CN102014519B - Method, mobile terminal and communication system for establishing multimedia communication linkage - Google Patents

Method, mobile terminal and communication system for establishing multimedia communication linkage Download PDF

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Publication number
CN102014519B
CN102014519B CN200910092280.2A CN200910092280A CN102014519B CN 102014519 B CN102014519 B CN 102014519B CN 200910092280 A CN200910092280 A CN 200910092280A CN 102014519 B CN102014519 B CN 102014519B
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communication interface
mobile terminal
module
multimedia
communication
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CN102014519A (en
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田康
刘霖
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China Mobile Communications Group Co Ltd
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China Mobile Communications Group Co Ltd
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Abstract

The invention relates to a mobile terminal, comprising a call establishing module, a multimedia communication protocol stack module, an input/output (I/O) communication port adapter module, a channel controller module and a data buffer controller module, and the multimedia communication is realized through the I/O communication port of the mobile terminal. The invention further discloses a method for establishing multimedia communication linkage between mobile terminal and a corresponding communication system. By adopting the mobile terminal provided by the invention, the property of the I/O communication port of the mobile terminal can be fully utilized, and reliable video and multimedia communication linkage can be established between the terminals or between the terminal and a gateway under the situation that an operator network support cannot be acquired.

Description

Set up method, mobile terminal and communication system that multimedia communication connects
Technical field
The present invention relates to radio communication, relates in particular to and between mobile terminal, sets up the method that multimedia communication connects, and possess the communication system of mobile terminal and the composition of corresponding function.
Background technology
Mobile terminal is realized multimedia communication, if the video class business such as video calling are the important service compositions in 3G mobile terminal, adopts at present 3G-324M (also the claiming H.324M) standard of 3GPP as 3G terminal video calling standard.
3G-324M terminal is default is to operate in circuit switching (Circuit Switched, CS) network, and several main connections in CS network of 3G-324M terminal are as follows:
1, the call setup (Call Set-up) between two 3G terminal based on standard H.324M;
2, one based on the H.324M 3G terminal of standard and the call setup between a PSTN multimedia terminal;
3, one based on the H.324M 3G terminal of standard and the call setup between a N-ISDN multimedia terminal.
Also there is at present setting up between telephone network user and IP network user the method for video calling connection.As set up with IP network the method that video calling is connected for disclosing a kind of telephone network in the Chinese patent application file of " 200680039210.5 " at one piece of application number, similarly scheme also discloses in application number is the Chinese patent application file of " 200680039110.2 ".Its main method is that conversion, the transcoding by signaling and agreement completes and be connected and communication process in network node/gateway device.
Application number is the U.S. patent documents of US2007/0201435, discloses a scheme based on IP transmission 3G-324M normal video.Wherein mention the IP calling video terminal of supporting 3G-324M, the video/audio bag of 3G-324M is directly sealed to dress by IP and issue dedicated gateway; Then by gateway, forward, thereby can carry out video data transmitting at CS network and PS (packet switching) network.
In some environment, as in experimental situation, terminal can not obtain mobile communications network or dedicated gateway support, connects, as video calling connects but terminal room still needs to set up multimedia communication.Along with the development of IP Multimedia System (IMS), the demand that interaction of multimedia information is carried out in the multimedia terminal of 3G terminal and IP network also becomes very urgent simultaneously.
At present, the video calling of the 3G-324M terminal of standard connects by CS network; Set up the method for communicating by letter with IP network, normally at gateway, carry out signal conversion/protocol processes; Also have by special terminal, as supported the IP phone terminal of 3G-324M, set up IP-based video calling and connect.
The implementation of above-mentioned prior art, all needs to depend on the communication network of operator.Mobile terminal need to pass through modulator-demodulator (Modem) and send multimedia communication data, and is sent to Correspondent Node by network; And the multimedia communication data that sent by network by modulator-demodulator received communication opposite end.
In existing 3G-324M terminal, carry out the correlation function assembly of video calling connection, comprise call setup (Call Set-up) module, 3G-324M protocol stack module and by the modulator-demodulator of terminal access communications network (Modem).Wherein, call setup module, sets up call request for initiating, and completes call establishment.Call setup module realizes usually used as a state machine, comprises that foundation (Initiating) calls out, replys (Answering) and finish the states such as (tearing down) calling.Complete after Call Set-up process, terminal both sides set up communication port.3G-324M protocol stack module, adopts 3GPP 3G-324M standard, and the communication port based on setting up carries out H.324M communication process, comprising: the H.245 principal and subordinate of process decision, terminal capability negotiation; H.223 the multi-meter of process transmission, the establishment of logical channel and close etc.H.324M final multiplex data transmits and exchanges at terminal room with multiplexing protocol Data Unit (MUX-PDU) form H.223.
Development along with terminal and interfacing, common mobile terminal has possessed more I/O (I/O) communication interface, as USB, Wifi, how bluetooths etc., make full use of the performance of these I/O communication interfaces, in the situation that can not obtaining carrier network support, between terminal, or between terminal and interface main frame (being equivalent to gateway), setting up reliable video and multimedia communication is connected, is the important topic that industry need to be studied.
Summary of the invention
The embodiment of the present invention provides a kind of mobile terminal, and the I/O communication interface possessing based on mobile terminal is set up the function that multimedia communication is carried out in the connection between terminal.
The embodiment of the present invention also provides between mobile terminal and sets up the method that multimedia communication connects, and multimedia communication is carried out in the connection that the I/O communication interface of realization based on mobile terminal set up between terminal.
The embodiment of the present invention also provides by possessing I/O communication interface based on mobile terminal and sets up the communication system that mobile terminal that connection between terminal carries out multimedia communication function forms.
The mobile terminal that the embodiment of the present invention provides comprises: call setup module and multimedia communication protocol stack module, also comprise: I/O communication interface adapter module, channel controller module and data buffer controller module;
Described I/O communication interface adapter module, for control each I/O communication interface of described mobile terminal with unified operation-interface, comprise and control the connection foundation of each I/O communication interface and remove, digital received and sent, and the control of accepting described channel controller module, monitor the connection request that each I/O communication interface receives, carry out interacting message with described channel controller module;
Described channel controller module, for when adopting described I/O communication interface to carry out multimedia communication, carry out interacting message with described call setup module, each state in maintenance call process of establishing, controls described I/O communication interface adapter module and carries out interacting message with it;
Described data buffer controller module, for carrying out transfer of data between described multimedia communication protocol stack module and described I/O communication interface adapter module.
The embodiment of the present invention provides sets up one of method that multimedia communication connects, and is applied to the multimedia communication between mobile terminal that the embodiment of the present invention provides, comprising:
Set up the connection between the I/O communication interface of Calling Side mobile terminal and the I/O communication interface of callee side mobile terminal;
Described Calling Side mobile terminal and described callee side mobile terminal are distinguished successively via local multimedia communication protocol stack module, data buffer controller module, I/O communication interface adapter module and I/O communication interface, and send multimedia communication data to opposite end by described connection; And
Described Calling Side mobile terminal and described callee side mobile terminal, respectively by described connection, receive via local I/O communication interface, I/O communication interface adapter module, data buffer controller module and multimedia communication protocol stack module the multimedia communication data that opposite end sends successively.
The embodiment of the present invention provides sets up two of method that multimedia communication connects, is applied to the multimedia communication between mobile terminal that the embodiment of the present invention provides, comprising:
Set up connected in series between the I/O communication interface of the I/O communication interface of Calling Side mobile terminal, the I/O communication interface of gateway and callee side mobile terminal;
Described Calling Side mobile terminal and described callee side mobile terminal are distinguished successively via local multimedia communication protocol stack module, data buffer controller module, I/O communication interface adapter module and I/O communication interface, and send multimedia communication data to opposite end by described connection; And
Described Calling Side mobile terminal and described callee side mobile terminal, respectively by described connection, receive via local I/O communication interface, I/O communication interface adapter module, data buffer controller module and multimedia communication protocol stack module the multimedia communication data that opposite end sends successively.
The embodiment of the present invention provides sets up three of method that multimedia communication connects, is applied to mobile terminal that the embodiment of the present invention provides and the multimedia communication between other multimedia terminal, comprising:
Set up connected in series between the I/O communication interface of Calling Side mobile terminal, the I/O communication interface of gateway and described gateway and callee side multimedia terminal;
Described Calling Side mobile terminal is successively via local multimedia communication protocol stack module, data buffer controller module, I/O communication interface adapter module and I/O communication interface, and send multimedia communication data to described gateway by described connection, then be sent to callee side multimedia terminal after being converted to by described gateway the protocol format data of supporting callee side multimedia terminal; And
Described Calling Side mobile terminal is by described connection, receives that callee side multimedia terminal sends by described connection and by described gateway, is converted to the multimedia communication data of the protocol format that the I/O communication interface of Calling Side mobile terminal supports successively via local I/O communication interface, I/O communication interface adapter module, data buffer controller module and multimedia communication protocol stack module.
The embodiment of the present invention provides sets up four of method that multimedia communication connects, is applied to mobile terminal that the embodiment of the present invention provides and the multimedia communication between other multimedia terminal, comprising:
Set up connected in series between the I/O communication interface of Calling Side multimedia terminal, network side gateway and described gateway and the I/O communication interface of callee side mobile terminal;
Described callee side mobile terminal is successively via local multimedia communication protocol stack module, data buffer controller module, I/O communication interface adapter module and I/O communication interface, and send multimedia communication data to described gateway by described connection, then be sent to described Calling Side multimedia terminal after being converted to by described gateway the protocol format data of supporting described Calling Side multimedia terminal; And
Described callee side mobile terminal is by described connection, receives that described Calling Side multimedia terminal sends by described connection and is converted to the multimedia communication data after the protocol format that the corresponding I/O communication interface of callee side mobile terminal supports by described gateway successively via local I/O communication interface, I/O communication interface adapter module, data buffer controller module and multimedia communication protocol stack module.
The embodiment of the present invention also provides a kind of communication system, comprises gateway and at least two mobile terminals that the embodiment of the present invention provides; Wherein:
Between the I/O communication interface of the I/O communication interface of Calling Side mobile terminal, the I/O communication interface of gateway and callee side mobile terminal, set up connected in series;
Described Calling Side mobile terminal and described callee side mobile terminal are distinguished successively via local multimedia communication protocol stack module, data buffer controller module, I/O communication interface adapter module and I/O communication interface, and send multimedia communication data to opposite end by described connection; And
Described Calling Side mobile terminal and described callee side mobile terminal, respectively by described connection, receive via local I/O communication interface, I/O communication interface adapter module, data buffer controller module and multimedia communication protocol stack module the multimedia communication data that opposite end sends successively.
Mobile terminal provided by the invention, in existing mobile terminal by adding I/O communication interface adapter module, channel controller module and data buffer controller module, simple realization I/O communication interface based on mobile terminal carry out multimedia communication (as video calling etc.).
Between mobile terminal provided by the invention, set up one of method of multimedia communication connection, adopted mobile terminal provided by the invention, can realize two mobile terminals and directly connect and carry out multimedia communication by I/O communication interface.
Between mobile terminal provided by the invention, set up two of method that multimedia communication connects, adopted mobile terminal provided by the invention, by the I/O communication interface of two mobile terminals is connected with the I/O communication interface of gateway respectively, can realizes the I/O communication interface by I/O communication interface and gateway between two mobile terminals and carry out multimedia communication.
Between mobile terminal provided by the invention, set up the method that multimedia communication connects three and method four, adopted mobile terminal provided by the invention, can realize mobile terminal by the protocol conversion function of I/O communication interface and gateway, and between the multimedia terminal of other network system, carry out multimedia communication.
By mobile terminal provided by the invention and gateway, a plurality of mobile terminals can be connected by I/O communication interface, form the communication system of a high efficiency of transmission multi-medium data.
Accompanying drawing explanation
The mobile terminal structure schematic diagram that Fig. 1 provides for the embodiment of the present invention;
Fig. 2, for two mobile terminals that the embodiment of the present invention provides connect by I/O communication interface, carries out the concrete Signalling exchange schematic diagram of video calling;
Fig. 3 is for adopting two connection diagrams that mobile terminal carries out multimedia communication provided by the invention;
The I/O communication interface of two mobile terminals that Fig. 4 embodiment of the present invention provides by I/O communication interface and gateway is connected and carries out the schematic diagram of multimedia communication;
The mobile terminal that Fig. 5 embodiment of the present invention provides is connected and carries out the schematic diagram of multimedia communication with another multimedia terminal by the I/O communication interface of I/O communication interface and gateway;
Fig. 6 is the networking communication system schematic diagram that mobile terminal provided by the invention, other multimedia terminal connect by gateway.
Embodiment
Below in conjunction with accompanying drawing, with specific embodiment, mobile terminal provided by the invention, method and system are described in detail.
The embodiment of the present invention provides a kind of mobile terminal, and the I/O communication interface possessing based on mobile terminal is set up the function that multimedia communication is carried out in the connection between terminal.
Referring to Fig. 1, the mobile terminal structure schematic diagram that the embodiment of the present invention provides, comprising: call setup module 11, multimedia communication protocol stack module 12, I/O communication interface adapter module 13, channel controller module 14 and data buffer controller module 15.Each functions of modules is described below:
Call setup module 11, call setup module in its function and prior art 3G-324M terminal is basic identical, conventionally can realize with state machine, comprise that foundations (Initiating) calls out, replys the states such as (Answering) and end (tearing down) calling.Complete after Call Set-up process, terminal both sides set up communication port.Because mobile terminal of the present invention is the increased functionality to existing mobile terminal, call setup module 11 is possessing on the basis of existing capability, for example, when user selects to carry out multimedia communication (carrying out video calling) by I/O communication interface, between the newly-increased channel controller module 14 of call setup module 11 and the present invention, carry out related news in call establishment alternately.
Multimedia communication protocol stack module 12,3G-324M protocol stack module function in its function and existing 3G-324M terminal is substantially similar, adopt the multimedia communication protocol standard of setting (for example to adopt 3G-324M standard of the prior art, can certainly adopt other multimedia communication protocol standard, the present invention is not construed as limiting this), generate the corresponding protocol Data Unit for transmitting.
I/O communication interface adapter module 13, for the operation-interface with unified, control each I/O communication interface of mobile terminal, comprise and control the connection foundation of each I/O communication interface and remove, digital received and sent, and the control of accepting channel controller module 14, monitor the connection request that each I/O communication interface receives, carry out interacting message with channel controller module 14;
Channel controller module 14, for when adopting I/O communication interface to carry out multimedia communication, carry out interacting message with call setup module 11, each state in maintenance call process of establishing, control inputs/output communication interface adapter module 13 also carries out interacting message with it, complete call establishment;
Data buffer controller module 15, for carrying out transfer of data between multimedia communication protocol stack module 12 and I/O communication interface adapter module 13.
Adopt mobile terminal shown in Fig. 1, in compatible prior art, mobile terminal is undertaken on the basis of multimedia communication by Modem and carrier network, also provide by user and select to carry out multimedia communication by the I/O communication interface of mobile terminal, make full use of the performance of each I/O communication interface of mobile terminal, in the situation that can not obtaining carrier network support, between terminal, or between terminal and interface main frame (being equivalent to gateway), set up reliable video and multimedia communication is connected, further the function of abundant and expansion mobile terminal.
Based on same inventive concept, adopt mobile terminal provided by the invention, the embodiment of the present invention also provides the method for setting up multimedia communication connection between mobile terminal.
Method of attachment embodiment mono-:
Two mobile terminals are directly connected and carry out multimedia communication by I/O communication interface.Concrete grammar is:
Set up the connection between the I/O communication interface of Calling Side mobile terminal and the I/O communication interface of callee side mobile terminal;
Calling Side mobile terminal and callee side mobile terminal are respectively successively via local multimedia communication protocol stack module, data buffer controller module, I/O communication interface adapter module and I/O communication interface, and the connection of passing through to set up sends multimedia communication data to opposite end; And Calling Side mobile terminal and callee side mobile terminal are respectively by the connection of setting up, and receive the multimedia communication data that opposite end sends successively via local I/O communication interface, I/O communication interface adapter module, data buffer controller module and multimedia communication protocol stack module.
Wherein, set up the concrete grammar of the connection between the I/O communication interface of Calling Side mobile terminal and the I/O communication interface of callee side mobile terminal, can adopt variety of way of the prior art to realize.As an example, be a kind of concrete I/O communication interface of setting up Calling Side mobile terminal provided by the invention and the method for attachment between the I/O communication interface of callee side mobile terminal below:
Via call setup module, channel controller module, I/O communication interface adapter module and the I/O communication interface of Calling Side mobile terminal, to callee side mobile terminal, initiate connection request successively;
I/O communication interface adapter module by callee side mobile terminal is monitored connection request; And when accept connecting successively via call setup module, channel controller module, I/O communication interface adapter module and the I/O communication interface of callee side mobile terminal, to Calling Side mobile terminal, return to connection acknowledge message.
Based on above-mentioned method of attachment of setting up between I/O communication interface, in a better embodiment, Calling Side mobile terminal and callee side mobile terminal, before sending or receiving multimedia communication data, also comprise:
Set up local data buffer controller module and the connection between I/O communication interface adapter module; And
Set up local multimedia communication protocol stack module and the connection between data buffer controller module.
With two mobile terminals, by I/O communication interface, directly connect below, carrying out video calling is example, and concrete connection foundation and multimedia data transmission process are described in detail in detail.
Referring to Fig. 2, it is the concrete Signalling exchange schematic diagram of this embodiment.Wherein, visual telephone engine is the related application of realizing video calling being embedded in mobile terminal, for starting and execution video call process.Multimedia communication protocol stack module adopts H.324M standard of the prior art.
For Calling Side mobile terminal, the Signalling exchange flow process connecting in process comprises:
1, the visual telephone engine of Calling Side mobile terminal is to the call setup module request of making a call of Calling Side mobile terminal.
2, the call setup module of Calling Side mobile terminal is set up call request to the channel controller module transmission of Calling Side mobile terminal.
3, the channel controller module of Calling Side mobile terminal sends to the I/O communication interface adapter module of Calling Side mobile terminal the request of connecting; This connection request is sent to callee side by this I/O communication interface adapter module according to the I/O communication interface of the Calling Side mobile terminal of selecting.
When the I/O communication interface adapter module of callee side mobile terminal listens to connection request, and when callee side mobile terminal is accepted to connect, can return and connect acknowledge message to Calling Side.When the I/O communication interface adapter module of the Calling Side mobile terminal I/O communication interface by Calling Side mobile terminal receives after the connection acknowledge message that callee side returns, follow-up Signalling exchange flow process comprises:
4, the I/O communication interface adapter module of Calling Side mobile terminal returns to connection acknowledge message to the channel controller module of Calling Side mobile terminal.
5, the channel controller module of Calling Side mobile terminal is returned to call setup acknowledge message to the call setup module of Calling Side mobile terminal.
6, the call setup module of Calling Side mobile terminal is returned to connection acknowledge message to the visual telephone engine of Calling Side mobile terminal.
For callee side mobile terminal, the Signalling exchange connecting in process comprises:
7, the visual telephone engine of callee side mobile terminal sends incoming call monitoring signaling to the channel controller module of callee side mobile terminal.
8, the channel controller module of callee side mobile terminal sends to the I/O communication interface adapter module of callee side mobile terminal the request monitoring control signal that connects.
The Signalling exchange of above-mentioned steps 7,8 correspondences, does not have inevitable contacting with the Calling Side request of whether making a call, and there is no the sequencing relation on the time of implementation yet.
I/O communication interface adapter module at callee side mobile terminal starts and monitors according to the request monitoring control signal that connects receiving, and after listening to the connection request of Calling Side initiation, follow-up Signalling exchange flow process comprises:
9, the I/O communication interface adapter module of callee side mobile terminal sends connection request to the channel controller module of callee side mobile terminal.
10, the channel controller module of callee side mobile terminal sends ALERTING message to the call setup module of callee side mobile terminal.
11, the call setup module of callee side mobile terminal is returned and is accepted connection message to the channel controller module of callee side mobile terminal.
11 ', the call setup module of callee side mobile terminal also sends connection acknowledge message to the visual telephone engine of callee side mobile terminal.
12, the channel controller module of callee side mobile terminal is returned to connection acknowledge message to the I/O communication interface adapter module of callee side mobile terminal; This connection acknowledge message is sent to Calling Side by the I/O communication interface adapter module of callee side mobile terminal according to the I/O communication interface of the callee side mobile terminal of selecting.
The signalling interactive process walking by above-mentioned 1-12, has completed two mobile terminals and has directly connected by I/O communication interface.
The object connecting, is in order to carry out multimedia communication between two mobile terminals, transmits multi-medium data.No matter Calling Side or callee side, the reciprocal process of its transmission or receiving multimedia data comprises:
13, by the data buffer controller module of local visual telephone engine initialization this locality, wherein initialization procedure comprises the multi-medium data that empties storage, or distributes the respective stored space of the multi-medium data of follow-up reception.This step is optional step.
14, by local data buffer controller module set up with local I/O communication interface adapter module between be connected so that follow-up between carries out Multimedia Data Transmission.
15, by local visual telephone engine, to local multimedia communication protocol stack module, send and set I/O communication interface instruction, according to the communication port of having set up, set corresponding input/output interface, so that this corresponding input/output interface of following adopted carries out multi-medium data sending and receiving.
16, by local multimedia communication protocol stack module set up with local data buffer controller module between be connected so that follow-up between carries out Multimedia Data Transmission.
When between Calling Side mobile terminal and callee side mobile terminal and Calling Side mobile terminal inside is with after being connected of callee side mobile terminal inside all set up, just can transmit multi-medium data by the connection of setting up, realize the multimedia communication between Calling Side mobile terminal and callee side mobile terminal.Wherein, in Calling Side mobile terminal and callee side mobile terminal, between local multimedia communication protocol stack module and data buffer controller module, transmit MUX-PDU respectively, and transmit MUX-PDU between local data buffer controller module and I/O communication interface adapter module; Between Calling Side mobile terminal and callee side mobile terminal, the communication port of setting up by both I/O communication interfaces carries out Multimedia Data Transmission.
Referring to Fig. 3, the connection and the Signalling exchange schematic diagram that carry out multimedia communication for two mobile terminals of tool the application.In Fig. 3, mobile terminal 1 and mobile terminal 2 include respectively: call setup module, multimedia communication protocol stack module (produce based on H.223 the MUX-PDU of agreement), modulator-demodulator, channel controller module, data buffer controller module and I/O communication interface adapter module.Call setup module in mobile terminal, multimedia communication protocol stack module and modulator-demodulator jointly complete by carrier network and realize multimedia communication (as video calling); This function is the function that mobile terminal of the prior art has possessed.The I/O communication interface that newly-increased channel controller module, data buffer controller module and the I/O communication interface adapter module of call setup module in mobile terminal, multimedia communication protocol stack module and the present invention completes jointly by mobile terminal realizes multimedia communication, is what's new of the present invention.
Above-mentioned method of attachment embodiment mono-, has realized between two mobile terminals and directly having connected by I/O communication interface, and carries out multimedia communication by the communication port of setting up between I/O communication interface.
Method of attachment embodiment bis-:
The I/O communication interface by gateway is connected and carries out multimedia communication by I/O communication interface for two mobile terminals.Concrete grammar is:
Set up connected in series between the I/O communication interface of the I/O communication interface of Calling Side mobile terminal, the I/O communication interface of gateway and callee side mobile terminal;
Calling Side mobile terminal and callee side mobile terminal are respectively successively via local multimedia communication protocol stack module, data buffer controller module, I/O communication interface adapter module and I/O communication interface, and the connection of passing through to set up sends multimedia communication data to opposite end; And Calling Side mobile terminal and callee side mobile terminal are respectively by the connection of setting up, and receive the multimedia communication data that opposite end sends successively via local I/O communication interface, I/O communication interface adapter module, data buffer controller module and multimedia communication protocol stack module.
Set up connected in series between the I/O communication interface of the I/O communication interface of Calling Side mobile terminal, the I/O communication interface of gateway and callee side mobile terminal, specifically comprise:
Via call setup module, channel controller module, I/O communication interface adapter module and the I/O communication interface of Calling Side mobile terminal, by gateway, to callee side mobile terminal, initiate connection request successively; Be arranged at I/O communication interface adapter module in gateway and accept to be arranged at the control of the channel controller module in gateway, listen to after connection request, by the I/O communication interface in gateway, connection request is sent to callee side mobile terminal; The connection request being transmitted by the I/O communication interface adapter module motoring gateway of callee side mobile terminal; And when accept connecting successively via call setup module, channel controller module, I/O communication interface adapter module and the I/O communication interface of callee side mobile terminal, by gateway, to Calling Side mobile terminal, return to connection acknowledge message.
Above-mentioned method of attachment embodiment bis-with the main distinction of method of attachment embodiment mono-is: the I/O communication interface of Calling Side mobile terminal is connected with the I/O communication interface of gateway respectively with the I/O communication interface of callee side mobile terminal, be that Calling Side mobile terminal and callee side mobile terminal connect by gateway, and in gateway, comprise channel controller module and I/O communication interface adapter module, can between Calling Side mobile terminal and callee side mobile terminal, transmit the related signaling in calling procedure, and by the I/O communication interface of gateway local set up respectively with the I/O communication interface of Calling Side mobile terminal and the I/O communication interface of callee side mobile terminal between be connected.
Referring to Fig. 4, for according to bis-, two mobile terminals of above-mentioned method of attachment embodiment, the I/O communication interface by I/O communication interface and gateway connects and carries out signaling and the transfer of data schematic diagram of multimedia communication.In Fig. 4, the I/O communication interface adapter module of mobile terminal 1 and mobile terminal 2 this locality carries out the Signalling exchange in calling procedure with local channel controller module respectively, and also to carry out multi-medium data mutual with local data buffer controller module respectively.The I/O communication interface adapter module of mobile terminal 1 and mobile terminal 2 is connected to respectively the I/O communication interface of gateway by local I/O communication interface.In gateway, be provided with channel controller module and I/O communication interface adapter module, for controlling by the I/O communication interface of gateway local, between mobile terminal 1 and mobile terminal 2, carry out the transmission of signaling and multi-medium data.
Method of attachment embodiment tri-:
Multimedia communication is carried out by gateway in a mobile terminal and a multimedia terminal.Specifically be divided into two kinds of situations:
Situation one: caller is mobile terminal, called is the multimedia terminal of other system.
Concrete grammar is: set up connected in series between the I/O communication interface of Calling Side mobile terminal, the I/O communication interface of gateway and this gateway and callee side multimedia terminal;
Calling Side mobile terminal is successively via local multimedia communication protocol stack module, data buffer controller module, I/O communication interface adapter module and I/O communication interface, and send multimedia communication data to gateway by the connection of setting up, then be sent to callee side multimedia terminal after being converted to by gateway the protocol format data of supporting callee side multimedia terminal; Calling Side mobile terminal, by the connection of setting up, receives callee side multimedia terminal via local I/O communication interface, I/O communication interface adapter module, data buffer controller module and multimedia communication protocol stack module successively and is connected the multimedia communication data of the protocol format of the I/O communication interface support sending and be converted to Calling Side mobile terminal by gateway by this.
Set up connected in series between the I/O communication interface of Calling Side mobile terminal, the I/O communication interface of gateway and this gateway and callee side multimedia terminal, specifically comprise:
Via call setup module, channel controller module, I/O communication interface adapter module and the I/O communication interface of Calling Side mobile terminal, by gateway, to callee side multimedia terminal, initiate connection request successively; Be arranged at I/O communication interface adapter module in gateway and accept to be arranged at the control of the channel controller module in gateway, monitor connection request, and be converted to after the connection request that the protocol format supported callee side multimedia terminal is corresponding, by gateway, be sent to callee side multimedia terminal; Gateway receives the connection acknowledge message that callee side multimedia terminal is returned, and is converted to after the connection acknowledge message that protocol format that the I/O communication interface of Calling Side mobile terminal supports is corresponding, is transmitted to Calling Side mobile terminal.
Situation two: called is mobile terminal, the multimedia terminal that caller is other system.
Concrete grammar is: set up connected in series between the I/O communication interface of Calling Side multimedia terminal, network side gateway and gateway and the I/O communication interface of callee side mobile terminal;
Callee side mobile terminal is successively via local multimedia communication protocol stack module, data buffer controller module, I/O communication interface adapter module and I/O communication interface, and send multimedia communication data to gateway by the connection of setting up, then be sent to Calling Side multimedia terminal after being converted to by gateway the protocol format data of supporting Calling Side multimedia terminal; And callee side mobile terminal is by the connection of setting up, via local I/O communication interface, I/O communication interface adapter module, data buffer controller module and multimedia communication protocol stack module, receives Calling Side multimedia terminal successively and is connected the multimedia communication data after the protocol format of the corresponding I/O communication interface support sending and be converted to callee side mobile terminal by gateway by this.
Set up connected in series between the I/O communication interface of Calling Side multimedia terminal, network side gateway and gateway and the I/O communication interface of callee side mobile terminal, specifically comprise:
Calling Side multimedia terminal is initiated connection request by gateway to callee side mobile terminal;
Gateway is converted to connection request the connection request corresponding to protocol format of the I/O communication interface support of callee side mobile terminal, and is forwarded to callee side mobile terminal by local I/O communication interface; The connection request being transmitted by the I/O communication interface adapter module motoring gateway of callee side mobile terminal; And via local call setup module, channel controller module, I/O communication interface adapter module and I/O communication interface, return to be connected successively and confirm message to gateway, gateway is converted to after the connection acknowledge message that the protocol format supported Calling Side multimedia terminal is corresponding connecting acknowledge message, is transmitted to Calling Side multimedia terminal.
Above-mentioned method of attachment embodiment tri-with the main distinction of method of attachment embodiment bis-is: only have the I/O communication interface of Calling Side (or callee side) mobile terminal to be connected with the I/O communication interface of gateway, and connect by this communication port transmitting multimedia data of setting up.Due to corresponding callee side (or Calling Side) multimedia terminal that is other system, the concrete connected mode of itself and gateway is determined according to other system and multimedia terminal type.
Referring to Fig. 5, be signaling and the transfer of data schematic diagram that is connected and carries out multimedia communication by gateway and another multimedia terminal with the I/O communication interface of gateway by I/O communication interface according to tri-, one mobile terminals of above-mentioned method of attachment embodiment.In Fig. 5, mobile terminal (can be used as caller, also can be used as called) local I/O communication interface adapter module carries out the Signalling exchange in calling procedure with local channel controller module respectively, and also to carry out multi-medium data mutual with local data buffer controller module.The I/O communication interface adapter module of mobile terminal is connected to the I/O communication interface of gateway by local I/O communication interface.In gateway, be provided with channel controller module and I/O communication interface adapter module, for controlling the transmission of carrying out signaling and multi-medium data between I/O communication interface by gateway local and mobile terminal.In gateway, also include agreement/signal conversion module and network adapter module (in existing gateway, generally all thering are those functional modules), be respectively used to carry out protocol conversion and according to Correspondent Node belonging network, carry out corresponding Network adaptation.
Based on same inventive concept, by above-mentioned mobile terminal provided by the invention and with gateway between be connected, can form corresponding communication system.In a kind of communication system, comprise gateway and at least two above-mentioned mobile terminals provided by the invention; Wherein:
Between the I/O communication interface of the I/O communication interface of Calling Side mobile terminal, the I/O communication interface of gateway and callee side mobile terminal, set up connected in series; Calling Side mobile terminal and callee side mobile terminal are respectively successively via local multimedia communication protocol stack module, data buffer controller module, I/O communication interface adapter module and I/O communication interface, and the connection of passing through to set up sends multimedia communication data to opposite end; And Calling Side mobile terminal is connected by this respectively with callee side mobile terminal, via local I/O communication interface, I/O communication interface adapter module, data buffer controller module and multimedia communication protocol stack module, receive the multimedia communication data that opposite end sends successively.
In another execution mode, a kind of communication system comprises other multimedia terminal of gateway and at least one mobile terminal provided by the invention and at least one; Wherein:
Between the I/O communication interface of mobile terminal and the I/O communication interface of gateway and this gateway and described multimedia terminal, set up connected in series;
When mobile terminal is during as caller, successively via local multimedia communication protocol stack module, data buffer controller module, I/O communication interface adapter module and I/O communication interface, and send multimedia communication data to gateway by the connection of setting up, then be sent to callee side multimedia terminal after being converted to by gateway the protocol format data of supporting callee side multimedia terminal; And mobile terminal is by this connection, receives callee side multimedia terminal be successively connected the multimedia communication data of the protocol format of the I/O communication interface support sending and be converted to mobile terminal by gateway by this via local I/O communication interface, I/O communication interface adapter module, data buffer controller module and multimedia communication protocol stack module.
When mobile terminal is when called, successively via local multimedia communication protocol stack module, data buffer controller module, I/O communication interface adapter module and I/O communication interface, and send multimedia communication data to gateway by the connection of setting up, then be sent to Calling Side multimedia terminal after being converted to by gateway the protocol format data of supporting Calling Side multimedia terminal; And mobile terminal connects by this, via local I/O communication interface, I/O communication interface adapter module, data buffer controller module and multimedia communication protocol stack module, receive Calling Side multimedia terminal successively and is connected the multimedia communication data after the protocol format of the corresponding I/O communication interface support sending and be converted to mobile terminal by gateway by this.
Fig. 6 is between mobile terminal provided by the invention, and the networking communication system schematic diagram that is connected by gateway with other multimedia terminal of mobile terminal.In Fig. 6, the I/O communication interface of any two mobile terminals can connect by the I/O communication interface of gateway.Any two mobile terminals can also be crossed over Internet by two or more gateways and connect.The gateway of any one mobile terminal by thering is protocol conversion function also can and other multimedia terminal between connect.
In sum, the present invention by adding I/O communication interface adapter module, channel controller module and data buffer controller module in existing terminal, the I/O communication interface of realization based on mobile terminal carried out multimedia communication, makes full use of the I/O interface capability of existing mobile terminal.According to mobile terminal provided by the invention, can realize two mobile terminals is directly connected and carries out multimedia communication by I/O communication interface, and by the I/O communication interface of two mobile terminals is connected with the I/O communication interface of gateway respectively, can realize between two mobile terminals and carry out multimedia communication by I/O communication interface and gateway switching, and can realize mobile terminal by the protocol conversion function of I/O communication interface and gateway, and between the multimedia terminal of other network system, carry out multimedia communication.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.

Claims (14)

1. set up the method that multimedia communication connects for one kind, comprise at least two mobile terminals, described mobile terminal comprises call setup module and multimedia communication protocol stack module, it is characterized in that, described mobile terminal also comprises: the I/O communication interface adapter module, channel controller module and the data buffer controller module that for setting up visual telephone, connect; Described I/O communication interface adapter module, for control each I/O communication interface of described mobile terminal with unified operation-interface, comprise and control the connection foundation of each I/O communication interface and remove, digital received and sent, and the control of accepting described channel controller module, monitor the connection request that each I/O communication interface receives, carry out interacting message with described channel controller module; Described channel controller module, for when adopting described I/O communication interface to carry out video telephone communications, carry out interacting message with described call setup module, each state in maintenance call process of establishing, controls described I/O communication interface adapter module and carries out interacting message with it; Described data buffer controller module, for carrying out transfer of data between described multimedia communication protocol stack module and described I/O communication interface adapter module;
Described method comprises:
At Calling Side mobile terminal and callee side mobile terminal, set up in visual telephone process, set up the connection between the I/O communication interface of Calling Side mobile terminal and the I/O communication interface of callee side mobile terminal;
Described Calling Side mobile terminal and described callee side mobile terminal are distinguished successively via local multimedia communication protocol stack module, data buffer controller module, I/O communication interface adapter module and I/O communication interface, and send visual telephone data to opposite end by described connection; And
Described Calling Side mobile terminal and described callee side mobile terminal, respectively by described connection, receive via local I/O communication interface, I/O communication interface adapter module, data buffer controller module and multimedia communication protocol stack module the visual telephone data that opposite end sends successively.
2. the method for setting up multimedia communication connection as claimed in claim 1, is characterized in that, described connection of setting up between the I/O communication interface of Calling Side mobile terminal and the I/O communication interface of callee side mobile terminal, specifically comprises:
Via call setup module, channel controller module, I/O communication interface adapter module and the I/O communication interface of Calling Side mobile terminal, to callee side mobile terminal, initiate connection request successively;
I/O communication interface adapter module by described callee side mobile terminal is monitored described connection request; And when accept connecting successively via call setup module, channel controller module, I/O communication interface adapter module and the I/O communication interface of described callee side mobile terminal, to described Calling Side mobile terminal, return to connection acknowledge message.
3. the method for setting up multimedia communication connection as claimed in claim 1 or 2, is characterized in that, described Calling Side mobile terminal and described callee side mobile terminal, before sending or receiving described visual telephone data, also comprise:
Set up local data buffer controller module and the connection between I/O communication interface adapter module; And
Set up local multimedia communication protocol stack module and the connection between data buffer controller module.
4. set up the method that multimedia communication connects for one kind, comprise at least two mobile terminals, described mobile terminal comprises call setup module and multimedia communication protocol stack module, it is characterized in that, described mobile terminal also comprises: the I/O communication interface adapter module, channel controller module and the data buffer controller module that for setting up visual telephone, connect; Described I/O communication interface adapter module, for control each I/O communication interface of described mobile terminal with unified operation-interface, comprise and control the connection foundation of each I/O communication interface and remove, digital received and sent, and the control of accepting described channel controller module, monitor the connection request that each I/O communication interface receives, carry out interacting message with described channel controller module; Described channel controller module, for when adopting described I/O communication interface to carry out video telephone communications, carry out interacting message with described call setup module, each state in maintenance call process of establishing, controls described I/O communication interface adapter module and carries out interacting message with it; Described data buffer controller module, for carrying out transfer of data between described multimedia communication protocol stack module and described I/O communication interface adapter module;
Described method comprises:
At Calling Side mobile terminal and callee side mobile terminal, set up in visual telephone process, set up connected in series between the I/O communication interface of the I/O communication interface of Calling Side mobile terminal, the I/O communication interface of gateway and callee side mobile terminal;
Described Calling Side mobile terminal and described callee side mobile terminal are distinguished successively via local multimedia communication protocol stack module, data buffer controller module, I/O communication interface adapter module and I/O communication interface, and send visual telephone data to opposite end by described connection; And
Described Calling Side mobile terminal and described callee side mobile terminal, respectively by described connection, receive via local I/O communication interface, I/O communication interface adapter module, data buffer controller module and multimedia communication protocol stack module the visual telephone data that opposite end sends successively.
5. as claimed in claim 4ly set up the method that multimedia communication connects, it is characterized in that, connected in series between the described I/O communication interface of setting up the I/O communication interface of Calling Side mobile terminal, the I/O communication interface of gateway and callee side mobile terminal, specifically comprises:
Via call setup module, channel controller module, I/O communication interface adapter module and the I/O communication interface of Calling Side mobile terminal, by gateway, to callee side mobile terminal, initiate connection request successively;
Be arranged at I/O communication interface adapter module in described gateway and accept to be arranged at the control of the channel controller module in described gateway, listen to after described connection request, by the I/O communication interface in described gateway, described connection request is sent to callee side mobile terminal;
By the I/O communication interface adapter module of described callee side mobile terminal, monitor the connection request that described gateway transmits; And when accept connecting successively via call setup module, channel controller module, I/O communication interface adapter module and the I/O communication interface of described callee side mobile terminal, by described gateway, to described Calling Side mobile terminal, return to connection acknowledge message.
6. the method for setting up multimedia communication connection as described in claim 4 or 5, is characterized in that, described Calling Side mobile terminal and described callee side mobile terminal, before sending or receiving described visual telephone data, also comprise:
Set up local data buffer controller module and the connection between I/O communication interface adapter module; And
Set up local multimedia communication protocol stack module and the connection between data buffer controller module.
7. set up the method that multimedia communication connects for one kind, comprise other multimedia terminal of at least one mobile terminal and at least one, described mobile terminal comprises call setup module and multimedia communication protocol stack module, it is characterized in that, described mobile terminal also comprises: the I/O communication interface adapter module, channel controller module and the data buffer controller module that for setting up visual telephone, connect; Described I/O communication interface adapter module, for control each I/O communication interface of described mobile terminal with unified operation-interface, comprise and control the connection foundation of each I/O communication interface and remove, digital received and sent, and the control of accepting described channel controller module, monitor the connection request that each I/O communication interface receives, carry out interacting message with described channel controller module; Described channel controller module, for when adopting described I/O communication interface to carry out video telephone communications, carry out interacting message with described call setup module, each state in maintenance call process of establishing, controls described I/O communication interface adapter module and carries out interacting message with it; Described data buffer controller module, for carrying out transfer of data between described multimedia communication protocol stack module and described I/O communication interface adapter module;
Described method is applied to the multimedia communication between described mobile terminal and other multimedia terminal, and described method comprises:
Multimedia terminal at Calling Side mobile terminal and other is set up in visual telephone process, sets up connected in series between the I/O communication interface of Calling Side mobile terminal, the I/O communication interface of gateway and described gateway and callee side multimedia terminal;
Described Calling Side mobile terminal is successively via local multimedia communication protocol stack module, data buffer controller module, I/O communication interface adapter module and I/O communication interface, and send visual telephone data to described gateway by described connection, then be sent to callee side multimedia terminal after being converted to by described gateway the protocol format data of supporting callee side multimedia terminal; And
Described Calling Side mobile terminal is by described connection, receives that callee side multimedia terminal sends by described connection and by described gateway, is converted to the visual telephone data of the protocol format that the I/O communication interface of Calling Side mobile terminal supports successively via local I/O communication interface, I/O communication interface adapter module, data buffer controller module and multimedia communication protocol stack module.
8. as claimed in claim 7ly set up the method that multimedia communication connects, it is characterized in that, describedly set up connected in series between the I/O communication interface of Calling Side mobile terminal, the I/O communication interface of gateway and described gateway and callee side multimedia terminal, specifically comprise:
Via call setup module, channel controller module, I/O communication interface adapter module and the I/O communication interface of Calling Side mobile terminal, by gateway, to callee side multimedia terminal, initiate connection request successively;
Be arranged at I/O communication interface adapter module in described gateway and accept to be arranged at the control of the channel controller module in described gateway, monitor described connection request, and be converted to after the connection request that the protocol format supported callee side multimedia terminal is corresponding, by described gateway, be sent to described callee side multimedia terminal;
Described gateway receives the connection acknowledge message that described callee side multimedia terminal is returned, and is converted to after the connection acknowledge message that protocol format that the I/O communication interface of Calling Side mobile terminal supports is corresponding, is transmitted to described Calling Side mobile terminal.
9. set up as claimed in claim 7 or 8 the method that multimedia communication connects, it is characterized in that, described Calling Side mobile terminal, before sending or receiving described visual telephone data, also comprises:
Set up local data buffer controller module and the connection between I/O communication interface adapter module; And
Set up local multimedia communication protocol stack module and the connection between data buffer controller module.
10. set up the method that multimedia communication connects for one kind, comprise other multimedia terminal of at least one mobile terminal and at least one, described mobile terminal comprises call setup module and multimedia communication protocol stack module, it is characterized in that, described mobile terminal also comprises: the I/O communication interface adapter module, channel controller module and the data buffer controller module that for setting up visual telephone, connect; Described I/O communication interface adapter module, for control each I/O communication interface of described mobile terminal with unified operation-interface, comprise and control the connection foundation of each I/O communication interface and remove, digital received and sent, and the control of accepting described channel controller module, monitor the connection request that each I/O communication interface receives, carry out interacting message with described channel controller module; Described channel controller module, for when adopting described I/O communication interface to carry out video telephone communications, carry out interacting message with described call setup module, each state in maintenance call process of establishing, controls described I/O communication interface adapter module and carries out interacting message with it; Described data buffer controller module, for carrying out transfer of data between described multimedia communication protocol stack module and described I/O communication interface adapter module;
The method is applied to the visual telephone between described mobile terminal and other multimedia terminal, comprising:
Set up connected in series between the I/O communication interface of Calling Side multimedia terminal, network side gateway and described gateway and the I/O communication interface of callee side mobile terminal;
Described callee side mobile terminal is successively via local multimedia communication protocol stack module, data buffer controller module, I/O communication interface adapter module and I/O communication interface, and send visual telephone data to described gateway by described connection, then be sent to described Calling Side multimedia terminal after being converted to by described gateway the protocol format data of supporting described Calling Side multimedia terminal; And
Described callee side mobile terminal is by described connection, receives that described Calling Side multimedia terminal sends by described connection and is converted to the visual telephone data after the protocol format that the corresponding I/O communication interface of callee side mobile terminal supports by described gateway successively via local I/O communication interface, I/O communication interface adapter module, data buffer controller module and multimedia communication protocol stack module.
11. methods of setting up multimedia communication connection as claimed in claim 10, it is characterized in that, describedly set up connected in series between the I/O communication interface of Calling Side multimedia terminal, network side gateway and described gateway and the I/O communication interface of callee side mobile terminal, specifically comprise:
Calling Side multimedia terminal is initiated connection request by gateway to callee side mobile terminal;
Described gateway is converted to described connection request the connection request corresponding to protocol format of the I/O communication interface support of callee side mobile terminal, and is forwarded to described callee side mobile terminal by local I/O communication interface;
By the I/O communication interface adapter module of described callee side mobile terminal, monitor the connection request that described gateway transmits; And via local call setup module, channel controller module, I/O communication interface adapter module and I/O communication interface, return to be connected successively and confirm message to described gateway, described gateway is converted to described connection acknowledge message after the connection acknowledge message that the protocol format supported described Calling Side multimedia terminal is corresponding, is transmitted to described Calling Side multimedia terminal.
12. set up the method that multimedia communication connects as described in claim 10 or 11, it is characterized in that, described callee side mobile terminal, before sending or receiving described multimedia communication data, also comprises:
Set up local data buffer controller module and the connection between I/O communication interface adapter module; And
Set up local multimedia communication protocol stack module and the connection between data buffer controller module.
13. 1 kinds of communication systems, is characterized in that, comprise gateway and at least two mobile terminals; Wherein:
Described mobile terminal comprises call setup module and multimedia communication protocol stack module, and described mobile terminal also comprises: the I/O communication interface adapter module, channel controller module and the data buffer controller module that for setting up visual telephone, connect; Described I/O communication interface adapter module, for control each I/O communication interface of described mobile terminal with unified operation-interface, comprise and control the connection foundation of each I/O communication interface and remove, digital received and sent, and the control of accepting described channel controller module, monitor the connection request that each I/O communication interface receives, carry out interacting message with described channel controller module; Described channel controller module, for when adopting described I/O communication interface to carry out video telephone communications, carry out interacting message with described call setup module, each state in maintenance call process of establishing, controls described I/O communication interface adapter module and carries out interacting message with it; Described data buffer controller module, for carrying out transfer of data between described multimedia communication protocol stack module and described I/O communication interface adapter module;
In the communication system that comprises two described mobile terminals and gateway, set up in visual telephone process, between the I/O communication interface of the I/O communication interface of Calling Side mobile terminal, the I/O communication interface of gateway and callee side mobile terminal, set up connected in series;
Described Calling Side mobile terminal and described callee side mobile terminal are distinguished successively via local multimedia communication protocol stack module, data buffer controller module, I/O communication interface adapter module and I/O communication interface, and send visual telephone data to opposite end by described connection; And
Described Calling Side mobile terminal and described callee side mobile terminal, respectively by described connection, receive via local I/O communication interface, I/O communication interface adapter module, data buffer controller module and multimedia communication protocol stack module the visual telephone data that opposite end sends successively.
14. 1 kinds of communication systems, is characterized in that, comprise gateway and at least one mobile terminal, and at least one other multimedia terminal; Described mobile terminal comprises call setup module and multimedia communication protocol stack module, it is characterized in that, described mobile terminal also comprises: the I/O communication interface adapter module, channel controller module and the data buffer controller module that for setting up visual telephone, connect; Described I/O communication interface adapter module, for control each I/O communication interface of described mobile terminal with unified operation-interface, comprise and control the connection foundation of each I/O communication interface and remove, digital received and sent, and the control of accepting described channel controller module, monitor the connection request that each I/O communication interface receives, carry out interacting message with described channel controller module; Described channel controller module, for when adopting described I/O communication interface to carry out video telephone communications, carry out interacting message with described call setup module, each state in maintenance call process of establishing, controls described I/O communication interface adapter module and carries out interacting message with it; Described data buffer controller module, for carry out transfer of data between described multimedia communication protocol stack module and described I/O communication interface adapter module, wherein:
Between the I/O communication interface of described mobile terminal and the I/O communication interface of described gateway and described gateway and described multimedia terminal, set up connected in series;
When described mobile terminal is during as caller, successively via local multimedia communication protocol stack module, data buffer controller module, I/O communication interface adapter module and I/O communication interface, and send visual telephone data to described gateway by described connection, then be sent to callee side multimedia terminal after being converted to by described gateway the protocol format data of supporting callee side multimedia terminal; And described mobile terminal is by described connection, via local I/O communication interface, I/O communication interface adapter module, data buffer controller module and multimedia communication protocol stack module, receives that callee side multimedia terminal sends by described connection and by described gateway, be converted to the visual telephone data of the protocol format that the I/O communication interface of described mobile terminal supports successively;
When described mobile terminal is when called, successively via local multimedia communication protocol stack module, data buffer controller module, I/O communication interface adapter module and I/O communication interface, and send visual telephone data to described gateway by described connection, then be sent to described Calling Side multimedia terminal after being converted to by described gateway the protocol format data of supporting described Calling Side multimedia terminal; And described mobile terminal is by described connection, via local I/O communication interface, I/O communication interface adapter module, data buffer controller module and multimedia communication protocol stack module, receives that described Calling Side multimedia terminal sends by described connection and be converted to the visual telephone data after the protocol format that the corresponding I/O communication interface of described mobile terminal supports by described gateway successively.
CN200910092280.2A 2009-09-08 2009-09-08 Method, mobile terminal and communication system for establishing multimedia communication linkage Expired - Fee Related CN102014519B (en)

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