CN104270215A - 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
CN104270215A
CN104270215A CN201410557708.7A CN201410557708A CN104270215A CN 104270215 A CN104270215 A CN 104270215A CN 201410557708 A CN201410557708 A CN 201410557708A CN 104270215 A CN104270215 A CN 104270215A
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fic
block
data
frame
field
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CN104270215B (en
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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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    • 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

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Security & Cryptography (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

A transmitting/receiving system and method of processing data in a transmitting/receiving system are provided to efficiently perform channel setting by using signaling information. A different FIC(Fast Information Channel) chunk major protocol version from a received broadcasting signal extracts a signaled FIC segments. The number of the corresponding FIC segment, the number of the last FIC segment, the FIC chunk major protocol version information are obtained from each segment header. The FIC chunk including signaling information between the ensemble and the mobile service is restored from the FIC segments.

Description

Transmitting/receiving system and in transmitting/receiving system the method for deal with data
The application to be original bill application number be 200980155896.8 application for a patent for invention (international application no: PCT/KR2009/004023, the applying date: on July 21st, 2009, denomination of invention: transmitting/receiving system and the method for deal with data in transmitting/receiving system) divisional application.
Technical field
The present invention relates to a kind of transmitting system for sending digital broadcast signal, for receive the digital broadcast signal sent from transmitting system receiving system (or receiver) and transmitting system and receiving system (or receiver) the method for deal with data.
Background technology
The vestigial sideband transmission pattern be used in North America and Korea S as standards for digital broadcasting is the system using single carrier method.Therefore, in the channel circumstance of difference, the receptivity of receiving system can worsen.Specifically, owing to more needing change and the noise of resisting channel when using portable and/or mobile broadcast receiver, when sending mobile service data by VSB transmission mode, receptivity may worsen more.
Summary of the invention
Therefore, the present invention is devoted to provide a kind of transmitting/receiving system and the data processing method that substantially eliminate one or more problem that limitation and shortcoming due to correlation technique cause.
An object of the present invention is to provide a kind of transmitting/receiving system and the data processing method that highly can resist channel variation and noise.
Another object of the present invention is to provide a kind of transmitting/receiving system and data processing method by utilizing signaling information can perform the setting of effective channel.
Another object of the present invention is to provide one can also by transmitting/receiving system and the data processing method utilizing fast information channel in dab receiver (FIC:fast information channel) to perform the setting of effective channel.
Other advantage of the present invention, object and a feature part will be set forth in the following description, and a part will become clear for a person skilled in the art after studying following content carefully, or can know from practice of the present invention.These objects of the present invention and other advantage can be realized by the structure specifically noted in this written description and claims and accompanying drawing thereof and be obtained.
As embodied herein with broadly described, in order to realize these objects and other advantage, and according to object of the present invention, in receiving system, the method for deal with data comprises the following steps: receive the broadcast singal comprising mobile service data and FIC section from least one time slot, wherein, transmission frame is made up of the multiple subframes for receiving at least one assemblage and at least one mobile service, and wherein, subframe is made up of multiple time slot; From described broadcast singal, obtain FIC section and obtain FIC block, the FIC block obtained is made up of block header and block payload, wherein, described piece of header comprises FIC block master agreement version information and the secondary protocol version information of FIC block, and wherein, described piece of payload comprises the signaling information between at least one assemblage and at least one mobile service; And based on the described FIC block master agreement version information be included in described piece of header of described FIC block and the secondary protocol version information of described FIC block, described FIC block is processed.
In this article, block header can also be included in the information with at least one item in the extension length information of the extension length information of FIC block header of signal transmission, the extension length information of assemblage circulation header and mobile service circulation and the quantity about assemblage in described FIC block.
The FIC block header extension information of n1 the byte corresponding with the described extension length information of described FIC block header can be added into the end (wherein, n1 >=0) of described FIC block header.The assemblage circulation header extension information of n2 the byte corresponding with the described extension length information of described assemblage circulation header is added into the end (wherein, n2 >=0) of described assemblage circulation header.Further, the mobile service cyclic extensions information of n3 the byte corresponding with the described extension length information that described mobile service circulates is added into the end (wherein, n3 >=0) that described mobile service circulates.
And each FIC section forming FIC block can comprise the section header of 2 bytes and the section payload of 35 bytes.Here, described section of header comprises the numbering of FIC type information, the numbering of corresponding FIC section in the multiple FIC sections divided from described FIC block and last the FIC section in the described multiple FIC sections divided from described FIC block.Further, described section of 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, the first processing unit and the second processing unit.Receiving element receives the broadcast singal comprising mobile service data and FIC section from least one time slot.Here, transmission frame is made up of the multiple subframes for receiving at least one assemblage and at least one mobile service, and subframe is made up of multiple time slot.First processing unit obtains FIC section and obtains FIC block from described broadcast singal, and wherein obtained FIC block is made up of block header and block payload.Here, described piece of header can comprise FIC block master agreement version information and the secondary protocol version information of FIC block, and described piece of payload comprises the signaling information between at least one assemblage and at least one mobile service.Second processing unit processes described FIC block based on the described FIC block master agreement version information be included in described piece of header of described FIC block and the secondary protocol version information of described FIC block.
Should be understood that, general description above and specific descriptions are below all exemplary and explanatory, and are intended to provide further explanation to the present invention for required protection.
Beneficial effect
Have the following advantages according to transmitting system of the present invention and receiving system and its data processing method.
The present invention can be transmitted in mapping (or signaling) information between at least one assemblage and at least one mobile service by utilizing FIC block with signal, and FIC block can be divided into FIC segment unit and send, thus enable receiving system perform business acquisition fast.
In addition, when the size of data of FIC block be less than or greater than carry out the size of data of the FIC section transmitted by single subframe time, the present invention by single subframe or can transmit the multiple FIC sections divided from FIC block by multiple subframe, thus prevents FIC section to be wasted.
In addition, the present invention can transmit the protocol version information of the FIC block corresponding with FIC section by the header of FIC section, even if thus when there is the FIC block of different protocol versions in single M/H frame simultaneously, receiving system also can be made can accurately to recover FIC block by utilizing the FIC section comprising corresponding protocol version.
The present invention also can transmit identifying information, this identifying information is sent to the payload of corresponding FIC section signaling information for the header being identified by FIC section is corresponding with the signaling information of current M/H frame, also whether corresponding with the signaling information of next M/H frame, even if thus when exist in single M/H frame simultaneously transmit the assemblage configuration information of current M/H frame with signal FIC block with when transmitting the FIC block of the assemblage configuration information of next M/H frame with signal, receiving system also can be made to pass through to utilize the FIC section of corresponding M/H frame can accurately recover FIC block.
More particularly, the present invention resists any noise that (or opposing) can occur when transmitting mobile service data by channel to heavens.Further, the present invention is also compatible to heavens with traditional receiving system.In addition, even if in the channel with serious phantom (ghost) effect and noise, the present invention also can receive mobile service data without any mistake.In addition, insert given data by the specific position in data area and transmit the data of process, even if in the signal environment being subject to frequency shift impact, the receptivity of receiving system also can be strengthened.Finally, the present invention is applied to the impact that is subject to the change of channel medium frequency and need to resist movement and the portable receiver of (or keeping out) serious noise time more effective.
Accompanying drawing explanation
Accompanying drawing is included in this application to provide a further understanding of the present invention, and to be attached in the application and to form a application's part, and accompanying drawing shows multiple 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 is exemplified with the block diagram of the general structure of the receiving system illustrated according to an embodiment of the invention;
Fig. 2 is exemplified with an example arrangement of data group according to the present invention;
Fig. 3 is exemplified with the RS frame according to an embodiment of the invention;
Fig. 4 is exemplified with an example of the M/H frame structure for sending and receive mobile service data according to the present invention;
Fig. 5 is exemplified with an example of general VSB frame structure;
Fig. 6 is exemplified with the data transmission structure in physical layer according to an embodiment of the invention;
Fig. 7 is exemplified with the signaling structure of the layering according to an embodiment of the invention;
Fig. 8 is exemplified with the syntactic structure of the FIC block according to an embodiment of the invention;
Fig. 9 is exemplified with the syntactic structure of the FIC block header according to an embodiment of the invention;
Figure 10 is exemplified with the exemplary change in the secondary protocol version of FIC block according to the present invention;
Figure 11 is exemplified with the example process of the process FIC block when the secondary protocol version of FIC block according to the present invention changes;
Figure 12 is exemplified with the syntactic structure of the FIC block payload according to an embodiment of the invention;
Figure 13 is exemplified with an example of the segment processing of FIC block according to the present invention;
Figure 14 is exemplified with the FIC section transmitted according to an embodiment of the invention;
Figure 15 is exemplified with FIC section transmitted according to another implementation of the invention;
Figure 16 is exemplified with the syntactic structure of the FIC section header according to an embodiment of the invention;
Figure 17 is exemplified with the example recovering (or acquisition) one or more FIC block by receiving FIC section according to the present invention;
Figure 18 is exemplified with another example recovering (or acquisition) one or more FIC block by receiving FIC section according to the present invention;
Figure 19 is exemplified with an example of the mistake that may occur when by receiving FIC section and recovering one or more FIC block according to the present invention;
Figure 20 is exemplified with the syntactic structure of FIC section header according to another implementation of the invention;
Figure 21 is exemplified with another example recovering one or more FIC block by receiving FIC section according to the present invention;
Figure 22 is exemplified with the reconstruct of the FIC block of exemplary generation according to the present invention;
Figure 23 obtains process exemplified with the exemplary RS frame sent by performing signaling in advance to FIC block according to the present invention;
Figure 24 obtains process exemplified with another exemplary RS frame sent by performing signaling in advance to FIC block according to the present invention;
Figure 25 recovers by receiving FIC section another example that one or more FIC block is the mistake occurred exemplified with according to of the present invention;
Figure 26 is exemplified with the syntactic structure of FIC section header according to another implementation of the invention;
Figure 27 is exemplified with the syntactic structure of the TPC data according to an embodiment of the invention;
Figure 28 is exemplified with exemplified with another example recovering one or more FIC block by receiving FIC section according to the present invention; And
Figure 29 and Figure 30 is exemplified with the flow chart recovering one or more FIC block by receiving FIC section according to an embodiment of the invention.
Embodiment
To the preferred embodiment of the present invention be described in detail below, be illustrated the example of the preferred embodiment of the present invention in the accompanying drawings.Identical or like is represented with identical label as far as possible in whole accompanying drawing.In addition, although the term used in the present invention is selected from public term, but part term applicant mentioned in specification of the present invention selects according to his or she consideration, and the detailed meanings of the relevant portion in this paper specification to these terms has made explanation.In addition, the present invention understood in the term that can not use simply by reality, but need to understand the present invention by meaning inherent in each term.
Among term used in describing the invention, main business data are corresponding with the data that can be received by fixing receiving system, and can comprise audio/video (A/V) data.More particularly, main business data can comprise the A/V data of high definition (HD:high definition) or SD (SD:standard definition) rank, and also can comprise for the numerous types of data needed for data broadcast.And given data is with according to the agreement preset between receiving system and transmitting system, given data is corresponding in advance.
In addition, in term used in the present invention, " M/H " (or MH) is corresponding with the initial of " movement " and " hand-held ", and represents the concept contrary with fixed system.In addition, M/H business datum can comprise at least one in mobile service data and hand-held business datum, and in order to simply, also can be referred to as " mobile service data ".Below, M/H, MH are used as identical implication with mobile.In this article, mobile service data not only corresponds to M/H business datum but also can comprise the business datum of any type with mobile or portable nature.Therefore, mobile service data according to the present invention is not limited only to M/H business datum.
Above-mentioned mobile service data corresponding to the data of information with such as program execution files, stock information etc., and also can correspond to A/V data.More particularly, mobile service data can be corresponding with the A/V data with resolution lower compared with main business data and lower data rate.Such as, if correspond to MPEG-2 codec for the A/V codec of traditional main service, then MPEG-4 advanced video encoding (AVC:advanced video coding) or the gradable video encoding (SVC:scalable video coding) with better video image compression efficiency can as the A/V codecs for mobile service.In addition, the data of any type can send as mobile service data.Such as, transport protocol expert group (the TPEG:transport protocol expert group) data for broadcasting real-time Transmission information can send as main business data.
And, the data, services of mobile service data is utilized to comprise weather forecast service, traffic-information service, stock information is served, spectators participate in test program, real-time vote and investigation, interactive educational radio program, game services, synopsis about soap opera or serial is provided, personage, the service of the information of background music and spot for photography, there is provided about the match score in past and the information of sportsman's Profile and achievement service and provide about purchase order is processed by serving, medium, the service of the information of the product information that time and theme are classified and program.In this article, the present invention is not limited only to above-mentioned service.In the present invention, transmitting system provides the backward compatibility in main business data, to be received by traditional receiving system.Here, main business data and mobile service data are multiplexed to identical physical channel, then send.
In the present invention, transmitting system provides the backward compatibility in main business data, to be received by traditional receiving system.Here, main business data and mobile service data are multiplexed to identical physical channel, then send.
In addition, transmitting system according to the present invention performs other coding to mobile service data and inserts receiving system and the known data (such as, given data) of transmitting system, thus 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 there is various distortion and noise in the channel, also stably can receive mobile service data.
According to an embodiment of the invention, transmitting system and receiving system operate two kinds of dissimilar data channels: for sending the RS frame data channel of content and fast information channel in dab receiver (the FIC:fast information channel) data channel for obtaining service.
More particularly, the present invention can transmit map information between assemblage and mobile service by using FIC block signal, and FIC block can be divided into FIC segment unit, and send the FIC segment unit after dividing, thus make receiving system to carry out quick service acquisition.
In addition, when the size of data of FIC block is less than or is greater than the size of data of the FIC section sent by single subframe, the present invention by single subframe or can send the multiple FIC sections divided from FIC block by multiple subframe, thus prevents FIC section to be wasted.
In addition, the present invention can send the protocol version information of the FIC block corresponding with FIC section by the header of FIC section, even if thus make the FIC block that simultaneously there is different protocol versions in single M/H frame, receiving system is also by utilizing the FIC section being configured with corresponding protocol version accurately to recover (or obtaining) FIC block.
The present invention also can send identifying information, whether this identifying information is corresponding with the signaling information of current M/H frame or the signaling information of next M/H frame for identifying the signaling information of the payload being sent to corresponding FIC section, even if thus make to exist the FIC block signaling assemblage configuration information of current M/H frame and the FIC block signaling assemblage configuration information of next M/H frame in single M/H frame simultaneously, receiving system is also by using the FIC section of corresponding M/H frame accurately to recover FIC block.
receiving system
Fig. 1 is exemplified with the block diagram of the general structure of the receiving system according to an embodiment of the invention.With reference to Fig. 1, the arrow data paths shown in dotted line, the arrow instruction control signal path shown in 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, auxiliary RS frame decoder 117, signaling decoder 118 and baseband controller 119.FIC processor 121, Service Manager 122, traffic signaling manager 123 and the first memory cell 124 can also be comprised according to receiving system of the present invention.Main RS frame buffer 131, auxiliary RS frame buffer 132 and transmission package (TS) processor 133 can also be comprised according to receiving system of the present invention.Internet protocol (IP:Internet Protocol) packet processing machine 141 can also be comprised according to receiving system of the present invention, descrambler 142, User Datagram Protoco (UDP) (UDP:User Datagram Protocol) packet processing machine 143, RTP/RTCP Real-time Transport Control Protocol (RTP/RTCP) packet processing machine 144, NTP (Network Time Protocol) (NTP:Network Time Protocol) packet processing machine 145, service protection stream processing 146, second memory cell 147, asynchronous layered coding/Layered Coding Transport (ALC/LCT) stream processing 148, extend markup language (XML) resolver 150 and field device tool (FDT:Field Device Tool) processor 151.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 can also be comprised according to receiving system of the present invention.Electronic program guides (EPG:Electronic Program Guide) manager 171, application manager 172 and user interface (UI) manager 173 can also be comprised according to receiving system of the present invention.
In order to 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, auxiliary 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 the first memory cell 124 are referred to as service duplexer 120.Main RS frame buffer 131, auxiliary 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 packet processing machine 144, NTP packet processing machine 145, service protection stream processing 146, second memory cell 147, ALC/LCT stream processing 148, XML parser 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 the term used in Fig. 1 is selected from public term, but part term applicant mentioned in the description of Fig. 1 selects according to his or she consideration, and the detailed meanings of the relevant portion in this paper specification to these terms has made explanation.In addition, the present invention understood in the term that can not use simply by reality, but need to understand the present invention by meaning inherent in each term.
With reference to Fig. 1, the operation of baseband controller 119 to each block be included in baseband processor 110 controls.
Tuner 111 by by receiving system be tuned to specific physical channel frequencies (or used physical transmission channel frequency, PTC) make receiving system can receive main business data (corresponding to the broadcast singal for the broadcast receiver system of fixed type) and mobile service data (broadcast singal corresponding to for mobile broadcast receiving system).Herein, by be tuned to the frequency of particular physical channel to down-converting to intermediate frequency (IF) signal, outputted to demodulator 112 and known sequence detector 114 thus.The passband digital IF signal exported from tuner 111 can only include main business data, or can only include mobile service data, or can not only comprise main business data but also comprise mobile service data.
Demodulator 112 performs from gain control, carrier auxiliary and Timed Recovery process the passband digital IF signal inputted from tuner 111, thus IF signal is converted to baseband signal.Subsequently, baseband signal is outputted to equalizer 113 and known sequence detector 114 by demodulator 112.Demodulator 112 uses the given data symbol sebolic addressing inputted from known sequence detector 114 during timing and/or carrier auxiliary, improves demodulation performance thus.Equalizer 113 is compensated the distortion relevant to channel in the signal be included in after demodulator 112 demodulation.Subsequently, the signal after distortion compensation is outputted to block decoder 115 by equalizer 113.Equalizer 113 improves equalization performance by using the given data symbol sebolic addressing inputted from known sequence detector 114.In addition, equalizer 113 can receive feedback to decoded result from block decoder 115, improves equalization performance thus.
Known sequence detector 114 detects the given data place (or position) of being inserted by transmitting system from input/output data (that is, the data before demodulated or by the data of part demodulation process).Subsequently, the known data location information detected and the given data sequence that generates according to the positional information detected are outputted to demodulator 112, equalizer 113 and baseband controller 119 by known sequence detector 114.In addition, identify to make block decoder 115 and use the mobile service data that processes of additional code by transmitting system and not yet through the main business data of any additional code process, this corresponding information is outputted to block decoder 115 by known sequence detector 114.
If through equalizer 113 carry out channel equalization and the data being imported into block decoder 115 correspond to be utilized by transmitting system the block forecast of Serial Concatenated Convolutional Code (SCCC:serial concatenated convolution code) method and grid coding (trellis-encoding) both process after data (namely, data in RS frame, signaling data), then block decoder 115 can perform decoding against the trellis decode (trellis-decoding) processed and block as transmitting system.On the other hand, if through equalizer 113 carried out channel equalization and the data being imported into block decoder 115 correspond to only carried out grid coding by transmitting system but the data of not carrying out block forecast process (namely, main business data), then block decoder 115 only can perform trellis decode.
Signaling decoder 118 is to inputting from equalizer 113 and decoding through the signaling data of channel equalization.The signaling data (or signaling information) supposing to be input to signaling decoder 118 correspond to by transmitting system utilize block forecast and grid coding process after data.The example of such signaling data can comprise transformation parameter channel (TPC) data and fast information channel in dab receiver (FIC) data.
Such as, among the data be transfused to, signaling decoder 118 decodes (regressive turbo decoding) to the recurrence turbo that the data corresponding with signaling information region perform Parallel Concatenated Convolutional Code (PCCC:parallel concatenated convolution code) method.Subsequently, signaling decoder 118 isolates FIC data and TPC data from the signaling data returning turbo decoding.In addition, signaling decoder 118 performs the RS decoding of the inverse process as transmitting system to the TPC data be separated, thus exports treated data to baseband controller 119.And signaling decoder 118 carries out deinterleaving to the FIC data be separated in units of subframe, to perform the RS decoding of the inverse process as transmitting system to the FIC data of deinterleaving, thus export treated data to FIC processor 121.Send to be deinterlaced from signaling decoder 118 in units of FIC section and to decode with RS and to export the FIC data of FIC processor 121 to.
FIC processor 121 receives FIC data from signaling decoder 118, to extract the signaling information (that is, the map information between assemblage and mobile service) obtained for business.For this reason, FIC processor 121 can comprise FIC segment buffer, FIC section resolver and FIC block resolver.
FIC segment buffer carries out buffer memory to the FIC section group inputted in units of M/H frame from signaling decoder 118, thus exports the FIC section group of buffer memory to FIC section resolver.Thereafter, FIC section resolver extracts the header of each FIC section be stored in FIC segment buffer, to analyze the header extracted.Then, based on the result analyzed, FIC section resolver exports the payload of each FIC section to FIC block resolver.FIC block resolver uses the result of the analysis exported from FIC section resolver to recover FIC block data structure from FIC section payload, thus analyzes the FIC block data structure received.Subsequently, FIC block resolver extracts the signaling information being used for business and obtaining.Export the signaling information obtained from FIC block resolver to Service Manager 122.
Meanwhile, traffic signaling processor 123 comprises traffic signaling buffer and traffic signaling resolver.Here, the table section of traffic signaling manager 123 to the traffic signaling channel sent from UDP datagram processor 143 carries out buffer memory, thus carries out treatment and analysis to the table section of buffer memory.Similarly, Service Manager 122 is also exported to by by the signaling information handled by traffic signaling manager 123.
Service Manager 122 utilizes the signaling information collected separately from FIC processor 121 and traffic signaling manager 123, is configured to map business.Thereafter, Service Manager 122 utilizes the service guide (SG) collected from service guide (SG) processor 165, to draft program guide.Then, Service Manager 122 controls baseband controller 119, makes user can receive the mobile service of (or being provided) user request by referring to business mapping and business guide.In addition, Service Manager 122 also can control receiving system, makes it possible to the input program guide on display screen at least partially based on user.
First memory cell 124 stores the business drafted by Service Manager 122 and maps and business guide.And based on the request from Service Manager 122 and EPG manager 171, the first memory cell 124 extracts required data, is then sent to Service Manager 122 and/or EPG manager 171.
Baseband controller 119 receives known data location information and TPC data, thus by M/H frame time information, indicate in the queue selected, whether there is data group information, given data in data group in correspondence positional information, power control information etc. be sent to each block in baseband processor 110.TPC data will be described particularly after a while.
Meanwhile, according to the present invention, transmitting system uses RS frame according to coding units (unit).In this article, RS frame can be divided into main RS frame and auxiliary RS frame.But, according to the embodiment of the present invention, the significance level according to corresponding data is divided main RS frame and auxiliary RS frame.
Main RS frame decoder 116 receives the data exported from block decoder 115.Herein, according to the embodiment of the present invention, main RS frame decoder 116 only receives from block decoder 115 and have passed through the mobile service data that Read-Solomon (RS) is encoded and/or cyclic redundancy check (CRC) (CRC) is encoded.
In this article, main RS frame decoder 116 receives only mobile service data and does not receive main business data.Main RS frame decoder 116 performs the inverse process for the RS frame encoder (not shown) be included in digital broadcasting transmission system, is corrected in the mistake existed in main RS frame thus.More particularly, main RS frame decoder 116, by forming main RS frame in groups to multiple data group, subsequently, carries out error correction in units of main RS frame.In other words, main RS frame decoder 116 aligns the main RS frame be sent out for actual broadcast business and decodes.Export the main RS frame of being decoded by main RS frame decoder 116 to main RS frame buffer 131.Main RS frame buffer 131 carries out buffer memory to main RS frame, then configures M/H TP with each behavior unit.The M/H TP of main RS frame exports TP processor 133 to.
In addition, auxiliary RS frame decoder 117 receives the data exported from block decoder 115.Herein, according to the embodiment of the present invention, auxiliary RS frame decoder 117 only receives the mobile service data that have passed through RS coding and/or CRC coding from block decoder 115.Herein, auxiliary RS frame decoder 117 receives only mobile service data and does not receive main business data.Auxiliary RS frame decoder 117 performs the inverse process for the RS frame encoder (not shown) be included in digital broadcasting transmission system, corrects the mistake existed in auxiliary RS frame thus.More particularly, auxiliary RS frame decoder 117, by forming auxiliary RS frame in groups to multiple data group, subsequently, carries out error correction in units of auxiliary RS frame.In other words, auxiliary RS frame decoder 117 aligns the auxiliary RS frame be sent out for Mobile audio frequency business datum, mobile video business datum, guidance data etc. and decodes.Export the auxiliary RS frame of being decoded by auxiliary RS frame decoder 117 to auxiliary RS frame buffer 132.Auxiliary RS frame buffer 132 carries out buffer memory to auxiliary RS frame, then with each behavior unit configuration M/H TP.The M/H TP of auxiliary RS frame exports TP processor 133 to.
TP processor 133 comprises TP buffer and TP resolver.TP processor 133 carries out buffer memory to the M/H TP from main RS frame buffer 131 and the input of auxiliary RS frame buffer 132, then extracts and analyzes each header of the M/H TP of buffer memory, thus recovers IP datagram from each payload of the M/H TP of correspondence.Export the IP datagram of recovery to IP datagram processor 141.
IP datagram processor 141 comprises IP datagram buffer and IP datagram resolver.IP datagram processor 141 carries out buffer memory to the IP datagram sent from TP processor 133, then extracts and analyzes the header of the IP datagram of buffer memory, thus recovers UDP datagram from the payload of the IP datagram of correspondence.Export the UDP datagram of recovery to UDP datagram processor 143.
If UDP datagram is by scrambling, then carries out descrambling by the UDP datagram of descrambler 142 pairs of scramblings, and export the UDP datagram of descrambling to UDP datagram processor 143.Such as; when the UDP datagram among the IP datagram received is by scrambling; descrambler 142 carries out descrambling by inputting encryption key etc. from service protection stream processing 146 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.UDP datagram processor 143 carries out buffer memory to the UDP datagram sent from IP datagram processor 141 or descrambler 142, then the header of the UDP datagram of buffer memory is extracted and analyzed, thus the data that recovery is transmitted by the payload of the UDP datagram of correspondence.If the data recovered are RTP/RTCP datagrams, then export the data of recovery to RTP/RTCP packet processing machine 144.If the data recovered also are NTP datagrams, then export the data of recovery to NTP packet processing machine 145.In addition, if the data recovered are service protection stream, then the data of recovery are exported to service protection stream processing 146.Further, if the data recovered are ALC/LCT stream, then the data of recovery are exported to ALC/LCT stream processing 148.
RTP/RTCP packet processing machine 144 comprises RTP/RTCP datagram buffer and RTP/RTCP datagram resolver.The data of the RTP/RTCP structure that RTP/RTCP packet processing machine 144 buffer memory exports from UDP datagram processor 143, then flow from the extracting data A/V of buffer memory, thus export the A/V stream of extraction to A/V decoder 161.
A/V decoder 161 utilizes Voice & Video decoding algorithm to decode to the audio and video stream exported from RTP/RTCP packet processing machine 144 respectively.The Voice & Video data of decoding are exported to and presents manager 170.Herein, at least one in AC-3 decoding algorithm, MPEG 2 audio decoder algorithm, MPEG 4 audio decoder algorithm, AAC decoding algorithm, AAC+ decoding algorithm, HE AAC decoding algorithm, AAC SBR decoding algorithm, MPEG surround decoder algorithm and BSAC decoding algorithm audio decoder algorithm can be used as, and at least one in MPEG 2 video decode algorithm, MPEG 4 video decode algorithm, H.264 decoding algorithm, SVC decoding algorithm and VC-1 decoding algorithm video decode algorithm can be used as.
NTP packet processing machine 145 comprises NTP datagram buffer and NTP datagram resolver.NTP packet processing machine 145 buffer memory has the data of NTP structure, and these data export from UDP datagram processor 143.Then, NTP packet processing machine 145 flows from the extracting data NTP of buffer memory.Thereafter, the NTP stream of extraction is exported to A/V decoder 161 to decode.
Service protection stream processing 146 can also comprise service protection stream damper.Herein, service protection stream processing 146 buffer memory is for carrying out the data of (or required) specified by service protection, and these data export from UDP datagram processor 143.Subsequently, service protection stream processing 146 carries out needed for descrambling from extracted extracting data information.The information of carrying out needed for descrambling comprises key value, such as SKTM and LKTM.The information being used for descrambling is stored in the second memory cell 147, when needed, exports the information being used for descrambling to descrambler 142.
ALC/LCT stream processing 148 comprises ALC/LCT stream damper and ALC/LCT stream analyzer.Further, ALC/LCT stream processing 148 buffer memory has the data of ALC/LCT structure, and these data export from UDP datagram processor 143.Then, ALC/LCT stream processing 148 analyzes header and the header extension of the ALC/LCT session of the data from buffer memory.Based on the header of ALC/LCT session and the analysis result of header extension, when the data being just transferred into ALC/LCT session correspond to XML structure, export the data of correspondence to XML parser 150.Alternatively, when the data being just transferred into ALC/LCT session correspond to file structure, the data of correspondence are exported to file decoder 162.Now, when the data being just transferred into ALC/LCT session are compressions, are decompressed by the data of decompressor 149 to compression, thus export XML parser 150 or file decoder 162 to.
XML parser 150 is analyzed the XML data transmitted by ALC/LCT session.Then, when the data analyzed are corresponding with the data of specifying the business based on file, XML parser 150 exports the data of correspondence to FDT processor 151.On the other hand, if the data analyzed are corresponding with the data of specifying business guide, XML parser 150 exports the data of correspondence to SG processor 165.FDT processor 151 is analyzed and is processed the file description table of Transport FLUTE protocol, and it is transmitted by ALC/LCT session with XML structure.
SG processor 165 is collected and is analyzed the data of specifying business guide, and these data transmit with XML structure, thus exports the data of analysis to Service Manager 122.
Decoded data to having file structure and the decoding data sent by ALC/LCT session, thus are sent to middleware engine 164 or decoded data are stored in the 3rd memory cell 163 by file decoder 162.Herein, middleware engine 164 instrument of interpretation structured data (that is, apply) and perform the application explained.Thereafter, the output device exporting such as display screen or loud speaker to will can be applied by presenting manager 170.According to an embodiment of the invention, middleware engine 164 corresponds to the middleware engine based on JAVA.
Based on user's input, EPG manager 171 receives EPG data by Service Manager 122 or by SG processor 165, with the EPG data transaction that will receive to display format, thus the data of conversion is exported to and presents manager 170.
Application manager 172 performs the overall management relevant to the process of the application data sent according to Format Object, file format etc.In addition, based on by UI manager 173 input user instruction, operation control 100 service control manager 122, EPG manager 171, application manager 172 and present in manager 170 at least one, with make it possible to perform user request function.User's input is transferred to operation control 100 by UI by UI manager 173.
Finally, manager 170 is presented by loud speaker and/or display screen by the voice data exported from A/V decoder 161 and video data and be provided to user from least one the EPG data that EPG manager 171 exports.
data format structures
Meanwhile, the data structure used 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 is exemplified with the example arrangement of data group according to the present invention.Fig. 2 shows the example data group of data structure according to the present invention being divided into 10 M/H blocks (that is, M/H block 1 (B1) is to M/H block 10 (B10)).In this example, each M/H block length is 16 sections.With reference to Fig. 2, only RS parity data is distributed to M/H block 1 (B1) before the part of 5 sections after 5 sections and M/H block 10 (B10).RS parity data is not comprised in region A to the D of data group.More particularly, when supposing a data group to be divided into region A, B, C and D, each M/H block can be included in from region A to any one of region D according to the characteristic of each M/H block in this data group.
In this article, data group is divided into and will be used to multiple regions of different purposes.More particularly, compared with the region with high levels of interference, can think that the region of the main business data not disturbing or have extremely low annoyance level has (or stronger) receptivity of stronger resistance.In addition, when being used in data group the system inserting and send given data (wherein, given data is known based on the agreement between transmitting system and receiving system), and when longer given data in succession periodically will be inserted in mobile service data, the given data with predetermined length periodically can be inserted in the region of not acceptor's business datum interference (that is, not being mixed with the region of main business data).But, due to the interference of main business data, be difficult to region given data being periodically inserted into the interference of acceptor's business datum, and be also difficult to the region longer given data being in succession inserted into the interference of acceptor's business datum.
Correspond to the region of not acceptor's business datum interference to M/H block 7 (B7) with reference to Fig. 2, M/H block 4 (B4).M/H block 4 (B4) in data group shown in Fig. 2 corresponds to the region of the interference not occurring coming autonomous traffic data to M/H block 7 (B7).In this example, longer given data sequence is all inserted in the initial sum ending of each M/H block.In the description of the invention, the region representation of M/H block 4 (B4) to M/H block 7 (B7) will be comprised for " region A (=B4+B5+B6+B7) ".As mentioned above, when this data group comprises the region A of the longer given data sequence with the initial sum ending being inserted in each M/H block, receiving system can perform equilibrium by using the channel information that can obtain from this given data.Therefore, (or obtaining) the strongest equalization performance can be obtained from the region of region A to region D.
In the example of the data group shown in Fig. 2, M/H block 3 (B3) and M/H block 8 (B8) are corresponding to having little region carrying out the interference of autonomous traffic data.In this article, only longer given data sequence is inserted in one end of each M/H block B3 and B8.More particularly, owing to carrying out the interference of autonomous traffic data, insert longer given data sequence in the ending of M/H block 3 (B3), and insert another longer given data sequence in the initial of M/H block 8 (B8).In the present invention, will comprising the region representation of M/H block 3 (B3) and M/H block 8 (B8) for " region B (=B3+B8) ".As mentioned above, when this data group comprises the region B of the longer given data sequence with the one end (initial or ending) being only inserted in each M/H block, receiving system can perform equilibrium by using the channel information that can obtain from this given data.Therefore, compared with the C/D of region, the equalization performance that (or obtaining) is stronger can be obtained.
Reference Fig. 2, M/H block 2 (B2) corresponds to M/H block 9 (B9) has the stronger region carrying out the interference of autonomous traffic data compared with the B of region.Longer given data sequence all can not be inserted in the either end of M/H block 2 (B2) and M/H block 9 (B9).In this article, the region comprising M/H block (B2) and M/H block 9 (B9) is called " region C (=B2+B9) ".Finally, in the illustrated example shown in fig. 2, M/H block 1 (B1) corresponds to M/H block 10 (B10) and have the stronger region carrying out the interference of autonomous traffic data compared with the C of region.Similarly, longer given data sequence can not be inserted in the either end of M/H block 1 (B1) and M/H block 10 (B10).In this article, the region comprising M/H block 1 (B1) and M/H block 10 (B10) is called " region D (=B1+B10) ".Because region C/D and this given data sequence are separated by farther, therefore when channel circumstance stands frequent and unexpected change, the receptivity deterioration of region C/D can be made.
In addition, this data group comprises appointment (or distribution) the signaling information region of signaling information.In the present invention, signaling information region can from the first paragraph of 4M/H block (B4) to a part for second segment.According to an embodiment of the invention, the signaling information region for inserting signaling information can from the first paragraph of 4M/H block (B4) to a part for second segment.More particularly, 276 (=207+69) individual byte of the 4M/H block (B4) in each data group is appointed as signaling information region.In other words, signaling information region is made up of 207 bytes of the 1st section of 4M/H block (B4) and front 69 bytes of the 2nd section.The 1st section of 4M/H block (B4) corresponds to the 17th section or the 173rd section of VSB field.
In this article, can be identified by according to two kinds of dissimilar signaling channel datas (that is, transformation parameter channel (TPC) data and fast information channel in dab receiver (FIC) data) signaling data that signaling information region sends.
And TPC data comprise the parameter mainly used in physical layer block.Further, send due to TPC data non-interleaved, TPC data can be visited in units of time slot in receiving system.FIC data are provided to obtain to make receiving system can perform fastext.In this article, FIC data comprise the cross-layer information between physical layer and upper strata.In units of subframe, FIC data are interweaved and then sent.
Such as, as shown in Figure 2, when data group comprises 6 given data sequences, signaling information region is between the first given data sequence and the second given data sequence.More particularly, in last 2 sections of 3M/H block (B3), insert the first given data sequence, and insert the second given data sequence in the 2nd and the 3rd section of 4M/H block (B4).In addition, the 3rd given data sequence is inserted respectively to the 6th given data sequence in each latter 2 sections in the 4th, the 5th, the 6th and 7M/H block (B4, B5, B6 and B7).To be separated by between 1st given data sequence and the 3rd given data sequence to the 6th given data sequence 16 sections.
Fig. 3 is exemplified with the RS frame according to an embodiment of the invention.
Under the condition that receiving system is switched to time slicing pattern, receive RS frame for each M/H frame.Each RS frame comprises the IP stream of each mobile service data or signaling data, and business mapping table (SMT) sector data may reside in whole RS frame.SMT sector data can be IP stream type, or different data types.RS frame data are dispensed to the region corresponding with multiple data group, and are sent to receiving system.
RS frame is according to the embodiment of the present invention 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.
M/H payload can comprise mobile service data and signaling data.More particularly, M/H payload can only include mobile service data, maybe can only include signaling data, or not only can comprise mobile service data but also comprise signaling data.According to the embodiment of the present invention, M/H header can identify the data type be included in M/H payload (or differentiation).More particularly, when M/H TP comprises a M/H header, this represents that this M/H payload only includes signaling data.In addition, when M/H TP comprises the 2nd M/H header, this represents that this M/H payload not only comprises signaling data but also comprise mobile service data.Finally, when M/H TP comprises the 3rd M/H header, this represents that this M/H payload only includes mobile service data.In the example depicted in fig. 3, RS frame is assigned the IP datagram (IP datagram 1) for SMT and the IP datagram (IP datagram 2 and IP datagram 3) for two kinds of types of service.
data transmission structure
Fig. 4 is exemplified with the structure of the M/H frame for sending and receive mobile service data according to 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 bag grade, a time slot is made up of 156 packets (that is, transport stream packets), and in symbol level, a time slot is made up of 156 data segments.Here, the size of a time slot corresponds to the half (1/2) of VSB field.More particularly, the packet due to 207 bytes has the data volume identical with data segment, and therefore, the packet before being interleaved also can be used as data segment.Herein, two VSB fields are carried out in groups to form VSB frame.
Fig. 5 is exemplified with the example arrangement of VSB frame, and 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 corresponds to and carries out multiplexing basic time unit to mobile service data and main business data.
In this article, a time slot or can mobile service data be comprised, or can only be made up of main business data.If front 118 packets in time slot correspond to data group, then all the other 38 data are bundled into as main business packet.In another example, when there is not data group in a slot, corresponding time slot is made up of 156 main business packets.
Meanwhile, the mobile service data in a RS frame can be assigned to the Zone Full A/B/C/D in corresponding data group, or be assigned at least one in the A/B/C/D of region.In embodiments of the present invention, the mobile service data in a RS frame can be assigned to Zone Full A/B/C/D, or be assigned at least one in region A/B and region C/D.If press latter event (that is, in region A/B and region C/D) to distribute mobile service data, then the RS frame being assigned to the region A/B in corresponding data group is different from each other with the RS frame being assigned to the region C/D in corresponding data group.
According to the embodiment of the present invention, for simplicity, the RS frame of the region A/B be assigned in corresponding data group is called " main RS frame ", the RS frame of the region C/D be assigned in corresponding data group is called " auxiliary RS frame ".In addition, main RS frame and auxiliary RS frame form (or formation) queue.More particularly, when the mobile service data in a RS frame is assigned to the Zone Full A/B/C/D in corresponding data group, a queue sends a RS frame.On the contrary, when the mobile service data in a RS frame is assigned to any one in region A/B and region C/D, a queue can send maximum 2 RS frames.More particularly, whether RS frame pattern instruction queue sends a RS frame, or whether queue sends two RS frames.This RS frame pattern is sent as TPC data.Below, table 1 shows an example of RS frame pattern.
[table 1]
Table 1 exemplified with distribution two bits to represent the example of RS frame pattern.For example, referring to table 1, when RS frame pattern value equals ' 00 ', this represents that a queue sends a RS frame.Further, when RS frame pattern value equals ' 01 ', this represents that a queue sends two RS frames, that is, main RS frame and auxiliary RS frame.More particularly, when RS frame pattern value equals ' 01 ', the data of the main RS frame for region A/B are assigned to the region A/B of corresponding data group and send.Similarly, the data of the auxiliary RS frame for region C/D are assigned to the region C/D of corresponding data group and send.
As described in the appointment in data group, also queue is designated as and separates as far as possible each other in subframe.Thus, receiving system can carry out responding rapidly and effectively to any burst error contingent in subframe.In addition, the method for specified queue can be applied to whole M/H frame in the same manner, or is differently applied to each M/H frame.According to the embodiment of the present invention, can for each M/H frame difference ground specified queue, and for the whole subframes specified queue in the same manner in M/H frame.More particularly, M/H frame structure can change in units of M/H frame.Therefore, assemblage speed (ensemble rate) can be adjusted more frequent and neatly.
That is, the concept of M/H assemblage is applied in embodiments of the present invention, thus the set (or group) of definition business.Each M/H assemblage carries identical QoS, and encodes to it with identical FEC code.And each M/H assemblage has identical unique identifier (that is, assemblage ID) and corresponding with continuous print RS frame.
Fig. 6 is exemplified with the data transmission structure in physical layer according to the embodiment of the present invention.More particularly, Fig. 6 shows and is included in each data group and an example of the FIC data be sent out.As mentioned above, the M/H frame of about 0.968 second is divided into 5 subframes, wherein, the data group corresponding with multiple assemblage is present in each subframe in combination.And, in units of M/H frame, the data group corresponding with each assemblage is interweaved, to be configured the RS frame belonging to an assemblage.In figure 6, in each subframe, there are two kinds of assemblages (wherein, NoG=4 and NoG=3).In addition, the predetermined part (such as, 37 byte/data groups) of each data group is for being conveyed through separately the FIC data of coding with RS frame data channel separation ground.The FIC region being dispensed to each data group comprises a FIC section.Herein, interweave to each FIC section in units of subframe.Such as, RS coding and SCCC coded treatment are applied to RS frame data, and RS coding and PCCC coded treatment are applied to FIC data.And, identical with FIC data, RS coding and PCCC coded treatment are applied to TPC data.More particularly, (187+P, 187)-RS coded treatment is applied to RS frame data, (51,37)-RS coded treatment is applied to FIC data, and (18,10)-RS coded treatment is applied to TPC.Herein, P is parity byte quantity.
classification signaling structure
Fig. 7 is exemplified with the classification signaling structure according to 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 utilizing FIC and business mapping table (SMT).In the description of the invention, this signaling structure is called classification signaling structure.More particularly, Fig. 7 is exemplified with providing the classification signaling structure being carried out the data needed for business acquisition by FIC block and business mapping table (SMT) in IP level mobile service signaling channel.As shown in Figure 7, FIC block utilizes its swift nature, so that the mapping relations between business and assemblage are sent to receiving system.More particularly, FIC block is located rapidly (or finding) can transmit the assemblage of the service needed for receiving system, thus provides the signaling data that receiving system can be made promptly to receive the RS frame of each assemblage to receiving system.
fast information channel in dab receiver (FIC)
In order to (or more promptly) business that accessing is being broadcasted at present more fast, receiving system according to the present invention have employed fast information channel in dab receiver (FIC).
More particularly, the FIC processor 121 of Fig. 1 is configured the FIC block from FIC section.Then, after parsing FIC block, the result of parsing is outputted to Service Manager 122 by FIC processor 121.
Fig. 8 is exemplified with the syntactic structure of the FIC block of the relation mapped by FIC between mobile service and assemblage.Herein, FIC block comprises FIC block header and FIC block payload.
Fig. 9 is exemplified with the syntactic structure of the FIC block header according to an embodiment of the invention.
Herein, FIC block header changes with the master agreement version of signal indication non-back compatible in the FIC block of correspondence, and changes with the secondary protocol version of signal indication back compatible.In addition, FIC block header also can be changed the length of the expansion that the length of expansion of the FIC block header produced, the length of the expansion of assemblage circulation header and mobile service circulate by secondary protocol version with signal indication.
According to an embodiment of the invention, the receiver (or receiving system) that corresponding secondary protocol version can be adopted to change can process corresponding extended field, and the receiver of the tradition (routine) that corresponding secondary protocol version can not be adopted to change can by utilizing the length information of each correspondence to skip corresponding extended field.Such as, when receiving system can accept corresponding secondary protocol version change, the direction provided in the extended field of correspondence can be known.In addition, receiving system can carry out executable operations according to the direction provided in the extended field of correspondence.
According to an embodiment of the invention, by inserting the secondary protocol version that added field performs in FIC block and change being included in the ending of FIC block header of last secondary protocol version FIC block, assemblage circulation header and mobile service circulation place respectively.According to the embodiment of the present invention, in what its situation in office, or when can not be represented the length of (or instruction) added field by each extension length in FIC block header, or when the specific fields in FIC block payload loses (maybe cannot find), or when the definition distributing to the corresponding bit number of field or the field of correspondence changes (or change), upgrade the master agreement version of corresponding FIC block.
And, whether FIC block header carries the map information between assemblage in current M/H frame and mobile service with the data of FIC block payload corresponding to signal indication, or whether the data of the FIC block payload of correspondence carry the map information between assemblage in next M/H frame and mobile service.In addition, FIC block header also with signal indication in order to the quantity that sends the transport stream ID of the mobile service of current FIC block and the quantity of assemblage sent by corresponding mobile service.
Therefore, for this reason, FIC block 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.
FIC_major_protocol_version field corresponds to and represents the key plate of FIC block grammer other 2 bit unsigned integer field at the corresponding levels.At the corresponding levels other of key plate changes the change of the non-back compatible rank of instruction.When FIC_major_protocol_version field upgrades, the receiver that can process the previous key plate tradition (routine) originally of FIC block agreement will avoid process FIC block.
FIC_minor_protocol_version field corresponds to 3 bit unsigned integer fields of the subedition rank representing FIC block grammer.When supposing that main release level keeps identical, the change of subedition rank is by the change of instruction back compatible rank.More particularly, when upgrading FIC_minor_protocol_version field, the receiver that can process the tradition (routine) of identical key plate FIC block agreement originally can process a part of FIC block.
FIC_chunk_header_extension_length field corresponds to 3 bit unsigned integer fields of the length identifying FIC block header extension byte, is upgraded generate this field by the secondary protocol version of the FIC block of correspondence.Herein, by additional for extended byte (or increasing) ending place at the FIC block header of correspondence.
Ensemble_loop_header_extension_length field corresponds to 3 bit unsigned integer fields of the length identifying assemblage header extension byte, is upgraded generate this field by the secondary protocol version of the FIC block of correspondence.Herein, by additional for extended byte (or increasing) ending place at the assemblage circulation header of correspondence.
And M/H_service_loop_extension_length field corresponds to 4 bit unsigned integer fields of the length identifying assemblage header extension byte, upgraded by the secondary protocol version of M/H service cycle and generate this field.Herein, by additional for extended byte (or increasing) ending place at the M/H service cycle of correspondence.
Current_next_indicator field corresponds to 1 bit indicator, and wherein, when being set to " 1 ", the FIC block of its instruction correspondence is current is applicable.Alternatively, when current_next_indicator field is set to " 0 ", the FIC block of current_next_indicator field instruction correspondence will be applied to next M/H frame.Herein, when current_next_indicator field is set to " 0 ", the nearest version of the FIC block transmitted with the current_next_indicator field being set to " 1 " will be current applicable.More particularly, when current_next_indicator field is set to " 1 ", the FIC block of this instruction correspondence sends the signaling data of current M/H frame.In addition, when current_next_indicator field is set to " 0 ", the FIC block of this instruction correspondence sends the signaling data of next M/H frame.When reconfiguring, wherein, assemblage in current M/H frame and the map information between mobile service are different from the map information between assemblage in next M/H frame and mobile service, M/H frame before reconfiguring is called current M/H frame, and the M/H frame after reconfiguring is called next M/H frame.
Transport_stream_id field corresponds to 16 bit unsigned integer fields, and it serves as the mark for identifying corresponding M/H broadcast.The value of corresponding transport_stream_id field will equal the value of the transport_stream_id field be included in the Program Association Table (PAT:program association table) of the mpeg 2 transport stream that main ATSC broadcasts.
Num_ensembles field corresponds to 8 bit unsigned integer fields, the quantity of the M/H assemblage that its instruction is carried by the used physical transmission channel of correspondence.
Figure 10 exemplified with according to the embodiment of the present invention when use FIC block grammer and protocol version structure time protocol version exemplary change.
Structure shown in Figure 10 comprises 2 assemblages (that is, assemblage 0 and assemblage 1)., send two mobile services by assemblage 0 herein, and send a mobile service by assemblage 1.At this moment, when the secondary protocol version of FIC block changes, the value of FIC_minor_protocol_version field increases, and indicates this increase.And, respectively by the extended byte length information separately of the extended byte of FIC block header, the extended byte of assemblage circulation header and the mobile service circulation that the FIC_chunk_header_extension_length field of FIC block header, ensemble_loop_header_extension_length field, M/H_service_loop_extension_length field are increased by corresponding secondary protocol version with signal indication.More particularly, represent each length information with signal, make the traditional receiver can not continuing to use corresponding secondary protocol version change can skip corresponding extended byte.
When Figure 10, the value of the FIC_minor_protocol_version field of FIC block changes to " 001 " from " 000 ".Further, 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 block header to the secondary protocol version changed.Now, when FIC block header extension 1 byte, 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 block header.And the extended field of 1 byte at the end place being increased in FIC block header skipped by traditional receiver, and do not process corresponding extended field.
In addition, when assemblage circulation header extension 2 bytes in FIC block, FIC_chunk_header_extension_length field is marked as " 010 ".In this case, the extended field (that is, Ensemble_loop_header_extension_bytes field) of 2 bytes is added into respectively the circulate end of header and assemblage 1 of assemblage 0 to circulate the end of header.And traditional receiver is skipped and is increased in the circulate end place of header and assemblage 1 of assemblage 0 respectively and circulates the extended field of 2 bytes at end place of header, and does not process the extended field of 2 corresponding bytes.
In addition, when mobile service cyclic extensions 1 byte of FIC block, M/H_service_loop_extension_length field is marked as " 001 ".In this case, the end place extended field (that is, M/H_service_loop_extension_bytes field) of 1 byte being added into respectively 2 the mobile service circulations sent in cycles by assemblage 0 and the end place of being circulated by 1 mobile service that assemblage 1 sends in cycles.And, the extended field of 1 byte at the end place of 1 mobile service circulation that traditional receiver is skipped the end place that is added into 2 the mobile services circulations sent in cycles by assemblage 0 respectively and sent in cycles by assemblage 1, and do not process the extended field of 1 corresponding byte.
Figure 11 is exemplified with the example process of the process FIC block when the secondary protocol version information of FIC block as shown in Figure 10 changes.When FIC_minor_protocol_version field change, the field that receiver (that is, the receiver that can not change along the secondary protocol version be used in the corresponding FIC block) process of tradition (or, conventional) is separated 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, to skip corresponding extended field, and do not process corresponding field.When the receiving system using the secondary protocol version continuing to use the correspondence of FIC block to change, each length field is for the treatment of even corresponding extended field.
Figure 12 is exemplified with the exemplary syntax structure of the FIC block payload according to an embodiment of the invention.For each assemblage corresponding with the num_ensembles field in the FIC block header of Fig. 9, FIC block payload comprises the configuration information of each assemblage and the information about the mobile service sent by each assemblage.FIC block payload comprises the mobile service circulation under assemblage circulation and the circulation of this assemblage.FIC block payload makes receiver can determine (or expectation) mobile service sent request by which assemblage.(performing this process by the mapping between ensemble_id field and M/H_service_id field).Thus, receiver can receive the RS frame of the assemblage belonging to corresponding.
For this reason, the assemblage circulation of FIC block 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 num_ensembles field value jointly.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 num_M/H_services field value jointly.
Ensemble_id field corresponds to 8 bit unsigned integer fields, unique identifier of the assemblage that its instruction is corresponding.Such as, can to the value in the scope of ensemble_id field distribution " 0x00 " to " 0x7F ".Mobile service carries out in groups with each assemblage (or association) by ensemble_id field.Herein, preferably, the parade_id field carrying (or transmission) by TPC data institute obtains the value of ensemble_id field.If send corresponding assemblage by main RS frame, then highest significant position is set to " 0 ", and remaining low order is used as the parade_id field value of corresponding queue., if send corresponding assemblage by auxiliary RS frame, then highest significant position is set to " 0 " meanwhile, and remaining low order is used as the parade_id field value of corresponding queue.
Ensemble_major_protocol_version field corresponds to 2 bit unsigned integer fields, and it represents the other version of main (particularly, corresponding RS frame structure and mobile service structure) of corresponding assemblage structure.Herein, the change of master agreement version is by the change of the non-back compatible rank of instruction.
Ensemble_minor_protocol_version field corresponds to 3 bit unsigned integer fields, and it represents the secondary version (particularly, each RS frame structure and each M/H traffic signaling channel) of corresponding assemblage structure.Suppose that main release level remains unchanged, then the change of secondary protocol version level is by the change of instruction back compatible rank.Herein, ensemble_structure_major_version field and ensemble_structure_minor_version field can be omitted from FIC block payload.
SLT_ensemble_indicator field corresponds to 1 bit indicator, wherein, when being set to " 1 ", by instruction bearer service label list (SLT) in the M/H traffic signaling channel of the assemblage of correspondence.
GAT_ensemble_indicator field corresponds to 1 bit indicator, wherein, when being set to " 1 ", instruction is carried guide access list (GAT) in the signaling flow of the assemblage of correspondence.
M/H_service_configuration_version field corresponds to 5 bit fields, the version number of each M/H traffic signaling channel of the M/H assemblage that its instruction is corresponding.The value of M/H_service_configuration_version field is " to 32 deliverys ", and when any table carried in the M/H traffic signaling channel of the assemblage of correspondence changes, the value of this field increases progressively (or increase) in units of 1.
Num_M/H_services field corresponds to 8 bit unsigned integer fields, and it represents the quantity of the M/H business carried by the M/H assemblage of correspondence.Such as, when the secondary protocol version of FIC block changes, and if extended field is added into assemblage circulation header, then after num_M/H_services field, extended field is increased.
Such as, when the secondary protocol version in FIC block header changes, and when extended field being added into assemblage circulation header, after extended field is increased in and follows num_M/H_services field closely.According to another implementation of the invention, if num_M/H_services field is included in mobile service circulation, then the extended field that will increase in assemblage circulation header is increased in after following M/H_service_configuration_version field closely.
The M/H_service_id field of mobile service circulation corresponds to 16 bit unsigned integer fields, and it identifies corresponding M/H business.The value of M/H_service_id field (or, number) is unique moving in (M/H) broadcast.When M/H business has composition in multiple M/H assemblage, the independent business that the set that the IP corresponding with the business in each assemblage flows will be regarded as signaling, exception be for the entry of the business of correspondence, all there is identical M/H_service_id field value in FIC.Thus, identical M/H_service_id field value can appear in more than one num_ensembles circulation.Further, therefore, M/H_service_id field value will represent the business of all combinations, thus keeps the uniqueness of M/H_service_id field value.
Multi_ensemble_service field corresponds to the field that 2 bits calculate, and it identifies whether to carry corresponding M/H business by more than one M/H assemblage.And multi_ensemble_service field identifies whether only on purpose to express M/H business by a part of M/H business that the M/H assemblage by correspondence carries.
M/H_service_status field corresponds to 2 bit enumerated field, and it identifies the state of corresponding M/H business.Such as, the M/H business that the highest significant position instruction of M/H_service_status field is corresponding activates (when being set to " 1 ") or nonactivated (when being set to " 0 ").In addition, whether the M/H business that least significant bit instruction is corresponding is hiding (when being set to " 1 ") or not hiding (when being set to " 0 ").SP_indicator field corresponds to 1 bit field, and wherein, when being set to " 1 ", whether the protection of its indicating services is applied to the important of the M/H business providing corresponding presents at least one required composition.
Such as, when the secondary protocol version of FIC block changes, and if extended field is added into mobile service circulation, then after extended field being added into SP_indicator field.
And FIC block payload can comprise FIC_chunk_stuffing () field.In order to make the border of FIC block keep aliging with belonging to last the FIC section boundary among the FIC section of FIC block, the filling (stuffing) of FIC_chunk_stuffing () field may reside in FIC block.The length of filling is determined by how many spaces remaining after resolving whole FIC block payload before filling.
Now, as shown in figure 13, FIC block is divided into multiple FIC section by transmitting system (not shown) according to the present invention, thus exports the FIC section of division to receiving system in units of 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, as shown in Figure 13 (a), FIC block comprises FIC block header and FIC block payload, as shown in Figure 13 (b), in units of 35 bytes, carries out segmentation to FIC block.And, as shown in Figure 13 (c), FIC section is configured to the FIC section header increasing by 2 bytes at each section of 35 byte unit above.
According to an embodiment of the invention, the length of FIC block payload is variable.Herein, the change of the length of FIC block is determined by the quantity of the assemblage that corresponding used physical transmission channel sends and is included in the quantity of the mobile service in each assemblage.
And FIC block payload can comprise padding data.In this case, according to the embodiment of the present invention, padding data is used for FIC block and is belonging to the aligning of last the FIC section boundary among the FIC section of FIC block.Therefore, by the length of padding data being minimized, the unnecessary waste of FIC section can be reduced.
Herein, the quantity by utilizing following equation 1 can calculate the padding data inserted in FIC block.
equation 1
Quantity=the 35-j of padding data byte
J=(5+ is inserted in the quantity of the signaling data byte in FIC block payload) is to 35 deliverys
Such as, when the header of 5 bytes increased in FIC block equals 205 byte with the total length of the signaling data being inserted in the payload in FIC block, because j equals 30 in equation 1, so the payload of FIC block can comprise the padding data of 5 bytes.And the length comprising the FIC block payload of padding data equals 210 bytes.Thereafter, FIC block is divided into 6 FIC sections, is then sent.Herein, segment number is sequentially distributed to each section of 6 the FIC sections divided from FIC block.
In addition, as shown in figure 14, the FIC section divided from single FIC block can be sent to single subframe by the present invention, or the FIC section of division can be sent to multiple subframe.If FIC block carries out dividing and is sent to multiple subframe by situation as shown in figure 14 below like that, even if when the quantity of the data sent by FIC block is greater than the quantity of the FIC section sent by single subframe (this situation correspond to when execution is multiple there is the business of low-down bit rate time), required signaling data can all be sent by FIC block.
Figure 14, exemplified with when the TNoG of corresponding mobile broadcast equals " 6 ", carries out an example of the data of the FIC block sent by 4 FIC sections.
More particularly, Figure 14 shows an example of the FIC block being transmitted repeatedly twice.With reference to Figure 14, all FIC sections divided from FIC block are sent by 2 subframes (subframe 1 and subframe 2), and all FIC sections divided from FIC block send by means of only (subframe 1) of 2 subframes.More particularly, the present invention points out to send multiple FIC block by single subframe.In fig. 14, the content of 2 FIC blocks can be mutually the same or can be different from each other.
Herein, the number table of FIC section indicated is in fig. 14 shown in the numbering of the FIC section in each FIC block, is not the FIC segment number in each subframe.Thus, the subordinate relation between FIC block and subframe can be eliminated, thus reduce the excessive waste of FIC section.
In addition, the present invention can increase empty FIC section.Regardless of the transmission of the repetition of FIC block, and when needing to fill in the M/H frame in correspondence, use sky FIC section to process remaining FIC section.Such as, suppose that TNoG equals " 3 " and FIC block is divided into 2 FIC sections.Herein, when repeatedly sending FIC block by 5 subframes in single M/H frame, only send two FIC sections by the subframe (such as, being positioned at the subframe of last tagmeme with time sequencing) in 5 subframes.In this case, an empty FIC section is distributed to corresponding subframe, thus send.More particularly, this sky FIC section is used for the border of the border of FIC block and M/H frame to aim at.Now, because empty FIC section is not the FIC section divided from FIC block, so FIC segment number is not distributed to sky FIC section.
In the present invention, when single FIC block is divided into multiple FIC section, and when the FIC section after dividing to be included in each data group of at least one subframe in M/H frame to transmit, with the FIC section that the contrary order-assigned from the last subframe in the M/H frame of correspondence is corresponding.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, so the empty FIC section of correspondence can send as last (or final) section.
Figure 15 passes through exemplified with when the TNoG of corresponding mobile broadcast equals " 6 " example that 8 FIC sections send the data of FIC blocks.In this case, the data volume sent by FIC block is greater than the quantity of the FIC section sent by single subframe.Herein, as shown in figure 15, owing to being sent the FIC section divided from FIC block by 2 subframes, all required signaling datas can be sent by single FIC block.And, in this case, distribute to the numbering of numbering corresponding to each FIC section be included in FIC block of each FIC section.More particularly, even if when the quantity of FIC blocks of data is greater than the quantity of the FIC segment data sent by single subframe, all FIC blocks of data also can be sent out and not leave any data division do not sent.
At this moment, do not need to enable receiving system abandon sky FIC section to process corresponding empty FIC section, the identifying information of empty FIC section that needs can identify (or differentiation).
According to one embodiment of the present invention, the present invention is used in FIC_type field in the header of sky FIC section as the identifying information for identifying empty FIC section.In this embodiment, the value of the FIC_type field in empty FIC section header is set to " 11 ", to identify corresponding empty FIC section.More particularly, when the value of the FIC_type field in empty FIC section header is set to " 11 " and is sent to receiving system, receiving system can abandon the payload that FIC_type field value is set to the FIC section of " 11 ", and does not need to process corresponding FIC section payload.Herein, value " 11 " is only provide to promote and simplify the exemplary value of understanding of the present invention.As long as pre-configured between the receiving system of establishing and transmitting system, any value that can identify empty FIC section can be specified to FIC_type field.Therefore, the present invention is not only limited to the example collection that represents in specification.In addition, another field in FIC section header also can be used to indicate the identifying information that can identify empty FIC section.
Figure 16 is exemplified with the exemplary syntax structure of the FIC section header according to 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.Each field will be described below.
FIC_type field corresponds to 2 bit fields, and when being set to " 00 ", the FIC section of instruction correspondence carries a part of FIC block.Alternatively, when FIC_type field is set to " 11 ", the FIC section of FIC_type field instruction correspondence is the empty FIC section sending padding data.Herein, its residual value is that use in the future retains.
Error_indicator field corresponds to 1 bit field, whether mistake occurs between its instruction transmission period in the FIC section of correspondence.Herein, when errors occur, error_indicator field is set to " 1 ".And when there is not (or not occurring) mistake, error_indicator field is set to " 0 ".More particularly, during the process of configuration FIC section, when there is the mistake of not repairing, error_indicator field is set to " 1 ".More particularly, error_indicator field makes receiving system can be identified in existence or the appearance of the mistake in corresponding FIC section.
FIC_segment_num field corresponds to 4 bit unsigned integer fields, the numbering of the FIC section that its instruction is corresponding.Such as, if the FIC section of correspondence is first FIC section of FIC block, then the value of FIC_segment_num field will be set as " 0x0 ".In addition, if the FIC section of correspondence is second FIC section of FIC block, then the value of FIC_segment_num field will be set as " 0x1 ".More particularly, the FIC section additional along with each in FIC block increases progressively by FIC_segment_num field in units of one.Herein, if FIC block is divided into 4 FIC sections, then the FIC_segment_num field value of last the FIC section in FIC block will be indicated as " 0x3 ".
FIC_last_segment_num field corresponds to 4 bit unsigned integer fields, and it indicates the numbering of last the FIC section (that is, having the FIC section of the highest FIC_segment_num field value) in complete FIC block.
In traditional method, sequentially specify (or distribution) FIC segment number for each FIC section in a subframe.Therefore, in this case, the numbering of last FIC section always matches (that is, the numbering of last FIC section always equals TNoG) with TNoG.But when using according to FIC numbering distribution method of the present invention, the numbering of last FIC section does not always match with TNoG.More particularly, the numbering of last FIC section can match with TNoG, or the numbering of last FIC section can not match with TNoG.TNoG represents the sum of distribution (or appointment) to the data group of single subframe.Such as, when TNoG equals " 6 ", and when FIC block is divided into 8 FIC sections, TNoG equals " 6 ", and last FIC segment number is " 8 ".
According to another embodiment of the present invention, empty FIC section can be identified by utilizing the value of the FIC_segment_num field in FIC section header.More particularly, owing to not distributing FIC segment number to empty FIC section, transmitting system is by empty data allocations to the FIC_segment_num field value of empty FIC section, and receiving system can allow to make sky data allocations be identified as sky FIC section to the FIC section of FIC_segment_num field value.Herein, the data allocations that receiving system and transmitting system can be pre-set, to FIC_segment_num field value, replaces empty data.
As mentioned above, FIC block is divided into multiple FIC section, thus is sent by single subframe or sent by multiple subframe.And, can send by single subframe the FIC section divided from single FIC block, or can send by single subframe the FIC section divided from multiple independent FIC block.Now, the numbering being dispensed to each FIC section is corresponding with the numbering (that is, FIC_seg_number value) in corresponding FIC block, and not corresponding with the numbering in corresponding subframe.And, empty FIC section can be sent to aim at the border of M/H frame and the border of FIC block.Now, FIC segment number is not dispensed to sky FIC section.
As mentioned above, a FIC block can be sent by multiple subframe, or send multiple FIC block by single subframe.But, according to the embodiment of the present invention, in units of subframe, FIC section interweaved and send.
Figure 17 exemplified with as shown in Figure 13 to Figure 15 when being sent single FIC block by multiple subframe or when sending multiple FIC block by single subframe, receive and recover an example of the receiving system of one or more FIC block.
More particularly, collect the FIC data for the signaling information region in the data group of each subframe according to the signaling decoder 118 of receiving system of the present invention, to interweave to collected data in units of subframe.Thereafter, the FIC section of signaling decoder 118 pairs of deinterleavings carries out RS decoding, thus exports the data of decoding through RS to FIC processor 121.The FIC segment buffer of FIC processor 121 stores the FIC section through RS decoding temporarily, then exports the FIC section temporarily stored to FIC section resolver.FIC section resolver extracts and analyzes FIC section header.Subsequently, based on the result analyzed, the FIC section forming single FIC block collected by FIC section resolver.Thereafter, FIC section resolver removes the FIC section header of the FIC section collected by (or abandoning), thus recovers (or formation) single FIC block.
Such as, FIC section resolver utilizes the FIC_segment_num field in FIC section header and FIC_last_segment_num field to collect the FIC section of a formation FIC block.Then the FIC block of recovery is exported to FIC block resolver.FIC block resolver extracts and analyzes the header of the FIC block be transfused to.Then, based on the result analyzed, FIC block resolver extracts the signaling data in the payload being included in corresponding FIC block, thus exports the signaling data of extraction to Service Manager 122.
More particularly, FIC section resolver extracts and analyzes the header being buffered the FIC section be then transfused to.Thereafter, FIC section resolver search (or location) FIC_segment_num field value is the FIC section (that is, comprising the FIC section of the first character joint of FIC blocks of data) of " 0 ".Once FIC section resolver located first FIC section of FIC block, FIC section resolver is sequentially collected from first FIC section to the data of 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, to form FIC block, thus exports the FIC block of formation to FIC block resolver.
Such as, as shown in figure 17, suppose that the TNoG of corresponding mobile broadcast equals " 6 ", and FIC block is divided into 5 FIC sections to transmit.With reference to Figure 17, or transmitted the FIC section of a FIC block by 2 subframes, or the FIC section of 2 FIC blocks is sent to a subframe.But, be apparent that, in units of subframe, carry out deinterleaving process.And, be 5 FIC sections of the FIC section of " 4 " to FIC_segment_num field value collecting the FIC section being " 0 " from FIC_segment_num field value.Thereafter, when removing the FIC section header of each FIC section, a FIC block has been recovered.More particularly, when have collected the payload of all 5 FIC sections, recover (or formation) FIC block.Now, sky FIC section is identified by the FIC_type field in the empty FIC section header of correspondence.But empty FIC section is dropped, and does not use in FIC block Recovery processing.
Figure 18 is exemplified with when transmitting FIC block by 8 FIC sections, and when the TNoG of corresponding mobile broadcast equals " 6 ", receiving system receives FIC section to recover an example of FIC block.
And, in figure 18, although transmitted the FIC section of a FIC block by 2 subframes, be apparent that, in units of subframe, carry out deinterleaving process.Because the FIC block Recovery processing of Figure 18 is identical with the FIC block Recovery processing of Figure 17, reference can be carried out to Figure 17, and the specific descriptions will omitted same section for simplicity.
More particularly, be 8 FIC sections of the FIC section of " 7 " to FIC_segment_num field value collecting the FIC section being " 0 " from FIC_segment_num field value.Thereafter, when removing the FIC section header of each FIC section, a FIC block has been recovered.More particularly, when have collected the payload of 8 FIC sections, recover (formation) FIC block.Now, sky FIC section is identified by the FIC_type field in the empty FIC section header of correspondence.But empty FIC section is dropped, and does not use in FIC block Recovery processing.
Meanwhile, suppose to transmit multiple FIC blocks separately with different protocol versions by a M/H frame, and receiving system can process all FIC blocks separately with different protocol versions.Now, when the FIC section separately with different protocol versions divided from multiple FIC block be received normally and without any mistake time, receiving system can perform normal recovery to the multiple FIC blocks separately with different protocol versions.But if there is the mistake caused by burst noise in multiple FIC blocks separately with different protocol versions, then receiving system can not perform normal recovery to multiple FIC blocks separately with different protocol versions.
Such as, supposing to be the FIC block of " 00 " and master agreement version by master agreement version is that the FIC block of " 01 " is sent to a FIC (that is, a M/H frame) simultaneously.And, as shown in Figure 19 (a), also suppose that the mistake caused due to burst noise causes transmission master agreement version to be FIC section 4 to the FIC section 7 of the FIC block of " 00 " and sends the received system acceptance of FIC section 0 to FIC section 3 that master agreement version is the FIC block of " 01 ".
In this case, receiving system also uses FIC_segment_num field in FIC section header and FIC_last_segment_num field, with collect be " 0 " from FIC_segment_num field value FIC section be 8 FIC sections of the FIC section of " 7 " to FIC_segment_num field value.Thereafter, as shown in Figure 19 (b), remove 8 FIC sections FIC section header separately, thus form a FIC block.In this case, the FIC section being " 0 " due to FIC_segment_num field value is corresponding with the FIC section that the FIC block being " 00 " from master agreement version divides, so the master agreement version of formed FIC block is identified as " 00 ", as shown in Figure 19 (b) by receiving system.
But, when the FIC block shown in Figure 19 (b), it is corresponding that FIC section 0 to FIC section 3 with master agreement version is that the FIC section of the FIC block of " 00 " transmits data, and the FIC section that FIC section 4 to FIC section 7 is the FIC block of " 01 " with master agreement version to transmit data corresponding.Therefore, when occurring in FIC section due to burst noise to lose, the set that transmission can be had the FIC section of the FIC block of 2 kinds of different protocol versions by receiving system is identified as the set that transmission has the FIC section of the FIC block of single protocol version, thus has problems when recovering FIC block.In addition, when going wrong in FIC block Recovery processing as mentioned above, receiving system can not identify and correctly not perform the recovery of FIC block.Therefore, receiving system can obtain the RS frame corresponding with the assemblage of asked mobile service, thus causes very serious problem.
In order to solve the problem, the present invention transmits the protocol version information of FIC block by the FIC section header of each FIC section.According to the embodiment of the present invention, the protocol version information of FIC block transmitted by FIC section header is corresponding with at least one in the master agreement version information of corresponding FIC block and secondary protocol version information.
Figure 20 is exemplified with the syntactic structure of the FIC section header according to another embodiment of the present invention.Herein, FIC_Chunk_major_protocol_version field is added in addition the syntactic structure of the FIC section header shown in Figure 16.
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 FIC_Chunk_major_protocol_version field, all the other fields are identical with the field described in Figure 16.Therefore, for the sake of simplicity, the specific descriptions of identical content will be omitted in fig. 20.
According to an embodiment of the invention, FIC_Chunk_major_protocol_version field corresponds to 2 bit fields, the master agreement version of the FIC block that its instruction is corresponding.More particularly, the FIC_Chunk_major_protocol_version field in FIC section header has the value identical with the FIC_major_protocol_version field in corresponding FIC block header.Master agreement version for FIC block grammer can with reference to the description of the FIC block header in Fig. 9.Therefore, the specific descriptions of identical content will be omitted at this for the sake of simplicity.
Figure 21 is exemplified with receiving the FIC section of the FIC section header had as shown in figure 20 and recovering an example of FIC block.In this case, also multiple FIC block is supposed (such as, 2 FIC blocks) be sent to a FIC (namely, a M/H frame), each master agreement version of two FIC blocks is different from each other, and receiving system can process two FIC blocks separately with different master agreement versions.
More particularly, as shown in Figure 21 (a), suppose to be the FIC block of " 00 " and master agreement version by master agreement version to be that (namely the FIC block of " 01 " is sent to a FIC simultaneously, a M/H frame), and due to the mistake that burst noise causes, receiving system does not receive for sending FIC section 4 to FIC section 7 that master agreement version is the FIC block of " 00 " and for sending FIC section 0 to the FIC section 3 that master agreement version is the FIC block of " 01 ".
Now, receiving system utilizes the FIC_segment_num field in FIC section header, FIC_last_segment_num field and FIC_Chunk_major_protocol_version field to recover FIC block.
More particularly, due to different from from the FIC section 4 initial FIC_Chunk_major_protocol_version field value to FIC section 7 difference from the initial FIC_Chunk_major_protocol_version field value to FIC section 3 of FIC section 0, although FIC segment number is continuous print, if but FIC block protocol version is different from each other, then data can not form single FIC block.
As shown in Figure 21 (b), according to the FIC processor 121 of receiving system of the present invention collect from FIC_segment_num field value be the FIC section of " 0 " initial be 4 FIC sections of the FIC section of " 3 " to FIC_segment_num field value.Thereafter, remove 4 FIC sections FIC section header separately, thus form the FIC block that master agreement version is " 00 ".In addition, FIC processor 121 collect from FIC_segment_num field value be the FIC section of " 4 " initial be 4 FIC sections of the FIC section of " 7 " to FIC_segment_num field value.Thereafter, remove 4 FIC sections FIC section header separately, thus form the FIC block that master agreement version is " 01 ".
Therefore, can prevent following problem: when occurring in FIC section due to burst noise to lose, the set that transmission can be had the FIC section of the FIC block of 2 kinds of different protocol versions by receiving system is identified as the set that transmission has the FIC section of the FIC block of single protocol version.
More particularly, by even distributing the protocol version information of corresponding FIC block in FIC section header, even if receive the mixture of the multiple FIC sections corresponding from the FIC block in single M/H frame with different protocol versions, the present invention also only can collect the FIC section corresponding with identical protocol version, thus recovers FIC block.
Now, when FIC block is resumed, as shown in figure 21, FIC block is not always completely recovered.Such as, master agreement version be the FIC lost block of " 00 " from FIC_segment_num field value be the FIC section of " 4 " initial be 4 FIC sections of the FIC section of " 7 " to FIC_segment_num field value.In addition, master agreement version be the FIC lost block of " 01 " from FIC_segment_num field value be the FIC section of " 1 " initial be 4 FIC sections of the FIC section of " 3 " to FIC_segment_num field value.
Therefore, according to the embodiment of the present invention, FIC block is not resumed in this case.More particularly, when have collected all FIC sections with identical master agreement version, and when the quantity of collected FIC section is less than the quantity of the FIC section divided from the FIC block of correspondence, then corresponding FIC block is not resumed.
Now, collection FIC section can be performed to recover the process of a FIC block in units of single subframe or in units of single M/H frame.This is because identical FIC block can repeat, then transmit in single subframe, and because identical FIC block can repeat, then transmit in single M/H frame.In addition, can be also unit with the subframe of predetermined (or preassigned) quantity or be that unit performs the process of collecting FIC section with the M/H frame of predetermined (or preassigned) quantity.
In addition, according to an embodiment of the invention, to suppose in single M/H frame simultaneously and deposit the FIC block with another master agreement version, and receiving system can process two kinds of FIC blocks separately with different master agreement versions.In this case, check the current FIC segment number of each FIC section, the numbering of last FIC section and master agreement version, so the FIC section with the master agreement version identical with the master agreement version of receiving system can be collected, thus form FIC block.
Alternatively, when supposing that existence has the FIC block of another master agreement version in single M/H frame simultaneously, and suppose that receiving system only can process one in two kinds of master agreement versions, from representing that with signal the FIC section of its accessible master agreement version is to recover FIC block.
Meanwhile, as mentioned above, the present invention uses FIC block, to send mapping (or configuration) information between assemblage and mobile service in M/H frame.Herein, when there is reconstruct, wherein, assemblage in current M/H frame and the map information between mobile service are different from the map information between assemblage in next M/H frame and mobile service, the present invention can use at least one the FIC block from M/H frame before the reconstruct of correspondence, to use the map information of signal indication in M/H frame between assemblage and mobile service (or performing signaling in advance) in advance, reconstruct in this M/H frame.In describing the invention, the M/H frame before reconstruct being occurred is called current M/H frame, and the M/H frame after reconstruct occurs is called next M/H frame.
In addition, according to the embodiment of the present invention, from single M/H frame be alternately sent in current M/H frame with the FIC block of the map information between signal indication assemblage and mobile service and in next M/H frame with the FIC block of the map information between signal indication assemblage and mobile service.Herein, according to the embodiment of the present invention, be placed in next M/H frame with after the FIC block of the map information between signal indication assemblage and mobile service in current M/H frame with the FIC block of the map information between signal indication assemblage and mobile service according to time order and function order, and to transmit after the FIC block of the map information between signal indication assemblage and mobile service in current M/H frame.More particularly, it is interior with the FIC block of the map information between signal indication assemblage and mobile service that first receiving system is received in current M/H frame, is then received in after a while in next M/H frame with the FIC block of the map information between signal indication assemblage and mobile service.
Now, when reception FIC block when recovering it, the FIC processor 121 of receiving system utilizes the current_next_indicator field in the FIC block header recovered, to determine that the signaling information be included in the payload of each FIC block is corresponding to the map information between the assemblage in current M/H frame and mobile service or the map information between the assemblage corresponded in next M/H frame and mobile service.For the sake of simplicity, below by the assemblage configuration information of the map information between the assemblage in M/H frame and mobile service also referred to as M/H frame.
Figure 22 is exemplified with the exemplary situation that reconstruct occurs, and 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 ... " the part of instruction represents each M/H frame.Further, in this example, reconstruct occurs in (k+2) individual M/H frame.As shown in figure 22, the M/H frame before reconstructing comprises two assemblages and seven TNoG.Further, the M/H frame after reconstructing comprises three assemblages and seven TNoG.
As shown in figure 22, when the assemblage owing to being sent to each M/H frame quantity, be sent to the quantity of the quantity of the mobile service of each assemblage and the TNoG of each subframe change and reconstruct is occurred time, master agreement version information and the secondary protocol version information of FIC block remain unchanged.But the FIC_version field value in TPC data changes.
Figure 22 FIC_version field value shown in the TPC data in (k+1) individual M/H frame is updated to the example of " 6 " after increasing (or increasing progressively) " 1 ", and the current_next_indicator field value shown in the FIC block header in (k+1) individual M/H frame change to the example of " 0 ".
Figure 23 exemplified with when there is reconstruct in (k+2) individual M/H frame and the RS frame exemplary when alternately transmitting the assemblage configuration information of the assemblage configuration information of current M/H frame and next M/H frame from (k+1) individual M/H frame obtain and process.
With reference to (k+1) individual M/H frame of Figure 23, the FIC block sending the assemblage configuration information of current M/H frame with signal is received early than the FIC block of the assemblage configuration information sending next M/H frame with signal, thus is resumed.
Now, as shown in figure 23, when carrying out tuning at the middle part of (k+1) individual M/H frame to the physical channel comprising required assemblage, the assemblage configuration information of (k+2) individual M/H frame can be obtained from (k+1) individual M/H frame.More particularly, when there is reconstruct, to the M/H frame before corresponding reconstruct be sent to change map information between assemblage in mobile broadcast and mobile service with the FIC block assemblage configuration information of M/H frame that reconstruct occurs being carried out to signal transmission in advance by performing, the present invention promptly can obtain the assemblage configuration information of the M/H frame (that is, there occurs the M/H frame of corresponding reconstruct) that wherein there occurs corresponding reconstruct.And, by utilizing the assemblage configuration information of (k+2) the individual M/H frame obtained from (k+1) individual M/H frame, the present invention can obtain the RS frame being sent to (k+2) individual M/H frame, thus can recover obtained RS frame completely.
With reference to Figure 24, except except the end part of a kth M/H frame is tuning to the physical channel execution comprising required assemblage, remaining tuning process is identical with the treatment step shown in Figure 23.Now, when receiving system cannot receive the part of the RS frame corresponding with 20% of about M/H frame, whole RS frame can be recovered by using RS-CRC decoding and SCCC decoding process.Such as, suppose to perform tuning in the end part of a kth M/H frame to the physical channel comprising required assemblage, and from first FIC block 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 first FIC block of the individual M/H frame of reception (k+1), not yet the RS frame being sent to (k+1) individual M/H frame can be received.But, when the part do not received is equivalent to about 20% of (k+1) individual M/H frame, recover by using RS-CRC decoding and SCCC decoding process the whole RS frame being sent to (k+1) individual M/H frame.In addition, even if reconstruct in (k+1) individual M/H frame, the present invention can use the signaling information of (k+2) the individual M/H frame obtained from (k+1) individual M/H frame, intactly to recover the RS frame being sent to (k+2) individual M/H frame.
As mentioned above, the FIC block data structure in the tuning point of physically based deformation channel and the M/H frame before reconstructing, the present invention promptly can obtain and recover RS frame, thus can provide required RS frame to user.
But, as mentioned above, when there is the FIC block transmitting the FIC block of map information between assemblage in current M/H frame and mobile service and the map information between the assemblage transmitted with signal in next M/H frame and mobile service with signal in single M/H frame simultaneously, also there will be the identical problem occurred when receiving and there is the FIC block of different protocol versions in single M/H frame in this case.More particularly, transmit the FIC section of the FIC block of the map information between assemblage in current M/H frame and mobile service with signal from transmitting and transmit the FIC section transmitting the FIC block of the map information between assemblage in next M/H frame and mobile service with signal and recover a FIC block, this wherein there will be mistake.As mentioned above, when going wrong in the recovery process at FIC block, the assemblage configuration information of next M/H frame cannot be obtained suitably from recovered FIC block.Therefore, also cannot obtain suitably and recover to be sent to the RS frame of next M/H frame.
Such as, when with mixing be received sequentially the FIC section transmitting the FIC section of FIC block of map information between assemblage in current M/H frame and mobile service and the FIC block of the map information between the assemblage transmitted with signal in next M/H frame and mobile service with signal time, receiving system cannot be determined the FIC section of received correspondence and belong to that to transmit the FIC section of the FIC block of the map information between assemblage in current M/H frame and mobile service with signal corresponding, or to transmit the FIC section of the FIC block of the map information between assemblage in next M/H frame and mobile service with signal corresponding with belonging to.Therefore, there will be above-mentioned problem.
In addition, when the mistake caused due to burst noise makes FIC section lose, receiving system also can be determined the FIC section of received correspondence and belong to that to transmit the FIC section of the FIC block of the map information between assemblage in current M/H frame and mobile service with signal corresponding, or with belong to that to transmit the FIC section of the FIC block of the map information between assemblage in next M/H frame and mobile service with signal corresponding.Therefore, in this case, also above-mentioned problem can be there is.
Similarly, when receiving TPC data and FIC section as shown in figure 23, the problems referred to above also can occur.More particularly, as Figure 25 1. shown in, in first FIC section of the FIC block of the map information between the assemblage transmitted with signal in next M/H frame and mobile service, the FIC_version field value in TPC data adds " 1 ".Correspondingly, as Figure 25 2. shown in, receiving system can exit from time slicing pattern, thus collects (or, gather) FIC section.
In addition, as Figure 25 3. shown in, FIC_segment_num field in each FIC section header of FIC section collected by receiving system utilizes and FIC_last_segment_num field, only to collect the FIC section being formed single FIC block, thus adjust each FIC section with the order of each FIC segment number.Thereafter, the FIC section that receiving system adjusts from each removes header.Correspondingly, as Figure 25 4. shown in, constitute single FIC block.Then, receiving system obtains the assemblage configuration information of M/H frame from the FIC block formed.Subsequently, as Figure 25 5. shown in, according to obtained assemblage configuration information, receiving system entry time fragmentation schema.
But, with reference to the FIC section of the 3. shown collection as Figure 25, obviously, the FIC section transmitting the FIC block of the map information between assemblage in current M/H frame and mobile service with signal is (simultaneous) that mix with the FIC section of the FIC block of the map information between the assemblage transmitted with signal in next M/H frame and mobile service.More particularly, the example that 3. collection FIC section is improperly shown of Figure 25.This is because receiving system cannot determine that corresponding FIC section is the FIC section belonging to the FIC block transmitting the assemblage configuration information in current M/H frame with signal, still belong to the FIC section of the FIC block transmitting the assemblage configuration information in next M/H frame with signal.
In addition, when such as Figure 25 4. shown in form FIC block time, receiving system determines that corresponding FIC block is transmitting the assemblage configuration information of next M/H frame with signal.But FIC block comprises the partial data being included in and transmitting with signal in the FIC block of the assemblage configuration information in current M/H frame.More particularly, Figure 25 4. the example be resumed when FIC block comprises (incorrect) information of mistake is shown.Correspondingly, the assemblage configuration information owing to obtaining from the FIC block of incorrect recovery corresponds to incorrect information, so the RS frame being sent to next M/H frame correctly can not be obtained and recover.
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 the FIC section of the FIC block transmitting the assemblage configuration information in current M/H frame with signal, or transmits the FIC section of FIC block 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 transmitted by FIC section header is corresponding with current_next_indicator field.
Figure 26 is exemplified with the syntactic structure of the FIC section header according to another embodiment of the present invention.More particularly, current_next_indicator field is also included in the syntactic structure of the FIC section header shown in Figure 20.According to the present invention, 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 the description for FIC_type field, error_indicator field, FIC_segment_num field and FIC_last_segment_num field can with reference to Figure 16, so will the specific descriptions of identical content be omitted for the sake of simplicity.
FIC_Chunk_major_protocol_version field corresponds to 2 bit fields, the master agreement version of the FIC block that its instruction is corresponding.Now, FIC_Chunk_major_protocol_version field should be identical with the value of the FIC_major_protocol_version field in corresponding FIC block header.Due to reference to the description of the FIC block header shown in Fig. 9, for the sake of simplicity, the specific descriptions of the master agreement version of FIC block grammer can will be omitted.
Current_next_indicator field corresponds to 1 bit indicator, wherein, when being set to " 1 ", the FIC section that instruction is corresponding is carried a part for the FIC block being applicable to current M/H frame.Alternatively, when current_next_indicator field is set to " 0 ", instruction FIC section is carried a part for the FIC block of the correspondence being applicable to next M/H frame by current_next_indicator field.In the previous case, the nearest version of the FIC block transmitted with the current_next_indicator field value being set to " 1 " by current be available.
In addition, in the signaling information region in data group, together distribute with FIC data and then comprised by the TPC data transmitted the parameter mainly used in physical layer block.Further, transmit due to TPC data non-interleaved, receiving system can visit TPC data in units of time slot.According to the embodiment of the present invention, by the characteristic enabling the TPC data comprising FIC_version field receive in units of time slot, when upgrading FIC block, receiving system can use the FIC_version field of TPC data to determine the more new state of corresponding FIC block.And when the more new state of corresponding FIC block being detected, receiving system exits from time slicing pattern, to enable FIC section by integrated (or combination).
Figure 27 is exemplified with an example of the syntactic structure of TPC data.TPC data can comprise sub_frame_number field, slot_number field, parade_id field, starting_group_number (SGN) field, number_of_groups (NoG) field, parade_repetition_cycle (PRC) field, RS_frame_mode field, RS_code_mode_primary field, RS_code_mode_secondary field, SCCC_block_mode field, SCCC_outer_code_mode_A field, SCCC_outer_code_mode_B field, SCCC_outer_code_mode_C field, SCCC_outer_code_mode_D field, FIC_version field, parade_continuity_counter field, TNoG field and TPC_protocol_version field.
The numbering of the present sub-frame in the M/H frame that the instruction of sub_frame_number field is corresponding, being transmitted is to carry out M/H frame synchronization.The value of sub_frame_number field is by from the scope of 0 to 4.
Slot_number field is the current time slots numbering in subframe, and being transmitted is to carry out M/H frame synchronization.Its value is by from the scope of 0 to 15.
Queue belonging to this group of parade_id field identification.The value of this field can be the value of any 7 bits.Each queue in M/H transmits will have unique parade_id.In this case, will ensemble_id being utilized to perform the communication of parade_id between physical layer and management level, wherein, forming ensemble_id by increasing by a bit to the left side of parade_id.If ensemble_id is combined for the principal series transmitted by this queue, then the highest significant position (MSB) increased will be " 0 ".Otherwise if ensemble_id is the auxiliary assemblage for being transmitted by this queue, then the highest significant position increased (MSB) will be " 1 ".
Starting_group_number (SGN) field is first slot_number of the queue (after the time-gap number in order to all preceding queue as calculated) belonging to this group (group).
Number_of_groups (NoG) field subtracts 1 to the quantity of the group of the queue assignment belonging to this group in subframe, and such as, NoG=0 represents that a group is assigned to this queue in subframe.The scope of the value of NoG will be from 0 to 7.The timeslot number of dispensed to corresponding queue can be carried out according to SGN and NoG.
The circulation timei of the transmission queue specified in units of M/H frame is parade_repetition_cycle (PRC) field subtract 1.
RS_frame_mode field instruction 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 auxiliary RS frame.
How M/H block in data group is dispensed to SCCC block by the instruction of SCCC_block_mode field.
SCCC_outer_code_mode_A field indicates in data group for the SCCC external schema code of region A.
SCCC_outer_code_mode_B field indicates in data group for the SCCC external schema code of region B.
SCCC_outer_code_mode_C field indicates in data group for the SCCC external schema code of region C.
SCCC_outer_code_mode_D field indicates in data group for the SCCC external schema code of region D.
The version of FIC_version field instruction FIC data.More particularly, FIC_version field represents the version of FIC block data structure.The value of this field is by identical for all TPC data structures be set to being transmitted by a M/H frame, and whenever exist in the subframe transmitting TPC data structure current_next_indicator field be set to the FIC section of " 0 " time, the value of this field will increase progressively 1.Such as, when the numbering being included in the mobile service in assemblage 0 changes into 3 from 2, the value of FIC_version field is constant.
Parade_continuity_counter field is incremented to 0 to 15, and increases progressively 1 for every (PRC+1) individual M/H frame.Such as, if PRC=011, then parade_continuity_counter field increases progressively for every four M/H frames.
TNoG field indicates the sum of the data group transmitted in subframe.In other words, it be the NoG's of all queues in subframe and.Its value (comprises 1 and 16) by the scope of 0 to 16.The use of TNoG field both for current M/H frame information also for the signaling shifted to an earlier date.
TPC_protocol_version field corresponds to 5 bit unsigned integer, and represents the version of corresponding TPC syntactic structure.2 highest significant positions are main release levels; Three least significant bits are subedition ranks, are read as: at the corresponding levels other of key plate changes the change of the non-back compatible rank of instruction.Suppose that main release level remains unchanged, then the change of subedition rank is by the change of instruction back compatible rank.The initial value of this field will be " 11111 ".When the version in the future of this standard changes TPC structure each time, at least one bit will be changed the former original value forming this field.Other version value can use being used in the future reserved bit or the change of grammer for defining.First this change will be change into " 00 " or " 000 ", so this field increases progressively for later change in the mode identical with other field.
But, be only exemplary in this information be included in TPC data presented.Further, because those of ordinary skill in the art can easily adjust the increase of the information be included in TPC and deletion and revise, the example illustrated by therefore not limiting the invention to herein.
Because the value of the TPC data (except Sub_Frame_number field and Slot_number field) for each queue does not change at M/H image duration, therefore repeatedly transmit identical information by all M/H groups of the queue belonging to correspondence in M/H frame.This allows very healthy and strong and reliably receives TPC data.Because Sub_Frame_number and Slot_number is the Counter Value increased progressively, owing to transferring the desired value of rule, therefore this Sub_Frame_number and Slot_number is also healthy and strong.
Figure 28 is exemplified with receiving the FIC section of the FIC section header had separately as shown in figure 26 and having the TPC data of structure as shown in figure 27 thus an example of recovery FIC block.More particularly, as Figure 28 1. shown in, when the FIC_version field value of TPC data structure increases " 1 ", receiving system determines that the data structure of corresponding FIC block is updated.Then, as Figure 28 2. shown in, receiving system exits from time slicing pattern, (or collection) FIC section collecting.
Thereafter, as Figure 28 3. shown in, FIC_segment_num field, FIC_last_segment_num field and current_next_indicator field in each FIC section header of FIC section collected by receiving system utilizes, only to collect the FIC section of a formation FIC block.Subsequently, receiving system adjusts each FIC section of collecting with the order of each FIC segment number.Then, as Figure 28 4. shown in, receiving system removes the header of each FIC section, thus forms FIC block.Then, as Figure 28 5. shown in, receiving system obtains the assemblage configuration information of M/H frame from the FIC block formed, with according to obtained assemblage configuration information entry time fragmentation schema.
When Figure 28 3., when only collecting the FIC section of a formation FIC block, the FIC_Chunk_major_protocol_version field in FIC section header can be used in addition.More particularly, receiving system can use segment_num field, FIC_last_segment_num field, current_next_indicator field and FIC_Chunk_major_protocol_version field, to transmit with signal and the FIC section of FIC block of assemblage configuration information of corresponding next of identical protocol version (or, current) M/H frame only to collect.Subsequently, receiving system adjusts each FIC section of collecting with the order of each FIC segment number.Then, receiving system removes the header of each FIC section, thus forms FIC block.As Figure 28 4. shown in, when forming as mentioned above FIC block, can only by the FIC section corresponding with the FIC block of the assemblage configuration information transmitting next M/H frame with signal to form FIC block.
Therefore, receiving system can prevent from transmitting the FIC section of the FIC block of the assemblage configuration information in current M/H frame with signal by collecting to belong to and belonging to the problem that the FIC section transmitting the FIC block of the assemblage configuration information in next M/H frame with signal constructs single FIC block.More particularly, M/H frame identifying information is dispensed to each FIC section header by the present invention.Herein, M/H frame identifying information can identify that the signaling information of the payload being transferred into each FIC section is corresponding with the signaling information of current M/H frame, or corresponding with the signaling information of next M/H frame.Thus, receiving system can obtain the assemblage configuration information of next M/H frame without any mistake from FIC block.Correspondingly, receiving system correctly can obtain and recover to be sent to the RS frame of next M/H frame.
Figure 29 and Figure 30 is exemplified with the flow chart that the step for the treatment of FIC block is shown according to an embodiment of the invention.
Suppose that the receiving system (or receiver) applied in Figure 29 and Figure 30 corresponds respectively to the receiving system that cannot process FIC block when the master agreement version of corresponding FIC block is updated.Also hypothesis receiving system when the secondary protocol version of corresponding FIC block is updated only can process a part of FIC block.In addition, suppose can to carry out the master agreement version of the FIC block processed by receiving system and secondary protocol version is stored in corresponding receiving system.
More particularly, in step 501, any one using the above-mentioned method for recovering FIC block recovers FIC block from multiple FIC section payload.In this article, FIC block is made up of FIC block header and FIC block payload.Further, suppose that the syntactic structure of FIC block header is identical with the syntactic structure shown in Fig. 9, and the syntactic structure of FIC block payload is identical with the syntactic structure shown in Figure 12.
When having recovered FIC block in step 501, resolve to obtain the field information (S502) be included in FIC block header to a part for FIC block header.This field information can comprise the information extracted from least one 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 block of receiving system inspection recovery is updated (S503).Can be compared by the master agreement version of the master agreement version that obtains the FIC_major_protocol_version field in the block header from recovered FIC block and the FIC block be stored in receiving system and determine to upgrade.According to an embodiment of the invention, if the value of the master agreement version corresponding with FIC block obtained in step 502 is greater than the value of the master agreement version corresponding with the FIC block be stored in receiving system, then receiving system determines that the master agreement version of recovered FIC block is updated.
Then, when receiving system determines that the master agreement version of recovered FIC block is updated in step 503, receiving system can not complete the process (S504) to FIC block recovered in step 501.In other words, the payload of FIC block recovered in step 501 is not processed.
Meanwhile, if receiving system determines that the master agreement version of recovered FIC block is not updated in step 503, then whether the secondary protocol version of the FIC block of receiving system inspection institute recovery is updated (S505).Can to be compared with the secondary protocol version of the FIC block be stored in receiving system by the secondary protocol version that obtains the FIC_minor_protocol_version field in the block header from recovered FIC block and determine to upgrade.
According to one embodiment of the present invention, if the value of the secondary protocol version corresponding with FIC block obtained in step 502 is greater than the value of the secondary protocol version corresponding with the FIC block be stored in receiving system, then receiving system determines that the secondary protocol version of recovered FIC block is updated.
If receiving system determines that the secondary protocol version of FIC block is not updated in step 505, then receiving system processes (S506) the assemblage circulation header in the payload of FIC block recovered in step 501, thus obtains the information (S507) of the quantity about the mobile service be included in corresponding assemblage.The quantity of mobile service can be known by reference to num_MH_services field.
After execution step 507, whether the receiving system secondary protocol version of FIC block that inspection institute recovers again is updated.Because verification method is identical with method described in step 505, for the sake of simplicity, the specific descriptions of identical content will be omitted.
If receiving system determines that the secondary protocol version of corresponding FIC block is not updated in step 508, then receiving system processes mobile service circulation (that is, M/H cycle of business operations) be contained in assemblage handled in step 505.The step of process M/H cycle of business operations repeats the number of times identical with the quantity of the mobile service be included in assemblage.
More particularly, after processing M/H cycle of business operations in step 509, the handled in step 509 mobile service of receiving system inspection whether with last the M/H business corresponding (S510) be contained in assemblage circulation header handled in step 505.Num_MH_services field by reference to assemblage circulation header can verify this information.
If the mobile service of checking corresponds to last M/H business, then receiving system advances to according to the step 511 of data processing method of the present invention to process next assemblage circulation header.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 to process next the M/H cycle of business operations be included in current assemblage circulation header.
If determine that the mobile service checked is corresponding with last M/H business in step 510, then whether receiving system is checked comprising there being the assemblage of last M/H business corresponding with passing through the last assemblage that recovered FIC block transmits with signal in step 511.This information can be verified by reference to the num_ensembles field of FIC block.
If determine that current assemblage corresponds to last assemblage, then complete the process (S512) to FIC block.But if determine that current assemblage does not correspond to last assemblage, then receiving system steps back (or returning) to the step 505 according to data processing method of the present invention, to process next assemblage be included in recovered FIC block.
Meanwhile, if determine that the secondary protocol version of corresponding FIC block is updated in step 505, then receiving system processes all the other fields except the extended field of correspondence based on the length information of the extended field being sent to FIC block with signal.In this article, corresponding extended field is skipped.
More particularly, if the secondary protocol version of FIC block is changed, then based on n1 the byte obtained from FIC_chunk_header_extension_length field length information (wherein, n1 >=0), skip the FIC block header extension field of n1 the byte at the end being added into corresponding FIC block header and it does not processed (S513).
In addition, when the secondary protocol version of FIC block is changed, the assemblage circulation header portion can decoded by receiving system is processed (S514).Now, based on n2 the byte length obtained from ensemble_loop_header_extension_length field information (wherein, n2 >=0), skip the assemblage circulation header extension field of n2 the byte at the end being added into corresponding assemblage circulation header and it does not processed (S515).
In addition, when the secondary protocol version of FIC block is changed, the M/H cycle of business operations part can decoded by receiving system is processed (S516).Now, based on n3 the byte length obtained from M/H_service_loop_extension_length field information (wherein, n3 >=0), skip the M/H cycle of business operations extended field of n3 the byte at the end being added into corresponding M/H cycle of business operations and it does not processed (S517).
After having carried out processing to M/H cycle of business operations in step 516 and step 517, the mobile service of receiving system inspection process in step 516 with step 517 whether with last M/H business corresponding (S510) be included in assemblage circulation header of processing in step 514 and step 515.The num_MH_services field of header can be circulated to know this information by reference to assemblage.
If mobile service corresponds to last M/H business, then receiving system advances to step 511 to process next assemblage circulation header.On the contrary, if mobile service does not correspond to last M/H business, then receiving system returns step 508 and processes with next M/H cycle of business operations of the assemblage circulation header to correspondence.
In step 511, once receiving system determines that mobile service corresponds to last M/H business in step 510, then whether receiving system then checks the assemblage of last M/H business of carrying corresponding with last assemblage transmitted by signal from the FIC block recovered.This information can be checked by reference to the num_ensembles field of FIC block.
Thereafter, when receiving system determination assemblage corresponds to last assemblage transmitted by signal from recovered block, the process (S512) to FIC block is completed.But if receiving system determines that this assemblage does not correspond to last assemblage transmitted by signal from recovered block, then receiving system returns step 505 to process next assemblage be included in the FIC block of recovery.
Meanwhile, if correspond to the receiving system of the change that can be received in FIC master agreement version according to receiving system of the present invention, then normal process is carried out to the FIC block recovered from multiple FIC section.
In addition, if correspond to the receiving system of the change that can be received in the secondary protocol version of FIC according to receiving system of the present invention, and when confirming that the secondary protocol version of FIC block is updated, based on the length information of extended field being sent to FIC block by signal, FIC block is processed until complete the process of corresponding extended field.
More particularly, based on n1 the byte obtained from FIC_chunk_header_extension_length field length information (wherein, n1 >=0), FIC block is processed until complete the process of the FIC block header extension field of n1 the byte to the end being added into corresponding FIC block header.And, based on n2 the byte obtained from ensemble_loop_header_extension_length field length information (wherein, n2 >=0), FIC block is processed until complete the process of the assemblage circulation header extension field of n2 the byte to the end being added into corresponding assemblage circulation header.In addition, based on n3 the byte obtained from M/H_service_loop_extension_length field length information (wherein, n3 >=0), FIC block is processed until complete the process of the M/H cycle of business operations extended field of n3 the byte to the end being added into corresponding M/H cycle of business operations.Such as, if correspond to the receiving system of the change that can accept corresponding secondary protocol version according to digital broadcast receiving system of the present invention, then can know from specified by the extended field of correspondence and the details (or content) of instruction, and can correspondingly perform for details corresponding operating specified in the extended field of correspondence.
It is apparent to one skilled in the art that, under the condition not departing from the spirit or scope of the present invention, various modifications and variations can be made to the present invention.Therefore, the present invention is intended to contain and falls into these modifications of the present invention in claims and equivalency range thereof and modified example.
Industrial usability
Broadcast and the communications field is may be used for the method for Received signal strength with for sending with the execution mode of the device of Received signal strength for sending according to of the present invention.

Claims (8)

1. the method for deal with data in broadcsting transmitter, said method comprising the steps of:
Forward error correction FEC coding is carried out to the broadcast service data for broadcasting service;
FEC coding is carried out to the signaling data sending described broadcast service data for signaling; And
Send the frame comprised through the broadcast service data of FEC coding and the signaling data through FEC coding;
Wherein, described signaling data comprises the version information for identifying the change in described signaling data and is used for identifying the identifying information of described broadcasting service.
2. method according to claim 1, wherein, described version information comprises main version information and subedition information, the change in wherein said main version information indicate the change of non-back compatible and in described subedition information change instruction back compatible change.
3. method according to claim 1, wherein, described signaling data comprises the information whether be sent out in the current frame at least partially for identifying for the signaling data of next frame further.
4. method according to claim 1, wherein, described signaling data comprises the information of the size for identifying described signaling data further.
5., for the treatment of a broadcsting transmitter for data, described broadcsting transmitter comprises:
Encoder, it is for carrying out forward error correction FEC coding to the broadcast service data for broadcasting service and carrying out FEC coding to the signaling data sending described broadcast service data for signaling; And
Transmitting element, it is for sending the frame comprised through the broadcast service data of FEC coding and the signaling data through FEC coding;
Wherein, described signaling data comprises the version information for identifying the change in described signaling data and is used for identifying the identifying information of described broadcasting service.
6. broadcsting transmitter according to claim 5, wherein, described version information comprises main version information and subedition information, the change in wherein said main version information indicate the change of non-back compatible and in described subedition information change instruction back compatible change.
7. broadcsting transmitter according to claim 5, wherein, described signaling data comprises the information whether be sent out in the current frame at least partially for identifying for the signaling data of next frame further.
8. broadcsting transmitter according to claim 5, wherein, described signaling data comprises the information of the size for identifying described signaling data further.
CN201410557708.7A 2009-02-02 2009-07-21 Transmitting/receiving system and in transmitting/receiving system processing data method Expired - Fee Related CN104270215B (en)

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