CN101102507B - Transmission method, device and system for mobile multimedia broadcast data - Google Patents
Transmission method, device and system for mobile multimedia broadcast data Download PDFInfo
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- CN101102507B CN101102507B CN2007101198490A CN200710119849A CN101102507B CN 101102507 B CN101102507 B CN 101102507B CN 2007101198490 A CN2007101198490 A CN 2007101198490A CN 200710119849 A CN200710119849 A CN 200710119849A CN 101102507 B CN101102507 B CN 101102507B
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Abstract
The method comprises: modifying the structure of multiplexing subframe; adding an segment-ending flag into the tail of each video segment, audio segment and data segment; said ending flag is used to make the tailing protection. The segment-ending flag can be designed to be a character string in a defined format; when the receiving end resolves the multiplexing subframe, it identifies the segment-ending mark of each video segment, audio segment and data segment based on the defined format of the character string so as to improve the accuracy rate of indentifying each video segment, audio segment and data segment.
Description
Technical field
The present invention relates to mobile communication technology, particularly a kind of transmission technology of mobile multi-media broadcasting data.
Background technology
In China Mobile's multimedia front end system of present announced GY/T 220.2-2006 standard code, multiplexing function is to finish information encapsulation and arrangements such as audio frequency, video, data, electron service instruction, the broadcast channel frame that generation can transmit on mobile multimedia broadcasting channel, a broadcast channel frame is made of a plurality of multiplexed frames, and a multiplexed frame is made up of multiplex frame head, multiplexed frame payload and filling; The multiplexed frame payload is made up of one or more multiplexed sub frames, and the multiplexed frame payload can comprise 15 multiplexed sub frames at most.
As shown in Figure 1, the audio frequency of same business substantially stream, video-frequency basic flow and data flow encoded after, in multiplexed sub frame, supplementarys such as electron service instruction, user management are encapsulated in respectively in the different multiplexed sub frames by segment encapsulation, and the multiplexed sub frame control information is encapsulated in the special-purpose multiplexed frame.
GY/T 220.2-2006 standard code the multiplexed frame of video, audio frequency, data and control information in China Mobile's multimedia system and the form of multiplexed sub frame.Wherein, the multiplexed sub frame structure is made up of subframe head, video-frequency band, audio section and data segment shown in Fig. 2 a.Wherein the field of carrying in the subframe head comprises:
Subframe head length degree accounts for 8 bit fields, is used to indicate the total length of this subframe head;
Initial reproduction time indication accounts for 1 bit field, is used for indicating the subframe head whether initial reproduction time parameter is arranged;
Video-frequency band indication, audio section indication and data segment indication, account for 1 bit field respectively, be respectively applied for whether correspondence has been carried video-frequency band, audio section and data segment in the indication multiplexed sub frame, and whether corresponding video-frequency band length and video flowing sum parameter, audio section length and audio stream sum parameter, data segment, length and data flow sum parameter are arranged in the subframe head;
The expansion area indication accounts for 1 bit field, is used for indicating the subframe head whether the expansion area is arranged;
Video-frequency band length, audio section length and data segment, length are respectively applied for the length of video-frequency band, audio section and data segment that indication may comprise.
In addition, the subframe head also comprises reserved area and some other field of 3 bit fields.
Here, may comprise in video-frequency band, audio section and the data segment 1,2 or all in multiplexed sub frame.
The structure of each video-frequency band, audio section or data segment comprises shown in Fig. 2 b in the multiplexed sub frame:
A paragraph header and n load unit, wherein: the load unit of video-frequency band is called the video load unit, and the load unit of audio section is called the audio-frequency load unit, and the load unit of data segment is called the data payload unit;
Comprise in the paragraph header:
Paragraph header length accounts for the field of 12 bits, is used to indicate the total length of paragraph header;
Reserved field;
The parameter of n load unit is used to indicate the relevant parameter of corresponding load unit;
Cyclic redundancy check information is used for the decoded data of paragraph header is carried out verification.
After broadcast channel frame is transferred to receiving terminal, receiving terminal therefrom parses multiplexed frame, from each multiplexed frame, parse multiplexed sub frame, go out video-frequency band, audio section and the data segment that wherein may comprise according to the relevant field information analysis in the subframe head again, wherein, the length of each video-frequency band, audio section and the data segment wherein may comprise be need determine according to the video-frequency band length in the subframe head, audio section length and data segment, length, and concrete video-frequency band, audio section and data segment identified according to the length of each section.
Because it is all multifactor that the abominable and user of wireless propagation environment is in mobile status etc., can cause the loss of radio transmission, multimedia messages is responsive especially to mistake after overcompression, thus through the multimedia messages after the overcompression when wireless channel is propagated, mistake very easily appears.The error code of transmission and packet loss can directly influence the identification of receiving terminal to video-frequency band, audio section and data segment.
Shown in Fig. 2 a, even no problem in the transmission course,, then directly influence the identification of subsequent sound frequency range and data segment if mistake occurs during receiving terminal identification video section, at this moment need whole multiplexed sub frame is all abandoned.And if the subframe head goes wrong in transmission course, receiving terminal can't be known video-frequency band length, audio section length and the data segment, length in this multiplexed sub frame, still need abandon whole multiplexed sub frame.
Abandoning of whole multiplexed sub frame, reduced the efficiency of transmission of multimedia broadcast data, strengthened the error rate (SDU Error Ratio) of mobile multi-media broadcasting service data cell, weakened the fault tolerance and the error detection function of mobile multi-media service, the rating that has influenced the receiving terminal user is experienced.
Consult shown in Fig. 2 b, also there is similar problem when from each video-frequency band, audio section or data segment, parsing load unit wherein, if mistake appears in one of them load unit, need abandon whole video section, audio section or the data segment at this load unit place, thereby reduced the efficiency of transmission of multimedia broadcast data, strengthened the error rate (SDU Error Ratio) of mobile multi-media broadcasting service data cell, weakened the fault tolerance and the error detection function of mobile multi-media service, the rating that has influenced the receiving terminal user is experienced.
Summary of the invention
The invention provides a kind of transmission method, sending method, method of reseptance and relevant apparatus and system of mobile multi-media broadcasting data, to improve the efficiency of transmission of mobile multi-media broadcasting data.
The transmission method of a kind of mobile multi-media broadcasting data provided by the invention comprises:
Generate and send broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, and the section that the section tail of each section comprises this section finishes sign;
Receive described broadcast channel frame, from described broadcast channel frame, parse each multiplexed frame, parse each multiplexed sub frame from each multiplexed frame, parse the video-frequency band, audio section or the data segment that comprise from each multiplexed sub frame, the section tail of each section finishes to identify definite by the section of this section.
Further, described multiplexed sub frame also comprises the subframe head, comprises described section indication information that finishes sign in the described subframe head, and described indication information is used in reference to give instructions in reply and finishes sign with the section of comprising in each video-frequency band, audio section or the data segment in the subframe.
The sending method of a kind of mobile multi-media broadcasting data provided by the invention comprises:
Generate broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, and described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, and the section that the section tail of each section comprises this section finishes sign;
Send described broadcast channel frame.
The method of reseptance of a kind of mobile multi-media broadcasting data provided by the invention comprises:
Receive broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, and described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, and the section that the section tail of each section comprises this section finishes sign;
From described broadcast channel frame, parse each multiplexed frame, from each multiplexed frame, parse each multiplexed sub frame, parse video-frequency band, audio section or data segment in the described multimedia broadcast data from each multiplexed sub frame, the section tail of each section finishes to identify definite by the section of this section.
The transmission system of a kind of mobile multi-media broadcasting data provided by the invention comprises:
First dispensing device, be used to generate and send broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, and the section that the section tail of each section comprises this section finishes sign;
First receiving device, be used to receive described broadcast channel frame, from described broadcast channel frame, parse each multiplexed frame, from each multiplexed frame, parse each multiplexed sub frame, parse the video-frequency band, audio section or the data segment that comprise from each multiplexed sub frame, the section tail of each section finishes to identify definite by the section of this section.
The dispensing device of a kind of mobile multi-media broadcasting data provided by the invention comprises:
The first broadcast channel frame generation unit, be used to generate broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, and the section that the section tail of each section comprises this section finishes sign;
The first broadcast channel frame transmitting element is used to send described broadcast channel frame.
The receiving system of a kind of mobile multi-media broadcasting data provided by the invention comprises:
The first broadcast channel frame receiving element, be used to receive broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, and the section that the section tail of each section comprises this section finishes sign;
The first broadcast channel frame resolution unit, be used for parsing each multiplexed frame from described broadcast channel frame, from each multiplexed frame, parse each multiplexed sub frame, parse video-frequency band, audio section or data segment in the described multimedia broadcast data from each multiplexed sub frame, the section tail of each section finishes to identify definite by the section of this section.
Based on same technical conceive, the present invention also provides a kind of transmission method of mobile multi-media broadcasting data, comprising:
Generate and send broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, the section that the section tail of described video-frequency band, audio section or data segment comprises this section finishes sign, comprise at least one load unit in each section, the unit that the afterbody of each load unit comprises this unit finishes sign;
Receive described broadcast channel frame, from described broadcast channel frame, parse each multiplexed frame, from each multiplexed frame, parse each multiplexed sub frame, from each multiplexed sub frame, parse the video-frequency band, audio section or the data segment that comprise, the section tail of each section finishes to identify definite by the section of this section, parse each load unit from each section, the afterbody of each load unit finishes to identify definite by the unit of this unit.
Further, described video-frequency band, audio section or data segment also comprise paragraph header, comprise the unit in the described paragraph header and finish the sign indication information, and described unit finishes the sign indication information and is used for indicating each video-frequency band, audio section or data segment to comprise unit end sign.
Further, described multiplexed sub frame also comprises the subframe head, and the section of comprising finishes the sign indication information in the described subframe head, and described section end sign indication information is used in reference to give instructions in reply and finishes sign with the section of comprising in each video-frequency band, audio section or the data segment in the subframe.
The sending method of a kind of mobile multi-media broadcasting data provided by the invention comprises:
Generate broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, the section that the section tail of described video-frequency band, audio section or data segment comprises this section finishes sign, comprise at least one load unit in each section, the unit that the afterbody of each load unit comprises this unit finishes sign; Send described broadcast channel frame.
Further, described multiplexed sub frame also comprises the subframe head, and the section of comprising finishes the sign indication information in the described subframe head, and described section end sign indication information is used in reference to give instructions in reply and finishes sign with the section of comprising in each video-frequency band, audio section or the data segment in the subframe.
A kind of method of reseptance of mobile multi-media broadcasting data comprises:
Receive broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, the section that the section tail of described video-frequency band, audio section or data segment also comprises this section finishes sign, comprise at least one load unit in each section, the unit that the afterbody of each load unit comprises this unit finishes sign;
From described broadcast channel frame, parse each multiplexed frame, from each multiplexed frame, parse each multiplexed sub frame, from each multiplexed sub frame, parse the video-frequency band, audio section or the data segment that comprise, the section tail of each section finishes to identify definite by the section of this section, parse each load unit from each section, the afterbody of each load unit finishes to identify definite by the unit of this unit.
Further, described multiplexed sub frame also comprises the subframe head, the section of comprising finishes the sign indication information in the described subframe head, and, described method of reseptance also comprises: parse video-frequency band, audio section or the data segment that comprises from each multiplexed sub frame before, the section of discerning in the described subframe head finishes the sign indication information, and finishes the sign indication information according to described section and confirm that the section tail section of comprising of each section finishes sign.
A kind of transmission system of mobile multi-media broadcasting data comprises:
Second dispensing device, be used to generate and send broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, the section tail section of comprising of described video-frequency band, audio section or data segment finishes sign, comprises at least one load unit in each section, and the unit that the afterbody of each load unit comprises this unit finishes sign;
Second receiving system, be used to receive described broadcast channel frame, from described broadcast channel frame, parse each multiplexed frame, from each multiplexed frame, parse each multiplexed sub frame, from each multiplexed sub frame, parse the video-frequency band, audio section or the data segment that comprise, the section root of the tail of each video-frequency band, audio section or data segment finishes sign according to the section of this section to be determined, parses each load unit from each section, and the afterbody of each load unit finishes sign by the unit of this unit and determines.
Further, described second dispensing device also in the subframe head of multiplexed sub frame the section of setting finish the sign indication information;
Described second receiving system is also discerned the section that comprises in the subframe head of each multiplexed sub frame and is finished the sign indication information, and finishes the sign indication information according to described section and confirm that the section tail of each section comprises described section and finishes sign.
A kind of dispensing device of mobile multi-media broadcasting data comprises:
The second broadcast channel frame generation unit, be used to generate broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, the section tail section of comprising of described video-frequency band, audio section or data segment finishes sign, comprises at least one load unit in each section, and the unit that the afterbody of each load unit comprises this unit finishes sign;
The second broadcast channel frame transmitting element is used to send described broadcast channel frame.
Further, the described second broadcast channel frame generation unit also finishes sign in the section tail section of setting of video-frequency band, audio section or data segment.
A kind of receiving system of mobile multi-media broadcasting data comprises:
The second broadcast channel frame receiving element, be used to receive broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, the section tail section of comprising of described video-frequency band, audio section or data segment finishes sign, comprises at least one load unit in each section, and the unit that the afterbody of each load unit comprises this unit finishes sign;
The second broadcast channel frame resolution unit, from described broadcast channel frame, parse each multiplexed frame, from each multiplexed frame, parse each multiplexed sub frame, from each multiplexed sub frame, parse the video-frequency band, audio section or the data segment that comprise, the section root of the tail of each video-frequency band, audio section or data segment finishes to identify definite according to the section of this section, parse each load unit from each section, the afterbody of each load unit finishes to identify definite by the unit of this unit.
Further, in the subframe head of described multiplexed sub frame also the section of comprising finish the sign indication information; And the described second broadcast channel frame resolution unit also discerns the section that comprises in the subframe head of each multiplexed sub frame and finishes the sign indication information, and finishes the sign indication information according to described section and confirm that the section tail of each section comprises described section and finishes sign.
Technical scheme provided by the invention is improved the structure of multiplexed sub frame, adds section and finish sign behind each video-frequency band, audio section and the data segment of multiplexed sub frame, is used for each section protection of trailing.Section finishes the character string that sign can be designed to prescribed form, make receiving terminal in the process of resolving multiplexed sub frame, discern each video-frequency band according to the prescribed form of character string, the section of audio section and data segment finishes sign, thereby determine each video-frequency band, the section tail of audio section and data segment, no matter because the abominable and user of wireless propagation environment is in the loss of all multifactor radio transmissions that cause such as mobile status, make the video-frequency band that receives, the length of indicating in audio section and data segment physical length and the subframe head is inconsistent, still since the identification error of subframe header cause obtaining can't know video-frequency band length in this multiplexed sub frame, audio section length and data segment, length, receiving terminal can finish sign by section each section demarcated, distinguish each section video-frequency band, audio section and data segment, wrong video-frequency band appears thereby only abandon, audio section or data segment, rather than abandon whole multiplexed sub frame, therefore improved each video-frequency band of correct identification, the accuracy of audio section and data segment, reach the efficiency of transmission that improves multimedia broadcast data, reduce the error rate of mobile multi-media broadcasting service data cell, strengthen the fault tolerance and the error detection function of mobile multi-media service, improve the beneficial effect of receiving terminal user's rating experience.
Technical scheme provided by the invention is improved the load unit structure in video-frequency band, audio section or the data segment, finishes sign at each load unit afterbody adding device, is used for the protection of trailing of each load unit.And the unit finishes the character string that sign can be designed to prescribed form, make receiving terminal resolve each video-frequency band, in the process of audio section and data segment, the unit of discerning each load unit according to the prescribed form of character string finishes sign, thereby determine the section tail of each load unit, no matter because the abominable and user of wireless propagation environment is in the loss of all multifactor radio transmissions that cause such as mobile status, make the length of indicating in each the load unit physical length that receives and the paragraph header inconsistent, still since the identification error of paragraph header information cause obtaining can't know each load unit length, receiving terminal can finish sign by the unit each load unit is demarcated, distinguish each load unit, wrong load unit appears thereby only abandon, rather than abandon the whole video section, audio section and data segment, therefore improved each video-frequency band of correct identification, the accuracy of audio section and data segment, reach the efficiency of transmission that has improved multimedia broadcast data, reduce the error rate of mobile multi-media broadcasting service data cell, strengthen the fault tolerance and the error detection function of mobile multi-media service, improve the effect of receiving terminal user's rating experience.
Description of drawings
Fig. 1 is the front end system result schematic diagram of existing mobile multi-media broadcasting service;
Fig. 2 a is the structural representation of existing multiplexed sub frame;
Fig. 2 b is the structural representation of existing video-frequency band, audio section or data segment;
Fig. 3, Fig. 4 are respectively the multiplexed sub frame structural representation that the embodiment of the invention provides;
The transmitting terminal handling process schematic diagram of the mobile multi-media broadcasting data transmission method that Fig. 5 provides for the embodiment of the invention;
The receiving terminal handling process schematic diagram of the mobile multi-media broadcasting data transmission method that Fig. 6 provides for the embodiment of the invention;
The mobile multi-media broadcasting data transmission system primary structure schematic diagram that Fig. 7 provides for the embodiment of the invention;
The primary structure schematic diagram of a kind of dispensing device that Fig. 8 provides for the embodiment of the invention;
The primary structure schematic diagram of a kind of receiving system that Fig. 9 provides for the embodiment of the invention;
The load unit structural representation that Figure 10 provides for the embodiment of the invention;
The another kind of mobile multi-media broadcasting data transmission system primary structure schematic diagram that Figure 11 provides for the embodiment of the invention;
The primary structure schematic diagram of the another kind of dispensing device that Figure 12 provides for the embodiment of the invention;
The primary structure schematic diagram of the another kind of receiving system that Figure 13 provides for the embodiment of the invention.
Embodiment
As shown in Figure 3; the embodiment of the invention is in order to improve the efficiency of transmission of multimedia broadcast data; structure to multiplexed sub frame is improved, and adds section and finish sign behind each video-frequency band, audio section and the data segment of multiplexed sub frame, be used for to each section trail (trailer) protect.Section finishes the character string that sign can be designed to prescribed form, receiving terminal is in the process of resolving multiplexed sub frame, the section of discerning each video-frequency band, audio section and data segment according to the prescribed form of character string finishes sign, thereby determine the section tail of each video-frequency band, audio section and data segment, improve the accuracy of each video-frequency band of correct identification, audio section and data segment, thereby improved the efficiency of transmission of multimedia broadcast data.
Form or length that the section of each video-frequency band, audio section and data segment finishes sign can be the same or different, for example shown in Figure 3, the section that the section that the section of video-frequency band finishes to be designated M byte, audio section finishes to be designated P byte, audio section finishes to be designated the Q byte, and wherein M, P, Q are integer.The length that section finishes sign is no less than a byte, is example with 4 bytes, and section finishes sign and for example can select: FE 00 FE00,00 FF AA FF, FF 81 00 7E or FF 7E 81 FF etc.
As shown in Figure 4, further, a bit definitions section of being in the subframe reserved field can also be finished the sign indication, whether the section of having finishes sign to be used in reference to the section tail of giving instructions in reply with each video-frequency band, audio section and data segment in the subframe, whether network side can be according to the ability of receiving terminal like this, select section tail at each video-frequency band, audio section and data segment to increase section flexibly and finish sign.For example: when receiving terminal is resolved at the antithetical phrase frame head, be designated as 0 if section finishes sign, the expression not section of adding finishes sign; Be designated as 1 if instead section finishes sign, be illustrated in each video-frequency band, audio section and data segment back interpolation section and finish sign.
Below with specific embodiment and in conjunction with the accompanying drawings, describe in detail according to the transmitting mobile multimedia broadcast data how of the multiplexed sub frame after improving, to realize mobile multi-media broadcasting service.
In the transmission method of a kind of mobile multi-media broadcasting data that the embodiment of the invention provides, the handling process when mobile multimedia broadcasting service system sends mobile multi-media broadcasting data comprises the steps: as shown in Figure 5
Step S501, generation broadcast channel frame;
Broadcast channel frame comprises at least one multiplexed frame, multiplexed frame comprises at least one multiplexed sub frame, according to improved multiplexed sub frame structure in the embodiment of the invention, multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, the section of being provided with finishes the sign indication in the frame head of multiplexed sub frame, and the section that the section tail of each section comprises this section finishes sign;
According to each video flowing, audio stream or the data of current transmission, multiplexed sub frame may comprise 1,2 or 3 in video-frequency band, audio section or the data segment, identifies by the video-frequency band in the subframe head, audio section or data segment indication.
Consult shown in Figure 1ly, this step S501 is finished by the multiplexing functional entity in the front end system of mobile multi-media broadcasting service.
Step S502, on broadcast channel, send broadcast channel frame.
Consult shown in Figure 1ly, this step S502 is finished by the Channel Processing functional entity in the front end system of mobile multi-media broadcasting service.
Receiving terminal receives mobile multi-media broadcasting data, comprise at least one multiplexed frame in each broadcast channel frame that receiving terminal receives, each multiplexed frame comprises at least one multiplexed sub frame, multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, the section of being provided with finishes the sign indication in the frame head of multiplexed sub frame, and the section that the section tail of each section comprises this section finishes sign; Receiving terminal comprises the steps: to the handling process of each broadcast channel frame as shown in Figure 6
Step S601, from broadcast channel frame, parse each multiplexed frame;
Step S602, from each multiplexed frame, parse each multiplexed sub frame;
Step S603, discern the section that the subframe head of each multiplexed sub frame is provided with and finish the sign indication;
Step S604, parse video-frequency band, audio section or data segment in the multimedia broadcast data from each multiplexed sub frame, the section tail of each section finishes sign by the section of this section and determines.
Receiving terminal can determine whether to comprise video-frequency band, audio section or data segment according to the video-frequency band in the subframe head, audio section or data segment indication, and the video-frequency band, audio section or the data segment that identify are recombinated.
Whether receiving terminal can also correct according to each video-frequency band, audio section or the data segment, length that the video-frequency band in the subframe head, audio section or data segment, length indicate further verification to resolve.
Each self-corresponding section concrete form that finishes sign of video-frequency band, audio section or data segment can be pre-configured, also can consult by both party to determine that the embodiment of the invention does not limit specific implementation in setting up business procedure.
As shown in Figure 7, the transmission system structural representation of a kind of mobile multi-media broadcasting data that provides for the embodiment of the invention comprises:
First dispensing device 701, be used to generate broadcast channel frame and send broadcast channel frame to first receiving device 702, broadcast channel frame comprises at least one multiplexed frame, multiplexed frame comprises at least one multiplexed sub frame, multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, the section of setting finishes the sign indication information in the subframe head of each multiplexed sub frame, and the section that the section tail of each section comprises this section finishes sign;
This first dispensing device 701 is arranged in the front end system of mobile multi-media broadcasting service, forms the multiplexing functional entity and the Channel Processing functional entity of the front end system of mobile multi-media broadcasting service.
First receiving device 702, be used for receiving broadcast channel frame from first dispensing device 701, from broadcast channel frame, parse each multiplexed frame, from each multiplexed frame, parse each multiplexed sub frame, discern the section that comprises in the subframe head of each multiplexed sub frame and finish the sign indication information, and finish the sign indication information according to section and confirm that the section tail section of comprising of each section finishes sign, parse the video-frequency band, audio section or the data segment that comprise from each multiplexed sub frame, the section tail of each section finishes to identify definite by the section of this section.
First receiving device 702 is generally hand-held terminal device, for example can receive the mobile phone of mobile multi-media broadcasting service etc.Connect by mobile communications network between the first receiving device 702 and first dispensing device 701, realize the transmission of mobile multi-media broadcasting data by broadcast channel.
Further as shown in Figure 8, a kind of concrete structure of first dispensing device 701 comprises:
The first broadcast channel frame generation unit 801, be used to generate broadcast channel frame, broadcast channel frame comprises at least one multiplexed frame, multiplexed frame comprises at least one multiplexed sub frame, multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, the section of setting finishes the sign indication information in the subframe head of each multiplexed sub frame, and the section that the section tail of each section comprises this section finishes sign; And
The first broadcast channel frame transmitting element 802 is used for sending the broadcast channel frame that the first broadcast channel frame generation unit 801 generates to first receiving device 702.
Further as shown in Figure 9, a kind of concrete structure of first receiving device 702 comprises:
The first broadcast channel frame receiving element 901, be used for receiving broadcast channel frame from first dispensing device 701, broadcast channel frame comprises at least one multiplexed frame, multiplexed frame comprises at least one multiplexed sub frame, multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, and the section that the section tail of each section comprises this section finishes sign;
The first broadcast channel frame resolution unit 902, be used for parsing each multiplexed frame from the broadcast channel frame that the first broadcast channel frame receiving element 901 receives, from each multiplexed frame, parse each multiplexed sub frame, discern the section that comprises in the subframe head of each multiplexed sub frame and finish the sign indication information, and finish the sign indication information according to section and confirm that the section of comprising finishes sign in each section, parse video-frequency band, audio section or data segment in the multimedia broadcast data from each multiplexed sub frame, the section tail of each section finishes to identify definite by the section of this section.
Decoding in video-frequency band, audio section or data segment and progressive reorganization respectively back, obtains the data of mobile multi-media broadcasting service.
Need to prove, it is that example describes that the foregoing description finishes to identify an indication information with sign of the section of comprising end simultaneously and section in the multiplexed sub frame, whether can decide through consultation in the process specifically that each section section tail section of setting finishes sign in multiplexed sub frame if both sides set up in business, then section finishes the sign indication information not necessarily.
The technical scheme that the embodiment of the invention provides is improved the structure of multiplexed sub frame, adds section and finish sign behind each video-frequency band, audio section and the data segment of multiplexed sub frame, is used for each section protection (trailer) of trailing.And section finishes the character string that sign can be designed to prescribed form, make receiving terminal in the process of resolving multiplexed sub frame, discern each video-frequency band according to the prescribed form of character string, the section of audio section and data segment finishes sign, thereby determine each video-frequency band, the section tail of audio section and data segment, no matter because the abominable and user of wireless propagation environment is in the loss of all multifactor radio transmissions that cause such as mobile status, make the video-frequency band that receives, the length of indicating in audio section and data segment physical length and the subframe head is inconsistent, still since the identification error of subframe header cause obtaining can't know video-frequency band length in this multiplexed sub frame, audio section length and data segment, length, receiving terminal can finish sign by section each section demarcated, distinguish each section video-frequency band, audio section and data segment, wrong video-frequency band appears thereby only abandon, audio section or data segment, rather than abandon whole multiplexed sub frame, therefore improved each video-frequency band of correct identification, the accuracy of audio section and data segment, reach the efficiency of transmission that has improved multimedia broadcast data, reduce the error rate of mobile multi-media broadcasting service data cell, strengthen the fault tolerance and the error detection function of mobile multi-media service, improve the effect of receiving terminal user's rating experience.
As shown in figure 10, based on same technical conceive, the embodiment of the invention is also improved the load unit structure in video-frequency band, audio section or the data segment, afterbody at each load unit is provided with unit end sign, the transmission method of corresponding mobile multimedia broadcast data comprises referring to shown in Figure 5:
Generate and send broadcast channel frame, broadcast channel frame comprises at least one multiplexed frame, multiplexed frame comprises at least one multiplexed sub frame, multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, comprise at least one load unit in each section, the unit that the afterbody of each load unit comprises this unit finishes sign;
Receive broadcast channel frame, from broadcast channel frame, parse each multiplexed frame, from each multiplexed frame, parse each multiplexed sub frame, from each multiplexed sub frame, parse the video-frequency band, audio section or the data segment that comprise, parse each load unit from each section, the afterbody of each load unit finishes to identify definite by the unit of this unit.
Still referring to shown in Figure 10, further in the paragraph header of each section, utilize in the paragraph header 1 to keep the position and the unit is set finishes the sign indication information, the unit finishes the sign indication information and is used for indicating each video-frequency band, audio section or data segment to comprise the unit finishing sign.Receiving terminal is before parsing the load unit that comprises from each video-frequency band, audio section or data segment, unit in the identification paragraph header finishes the sign indication information, and finishes the sign indication information according to the unit and confirm that the afterbody of load unit comprises the unit and finishes sign.
As shown in figure 11, the transmission system of the another kind of mobile multi-media broadcasting data that the embodiment of the invention provides comprises:
Further, second dispensing device 1101 also is provided with the unit and finishes the sign indication information in the paragraph header of each video-frequency band, audio section or data segment, unit end sign indication information is used in reference to the afterbody of giving instructions in reply with each load unit in the subframe and comprises unit end sign;
As shown in figure 12, a kind of concrete structure of second dispensing device 1101 comprises:
The second broadcast channel frame generation unit 1201, be used to generate broadcast channel frame, broadcast channel frame comprises at least one multiplexed frame, multiplexed frame comprises at least one multiplexed sub frame, multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, comprise at least one load unit in each section, the unit that the afterbody of each load unit comprises this unit finishes sign;
The second broadcast channel frame transmitting element 1202 is used to send broadcast channel frame.
As shown in figure 13, a kind of concrete structure of receiving system 1102 comprises:
The second broadcast channel frame receiving element 1301, be used to receive broadcast channel frame, broadcast channel frame comprises at least one multiplexed frame, multiplexed frame comprises at least one multiplexed sub frame, multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, comprise at least one load unit in each section, the unit that the afterbody of each load unit comprises this unit finishes sign;
The second broadcast channel frame resolution unit 1302, from broadcast channel frame, parse each multiplexed frame, from each multiplexed frame, parse each multiplexed sub frame, from each multiplexed sub frame, parse the video-frequency band, audio section or the data segment that comprise, parse each load unit from each section, the afterbody of each load unit finishes to identify definite by the unit of this unit.
The embodiment of the invention is improved the load unit structure in video-frequency band, audio section or the data segment, finishes sign at each load unit afterbody adding device, is used for the protection (trailer) of trailing of each load unit.And the unit finishes the character string that sign can be designed to prescribed form, make receiving terminal resolve each video-frequency band, in the process of audio section and data segment, the unit of discerning each load unit according to the prescribed form of character string finishes sign, thereby determine the section tail of each load unit, no matter because the abominable and user of wireless propagation environment is in the loss of all multifactor radio transmissions that cause such as mobile status, make the length of indicating in each the load unit physical length that receives and the paragraph header inconsistent, still since the identification error of paragraph header information cause obtaining can't know each load unit length, receiving terminal can finish sign by the unit each load unit is demarcated, distinguish each load unit, wrong load unit appears thereby only abandon, rather than abandon the whole video section, audio section and data segment, therefore improved each video-frequency band of correct identification, the accuracy of audio section and data segment, reach the efficiency of transmission that has improved multimedia broadcast data, reduce the error rate of mobile multi-media broadcasting service data cell, strengthen the fault tolerance and the error detection function of mobile multi-media service, improve the effect of receiving terminal user's rating experience.
Need to prove, technical solution of the present invention relates to two improvement of doing according to same technical conceive, the first is at each video-frequency band in the multiplexed sub frame, the improvement that audio section and data segment are done, it two is at video-frequency band, the improvement that each load unit in audio section or the data segment is done, these two improvements can use separately, also can be used, all can be in the efficiency of transmission that improves multimedia broadcast data, reduce the error rate of mobile multi-media broadcasting service data cell, the aspects such as effect that the fault tolerance of enhancing mobile multi-media service and error detection function and raising receiving terminal user's rating is experienced produce good beneficial effect.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (42)
1. the transmission method of a mobile multi-media broadcasting data is characterized in that, comprising:
Generate and send broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, and the section that the section tail of each section comprises this section finishes sign;
Receive described broadcast channel frame, from described broadcast channel frame, parse each multiplexed frame, parse each multiplexed sub frame from each multiplexed frame, parse the video-frequency band, audio section or the data segment that comprise from each multiplexed sub frame, the section tail of each section finishes to identify definite by the section of this section.
2. transmission method as claimed in claim 1, it is characterized in that, described multiplexed sub frame also comprises the subframe head, the section of comprising finishes the sign indication information in the described subframe head, and described section end sign indication information is used in reference to give instructions in reply and finishes sign with the section of comprising in each video-frequency band, audio section or the data segment in the subframe.
3. transmission method as claimed in claim 1 or 2 is characterized in that, it is identical or different that the section of described video-frequency band, audio section and data segment finishes sign.
4. transmission method as claimed in claim 3 is characterized in that, described section is finished sign and comprise a byte at least.
5. the sending method of a mobile multi-media broadcasting data is characterized in that, comprising:
Generate broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, and described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, and the section that the section tail of each section comprises this section finishes sign;
Send described broadcast channel frame.
6. sending method as claimed in claim 5, it is characterized in that, described multiplexed sub frame also comprises the subframe head, comprise described section in the described subframe head and finish the sign indication information, described section end sign indication information is used in reference to give instructions in reply and finishes sign with the section of comprising in each video-frequency band, audio section or the data segment in the subframe.
7. as claim 5 or 6 described sending methods, it is characterized in that it is identical or different that the section of described video-frequency band, audio section and data segment finishes sign.
8. sending method as claimed in claim 7 is characterized in that, described section is finished sign and comprise a byte at least.
9. the method for reseptance of a mobile multi-media broadcasting data is characterized in that, comprising:
Receive broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, and described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, and the section that the section tail of each section comprises this section finishes sign;
From described broadcast channel frame, parse each multiplexed frame, from each multiplexed frame, parse each multiplexed sub frame, parse video-frequency band, audio section or data segment in the described multimedia broadcast data from each multiplexed sub frame, the section tail of each section finishes to identify definite by the section of this section.
10. method of reseptance as claimed in claim 9 is characterized in that, the section of comprising finishes the sign indication information in the subframe head of each multiplexed sub frame, and described method of reseptance also comprises:
Parse video-frequency band, audio section or the data segment that comprises from each multiplexed sub frame before, the section of discerning in the described subframe head finishes the sign indication information, and finishes the sign indication information according to described section and confirm that the section tail section of comprising of each section finishes sign.
11., it is characterized in that it is identical or different that the section of described video-frequency band, audio section and data segment finishes sign as claim 9 or 10 described method of reseptances.
12. method of reseptance as claimed in claim 11 is characterized in that, described section is finished sign and comprises a byte at least.
13. the transmission system of a mobile multi-media broadcasting data is characterized in that, comprising:
First dispensing device, be used to generate and send broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, and the section that the section tail of each section comprises this section finishes sign;
First receiving device, be used to receive described broadcast channel frame, from described broadcast channel frame, parse each multiplexed frame, from each multiplexed frame, parse each multiplexed sub frame, parse the video-frequency band, audio section or the data segment that comprise from each multiplexed sub frame, the section tail of each section finishes to identify definite by the section of this section.
14. transmission system as claimed in claim 13 is characterized in that:
Described first dispensing device is the section of setting end sign indication information in the subframe head of each multiplexed sub frame also, and described section is finished the sign indication information and be used in reference to the section tail section of the comprising end sign of giving instructions in reply with each video-frequency band, audio section or data segment in the subframe;
Described first receiving device is also discerned the section that comprises in the subframe head of each multiplexed sub frame and is finished the sign indication information, and finishes the sign indication information according to described section and confirm that the section tail of each section comprises described section and finishes sign.
15. the dispensing device of a mobile multi-media broadcasting data is characterized in that, comprising:
The first broadcast channel frame generation unit, be used to generate broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, and the section that the section tail of each section comprises this section finishes sign;
The first broadcast channel frame transmitting element is used to send described broadcast channel frame.
16. dispensing device as claimed in claim 15, it is characterized in that, the described first broadcast channel frame generation unit is the section of setting end sign indication information in the subframe head of each multiplexed sub frame also, and described section is finished the sign indication information and be used in reference to the section tail section of the comprising end sign of giving instructions in reply with each video-frequency band, audio section or data segment in the subframe.
17. the receiving system of a mobile multi-media broadcasting data is characterized in that, comprising:
The first broadcast channel frame receiving element, be used to receive broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, and the section that the section tail of each section comprises this section finishes sign;
The first broadcast channel frame resolution unit, be used for parsing each multiplexed frame from described broadcast channel frame, from each multiplexed frame, parse each multiplexed sub frame, parse video-frequency band, audio section or data segment in the described multimedia broadcast data from each multiplexed sub frame, the section tail of each section finishes to identify definite by the section of this section.
18. receiving system as claimed in claim 17, it is characterized in that, described broadcast channel frame resolution unit is also discerned the section that comprises in the subframe head of each multiplexed sub frame and is finished the sign indication information, and finishes the described indication information of sign according to section and confirm that comprising described section in each section finishes sign.
19. the transmission method of a mobile multi-media broadcasting data is characterized in that, comprising:
Generate and send broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, the section that the section tail of described video-frequency band, audio section or data segment comprises this section finishes sign, comprise at least one load unit in each section, the unit that the afterbody of each load unit comprises this unit finishes sign;
Receive described broadcast channel frame, from described broadcast channel frame, parse each multiplexed frame, from each multiplexed frame, parse each multiplexed sub frame, from each multiplexed sub frame, parse the video-frequency band, audio section or the data segment that comprise, the section tail of each section finishes to identify definite by the section of this section, parse each load unit from each section, the afterbody of each load unit finishes to identify definite by the unit of this unit.
20. transmission method as claimed in claim 19, it is characterized in that, described video-frequency band, audio section or data segment also comprise paragraph header, comprise the unit in the described paragraph header and finish the sign indication information, described unit finishes the sign indication information and is used for indicating each video-frequency band, audio section or data segment to comprise unit end sign.
21. transmission method as claimed in claim 20, it is characterized in that, described multiplexed sub frame also comprises the subframe head, the section of comprising finishes the sign indication information in the described subframe head, and described section end sign indication information is used in reference to give instructions in reply and finishes sign with the section of comprising in each video-frequency band, audio section or the data segment in the subframe.
22. transmission method as claimed in claim 21 is characterized in that:
It is identical or different that the unit of described video-frequency band, audio section and data segment finishes sign; And/or
It is identical or different that the section of described video-frequency band, audio section and data segment finishes sign.
23. transmission method as claimed in claim 22 is characterized in that, described unit finishes sign and/or section end sign comprises a byte at least.
24. the sending method of a mobile multi-media broadcasting data is characterized in that, comprising:
Generate broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, the section that the section tail of described video-frequency band, audio section or data segment comprises this section finishes sign, comprise at least one load unit in each section, the unit that the afterbody of each load unit comprises this unit finishes sign;
Send described broadcast channel frame.
25. sending method as claimed in claim 24, it is characterized in that, described video-frequency band, audio section or data segment also comprise paragraph header, comprise the unit in the described paragraph header and finish the sign indication information, described unit finishes the sign indication information and is used for indicating each video-frequency band, audio section or data segment to comprise unit end sign.
26. sending method as claimed in claim 25, it is characterized in that, described multiplexed sub frame also comprises the subframe head, the section of comprising finishes the sign indication information in the described subframe head, and described section end sign indication information is used in reference to give instructions in reply and finishes sign with the section of comprising in each video-frequency band, audio section or the data segment in the subframe.
27. sending method as claimed in claim 26 is characterized in that:
It is identical or different that the unit of described video-frequency band, audio section and data segment finishes sign; And/or
It is identical or different that the section of described video-frequency band, audio section and data segment finishes sign.
28. sending method as claimed in claim 27 is characterized in that, described unit finishes sign and/or section end sign comprises a byte at least.
29. the method for reseptance of a mobile multi-media broadcasting data is characterized in that, comprising:
Receive broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, the section that the section tail of described video-frequency band, audio section or data segment also comprises this section finishes sign, comprise at least one load unit in each section, the unit that the afterbody of each load unit comprises this unit finishes sign;
From described broadcast channel frame, parse each multiplexed frame, from each multiplexed frame, parse each multiplexed sub frame, from each multiplexed sub frame, parse the video-frequency band, audio section or the data segment that comprise, the section tail of each section finishes to identify definite by the section of this section, parse each load unit from each section, the afterbody of each load unit finishes to identify definite by the unit of this unit.
30. method of reseptance as claimed in claim 29 is characterized in that, each video-frequency band, audio section or data segment also comprise paragraph header, comprise the unit in the described paragraph header and finish the sign indication information, and described method of reseptance also comprises:
Before from each video-frequency band, audio section or data segment, parsing the load unit that comprises, the unit of discerning in the described paragraph header finishes the sign indication information, and finishes the sign indication information according to described unit and confirm that the afterbody of load unit comprises the unit and finishes sign.
31. method of reseptance as claimed in claim 30 is characterized in that, described multiplexed sub frame also comprises the subframe head, and the section of comprising finishes the sign indication information in the described subframe head, and described method of reseptance also comprises:
Parse video-frequency band, audio section or the data segment that comprises from each multiplexed sub frame before, the section of discerning in the described subframe head finishes the sign indication information, and finishes the sign indication information according to described section and confirm that the section tail section of comprising of each section finishes sign.
32. method of reseptance as claimed in claim 31 is characterized in that:
It is identical or different that the unit of described video-frequency band, audio section and data segment finishes sign; And/or
It is identical or different that the section of described video-frequency band, audio section and data segment finishes sign.
33. method of reseptance as claimed in claim 32 is characterized in that, described unit finishes sign and/or section end sign comprises a byte at least.
34. the transmission system of a mobile multi-media broadcasting data is characterized in that, comprising:
Second dispensing device, be used to generate and send broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, the section tail section of comprising of described video-frequency band, audio section or data segment finishes sign, comprises at least one load unit in each section, and the unit that the afterbody of each load unit comprises this unit finishes sign;
Second receiving system, be used to receive described broadcast channel frame, from described broadcast channel frame, parse each multiplexed frame, from each multiplexed frame, parse each multiplexed sub frame, from each multiplexed sub frame, parse the video-frequency band, audio section or the data segment that comprise, the section root of the tail of each video-frequency band, audio section or data segment finishes sign according to the section of this section to be determined, parses each load unit from each section, and the afterbody of each load unit finishes sign by the unit of this unit and determines.
35. transmission system as claimed in claim 34 is characterized in that:
Described second dispensing device also is provided with the unit and finishes the sign indication information in the paragraph header of each video-frequency band, audio section or data segment, described unit end sign indication information is used in reference to the afterbody of giving instructions in reply with each load unit in the subframe and comprises unit end sign;
Described second receiving system is also discerned the unit that comprises in the paragraph header of each video-frequency band, audio section or data segment and is finished the sign indication information, and finishes the sign indication information according to described unit and confirm that the afterbody of each load unit comprises the unit and finishes sign.
36. transmission system as claimed in claim 35 is characterized in that:
Described second dispensing device is the section of setting end sign indication information in the subframe head of multiplexed sub frame also;
Described second receiving system is also discerned the section that comprises in the subframe head of each multiplexed sub frame and is finished the sign indication information, and finishes the sign indication information according to described section and confirm that the section tail of each section comprises described section and finishes sign.
37. the dispensing device of a mobile multi-media broadcasting data is characterized in that, comprising:
The second broadcast channel frame generation unit, be used to generate broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, the section tail section of comprising of described video-frequency band, audio section or data segment finishes sign, comprises at least one load unit in each section, and the unit that the afterbody of each load unit comprises this unit finishes sign;
The second broadcast channel frame transmitting element is used to send described broadcast channel frame.
38. dispensing device as claimed in claim 37, it is characterized in that, the described second broadcast channel frame generation unit also is provided with the unit and finishes the sign indication information in the paragraph header of each video-frequency band, audio section or data segment, described unit end sign indication information is used in reference to the afterbody of giving instructions in reply with each load unit in the subframe and comprises unit end sign.
39. as claim 37 or 38 described dispensing devices, it is characterized in that, the described second broadcast channel frame generation unit is the section of setting end sign indication information in the subframe head of multiplexed sub frame also, and described section end sign indication information is used in reference to give instructions in reply and finishes to identify with the section of comprising in each video-frequency band, audio section or the data segment in the subframe.
40. the receiving system of a mobile multi-media broadcasting data is characterized in that, comprising:
The second broadcast channel frame receiving element, be used to receive broadcast channel frame, described broadcast channel frame comprises at least one multiplexed frame, described multiplexed frame comprises at least one multiplexed sub frame, described multiplexed sub frame comprises video-frequency band, audio section or the data segment in the mobile multi-media broadcasting data at least, the section tail section of comprising of described video-frequency band, audio section or data segment finishes sign, comprises at least one load unit in each section, and the unit that the afterbody of each load unit comprises this unit finishes sign;
The second broadcast channel frame resolution unit, from described broadcast channel frame, parse each multiplexed frame, from each multiplexed frame, parse each multiplexed sub frame, from each multiplexed sub frame, parse the video-frequency band, audio section or the data segment that comprise, the section root of the tail of each video-frequency band, audio section or data segment finishes to identify definite according to the section of this section, parse each load unit from each section, the afterbody of each load unit finishes to identify definite by the unit of this unit.
41. receiving system as claimed in claim 40, it is characterized in that, the described second broadcast channel frame resolution unit is also discerned the unit that comprises in the paragraph header of each video-frequency band, audio section or data segment and is finished the sign indication information, and finishes the sign indication information according to described unit and confirm to comprise in each load unit described unit end sign.
42. as claim 40 or 41 described receiving systems, it is characterized in that, in the subframe head of described multiplexed sub frame also the section of comprising finish the sign indication information; And
The described second broadcast channel frame resolution unit is also discerned the section that comprises in the subframe head of each multiplexed sub frame and is finished the sign indication information, and finishes the sign indication information according to described section and confirm that the section tail of each section comprises described section and finishes sign.
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| JP4517310B2 (en) * | 2008-03-27 | 2010-08-04 | ソニー株式会社 | Imaging apparatus, character information association method, and character information association program |
| CN101335898B (en) * | 2008-07-31 | 2010-12-08 | 中兴通讯股份有限公司 | Deplexing apparatus and method for mobile multimedia broadcast terminal |
| CN103095413A (en) * | 2013-01-15 | 2013-05-08 | 中国航空工业集团公司西安飞机设计研究所 | Application method for HB6096 data bus |
| CN107948904B (en) * | 2017-12-26 | 2020-10-02 | 深圳Tcl新技术有限公司 | Sound box aging test method and device and computer readable storage medium |
| CN115277870B (en) * | 2021-04-14 | 2023-11-28 | 施耐德电气（中国）有限公司 | Communication data processing device, data communication device, corresponding method and communication system |
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| CN1072553A (en) * | 1991-11-07 | 1993-05-26 | Rca·汤姆森许可公司 | Be used for device at the digital video processing system concealing errors |
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| CN1072553A (en) * | 1991-11-07 | 1993-05-26 | Rca·汤姆森许可公司 | Be used for device at the digital video processing system concealing errors |
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| 解伟 等.GY/T 220.0-2006 移动多媒体广播 第2部分：复用.国家广播电影电视总局广播电视规划院,2006,1-29. |
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Effective date of registration: 20151224 Address after: 100080, Beijing, Zhongguancun Haidian District Street 11, 100 million world wealth center, block A, 12 Patentee after: BEIJING BOXIN SHITONG TECHNOLOGY CO., LTD. Address before: 100084 No. 8, building 1, No. 2303, Zhongguancun East Road, Beijing, Haidian District Patentee before: Beijing Chuangyi Vision Technology Co., Ltd. |
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