CN101772115A - Mobile terminal and video playing method, hybrid network and video data transmitting method - Google Patents
Mobile terminal and video playing method, hybrid network and video data transmitting method Download PDFInfo
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- CN101772115A CN101772115A CN200810241183A CN200810241183A CN101772115A CN 101772115 A CN101772115 A CN 101772115A CN 200810241183 A CN200810241183 A CN 200810241183A CN 200810241183 A CN200810241183 A CN 200810241183A CN 101772115 A CN101772115 A CN 101772115A
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Abstract
The invention relates to a technology for a mobile terminal to receive video data from a hybrid network and play the video, which belongs to the field of mobile communication, and provides a mobile terminal and a video playing method, a hybrid network and a video data transmitting method. The method comprises the following steps: the mobile terminal receives video data transmitted by a broadcasting network; mobile terminal obtains the video data from a streaming media service distribution system when the intensity of the broadcasting network signal is detected to be smaller than a first threshold value; the mobile terminal stops receiving the video data from the broadcasting network when the signal intensity is detected to be smaller than a second threshold value, and performs playing according to the video data obtained from the streaming media service distribution system. Because the mobile terminal still receives the video data from the broadcasting network when the signal intensity is smaller than the first threshold value and simultaneously obtains the video data by being connected with the streaming media service distribution system, The interruption of video playing in the switching process can be avoided, and the band width resource of the broadcasting network is utilized as far as possible.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to portable terminal carries out video playback from the hybrid network receiving video data technology.
Background technology
The hybrid network system that radio network combines with the mobile network can be used as the bearer network of mobile multi-media broadcasting service.Radio network such as DVB-H (handheld terminal digital video broadcasting), CMMB (China Mobile multimedia broadcasting) provide the downlink broadcast channel to the user, realize the broadcast type mobile multimedia.It then mainly is to adopt the mode of Streaming Media to carry out point-to-point transmission that the mobile network provides multimedia service, is video information compression that stream media format is placed on the webserver, for the portable terminal downloading and playing.
Because radio network is " a bit to multiple spot " for the terminal use provides the mode of multimedia service by the mode of broadcasting, and transmit on the high-bandwidth channels, in its overlay area, to the number of users that receives broadcasting without limits, be a kind of economy, high quality multimedia service providing system.
But the wireless signal coverage rate that radio network sends is then not as the mobile network.Such as, the wireless signal decay that sends at the studio broadcast network is bigger, and the signal that the mobile network sends is at present preferably in the covering chamber.
When providing a kind of wireless signal decay that sends at radio network greatly in the prior art, portable terminal switches to the mobile network and continues to download multimedia method, thereby makes portable terminal to continue multimedia reception in the broadcast network signal larger area of decaying.This method specifically comprises: terminal regularly detects broadcast signal strength in the video process that receives the radio network transmission, when broadcast signal strength was lower than certain set point: terminal stopped to receive the business tine of radio network; According to the chained address in the electron service instruction, be connected to corresponding streaming media service dissemination system, and start DST PLAYER; The streaming media service dissemination system to terminal authentication after, to terminal return authentication by the response; Terminal sends playing request to the streaming media service dissemination system; The streaming media service dissemination system sends the packet of corresponding multimedia file according to the playing request that receives to terminal; Terminal is play the multimedia file that receives in DST PLAYER.
Though, when the wireless signal that portable terminal sends at radio network is decayed greatly, can obtain the content of video file by the mobile network according to the scheme of prior art.But, portable terminal is obtaining to have interrupted video playback before the relevant video content from the mobile network, and before the mobile network obtains video content, bigger time delay is arranged, make that also the time of interrupting is longer, cause mobile phone users to watch that the video frequency program impression is not good.
Summary of the invention
The embodiment of the invention provides a kind of portable terminal and video broadcasting method thereof, and break of video is play when avoiding portable terminal to switch between radio network and mobile network.
The embodiment of the invention provides a kind of hybrid network system and video data transmitting method thereof, in order to alleviate mobile network's downlink load.
A kind of mobile terminal video player method comprises:
Portable terminal receives the video data of radio network transmission and plays;
When described portable terminal detects signal strength signal intensity that radio network sends less than the first threshold of setting during greater than second threshold value set, streaming media service dissemination system to the mobile network sends the first video data request, the corresponding video data that receiving stream media distribution of services system returns; And continuation receives the video data that radio network sends;
When described portable terminal detects described signal strength signal intensity less than described second threshold value, stop from the radio network receiving video data, and play according to the video data that receives from described streaming media service dissemination system.
A kind of portable terminal comprises:
Broadcast signal detection module, the signal strength signal intensity that is used to detect the radio network transmission is exported first signal less than second presentation time of the first threshold of setting greater than setting; When detecting described signal strength signal intensity less than described second threshold value, the output secondary signal;
Radio network video data receiver module is used to receive the video data that radio network sends, and when receiving described secondary signal, stops to receive the video data that radio network sends;
Mobile network's video data receiver module is used for when receiving described first signal, sends the first video data request to mobile network's streaming media service dissemination system, and receives the corresponding video data that described streaming media service dissemination system returns;
Transmit control module, be used for the video data that described radio network video data receiver module receives is cached to the broadcast cache module, and when receiving described secondary signal, the video data that described mobile network's video data receiver module is received is cached in the broadcast cache module;
The video playback module is used for carrying out video playback according to the video data of described broadcast cache module.
A kind of hybrid network system comprises:
The broadcasting service distributing system of radio network is used for to the portable terminal broadcasting video data;
Mobile network's streaming media service dissemination system is used for when receiving the first video data request of described portable terminal transmission described portable terminal being carried out authentication; After authentication was passed through, partial data was transmitted to described portable terminal in the video data that described portable terminal is asked; When receiving the second video data request that described portable terminal sends, total data is transmitted to described portable terminal in the video data that described portable terminal is asked.
A kind of video data transmitting method comprises:
The broadcasting service distributing system of radio network is to the portable terminal broadcasting video data;
Mobile network's streaming media service dissemination system is when receiving the first video data request of described portable terminal transmission, described portable terminal is carried out authentication, after authentication was passed through, partial data was transmitted to described portable terminal in the video data that described portable terminal is asked; And
When receiving the second video data request that described portable terminal sends, total data is transmitted to described portable terminal in the video data that described portable terminal is asked.
The embodiment of the invention is because portable terminal is provided with dual threshold, when portable terminal detects signal strength signal intensity that radio network sends less than first threshold, still continue from the radio network receiving video data, and connect mobile network's streaming media service dissemination system simultaneously, obtain video data from the streaming media service dissemination system; When portable terminal detected signal strength signal intensity that radio network sends less than second threshold value, portable terminal then stopped from the radio network receiving video data, and the video data that will obtain from mobile network's streaming media service dissemination system is play.Like this, just can avoid portable terminal to switch to break of video broadcast mobile network's process from radio network, the user can have preferable video-see impression.
Because the mobile network can be from the video data synchronized video data of video synchronization device acquisition with current broadcast, thereby portable terminal needn't send playing request etc. to mobile network's streaming media service dissemination system, and the streaming media service dissemination system also needn't be determined the corresponding video data that send again according to request, thereby shortened the time of streaming media service dissemination system response video data on mobile terminal request, made portable terminal can obtain video data as early as possible.
Because when the signal strength signal intensity of radio network transmission during less than first threshold, greater than second threshold value, portable terminal is not whole video datas from the video data that the mobile network receives, but partial video data (such as the I frame data), thereby minimizing mobile network's downlink load.
Description of drawings
Fig. 1 is the hybrid network schematic diagram of the embodiment of the invention one;
Fig. 2 carries out the method flow diagram of video playback for the portable terminal receiving video data of the embodiment of the invention one;
Fig. 3 is the portable terminal internal structure block diagram of the embodiment of the invention one;
Fig. 4 is the hybrid network schematic diagram of the embodiment of the invention two;
Fig. 5 carries out the method flow diagram of video playback for the portable terminal receiving video data of the embodiment of the invention two.
Fig. 6 is the portable terminal internal structure block diagram of the embodiment of the invention two.
Embodiment
The portable terminal that the embodiment of the invention provides is provided with dual threshold, when portable terminal detect signal strength signal intensity that radio network sends less than first threshold (though just portable terminal detect broadcast singal that radio network sends weaken but also not too influence video watch) time, still continue from the radio network receiving video data, and connect mobile network's streaming media service dissemination system simultaneously, obtain video data from the streaming media service dissemination system; When portable terminal detect signal strength signal intensity that radio network sends less than second threshold value (just portable terminal detect broadcast singal attenuation degree that radio network sends the considerable influence video watch) time, portable terminal then stops from the radio network receiving video data, and the video data that will obtain from mobile network's streaming media service dissemination system is play.Like this, just can avoid portable terminal to switch to break of video broadcast mobile network's process from radio network, the user can have preferable video-see impression.
The invention provides two specific embodiments.Wherein, portable terminal is stopping before the radio network receiving video data in the technical scheme of embodiment one, promptly the streaming media service dissemination system from the mobile network obtains video data, and the video data that can obtain from the mobile network with broadcast after the video data that obtains from radio network mixes, when broadcast network signal further decayed, then the video data that obtains according to the mobile network carried out the video broadcast; The technical scheme of embodiment two has more increased video data on the basis of embodiment one synchronous, and video data is selected the technology of transmission.
Embodiment one
Hybrid network as shown in Figure 1, portable terminal comprises following concrete steps from the method flow diagram of the broadcasting service distributing system of radio network and mobile network's streaming media service dissemination system receiving video data, displaying video as shown in Figure 2:
The video data that the broadcasting service distributing system of S201, portable terminal reception radio network is broadcasted.
Under normal circumstances, just the signal strength signal intensity that sends of radio network is enough by force when (such as greater than preset threshold A), portable terminal receives the video data that the broadcasting service distributing system of radio network is broadcasted, and carries out video playback according to the video data that receives from radio network.The video data of broadcasting service distributing system broadcasting can be RTP (Real-time Transport Protocol, real time transport protocol) or MPEG-2 TS stream video data.
S202, when portable terminal detects signal strength signal intensity that radio network sends less than threshold value A, send the first video data request to mobile network's streaming media service dissemination system.
When portable terminal detects signal strength signal intensity that radio network sends less than threshold value A, show that broadcast singal decays to some extent, video playing quality is influenced to some extent, but can also continue to watch.At this moment, portable terminal can send the video data request to the streaming media service dissemination system according to the address of streaming media service dissemination system among the mobile network who provides in the electron service instruction.Comprise the sign of this portable terminal, the service identification that portable terminal is watched video in the first video data request, and the relevant information of the current video of watching of mobile phone users.Such as the sign (channel information) of the current video place channel of watching, the identification information of the perhaps current video of watching (video labeling information).This first video data request has reflected the video data that portable terminal will be asked.Occurrence those skilled in the art of above-mentioned threshold value A can determine according to actual conditions.
S203, streaming media service dissemination system carry out authentication according to the first video data request that portable terminal sends to this portable terminal; If authentication is passed through, return Authentication Response, and carry out following step, otherwise the request of refusal portable terminal.
The streaming media service dissemination system determines that according to the first video data request that portable terminal sends this portable terminal has the authority of watching this video traffic, and then authentication is passed through.
S204, portable terminal send playing request to the streaming media service dissemination system.
S205, streaming media service dissemination system send the packet (being corresponding video data) of corresponding multimedia file according to the playing request that receives to terminal.
S206, portable terminal will mix with the video data that receives from radio network from the video data that the streaming media service dissemination system receives.
Because this moment, portable terminal was decayed to some extent from the signal strength signal intensity that radio network receives, therefore, the video data that receives from radio network has the packet loss phenomenon, then portable terminal is play after can replenishing, be mixed into from the video packets of data that the mobile network receives from the video packets of data that radio network receives, thereby obtains preferable video playback effect.Concrete mixed method is such as can being when receiving the packet of some radio networks, sequence number or timestamp according to each packet, determine the packet that lacks, then will corresponding packet adds to wherein from the video packets of data that the mobile network receives after, carry out video playback.
S207, when portable terminal detects portable terminal and detects signal strength signal intensity that radio network sends less than threshold value B, stop from the radio network receiving video data.
Threshold value B shows that less than threshold value A the signal strength signal intensity that this moment, radio network sent further decays, and then portable terminal can stop from the radio network receiving video data, carries out video playback according to the video data that receives from the mobile network fully.
S208, when portable terminal detects signal strength signal intensity that radio network sends again greater than threshold value A, can continue to play, and being connected of interruption and streaming media service dissemination system from the radio network receiving video data.
Though it will be understood by those skilled in the art that in the above-mentioned explanation, for ease of understanding, the step of method has been adopted the succession description, should be pointed out that for the order of above-mentioned steps and do not do strict the restriction.
A kind of concrete structure of the portable terminal that the embodiment of the invention one provides comprises as shown in Figure 3: broadcast signal detection module 301, radio network video data receiver module 302, mobile network's video data receiver module 303, transmit control module 304, video playback module 305, broadcast cache module 306.
When broadcast signal detection module 301 is used to detect signal strength signal intensity that radio network sends less than first threshold, export first signal; When detecting described signal strength signal intensity less than second threshold value, the output secondary signal; Described second threshold value is less than first threshold; When recovering greater than first threshold again, export the 3rd signal as if the signal strength signal intensity that detects the radio network transmission.
Radio network video data receiver module 302 is used to receive the video data that radio network sends.Be specially, radio network video data receiver module 302 from the radio network receiving video data, and when receiving described secondary signal, stops to receive the video data that radio network sends according to described the 3rd signal.
Mobile network's video data receiver module 303 is used for when receiving described first signal, sends the first video data request to mobile network's streaming media service dissemination system, and receives the corresponding video data that described streaming media service dissemination system returns; And when receiving described the 3rd signal, interrupt and being connected of described streaming media service dissemination system.Mobile network's video data receiver module 303 specifically can be identical with step S202-S207 the present embodiment one from the method for streaming media service dissemination system acquisition corresponding video data, repeats no more herein.
Further, the transmit control module 304 of portable terminal can also be when receiving described first signal, the video data that radio network video data receiver module 302 is received be cached in the broadcast cache module 306 after the video data that mobile network's video data receiver module 303 receives mixes.Concrete mixed method can repeat no more as described in the step S208 herein.
The embodiment of the invention one is because portable terminal is provided with dual threshold, when portable terminal detects signal strength signal intensity that radio network sends less than first threshold, still continue from the radio network receiving video data, and connect mobile network's streaming media service dissemination system simultaneously, obtain video data from the streaming media service dissemination system; When portable terminal detected signal strength signal intensity that radio network sends less than second threshold value, portable terminal then stopped from the radio network receiving video data, and the video data that will obtain from mobile network's streaming media service dissemination system is play.Like this, just can avoid portable terminal to switch to break of video broadcast mobile network's process from radio network, the user can have preferable video-see impression.
Because when the signal strength signal intensity of radio network transmission during less than first threshold, greater than second threshold value, portable terminal will replenish from the video data that the mobile network receives, be mixed into and carry out video playback from the radio network receiving video data, thereby improve video playing quality.
Embodiment two
For hybrid network as shown in Figure 4, the portable terminal that the embodiment of the invention two provides comprises following concrete steps from the method flow diagram of the broadcasting service distributing system of radio network and mobile network's streaming media service dissemination system receiving video data, displaying video as shown in Figure 5:
The video data that the broadcasting service distributing system of S501, portable terminal reception radio network is broadcasted.
S502, when portable terminal detects signal strength signal intensity that radio network sends less than threshold value A, send the first video data request to mobile network's streaming media service dissemination system.Carry the relevant information of the current video of watching of mobile phone users in the first video data request.Such as the sign (channel information) of the current video place channel of watching, the identification information of the perhaps current video of watching (video labeling information).This first video data request has reflected the video data that portable terminal will be asked.
S503, streaming media service dissemination system carry out authentication according to the first video data request that portable terminal sends to this portable terminal; If authentication is passed through, and carries out following step, otherwise the request of refusal portable terminal.
S504, streaming media service dissemination system obtain the synchronization video data from video synchronization device.
Be specially, the streaming media service dissemination system sends the video data request to video synchronization device, carries the relevant information of the current video of watching of mobile phone users that obtains from the described first video data request in the video data request.Such as the sign (channel information) of the current video place channel of watching, the identification information of the perhaps current video of watching (video labeling information).
And video synchronization device can obtain the video data of broadcasting by wired or Radio Link from broadcasting service distributing system.The video data that video synchronization device obtains and the video data of broadcasting service distributing system current broadcast are synchronous, that is to say that the video data of the video data of the current acquisition of video synchronization device and broadcasting service distributing system current broadcast is synchronous); Perhaps the video data of video synchronization device acquisition can have a lead (this lead those skilled in the art can determine according to actual conditions) than the video data of broadcasting service distributing system broadcasting.
Video synchronization device will be transmitted to the streaming media service dissemination system by corresponding video data (being the synchronization video data) according to the relevant information of the current video of watching of the mobile phone users that carries in the video data request from the video data that broadcasting service distributing system obtains.
S505, streaming media service dissemination system are transmitted the partial data in the synchronization video data to portable terminal.
The streaming media service dissemination system is transmitted the partial data in the synchronization video data (such as the I frame data, perhaps other packets) to portable terminal.Like this, can suitably reduce mobile network's downlink load.
S506, portable terminal will mix with the video data that receives from radio network from the video data that the streaming media service dissemination system receives.
Because this moment, portable terminal was decayed to some extent from the signal strength signal intensity that radio network receives, the video data that receives from radio network has packet loss, therefore, the video data that receives from the streaming media service dissemination system can be replenished into and play after being mixed into from the video packets of data that radio network receives, thereby obtain preferable video playback effect.Concrete mixed method is such as can being when receiving the packet of some radio networks, sequence number or timestamp according to each packet, determine the packet that lacks, then will corresponding packet adds to wherein from the video packets of data that the mobile network receives after, carry out video playback.
S507, when portable terminal detects portable terminal and detects signal strength signal intensity that radio network sends less than threshold value B, send the second video data request to mobile network's streaming media service dissemination system, and stop from the radio network receiving video data.
S508, streaming media service dissemination system will be transmitted to portable terminal from all data the synchronization video data that video synchronization device obtains according to the second video data request that receives.
The video data that portable terminal is transmitted according to the streaming media service dissemination system carries out video playback.
S509, detect the signal strength signal intensity that radio network sends and recover, and when surpassing threshold value A, continue to play from the radio network receiving video data when portable terminal detects portable terminal, and being connected of interruption and streaming media service dissemination system; The streaming media service dissemination system then stops to obtain video data from video synchronization device.
A kind of concrete structure of the embodiment of the invention two described portable terminals comprises as shown in Figure 6: broadcast signal detection module 601, radio network video data receiver module 602, mobile network's video data receiver module 603, transmit control module 604, video playback module 605, broadcast cache module 606.
Wherein, broadcast signal detection module 601, radio network video data receiver module 602, transmit control module 604, video playback module 605, broadcast cache module 606, identical with the function of respective modules in the portable terminal of embodiment one, repeat no more herein.
603 differences to some extent of mobile network's video data receiver module: mobile network's video data receiver module 603 is when receiving first signal of broadcast signal detection module 601 outputs, streaming media service dissemination system to the mobile network sends the first video data request, and receives the video data that described streaming media service dissemination system returns; Mobile network's video data receiver module 603 is when receiving the secondary signal of broadcast signal detection module 601 outputs, streaming media service dissemination system to the mobile network sends the second video data request, and receives the video data that described streaming media service dissemination system returns; Mobile network's video data receiver module 603 interrupts and being connected of described streaming media service dissemination system when receiving described the 3rd signal.
The embodiment of the invention two is because portable terminal is provided with dual threshold, when portable terminal detects signal strength signal intensity that radio network sends less than first threshold, still continue from the radio network receiving video data, and connect mobile network's streaming media service dissemination system simultaneously, obtain video data from the streaming media service dissemination system; When portable terminal detected signal strength signal intensity that radio network sends less than second threshold value, portable terminal then stopped from the radio network receiving video data, and the video data that will obtain from mobile network's streaming media service dissemination system is play.Like this, just can avoid portable terminal to switch to break of video broadcast mobile network's process from radio network, the user can have preferable video-see impression.
Because when the signal strength signal intensity of radio network transmission during less than first threshold, greater than second threshold value, portable terminal will replenish from the video data that the mobile network receives, be mixed into and carry out video playback from the radio network receiving video data, thereby improve video playing quality.
Because the mobile network can be from the video data synchronized video data of video synchronization device acquisition with current broadcast, thereby portable terminal needn't send playing request etc. to mobile network's streaming media service dissemination system, and the streaming media service dissemination system also needn't be determined the corresponding video data that send again according to request, thereby shortened the time of streaming media service dissemination system response video data on mobile terminal request, made portable terminal can obtain video data as early as possible.
Because when the signal strength signal intensity of radio network transmission during less than first threshold, greater than second threshold value, portable terminal is not whole video datas from the video data that the mobile network receives, but partial video data (such as the I frame data), thereby minimizing mobile network's downlink load.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, this program can be stored in the computer read/write memory medium, as: ROM/RAM, magnetic disc, CD etc.
Will also be appreciated that the apparatus structure shown in accompanying drawing or the embodiment only is schematically, the presentation logic structure.Wherein the module that shows as separating component may or may not be physically to separate, and the parts that show as module may be or may not be physical modules.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (14)
1. a mobile terminal video player method is characterized in that, comprising:
Portable terminal receives the video data of radio network transmission and plays;
When described portable terminal detects signal strength signal intensity that radio network sends less than the first threshold of setting during greater than second threshold value set, streaming media service dissemination system to the mobile network sends the first video data request, the corresponding video data that receiving stream media distribution of services system returns; And continuation receives the video data that radio network sends;
When described portable terminal detects described signal strength signal intensity less than described second threshold value, stop from the radio network receiving video data, and play according to the video data that receives from described streaming media service dissemination system.
2. the method for claim 1 is characterized in that, is detecting described signal strength signal intensity less than described first threshold, also comprises:
The video data that described portable terminal will receive from described streaming media service dissemination system carries out video playback with after the video data from the radio network reception mixes.
3. method as claimed in claim 1 or 2 is characterized in that,, also comprises after described streaming media service dissemination system sends the first video data request at described portable terminal:
Described streaming media service dissemination system carries out authentication according to the described first video data request; After authentication was passed through, the video data of the video data synchronised that will send with described radio network returned to described portable terminal.
4. method as claimed in claim 1 or 2 is characterized in that,, also comprises after described streaming media service dissemination system sends the first video data request at described portable terminal:
Described streaming media service dissemination system carries out authentication according to the described first video data request; After authentication was passed through, the partial data in the video data of the video data synchronised that will send with described radio network returned to described portable terminal;
And described portable terminal detect described signal strength signal intensity less than described second threshold value after, described method also comprises:
Described portable terminal sends the second video data request to described streaming media service dissemination system; Described streaming media service dissemination system returns all data in the video data of the video data synchronised that sends with described radio network according to this second video data request to described portable terminal.
5. method as claimed in claim 1 or 2 is characterized in that,, also comprises after described streaming media service dissemination system sends the first video data request at described portable terminal:
Described streaming media service dissemination system carries out authentication according to the described first video data request; After authentication is passed through, send Authentication Response to described portable terminal;
Described portable terminal sends playing request to described streaming media service dissemination system after receiving Authentication Response;
Described streaming media service dissemination system returns corresponding video data according to this playing request to described portable terminal.
6. method as claimed in claim 1 or 2 is characterized in that, described portable terminal also comprises after playing according to the video data that receives from described streaming media service dissemination system:
When described portable terminal detects described signal strength signal intensity greater than the first threshold set, from the radio network receiving video data, and being connected of interruption and described streaming media service dissemination system.
7. a portable terminal is characterized in that, comprising:
Broadcast signal detection module, the signal strength signal intensity that is used to detect the radio network transmission is exported first signal less than second presentation time of the first threshold of setting greater than setting; When detecting described signal strength signal intensity less than described second threshold value, the output secondary signal;
Radio network video data receiver module is used to receive the video data that radio network sends, and when receiving described secondary signal, stops to receive the video data that radio network sends;
Mobile network's video data receiver module is used for when receiving described first signal, sends the first video data request to mobile network's streaming media service dissemination system, and receives the corresponding video data that described streaming media service dissemination system returns;
Transmit control module, be used for the video data that described radio network video data receiver module receives is cached to the broadcast cache module, and when receiving described secondary signal, the video data that described mobile network's video data receiver module is received is cached in the broadcast cache module;
The video playback module is used for carrying out video playback according to the video data of described broadcast cache module.
8. portable terminal as claimed in claim 7 is characterized in that,
Described broadcast signal detection module also is used for exporting the 3rd signal when detecting described signal strength signal intensity greater than first threshold; And
Described radio network video data receiver module also is used for according to described the 3rd signal from the radio network receiving video data; And
Described mobile network's video data receiver module also is used for being connected according to described the 3rd signal interruption and described streaming media service dissemination system; And
Described transmit control module also is used for when receiving described the 3rd signal, and the video data that described radio network video data receiver module is received is cached in the described broadcast cache module.
9. as claim 7 or 8 described portable terminals, it is characterized in that,
Described transmit control module also is used for when receiving described first signal, the video data that described radio network video data receiver module is received be cached in the described broadcast cache module after the video data of described mobile network's video data receiver module reception mixes.
10. as claim 7 or 8 described portable terminals, it is characterized in that,
Described mobile network's video data receiver module also is used for when receiving described secondary signal, sends the second video data request to mobile network's streaming media service dissemination system, and receives the video data that described streaming media service dissemination system returns.
11. a hybrid network system is characterized in that, comprising:
The broadcasting service distributing system of radio network is used for to the portable terminal broadcasting video data;
Mobile network's streaming media service dissemination system is used for when receiving the first video data request of described portable terminal transmission described portable terminal being carried out authentication; After authentication was passed through, partial data was transmitted to described portable terminal in the video data that described portable terminal is asked; When receiving the second video data request that described portable terminal sends, total data is transmitted to described portable terminal in the video data that described portable terminal is asked.
12. system as claimed in claim 11 is characterized in that, also comprises:
Video synchronization device is used for from the video data of described broadcasting service distributing system acquisition with the video data synchronised of described broadcasting service distributing system current broadcast; And
Described streaming media service dissemination system obtains the video data that described portable terminal is asked according to the described first video data request from described video synchronization device after authentication is passed through.
13. a video data transmitting method is characterized in that, comprising:
The broadcasting service distributing system of radio network is to the portable terminal broadcasting video data;
Mobile network's streaming media service dissemination system is when receiving the first video data request of described portable terminal transmission, described portable terminal is carried out authentication, after authentication was passed through, partial data was transmitted to described portable terminal in the video data that described portable terminal is asked; And
When receiving the second video data request that described portable terminal sends, total data is transmitted to described portable terminal in the video data that described portable terminal is asked.
14. method as claimed in claim 13 is characterized in that, after described streaming media service dissemination system passes through described portable terminal authentication, also comprises:
Described streaming media service dissemination system obtains the video data that described portable terminal is asked according to the described first video data request from video synchronization device; Described video synchronization device is from the video data of described broadcasting service distributing system acquisition with the video data synchronised of described broadcasting service distributing system current broadcast.
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| CN101931479A (en) * | 2010-08-05 | 2010-12-29 | 华为终端有限公司 | Method and device for playing audio signal |
| CN102780781A (en) * | 2011-11-07 | 2012-11-14 | 北京中广睛彩导航科技有限公司 | Information acquisition method and device for compensating for CMMB (china mobile multimedia broadcasting) signal blind area by using communication network |
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