CN102301701A - Transmitting/receiving System And Method Of Processing Data In The Transmitting/receiving System - Google Patents

Transmitting/receiving System And Method Of Processing Data In The Transmitting/receiving System Download PDF

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Publication number
CN102301701A
CN102301701A CN2009801558968A CN200980155896A CN102301701A CN 102301701 A CN102301701 A CN 102301701A CN 2009801558968 A CN2009801558968 A CN 2009801558968A CN 200980155896 A CN200980155896 A CN 200980155896A CN 102301701 A CN102301701 A CN 102301701A
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China
Prior art keywords
fic
piece
information
header
data
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Granted
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CN2009801558968A
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Chinese (zh)
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CN102301701B (en
Inventor
宋在炯
崔仁焕
G·托马斯
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LG Electronics Inc
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LG Electronics Inc
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Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Priority to CN201410557708.7A priority Critical patent/CN104270215B/en
Priority claimed from PCT/KR2009/004023 external-priority patent/WO2010087554A1/en
Publication of CN102301701A publication Critical patent/CN102301701A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/0803—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division using frequency interleaving, e.g. with precision offset
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1004—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's to protect a block of data words, e.g. CRC or checksum
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control

Abstract

A transmitting/receiving system and a data processing method of the same are disclosed herein. The receiving system may include a receiving unit, a first processing unit, and a second processing unit. The receiving unit receives a broadcast signal including mobile service data and an FIC segment from at least one slot. The first processing unit acquires FIC segments from the broadcast signal and obtains an FIC chunk, wherein the obtained FIC chunk is configured of a chunk header and a chunk payload. Herein, the chunk header may include FIC chunk major protocol version information and FIC chunk minor protocol version information, and the chunk payload may include signaling information between at least one ensemble and at least one mobile service. The second processing unit processes the FIC chunk based upon the FIC chunk major protocol version information and the FIC chunk minor protocol version information.

Description

Transmission/receiving system and in transmission/receiving system the method for deal with data
Technical field
The present invention relates to a kind of transmitting system that is used for sending digital broadcast signal, be used to receive the receiving system (or receiver) of the digital broadcast signal that sends from transmitting system and in the method for transmitting system and receiving system (or receiver) deal with data.
Background technology
Be used the system that is to use the single carrier method as the residual sideband transmission mode of standards for digital broadcasting in North America and Korea S.Therefore, in the channel circumstance of difference, the receptivity of receiving system can worsen.Specifically, owing to need to resist the variation and the noise of channel more when using portable and/or mobile broadcast receiver, when sending mobile service data by the VSB transmission mode, receptivity may worsen more.
Summary of the invention
Therefore, the present invention is devoted to provide a kind of transmission/receiving system and data processing method of having eliminated fully owing to one or more problem that limitation and shortcoming caused of correlation technique.
An object of the present invention is to provide a kind of transmission/receiving system and the data processing method that can highly resist channel variation and noise.
Another object of the present invention provides a kind of by utilizing signaling information can carry out transmission/receiving system and data processing method that effective channel is provided with.
A further object of the present invention provides a kind ofly can also carry out transmission/receiving system and data processing method that effective channel is provided with by utilizing fast information channel in dab receiver (FIC:fast information channel).
Other advantage of the present invention, purpose and a feature part will be set forth in the following description book, and a part will become clear for a person skilled in the art after studying following content carefully, perhaps can know from practice of the present invention.These purposes of the present invention and other advantage can realize by the structure of specifically noting in this written description and claims and accompanying drawing and obtain.
As the concrete enforcement of institute here and broadly described, in order to realize these purposes and other advantage, and according to purpose of the present invention, the method of deal with data may further comprise the steps in receiving system: receive the broadcast singal that comprises mobile service data and FIC section from least one time slot, wherein, transmission frame is made of a plurality of subframes that are used to receive at least one assemblage and at least one mobile service, and wherein, subframe is made of a plurality of time slots; From described broadcast singal, obtain the FIC section and obtain the FIC piece, the FIC piece that is obtained is made of piece header and piece payload, wherein, described header comprises FIC piece master agreement version information and the secondary protocol version information of FIC piece, and wherein, described payload comprises the signaling information between at least one assemblage and at least one mobile service; And come described FIC piece is handled based on the secondary protocol version information of the described FIC piece master agreement version information in the described header that is included in described FIC piece and described FIC piece.
In this article, the piece header can also be included in the described FIC piece in the extension length information of the extension length information of extension length information, assemblage circulation header of the FIC piece header that transmits with signal and mobile service circulation at least one and about the information of the quantity of assemblage.
FIC piece header extension information with the corresponding n1 of the described extension length information byte of described FIC piece header can be added into the end (wherein, n1 〉=0) of described FIC piece header.To be added into the end (wherein, n2 〉=0) of described assemblage circulation header with the assemblage circulation header extension information of the corresponding n2 of the described extension length information byte of described assemblage circulation header.And, will be added into the end (wherein, n3 〉=0) that described mobile service circulates with the mobile service cyclic extensions information of the corresponding n3 of the described extension length information byte of described mobile service circulation.
And each FIC section that constitutes the FIC piece can comprise the section header of 2 bytes and the section payload of 35 bytes.Here, described section header comprises the numbering of FIC type information, the corresponding FIC section a plurality of FIC sections of being divided from described FIC piece and the numbering of last the FIC section described a plurality of FIC sections of being divided from described FIC piece.And described section payload can comprise a part of signaling information between at least one assemblage and at least one mobile service.
According to another aspect of the present invention, receiving system comprises receiving element, first processing unit and second processing unit.Receiving element receives the broadcast singal that comprises mobile service data and FIC section from least one time slot.Here, transmission frame is made of a plurality of subframes that are used to receive at least one assemblage and at least one mobile service, and subframe is made of a plurality of time slots.First processing unit obtains the FIC section and obtains the FIC piece from described broadcast singal, the FIC piece that is wherein obtained is made of piece header and piece payload.Here, described header can comprise FIC piece master agreement version information and the secondary protocol version information of FIC piece, and described payload comprises the signaling information between at least one assemblage and at least one mobile service.Second processing unit is handled described FIC piece based on described FIC piece master agreement version information in the described header that is included in described FIC piece and the secondary protocol version information of described FIC piece.
Should be understood that the general description of front and the specific descriptions of back all are exemplary and indicative, and be intended to provide further explanation the present invention for required protection.
Beneficial effect
According to transmitting system of the present invention and receiving system with and data processing method have the following advantages.
The present invention can be transmitted in mapping (or signaling) information between at least one assemblage and at least one mobile service with signal by utilizing the FIC piece, and the FIC piece can be divided into the FIC segment unit and send, obtain thereby make receiving system can carry out fast business.
In addition, when the size of data of FIC piece less than or during greater than the size of data of the FIC section that is transmitting by single subframe, the present invention can transmit a plurality of FIC sections of being divided from the FIC piece by single subframe or by a plurality of subframes, thereby prevents that the FIC section is wasted.
In addition, the present invention can transmit the protocol version information with the corresponding FIC piece of FIC section by the header of FIC section, even thereby when in single M/H frame, having the FIC piece of different protocol versions simultaneously, also can make receiving system to comprise that the FIC section of corresponding protocols version accurately recovers the FIC piece by utilization.
The present invention also can transmit identifying information, it is corresponding with the signaling information of current M/H frame that this identifying information is used to discern the signaling information that header by the FIC section is sent to the payload of corresponding FIC section, also whether corresponding with the signaling information of next M/H frame, even thereby, also can make receiving system can accurately recover the FIC piece by the FIC section of utilizing corresponding M/H frame when in single M/H frame, existing the FIC piece of assemblage configuration information that transmits current M/H frame with signal when transmitting the FIC piece of assemblage configuration information of next M/H frame simultaneously with signal.
More particularly, the present invention resists any noise that (or opposing) can take place to heavens when transmitting mobile service data by channel.And the present invention also receiving system with traditional is compatible to heavens.In addition, even in the channel with serious phantom (ghost) effect and noise, the present invention also can receive mobile service data without any mistake ground.In addition, insert given data and transmit the data of handling,, also can strengthen the receptivity of receiving system even in the signal environment that is subject to the frequency shift influence by the certain location in the data area.At last, the present invention is applied to that be subject to influence that the channel medium frequency changes and more effective when moving of need resisting (or keeping out) severe noise and portable receiver.
Description of drawings
Accompanying drawing is included among the application providing further understanding of the present invention, and is attached among the application and constitutes the application's a part, and accompanying drawing shows a plurality of execution mode of the present invention, and is used from specification one and explains principle of the present invention.In the accompanying drawings:
Fig. 1 illustration block diagram according to the general structure of the receiving system of an embodiment of the invention is shown;
Fig. 2 illustration according to an exemplary configurations of data set of the present invention;
Fig. 3 illustration according to the RS frame of an embodiment of the invention;
Fig. 4 illustration according to an example that is used to send and receive the M/H frame structure of mobile service data of the present invention;
Fig. 5 illustration an example of general VSB frame structure;
Fig. 6 illustration according to the data transmission structure in physical layer of an embodiment of the invention;
Fig. 7 illustration according to the signaling structure of the layering of an embodiment of the invention;
Fig. 8 illustration according to the syntactic structure of the FIC piece of an embodiment of the invention;
Fig. 9 illustration according to the syntactic structure of the FIC piece header of an embodiment of the invention;
Figure 10 illustration according to the exemplary change in the secondary protocol version of FIC piece of the present invention;
Figure 11 illustration when the secondary protocol version of FIC piece according to the present invention changes, handle the example process of FIC piece;
Figure 12 illustration according to the syntactic structure of the FIC piece payload of an embodiment of the invention;
Figure 13 illustration according to an example of the segment processing of FIC piece of the present invention;
Figure 14 illustration according to FIC section that an embodiment of the invention transmitted;
Figure 15 illustration the FIC section that is transmitted according to another implementation of the invention;
Figure 16 illustration according to the syntactic structure of the FIC section header of an embodiment of the invention;
Figure 17 illustration recover an example of (or obtaining) one or more FIC piece according to of the present invention by receiving the FIC section;
Figure 18 illustration recover another example of (or obtaining) one or more FIC piece according to of the present invention by receiving the FIC section;
Figure 19 illustration according to of the present invention when by receiving an example of the mistake that may occur when the FIC section is recovered one or more FIC piece;
Figure 20 illustration the syntactic structure of FIC section header according to another implementation of the invention;
Figure 21 illustration recover another example of one or more FIC piece according to of the present invention by receiving the FIC section;
Figure 22 illustration according to the reconstruct of the FIC piece of exemplary generation of the present invention;
Figure 23 illustration obtain processing according to according to the present invention by the FIC piece being carried out the exemplary RS frame that signaling in advance sends;
Figure 24 illustration obtain processing according to according to the present invention by the FIC piece being carried out another exemplary RS frame that signaling in advance sends;
Figure 25 illustration recover another example that one or more FIC piece is the mistake that takes place according to of the present invention by receiving the FIC section;
Figure 26 illustration the syntactic structure of FIC section header according to another implementation of the invention;
Figure 27 illustration according to the syntactic structure of the TPC data of an embodiment of the invention;
Figure 28 illustration illustration recover another example of one or more FIC piece according to of the present invention by receiving the FIC section; And
Figure 29 and Figure 30 illustration pass through to receive the flow chart that the FIC section is recovered one or more FIC piece according to an embodiment of the invention.
Embodiment
To describe preferred implementation of the present invention in detail below, example shows the example of preferred implementation of the present invention in the accompanying drawings.In whole accompanying drawing, represent identical or like as far as possible with identical label.In addition, although employed term is to be selected from public term among the present invention, but mentioned part term is that the applicant selects according to his or she consideration in the specification of the present invention, and the relevant portion in this paper specification has been made explanation to the detailed meanings of these terms.In addition, the present invention understood in the term that can not use by reality simply, but need understand the present invention by meaning inherent in each term.
Among the employed term, the main business data are corresponding with the data that can receive by the receiving system of fixing, and can comprise audio/video (A/V) data in description of the invention.More particularly, the main business data can comprise high definition (HD:high definition) or other A/V data of SD (SD:standard definition) level, and also can comprise at the required numerous types of data of data broadcasting.And given data is with given data is corresponding in advance according to agreement default between receiving system and the transmitting system.
In addition, in term used in the present invention, " M/H " (or MH) is corresponding with the initial of " moving " and " handing ", and the expression notion opposite with fixed system.In addition, the M/H business datum can comprise at least one in mobile service data and the hand-held business datum, and for simply, also can be referred to as " mobile service data ".Below, M/H, MH are used as identical implication with moving.In this article, mobile service data is not only corresponding to the M/H business datum but also can comprise having and move or the business datum of any kind of portable nature.Therefore, mobile service data according to the present invention is not limited only to the M/H business datum.
Above-mentioned mobile service data can be corresponding to having for example data of the information of program execute file, stock information etc., and also can be corresponding to the A/V data.More particularly, mobile service data can be with to have the A/V data of comparing lower resolution and lower data rate with the main business data corresponding.For example, can be if the A/V codec that is used for traditional main service, then has the MPEG-4 advanced video encoding (AVC:advanced video coding) or the gradable video encoding (SVC:scalable video coding) of better video image compression efficient corresponding to the MPEG-2 codec as A/V codec at mobile service.In addition, the data of any kind can be used as mobile service data and send.For example, being used to broadcast real-time Transmission transmission of Information protocol expert group (TPEG:transport protocol expert group) data can be used as the main business data and sends.
And, utilize the data, services of mobile service data can comprise weather forecast service, traffic-information service, the stock information service, spectators participate in test program, ballot in real time and investigation, the interactive educational radio program, game services, synopsis about soap opera or serial is provided, the personage, the service of the information of background music and spot for photography, provide about the service of the information of the match score in past and sportsman's Profile and achievement and provide about make that purchase order can be processed by service, media, the service of the product information that time and theme are classified and the information of program.In this article, the present invention is not limited only to above-mentioned service.In the present invention, transmitting system provides the back compatible in the main business data, so that receive by traditional receiving system.Here, main business data and mobile service data are multiplexed to identical physical channel, send then.
In the present invention, transmitting system provides the back compatible in the main business data, so that receive by traditional receiving system.Here, main business data and mobile service data are multiplexed to identical physical channel, send then.
In addition, transmitting system according to the present invention is carried out other coding and is inserted receiving system and the known data (for example, given data) of transmitting system mobile service data, thereby sends treated data.
Therefore, when using according to transmitting system of the present invention, receiving system can receive mobile service data in mobile status, even and if in channel, have various distortions and noise, also can stably receive mobile service data.
According to an embodiment of the invention, transmitting system and receiving system are operated two kinds of data of different types channels: fast information channel in dab receiver (the FIC:fast information channel) data channel that is used to send the RS frame data channel of content and is used to the service of obtaining.
More particularly, the present invention can transmit map information between assemblage and the mobile service with signal by using the FIC piece, and the FIC piece can be divided into the FIC segment unit, and send the FIC segment unit after dividing, obtain thereby make receiving system to serve fast.
In addition, when the size of data of FIC piece less than or during greater than the size of data of the FIC section that sends by single subframe, the present invention can be by single subframe or by a plurality of FIC sections of a plurality of subframes transmissions from the division of FIC piece, thereby prevents that the FIC section is wasted.
In addition, the present invention can send the protocol version information with the corresponding FIC piece of FIC section by the header of FIC section, even thereby making the FIC piece in single M/H frame, there is different protocol versions simultaneously, receiving system also can accurately be recovered (or obtaining) FIC piece by the FIC section that the corresponding protocols version is disposed in utilization.
The present invention also can send identifying information, whether the signaling information that this identifying information is used to discern the payload that is sent to corresponding FIC section is corresponding with the signaling information of the signaling information of current M/H frame or next M/H frame, even thereby the feasible FIC piece signaling assemblage configuration information of current M/H frame and the FIC piece signaling assemblage configuration information of next M/H frame of in single M/H frame, existing simultaneously, receiving system also can accurately be recovered the FIC piece by the FIC section of using corresponding M/H frame.
Receiving system
Fig. 1 illustration according to the block diagram of the general structure of the receiving system of an embodiment of the invention.With reference to Fig. 1, the arrow data paths that is shown in dotted line, the arrow indication control signal path shown in the solid line.
Receiving system according to the present invention comprises operation control 100, tuner 111, demodulator 112, equalizer 113, known sequence detector (or known data detector) 114, block decoder 115, main Read-Solomon (RS) frame decoder 116, auxilliary RS frame decoder 117, signaling decoder 118 and baseband controller 119.Can also comprise FIC processor 121, Service Manager 122, traffic signaling manager 123 and first memory cell 124 according to receiving system of the present invention.Can also comprise main RS frame buffer 131, auxilliary RS frame buffer 132 and transmission package (TS) processor 133 according to receiving system of the present invention.Can also comprise Internet protocol (IP:Internet Protocol) datagram processor 141 according to receiving system of the present invention; descrambler 142; User Datagram Protoco (UDP) (UDP:User Datagram Protocol) datagram processor 143; RTP/RTCP Real-time Transport Control Protocol (RTP/RTCP) datagram processor 144; NTP (Network Time Protocol) (NTP:Network Time Protocol) datagram processor 145; service protection stream processor 146; second memory cell 147; asynchronous layered coding/hierarchical coding transmission (ALC/LCT) stream processor 148; extend markup language (XML) resolver 150 and field apparatus instrument (FDT:Field Device Tool) processor 151.Can also comprise audio/video (A/V) decoder 161, file decoder 162, the 3rd memory cell 163, middleware (M/W) engine 164 and service guide (SG) processor 165 according to receiving system of the present invention.Can also comprise electronic program guides (EPG:Electronic Program Guide) manager 171, application manager 172 and user interface (UI) manager 173 according to receiving system of the present invention.
For the present invention describe simple and clear, in this article, operation control 100, tuner 111, demodulator 112, equalizer 113, known sequence detector (or known data detector) 114, block decoder 115, main RS frame decoder 116, auxilliary RS frame decoder 117, signaling decoder 118 and baseband controller 119 are referred to as baseband processor 110.FIC processor 121, Service Manager 122, traffic signaling manager 123 and first memory cell 124 are referred to as service duplexer 120.Main RS frame buffer 131, auxilliary RS frame buffer 132 and TS processor 133 are referred to as IP adaptation module 130.IP datagram processor 141, descrambler 142, UDP datagram processor 143, RTP/RTCP datagram processor 144, NTP datagram processor 145, service protection stream processor 146, second memory cell 147, ALC/LCT stream processor 148, XML resolver 150 and FDT processor 151 are referred to as public IP module 140.A/V decoder 161, file decoder 162, the 3rd memory cell 163, M/W engine 164 and SG processor 165 are referred to as application module 160.
In addition, although employed term is to be selected from public term among Fig. 1, but mentioned part term is that the applicant selects according to his or she consideration in the description of Fig. 1, and the relevant portion in this paper specification has been made explanation to the detailed meanings of these terms.In addition, the present invention understood in the term that can not use by reality simply, but need understand the present invention by meaning inherent in each term.
With reference to Fig. 1,119 pairs of operations that are included in each piece in the baseband processor 110 of baseband controller are controlled.
Tuner 111 by with receiving system be tuned to specific physical channel frequency (perhaps the used physical transmission channel frequency PTC) makes receiving system can receive main business data (corresponding to the broadcast singal of the broadcast receiver system that is used for fixing type) and mobile service data (corresponding to the broadcast singal that is used for the mobile broadcast receiving system).Herein, be tuned to the frequency of particular physical channel to down-converting to intermediate frequency (IF) signal, thus it is outputed to demodulator 112 and known sequence detector 114.Can include only the main business data from the passband numeral IF signal of tuner 111 outputs, perhaps can include only mobile service data, perhaps can not only comprise the main business data but also comprise mobile service data.
112 pairs of passband numeral IF signals from tuner 111 inputs of demodulator are carried out from gain controlling, carrier wave and are recovered and regularly recover to handle, and are baseband signal with the IF conversion of signals thus.Subsequently, demodulator 112 outputs to equalizer 113 and known sequence detector 114 with baseband signal.Demodulator 112 uses between convalescence from the given data symbol sebolic addressing of known sequence detector 114 inputs in timing and/or carrier wave, improves demodulation performance thus.113 pairs in equalizer is included in through the distortion relevant with channel in the signal after demodulator 112 demodulation and is compensated.Subsequently, equalizer 113 will output to block decoder 115 through the signal behind the distortion compensation.Equalizer 113 improves equalization performance by using from the given data symbol sebolic addressing of known sequence detector 114 inputs.In addition, equalizer 113 can improve equalization performance thus from the feedback of block decoder 115 receptions to decoded result.
Known sequence detector 114 detects the given data place (or position) of being inserted by transmitting system from I/O data (that is, by the data before the demodulation or by the data of part demodulation process).Subsequently, known sequence detector 114 outputs to demodulator 112, equalizer 113 and baseband controller 119 with detected known data location information and according to the given data sequence that detected positional information generates.In addition, use additional code to carry out mobile service data of handling and the main business data of not handling through any additional code as yet in order to make block decoder 115 identify by transmitting system, known sequence detector 114 outputs to block decoder 115 with this corresponding information.
If the data of the data of carrying out channel equalization and being imported into block decoder 115 through equalizer 113 after both handle corresponding to the block encoding that is utilized Serial Concatenated Convolutional Code (SCCC:serial concatenated convolution code) method by transmitting system and grid coding (trellis-encoding) (promptly, data, signaling data in the RS frame), then block decoder 115 can be carried out contrary trellis decode of handling (trellis-decoding) and the piece decoding as transmitting system.On the other hand, if the data of having carried out channel equalization and being imported into block decoder 115 through equalizer 113 are corresponding to only having carried out grid coding by transmitting system but do not carry out data that block encoding handles (promptly, the main business data), then block decoder 115 can only be carried out trellis decode.
118 pairs of signaling decoders are from equalizer 113 inputs and decoded through the signaling data of channel equalization.The signaling data (perhaps signaling information) of supposing to be input to signaling decoder 118 is corresponding to utilized block encoding and grid coding to handle data afterwards by transmitting system.The example of such signaling data can comprise transmission parameter channel (TPC) data and fast information channel in dab receiver (FIC) data.
For example, among the data that are transfused to, 118 pairs of signaling decoders and the corresponding data in signaling information zone are carried out the recurrence turbo decodings (regressive turbo decoding) of Parallel Concatenated Convolutional Code (PCCC:parallel concatenaated convolution code) method.Subsequently, signaling decoder 118 is isolated FIC data and TPC data from the signaling data that returns the turbo decoding.In addition, the TPC data of 118 pairs of separation of signaling decoder are carried out the contrary RS decoding of handling as transmitting system, thereby export treated data to baseband controller 119.And the FIC data of 118 pairs of separation of signaling decoder are that unit carries out deinterleaving with the subframe, decode with the contrary RS that handles that the FIC data of deinterleaving are carried out as transmitting system, thereby export treated data to FIC processor 121.With the FIC section is that unit sends from signaling decoder 118 and is deinterlaced with RS decoding and exports the FIC data of FIC processor 121 to.
FIC processor 121 receives the FIC data from signaling decoder 118, is used for the signaling information (that is the map information between assemblage and the mobile service) that business is obtained with extraction.For this reason, FIC processor 121 can comprise FIC segment buffer, FIC section resolver and FIC piece resolver.
The FIC segment buffer is to being that the FIC section group of unit input is carried out buffer memory from signaling decoder 118 with the M/H frame, thereby exports the FIC section group of buffer memory to FIC section resolver.Thereafter, FIC section resolver extracts the header that is stored in each FIC section in the FIC segment buffer, so that the header that extracts is analyzed.Then, based on the result who analyzes, FIC section resolver exports the payload of each FIC section to FIC piece resolver.FIC piece resolver uses from the result of the analysis of FIC section resolver output recovering the FIC block data structure from FIC section payload, thereby analyzes the FIC block data structure that receives.Subsequently, FIC piece resolver extracts and is used for the signaling information that business is obtained.To export Service Manager 122 to from the signaling information that FIC piece resolver obtains.
Simultaneously, traffic signaling processor 123 comprises traffic signaling buffer and traffic signaling resolver.Here, 123 pairs of list area sections from the traffic signaling channel of UDP datagram processor 143 transmissions of traffic signaling manager are carried out buffer memory, thereby the list area section of buffer memory is analyzed and handled.Similarly, will also export Service Manager 122 to by traffic signaling manager 123 handled signaling informations.
Service Manager 122 utilizes the signaling information of collecting separately from FIC processor 121 and traffic signaling manager 123, is configured so that business is shone upon.Thereafter, Service Manager 122 utilizes the service guide of collecting from service guide (SG) processor 165 (SG), to draft program guide.Then, Service Manager 122 control baseband controllers 119 make that the user can be by receiving the mobile service that (or being provided) user asks with reference to professional mapping and business guide.In addition, Service Manager 122 also can be controlled receiving system, and making can be based on input program guide at least a portion display screen of user.
Business mapping and business guide that 124 storages of first memory cell are drafted by Service Manager 122.And based on the request from Service Manager 122 and EPG manager 171, first memory cell 124 is extracted required data, is sent to Service Manager 122 and/or EPG manager 171 then.
Baseband controller 119 receives known data location information and TPC data, thereby whether M/H frame time information, indication is existed the positional information, power control information etc. of the given data in the information of data set, the data set in correspondence be sent to each piece in the baseband processor 110 in the formation of selecting.After a while the TPC data will be described particularly.
Simultaneously, according to the present invention, transmitting system is used the RS frame according to coding unit (unit).In this article, the RS frame can be divided into main RS frame and auxilliary RS frame.Yet, according to the embodiment of the present invention, will divide main RS frame and auxilliary RS frame according to the significance level of corresponding data.
Main RS frame decoder 116 receives from the data of block decoder 115 outputs.Herein, according to the embodiment of the present invention, 116 mobile service data of having passed through Read-Solomon (RS) coding and/or Cyclic Redundancy Check coding from block decoder 115 receptions of main RS frame decoder.
In this article, main RS frame decoder 116 receives only mobile service data and does not receive the main business data.Main RS frame decoder 116 is carried out at the contrary of RS frame encoder (not shown) that is included in the digital broadcasting transmission system and is handled, and is corrected in the mistake that exists in the main RS frame thus.More particularly, main RS frame decoder 116 subsequently, is that unit carries out error correction with main RS frame by a plurality of data sets being formed in groups main RS frame.In other words, main RS frame decoder 116 aligns and is sent out the main RS frame that is used for the actual broadcast business and decodes.To export main RS frame buffer 131 to by the main RS frame that main RS frame decoder 116 is decoded.131 pairs of main RS frames of main RS frame buffer carry out buffer memory, dispose M/H TP with each behavior unit then.The M/H TP of main RS frame exports TP processor 133 to.
In addition, auxilliary RS frame decoder 117 receives from the data of block decoder 115 outputs.Herein, according to the embodiment of the present invention, 117 mobile service data of having passed through RS coding and/or CRC coding from block decoder 115 receptions of auxilliary RS frame decoder.Herein, auxilliary RS frame decoder 117 receives only mobile service data and does not receive the main business data.Auxilliary RS frame decoder 117 is carried out at the contrary of RS frame encoder (not shown) that is included in the digital broadcasting transmission system and is handled, and corrects the mistake that exists in the auxilliary RS frame thus.More particularly, auxilliary RS frame decoder 117 subsequently, is that unit carries out error correction with auxilliary RS frame by a plurality of data sets being formed in groups auxilliary RS frame.In other words, auxilliary RS frame decoder 117 aligns and is sent out the auxilliary RS frame that is used for mobile audio service data, mobile video business datum, guidance data etc. and decodes.To export auxilliary RS frame buffer 132 by the auxilliary RS frame that auxilliary RS frame decoder 117 is decoded to.Auxilliary 132 pairs of auxilliary RS frames of RS frame buffer carry out buffer memory, then with the configuration M/H TP of each behavior unit.The M/H TP of auxilliary RS frame exports TP processor 133 to.
TP processor 133 comprises TP buffer and TP resolver.133 pairs of TP processors carry out buffer memory from the M/H TP of main RS frame buffer 131 and 132 inputs of auxilliary RS frame buffer, extract and analyze each header of the M/H TP of buffer memory then, thereby recover IP datagram from each payload of the M/H TP of correspondence.Export the IP datagram of recovering to IP datagram processor 141.
IP datagram processor 141 comprises IP datagram buffer and IP datagram resolver.141 pairs of IP datagram that send from TP processor 133 of IP datagram processor are carried out buffer memory, extract and analyze the header of the IP datagram of buffer memory then, thereby recover UDP datagram from the payload of corresponding IP data newspaper.Export the UDP datagram that recovers to UDP datagram processor 143.
If UDP datagram is by scrambling, then the UDP datagram by 142 pairs of scramblings of descrambler carries out descrambling, and exports the UDP datagram of descrambling to UDP datagram processor 143.For example; when the UDP datagram among the IP datagram that receives during by scrambling; descrambler 142 carries out descrambling by waiting from service protection stream processor 146 input encryption keys to UDP datagram, and exports the UDP datagram of descrambling to UDP datagram processor 143.
UDP datagram processor 143 comprises UDP datagram buffer and UDP datagram resolver.143 pairs of UDP datagram processors carry out buffer memory from the UDP datagram that IP datagram processor 141 or descrambler 142 send, header to the UDP datagram of buffer memory extracts and analyzes then, thereby recovers the data that payload transmitted by the UDP datagram of correspondence.If institute's data recovered is the RTP/RTCP datagram, then data recovered is exported to RTP/RTCP datagram processor 144.If institute's data recovered also is the NTP datagram, then data recovered is exported to NTP datagram processor 145.In addition, if institute's data recovered is a service protection stream, then data recovered is exported to service protection stream processor 146.And,, then data recovered is exported to ALC/LCT stream processor 148 if institute's data recovered is an ALC/LCT stream.
RTP/RTCP datagram processor 144 comprises RTP/RTCP datagram buffer and RTP/RTCP datagram resolver.RTP/RTCP datagram processor 144 buffer memorys are from the data of the RTP/RTCP structure of UDP datagram processor 143 outputs, and the extracting data A/V from buffer memory flows then, thereby exports the A/V stream that extracts to A/V decoder 161.
A/V decoder 161 utilizes the Voice ﹠ Video decoding algorithm respectively to decoding from the audio and video stream of RTP/RTCP datagram processor 144 outputs.The Voice ﹠ Video data of decoding are exported to and present manager 170.Herein, can be with in AC-3 decoding algorithm, MPEG 2 audio decoder algorithms, MPEG 4 audio decoder algorithms, AAC decoding algorithm, AAC+ decoding algorithm, HE AAC decoding algorithm, AAC SBR decoding algorithm, MPEG surround decoder algorithm and the BSAC decoding algorithm at least one as the audio decoder algorithm, and can be with MPEG 2 video decode algorithms, MPEG 4 video decode algorithms, H.264 at least one in decoding algorithm, SVC decoding algorithm and the VC-1 decoding algorithm be as the video decode algorithm.
NTP datagram processor 145 comprises NTP datagram buffer and NTP datagram resolver.NTP datagram processor 145 buffer memorys have the data of NTP structure, and these data are from 143 outputs of UDP datagram processor.Then, NTP datagram processor 145 is from the extracting data NTP stream of buffer memory.Export the NTP stream that extracts to A/V decoder 161 to decode thereafter.
Service protection stream processor 146 can also comprise the service protection stream damper.Herein, service protection stream processor 146 buffer memorys are for carrying out the data of service protection specified (or required), and these data are from 143 outputs of UDP datagram processor.Subsequently, service protection stream processor 146 carries out the required information of descrambling from the extracting data of being extracted.Carry out the required information of descrambling and comprise key value, for example SKTM and LKTM.The information stores that will be used for descrambling is in second memory cell 147, and when needs, the information that will be used for descrambling exports descrambler 142 to.
ALC/LCT stream processor 148 comprises ALC/LCT stream damper and ALC/LCT stream analyzer.And ALC/LCT stream processor 148 buffer memorys have the data of ALC/LCT structure, and these data are from 143 outputs of UDP datagram processor.Then, 148 analyses of ALC/LCT stream processor are from the header and the header extension of the ALC/LCT session of data in buffer.Based on the header of ALC/LCT session and the analysis result of header extension,, export the data of correspondence to XML resolver 150 when data that just are transferred into the ALC/LCT session during corresponding to the XML structure.Alternatively, when data that just are transferred into the ALC/LCT session during, export the data of correspondence to file decoder 162 corresponding to file structure.At this moment, when the data that just are transferred into the ALC/LCT session be compression the time, the data by 149 pairs of compressions of decompressor decompress, thereby export XML resolver 150 or file decoder 162 to.
150 pairs of XML data that transmit by the ALC/LCT session of XML resolver are analyzed.Then, when the data of analyzing with to based on the professional data designated of file when corresponding, XML resolver 150 exports the data of correspondence to FDT processor 151.On the other hand, if the data of analyzing with corresponding to the business guide data designated, XML resolver 150 exports the data of correspondence to SG processor 165.The file description table of FLUTE agreement is analyzed and handled to FDT processor 151, and it transmits by the ALC/LCT session with the XML structure.
SG processor 165 is collected and is analyzed the business guide data designated, and these data transmit with the XML structure, thereby exports the data of analyzing to Service Manager 122.
162 pairs of file decoder have file structure and decode by the data that the ALC/LCT session sends, thus decoded data are sent to middleware engine 164 or with decoded storage in the 3rd memory cell 163.Herein, the application of middleware engine 164 instrument of interpretation structured datas (that is, using) and execution explanation.Thereafter, can be by presenting the output device that manager 170 exports application to display screen for example or loud speaker.According to an embodiment of the invention, middleware engine 164 is corresponding to the middleware engine based on JAVA.
Based on user input, EPG manager 171 receives the EPG data by Service Manager 122 or by SG processor 165, to display format, presents manager 170 thereby data converted exported to the EPG data transaction that will receive.
Application manager 172 is carried out and the relevant overall management of processing that waits the application data that sends according to Format Object, file format.In addition, based on the user instruction by UI manager 173 input, operation control 100 control Service Manager 122, EPG manager 171, application managers 172 and present in the manager 170 at least one are so that can carry out the function of user's request.UI manager 173 is transferred to operation control 100 by UI with user's input.
At last, present manager 170 by loud speaker and/or display screen will be from the voice data of A/V decoder 161 outputs and video data and the EPG data of exporting from EPG manager 171 at least one provide to the user.
Data format structures
Simultaneously, the data structure of using in mobile broadcast technology according to the embodiment of the present invention can comprise data burst structure and RS frame structure, will be described in greater detail now.
Fig. 2 illustration according to the exemplary configurations of data set of the present invention.Fig. 2 shows an example that the data set according to data structure of the present invention is divided into 10 M/H pieces (that is, M/H piece 1 (B1) is to M/H piece 10 (B10)).In this example, each M/H block length is 16 sections.With reference to Fig. 2, only the RS parity data is distributed to M/H piece 1 (B1) before 5 sections and M/H piece 10 (B10) 5 sections part afterwards.Regional A at data set does not comprise the RS parity data in D.More particularly, when hypothesis is divided into regional A, B, C and D with a data set, can be according to the characteristic of each M/H piece in this data set and each M/H piece is included in from regional A to region D any one.
In this article, data set is divided into is used to a plurality of zones of different purposes.More particularly, compare, can think that the zone of not disturbing or having main business data of extremely low annoyance level has (or stronger) receptivity of stronger resistance with zone with high levels of interference.In addition, when using the system that in data set, inserts and send given data (wherein, given data based on the agreement between transmitting system and the receiving system and known), and when the longer given data will be in mobile service data periodically inserted in succession, given data with predetermined length periodically can be inserted in the zone that is not subjected to the interference of main business data (that is, not being mixed with the zone of main business data).Yet,, and also be difficult in succession longer given data is inserted into the zone that disturbed by the main business data because the interference of main business data is difficult to given data periodically is inserted into the zone that disturbed by the main business data.
With reference to Fig. 2, M/H piece 4 (B4) to M/H piece 7 (B7) corresponding to the zone that not disturbed by the main business data.M/H piece 4 (B4) in the data set shown in Figure 2 arrives M/H piece 7 (B7) corresponding to the zone that does not have appearance from the interference of main business data.In this example, all inserted longer given data sequence in the initial sum ending of each M/H piece.In specification of the present invention, will comprise that M/H piece 4 (B4) is " regional A (=B4+B5+B6+B7) " to the region representation of M/H piece 7 (B7).As mentioned above, when this data set comprised the regional A of the longer given data sequence with the initial sum ending that is inserted in each M/H piece, receiving system can be carried out equilibrium from the channel information that this given data obtains by using.Therefore, can obtain (or obtaining) the strongest equalization performance in the zone from regional A to region D.
In the example of data set shown in Figure 2, M/H piece 3 (B3) and M/H piece 8 (B8) are corresponding to the zone from the interference of main business data that has seldom.In this article, an end at each M/H piece B3 and B8 inserts longer given data sequence.More particularly, owing to, insert longer given data sequence in the ending of M/H piece 3 (B3) from the interference of main business data, and in initial another longer given data sequence of having inserted of M/H piece 8 (B8).In the present invention, will be the region representation that comprises M/H piece 3 (B3) and M/H piece 8 (B8) " area B (=B3+B8) ".As mentioned above, when this data set comprised the area B of the longer given data sequence with the end (initial or ending) that only is inserted in each M/H piece, receiving system can be carried out equilibrium from the channel information that this given data obtains by using.Therefore, compare, can obtain (or obtaining) stronger equalization performance with zone C/D.
With reference to Fig. 2, M/H piece 2 (B2) and M/H piece 9 (B9) are corresponding to compare the zone with stronger interference from the main business data with area B.Arbitrary end at M/H piece 2 (B2) and M/H piece 9 (B9) all can not insert longer given data sequence.In this article, the zone that will comprise M/H piece (B2) and M/H piece 9 (B9) is called " zone C (=B2+B9) ".At last, in example shown in Figure 2, M/H piece 1 (B1) and M/H piece 10 (B10) are corresponding to compare the zone with stronger interference from the main business data with zone C.Similarly, can not insert longer given data sequence at arbitrary end of M/H piece 1 (B1) and M/H piece 10 (B10).In this article, the zone that will comprise M/H piece 1 (B1) and M/H piece 10 (B10) is called " region D (=B1+B10) ".Because it is farther that zone C/D and this given data sequence are separated by, therefore when channel circumstance stands frequent and unexpected variation, can make the receptivity deterioration of zone C/D.
In addition, this data set signaling information zone of signaling information that comprised appointment (or distribute).In the present invention, the signaling information zone can be till first section to second section the part of 4M/H piece (B4).According to an embodiment of the invention, the signaling information zone that is used to insert signaling information can be till first section to second section the part of 4M/H piece (B4).More particularly, with the 4M/H piece (B4) in each data set 276 (=207+69) individual byte is appointed as the signaling information zone.In other words, the signaling information zone is made up of 207 bytes of the 1st section of 4M/H piece (B4) and preceding 69 bytes of the 2nd section.The 1st section of 4M/H piece (B4) corresponding to the VSB field the 17th section or the 173rd section.
In this article, can discern the signaling data that sends by the signaling information zone according to two kinds of dissimilar signaling channel datas (that is, transmission parameter channel (TPC) data and fast information channel in dab receiver (FIC) data).
And the TPC data comprise the parameter of mainly using in physical layer block.And,, can be that unit visits the TPC data in receiving system with the time slot owing to TPC data non-interleaved sends.The FIC data are provided obtain so that receiving system can be carried out fastext.In this article, the FIC data comprise layer information of striding between physical layer and the upper strata.With the subframe is that unit interweaves then with its transmission to the FIC data.
For example, as shown in Figure 2, when data set comprised 6 given data sequences, the signaling information zone was between the first given data sequence and the second given data sequence.More particularly, in last 2 sections of 3M/H piece (B3), insert the first given data sequence, and in the 2nd and the 3rd section of 4M/H piece (B4), insert the second given data sequence.In addition, the the 4th, the 5th, the 6th and 7M/H piece (B4, B5, B6 and B7) in each back 2 sections in insert the 3rd given data sequence to the 6 given data sequences respectively.16 sections of being separated by between the 1st given data sequence and the 3rd given data sequence to the 6 given data sequences.
Fig. 3 illustration according to the RS frame of an embodiment of the invention.
Receiving system is being switched under the condition of time slicing pattern, receiving the RS frame at each M/H frame.Each RS frame comprises the IP stream of each mobile service data or signaling data, and professional mapping table (SMT) sector data may reside in whole RS frames.The SMT sector data can be the IP stream type, or different data types.The RS frame data are dispensed to and the corresponding zone of a plurality of data sets, and are sent to receiving system.
RS frame according to the embodiment of the present invention is made up of at least one M/H transmission package (TP).In this article, M/H TP comprises M/H header and M/H payload.
The M/H payload can comprise mobile service data and signaling data.More particularly, the M/H payload can include only mobile service data, maybe can include only signaling data, or can not only comprise mobile service data but also comprise signaling data.According to the embodiment of the present invention, the M/H header can identify (or differentiation) to the data type that is included in the M/H payload.More particularly, when M/H TP comprised a M/H header, this represented that this M/H payload includes only signaling data.In addition, when M/H TP comprised the 2nd M/H header, this represented that this M/H payload not only comprises signaling data but also comprise mobile service data.At last, when M/H TP comprised the 3rd M/H header, this represented that this M/H payload includes only mobile service data.In the example depicted in fig. 3, the RS frame IP datagram (IP datagram 2 and IP datagram 3) that is assigned the IP datagram (IP datagram 1) that is used for SMT and is used for two kinds of types of service.
Data transmission structure
Fig. 4 illustration according to the structure that is used to send and receive the M/H frame of mobile service data of the present invention.In the example depicted in fig. 4, a M/H frame is made up of 5 subframes, and wherein each subframe comprises 16 time slots.In this case, M/H frame according to the present invention comprises 5 subframes and 80 time slots.In addition, in the bag grade, a time slot is made of 156 packets (that is, transport stream packets), and in symbol level, a time slot is made of 156 data segments.Here, the size of a time slot is corresponding to VSB field half (1/2).More particularly, because the packet of one 207 byte has the data volume identical with data segment, therefore, the packet before being interleaved also can be used as data segment.Herein, two VSB fields are carried out in groups to form the VSB frame.
Fig. 5 illustration the exemplary configurations of VSB frame, wherein, a VSB frame is made up of 2 VSB fields (that is, odd field and even field).In this article, each VSB field all comprises field synchronization segments and 312 data segments.Time slot is corresponding to mobile service data and main business data are carried out multiplexing basic time unit.
In this article, a time slot or can comprise mobile service data perhaps can only be made of the main business data.If preceding 118 packets in the time slot are corresponding to data set, then all the other 38 data are bundled into and are the main business packet.In another example, when not having data set in time slot, corresponding time slot is made of 156 main business packets.
Simultaneously, the mobile service data in the RS frame can be assigned to the Zone Full A/B/C/D in the corresponding data sets, perhaps be assigned at least one among the regional A/B/C/D.In embodiments of the present invention, the mobile service data in the RS frame can be assigned to Zone Full A/B/C/D, perhaps be assigned among regional A/B and the zone C/D at least one.Distribute mobile service data if press latter event (that is, among regional A/B and the zone C/D), the RS frame that then is assigned to the regional A/B in the corresponding data group differs from one another with the RS frame that is assigned to the zone C/D in the corresponding data group.
According to the embodiment of the present invention, for simplicity, the RS frame that is assigned to the regional A/B in the corresponding data group is called " main RS frame ", the RS frame that is assigned to the zone C/D in the corresponding data group is called " auxilliary RS frame ".In addition, main RS frame and auxilliary RS frame form (or formation) formation.More particularly, when the Zone Full A/B/C/D that the mobile service data in the RS frame is assigned in the corresponding data sets, a formation sends a RS frame.On the contrary, when the mobile service data in the RS frame is assigned among regional A/B and the zone C/D any the time, a formation can send maximum 2 RS frames.More particularly, whether RS frame pattern indication formation sends a RS frame, or whether formation sends two RS frames.This RS frame pattern is sent as the TPC data.Below, table 1 shows an example of RS frame pattern.
[table 1]
Figure BDA0000080271690000181
Table 1 illustration distribute the example of two bits with expression RS frame pattern.For example, with reference to table 1, when RS frame pattern value equaled ' 00 ', formation of this expression sent a RS frame.And when RS frame pattern value equaled ' 01 ', formation of this expression sent two RS frames, that is, and and main RS frame and auxilliary RS frame.More particularly, when RS frame pattern value equals ' 01 ', will be assigned to the regional A/B of corresponding data group at the data of the main RS frame of regional A/B and send.Similarly, will be assigned to the zone C/D of corresponding data group at the data of the auxilliary RS frame of zone C/D and send.
As described in the appointment of data set, also formation is designated as in subframe and separates each other as far as possible far.Thereby receiving system can be carried out rapidly and response effectively contingent any burst error in the subframe.In addition, the method for specified queue can be applied to whole M/H frames in the same manner, or difference be applied to each M/H frame.According to the embodiment of the present invention, can be at each M/H frame difference ground specified queue, and at the specified queue in the same manner of the whole subframes in the M/H frame.More particularly, the M/H frame structure can be that unit changes with the M/H frame.Therefore, can be more frequently and adjust assemblage speed (ensemble rate) neatly.
That is, used the notion of M/H assemblage in embodiments of the present invention, thus the professional set (or group) of definition.Each M/H assemblage carries identical QoS, and with identical FEC sign indicating number it is encoded.And each M/H assemblage has identical unique identifier (that is assemblage ID) and corresponding with continuous RS frame.
Fig. 6 illustration data transmission structure according to the embodiment of the present invention in physical layer.More particularly, Fig. 6 shows an example of the FIC data that are included in each data set and are sent out.As mentioned above, about 0.968 second M/H frame is divided into 5 subframes, wherein, is present in each subframe with the mode of the corresponding data set of a plurality of assemblages with combination.And, be that unit pair interweaves with the corresponding data set of each assemblage with the M/H frame, so that the RS frame that belongs to an assemblage is configured.In Fig. 6, in each subframe, there are two kinds of assemblages (wherein, NoG=4 and NoG=3).In addition, the predetermined part (for example, 37 byte/data sets) of each data set is used for transmitting separately with RS frame data channel separation ground the FIC data of process coding.The FIC zone that is dispensed to each data set comprises a FIC section.Herein, be that unit is to interweaving to each FIC section with the subframe.For example, RS coding and SCCC encoding process are applied to the RS frame data, and RS coding and PCCC encoding process are applied to the FIC data.And, identical with the FIC data, RS coding and PCCC encoding process are applied to the TPC data.More particularly, (187+P, 187)-RS encoding process is applied to the RS frame data, (51,37)-RS encoding process is applied to the FIC data, and (18,10)-RS encoding process is applied to TPC.Herein, P is a parity byte quantity.
The classification signaling structure
Fig. 7 illustration according to the classification signaling structure of an embodiment of the invention.As shown in Figure 7, mobile broadcast technology according to the embodiment of the present invention adopts the Signalling method that utilizes FIC and professional mapping table (SMT).In specification of the present invention, this signaling structure is called the classification signaling structure.More particularly, Fig. 7 illustration in IP level mobile service signaling channel, provide and carry out the classification signaling structure that business is obtained required data by FIC piece and professional mapping table (SMT).As shown in Figure 7, the FIC piece utilizes its quick feature, so that the mapping relations between business and the assemblage are sent to receiving system.More particularly, the FIC piece is located the assemblage that (or finding) can transmit the required service of receiving system apace, thereby provides the signaling data that can make receiving system promptly receive the RS frame of each assemblage to receiving system.
Fast information channel in dab receiver (FIC)
For the business that quicker (or more promptly) accessing is being broadcasted at present, receiving system according to the present invention has adopted fast information channel in dab receiver (FIC).
More particularly, 121 pairs of FIC pieces from the FIC section of the FIC processor of Fig. 1 are configured.Then, after resolving the FIC piece, the result that FIC processor 121 will be resolved outputs to Service Manager 122.
Fig. 8 illustration the syntactic structure of shining upon the FIC piece of the relation between mobile service and the assemblage by FIC.Herein, the FIC piece comprises FIC piece header and FIC piece payload.
Fig. 9 illustration according to the syntactic structure of the FIC piece header of an embodiment of the invention.
Herein, FIC piece header changes with the master agreement version of signal indication non-back compatible in the FIC of correspondence piece, and changes with the secondary protocol version of signal indication back compatible.In addition, FIC piece header also can be changed the length of the expansion of the length of expansion of length, assemblage circulation header of the expansion of the FIC piece header that produces and mobile service circulation by secondary protocol version with signal indication.
According to an embodiment of the invention, the receiver (perhaps receiving system) that can adopt corresponding secondary protocol version to change can be handled corresponding extended field, and can not adopt the receiver of the tradition (routine) of corresponding secondary protocol version change to skip corresponding extended field by utilizing each corresponding length information.For example, can accept in receiving system under the situation of corresponding secondary protocol version change, the direction that provides in the extended field of correspondence can be known.In addition, receiving system can be come executable operations according to the direction that provides in the extended field of correspondence.
According to an embodiment of the invention, change by the secondary protocol version of carrying out in the FIC piece in ending, assemblage circulation header and the mobile service circulation place insertion added field of the FIC piece header that is included in last secondary protocol version FIC piece respectively.According to the embodiment of the present invention, under what its situation in office, perhaps in the time can not representing the length of (or indication) added field by each extension length in the FIC piece header, perhaps when the specific fields in the FIC piece payload is lost (maybe can't find), perhaps when the definition of the bit number of distributing to corresponding field or corresponding field changes (or change), upgrade the master agreement version of corresponding FIC piece.
And, whether FIC piece header has carried assemblage in the current M/H frame and the map information between the mobile service with the data of the FIC piece payload of signal indication correspondence, and perhaps whether the data of Dui Ying FIC piece payload have carried assemblage in next M/H frame and the map information between the mobile service.In addition, FIC piece header is also with the quantity of signal indication in order to the quantity of the transport stream ID of the mobile service that sends current FIC piece and the assemblage that mobile service was sent by correspondence.
Therefore, for this reason, FIC piece header can comprise FIC_major_protocol_version field, FIC_minor_protocol_version field, FIC_chunk_header_extension_length field, ensemble_loop_header_extension_length field, M/H_service_loop_extension_length field, current_next_indicator field, transport_stream_id field and num_ensembles field.
The FIC_major_protocol_version field is corresponding to key plate other 2 bit unsigned integer field at the corresponding levels of expression FIC piece grammer.Key plate other change at the corresponding levels will be indicated non-other change of back compatible level.When the FIC_major_protocol_version field is upgraded, can handle the receiver of the previous key plate tradition (routine) originally of FIC piece agreement and will avoid handling the FIC piece.
The FIC_minor_protocol_version field is corresponding to other 3 bit unsigned integer field of subedition level of expression FIC piece grammer.When this rank of hypothesis key plate keeps identical, other change of subedition level will be indicated other change of back compatible level.More particularly, when upgrading the FIC_minor_protocol_version field, can handle the receiver of the tradition (routine) of identical key plate FIC piece agreement originally and can handle a part of FIC piece.
The FIC_chunk_header_extension_length field is corresponding to 3 bit unsigned integer fields of the length of identification FIC piece header extension byte, and the secondary protocol version of the FIC piece by correspondence upgrades and generates this field.Herein, with ending place of extended byte additional (or increasing) at the FIC of correspondence piece header.
The ensemble_loop_header_extension_length field is corresponding to 3 bit unsigned integer fields of the length of identification assemblage header extension byte, and the secondary protocol version of the FIC piece by correspondence upgrades and generates this field.Herein, with ending place of extended byte additional (or increasing) at the assemblage circulation header of correspondence.
And the M/H_service_loop_extension_length field is corresponding to 4 bit unsigned integer fields of the length of identification assemblage header extension byte, and the secondary protocol version renewal that circulates by the M/H service generates this field.Herein, with ending place of extended byte additional (or increasing) in the M/H of correspondence service circulation.
The current_next_indicator field is corresponding to 1 bit indicator, and wherein, when being set to " 1 ", the FIC piece of its indication correspondence is current to be applicable.Alternatively, when the current_next_indicator field is set to " 0 ", the corresponding FIC piece of current_next_indicator field indication will be applied to next M/H frame.Herein, when the current_next_indicator field is set to " 0 ", the nearest version of the FIC piece that transmits with the current_next_indicator field that is set to " 1 " will be current applicable.More particularly, when the current_next_indicator field was set to " 1 ", the corresponding FIC piece of this indication sent the signaling data of current M/H frame.In addition, when the current_next_indicator field was set to " 0 ", the corresponding FIC piece of this indication sent the signaling data of next M/H frame.When reconfiguring, wherein, assemblage in the current M/H frame and the map information between the mobile service are different from interior assemblage of next M/H frame and the map information between the mobile service, M/H frame before reconfiguring is called current M/H frame, and the M/H frame after will reconfiguring is called next M/H frame.
The transport_stream_id field is corresponding to 16 bit unsigned integer fields, and it serves as the mark that is used to discern corresponding M/H broadcasting.The value of corresponding transport_stream_id field will equal to be included in the value of the transport_stream_id field in the Program Association Table (PAT:program association table) of mpeg 2 transport stream of main ATSC broadcasting.
The num_ensembles field is corresponding to 8 bit unsigned integer fields, and it indicates the quantity of the M/H assemblage that is carried by the corresponding physical transmission channel.
Figure 10 illustration the exemplary change of protocol version when using FIC piece grammer and protocol version structure according to the embodiment of the present invention.
Structure shown in Figure 10 comprises 2 assemblages (that is, assemblage 0 and assemblage 1)., send two mobile services herein, and send a mobile service by assemblage 1 by assemblage 0.At this moment, when the secondary protocol version of FIC piece changed, the value of FIC_minor_protocol_version field increased, and indicates this increase.And, come with signal indication by the extended byte of the FIC piece header that secondary protocol version was increased of correspondence, the extended byte of assemblage circulation header and the extended byte length information separately of mobile service circulation by FIC_chunk_header_extension_length field, ensemble_loop_header_extension_length field, the M/H_service_loop_extension_length field of FIC piece header respectively.More particularly, represent each length information, make the traditional receiver that to continue to use corresponding secondary protocol version change can skip corresponding extended byte with signal.
In the situation of Figure 10, the value of the FIC_minor_protocol_version field of FIC piece changes to " 001 " from " 000 ".And, FIC_chunk_header_extension_length field, ensemble_loop_header_extension_length field and M/H_service_loop_extension_length field are added (or additional) FIC piece header to the secondary protocol version that changes.At this moment, when 1 byte of FIC piece header extension, the FIC_chunk_header_extension_length field is marked as " 001 ".In this case, the extended field (that is FIC_Chunk_header_extension_bytes field) of 1 byte is added into the end of FIC piece header.And traditional receiver is skipped the extended field of 1 byte at the place, end that is increased in FIC piece header, and does not handle corresponding extended field.
In addition, when 2 bytes of assemblage circulation header extension in the FIC piece, the FIC_chunk_header_extension_length field is marked as " 010 ".In this case, the extended field (that is Ensemble_loop_header_extension_bytes field) with 2 bytes is added into the end of assemblage 0 circulation header and the end of assemblage 1 circulation header respectively.And traditional receiver is skipped the extended field of 2 bytes at the place, end of the end place that is increased in assemblage 0 circulation header respectively and assemblage 1 circulation header, and does not handle the extended field of 2 bytes of correspondence.
In addition, when 1 byte of mobile service cyclic extensions of FIC piece, the M/H_service_loop_extension_length field is marked as " 001 ".In this case, the extended field (that is M/H_service_loop_extension_bytes field) of 1 byte is added into the place, end of the place, end of 2 mobile services circulations by assemblage 0 cyclic transfer and 1 mobile service circulation by assemblage 1 cyclic transfer respectively.And, traditional receiver is skipped the extended field of 1 byte at the place, end of the place, end that is added into 2 mobile services circulations by assemblage 0 cyclic transfer respectively and 1 mobile service circulation by assemblage 1 cyclic transfer, and does not handle the extended field of 1 corresponding byte.
Figure 11 illustration when the secondary protocol version information of as shown in figure 10 FIC piece changes, handle the example process of FIC piece.When the FIC_minor_protocol_version field change, the receiver of tradition (or, routine) (that is, the secondary protocol version in the FIC piece that can not continue to use in correspondence change receiver) is handled the field of separating from extended field.Thereafter, traditional receiver uses FIC_chunk_header_extension_length field, ensemble_loop_header_extension_length field, M/H_service_loop_extension_length field, skipping corresponding extended field, and do not handle corresponding field.When receiving system that the secondary protocol version that uses the correspondence can continue to use the FIC piece changes, each length field is used to handle even corresponding extended field.
Figure 12 illustration according to the example syntax structure of the FIC piece payload of an embodiment of the invention.For with the FIC piece header of Fig. 9 in corresponding each assemblage of num_ensembles field, FIC piece payload comprises the configuration information of each assemblage and about the information of the mobile service that sends by each assemblage.FIC piece payload comprises the mobile service circulation under assemblage circulation and the circulation of this assemblage.FIC piece payload makes receiver can determine (or expectation) mobile service of the request that sends by which assemblage.(carrying out this processing) by the mapping between ensemble_id field and the M/H_service_id field.Thereby receiver can receive the RS frame of the assemblage that belongs to corresponding.
For this reason, the assemblage circulation of FIC piece payload can comprise ensemble_id field, ensemble_structure_major_version field, ensemble_structure_minor_version field, SLT_ensemble_indicator field, GAT_ensemble_indicator field, M/H_service_configuration_version field and num_M/H_services field, and they repeat number of times many as the num_ensembles field value jointly.The mobile service circulation can comprise multi_ensemble_service field, M/H_service_status field and SP_indicator field, and they repeat number of times many as the num_M/H_services field value jointly.
The ensemble_id field is corresponding to 8 bit unsigned integer fields, and it indicates unique identifier of corresponding assemblage.For example, can be to the value of ensemble_id field distribution " 0x00 " to the scope of " 0x7F ".The ensemble_id field is carried out in groups (or related) with mobile service with each assemblage.Herein, preferably, the parade_id field of carrying (or send) by the TPC data obtains the value of ensemble_id field.If send corresponding assemblage by main RS frame, then highest significant position is set to " 0 ", and with the parade_id field value of remaining low order as corresponding queues.Simultaneously, if send corresponding assemblage by auxilliary RS frame, then highest significant position is set to " 0 ", and with the parade_id field value of remaining low order as corresponding queues.
The ensemble_major_protocol_version field is corresponding to 2 bit unsigned integer fields, and it represents the other version of main (Dui Ying RS frame structure and mobile service structure particularly) of corresponding assemblage structure.Herein, the change of master agreement version will be indicated non-other change of back compatible level.
The ensemble_minor_protocol_version field is corresponding to 3 bit unsigned integer fields, and it represents the secondary version (each RS frame structure and each M/H traffic signaling channel particularly) of corresponding assemblage structure.Suppose that this rank of key plate remains unchanged, then secondary other change of protocol version level will be indicated other change of back compatible level.Can from FIC piece payload, omit ensemble_structure_major_version field and ensemble_structure_minor_version field herein.
The SLT_ensemble_indicator field is corresponding to 1 bit indicator, wherein, and when being set to " 1 ", with indication bearer service label list (SLT) in the M/H traffic signaling channel of the assemblage of correspondence.
The GAT_ensemble_indicator field wherein, when being set to " 1 ", is carried indication of guide access list (GAT) corresponding to 1 bit indicator in the signaling flow of the assemblage of correspondence.
The M/H_service_configuration_version field is corresponding to 5 bit fields, and it indicates the version number of each M/H traffic signaling channel of corresponding M/H assemblage.The value of M/H_service_configuration_version field is " to 32 deliverys ", and any table that is carried in the M/H traffic signaling channel of the assemblage of correspondence is when changing, and the value of this field is incremented (or increase) with 1.
The num_M/H_services field is corresponding to 8 bit unsigned integer fields, the quantity of the M/H business that the M/H assemblage of its expression by correspondence carried.For example, when the secondary protocol version of FIC piece changes, and if extended field be added into assemblage circulation header, then after the num_M/H_services field, increase extended field.
For example, when the secondary protocol version in the FIC piece header changes, and when extended field being added into assemblage circulation header, extended field is increased in and follows closely after the num_M/H_services field.According to another implementation of the invention, if the num_M/H_services field is included in the mobile service circulation, then the extended field that will will increase in assemblage circulates header is increased in and follows closely after the M/H_service_configuration_version field.
The M/H_service_id field of mobile service circulation is corresponding to 16 bit unsigned integer fields, and it discerns corresponding M/H business.The value of M/H_service_id field (or, number) in mobile (M/H) broadcasting, be unique.When the M/H business has composition in a plurality of M/H assemblages, to be regarded as being used for the independent business of signaling with the set of professional corresponding IP stream in each assemblage, exception be that the clauses and subclauses at corresponding service all have identical M/H_service_id field value in FIC.Thereby identical M/H_service_id field value can appear at more than in the num_ensembles circulation.And therefore, the M/H_service_id field value will be represented whole combination services, thereby keep the uniqueness of M/H_service_id field value.
The field that the multi_ensemble_service field is calculated corresponding to 2 bits, whether its identification is by carrying corresponding M/H business more than a M/H assemblage.And whether multi_ensemble_service field identification only uses a part of M/H business that the M/H assemblage by correspondence is carried on purpose to express the M/H business.
The M/H_service_status field is corresponding to 2 bit enumerated field, and it discerns the state of corresponding M/H business.For example, the corresponding M/H business of the highest significant position of M/H_service_status field indication is (when being set to " 1 ") or nonactivated (when being set to " 0 ") activated.In addition, whether the corresponding M/H business of least significant bit indication is (when being set to " 1 ") of hiding or does not hide (when being set to " 0 ").The SP_indicator field is corresponding to 1 bit field, and wherein, when being set to " 1 ", whether its indicating services protection is applied to the M/H business that provides corresponding important presents at least one required composition.
For example, when the secondary protocol version of FIC piece changes, and if extended field be added into the mobile service circulation, then extended field is added into after the SP_indicator field.
And FIC piece payload can comprise FIC_chunk_tuffing () field.For the border that makes the FIC piece with keep aliging at last the FIC section boundary that belongs among the FIC section of FIC piece, the filling (stuffing) of FIC_chunk_stuffing () field may reside in the FIC piece.Determine the length of filling by remaining how many spaces after before filling, resolving whole FIC piece payload.
At this moment, as shown in figure 13, transmitting system (not shown) according to the present invention is divided into a plurality of FIC sections with the FIC piece, exports the FIC section of dividing to receiving system thereby be unit with the FIC section.The size of each FIC section is 37 bytes, and each FIC section comprises the FIC section header of 2 bytes and the FIC section payload of 35 bytes.More particularly, shown in Figure 13 (a), the FIC piece comprises FIC piece header and FIC piece payload, shown in Figure 13 (b), is that unit carries out segmentation to the FIC piece with 35 bytes.And, shown in Figure 13 (c), the FIC section is configured to increase in each section front of 35 byte unit the FIC section header of 2 bytes.
According to an embodiment of the invention, the length of FIC piece payload is variable.Herein, the quantity and the quantity that is included in the mobile service in each assemblage of the assemblage that is sent by the corresponding physical transmission channel is depended in the variation of the length of FIC piece.
And FIC piece payload can comprise padding data.In this case, according to the embodiment of the present invention, padding data is used for the FIC piece and aims at last the FIC section boundary that belongs among the FIC section of FIC piece.Therefore, minimize, can reduce the unnecessary waste of FIC section by length with padding data.
Herein, by utilizing following equation 1 can calculate the quantity of the padding data that in the FIC piece, inserts.
Equation 1
Quantity=the 35-j of padding data byte
J=(5+ is inserted in the quantity of the signaling data byte in the FIC piece payload) is to 35 deliverys
For example, when the header of 5 bytes that increased in the FIC piece equals 205 bytes with the total length that is inserted in the signaling data of the payload in the FIC piece, because j equals 30 in equation 1, so the payload of FIC piece can comprise the padding data of 5 bytes.And, comprise that the length of the FIC piece payload of padding data equals 210 bytes., FIC piece be divided into 6 FIC sections, then with its transmission thereafter.Herein, segment number is sequentially distributed to from each section of 6 FIC sections of FIC piece division.
In addition, as shown in figure 14, the present invention can be sent to single subframe with the FIC section of dividing from single FIC piece, perhaps the FIC section of dividing can be sent to a plurality of subframes.If a plurality of subframes are divided and be sent to the situation of back as shown in figure 14 with the FIC piece like that, even when the quantity of the data that send by the FIC piece during greater than the quantity of the FIC section that sends by single subframe (this situation corresponding to when execution is a plurality of when having low-down bit rate professional), required signaling data can all send by the FIC piece.
Figure 14 illustration when the TNoG of corresponding mobile broadcast equals " 6 ", an example of the data of the FIC piece that sends by 4 FIC sections.
More particularly, Figure 14 shows an example of the FIC piece that has repeatedly been sent twice.With reference to Figure 14, all FIC sections of being divided from the FIC piece send by 2 subframes (subframe 1 and subframe 2), and only send by one (subframe 1) of 2 subframes from all FIC sections that the FIC piece is divided.More particularly, the present invention points out and can send a plurality of FIC pieces by single subframe.In Figure 14, the content of 2 FIC pieces can be mutually the same or can be differed from one another.
Herein, the number table of indicated FIC section is shown in the numbering of the FIC section in each FIC piece in Figure 14, is not the FIC segment number in each subframe.Thereby, can eliminate the subordinate relation between FIC piece and the subframe, thereby reduce the excessive waste of FIC section.
In addition, the present invention can increase empty FIC section.No matter the transmission of the repetition of FIC piece, and when in the M/H of correspondence frame, needing to fill, use empty FIC section to handle remaining FIC section.For example, suppose that TNoG equals " 3 " and the FIC piece is divided into 2 FIC sections.When repeatedly sending the FIC piece, only send two FIC sections herein, by the subframe (for example, being positioned at the subframe of last tagmeme) in 5 subframes with time sequencing by 5 subframes in the single M/H frame.In this case, an empty FIC section is distributed to corresponding subframe, thereby send.More particularly, this sky FIC section is used for the border of FIC piece and the border of M/H frame are aimed at.At this moment, because empty FIC section is not the FIC section of dividing from the FIC piece, so the FIC segment number is not distributed to sky FIC section.
In the present invention, when single FIC piece is divided into a plurality of FIC section, and the FIC section after dividing is included in each data set of at least one subframe in the M/H frame when transmitting, the FIC section of the opposite order assignment correspondence that begins with the last subframe in the M/H frame of correspondence.According to the embodiment of the present invention, if there is empty FIC section, then empty FIC section is arranged in the subframe of M/H frame, sends so corresponding empty FIC section can be used as last (or final) section.
Figure 15 illustration when the TNoG of corresponding mobile broadcast equals " 6 ", send an example of the data of FIC pieces by 8 FIC sections.In this case, the data volume that sends by the FIC piece is greater than the quantity of the FIC section by single subframe transmission.As shown in figure 15,, can send all required signaling datas herein, by single FIC piece owing to send the FIC section of being divided from the FIC piece by 2 subframes.And in this case, the numbering of distributing to each FIC section is corresponding to the numbering that is included in each FIC section in the FIC piece.More particularly, even when the quantity of FIC blocks of data during greater than the quantity of the FIC segment data that sends by single subframe, all FIC blocks of data also can be sent out and not stay any data division that does not send.
At this moment, need not handle corresponding empty FIC section, need to discern the identifying information of (or differentiation) empty FIC section in order to make receiving system can abandon sky FIC section.
According to one embodiment of the present invention, the present invention uses the FIC_type field conduct in the header of empty FIC section to be used to discern the identifying information of empty FIC section.In this embodiment, the value of the FIC_type field in the empty FIC section header is set to " 11 ", to discern corresponding empty FIC section.More particularly, when the value of the FIC_type field in the empty FIC section header is set to " 11 " and is sent to receiving system, receiving system can abandon the payload that the FIC_type field value is set to the FIC section of " 11 ", and need not handle corresponding FIC section payload.Herein, value " 11 " only is to provide to promote and to simplify the exemplary value of understanding of the present invention.As long as set up pre-configured between receiving system and the transmitting system, can specify any value that can discern empty FIC section to the FIC_type field.Therefore, the present invention's example collection of being not only limited in the specification to be represented.In addition, also can use another field in the FIC section header to indicate the identifying information that to discern empty FIC section.
Figure 16 illustration according to the example syntax structure of the FIC section header of an embodiment of the invention.Herein, FIC section header can comprise FIC_type field, error_indicator field, FIC_segment_num field and FIC_last_segment_num field.Below each field will be described.
The FIC_type field is corresponding to 2 bit fields, and when it was set to " 00 ", the corresponding FIC section of indication was carried a part of FIC piece.Alternatively, when the FIC_type field was set to " 11 ", the corresponding FIC section of FIC_type field indication was the empty FIC section that sends padding data.Herein, its residual value keeps for use in the future.
Whether the error_indicator field in the FIC of correspondence section mistake takes place corresponding to 1 bit field between its indication transmission period.Herein, when mistake took place, the error_indicator field was set to " 1 ".And when not having (or not taking place) mistake, the error_indicator field is set to " 0 ".More particularly, during the processing of configuration FIC section, when having the mistake of not repairing, the error_indicator field is set to " 1 ".More particularly, the error_indicator field makes receiving system can be identified in the existence or the appearance of the mistake in the corresponding FIC section.
The FIC_segment_num field is corresponding to 4 bit unsigned integer fields, and it indicates the numbering of corresponding FIC section.For example, if corresponding FIC section is first FIC section of FIC piece, then the value of FIC_segment_num field will be set as " 0x0 ".In addition, if corresponding FIC section is second FIC section of FIC piece, then the value of FIC_segment_num field will be set as " 0x1 ".More particularly, the FIC_segment_num field will be an incremented with one along with each the additional FIC section in the FIC piece.Herein, if the FIC piece is divided into 4 FIC sections, then the FIC_segment_num field value of last the FIC section in the FIC piece will be indicated as " 0x3 ".
The FIC_last_segment_num field is corresponding to 4 bit unsigned integer fields, and it indicates the numbering of last the FIC section (that is the FIC section that, has the highest FIC_segment_num field value) in the complete FIC piece.
In traditional method, sequentially specify (or distribution) FIC segment number at each FIC section in the subframe.Therefore, in this case, the numbering of last FIC section always be complementary (that is, the numbering of last FIC section always equals TNoG) with TNoG.But when use was numbered distribution method according to FIC of the present invention, the numbering of last FIC section always was not complementary with TNoG.More particularly, the numbering of last FIC section can be complementary with TNoG, and perhaps the numbering of last FIC section can not be complementary with TNoG.TNoG represents to distribute (or appointment) sum to the data set of single subframe.For example, when TNoG equals " 6 ", and when the FIC piece was divided into 8 FIC sections, TNoG equaled " 6 ", and last FIC segment number is " 8 ".
According to another embodiment of the present invention, can discern empty FIC section by the value of utilizing the FIC_segment_num field in the FIC section header.More particularly, owing to empty FIC section is not distributed the FIC segment number, transmitting system is with the FIC_segment_num field value of empty data allocations to empty FIC section, and receiving system can allow to make sky data allocations to the FIC section of FIC_segment_num field value to be identified as sky FIC section.Herein, the data allocations that receiving system and transmitting system can be set in advance replaces empty data to the FIC_segment_num field value.
As mentioned above, the FIC piece is divided into a plurality of FIC sections, thereby sends or send by a plurality of subframes by single subframe.And, can send the FIC section of dividing by single subframe from single FIC piece, perhaps can send the FIC section of being divided by single subframe from a plurality of independent FIC pieces.At this moment, the numbering that is dispensed to each FIC section is corresponding with the numbering (that is, the FIC_seg_number value) in the corresponding FIC piece, and not corresponding with the numbering in the corresponding subframe.And, can send empty FIC section so that the border of M/H frame and the border of FIC piece are aimed at.At this moment, the FIC segment number is not dispensed to sky FIC section.
As mentioned above, can send a FIC piece, perhaps send a plurality of FIC pieces by single subframe by a plurality of subframes.Yet, according to the embodiment of the present invention, be that unit interweaves to the FIC section and sends with the subframe.
Figure 17 illustration as shown in Figure 13 to Figure 15 when sending single FIC piece by a plurality of subframes or when sending a plurality of FIC piece by single subframe, receive and recover an example of the receiving system of one or more FIC piece.
More particularly, collect FIC data, so that be that unit interweaves to collected data with the subframe at the signaling information zone in the data set of each subframe according to the signaling decoder 118 of receiving system of the present invention.Thereafter, the FIC section of 118 pairs of deinterleavings of signaling decoder is carried out the RS decoding, thereby will export FIC processor 121 to through the data of RS decoding.The FIC segment buffer of FIC processor 121 is stored the FIC section through the RS decoding temporarily, and the FIC section that will temporarily store then exports FIC section resolver to.FIC section resolver extracts and analyzes FIC section header.Subsequently, based on the result who analyzes, FIC section resolver is collected the FIC section that constitutes single FIC piece.Thereafter, FIC section resolver removes the FIC section header of (or abandoning) collected FIC section, thereby recovers (or formation) single FIC piece.
For example, FIC section resolver utilizes FIC_segment_num field and FIC_last_segment_num field in the FIC section header to collect the FIC section that constitutes a FIC piece.Export the FIC piece that recovers to FIC piece resolver then.FIC piece resolver extracts and analyzes the header of the FIC piece that is being transfused to.Then, based on the result who analyzes, FIC piece resolver extracts the signaling data in the payload that is included in corresponding FIC piece, thereby exports the signaling data that extracts to Service Manager 122.
More particularly, FIC section resolver extracts and analyzes the header that is cushioned the FIC section that is transfused to then.Thereafter, FIC section resolver search (or location) FIC_segment_num field value is the FIC section (that is the FIC section that, comprises first byte of FIC blocks of data) of " 0 ".In case FIC section resolver has been located first FIC section of FIC piece, FIC section resolver is sequentially collected from first FIC section and is begun to the data of the FIC section with identical FIC_segment_num field value and FIC_last_segment_num field value.Thereafter, FIC section resolver removes the FIC section header of collected FIC section, with formation FIC piece, thereby exports the FIC piece that constitutes to FIC piece resolver.
For example, as shown in figure 17, suppose that the TNoG of corresponding mobile broadcast equals " 6 ", and the FIC piece is divided into 5 FIC sections to transmit.With reference to Figure 17, perhaps transmit the FIC section of a FIC piece by 2 subframes, perhaps the FIC section with 2 FIC pieces is sent to a subframe.Yet, be apparent that, be that unit carries out the deinterleaving processing with the subframe.And collecting from the FIC_segment_num field value is that to begin to the FIC_segment_num field value be 5 FIC sections of the FIC section of " 4 " for the FIC section of " 0 ".When removing the FIC section header of each FIC section, recovered a FIC piece thereafter.More particularly, the FIC piece that when having collected the payload of all 5 FIC sections, recovered (or formation).At this moment, discerned empty FIC section by the FIC_type field in the empty FIC section header of correspondence.Yet empty FIC section is dropped, and does not use in the FIC piece recovers to handle.
Figure 18 illustration when transmitting the FIC piece by 8 FIC sections, and when the TNoG of corresponding mobile broadcast equaled " 6 ", receiving system received the FIC section to recover an example of FIC piece.
And, in Figure 18,, be apparent that though transmit the FIC section of a FIC piece by 2 subframes, be that unit carries out deinterleaving and handles with the subframe.Because it is identical with the FIC piece recovery processing of Figure 17 that the FIC piece of Figure 18 recovers processing, can carry out reference to Figure 17, and will omit the specific descriptions to same section for simplicity.
More particularly, collecting from the FIC_segment_num field value is that to begin to the FIC_segment_num field value be 8 FIC sections of the FIC section of " 7 " for the FIC section of " 0 ".When having removed the FIC section header of each FIC section, recovered a FIC piece thereafter.More particularly, when having collected the payload of 8 FIC sections, the FIC piece that recovered (formation).At this moment, discerned empty FIC section by the FIC_type field in the empty FIC section header of correspondence.Yet empty FIC section is dropped, and does not use in the FIC piece recovers to handle.
Simultaneously, suppose to transmit a plurality of FIC pieces that have different protocol versions separately, and receiving system can be handled all FIC pieces that have different protocol versions separately by a M/H frame.At this moment, normally received and during without any mistake, receiving system can be carried out normal the recovery to a plurality of FIC pieces that have different protocol versions separately when the FIC section that has different protocol versions separately of dividing from a plurality of FIC piece.Yet if the mistake that appearance is caused by burst noise in having a plurality of FIC pieces of different protocol versions separately, receiving system can not be carried out normal the recovery to a plurality of FIC pieces that have different protocol versions separately.
For example, suppose the master agreement version is sent to a FIC (that is M/H frame) for the FIC piece of " 00 " and master agreement version simultaneously for the FIC piece of " 01 ".And, shown in Figure 19 (a), also hypothesis is because the mistake that causes of burst noise causes sending the master agreement version for FIC section 4 to the FIC sections 7 of the FIC piece of " 00 " with send the master agreement version and do not receive for FIC section 0 to the FIC section 3 of the FIC piece of " 01 " is received system.
In this case, receiving system is also used FIC_segment_num field and the FIC_last_segment_num field in the FIC section header, begins to 8 the FIC sections of FIC_segment_num field value for the FIC section of " 7 " to collect from the FIC section of FIC_segment_num field value for " 0 ".As Figure 19 (b) shown in, remove 8 FIC sections separately FIC section header, thereby constitute a FIC piece thereafter.In this case, because the FIC section that the FIC_segment_num field value is divided for the FIC section of " 0 " and the FIC piece that from the master agreement version is " 00 " is corresponding, so receiving system is identified as " 00 " with the master agreement version of the FIC piece that constituted, shown in Figure 19 (b).
Yet, under the situation of the FIC piece shown in Figure 19 (b), FIC section 0 to FIC section 3 and master agreement version are that the FIC section transmission data of FIC piece of " 00 " are corresponding, and FIC section 4 to FIC sections 7 and master agreement version to be that the FIC section of the FIC piece of " 01 " is transmitted data corresponding.Therefore, when in the FIC section, losing owing to burst noise, the set of FIC section that receiving system can have transmission a FIC piece of 2 kinds of different protocol versions is identified as the set of FIC section that transmission has the FIC piece of single protocol version, thereby has problems when recovering the FIC piece.In addition, when going wrong in the FIC piece recovers to handle as mentioned above, receiving system can not identify and correctly not carry out the recovery of FIC piece.Therefore, receiving system can be obtained the corresponding RS frame of assemblage with the mobile service of being asked, thereby causes very serious problem.
In order to address the above problem, the present invention transmits the protocol version information of FIC piece by the FIC section header of each FIC section.According to the embodiment of the present invention, the protocol version information of the FIC piece that is transmitted by FIC section header and the master agreement version information of corresponding FIC piece and in the secondary protocol version information at least one are corresponding.
Figure 20 illustration according to the syntactic structure of the FIC section header of another embodiment of the present invention.The FIC_Chunk_major_protocol_version field is added in addition the syntactic structure of the FIC section header shown in Figure 16 herein.
More particularly, the FIC section header of Figure 20 can comprise FIC_type field, FIC_Chunk_major_protocol_version field, error_indicator field, FIC_segment_num field and FIC_last_segment_num field.Except the FIC_Chunk_major_protocol_version field, the field of describing among all the other fields and Figure 16 is identical.Therefore, for the sake of simplicity, in Figure 20, will omit the specific descriptions of identical content.
According to an embodiment of the invention, the FIC_Chunk_major_protocol_version field is corresponding to 2 bit fields, and it indicates the master agreement version of corresponding FIC piece.More particularly, the FIC_Chunk_major_protocol_version field in FIC section header have with corresponding FIC piece header in the identical value of FIC_major_protocol_version field.Master agreement version at FIC piece grammer can be with reference to the description of the FIC piece header among Fig. 9.Therefore, will omit the specific descriptions of identical content at this for the sake of simplicity.
Figure 21 illustration receive FIC section with FIC section header as shown in figure 20 and an example recovering the FIC piece.In this case, suppose that also a plurality of FIC pieces (for example, 2 FIC pieces) are sent to a FIC (that is M/H frame), each master agreement version of two FIC pieces differs from one another, and receiving system can be handled two FIC pieces that have different master agreement versions separately.
More particularly, shown in Figure 21 (a), suppose the master agreement version is sent to a FIC (promptly for the FIC piece of " 00 " and master agreement version simultaneously for the FIC piece of " 01 ", a M/H frame), and because mistake that burst noise caused, receiving system does not receive and is used to send the master agreement version for FIC section 4 to the FIC sections 7 of the FIC piece of " 00 " be used to send FIC section 0 to the FIC section 3 of master agreement version for the FIC piece of " 01 ".
At this moment, receiving system utilizes FIC_segment_num field, FIC_last_segment_num field and FIC_Chunk_major_protocol_version field in the FIC section header to recover the FIC piece.
More particularly, since from the initial FIC_Chunk_major_protocol_version field value to FIC section 3 of FIC section 0 with distinguish different from FIC section 4 initial FIC_Chunk_major_protocol_version field values to FIC section 7, though the FIC segment number is continuous, if but FIC piece protocol version differs from one another, then data can not constitute single FIC piece.
Shown in Figure 21 (b), according to the FIC processor 121 of receiving system of the present invention collect from the FIC_segment_num field value be the FIC section of " 0 " initial be 4 FIC sections of the FIC section of " 3 " to the FIC_segment_num field value.Thereafter, removing 4 FIC sections FIC section header separately, is the FIC piece of " 00 " thereby constitute the master agreement version.In addition, FIC processor 121 collect from the FIC_segment_num field value be the FIC section of " 4 " initial be 4 FIC sections of the FIC section of " 7 " to the FIC_segment_num field value.Thereafter, removing 4 FIC sections FIC section header separately, is the FIC piece of " 01 " thereby constitute the master agreement version.
Therefore, can prevent following problem: when because burst noise when losing in the FIC section, the set of FIC section that receiving system can have transmission a FIC piece of 2 kinds of different protocol versions is identified as the set of the FIC section of transmitting the FIC piece with single protocol version.
More particularly, by in addition the protocol version information of in FIC section header, distributing corresponding FIC piece, even receive mixture with the corresponding a plurality of FIC sections of FIC piece that in single M/H frame, have different protocol versions, the present invention also can only collect and the corresponding FIC section of identical protocol version, thereby recovers the FIC piece.
At this moment, when the FIC piece was resumed, as shown in figure 21, the FIC piece was not recovered fully.For example, the master agreement version be " 00 " the FIC lost block be 4 FIC sections of the FIC section of " 7 " from the FIC_segment_num field value to the FIC_segment_num field value for the FIC section of " 4 " is initial.In addition, the master agreement version be " 01 " the FIC lost block be 4 FIC sections of the FIC section of " 3 " from the FIC_segment_num field value to the FIC_segment_num field value for the FIC section of " 1 " is initial.
Therefore, according to the embodiment of the present invention, the FIC piece is not resumed in this case.More particularly, when having collected all the FIC sections with identical master agreement version, and when the quantity of collected FIC section during less than the quantity of the FIC section of being divided from the FIC piece of correspondence, then Dui Ying FIC piece is not resumed.
At this moment, can be unit or be that unit carries out and collects the FIC section to recover the processing of a FIC piece with single subframe with single M/H frame.This is because identical FIC piece can repeat, and transmits in single subframe then, and because identical FIC piece can repeat, transmits in single M/H frame then.In addition, also can be unit with the subframe of predetermined (or preassigned) quantity or be that unit carries out the processing of collecting the FIC section with the M/H frame of predetermined (or preassigned) quantity.
In addition, according to an embodiment of the invention, suppose in single M/H frame simultaneously and deposit FIC piece, and receiving system can be handled two kinds of FIC pieces that have different master agreement versions separately with another master agreement version.In this case, check the current FIC segment number of each FIC section, the numbering and the master agreement version of last FIC section, thus FIC section can be collected with master agreement version identical with the master agreement version of receiving system, thus constitute the FIC piece.
Alternatively, when supposing that existence has the FIC piece of another master agreement version simultaneously in single M/H frame, and suppose that receiving system only can handle in two kinds of master agreement versions, recover the FIC piece from the FIC section of representing its accessible master agreement version with signal.
Simultaneously, as mentioned above, the present invention uses the FIC piece, to send mapping (or configuration) information between assemblage and the mobile service in the M/H frame.Herein, when reconstruct takes place when, wherein, assemblage in current M/H frame and the map information between the mobile service are different from assemblage in next M/H frame and the map information between the mobile service, the present invention can use at least one the FIC piece from the M/H frame before the reconstruct of correspondence, to use signal indication map information between assemblage and the mobile service (perhaps carrying out signaling in advance) in the M/H frame in advance, in this M/H frame reconstruct takes place.In description of the invention, preceding M/H frame is taken place in reconstruct be called current M/H frame, and the M/H frame after reconstruct takes place is called next M/H frame.
In addition, according to the embodiment of the present invention, from single M/H frame alternately be sent in the current M/H frame with the FIC piece of the map information between signal indication assemblage and the mobile service and in next M/H frame with the FIC piece of the map information between signal indication assemblage and the mobile service.Herein, according to the embodiment of the present invention, will be in next M/H frame be placed in the current M/H frame after the FIC piece with the map information between signal indication assemblage and the mobile service according to the time order and function order, and in current M/H frame, transmit after the FIC piece with the map information between signal indication assemblage and the mobile service with the FIC piece of the map information between signal indication assemblage and the mobile service.More particularly, receiving system at first is received in the interior FIC piece with the map information between signal indication assemblage and the mobile service of current M/H frame, then is received in the interior FIC piece with the map information between signal indication assemblage and the mobile service of next M/H frame after a while.
At this moment, when recovering when reception FIC piece and to it, current_next_indicator field in the FIC piece header that the utilization of the FIC processor 121 of receiving system is recovered is corresponding to the assemblage in current M/H frame and the map information between the mobile service, or corresponding to assemblage in next M/H frame and the map information between the mobile service with the signaling information in the payload of determining to be included in each FIC piece.For the sake of simplicity, below the assemblage in the M/H frame and the map information between the mobile service are also referred to as the assemblage configuration information of M/H frame.
Figure 22 illustration the situation of exemplary generation reconstruct, wherein, the assemblage configuration information of current M/H frame is different from the assemblage configuration information of next M/H frame.With reference to Figure 22, by " ..., k-1, k, k+1, k+2, k+3 ... " part of indication represents each M/H frame.And in this example, reconstruct occurs in (k+2) individual M/H frame.As shown in figure 22, the M/H frame before reconstruct takes place comprises two assemblages and seven TNoG.And the M/H frame after reconstruct takes place comprises three assemblages and seven TNoG.
As shown in figure 22, when reconstruct took place the change owing to the quantity of the TNoG of the quantity of the assemblage that is sent to each M/H frame, the quantity of mobile service that is sent to each assemblage and each subframe, the master agreement version information and the secondary protocol version information of FIC piece remained unchanged.Yet the FIC_version field value in the TPC data changes.
Figure 22 shows FIC_version field value in the TPC data in (k+1) individual M/H frame to be increased (or increasing progressively) " 1 " and is updated to the example of " 6 " afterwards, and shows the example that current_next_indicator field value in the FIC piece header in (k+1) individual M/H frame change to " 0 ".
Figure 23 illustration when reconstruct takes place in (k+2) individual M/H frame and when the assemblage configuration information of the assemblage configuration information that alternately transmits current M/H frame from (k+1) individual M/H frame and next M/H frame exemplary RS frame obtain processing.
With reference to (k+1) individual M/H frame of Figure 23, the FIC piece that sends the assemblage configuration information of current M/H frame with signal is received early than the FIC piece of the assemblage configuration information that sends next M/H frame with signal, thereby is resumed.
At this moment, as shown in figure 23,, can obtain the assemblage configuration information of (k+2) individual M/H frame from (k+1) individual M/H frame when the physical channel that comprises required assemblage being carried out when tuning at the middle part of (k+1) individual M/H frame.More particularly, when reconstruct takes place when, to carry out FIC piece that signal sends with assemblage configuration information and send to M/H frame before the corresponding reconstruct and change assemblage in the mobile broadcast and the map information between the mobile service by carrying out in advance M/H frame that reconstruct takes place, the present invention can promptly obtain the assemblage configuration information of the M/H frame (that is the M/H frame of corresponding reconstruct, has taken place) that corresponding reconstruct has wherein taken place.And by utilizing the assemblage configuration information of (k+2) the individual M/H frame that is obtained from (k+1) individual M/H frame, the present invention can obtain the RS frame that is sent to (k+2) individual M/H frame, thereby can recover the RS frame that obtained fully.
With reference to Figure 24, except the end of k M/H frame part is tuning to the physical channel execution that comprises required assemblage, remaining tuning processing is identical with the treatment step shown in Figure 23.At this moment, when receiving system can't receive part with about 20% corresponding RS frame of M/H frame, can recover whole RS frame by using RS-CRC decoding and SCCC decoding processing.For example, suppose the physical channel that comprises required assemblage to be carried out in the end of k M/H frame part tuning, and from first FIC piece of (k+1) individual M/H frame intactly (or fully) obtain the signaling information of (k+1) individual M/H frame.
In this case, when receiving first FIC piece of (k+1) individual M/H frame, still fail to receive the RS frame that is sent to (k+1) individual M/H frame.Yet,, recover to be sent to the whole RS frame of (k+1) individual M/H frame by using RS-CRC decoding and SCCC decoding processing when the part that does not receive is equivalent to the about 20% time of (k+1) individual M/H frame.In addition, even in (k+1) individual M/H frame reconstruct takes place, the present invention can use the signaling information of (k+2) the individual M/H frame that is obtained from (k+1) individual M/H frame, intactly to recover to be sent to the RS frame of (k+2) individual M/H frame.
As mentioned above, based on the tuning point of physical channel and the FIC block data structure in the M/H frame before reconstruct takes place, the present invention can promptly obtain and recover the RS frame, thereby can provide required RS frame to the user.
Yet, as mentioned above, when transmitting the FIC piece of assemblage in next M/H frame and the map information between the mobile service when the FIC piece that has the assemblage that transmits with signal in the current M/H frame and the map information between the mobile service in single M/H frame simultaneously and with signal, the identical problem that occurs when receiving the FIC piece with different protocol versions in single M/H frame also can appear in this case.More particularly, from transmit with signal transmit assemblage in the current M/H frame and the map information between the mobile service the FIC piece the FIC section with transmit the FIC piece of FIC section recovery that transmits the FIC piece of assemblage in next M/H frame and the map information between the mobile service with signal, this wherein can go wrong.As mentioned above, when in the recovery process of FIC piece, going wrong, can't obtain the assemblage configuration information of next M/H frame suitably from the FIC piece that is recovered.Therefore, also can't obtain and recover to be sent to the RS frame of next M/H frame suitably.
For example, when transmitting the FIC section of FIC piece of assemblage in next M/H frame and the map information between the mobile service when the FIC section of the FIC piece that receives the assemblage that transmits with signal in the current M/H frame and the map information between the mobile service with the order of mixing and with signal, the FIC section that receiving system can't be determined received correspondence with belong to that to transmit the FIC section of FIC piece of assemblage in the current M/H frame and the map information between the mobile service with signal corresponding, still with belong to that to transmit the FIC section of FIC piece of assemblage in next M/H frame and the map information between the mobile service with signal corresponding.Therefore, above-mentioned problem can appear.
In addition, when the mistake that causes owing to burst noise is lost the FIC section, the FIC section that receiving system also can be determined received correspondence with belong to that to transmit the FIC section of FIC piece of assemblage in the current M/H frame and the map information between the mobile service with signal corresponding, still with belong to that to transmit the FIC section of FIC piece of assemblage in next M/H frame and the map information between the mobile service with signal corresponding.Therefore, in this case, also above-mentioned problem can take place.
Similarly, when receiving TPC data and FIC section as shown in figure 23, the problems referred to above also can take place.More particularly, as Figure 25 1. shown in, in first FIC section of the assemblage transmit next M/H frame with signal in and the FIC piece of the map information between the mobile service, the FIC_version field value in the TPC data has increased " 1 ".Correspondingly, as Figure 25 2. shown in, receiving system can withdraw from from the time slicing pattern, thereby collects (or, gather) FIC section.
In addition, as Figure 25 8. shown in, receiving system is utilized the interior FIC_segment_num field and the FIC_last_segment_num field of each FIC section header of collected FIC section, with the FIC section of the single FIC piece of only collection formation, thereby adjust each FIC section with the order of each FIC segment number.Thereafter, receiving system removes header from the FIC section of each adjustment.Correspondingly, as Figure 25 4. shown in, constituted single FIC piece.Then, receiving system is obtained the assemblage configuration information of M/H frame from the FIC piece that constitutes.Subsequently, as Figure 25 5. shown in, according to the assemblage configuration information that is obtained, receiving system entry time fragmentation schema.
Yet, with reference to as Figure 25 8. shown in the FIC section of collection, obviously, with signal transmit assemblage in the current M/H frame and the map information between the mobile service the FIC piece the FIC section with transmit next M/H frame with signal in assemblage and the FIC section of the FIC piece of the map information between the mobile service be (simultaneous) that mixes.More particularly, 8. Figure 25's illustrates the example of collecting the FIC section improperly.This is because receiving system can't determine that corresponding FIC section is to belong to the FIC section that transmits the FIC piece of the assemblage configuration information in the current M/H frame with signal, still belongs to the FIC section that transmits the FIC piece of the assemblage configuration information in next M/H frame with signal.
In addition, when as Figure 25 4. shown in when constituting the FIC piece, receiving system determines that corresponding FIC piece is transmitting the assemblage configuration information of next M/H frame with signal.Yet the FIC piece comprises to be included in signal and transmits partial data in the FIC piece of the assemblage configuration information in the current M/H frame.More particularly, 4. Figure 25's illustrates an example that is resumed when the FIC piece comprises (incorrect) information of mistake.Correspondingly, because the assemblage configuration information that is obtained from the FIC piece of incorrect recovery can correctly not obtained and be recovered so be sent to the RS frame of next M/H frame corresponding to incorrect information.
According to the embodiment of the present invention, in order to address this is that, when the FIC section header by each FIC section transmits M/H frame identifying information, M/H frame identifying information informs that corresponding FIC section is to transmit the FIC section of the FIC piece of the assemblage configuration information in the current M/H frame with signal, still transmits the FIC section of the FIC piece of the assemblage configuration information in next M/H frame with signal.According to the embodiment of the present invention, the M/H frame identifying information that is transmitted by FIC section header is corresponding with the current_next_indicator field.
Figure 26 illustration according to the syntactic structure of the FIC section header of another embodiment of the present invention.More particularly, the current_next_indicator field also is included in the syntactic structure of FIC section header shown in Figure 20.According to the present invention, the current_next_indicator field is appointed as 1 bit.
More particularly, the FIC section header of Figure 26 can comprise FIC_type field, FIC_Chunk_major_protocol_version field, current_next_indicator field, error_indicator field, FIC_segment_num field and FIC_last_segment_num field.Because can be with reference to Figure 16, so will omit the specific descriptions of identical content for the sake of simplicity at the description of FIC_type field, error_indicator field, FIC_segment_num field and FIC_last_segment_num field.
The FIC_Chunk_major_protocol_version field is corresponding to 2 bit fields, and it indicates the master agreement version of corresponding FIC piece.At this moment, the FIC_Chunk_major_protocol_version field should be identical with the value of FIC_major_protocol_version field in the corresponding FIC piece header.Owing to can for the sake of simplicity, will omit the specific descriptions of the master agreement version of FIC piece grammer with reference to the description of FIC piece header shown in Figure 9.
The current_next_indicator field is corresponding to 1 bit indicator, wherein, when being set to " 1 ", the part that the FIC section that indication is corresponding has been carried the FIC piece that is applicable to current M/H frame.Alternatively, when the current_next_indicator field is set to " 0 ", the current_next_indicator field will indicate the FIC section to carry the part of the FIC piece of the correspondence that is applicable to next M/H frame.In the previous case, the nearest version of the FIC piece that transmits with the current_next_indicator field value that is set to " 1 " will current be available.
In addition, in the signaling information zone in data set, together distribute the TPC data that then are transmitted to comprise the parameter of mainly in physical layer block, using with the FIC data.And owing to TPC data non-interleaved transmits, receiving system can be that unit visits the TPC data with the time slot.According to the embodiment of the present invention, by the characteristic of using the TPC data that comprise the FIC_version field to receive as unit with time slot, when upgrading the FIC piece, receiving system can use the FIC_version field of TPC data to determine the update mode of corresponding FIC piece.And when detecting the update mode of corresponding FIC piece, receiving system withdraws from from the time slicing pattern, so that the FIC section can be integrated (or combination).
Figure 27 illustration the example of syntactic structure of TPC data.The TPC data can comprise the sub_frame_number field, the slot_number field, the parade_id field, starting_group_number (SGN) field, number_of_groups (NoG) field, parade_repetition_cycle (PRC) field, the RS_frame_mode field, the RS_code_mode_primary field, the RS_code_mode_secondary field, the SCCC_block_mode field, the SCCC_outer_code_mode_A field, the SCCC_outer_code_mode_B field, the SCCC_outer_code_mode_C field, the SCCC_outer_code_mode_D field, the FIC_version field, the parade_continuity_counter field, TNoG field and TPC_protocol_version field.
The numbering of the current subframe in the M/H frame of sub_frame_number field indication correspondence is in order to carry out M/H frame synchronization with its transmission.The value of sub_frame_number field will be in from 0 to 4 scope.
The slot_number field is the current time slots numbering in the subframe, is in order to carry out M/H frame synchronization with its transmission.Its value will be in from 0 to 15 scope.
The parade_id field is discerned the formation that this group belongs to.The value of this field can be the value of any 7 bits.Each formation in M/H transmits will have unique parade_id.In this case, will utilize ensemble_id to carry out the communication of parade_id between physical layer and management level, wherein, increase by a bit by the left side and form ensemble_id to parade_id.If ensemble_id is that then the highest significant position of Zeng Jiaing (MSB) will be " 0 " at comprehensive by the principal series that this formation transmitted.Otherwise if ensemble_id is at by the auxilliary assemblage that this formation transmitted, then the highest significant position of Zeng Jiaing (MSB) will be " 1 ".
Starting_group_number (SGN) field is first slot_number of the formation that belongs to of this group (group) (for as calculated all the preceding after the time-gap number of formation).
Number_of_groups (NoG) field is that the quantity of the group of the queue assignment that in subframe this group belonged to subtracts 1, and for example, NoG=0 is illustrated in that a group is assigned to this formation in the subframe.The scope of the value of NoG will be from 0 to 7.Can come the timeslot number of dispensed according to SGN and NoG to corresponding queues.
Parade_repetition_cycle (PRC) field is to be that unit comes subtract 1 the circulation timei of the transmission queue of appointment with the M/H frame.
RS_frame_mode field indication single queue carries single RS frame and still carries two RS frames.
RS_code_mode_primary field pointer is to the RS code pattern of main RS frame.
RS_code_mode_secondary field pointer is to the RS code pattern of auxilliary RS frame.
How the indication of SCCC_block_mode field is dispensed to the SCCC piece with the M/H piece in the data set.
SCCC_outer_code_mode_A field indication in data set at the SCCC external schema code of regional A.
SCCC_outer_code_mode_B field indication in data set at the SCCC external schema code of area B.
SCCC_outer_code_mode_C field indication in data set at the SCCC external schema code of zone C.
SCCC_outer_code_mode_D field indication in data set at the SCCC external schema code of region D.
The version of FIC_version field indication FIC data.More particularly, the FIC_version field is represented the version of FIC block data structure.It is identical with all TPC data structures that transmitted by a M/H frame that the value of this field will be set to, and when existing the current_next_indicator field to be set to the FIC section of " 0 " in the subframe that is transmitting the TPC data structure, the value of this field will increase progressively 1.For example, the numbering of the mobile service in being included in assemblage 0 is when 2 change into 3, and the value of FIC_version field is constant.
The parade_continuity_counter field is incremented to 0 to 15, and increases progressively 1 at every (PRC+1) individual M/H frame.For example, if PRC=011, then the parade_continuity_counter field increases progressively at per four M/H frames.
The sum of the data set that the indication of TNoG field transmits in subframe.In other words, it be all formations in the subframe NoG and.Its value will (comprise 1 and 16) in 0 to 16 scope.The use of TNoG field both at current M/H frame information also at the signaling that shifts to an earlier date.
The TPC_protocol_version field is corresponding to 5 bit unsigned integer, and the version of the TPC syntactic structure of expression correspondence.2 highest significant positions are these ranks of key plate; Three least significant bits are subedition ranks, and it is read as: key plate other change at the corresponding levels will be indicated non-other change of back compatible level.Suppose that this rank of key plate remains unchanged, then other change of subedition level will be indicated other change of back compatible level.The initial value of this field will be " 11111 ".When the version in the future of this standard changes the TPC structure each time, at least one bit will be changed to form the former original value of this field.Other version value can be in the change of the grammer that is used for the reserved bit use in the future or is used to define.First this change will be to change into " 00 " or " 000 ", so this field increases progressively to be used for later change in the mode identical with other field.
Yet, only be exemplary in this information that is included in the TPC data that presents.And,, therefore the present invention is not defined in the illustrated example of this paper because those of ordinary skills can easily adjust and revise the increase and the deletion that are included in the information among the TPC.
Because the value at the TPC data (except Sub_Frame_number field and Slot_number field) of each formation does not change at M/H image duration, therefore organize and repeatedly transmit identical information by all M/H that in the M/H frame, belong to corresponding queues.This allows very healthy and strong and receives the TPC data reliably.Because Sub_Frame_number and Slot_number are the Counter Value that increases progressively, owing to transmitted the desired value of rule, therefore this Sub_Frame_number and Slot_number also are healthy and strong.
Thereby Figure 28 illustration the TPC data that receive the FIC section have FIC section header as shown in figure 26 separately and have a structure as shown in figure 27 recover an example of FIC piece.More particularly, as Figure 28 1. shown in, when the FIC_version of TPC data structure field value increased " 1 ", receiving system determined that the data structure of corresponding FIC piece is updated.Then, as Figure 28 2. shown in, receiving system withdraws from from the time slicing pattern, to collect (or collection) FIC section.
Thereafter, as Figure 28 8. shown in, receiving system is utilized interior FIC_segment_num field, FIC_last_segment_num field and the current_next_indicator field of each FIC section header of collected FIC section, only to collect the FIC section that constitutes a FIC piece.Subsequently, receiving system is adjusted the FIC section of each collection with the order of each FIC segment number.Then, as Figure 28 4. shown in, receiving system removes the header of each FIC section, thereby constitutes the FIC piece.Then, as Figure 28 5. shown in, receiving system is obtained the assemblage configuration information of M/H frame from the FIC piece that constitutes, with according to the assemblage configuration information entry time fragmentation schema that is obtained.
Under the situation 8. of Figure 28, when only collecting the FIC section that constitutes a FIC piece, can use the FIC_Chunk_major_protocol_version field in the FIC section header in addition.More particularly, receiving system can be used segment_num field, FIC_last_segment_num field, current_next_indicator field and FIC_Chunk_major_protocol_version field, transmit and the FIC section of the FIC piece of the assemblage configuration information of corresponding next (or, current) the M/H frame of identical protocol version only to collect with signal.Subsequently, receiving system is adjusted the FIC section of each collection with the order of each FIC segment number.Then, receiving system removes the header of each FIC section, thereby constitutes the FIC piece.As Figure 28 4. shown in, when constituting the FIC piece as mentioned above, can be only by constituting the FIC piece with the corresponding FIC section of the FIC piece of the assemblage configuration information that transmits next M/H frame with signal.
Therefore, receiving system can prevent by collection belong to signal transmit the assemblage configuration information in the current M/H frame the FIC piece the FIC section and belong to the problem that the FIC section that transmits the FIC piece of the assemblage configuration information in next M/H frame with signal is constructed single FIC piece.More particularly, the present invention is dispensed to each FIC section header with M/H frame identifying information.Herein, the signaling information that M/H frame identifying information can be discerned the payload that is transferred into each FIC section is corresponding with the signaling information of current M/H frame, and is still corresponding with the signaling information of next M/H frame.Thereby receiving system can be obtained the assemblage configuration information of next M/H frame without any mistake ground from the FIC piece.Correspondingly, the RS frame of next M/H frame can correctly be obtained and be recovered to be sent to receiving system.
Figure 29 and Figure 30 illustration be used to handle the flow chart of the step of FIC piece according to illustrating of an embodiment of the invention.
Suppose that the receiving system of using (or receiver) corresponds respectively to when the master agreement version of corresponding FIC piece is updated the receiving system that can't handle the FIC piece in Figure 29 and Figure 30.Also hypothesis receiving system when the secondary protocol version of corresponding FIC piece is updated only can be handled a part of FIC piece.In addition, master agreement version and the secondary protocol version of supposing the FIC piece that can be handled by receiving system is stored in the corresponding receiving system.
More particularly, in step 501, any one that use the above-mentioned method that is used for recovering the FIC piece recovered the FIC pieces from a plurality of FIC section payload.In this article, the FIC piece is made of FIC piece header and FIC piece payload.And, suppose that the syntactic structure of FIC piece header is identical with the syntactic structure shown in Fig. 9, and the syntactic structure of FIC piece payload is identical with the syntactic structure shown in Figure 12.
When having recovered the FIC piece, the part of FIC piece header is resolved to obtain to be included in the field information (S502) in the FIC piece header in step 501.This field information can comprise the information of at least one extraction from FIC_major_protocol_version field, FIC_minor_protocol_version field, FIC_chunk_header_extension_length field, ensemble_loop_header_extension_length field, M/H_service_loop_extension_length field, current_next_indicator field, transport_stream_id field and num_ensembles field.
Subsequently, whether the master agreement version of the FIC piece of receiving system check recovery is updated (S503).Can compare to determine to upgrade by master agreement version that the FIC_major_protocol_version field in the piece header of the FIC piece that recovered is obtained and the master agreement version that is stored in the FIC piece the receiving system.According to an embodiment of the invention, if with the value of the corresponding master agreement version of FIC piece that in step 502, is obtained greater than with the value that is stored in the corresponding master agreement version of FIC piece in the receiving system, then receiving system determines that the master agreement version of the FIC piece that recovered is updated.
Then, when the master agreement version of the definite FIC piece that is recovered of receiving system in step 503 was updated, receiving system can not be finished the processing (S504) to the FIC piece that is recovered in step 501.In other words, the payload of the FIC piece that recovered in step 501 is not handled.
Simultaneously, if the master agreement version of the definite FIC piece that is recovered of receiving system is not updated in step 503, then receiving system checks the secondary protocol version of the FIC piece that is recovered whether to be updated (S505).Can compare to determine to upgrade by secondary protocol version that the FIC_minor_protocol_version field in the piece header of the FIC piece that recovered is obtained and the secondary protocol version that is stored in the FIC piece the receiving system.
According to one embodiment of the present invention, if with the value of the corresponding secondary protocol version of FIC piece that in step 502, is obtained greater than with the value that is stored in the corresponding secondary protocol version of FIC piece in the receiving system, then receiving system determines that the secondary protocol version of the FIC piece that recovered is updated.
If receiving system determines that the secondary protocol version of FIC piece is not updated in step 505, then receiving system is handled (S506) to the assemblage circulation header in the payload of the FIC piece that recovered in step 501, thereby obtains the information (S507) about the quantity that is included in the mobile service in the corresponding assemblage.Can know the quantity of mobile service by reference num_MH_services field.
After execution in step 507, whether receiving system checks the secondary protocol version of the FIC piece that is recovered to be updated once more.Because verification method is identical with method described in step 505, for the sake of simplicity, specific descriptions that will the omission identical content.
If receiving system determines the secondary protocol version of corresponding FIC piece and be not updated in step 508, then receiving system is handled being contained in step 505 circulation of the mobile service in the handled assemblage (that is M/H cycle of business operations).The step of handling the M/H cycle of business operations repeat be included in assemblage in the identical number of times of quantity of mobile service.
More particularly, in step 509, handle after the M/H cycle of business operations, the receiving system check in step 509 handled mobile service whether be contained in last M/H business corresponding (S510) in the handled assemblage circulation header in step 505.Num_MH_services field by reference assemblage circulation header can be verified this information.
If the mobile service of checking is corresponding to last M/H business, then receiving system advances to step 511 according to data processing method of the present invention so that next assemblage circulation header is handled.On the other hand, if the mobile service of checking does not correspond to last M/H business, then receiving system step back (or returning) to according to the step 508 of data processing method of the present invention so that next the M/H cycle of business operations that is included in the current assemblage circulation header is handled.
If determine that in step 510 mobile service of check is corresponding with last M/H business, then whether receiving system is checked comprising the assemblage that last M/H business is arranged corresponding with the last assemblage that signal transmits with the FIC piece that passes through to be recovered in step 511.Can verify this information by the num_ensembles field of reference FIC piece.
Corresponding to last assemblage, then finished processing (S512) if determine current assemblage to the FIC piece.Yet if determine that current assemblage does not correspond to last assemblage, receiving system is stepped back (or returning) to the step 505 according to data processing method of the present invention, handles with next assemblage in the FIC piece that is recovered being included in.
Simultaneously, be updated if determine the secondary protocol version of corresponding FIC piece in step 505, then receiving system is handled all the other fields except the extended field of correspondence based on the length information that is sent to the extended field of FIC piece with signal.In this article, skip corresponding extended field.
More particularly, if the secondary protocol version of FIC piece is changed, then (wherein based on the length information of n1 the byte that is obtained from the FIC_chunk_header_extension_length field, n1 〉=0), skip the end that is added into corresponding FIC piece header n1 byte FIC piece header extension field and it is not handled (S513).
In addition, when the secondary protocol version of FIC piece has been changed, to handling (S514) by the assemblage circulation header portion of receiving system decoding.At this moment, based on the information of n2 the byte length that is obtained from the ensemble_loop_header_extension_length field (wherein, n2 〉=0), skip the end that is added into corresponding assemblage circulation header n2 byte assemblage circulation header extension field and it is not handled (S515).
In addition, when the secondary protocol version of FIC piece has been changed, to can partly handling (S516) by the M/H cycle of business operations of receiving system decoding.At this moment, based on the information of n3 the byte length that is obtained from the M/H_service_loop_extension_length field (wherein, n3 〉=0), skip the end that is added into corresponding M/H cycle of business operations n3 byte M/H cycle of business operations extended field and it is not handled (S517).
In step 516 and step 517 to M/H after cycle of business operations has been carried out handling, the mobile service that the receiving system check is handled in step 516 and step 517 whether with last M/H business corresponding (S510) in the assemblage circulation header of being included in of in step 514 and step 515, handling.Can know this information by the num_MH_services field of reference assemblage circulation header.
If mobile service is corresponding to last M/H business, then receiving system advances to step 511 so that next assemblage circulation header is handled.On the contrary, if mobile service does not correspond to last M/H business, then receiving system is returned step 508 and is handled with next the M/H cycle of business operations to the assemblage circulation header of correspondence.
In step 511, in case receiving system is determined mobile service corresponding to last M/H business in step 510, then whether receiving system then checks the assemblage of last M/H business of carrying with corresponding by last assemblage that signal transmits from the FIC piece that recovers.Can check this information by the num_ensembles field of reference FIC piece.
When receiving system determine assemblage corresponding to last assemblage of from the piece that recovered by signal transmitting, finish processing (S512) to FIC piece thereafter.Yet, if determining this assemblage, receiving system do not correspond to last assemblage that transmits by signal from the piece that recovered, receiving system is returned next assemblage in step 505 is included in recovery with processing the FIC piece.
Simultaneously, if receiving system according to the present invention corresponding to the receiving system that can be received in the change in the FIC master agreement version, is then carried out normal process to the FIC piece that is recovered from a plurality of FIC sections.
In addition, if receiving system according to the present invention is corresponding to the receiving system that can be received in the change in the secondary protocol version of FIC, and when the secondary protocol version that confirms the FIC piece has been updated, based on the length information that is sent to the extended field of FIC piece by signal, the FIC piece is handled until the processing of finishing corresponding extended field.
More particularly, based on the length information of n1 the byte that is obtained from the FIC_chunk_header_extension_length field (wherein, n1 〉=0), the FIC piece is handled until the processing of finishing the FIC piece header extension field of n1 the byte at the end that is added into corresponding FIC piece header.And, based on the length information of n2 the byte that is obtained from the ensemble_loop_header_extension_length field (wherein, n2 〉=0), the FIC piece is handled until the processing of finishing the assemblage circulation header extension field of n2 the byte at the end that is added into corresponding assemblage circulation header.In addition, based on the length information of n3 the byte that is obtained from the M/H_service_loop_extension_length field (wherein, n3 〉=0), the FIC piece is handled until the processing of finishing the M/H cycle of business operations extended field of n3 the byte at the end that is added into corresponding M/H cycle of business operations.For example, if digital broadcast receiving system according to the present invention is corresponding to the receiving system of the change that can accept corresponding secondary protocol version, then can know the details (or content) of and indication specified, and can correspondingly carry out at details corresponding operating specified in the extended field of correspondence from the extended field of correspondence.
It is apparent that to those skilled in the art, under the condition that does not depart from the spirit or scope of the present invention, can make various modifications and variations the present invention.Therefore, the present invention is intended to contain these modifications of the present invention and the modified example that falls in claims and the equivalent scope thereof.
Industrial usability
The execution mode that is used to send with the method for received signal and is used to send with the device of received signal according to the present invention can be used for the broadcasting and the communications field.

Claims (15)

1. the method for a deal with data in receiving system said method comprising the steps of:
Receive the broadcast singal that comprises mobile service data and FIC section from least one time slot, wherein, transmission frame is made of a plurality of subframes that are used to receive at least one assemblage and at least one mobile service, and wherein, subframe is made of a plurality of time slots;
From described broadcast singal, obtain the FIC section and obtain the FIC piece, the FIC piece that is obtained is made of piece header and piece payload, wherein, described header comprises FIC piece master agreement version information and the secondary protocol version information of FIC piece, and wherein, described payload comprises the signaling information between at least one assemblage and at least one mobile service; And
Come described FIC piece is handled based on described FIC piece master agreement version information in the described header that is included in described FIC piece and the secondary protocol version information of described FIC piece.
2. method according to claim 1, wherein, described header also comprises in the extension length information of the extension length information of extension length information, assemblage circulation header of FIC piece header and mobile service circulation at least one and about the information of the quantity of the assemblage that transmits with signal in described FIC piece.
3. method according to claim 2, wherein, to be added into the end of described FIC piece header with the FIC piece header extension information of the corresponding n1 of the described extension length information byte of described FIC piece header, wherein, n1 〉=0, wherein, to be added into the end of described assemblage circulation header with the assemblage circulation header extension information of the corresponding n2 of the described extension length information byte of described assemblage circulation header, wherein, n2 〉=0, and, wherein, to be added into the end that described mobile service circulates with the mobile service cyclic extensions information of the corresponding n3 of the described extension length information byte of described mobile service circulation, wherein, n3 〉=0.
4. method according to claim 2, wherein, when corresponding FIC piece is handled, when the secondary protocol version information of described FIC piece changes, and when described receiving system can not be accepted the change of the secondary protocol version information of described FIC piece, based on each extension length information, skip corresponding extend information and this corresponding extend information is not handled.
5. method according to claim 2, wherein, when corresponding FIC piece is handled, when the secondary protocol version information of described FIC piece changes, and when described receiving system can be accepted the change of the secondary protocol version information of described FIC piece, based on each extension length information, described FIC piece is handled processing until the extend information of finishing described correspondence.
6. method according to claim 1, wherein, each FIC section that constitutes the FIC piece comprises the section header of 2 bytes and the section payload of 35 bytes, wherein, described section header comprises the numbering of FIC type information, the corresponding FIC section a plurality of FIC sections of being divided from described FIC piece and the numbering of last the FIC section described a plurality of FIC sections of being divided from described FIC piece, and wherein, described section payload comprises the part of the described signaling information between at least one assemblage and at least one mobile service.
7. method according to claim 5, wherein, last FIC section of described FIC piece comprises N padding data byte, wherein N is integer and is equal to or greater than " 0 ", be N 〉=0, and wherein, decide the quantity of padding data byte based on equation shown below:
The quantity N=35-j of padding data byte,
Wherein, j=(5+ is inserted in the quantity of the signaling data byte in the described FIC piece payload) is to 35 deliverys.
8. method according to claim 1, this method is further comprising the steps of:
Extract transmission parameter channel (TPC) data that comprise identifying information from the broadcast singal that receives, wherein, described identifying information can be discerned the renewal of the data structure of described FIC piece.
9. receiving system, described receiving system comprises:
Receiving element, it receives the broadcast singal that comprises mobile service data and FIC section from least one time slot, and wherein, transmission frame is made of a plurality of subframes that are used to receive at least one assemblage and at least one mobile service, and wherein, subframe is made of a plurality of time slots;
First processing unit, it obtains the FIC section and obtains the FIC piece from described broadcast singal, the FIC piece that is obtained is made of piece header and piece payload, wherein, described header comprises FIC piece master agreement version information and the secondary protocol version information of FIC piece, and wherein, described payload comprises the signaling information between at least one assemblage and at least one mobile service; And
Second processing unit, it comes described FIC piece is handled based on described FIC piece master agreement version information in the described header that is included in described FIC piece and the secondary protocol version information of described FIC piece.
10. receiving system according to claim 9, wherein, described header also comprises in the extension length information of the extension length information of extension length information, assemblage circulation header of FIC piece header and mobile service circulation at least one and about the information of the quantity of the assemblage that transmits with signal in described FIC piece.
11. receiving system according to claim 10, wherein, to be added into the end of described FIC piece header with the FIC piece header extension information of the corresponding n1 of the described extension length information byte of described FIC piece header, wherein, n1 〉=0, wherein, to be added into the end of described assemblage circulation header with the assemblage circulation header extension information of the corresponding n2 of the described extension length information byte of described assemblage circulation header, wherein, n2 〉=0, and, wherein, to be added into the end that described mobile service circulates with the mobile service cyclic extensions information of the corresponding n3 of the described extension length information byte of described mobile service circulation, wherein, n3 〉=0.
12. receiving system according to claim 10, wherein, when the secondary protocol version information of described FIC piece changes, and when described receiving system can not be accepted the change of the secondary protocol version information of described FIC piece, described receiving system is based on each extension length information, skips corresponding extend information and this corresponding extend information do not handled.
13. receiving system according to claim 10, wherein, when the secondary protocol version information of described FIC piece changes, and when described receiving system can be accepted the change of the secondary protocol version information of described FIC piece, described receiving system is based on each extension length information, and described FIC piece is handled processing until the extend information of finishing described correspondence.
14. receiving system according to claim 9, wherein, each FIC section that constitutes the FIC piece comprises the section header of 2 bytes and the section payload of 35 bytes, wherein, described section header comprises the numbering of FIC type information, the corresponding FIC section a plurality of FIC sections of being divided from described FIC piece and the numbering of last the FIC section described a plurality of FIC sections of being divided from described FIC piece, and wherein, described section payload comprises the part of the described signaling information between at least one assemblage and at least one mobile service.
15. receiving system according to claim 14, wherein, last FIC section of described FIC piece comprises N padding data byte, wherein N is integer and is equal to or greater than " 0 ", be N 〉=0, and wherein, decide the quantity of padding data byte based on equation shown below:
The quantity N=35-j of padding data byte,
Wherein, j=(5+ is inserted in the quantity of the signaling data byte in the described FIC piece payload) is to 35 deliverys.
CN200980155896.8A 2009-02-02 2009-07-21 Transmitting/receiving system and method of processing data in the transmitting/receiving system Expired - Fee Related CN102301701B (en)

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