CN101272205A - Transmission method and device of mobile multimedia broadcasting service parameter information - Google Patents
Transmission method and device of mobile multimedia broadcasting service parameter information Download PDFInfo
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Abstract
A transmission method for movable multimedia broadcast business parameter information comprises the steps: a front end seals the parameter information of a target business as a specific ESG business frame and seals the business mark a marking the ESG business frame, a timeslot number thereof, the business mark and a timeslot number thereof of a corresponding target business in a control frame; respectively modulates the control frame and the business frame on the control channel and the business channel of the network to transmit periodically. The terminal is tuned on the control channel to receive the unsealed business mark a and the timeslot number, switches to the corresponding timeslot receiving unsealing ESG data information, sets the parameters of a video/audio decoder according to the parameter information of the resolved target business; switches to the business data in each corresponding timeslot receiving unsealing business frame to play according to the business mark and the timeslot thereof of the resolved target business. The invention saves the system resources, enhances the flexibility and reliability of deployment and simultaneously reduces the requirement of a user terminal as well.
Description
Technical field
The present invention relates to the information transmission technology in the mobile multimedia broadcast system, relate in particular to the transmission method and the device of business parameters data in the mobile multimedia broadcast system.
Background technology
At Mobile Multimedia Broadcasting (such as China Mobile multimedia broadcasting CMMB, China MobileMultimedia Broadcasting) in the system, each mobile multi-media broadcasting service all has parameter information separately, terminal must be obtained the relevant parameter information of target service, could correctly decode to target service to represent.
Electron service instruction (ESG, Electronic Service Guide) be the navigation system of mobile multi-media broadcasting service, be mainly used to describe the relevant information of all multi-media broadcasting services that offer the user, be convenient to the terminal use and retrieve and visit multi-media broadcasting service apace.
Electron service instruction mainly is made up of following information or data:
(1) basic descriptor is used to describe the version and the ESG information transmitted of electron service instruction, just the data directory information of electronic program guides;
(2) ESG data message is used for as the key data of describing electron service instruction, promptly is used to the information of the business of describing, content and playing programs advance notice and Operational Visit parameter;
(3) program prompt information is used to predict current channel and is playing and be about to the programm name of broadcast and the information of duration.
The method of existing transmitting mobile multimedia broadcasting service parameter information generally is to adopt file mode, promptly in the ESG content, mode by reference is linked to the outside file of preserving business parameters data, obtains this document by exchange channels then, thereby parses relevant business parameters data.There are the following problems to adopt file mode transport service parameter information:
1) under broadcast mode, the deployment inconvenience of exchange channels, dumb;
2) to the having relatively high expectations of terminal, terminal need be supported interactive function.
Therefore, need replenish and improve the method for existing employing file mode transport service parameter information.
Summary of the invention
Technical problem to be solved by this invention provides a kind of transmission method and device of mobile multimedia broadcasting service parameter information, does not need by the file transfer parameter information of transmitting mobile multimedia broadcasting service quickly and easily just.
In order to solve the problems of the technologies described above, the invention provides a kind of transmission method of mobile multimedia broadcasting service parameter information, this method is carried described business parameters data by electron service instruction ESG and is transmitted, and comprises the following step of front-end process:
A, front end are with the relevant parameter information of the target service part as the ESG data message, by the data cell construction packages is specific ESG traffic frame, and will identify the service identification and the timeslot number thereof of the service identification a of specific ESG traffic frame and timeslot number thereof and corresponding target service, be encapsulated as the control information in the control frame;
Periodically emission on B, the control channel that respectively control frame, specific ESG traffic frame and other traffic frame is modulated at multimedia broadcasting network and the Traffic Channel.
Further, this method also comprises the following steps of terminal flow process behind step B:
C, terminal are tuned in the control information that receives on the control channel of multimedia broadcasting network in the deblocking control frame, find corresponding timeslot number according to the service identification a that therefrom parses, according to this timeslot number be tuned to corresponding time slot receive ESG data message in the specific ESG traffic frame of deblocking, according to the relevant parameter information of the target service that therefrom parses, the relevant parameter of Video Decoder and audio decoder is set;
D, find corresponding timeslot number according to the service identification of the target service that deblocking goes out from control information, according to timeslot number be tuned to corresponding time slot receive and the traffic frame of deblocking target service, resolve and obtain multimedia broadcast business data and play.
Further, the relevant parameter of target service comprises one or more video flowing parameters, audio stream parameter and the traffic parameter in the following parameter.
Further, the video flowing parameter contains one or more in the following parameter: video coding type, picture altitude, picture traverse, video frame frequency and the parameter set that is relevant to video coding;
The audio stream parameter contains one or more in the following parameter: audio coding type, audio sampling frequency, number of channels indication and the parameter that is relevant to audio coding;
Traffic parameter comprises the data stream encoding type at least.
Further, if target service is through encrypting, then the relevant parameter of target service also comprises encryption parameter, and this encryption parameter contains one or more in the following parameter: the length of addressed location index delta in non-first addressed location of the length of addressed location index and encrypted source load in first addressed location head of the length of addressed location size, encrypted source load in the encrypted source load addressed location head.
Further, this method is applied to China Mobile multimedia broadcasting CMMB business, and this control frame is 0 multiplexed frame, and this traffic frame is the multiplexed sub frame of non-0 multiplexed frame; The ESG data message is encapsulated in the data segment of the specific multiplexed sub frame of non-0 multiplexed frame in the steps A, constitutes this specific multiplexed sub frame with first of multiplexed sub frame; The basic descriptor of this ESG is encapsulated in the control information table in 0 multiplexed frame; Step C terminal receives the control information table in deblocking 0 multiplexed frame, switches to corresponding time slot according to service identification a and receives ESG data message in the specific multiplexed sub frame data segment of deblocking; Step D switches to according to the service identification of target service that corresponding time slot receives and the multiplexed sub frame of deblocking target service, and the data of video-frequency band, audio section and the data segment of the CMMB business that parsing is obtained are play.
In order to solve the problems of the technologies described above, the invention provides a kind of fore device that is used for the mobile multimedia broadcasting service parameter information transmission, comprise the electron service instruction ESG data server, encapsulation unit, modulating unit and the transmitter unit that connect successively, wherein:
The ESG data server is used for the relevant parameter information of target service is mixed with the part of ESG data message; And the service identification a that will identify the ESG data service is configured to the part of the basic descriptor of ESG;
Encapsulation unit, be used for the basic descriptor of described ESG and each service identification and time slot corresponding thereof number are encapsulated in the control information of control frame, and described ESG data message is encapsulated in the specific ESG traffic frame, this specific ESG traffic frame is determined by service identification a and timeslot number thereof;
Modulating unit is used for respectively control frame and traffic frame are modulated at the control channel and the Traffic Channel of mobile media broadcasting network;
Transmitter unit is used for the signal of modulation is transmitted in the air.
Further, the relevant parameter information of target service comprises one or more in the following parameter information: video flowing parameter, audio stream parameter and traffic parameter.
Further, through encrypting, then the relevant parameter of target service also comprises encryption parameter as if target service, wherein:
The video flowing parameter contains one or more in the following parameter: video coding type, picture altitude, picture traverse, video frame frequency and the parameter set that is relevant to video coding;
The audio stream parameter contains one or more in the following parameter: audio coding type, audio sampling frequency, number of channels indication and the parameter that is relevant to audio coding;
Traffic parameter comprises the data stream encoding type at least;
Encryption parameter contains one or more in the following parameter: the length of addressed location index delta in non-first addressed location of the length of addressed location index and encrypted source load in first addressed location head of the length of addressed location size, encrypted source load in the encrypted source load addressed location head.
In order to solve the problems of the technologies described above, the invention provides the corresponding terminal installation that is used for the mobile multimedia broadcasting service parameter information transmission of a kind of above-mentioned fore device, comprise the tuned cell, deblocking unit and the data playback unit that connect successively, wherein:
Tuned cell is used for being tuned on the control channel of mobile media broadcasting network and receives the control information of control frame, and is tuned in and receives traffic frame on the Traffic Channel;
The deblocking unit, be used in control information deblocking go out to identify the service identification a of ESG data service and timeslot number thereof and with the service identification and the timeslot number thereof of the corresponding described target service of service identification a; Deblocking from specific ESG traffic frame goes out the relevant parameter information of target service according to service identification a and timeslot number thereof; Simultaneously, video, the voice data that goes out mobile multi-media broadcasting service according to service identification and timeslot number deblocking from traffic frame thereof of corresponding target service;
The data playback unit is used for according to the relative parameters setting Video Decoder of target service and the relevant parameter of audio decoder, and plays corresponding multimedia broadcast business data.
Adopt method provided by the invention and device, owing to being carried in the ESG information, the parameter information with multi-media broadcasting service transmits, and needn't pass through the file transfer, thereby can conserve system resources, and can strengthen the flexibility of deployment under the broadcast mode and the reliability that service parameter obtains, simultaneously, also reduced the requirement of user terminal palpus support interactive function, thereby more help the improvement and the development of mobile multimedia broadcast system, so has very strong practical value in filed of mobile multimedia broadcasting.
Description of drawings
Fig. 1 is the flow chart of the related front end encapsulated delivery of method of the present invention, terminal to acquire service parameter information;
Fig. 2 a, Fig. 2 b are respectively video, the audio frequency parameter information structure diagram of multi-media broadcasting service of the present invention;
Fig. 3 is the structured flowchart of the related fore device embodiment of method of the present invention;
Fig. 4 is the structured flowchart of the related terminal installation embodiment of method of the present invention.
Embodiment
The transmission method of mobile multimedia broadcasting service parameter information provided by the invention and device, carrying multimedia broadcasting service parameter information by electron service instruction ESG transmits, comprise front-end process and terminal flow process, wherein: fore device is with the part of the needed business parameters data of terminal as all ESG contents, be packaged into satisfactory ESG content structure, also be about to the service identification a of ESG data service and timeslot number thereof and with corresponding service identification of each target service and timeslot number thereof, be encapsulated in the control information in the control frame; With relevant parameter (comprising video flowing parameter, audio stream parameter, traffic parameter, the encryption parameter) information of each target service a part, be specific ESG traffic frame by the data cell construction packages as the ESG data message; Respectively this control frame and this specific ESG traffic frame are modulated at the control channel and the transmission of the enterprising line period of Traffic Channel ground of network then.Terminal installation is tuned in the control information that receives on the control channel in the deblocking control frame, service identification a and timeslot number thereof according to the ESG data service that therefrom parses, be tuned to corresponding time slot receive ESG data message in the specific ESG traffic frame of deblocking down, therefrom parse the relevant parameter information of target service, and relevant parameter of video and audio decoder etc. is set in view of the above; Then according to the service identification and the timeslot number thereof of the target service that deblocking goes out from control information, be tuned to corresponding time slot receive and resolve the traffic frame of target service down, deblocking obtains multimedia broadcast business data and plays.
Below in conjunction with accompanying drawing, and be that embodiment elaborates technique scheme of the present invention specifically with the CMMB system.Certainly, be that example only is to explain the present invention for convenience at this with the CMMB system, but not be used to limit the present invention.Method of the present invention and device are applicable to any mobile multimedia broadcast system with control information and business information separated transmission.
As shown in Figure 1, be the transmission method flow chart of mobile multimedia broadcasting service parameter information provided by the invention, this flow process comprises that front end encapsulated delivery and terminal receive processing two parts, and its step is as follows:
Step 110: front end is encapsulated in the service identification a of ESG data service and the service identification and the timeslot number thereof of timeslot number and each target service thereof in the control information in the control frame;
At this, service identification and timeslot number thereof that service identification a can corresponding one or more target service.
Step 120: again with the relevant parameter information of target service a part as the ESG data message, by the data cell construction packages in specific ESG traffic frame;
Wherein, the relevant parameter of target service comprises one or more of following parameter: video flowing parameter, audio stream parameter, traffic parameter and encryption parameter.The video flowing parameter contains one or more in the following parameter again: the relevant parameter set of video coding type, picture altitude, picture traverse, video frame frequency and video coding.The audio stream parameter contains one or more in the following parameter again: the relevant parameter of audio coding type, audio sampling frequency, number of channels indication, audio coding.Traffic parameter comprises the data stream encoding type at least.Encryption parameter comprises some relevant parameters of addressed location in the encrypted source load, such as information such as length.
Step 130: respectively this control frame, this specific ESG traffic frame and other traffic frame are modulated at periodically emission on the control channel of multimedia broadcasting network and the Traffic Channel;
More than business parameters data is generated the ESG content and is packaged into the multiplexed frame form, at a certain time interval periodically the transmission; Like this, be convenient to terminal on the one hand and insert at random, be convenient to parameter immediate updating and reception on the other hand.
The above front end encapsulated delivery flow process of carrying out for fore device.With next is the step that the performed terminal of terminal installation receives handling process:
Step 140: terminal is tuned in the basic descriptor of ESG that receives on the control channel of multimedia broadcasting network in the control information of deblocking control frame, and deblocking is searched the service identification and the corresponding timeslot number thereof of the service identification a that wherein carries the ESG data and corresponding target service;
Step 150: judge whether to find above-mentioned service identification and corresponding timeslot number thereof, if execution in step 160, process ends then if not;
Step 160: find corresponding timeslot number according to service identification a, be tuned to this time slot receive down ESG data message in the specific ESG traffic frame of deblocking, parse the relevant parameter information of target service wherein, and relevant parameter of Video Decoder and audio decoder etc. is set in view of the above;
Step 170: the service identification according to target service finds corresponding timeslot number, be tuned to this time slot receive down the traffic frame of deblocking target service, resolve the video, the voice data that obtain multi-media broadcasting service and play.
Following mask body is embodiment with the CMMB system, and the method that the present invention is above-mentioned is described.
For example watch that service identification is 601 TV programme, the parameter information of this program obtains by following steps:
(1) front end generates the ESG data, and the data encapsulation that generates is become the multiplexed frame of CMMB system;
At first be the part of the relevant parameter information of 601 TV programme as the ESG data message with service identification, the data cell construction packages of pressing ESG is in the data segment of the multiplexed sub frame of specific non-0 multiplexed frame, constitute this specific multiplexed sub frame with first of multiplexed sub frame, transmit as special mobile multi-media broadcasting service; To identify the service identification 254 of above-mentioned specific multiplexed sub frame numbers 865 and timeslot number 135 thereof and service identification then and be 601 and timeslot number 288 be encapsulated in the control information table of 0 multiplexed frame;
(2) 0 multiplexed frame and non-0 multiplexed frame are modulated on control channel and the Traffic Channel transmit respectively;
(3) terminal is tuned on the control channel and receives and demultiplexing goes out the control information table of 0 multiplexed frame, therefrom resolves and obtains the service identification 254 of ESG data service and the service identification 601 and the timeslot number 288 thereof of target service; Find corresponding timeslot number 135 according to service identification 254, and to be tuned at timeslot number be that 135 time slot receives the ESG data message in No. 865 specific multiplexed sub frame data segment of demultiplexing down;
This ESG data message comprises: video flowing parameter and audio stream parameter, wherein, the video flowing parameter mainly comprises: video flowing numbering, video coding type, picture altitude and width, frame frequency, if video coding adopts the H264 coding, then also comprise the sequence parameter set SPS of H264 coding and the base64 representation of picture parameter set PPS code stream sequence, message structure is shown in Fig. 2 a; The audio stream parameter mainly comprises: configuration information is indicated, whether comprised to audio stream numbering, audio coding type, audio sampling frequency, number of channels in audio section, if audio coding adopts the AAC coding, then also comprise 16 system strings of AAC audio-frequency load byte stream, message structure is shown in Fig. 2 b.
If service identification is that 601 business is through encrypting, then the ESG data message also comprises encryption parameter, wherein contains the length of addressed location index delta (AU-Index-delta) in non-first addressed location of the length of addressed location index (AU-Index) in first addressed location head of length, encrypted source load of addressed location size (AU-size) in the encrypted source load addressed location head (AU-header) and encrypted source load.
(4) relevant parameter of Video Decoder and audio decoder is set according to top parameter information, find corresponding timeslot number 288 each multiplexed sub frame number according to service identification 601, and to be tuned at timeslot number be that 288 time slot receives each multiplexed sub frame of demultiplexing down, after therefrom taking out media data, carry out service identification and be the broadcast of 601 TV programme.
As shown in Figure 3, the structured flowchart of the fore device embodiment that a mobile multimedia broadcasting service parameter information that exemplifies for the present invention transmits, this fore device 300 comprises ESG data server 310, encapsulation unit 320, modulating unit 330 and the transmitter unit 340 that connects successively, wherein:
Transmitter unit 340 is used for the signal of modulation is transmitted in the air.
As shown in Figure 4, be the structured flowchart of the corresponding terminal installation embodiment of fore device of the present invention and above-mentioned, this terminal installation 400 comprises tuned cell 410, deblocking unit 420 and the data playback unit 430 that connects successively, wherein:
In sum, the present invention is carried in the ESG information by the parameter information with multi-media broadcasting service to be transmitted, and needn't pass through the file transfer, thereby both conserve system resources, the flexibility of deployment under the broadcast mode and the reliability that service parameter obtains have been strengthened, simultaneously, also reduced the requirement of user terminal palpus support interactive function, so help the further improvement and the development of mobile multimedia broadcast system.
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 (10)
1, a kind of transmission method of mobile multimedia broadcasting service parameter information is characterized in that, described method is carried described business parameters data by electron service instruction ESG and transmitted, and comprises the following step of front-end process:
A, front end are with the relevant parameter information of the target service part as the ESG data message, by the data cell construction packages is specific ESG traffic frame, and will identify the service identification and the timeslot number thereof of the service identification a of described specific ESG traffic frame and timeslot number thereof and corresponding described target service, be encapsulated as the control information in the control frame;
Periodically emission on B, the control channel that respectively described control frame, described specific ESG traffic frame and other traffic frame is modulated at multimedia broadcasting network and the Traffic Channel.
2, in accordance with the method for claim 1, it is characterized in that described method also comprises the following steps of terminal flow process behind step B:
C, terminal are tuned in the described control information that receives on the control channel of described multimedia broadcasting network in the described control frame of deblocking, find corresponding timeslot number according to the described service identification a that therefrom parses, according to described timeslot number be tuned to corresponding time slot receive described ESG data message in the described specific ESG traffic frame of deblocking, according to the described relevant parameter information of the described target service that therefrom parses, the relevant parameter of Video Decoder and audio decoder is set;
The described service identification of D, the basis described target service that deblocking goes out from described control information finds corresponding timeslot number, according to described timeslot number be tuned to corresponding time slot receive and the traffic frame of the described target service of deblocking, resolve and obtain multimedia broadcast business data and play.
According to claim 1 or 2 described methods, it is characterized in that 3, the relevant parameter of described target service comprises one or more video flowing parameters, audio stream parameter and the traffic parameter in the following parameter.
4, in accordance with the method for claim 3, it is characterized in that,
Described video flowing parameter contains one or more in the following parameter: video coding type, picture altitude, picture traverse, video frame frequency and the parameter set that is relevant to video coding;
Described audio stream parameter contains one or more in the following parameter: audio coding type, audio sampling frequency, number of channels indication and the parameter that is relevant to audio coding;
Described traffic parameter comprises the data stream encoding type at least.
5, according to claim 3 or 4 described methods, it is characterized in that, if described target service is through encrypting, then the relevant parameter of described target service also comprises encryption parameter, and described encryption parameter contains one or more in the following parameter: the length of addressed location index delta in non-first addressed location of the length of addressed location index and encrypted source load in first addressed location head of the length of addressed location size, encrypted source load in the encrypted source load addressed location head.
According to claim 1 or 2 described methods, it is characterized in that 6, described method is applied to China Mobile multimedia broadcasting CMMB business, described control frame is 0 multiplexed frame, and described traffic frame is the multiplexed sub frame of non-0 multiplexed frame; The described ESG data message of steps A is encapsulated in the data segment of the specific multiplexed sub frame of non-0 multiplexed frame, constitutes described specific multiplexed sub frame with first of multiplexed sub frame; The basic descriptor of described ESG is encapsulated in the control information table in described 0 multiplexed frame; The described terminal of step C receives the described control information table in described 0 multiplexed frame of deblocking, switches to corresponding time slot according to described service identification a and receives described ESG data message in the described specific multiplexed sub frame data segment of deblocking; Step D switches to according to the described service identification of described target service that corresponding time slot receives and the multiplexed sub frame of the described target service of deblocking, and the data of video-frequency band, audio section and the data segment of the described CMMB business that parsing is obtained are play.
7, a kind of fore device that is used for the mobile multimedia broadcasting service parameter information transmission is characterized in that, described device comprises electron service instruction ESG data server, encapsulation unit, modulating unit and the transmitter unit that connects successively, wherein:
Described ESG data server is used for the relevant parameter information of target service is mixed with the part of ESG data message; And the service identification a that will identify the ESG data service is configured to the part of the basic descriptor of ESG;
Described encapsulation unit, be used for the basic descriptor of described ESG and each service identification and time slot corresponding thereof number are encapsulated in the control information of control frame, and described ESG data message is encapsulated in the specific ESG traffic frame, described specific ESG traffic frame is determined by described service identification a and timeslot number thereof;
Described modulating unit is used for respectively described control frame and described traffic frame are modulated at the control channel and the Traffic Channel of mobile media broadcasting network;
Described transmitter unit is used for the signal of modulation is transmitted in the air.
According to the described device of claim 7, it is characterized in that 8, the relevant parameter information of described target service comprises one or more in the following parameter information: video flowing parameter, audio stream parameter and traffic parameter.
According to the described device of claim 8, it is characterized in that 9, through encrypting, then the relevant parameter of described target service also comprises encryption parameter as if described target service, wherein:
Described video flowing parameter contains one or more in the following parameter: video coding type, picture altitude, picture traverse, video frame frequency and the parameter set that is relevant to video coding;
Described audio stream parameter contains one or more in the following parameter: audio coding type, audio sampling frequency, number of channels indication and the parameter that is relevant to audio coding;
Described traffic parameter comprises the data stream encoding type at least;
Described encryption parameter contains one or more in the following parameter: the length of addressed location index delta in non-first addressed location of the length of addressed location index and encrypted source load in first addressed location head of the length of addressed location size, encrypted source load in the encrypted source load addressed location head.
10, the corresponding terminal installation that is used for the mobile multimedia broadcasting service parameter information transmission of a kind of and each described device of claim 7 to 9, it is characterized in that, described device comprises tuned cell, deblocking unit and the data playback unit that connects successively, wherein:
Described tuned cell is used for being tuned on the described control channel of described mobile media broadcasting network and receives the described control information of described control frame, and is tuned in and receives described traffic frame on the described Traffic Channel;
Described deblocking unit, be used in described control information deblocking go out the service identification a of described sign ESG data service and described timeslot number thereof and with the described service identification and the described timeslot number thereof of the corresponding described target service of service identification a; Go out the relevant parameter information of described target service according to described service identification a and described timeslot number thereof deblocking from described specific ESG traffic frame; Simultaneously, video, the voice data that goes out described mobile multi-media broadcasting service according to service identification and described timeslot number deblocking from described traffic frame thereof of corresponding described target service;
Described data playback unit is used for according to the relative parameters setting Video Decoder of described target service and the relevant parameter of audio decoder, and plays corresponding multimedia broadcast business data.
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| CN2008100969861A CN101272205B (en) | 2008-05-14 | 2008-05-14 | Transmission method and device of mobile multimedia broadcasting service parameter information |
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| CN2008100969861A CN101272205B (en) | 2008-05-14 | 2008-05-14 | Transmission method and device of mobile multimedia broadcasting service parameter information |
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| CN101404552B (en) * | 2008-11-07 | 2011-04-20 | 华为终端有限公司 | Control method, system and terminal for multimedia broadcasting service |
| CN102291683A (en) * | 2011-08-16 | 2011-12-21 | 中兴通讯股份有限公司 | Method, device and system for transmitting mobile multimedia broadcast electronic newspaper |
| WO2012094916A1 (en) * | 2011-01-11 | 2012-07-19 | 中兴通讯股份有限公司 | Method for encapsulating and transmitting streaming media packet, and device for processing streaming media |
| CN107257326A (en) * | 2010-04-20 | 2017-10-17 | 三星电子株式会社 | For transmitting interface arrangement and method with receiving media data |
| CN107357547A (en) * | 2017-06-15 | 2017-11-17 | 深圳市冠旭电子股份有限公司 | A kind of audio control method, audio control apparatus and audio frequency apparatus |
| CN110418415A (en) * | 2019-07-25 | 2019-11-05 | 哈尔滨海能达科技有限公司 | Shifting method, terminal, relay device and trunked communication system in trunked communication system signal |
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| WO2006059209A1 (en) * | 2004-12-02 | 2006-06-08 | Nokia Corporation | Enhanced electronic service guide container |
| CN101052159B (en) * | 2007-03-23 | 2010-05-26 | 中兴通讯股份有限公司 | Business switch method and device for mobile multimedia broadcast terminal |
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| CN101404552B (en) * | 2008-11-07 | 2011-04-20 | 华为终端有限公司 | Control method, system and terminal for multimedia broadcasting service |
| CN107257326A (en) * | 2010-04-20 | 2017-10-17 | 三星电子株式会社 | For transmitting interface arrangement and method with receiving media data |
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| WO2012094916A1 (en) * | 2011-01-11 | 2012-07-19 | 中兴通讯股份有限公司 | Method for encapsulating and transmitting streaming media packet, and device for processing streaming media |
| CN102291683A (en) * | 2011-08-16 | 2011-12-21 | 中兴通讯股份有限公司 | Method, device and system for transmitting mobile multimedia broadcast electronic newspaper |
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| CN107357547A (en) * | 2017-06-15 | 2017-11-17 | 深圳市冠旭电子股份有限公司 | A kind of audio control method, audio control apparatus and audio frequency apparatus |
| CN107357547B (en) * | 2017-06-15 | 2020-06-26 | 深圳市冠旭电子股份有限公司 | Audio control method, audio control device and audio equipment |
| CN110944228A (en) * | 2018-09-21 | 2020-03-31 | ***通信有限公司研究院 | Video stream protection method, device and storage medium |
| CN110418415A (en) * | 2019-07-25 | 2019-11-05 | 哈尔滨海能达科技有限公司 | Shifting method, terminal, relay device and trunked communication system in trunked communication system signal |
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| CN101272205B (en) | 2011-07-13 |
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