CN101252496A - Multimedia network transmission system, terminal and method - Google Patents
Multimedia network transmission system, terminal and method Download PDFInfo
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- CN101252496A CN101252496A CNA2008101031853A CN200810103185A CN101252496A CN 101252496 A CN101252496 A CN 101252496A CN A2008101031853 A CNA2008101031853 A CN A2008101031853A CN 200810103185 A CN200810103185 A CN 200810103185A CN 101252496 A CN101252496 A CN 101252496A
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Abstract
The invention discloses a multimedia transmission system, a receiving terminal and the receiving method. The receiving terminal can receive multimedia service from a mobile multimedia broadcasting service server through a mobile multimedia broadcasting network, also can receive the identical multimedia service from a website server through the internet, monitors the quality of the multimedia service received in two receiving methods during the initial receiving process and the multimedia service playing process of the receiving terminal, and selects a receiving method with the service quality meeting the playing requirements according to the receiving quality to receive the multimedia service. Through the application of the invention, switching between two network transmission methods can be performed, the purpose of network coverage and complement is achieved, the disadvantage that a single network can not be seamlessly covered is overcome, and thus the users can be provided with the multimedia service better.
Description
Technical field
The present invention relates to the multimedia communication technology field, relate in particular to a kind of multimedia network transmission system, receiving terminal and multimedia transmission method.
Background technology
At present, wireless or wired broadcasting television services has covered a lot of places of the earth, people can receive the TV programme or the program of radio station of various real-time broadcasts by television set or broadcast receiver, in time understand latest news all over the world, local conditions and customs, appreciate movie and television play or theatrical performance etc., especially live telecast technology, the occurent thing of the another place of wide apart on the space directly can be presented on people at the moment by television set, for example people can sit and just can enjoy excellent Olympian various matches at home, experience the sensation of being in the action.Because it is very ripe that broadcast technology has developed, unless be limited to the performance of receiving equipment itself, problems such as excessive, not smooth, intermittent can not appear postponing in the transmission of broadcast multimedia signal, transmission etc. basically.People utilize radio network to appreciate multimedia service technically, have good Experience Degree.
Developing rapidly of internet, make people utilize the online multimedia service of watching of media player more and more general by the Internet, for example people can utilize terminal by the form of webpage embedded player or directly utilize media player to be connected to multimedia server, multimedia service data is transferred on the local terminal in real time plays, such as watching the Online Video program request, watch net cast, listening to audio broadcast program etc., but at present owing to be subjected to bandwidth constraints, also very can not be satisfactory based on the real-time result of broadcast of the audio frequency and video of the Internet, the user is when watching net cast by webpage, owing to can not satisfy broadcast request to the multimedia video code stream of local terminal by the Internet network download, be that local player has to data are carried out buffer memory, wait for after transfer of data is finished one section and play this section audio-video frequency content more continuously, the speed of Internet network direct broadcasting is slow and discontinuous, causes poor user experience.
Simultaneously, wireless communication technology universal day by day makes people more and more frequent to the use of mobile phone, and mobile phone has given people the very big degree of freedom because of its removable communication, and is also more and more higher to people's significance level.The value-added service of carrying out based on basic communication function based on mobile phone becomes following trend, the current 3G (Third Generation) Moblie technology of extensively being paid close attention to, the problem that it mainly solves, be exactly how to provide bigger bandwidth to satisfy the multimedia service demand of people based on mobile communication technology, value-added services such as for example various mobile video conversations, mobile TV, surfing Internet with cell phone.
From the above, people can obtain required multimedia service by radio network, the Internet, mobile radio communication, but carry out multimedia service when realizing, the quality of carrying out multimedia service but is not quite similar, even has very big difference.For example the live quality of the audio frequency and video of television broadcasting is fine, the user experience height, cause the audio-video code stream transmission smooth inadequately but then be subject to bandwidth considerations, cause problems such as video signal quality is bad, picture is discontinuous, time-delay is big based on the multimedia service of the Internet.
In addition, any network all can not be realized seamless covering fully, possibility cell phone signal is good in certain areas, the poor signal then in the other area, when if the user inserts the Internet by mobile phone, during from the good regional entering signal difference of signal regional, suppose that the user watches net cast by mobile phone, then may cause live signal very poor, influence the user and watch.Because broadcast singal has wide coverage and signal quality height, at this moment,,, then can guarantee user's program watching quality by the user terminal receiving broadcast signal if the mode of watching of this programme televised live can be switched to the multi-media broadcast broadcast mode.
Therefore, how to merge the multiple network characteristics, convenient, convenient, reliably for the user provides the high quality multimedia business, especially provide the high business such as net cast of real-time to become to need a technical problem that solves.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of multimedia network transmission system, terminal and method, real-time switching when the multimedia service that is used for realizing the Internet and/or mobile media broadcasting network broadcasts is broadcasted, to reach the multiple network characteristics that merge, convenient, convenient, provide the purpose of high quality multimedia business for the user reliably, especially provide real-time high business such as net cast.
The technical solution used in the present invention is:
The present invention at first provides a kind of multi-media transmission system, comprising: multimedia source server, mobile multi-media broadcasting service server, mobile media broadcasting network, Website server, the Internet, receiving terminal, wherein:
The multimedia source server is used to provide the signal number certificate of multimedia service;
Described mobile multi-media broadcasting service server is used for obtaining the multimedia service flow data and passing through the mobile media broadcasting network broadcast transmission to described receiving terminal from the multimedia source server;
Described Website server, be connected alternately with receiving terminal by the Internet, be used for obtaining the multimedia service flow data from the multimedia source server, with wireless Internet or wired internet mode to receiving terminal send multimedia service data and with mutual signaling message of described receiving terminal or business datum;
Described receiving terminal is used for reception, play multimedia business and detects the multimedia service quality, selects to receive multimedia service from mobile multi-media broadcasting service server or Website server according to the quality-monitoring result.
Further, in above-mentioned multi-media transmission system:
Described receiving terminal, comprise the business monitoring module that is used to monitor the multimedia service quality, the Internet access module that is used to receive the mobile multi-media broadcasting service receiver module of mobile multi-media broadcasting service and is used to realize Internet service, described mobile multi-media broadcasting service receiver module and the Internet access module are interconnected each other, and all link to each other with described business monitoring module.
Further, in above-mentioned multi-media transmission system:
Receive multimedia service by the Internet from Website server if described receiving terminal is current, described business monitoring module detects the multimedia service quality and satisfy not to broadcast when requiring, whether then detect described mobile multi-media broadcasting service receiver module normal, if normal, then notify described the Internet access module to send and carry the Mobile Multimedia Broadcasting physical channel configuration information request message of service identification information to Website server;
Described Website server then sends the business request information of carrying described service identification information according to service identification information to described mobile multi-media broadcasting service server; Described mobile multi-media broadcasting service server is if current multimedia service of also broadcasting described service identification information correspondence then returns the corresponding broadcast physical channel configuration information that carries described service identification information to Website server; Website server sends to receiving terminal with described physical channel configuration information together with service identification information;
The Internet access module of receiving terminal sends to described mobile multi-media broadcasting service receiver module with described physical channel configuration information together with service identification information, described mobile multi-media broadcasting service receiver module jumps to the corresponding physical channel automatically according to physical channel configuration information, receives the multi-media broadcasting service of this service identification information correspondence.
The business monitoring module of described portable terminal is undesired if detect the work of mobile multimedia receiver module, or the multimedia service quality of current reception can not satisfy broadcast request, then still receives by the receiving mode of the multimedia service of current internet.
Further, in above-mentioned multi-media transmission system:
Receive multimedia service by mobile media broadcasting network from the mobile multi-media broadcasting service server if described receiving terminal is current, described business monitoring module detects the multimedia service quality and satisfy not to broadcast when requiring, then control mobile multimedia receiver module notice the Internet access module and initiate the multimedia service request message to Website server, carry service identification information and the current station address of playing this multimedia service in this message, described Website server then sends to receiving terminal with the multimedia service of correspondence by the Internet according to described service identification information, and the Internet access module of this receiving terminal inserts this multimedia service by Internet.
Further, in above-mentioned multi-media transmission system:
Described mobile multi-media service server and Website server are shared the service identification information that comprises service numbers that various multimedia services on the multimedia source server are arranged.
Described mobile multi-media broadcasting service receiver module comprises: mobile multimedia broadcast receiving card or embedded mobile multimedia broadcast receiving chip.
Described receiving terminal is computer, mobile phone, PDA, mobile TV or the intelligent terminal that has internet access capability and Mobile Multimedia Broadcasting receiving ability simultaneously.
Described service identification information comprises: service numbers;
Described physical configuration information comprises: frequency point number, timeslot number, modulation system, RS coded system or their combination.
The present invention further also provides a kind of receiving terminal, has from the ability of the Internet and mobile media broadcasting network reception multimedia service, and this receiving terminal comprises:
Be used to monitor the business monitoring module of multimedia service quality, the Internet access module that is used to receive the mobile multi-media broadcasting service receiver module of mobile multi-media broadcasting service and is used to realize Internet service, wherein, described mobile multi-media broadcasting service receiver module and the Internet access module are interconnected each other, and all link to each other with described business monitoring module.
Further, in the technical scheme of above-mentioned receiving terminal:
Receive multimedia service by the Internet from Website server if described receiving terminal is current, when described business monitoring module monitors requires to the satisfied broadcast of multimedia service quality, whether then detect described mobile multi-media broadcasting service receiver module normal, if normal, then notify described the Internet access module to send and carry the Mobile Multimedia Broadcasting physical channel configuration information request message of service identification information to Website server;
The Internet access module of described receiving terminal is after receiving the Mobile Multimedia Broadcasting physical channel configuration information that Website server returns, described physical channel configuration information is sent to described mobile multi-media broadcasting service receiver module together with service identification information, described mobile multi-media broadcasting service receiver module jumps to the corresponding physical channel automatically according to physical channel configuration information, and this receiving terminal switches to the multi-media broadcasting service that is received this service identification information correspondence by the mobile multi-media broadcasting service receiver module.
The business monitoring module of described portable terminal is undesired if detect the work of mobile multimedia receiver module, then still presses the receiving mode of the multimedia service of current internet, carries out multimedia service by the Internet access module and receives.
Further, in the technical scheme of above-mentioned receiving terminal:
Receive multimedia service by mobile media broadcasting network from the mobile multi-media broadcasting service server if described receiving terminal is current, described business monitoring module detects the multimedia service quality and satisfy not to broadcast when requiring, then control mobile multimedia receiver module notice the Internet access module and initiate the multimedia service request message, carry service identification information and the current station address of playing this multimedia service in this message to Website server;
The Internet access module of described receiving terminal is received the multimedia service of the correspondence that described Website server sends according to described service identification information, and this receiving terminal switches to by the Internet access module and inserts this multimedia service by the Internet.
Further, in the technical scheme of above-mentioned receiving terminal:
Described mobile multi-media broadcasting service receiver module comprises: mobile multimedia broadcast receiving card or embedded mobile multimedia broadcast receiving chip.
Described receiving terminal is computer, mobile phone, PDA, mobile TV or the intelligent terminal that has internet access capability and Mobile Multimedia Broadcasting receiving ability simultaneously.
Described service identification information comprises: service numbers;
Described physical configuration information comprises: a kind of in frequency point number, timeslot number, modulation system, the RS coded system or their combination.
Further, in the technical scheme of above-mentioned receiving terminal:
Described receiving terminal further comprises user interface, described user interface comprises unified multimedia service user interface and/or the Internet access module user interface and/or mobile multimedia receiving mode user interface, described user interface is used for selecting multimedia service for the user, and whether the prompting user switches when switching receiving mode.
The present invention further also provides a kind of multimedia transmission method based on above-mentioned multimedia system, comprises the steps:
Receiving terminal is when initially inserting or watching multimedia service, monitoring the Internet access module and/or the current quality of reception to this multimedia service of Mobile Multimedia Broadcasting receiving mode, the receiving mode that the selective reception quality satisfies broadcast request from described two kinds of patterns receives broadcast to this multimedia service.
Further, in the technical scheme of the method for above-mentioned multimedia transmission:
Receive multimedia service by the Internet from Website server if described receiving terminal is current, the multimedia service quality that monitors described receiving terminal does not satisfy to be broadcasted when requiring, whether then detect described mobile multi-media broadcasting service receiver module normal, if normal, then send and carry the Mobile Multimedia Broadcasting physical channel configuration information request message of service identification information to Website server;
Described Website server sends the business request information of carrying described service identification information according to service identification information to the mobile multi-media broadcasting service server; Described mobile multi-media broadcasting service server is if current multimedia service of also broadcasting described service identification information correspondence then returns the corresponding broadcast physical channel configuration information that carries described service identification information to Website server; Website server sends to receiving terminal with described physical channel configuration information together with service identification information;
Receiving terminal then jumps to the physical channel of corresponding service identification information automatically according to described physical channel configuration information, receive the multi-media broadcasting service of this service identification information correspondence, broadcast requirement if receiving terminal detection multimedia service quality satisfies, then switch to and adopt the Mobile Multimedia Broadcasting receiving mode to receive this multimedia service of broadcast.
Further, in the technical scheme of the method for above-mentioned multimedia transmission, further comprise:
If the mobile multimedia receiver module work that detects on it of portable terminal is undesired, or the multimedia service quality of current reception can not satisfy broadcast request, then still receives by the receiving mode of the multimedia service of current internet.
Further, in the technical scheme of the method for above-mentioned multimedia transmission, described method further comprises:
Receive multimedia service by mobile media broadcasting network from the mobile multi-media broadcasting service server if described receiving terminal is current, the multimedia service quality that detects described receiving terminal does not satisfy to be broadcasted when requiring, then initiate the multimedia service request message to Website server, carry service identification information and the current station address of playing this multimedia service in this message, described Website server then sends to receiving terminal with the multimedia service of correspondence by the Internet according to described service identification information, judge that the multimedia service quality satisfies broadcast request if detect, then this receiving terminal switches to by the Internet and inserts this multimedia service.
Further, in the technical scheme of the method for above-mentioned multimedia transmission, described method further comprises:
If described receiving terminal can't be connected to described Website server or the multimedia service quality that received can not satisfy broadcast request, then continue to adopt the Mobile Multimedia Broadcasting receiving mode to receive multimedia service.
Further, in the technical scheme of the method for above-mentioned multimedia transmission:
When described receiving terminal initially inserts at the selected multimedia service of user, detect the quality of reception of interconnection network access mode and the quality of reception of mobile media broadcast reception mode respectively, the receive mode that therefrom selective reception quality satisfies broadcast request receives selected multimedia service;
The physical channel configuration information that described mobile multi-media broadcasting service receives is to be obtained or obtain by the local electron service instruction of preserving from the mobile multi-media broadcasting service server by Website server by the Internet.
Further, in the technical scheme of the method for above-mentioned multimedia transmission:
Described receiving terminal ejects service informing to the user when carrying out the switching of described the Internet access module and described mobile multi-media broadcasting service receiving mode, select whether to switch or select which kind of access module for the user.
Described service identification information comprises: service numbers;
Described physical configuration information comprises: a kind of in frequency point number, timeslot number, modulation system, the RS coded system or their combination.
Use the present invention and can realize the multimedia service transmission by many networks, especially can realize many network direct broadcastings, the business monitoring module of receiving terminal detects and compares the quality of reception of the Network Transmission business of the Internet receiving mode and Mobile Multimedia Broadcasting receiving mode among the present invention, as BER (Bit Error Rate, bit error rate), frame error rate FER (Frame Error Rate) performance index etc., therefrom select a kind of receive mode that satisfies broadcast request.Also can between two kinds of transmission meanss, automatically switch, when the detection judgement need switch to the Mobile Multimedia Broadcasting receiving mode by the Internet receiving mode, the physical channel configuration information that issues the mobile media broadcasting network of this programme televised live by Website server is given terminal, as frequency, timeslot number, modulation coding mode etc., terminal reads this physical channel configuration information, the Mobile Multimedia Broadcasting receiver module jumps to corresponding physical channel (Channel) automatically, receives programme televised live; Handoff procedure can be realized the shielding to the user, makes the user need not know the transmission means of current media; Simultaneously, the present invention is switched between two kinds of Network Transmission modes, reaches the purpose of network coverage complementation, has overcome the shortcoming that single network can't seamless covering, can provide multimedia service for the user better.
Description of drawings
Fig. 1 is the Organization Chart of multi-media transmission system among the present invention;
Fig. 2 is that employing dual mode of the present invention switches the receiving terminal structure chart that receives multimedia programming;
Fig. 3 is an Organization Chart of realizing the multi-media transmission system of net cast among the present invention based on the CMMB mobile multimedia network;
Fig. 4 is a flow chart of realizing net cast among the present invention based on the CMMB mobile multimedia network.
Embodiment
Below in conjunction with drawings and Examples technical scheme of the present invention is described in detail.
The invention provides a kind of multi-media transmission system that utilizes the Internet and mobile media broadcasting network to merge mutually, as shown in Figure 1, in this system, comprise:
The multimedia source server is used to provide the signal number certificate of multimedia service, for example preserves the film of using for user's program request or generate to be used for the net cast signal of live sports tournament or the audio signal of online broadcasting etc.;
The mobile multi-media service server, be used for from the multimedia source server obtain the multimedia service flow data and by mobile media broadcasting network to receiving terminal broadcast transmission multimedia service;
Website server, being used for obtaining the multimedia service flow data from the multimedia source server also is connected with receiving terminal alternately by the Internet (Internet network), send to receiving terminal with wireless Internet or wired internet mode and to comprise the multiple website business of multimedia service, and can receive signaling message that described receiving terminal uploads or business datum etc.; Also can be used for obtaining multimedia service broadcast physical channel information, and send to terminal from the mobile multi-media service server.
Mobile media broadcasting network is used to realize that the mobile multi-media service server connects to the network of receiving terminal;
The Internet is used to realize the network interconnection of Website server to receiving terminal;
Receiving terminal, be used for by mobile media broadcasting network from mobile multi-media service server receiving multimedia broadcast business datum, be used for receiving multimedia service data alternately from Website server by the Internet, it comprises and is used to receive the mobile multi-media service receiver module of mobile multi-media service and be used to realize the Internet access module of Internet service, and the business monitoring module that is used to monitor the multimedia service quality.
As shown in Figure 1, the user is utilizing receiving terminal (for example computer or have the mobile phone of the Internet access function) to carry out Internet access service, when arriving Website server by the Internet Internet connection, can browse web sites, the miscellaneous service function of selecting the website to provide, for example when the website provided video living broadcast programs, the user can select this net cast business by the user interface on the computer.Common net cast business, for example the competitive sports live signal is normally provided by the multimedia source server of live telecast signal supplying, after the user selects this competitive sports live broadcast service, obtain this net cast signal according to the service numbers of selected business from the multimedia source server by Website server, and this net cast signal watched for the user by internet transmission to computer, usually adopt on computers webpage embedded player form or directly the form of invokes media players come the physical culture broadcasting of user's excellence is presented in the net cast signal that the is received broadcast of decoding.Described receiving terminal can also be mobile phone with the Internet access function, PDA, mobile TV etc.
As shown in Figure 2, provided a kind of structure chart that receives the receiving terminal of multimedia service from the Internet and mobile media broadcasting network that has, this receiving terminal comprises the business monitoring module that is used to monitor the multimedia service quality, the Internet access module that is used to receive the mobile multi-media broadcasting service receiver module of mobile multi-media broadcasting service and is used to realize Internet service, described mobile multi-media broadcasting service receiver module and the Internet access module are interconnected each other, and all link to each other with described business monitoring module.Described business monitoring module, in the time of can or broadcasting multimedia service when initial access multimedia service, detect quality of service, and adopt the mobile multi-media broadcasting service receiver module still to adopt the Internet access module reception multimedia service when selecting according to quality of service.
Receive multimedia service by the Internet from Website server if described receiving terminal is current, when described business monitoring module monitors requires to the satisfied broadcast of multimedia service quality, whether then detect described mobile multi-media broadcasting service receiver module normal, if it is normal, then notify described the Internet access module to send and carry the Mobile Multimedia Broadcasting physical channel configuration information request message of service identification information, by the physical channel configuration information of Website server to the corresponding current business of mobile multi-media service server requests to Website server; The Internet access module of described receiving terminal is after receiving the Mobile Multimedia Broadcasting physical channel configuration information that Website server returns, described physical channel configuration information is sent to described mobile multi-media broadcasting service receiver module together with service identification information, described mobile multi-media broadcasting service receiver module jumps to the corresponding physical channel automatically according to physical channel configuration information, and this receiving terminal switches to the multi-media broadcasting service that is received this service identification information correspondence by the mobile multi-media broadcasting service receiver module.
The business monitoring module of described portable terminal is undesired if detect the work of mobile multimedia receiver module, when perhaps detecting described multimedia service quality and can not satisfy broadcast request, then still press the receiving mode of the multimedia service of current internet, carry out multimedia service by the Internet access module and receive.
Receive multimedia service by mobile media broadcasting network from the mobile multi-media broadcasting service server if described receiving terminal is current, described business monitoring module detects the multimedia service quality and satisfy not to broadcast when requiring, then control mobile multimedia receiver module notice the Internet access module and initiate the multimedia service request message, carry service identification information and the current station address of playing this multimedia service in this message to Website server; The Internet access module of described receiving terminal is received the multimedia service of the correspondence that described Website server sends according to described service identification information, and this receiving terminal switches to by the Internet access module and inserts this multimedia service by Internet.
Because when wired access in the Internet at present or wireless access, thereby the transfer of data that causes limited bandwidth can not satisfy smooth requirement of broadcasting vision signal, perhaps because some reason causes the discontinuous grade of transfer of data all can influence user's online in real time and watches multimedia programming.Described mobile multi-media broadcasting service receiver module comprises: mobile multimedia broadcast receiving card or embedded mobile multimedia broadcast receiving chip.If in accessing terminal, increase the mobile multimedia receiving equipment, for example mobile multimedia broadcast receiving card or embedded mobile multimedia broadcast receiving chip, the user is when needs receiver, video programme televised live, many again a kind of selections, both can select interconnected network mode to appreciate program, and also can select to appreciate program by broadcast mode.
As shown in Figure 1, the user can select required multimedia service by unified user interface, also can select required multimedia service by the Internet or the independent user interface of mobile media broadcasting network.Professional system side is being provided, and mobile multi-media service server and Website server are shared the service numbers that various multimedia services on the multimedia source server are arranged.
Embodiment 1: receiving terminal switches to the mobile media broadcasting network receiving mode by the Internet receiving mode.
The user is by the video living broadcast programs of a certain website of terminal internet login, and receiving terminal is play this multimedia service by webpage embedded player or independent media player for the user by the multimedia service data of the Internet access module reception website.
When receiving terminal begins the play multimedia business, start the business monitoring module, detect the quality of reception of the multimedia service of current broadcast, for example the error rate (BER), frame error rate (FER) etc.Find program quality relatively poor (for example the error rate or frame error rate are lower than setting threshold) if detect, influenced user experience, whether then detect the Mobile Multimedia Broadcasting receiver module automatically working properly, judge promptly whether current mobile multimedia broadcast signal satisfies condition of acceptance, if it is normal, then initiate Mobile Multimedia Broadcasting physical channel configuration information request message to Website server by the Internet access module of terminal, carry service identification information in this message, for example service numbers is used to show that this receiving terminal need utilize the physical channel of Mobile Multimedia Broadcasting to receive this business; After Website server receives Mobile Multimedia Broadcasting physical channel configuration information request message, send business request information, carry described service identification information in this business request information to the mobile multi-media service server.
After the mobile multi-media broadcasting service server is received the business request information of Website server, if the multimedia service that current this mobile multi-media broadcasting service server is also being broadcasted described service numbers correspondence, then return the physical channel configuration information that carries the corresponding mobile multi-media broadcasting service of this service numbers to Website server, Website server sends to receiving terminal with described physical channel configuration information together with service numbers, receiving terminal then jumps to the corresponding physical channel automatically according to physical channel configuration information, receives the multi-media broadcasting service of this service numbers correspondence.Wherein, described physical configuration information comprises: frequency point number, timeslot number, modulation system, RS coded system etc.
Receiving terminal is after utilizing the Mobile Multimedia Broadcasting receiver module to begin to receive the multi-media broadcasting service of described service numbers correspondence, for being now, the user can adopt multiple mode, described Mobile Multimedia Broadcasting receiver module receives that described service numbers begins to receive afterwards the multimedia broadcast data of this service numbers correspondence, and the multimedia broadcast data decoding that receives is converted to the media formats that player that the active user using is supported, perhaps directly start the specific player of mobile multimedia and play and close the player that the active user uses simultaneously.
Receiving terminal receives under the play multimedia business model in the Internet, and work is undesired if monitoring module detects the mobile multimedia receiver module, then needn't carry out the step that Mobile Multimedia Broadcasting receives, and still the receiving mode by current business receives.
Embodiment 2: receiving terminal switches to the Internet receiving mode by mobile multimedia net receiving mode.
Behind a certain video living broadcast programs of user interface selective reception of user by the mobile media broadcasting network on the receiving terminal, pass through corresponding physical channel receiving multimedia broadcast business datum according to this multimedia service corresponding physical channel configuration information and service numbers, and the user is presented in the multimedia service broadcast by the player that the Mobile Multimedia Broadcasting receiver module is supported.
Receiving terminal starts the business monitoring module in beginning play multimedia business, detect the performance parameter of the multimedia service of current broadcast, for example the error rate (BER), frame error rate (FER) etc.Find to be used to judge that the performance parameter of signal quality can not satisfy broadcast request if detect, then initiate the multimedia service request message to Website server by mobile multimedia receiver module notice the Internet access module (as Ethernet card), carry service identification information in this message, service numbers for example, and the current station address of playing this multimedia service, be used to show that this receiving terminal need receive this multimedia service; Thereby the Internet access module inserts this business by Internet.Before the switching, also can give, select whether to switch by the user with ejecting switch prompting.
Physical channel configuration information and service numbers on the mobile multimedia receiver module of receiving terminal send to receiving terminal by electron service instruction ESG etc. in advance by the mobile multi-media service server.
Use embodiments of the invention 1 and embodiment 2, can realize that the bimodulus that accesses terminal when watching multimedia service with mobile multimedia receiver module and the Internet access module switches, watch that pattern is active and standby each other for two kinds, receiving terminal is by the signal quality of the multimedia service of the current broadcast of detection, judge whether to want the switching multi-media business to watch pattern, its selection strategy is user's play multimedia business for selecting the preferable pattern of signal quality all the time, so that for the user provides optimal service, obtain user experience preferably.
Embodiment 3:
Receiving terminal further can also provide unified multimedia service user interface for the user, when the user need select multimedia service, enter after this user interface selects a certain multimedia service, receiving terminal calls the business monitoring module, monitoring obtains the broadcast channel mass parameter to broadcast channel by the Internet access module monitoring bandwidth, mobile multi-media broadcasting service receiver module, and the quality under two kinds of patterns of comparison, the receiving mode of prompting user selective channel better quality treats that the user selects the back to carry out the broadcast of watching of multimedia service according to this pattern; Perhaps also can be after the user select a certain multimedia service, and judge which kind of mode channel quality was better when this business received, and did not point out the user to select, and directly started the broadcast of watching that this pattern is carried out multimedia service automatically.
When selected the Internet access module or Mobile Multimedia Broadcasting receiving mode carry out after multimedia service plays, receiving terminal is monitored this multimedia service and the switching mode of follow-up two kinds of patterns, can be with reference to the specific implementation of embodiment 1 or embodiment 2.
Embodiment 4: a kind of receiving terminal of realizing that mobile multimedia net receiving mode and the Internet receiving mode switch.
As shown in Figure 3, described receiving terminal comprises user interface, the Internet access module, Mobile Multimedia Broadcasting receiver module, business monitoring module,
User interface comprises unified multimedia service user interface, the Internet access module user interface, mobile multimedia receiving mode user interface, and described user interface is used for selecting multimedia service for the user;
The Internet access module is used for being undertaken alternately by the Website server of internet and network side, downloads multimedia service data and signaling etc. from Website server, can also be used for uploading signaling message and data to Website server simultaneously;
The Mobile Multimedia Broadcasting receiver module is used for receiving the multimedia service data that broadcast channel sends by mobile media broadcasting network from the mobile multi-media service server;
The business monitoring module is used to detect the quality of the multimedia service data stream that the Internet access module and/or mobile multimedia receiver module received, and judges that according to testing result selecting for use which module to carry out multimedia service receives and play.
Embodiment 5: the receiving terminal with China Mobile's multi-media network of internet access capability is realized the embodiment of net cast.
In this embodiment 5, described receiving terminal is to have in wireless or wired mode to realize the terminal that the Internet inserts, this terminal also has the receiving system of a multimedia system CMMB of China Mobile simultaneously, for example CMMB (China Mobile multimedia broadcasting) receives rod, and Xian Shi system architecture diagram is with reference to Fig. 3 in fact.Be that example be elaborated by computers log-on to certain website browsing net cast with the Internet user below.The mobile multi-media service server of supposing Website server and CMMB system all obtains multi-medium data just at live same multimedia service from the multimedia source server.
Flow chart as shown in Figure 4, at first the user is by computers log-on certain website to the Internet, browsed and selected one just in live video frequency program (for example just in the football match of net cast);
The video data stream that the business monitoring module cycle detection of disposing on the computer is downloaded from Website server, judge whether to reach the data transmission quality that satisfies customer requirements, for example can detect the error rate, judge whether the error rate is lower than the minimum requirements that player plays is given the user, then continue monitoring if satisfy, otherwise whether the reception of the CMMB on detection computations machine rod is working properly;
Satisfy condition of acceptance if judge the CMMB signal, then terminal is initiated the request of CMMB physical channel configuration information by the Internet access module to Website server, carries service identification information (for example service numbers) in this request message;
After the Website server of this website receives this request message, send the request message that carries service numbers to the CMMB service managing server; Suppose that the CMMB radio network is also broadcasting this programme content, the CMMB service managing server returns the CMMB physical channel configuration information of the corresponding video living broadcast programs of this service numbers to Website server.
Website server is notified to terminal with the CMMB physical channel configuration information that obtains, and terminal reads this physical channel configuration information, and the physical channel that jumps to automatically in this physical channel configuration information receives this business.Professional broadcast with present form and can take the form consistent with Website page.Physical configuration information comprises: frequency point number, timeslot number, modulation system, RS coded system etc.
Further, in this embodiment, user's computer that uses of surfing the Net judges whether to be equipped with the Mobile Multimedia Broadcasting receiving equipment by automatic monitoring, finds the Mobile Multimedia Broadcasting receiving equipment is housed if detect, and then the network selecting information occurs on user interface (UI).Allow the user to select Internet or mobile media broadcasting network to watch this class programme televised live.
Above-mentionedly carry out net cast by the Internet model and switch in the net cast process by the Mobile Multimedia Broadcasting pattern, can be fully transparent concerning the user, promptly needn't notify the live receive mode of user video to do change, can avoid like this watching the user and interrupt the user in the process and appreciate programme televised live, the user need not understand network type and the handoff procedure that current program receiving uses.Certainly, also can point out the user in case of necessity, carry out network selecting by the user.Otherwise, when being the Internet model, also can adopt above-mentioned switchover policy by the Mobile Multimedia Broadcasting mode switch.
Except multimedia service, with reference to technical scheme of the present invention, can also utilize the function of two kinds of existing other the similar dual-mode terminals of the active and standby each other realization of network in mobile media broadcasting network and the Internet, perhaps utilize and broadcast the internet function of realizing other, such as FTP or other service content.
Many network direct broadcastings of the present invention are realized in the system and method, control realization by the business monitoring module of receiving terminal, the business monitoring module detects and compares the quality of reception of the Network Transmission business of the Internet receiving mode and Mobile Multimedia Broadcasting receiving mode, as BER (Bit Error Rate, bit error rate), mistake auspicious rate FER (Frame Error Rate) performance index etc., therefrom select a kind of receive mode.Also can between two kinds of transmission meanss, automatically switch, when the detection judgement need switch to the Mobile Multimedia Broadcasting receiving mode by the Internet receiving mode, the physical channel configuration information that issues the mobile media broadcasting network of this programme televised live by Website server is given terminal, as frequency, timeslot number, modulation coding mode etc., terminal reads this physical channel configuration information, the Mobile Multimedia Broadcasting receiver module jumps to corresponding physical channel (Channel) automatically, receives programme televised live; Handoff procedure can be realized the shielding to the user, makes the user need not know the transmission means of current media; Simultaneously, the present invention is switched between two kinds of Network Transmission modes, reaches the purpose of network coverage complementation, has overcome the shortcoming that single network can't seamless covering, can provide multimedia service for the user better.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (25)
1. a multi-media transmission system is characterized in that, comprising: multimedia source server, mobile multi-media broadcasting service server, mobile media broadcasting network, Website server, the Internet, receiving terminal, wherein:
The multimedia source server is used to provide the signal number certificate of multimedia service;
Described mobile multi-media broadcasting service server is used for obtaining the multimedia service flow data and passing through the mobile media broadcasting network broadcast transmission to described receiving terminal from the multimedia source server;
Described Website server, be connected alternately with receiving terminal by the Internet, be used for obtaining the multimedia service flow data from the multimedia source server, with wireless Internet or wired internet mode to receiving terminal send multimedia service data and with mutual signaling message of described receiving terminal or business datum;
Described receiving terminal is used for reception, play multimedia business and detects the multimedia service quality, selects to receive multimedia service from mobile multi-media broadcasting service server or Website server according to the quality-monitoring result.
2. multi-media transmission system as claimed in claim 1 is characterized in that:
Described receiving terminal, comprise the business monitoring module that is used to monitor the multimedia service quality, the Internet access module that is used to receive the mobile multi-media broadcasting service receiver module of mobile multi-media broadcasting service and is used to realize Internet service, described mobile multi-media broadcasting service receiver module and the Internet access module are interconnected each other, and all link to each other with described business monitoring module.
3. multi-media transmission system as claimed in claim 2 is characterized in that:
Receive multimedia service by the Internet from Website server if described receiving terminal is current, described business monitoring module detects the multimedia service quality and satisfy not to broadcast when requiring, whether then detect described mobile multi-media broadcasting service receiver module normal, if normal, then notify described the Internet access module to send and carry the Mobile Multimedia Broadcasting physical channel configuration information request message of service identification information to Website server;
Described Website server then sends the business request information of carrying described service identification information according to service identification information to described mobile multi-media broadcasting service server; Described mobile multi-media broadcasting service server is if current multimedia service of also broadcasting described service identification information correspondence then returns the corresponding broadcast physical channel configuration information that carries described service identification information to Website server; Website server sends to receiving terminal with described physical channel configuration information together with service identification information;
The Internet access module of receiving terminal sends to described mobile multi-media broadcasting service receiver module with described physical channel configuration information together with service identification information, described mobile multi-media broadcasting service receiver module jumps to the corresponding physical channel automatically according to physical channel configuration information, receives the multi-media broadcasting service of this service identification information correspondence.
4. multi-media transmission system as claimed in claim 3 is characterized in that:
The business monitoring module of described portable terminal is undesired if detect the work of mobile multimedia receiver module, or the multimedia service quality of current reception can not satisfy broadcast request, then still receives by the receiving mode of the multimedia service of current internet.
5. multi-media transmission system as claimed in claim 2 is characterized in that:
Receive multimedia service by mobile media broadcasting network from the mobile multi-media broadcasting service server if described receiving terminal is current, described business monitoring module detects the multimedia service quality and satisfy not to broadcast when requiring, then control mobile multimedia receiver module notice the Internet access module and initiate the multimedia service request message to Website server, carry service identification information and the current station address of playing this multimedia service in this message, described Website server then sends to receiving terminal with the multimedia service of correspondence by the Internet according to described service identification information, and the Internet access module of this receiving terminal inserts this multimedia service by Internet.
6. as each described multi-media transmission system in the claim 1 to 5, it is characterized in that:
Described mobile multi-media service server and Website server are shared the service identification information that comprises service numbers that various multimedia services on the multimedia source server are arranged.
7. as each described multi-media transmission system in the claim 2 to 5, it is characterized in that:
Described mobile multi-media broadcasting service receiver module comprises: mobile multimedia broadcast receiving card or embedded mobile multimedia broadcast receiving chip.
8. each described multi-media transmission system in the claim 1 to 5 is characterized in that:
Described receiving terminal is computer, mobile phone, PDA, mobile TV or the intelligent terminal that has internet access capability and Mobile Multimedia Broadcasting receiving ability simultaneously.
9. as each described multi-media transmission system in the claim 2 to 5, it is characterized in that:
Described service identification information comprises: service numbers;
Described physical configuration information comprises: frequency point number, timeslot number, modulation system, RS coded system or their combination.
10. a receiving terminal is characterized in that, has from the ability of the Internet and mobile media broadcasting network reception multimedia service, and it comprises:
Be used to monitor the business monitoring module of multimedia service quality, the Internet access module that is used to receive the mobile multi-media broadcasting service receiver module of mobile multi-media broadcasting service and is used to realize Internet service, described mobile multi-media broadcasting service receiver module and the Internet access module are interconnected each other, and all link to each other with described business monitoring module.
11. receiving terminal as claimed in claim 10 is characterized in that:
Receive multimedia service by the Internet from Website server if described receiving terminal is current, when described business monitoring module monitors requires to the satisfied broadcast of multimedia service quality, whether then detect described mobile multi-media broadcasting service receiver module normal, if normal, then notify described the Internet access module to send and carry the Mobile Multimedia Broadcasting physical channel configuration information request message of service identification information to Website server;
The Internet access module of described receiving terminal is after receiving the Mobile Multimedia Broadcasting physical channel configuration information that Website server returns, described physical channel configuration information is sent to described mobile multi-media broadcasting service receiver module together with service identification information, described mobile multi-media broadcasting service receiver module jumps to the corresponding physical channel automatically according to physical channel configuration information, and this receiving terminal switches to the multi-media broadcasting service that is received this service identification information correspondence by the mobile multi-media broadcasting service receiver module.
12. receiving terminal as claimed in claim 11 is characterized in that:
The business monitoring module of described portable terminal is undesired if detect the work of mobile multimedia receiver module, then still presses the receiving mode of the multimedia service of current internet, carries out multimedia service by the Internet access module and receives.
13. receiving terminal as claimed in claim 10 is characterized in that:
Receive multimedia service by mobile media broadcasting network from the mobile multi-media broadcasting service server if described receiving terminal is current, described business monitoring module detects the multimedia service quality and satisfy not to broadcast when requiring, then control mobile multimedia receiver module notice the Internet access module and initiate the multimedia service request message, carry service identification information and the current station address of playing this multimedia service in this message to Website server;
The Internet access module of described receiving terminal is received the multimedia service of the correspondence that described Website server sends according to described service identification information, and this receiving terminal switches to by the Internet access module and inserts this multimedia service by the Internet.
14., it is characterized in that as each described receiving terminal in the claim 10 to 13:
Described mobile multi-media broadcasting service receiver module comprises: mobile multimedia broadcast receiving card or embedded mobile multimedia broadcast receiving chip.
15., it is characterized in that as each described receiving terminal in the claim 10 to 13:
Described receiving terminal is computer, mobile phone, PDA, mobile TV or the intelligent terminal that has internet access capability and Mobile Multimedia Broadcasting receiving ability simultaneously.
16., it is characterized in that as each described receiving terminal in the claim 10 to 13:
Described service identification information comprises: service numbers;
Described physical configuration information comprises: a kind of in frequency point number, timeslot number, modulation system, the RS coded system or their combination.
17., it is characterized in that as each described receiving terminal in the claim 10 to 13:
Described receiving terminal further comprises user interface, described user interface comprises unified multimedia service user interface and/or the Internet access module user interface and/or mobile multimedia receiving mode user interface, described user interface is used for selecting multimedia service for the user, and whether the prompting user switches when switching receiving mode.
18. the multimedia transmission method based on the described multimedia system of claim 1 is characterized in that:
Receiving terminal is when initially inserting or watching multimedia service, monitoring the Internet access module and/or the current quality of reception to this multimedia service of Mobile Multimedia Broadcasting receiving mode, the receiving mode that the selective reception quality satisfies broadcast request from described two kinds of patterns receives broadcast to this multimedia service.
19. multimedia transmission method as claimed in claim 18 is characterized in that:
Receive multimedia service by the Internet from Website server if described receiving terminal is current, the multimedia service quality that monitors described receiving terminal does not satisfy to be broadcasted when requiring, whether then detect described mobile multi-media broadcasting service receiver module normal, if normal, then send and carry the Mobile Multimedia Broadcasting physical channel configuration information request message of service identification information to Website server;
Described Website server sends the business request information of carrying described service identification information according to service identification information to the mobile multi-media broadcasting service server; Described mobile multi-media broadcasting service server is if current multimedia service of also broadcasting described service identification information correspondence then returns the corresponding broadcast physical channel configuration information that carries described service identification information to Website server; Website server sends to receiving terminal with described physical channel configuration information together with service identification information;
Receiving terminal then jumps to the physical channel of corresponding service identification information automatically according to described physical channel configuration information, receive the multi-media broadcasting service of this service identification information correspondence, broadcast requirement if receiving terminal detection multimedia service quality satisfies, then switch to and adopt the Mobile Multimedia Broadcasting receiving mode to receive this multimedia service of broadcast.
20. multimedia transmission method as claimed in claim 19 is characterized in that: described method further comprises:
If the mobile multimedia receiver module work that detects on it of portable terminal is undesired, or the multimedia service quality of current reception can not satisfy broadcast request, then still receives by the receiving mode of the multimedia service of current internet.
21. multimedia transmission method as claimed in claim 18 is characterized in that: described method further comprises:
Receive multimedia service by mobile media broadcasting network from the mobile multi-media broadcasting service server if described receiving terminal is current, the multimedia service quality that detects described receiving terminal does not satisfy to be broadcasted when requiring, then initiate the multimedia service request message to Website server, carry service identification information and the current station address of playing this multimedia service in this message, described Website server then sends to receiving terminal with the multimedia service of correspondence by the Internet according to described service identification information, judge that the multimedia service quality satisfies broadcast request if detect, then this receiving terminal switches to by the Internet and inserts this multimedia service.
22. multimedia transmission method as claimed in claim 21 is characterized in that: described method further comprises:
If described receiving terminal can't be connected to described Website server or the multimedia service quality that received can not satisfy broadcast request, then continue to adopt the Mobile Multimedia Broadcasting receiving mode to receive multimedia service.
23. multimedia transmission method as claimed in claim 18 is characterized in that:
When described receiving terminal initially inserts at the selected multimedia service of user, detect the quality of reception of interconnection network access mode and the quality of reception of mobile media broadcast reception mode respectively, the receive mode that therefrom selective reception quality satisfies broadcast request receives selected multimedia service;
The physical channel configuration information that described mobile multi-media broadcasting service receives is to be obtained or obtain by the local electron service instruction of preserving from the mobile multi-media broadcasting service server by Website server by the Internet.
24., it is characterized in that as claim 19,21 or 23 described multimedia transmission methods:
Described receiving terminal ejects service informing to the user when carrying out the switching of described the Internet access module and described mobile multi-media broadcasting service receiving mode, select whether to switch or select which kind of access module for the user.
25., it is characterized in that as each described multimedia transmission method in the claim 19 to 23:
Described service identification information comprises: service numbers;
Described physical configuration information comprises: a kind of in frequency point number, timeslot number, modulation system, the RS coded system or their combination.
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| CN2008101031853A CN101252496B (en) | 2008-04-01 | 2008-04-01 | Multimedia network transmission system, terminal and method |
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| CN2008101031853A CN101252496B (en) | 2008-04-01 | 2008-04-01 | Multimedia network transmission system, terminal and method |
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