address (Flag), strict scope of activities, rule of conduct and the data distribution that limits each packet resisted assault effectively, guarantees fail safe and unification of three nets on the MP network configuration.

Following data type identification list is enumerated the data type identification information of some examples.Though the example of enumerating in the data type identification list has been described the data type identification information (as clean culture and multi-point) of dissimilar services, but it is evident that, the one of ordinary skilled in the art can be used for other purposes with this data type identification information, come from (source node) or be sent to the type of (destination node) equipment as the identifying information bag, and do not exceed scope of the present invention.As following will the argumentation, the data type identification information has been assisted the processing of switch to bag, thereby makes network can adopt simple more switch.

The data type identification list

The type of data type identification information	General utility functions
		The foundation of clean culture	Set up uplink packet filtration device (ULPF) in one or more switches in transmission path
Unicast data	Bag of signal is a packets of information in unicast services
		The termination of clean culture	Uplink packet filtration device resets in one or more switches in transmission path
The foundation of multi-point	Link table and uplink packet filtration device are set in the one or more switches in transmission path
		The multi-point data	Bag of signal is a packets of information in the multi-point service
Keeping of multi-point	The state information of safeguarding the data value in the link table in the switch on the transmission path and/or collecting the multi-point service is (as the error rate and the information of losing

	The number of bag)
		The termination of multi-point	Reset in one or more switches in transmission path link table and uplink packet filtration device discharge the service numbers that is kept
Inquiry	Illustrate that comes from an inquiry of asking assembly, the recipient of query requests delivers to the request assembly to Query Result

Description of drawings:

Fig. 1 is existing NGN schematic network structure;

Fig. 2 is a multimedia network architecture schematic diagram of the present invention;

Fig. 3 converges center switch and media center connection layout for the information of medium metropolitan area network structure of the present invention;

Fig. 4 converges center switch and one thousand families card input/output interface schematic diagram for information of the present invention;

Fig. 5 converges the center switch structural representation for information of the present invention;

Fig. 6 is a full switching fabric schematic diagram of the present invention;

Fig. 7 is an one thousand families card structure schematic diagram of the present invention;

Fig. 8 is a media center connection layout schematic diagram of the present invention;

Fig. 9 is a media center structural representation of the present invention;

Figure 10 is an Access Network communication flow diagram in the same card of the present invention;

Figure 11 is an Access Network communication flow diagram between the adjacent card of same switch of the present invention;

Figure 12 is Access Network of the present invention-video media communication network communication flow diagram;

Figure 13 broadcasts communication flow diagram for Access Network of the present invention-video site.

Figure 14 is Access Network of the present invention-video net broadcast communication flow chart;

Figure 15 is Access Network-the Internet of the present invention, Access Network-telephone communication flow chart;

Figure 16 is Access Network of the present invention-spot broadcasting communication, Access Network-local ordering communication process block diagram;

Figure 17 is of the present invention to be media center program request flow chart;

Figure 18 is of the present invention to be media center scheduling flow figure.

Embodiment:

The invention will be further described below in conjunction with accompanying drawing

A kind of network-building method of multi-media network comprises following content:

1. converge center switch by metropolitan area network and carry out multimedia decomposition or integrated, promptly the video media radio and television in the Access Network, speech fax, data are distributed to metropolitan area network, wherein, at least the video media transmission is a separate network, and it is through distribution network, communication network, scheduling network transmission information; Otherwise, with the metropolitan area network integrated Access Network of handling that sends to of medium out of the ordinary.

2. metropolitan area network converges center switch, adopts the video asymmetric exchange of input/output terminal port band width or local address exchange or operation exchange or their combination.

According to data type sign in the head of packet through Service Switching Module, packets of information is delivered to telephone crosstalk, data data network, the local media center of isomery gateway, the network equipment of two-way exchange module correspondence.

4. hierarchy and the data type according to the ordering of packets of information local address identifies, packets of information is delivered to Service Switching Module, server, Access Network, the two-way exchange module that connects through the one-way exchange module, and input to Access Network Multiplexing module, the full Fabric Interface of video media communication network, Service Switching Module and server module or export one-way exchange module, the full Fabric Interface of video media communication network, Service Switching Module and server module to through it.

5. only according to the hierarchy of packets of information local address ordering, packets of information is delivered to input, video media distribution network program request one-way interfaces, Multiplexing module, video media distribution network broadcasting unidirectional interface and the two-way exchange module of the one-way exchange module of Access Network.

6. each information converges video broadcasting, the IP Information On Demand of the distribution network dispensing of only accepting the video media metropolitan area network of media center through connecting with broadcast mode between the center switch.

7. video broadcasting signaling only converges between the center switch in Access Network and information and transmits.

Multi-media network of the present invention is made up of metropolitan area network, Access Network, backbone network, and its metropolitan area network converges the center by video media metropolitan area network, isomery metropolitan area network and metropolitan area network information and is connected with communication modes with subscriber card.

Wherein, metropolitan area network information converges the high speed multi-layer switches, Access Network, video media metropolitan area network of center and backbone network and is connected with communication modes with the isomery metropolitan area network through gateway.

Described multi-media network, its video media metropolitan area network converges the center by distribution network, communication network, scheduling net and the information of video media metropolitan area network and the video media center is formed.

The distribution network of the heart channel of Hang-Shaoyin video media metropolitan area network converges center switch with broadcast mode with each information and is connected in the video media, and links to each other with other video media centers through the scheduling net of video media metropolitan area network;

The distribution network of video media metropolitan area network is connected with the metropolitan area network information center of converging with communication modes with communication network.

Multi-media network metropolitan area network information converges center and the video media metropolitan area network interface of being made up of distribution network interface, communication network interface and the dispatch interface of video media metropolitan area network and the local video medium network interface of being made up of spot broadcasting network interface, program request network interface and data network interface, telephone network interface, Access Network interface, backbone interface and metropolitan area network information and converges center switch and be connected with communication modes.

By metropolitan area network information converge center switch its with comprise distribution network broadcasting unidirectional interface, the program request one-way interfaces of video media metropolitan area network, full Fabric Interface of video media communication network and local video media broadcast interface and program request interface and data network interface, telephone network interface, the Access Network interface reaches with its corresponding interface except that the full Fabric Interface of video media communication network and comprises Multiplexing module, the one-way exchange module, Service Switching Module, the two-way exchange module, server module is connected with communication modes with subscriber card.

The present invention relates to distribution network broadcasting unidirectional interface, program request one-way interfaces that user's khaki comprises the video media metropolitan area network, the full Fabric Interface of the communication network of video media metropolitan area network, local video media broadcast interface and program request interface and data network interface, telephone network interface, Access Network interface and comprise Access Network Multiplexing module, one-way exchange module, Service Switching Module, the two-way exchange module, server module.

Described multi-media network, its Service Switching Module input is connected with communication modes with local video media broadcast interface, local video media-on-demand interface, data network interface, telephone network interface, two-way exchange module;

Service Switching Module output is connected with communication modes with local video media broadcast interface, local video media-on-demand interface, data network interface, telephone network interface, two-way exchange module.

Multi-media network of the present invention, its Access Network constitute tree type or chain or ring-like web frame with subscriber equipment, user gateway, Access Network switch, server and are connected with metropolitan area information convergence switch.

The information that is depicted as a kind of multi-media network as accompanying drawing 3,4,5 converges the center, with the video media net, and local video medium net, data gateway, telephony gateway connects.

The video media net comprises, the video media distribution network, and video media scheduling net, the video media communication network, information converges the center, and the video media center constitutes.

Local video medium net comprises local ordering net, radio network, gateway.

When the Access Network calling subscriber sets up the speech fax, when data connect, at the metropolitan area convergence switch, establishes a connection to the isomery gateway, connect phone, data network.When the calling subscriber sets up the connection of local video radio and television,, establish a connection to local media at the metropolitan area convergence switch.When the calling subscriber sets up the connection of video broadcasting TV,, establish a connection to the video media net at the metropolitan area convergence switch.

When the Access Network called subscriber sets up speech fax, data connection, at the metropolitan area convergence switch, phone, data network is by the isomery gateway, and the Access Network called subscriber connects.When the called subscriber set up the connection of local video radio and television, local media established a connection to the Access Network called subscriber at the metropolitan area convergence switch.When the called subscriber set up the connection of video broadcasting TV, the video media net established a connection to the Access Network called subscriber at the metropolitan area convergence switch.

Accompanying drawing 2 is depicted as the video media net.Big flow video broadcast content and on-demand content be placed on respectively on the independent passage of the video media distribution network of video net transmit.Transmit on-demand content with broadcast channel, on-demand content transmits on independent video media distribution network passage.

The video media network configuration comprises metropolitan area network video media distribution network, metropolitan area network video media scheduling net, and metropolitan area network video media communication network metropolitan area network information converges the center, the video media center.

The video media distribution network is delivered to the broadcasting demand video media content of video media central store and is converged center switch.

The video media communication network is delivered to center switch or the video media center of converging with user of access network communication and signaling.

Video media scheduling net is delivered to the different video media center with the video media content of video media central store.

Converge center switch in information, video media distribution network, video media communication network information are intercoursed.Video media communication network information has telex network and signaling.Telex network information and communication signaling are entered by Access Network and converge center switch, and another converges center switch to transmit arrival in the video media communication network, enters Access Network.The signaling of subscriber-related video media transmits the video media center that arrives in the video media communication network, and video media center control of video media content transmits in the video media distribution network, arrives and converges center switch, enters Access Network.

At the video media center, video media distribution network, video media scheduling net, video media communication network information are intercoursed.The signaling of subscriber-related video media transmits the video media center that arrives in the video media communication network, and video media center control of video media content transmits in the video media distribution network and arrives the user.Video media center video media dispatch transmits another video media center of arrival in the video media communication network, and this video media center control of video media content is dispatched network transmission at video media, arrives each video media center.

Access Network, metropolitan area network video media distribution network, video media are dispatched net, video media communication network, are converged center switch, media center, use local address (the local address structure is described in detail referring to PCT).

Switch can be delivered to packets of information the phone of isomery gateway, data network, local media, distribution network, communication network, Access Network according to data type sign in the local address.Media center can be delivered to distribution network with packets of information according to local address data type sign, communication network, scheduling net.

Video media information converges center switch (shown in accompanying drawing 3,4,5) equipment video media switch KB one thousand families card, full Switching Module, input interface, output interface.

Input is the broadcasting of video media distribution network, program request interface, video media communication network interface, and Access Network, the isomery metro gateway (phone, data, TV), the local video media interface.

Output does not have video medium distribution network broadcast interface, program request interface.Output video media communication network interface is arranged, Access Network, heterogeneous network gateway (phone, data), local video media interface.

Video media distribution network broadcast interface output, unidirectional and connect with the broadcasting input interface of each KB one thousand families card.The video media communication network input/output interface of each KB one thousand families card is connected with full Fabric Interface.Full exchange distribution network input/output interface is connected with video media distribution network interface.

Video media distribution network broadcasting input signal arrives KB one thousand families card through interface, sends to corresponding Access Network interface video media distribution network program request center input signal through interface, arrives KB one thousand families card, sends to corresponding Access Network interface.

The Access Network input signal arrives KB one thousand families card through interface:

1. if lead to same KB one thousand families clamping networking signal, send to corresponding Access Network interface.

2. if lead to adjacent KB one thousand families clamping networking signal, send to full Fabric Interface, full Switching Module, full exchange sends to corresponding KB one thousand families card, and KB one thousand families card sends to corresponding Access Network interface.

3. if lead to outer video media communication network signal, send to the full Fabric Interface of KB one thousand families card, full Switching Module, full exchange sends to video media communication network interface.

4. if lead to program request center control signal, send to the full Fabric Interface of KB one thousand families card, full Switching Module, full exchange sends to video media communication network interface, video media communication network, video media service device.

5. if lead to KB one thousand families card local media signal, send to corresponding local media.

6. if lead to the video media center signal, send to the full Fabric Interface of KB one thousand families card, full Switching Module, full exchange sends to video media communication network interface.

Video media distribution network input signal sends to corresponding KB one thousand families card through interface, and KB one thousand families card sends to corresponding Access Network interface.

Heterogeneous network gateway input signal arrives KB one thousand families card through interface, sends to corresponding Access Network interface.

Local video media program input signal arrives KB one thousand families card through interface, sends to corresponding Access Network interface.

Local video medium foradownloaded video medium net program, local video media-on-demand download signal, send to KB one thousand families card video media communication network interface, send to KB one thousand families card video media communication network interface, full Switching Module, full exchange sends to video media communication network interface, outer shroud network interface, arrives the video media service device.

The video media service device is received the program request signaling of video media communication network interface, after treatment, send the program request center, and request program is passed on again to video media distribution network interface in the program request center, is broadcast to all KB one thousand families cards.Corresponding KB one thousand families card sends to corresponding Access Network interface.

Video media network switch KB one thousand families cards (as shown in Figure 7) equipment has program request multiplexer, Access Network output multiplexer, one-way exchange module, Service Switching Module, two-way exchange module, server, interface.

Multiplexer is common multiplexer, and server is a common server.

The program request inputoutput multiplexer: the video media program of all user's program requests that video media distribution network interface connects, in the transmission of program request passage broadcast mode, all video media network switch KB one thousand families cards all can be received.But a KB one thousand families card only needs to receive and transmits partial programme.Whole programs that the program request multiplexer will be received take out needs to receive the partial programme of transmitting.1000 programs of the whole network 10000 user's program requests for example, 10 programs of a KB one thousand families card program request.The program request multiplexer takes out 1000 programs receiving and needs to receive 10 programs transmitting.

Access Network input Multiplexing module: user of access network output speech, data, fax and video etc., video is not long-time use.A plurality of users export the output bandwidth of sharing a multiplexer.For example user 2G output, the 2G output bandwidth of a multiplexer is shared in 4 user 8G outputs.

Service Switching Module is according to data type sign in the packets of information local address, and packets of information is delivered to the telephone network of isomery gateway, data network, local media broadcasting, local ordering, two-way exchange module map network equipment.The Service Switching Module input is connected with local video media-on-demand interface, local video media broadcast interface, data network interface, telephone network interface, two-way exchange module.Service Switching Module output is connected with local video media-on-demand interface, local video media broadcast interface, data network interface, telephone network interface, two-way exchange module.

The two-way exchange module is delivered to Service Switching Module, server, Access Network, one-way exchange module according to the hierarchy and the data type sign of the ordering of packets of information local address with packets of information.The input of two-way exchange module is connected with Access Network Multiplexing module, the full Fabric Interface of video media communication network, Service Switching Module, server module.The output of two-way exchange module is connected with one-way exchange module, the full Fabric Interface of video media communication network, Service Switching Module, server module.

The one-way exchange module only according to the hierarchy of packets of information local address ordering, is delivered to Access Network with packets of information.The one-way exchange module is for transmitting the clean culture multicast content to Access Network.The input of one-way exchange module is connected with video media distribution network program request interface duplex module, video media distribution network broadcast interface, two-way exchange.The output of one-way exchange module is connected with the Access Network interface.(Switching Module is described in detail referring to PCT).

One-way exchange module input interface type is: video broadcasting interface, video request program interface, video media communication network interface, Access Network, heterogeneous network gateway (phone, data), local video media broadcast interface, local ordering interface.

One-way exchange module output interface type is, the Access Network interface, and video media communication network interface, the heterogeneous network gateway (phone, data, TV), local media broadcast interface, local ordering interface, no video broadcast interface, video request program.

The broadcasting center input signal arrives the one-way exchange module through interface, sends to corresponding Access Network interface.The program request center input signal is through interface, and the program request concentrator arrives the one-way exchange module, sends to corresponding Access Network interface.

Head of packet is the location on purpose, and Access Network input information bag is through interface, to concentrator, to the two-way exchange module.Two-way exchange resume module process:

If 1 packets of information destination address is to lead to Access Network, arrive the one-way exchange module, send to corresponding Access Network interface;

If 2 destination addresses are to lead to video media communication network signal, send to full Fabric Interface;

3 if lead to server, sends to server;

4 if lead to the heterogeneous network gateway, sends to Service Switching Module, and operation exchange sends to corresponding heterogeneous network gateway;

5 if lead to the local video media signal, sends to Service Switching Module, and operation exchange sends to corresponding local media;

6. if lead to video media central information bag, send to full Fabric Interface.

The video media communication network exchanges the input information bag entirely through interface, arrives two-way exchange, two-way exchange resume module process:

1. if lead to the Access Network signal, arrive the one-way exchange module, send to corresponding Access Network interface;

2. if lead to server, send to server.

Heterogeneous network metropolitan area gateway input information bag sends to Service Switching Module through interface, arrives the two-way exchange module:

1. if lead to the Access Network signal, arrive the one-way exchange module, send to corresponding Access Network interface;

2. if lead to server, send to server.

Local media input information bag sends to Service Switching Module through interface, arrives the two-way exchange module:

1. if lead to the Access Network packets of information, arrive the one-way exchange module, send to corresponding Access Network interface;

2. if lead to server, send to server.

Server is received packets of information, after treatment, send the two-way exchange module, passes on again:

1. the control broadcast singal send one-way exchange;

2. control program request signal send the program request concentrator;

3. control heterogeneous network gateway signal send operation exchange.

The embodiment of the multimedia switch course of work (10-18 in conjunction with the accompanying drawings):

Accompanying drawing 10 is depicted as same clamping networking communication and sets up, and signaling is set up in Access Network communication, is sent by caller, enters the two-way exchange module and arrives server, and server process is sent signaling and entered two-way exchange module arrival one-way exchange module, send called.Called party confirmed, send out and confirm signaling, enter the two-way exchange module and arrive server, server process is sent signaling and is entered two-way exchange module arrival one-way exchange module, send caller.

Caller communication enters the two-way exchange module, arrives the one-way exchange module, send called.Called communication enters the two-way exchange module, arrives the one-way exchange module, send caller.

The sign off flow process, to set up flow process identical with communication.

Accompanying drawing 11 is depicted as adjacent clamping networking communication and sets up, and caller Access Network cartoon letters is set up signaling, is sent by the caller Access Network, enter network interface card two-way exchange module and arrive server, server process is sent signaling and is entered the two-way exchange module, arrives full Switching Module, enters the video media communication network.

The video media communication network sends signaling to called network interface card two-way exchange module, arrives server, and server process is sent signaling and entered two-way exchange module arrival one-way exchange module, send called.

Called party confirmed, Access Network is sent out the affirmation signaling, enters called two-way exchange module and arrives full Switching Module, the video media communication network.

The video media communication network sends signaling to the full Switching Module of caller card, and the two-way exchange module arrives server, and server process is sent signaling and entered two-way exchange module arrival one-way exchange module, send caller.

Access Network communication is sent, and enters the two-way exchange module and arrives full Switching Module, video media communication network, sends to adjacent card two-way exchange module, one-way exchange module, Access Network.

The sign off flow process, to set up flow process identical with communication.

Accompanying drawing 12 is depicted as Access Network-video media communication network communication foundation, signaling is set up in the Access Network communication of communicating by letter, terminate, send by caller, enter the two-way exchange module and arrive server, server process is sent signaling and is entered the two-way exchange module and arrive full Switching Module, enters the video media communication network.

Video media communication network server sends signaling and enters called full Switching Module, two-way exchange module, arrives server, and server process is sent signaling and entered two-way exchange module arrival one-way exchange module, send called.

Called party confirmed, Access Network is sent out the affirmation signaling, enters called two-way exchange module and arrives full Switching Module, enters the video media communication network.Video media communication network server sends signaling and enters the full Switching Module of caller, two-way exchange module, arrives server, and server process is sent signaling and entered two-way exchange module arrival one-way exchange module, send caller.

The called communication of caller, Access Network enters two-way exchange and arrives full Switching Module, enters the video media communication network; Enter the full Switching Module of the other side, two-way exchange arrives the one-way exchange module, arrives Access Network.

The sign off flow process, to set up flow process identical with communication.

Accompanying drawing 13 is depicted as that Access Network-video site broadcasts that communication is set up, signaling is set up in communication, termination Access Network program request communication, send by caller, enter the two-way exchange module and arrive server, server process is sent signaling and is entered two-way exchange module arrival video media communication network.Signaling transmits the video media center that arrives in the video media communication network.The media center signaling transmits the arrival caller in the video media communication network and converges center switch.Enter full Switching Module, two-way exchange module, arrive server, server process is sent signaling and is entered two-way exchange module arrival one-way exchange module, send caller.

Video media center control of video media content transmits in the video media distribution network, arrives caller and converges center switch.Enter the full Switching Module of caller, arrive the one-way exchange module, send caller.

The sign off flow process, to set up flow process identical with communication.

Accompanying drawing 14 is depicted as Access Network-video media net broadcast communication and sets up, communicates by letter, terminates.

Signaling is set up in Access Network communication, is sent by caller, enters the two-way exchange module and arrives server, and server process is sent signaling and entered two-way exchange module arrival one-way exchange module.In the one-way exchange module broadcasting chained list is set, the Switching Module corresponding broadcasting channel port that opens the door.The one-way exchange module is sent signaling and is arrived the two-way exchange module, arrives server, and server process is sent signaling and entered two-way exchange module arrival one-way exchange module.

Broadcasting arrives the one-way exchange module from the medium distribution network.Corresponding broadcasting channel by the one-way exchange module corresponding port of opening the door, arrives Access Network.

The sign off flow process, to set up flow process identical with communication.

Accompanying drawing 15 is depicted as Access Network-internet communication and sets up, communicates by letter, terminates

Signaling is set up in Access Network communication, is sent by caller, enters the two-way exchange module and arrives server, and server process is sent signaling and entered the two-way exchange module, and Service Switching Module arrives internet gateway.Internet gateway is sent signaling and is entered Service Switching Module, and the two-way exchange module arrives server, and server process is sent signaling and entered two-way exchange module arrival one-way exchange module, send caller.

The called communication of caller, Access Network enters the two-way exchange module, and Service Switching Module arrives internet gateway; Internet gateway enters Service Switching Module, and two-way exchange arrives the one-way exchange module, arrives Access Network.

The sign off flow process, to set up flow process identical with communication.

Accompanying drawing 15 is depicted as Access Network-telephone communication and sets up, communicates by letter, terminates

Signaling is set up in Access Network communication, is sent by caller, enters the two-way exchange module and arrives server, and server process is sent signaling and entered the two-way exchange module, and Service Switching Module arrives telephony gateway.Telephony gateway sends signaling and enters Service Switching Module, and the two-way exchange module arrives server, and server process is sent signaling and entered two-way exchange module arrival one-way exchange module, send caller.

The called communication of caller, Access Network enters the two-way exchange module, and Service Switching Module arrives telephony gateway; Telephony gateway enters Service Switching Module, and two-way exchange arrives the one-way exchange module, arrives Access Network.

The sign off flow process, to set up flow process identical with communication.

Accompanying drawing 16 is depicted as Access Network-local ordering communication and sets up, communicates by letter, terminates

Signaling is set up in Access Network communication, send by caller, enter the two-way exchange module and arrive server, server process is sent signaling and is entered the two-way exchange module, and Service Switching Module arrives local TV gateway, local TV program request gateway sends signaling, enter Service Switching Module, two-way exchange module, server, server process is sent signaling and is entered two-way exchange module arrival one-way exchange module, arrives Access Network.

Local TV program request gateway sends program request and enters Service Switching Module, and the two-way exchange module arrives the one-way exchange module, arrives Access Network.

The sign off flow process, to set up flow process identical with communication.

Accompanying drawing 16 is depicted as Access Network-spot broadcasting video media communication and sets up, communicates by letter, terminates

Signaling is set up in Access Network communication, is sent by caller, enters the two-way exchange module and arrives server, and server process is sent signaling and entered the two-way exchange module, and Service Switching Module arrives spot broadcasting.Spot broadcasting is sent medium and is entered Service Switching Module, and the two-way exchange module arrives the one-way exchange module, send caller.

The sign off flow process, to set up flow process identical with communication.

The two-way exchange module is finished function:

Set up, communicate by letter, finish in abutting connection with the communication that networks;

Access Network-video media communication network communication is set up, communicates by letter, is finished;

Access Network-telephone communication is set up, communicates by letter, is finished;

Access Network-internet communication is set up, communicates by letter, is finished;

Access Network-local TV broadcast communication is set up, communicates by letter, is finished;

Access Network-local ordering communication is set up, communicates by letter, is finished;

Access Network-video media communication network TV broadcast communication is set up, communicates by letter, is finished;

Access Network-video media center program request communication is set up, communicates by letter, is finished.

Service Switching Module is finished function:

Access Network-telephone communication is set up, communicates by letter, is finished;

Access Network-internet communication is set up, communicates by letter, is finished;

Access Network-local TV broadcast communication is set up, communicates by letter, is finished;

Access Network-local ordering communication is set up, communicates by letter, is finished.

Video media central task process is shown in accompanying drawing 8,9,17,18.

Equipment has video media storage, full Switching Module, interface, server.

Input is video media communication network interface, video media scheduling network interface.

Output is video media communication network interface, video media scheduling network interface, video media distribution network interface.

The video media communication network transmits signaling and converges center and video media center to video media, and video media center processing program request signaling is sent to the video media distribution network with on-demand content from the video media storage.

Video media center processing dispatch accesses content with scheduling and send video media scheduling net from the video media storage, transmits another video media center, maybe scheduling is called in content and obtains from video media scheduling net, deposits the video media storage in.

Accompanying drawing 17 is depicted as the video media center program request course of work

The video media communication network transmits the program request signaling and enters video media center video media communication interface, enters the two-way exchange module, arrives server; After the server process, enter the two-way exchange module, arrive the video media storage, the content of inspection; Qualified back:

1. the video media storage is write in reply and is made, and enters the two-way exchange module, arrives server; After the server process, enter the two-way exchange module, arrive the video media communication interface, the video media communication network.

2. the video media storage transmits content, arrives video media distribution network interface, the video media distribution network.

3. when transmitting end of text, the video media storage is write in reply and is made, and enters the two-way exchange module, arrives server; After the server process, enter the two-way exchange module, arrive the video media communication interface, the video media communication network.

The sign off flow process, to set up flow process identical with communication.

Accompanying drawing 18 is depicted as the video media central dispatching course of work

The video media communication network transmits content and accesses signaling, enters and accesses video media center video media communication interface, enters the two-way exchange module, arrives server; After the server process, enter the two-way exchange module, arrive the video media storage, the content of inspection; Qualified back:

1. the video media memory is write in reply and is made, and enters the two-way exchange module, arrives server; After the server process, return scope of examination signaling and enter the two-way exchange module, arrive the video media communication interface, the video media communication network.

2. scope of examination signaling enters and calls in video media center video media communication interface, enters the two-way exchange module, arrives server; After the server process, enter the two-way exchange module, arrive the video media storage, check memory.After qualified, return and check the storage signaling, enter the two-way exchange module, arrive server; After the server process, enter the two-way exchange module, arrive the video media communication interface, the video media communication network.

3. check the storage signaling, enter and access video media center video media communication interface, enter the two-way exchange module, arrive server; After the server process, enter the two-way exchange module, arrive the video media memory, will access content and send the two-way exchange module, arrive the video media dispatch interface, enter video media scheduling net.

4. access content and enter and call in video media center video media scheduling network interface, enter the two-way exchange module, arrive the video media memory, be stored in this.

5. call in the video media central store and finish, the order of writing in reply enters the two-way exchange module, arrives server; After the server process, return and store the signaling that finishes, enter the two-way exchange module, arrive the video media communication interface, the video media communication network.

6. store the order of writing in reply that finishes, enter the two-way exchange module, arrive server; After the server process, return the storage signaling that finishes and enter the two-way exchange module, arrive the video media storage, stop content and access.

Claims (15)

1. the network-building method of a multi-media network, it is characterized in that, converge center switch by metropolitan area network and carry out multimedia decomposition or integrated, promptly the video media radio and television in the Access Network, speech fax, data are distributed to metropolitan area network, wherein, at least the video media transmission is a separate network, and it is through distribution network, communication network, scheduling network transmission information; Otherwise, with the metropolitan area network integrated Access Network of handling that sends to of medium out of the ordinary.

2. the network-building method of multi-media network as claimed in claim 1 is characterized in that, metropolitan area network converges center switch, adopts the video asymmetric exchange of input/output terminal port band width or local address exchange or operation exchange or their combination.

3. the network-building method of multi-media network as claimed in claim 1, it is characterized in that, through Service Switching Module, packets of information is delivered to phone PSTN, data I P net, the local media center of isomery gateway, the network equipment of two-way exchange module correspondence according to data type sign in the head of packet.

4. the network-building method of multi-media network as claimed in claim 1, it is characterized in that, hierarchy and data type sign according to the ordering of packets of information local address, packets of information is delivered to Service Switching Module, server, Access Network, the two-way exchange module that connects through the one-way exchange module, and input to Access Network Multiplexing module, the full Fabric Interface of video media communication network, Service Switching Module and server module or export one-way exchange module, the full Fabric Interface of video media communication network, Service Switching Module and server module to through it.

5. the network-building method of multi-media network as claimed in claim 1, it is characterized in that, only, packets of information is delivered to input, video media distribution network program request one-way interfaces, Multiplexing module, video media distribution network broadcasting unidirectional interface and the two-way exchange module of the one-way exchange module of Access Network according to the hierarchy of packets of information local address ordering.

6. the network-building method of multi-media network as claimed in claim 1 is characterized in that, each information converges video broadcasting, the IP Information On Demand that center switch is only accepted the video media metropolitan area network distribution network dispensing of media center through connecting with broadcast mode.

7. the network-building method of multi-media network as claimed in claim 1 is characterized in that, the video broadcasting signaling only converges between the center switch in Access Network and information and transmits.

8. multi-media network as claimed in claim 1 is made up of metropolitan area network, Access Network, backbone network, it is characterized in that, metropolitan area network converges the center by video media metropolitan area network, isomery metropolitan area network and metropolitan area network information and is connected with communication modes with subscriber card;

Wherein, metropolitan area network information converges the high speed multi-layer switches, Access Network, video media metropolitan area network of center and backbone network and is connected with communication modes with the isomery metropolitan area network through gateway.

9. multi-media network as claimed in claim 8 is characterized in that, the video media metropolitan area network converges the center by distribution network, communication network, scheduling net and the information of video media metropolitan area network and the video media center is formed.

10. multi-media network as claimed in claim 8, it is characterized in that, the distribution network of the heart channel of Hang-Shaoyin video media metropolitan area network converges center switch with broadcast mode with each information and is connected in the video media, and links to each other with other video media centers through the scheduling net of video media metropolitan area network;

The distribution network of video media metropolitan area network is connected with the metropolitan area network information center of converging with communication modes with communication network.

11. multi-media network as claimed in claim 8, it is characterized in that multi-media network metropolitan area network information converges center and the video media metropolitan area network interface of being made up of distribution network interface, communication network interface and the dispatch interface of video media metropolitan area network and the local video medium network interface of being made up of spot broadcasting network interface, program request network interface and data network interface, telephone network interface, Access Network interface, backbone interface and metropolitan area network information and converges center switch and be connected with communication modes.

12. multi-media network as claimed in claim 11, it is characterized in that it is connected with communication modes with subscriber card with the distribution network broadcasting unidirectional interface that comprises the video media metropolitan area network, program request one-way interfaces, the full Fabric Interface of video media communication network and local video media broadcast interface and program request interface and data network interface, telephone network interface, Access Network interface to converge center switch by metropolitan area network information.

13. multi-media network as claimed in claim 8, it is characterized in that subscriber card comprises the full Fabric Interface of communication network, local video media broadcast interface and the program request interface of distribution network broadcasting unidirectional interface, program request one-way interfaces, video media metropolitan area network of video media metropolitan area network and data network interface, telephone network interface, Access Network interface and comprises that Access Network Multiplexing module, one-way exchange module, Service Switching Module, two-way exchange module, server module communication are connected.

14. as claim 12 or 13 described multi-media networks, it is characterized in that the Service Switching Module input is connected with communication modes with local video media broadcast interface, local video media-on-demand interface, data network interface, telephone network interface, two-way exchange module;

Service Switching Module output is connected with communication modes with local video media broadcast interface, local video media-on-demand interface, data network interface, telephone network interface, two-way exchange module.

15. multi-media network as claimed in claim 8 is characterized in that, Access Network constitutes tree type or chain or ring-like web frame by subscriber equipment, user gateway, Access Network switch, server and is connected with metropolitan area information convergence switch.

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