Source: https://patents.google.com/patent/US20090059086A1/en
Timestamp: 2019-03-20 05:44:54
Document Index: 498582165

Matched Legal Cases: ['Application No. 10', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 61', 'Application No. 61']

US20090059086A1 - Digital broadcasting system and method of processing data in digital broadcasting system - Google Patents
US20090059086A1
US20090059086A1 US12/198,071 US19807108A US2009059086A1 US 20090059086 A1 US20090059086 A1 US 20090059086A1 US 19807108 A US19807108 A US 19807108A US 2009059086 A1 US2009059086 A1 US 2009059086A1
US12/198,071
US7705920B2 (en
2008-08-25 Priority to KR1020080083037A priority patent/KR101573727B1/en
2008-08-25 Priority to KR10-2008-0083037 priority
2008-08-25 Priority to US12/198,071 priority patent/US7705920B2/en
2008-11-17 Assigned to LG ELECTRONICS INC. reassignment LG ELECTRONICS INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SONG, JAE HYUNG, CHOI, IN HWAN, HONG, SUNG RYONG, LEE, CHUL SOO
2009-03-05 Publication of US20090059086A1 publication Critical patent/US20090059086A1/en
2010-04-27 Publication of US7705920B2 publication Critical patent/US7705920B2/en
This application also claims the priority benefit of Korean Application No. 10-2008-0083037, filed on Aug. 25, 2008, which is hereby incorporated by reference. Also, this application claims the benefit of U.S. Provisional Application No. 60/957,714, filed on Aug. 24, 2007, which is hereby incorporated by reference. This application also claims the benefit of U.S. Provisional Application No. 60/974,084, filed on Sep. 21, 2007, which is hereby incorporated by reference. This application also claims the benefit of U.S. Provisional Application No. 60/977,379, filed on Oct. 4, 2007, which is hereby incorporated by reference. This application also claims the benefit of U.S. Provisional Application No. 61/044,504, filed on Apr. 13, 2007, which is hereby incorporated by reference. This application also claims the benefit of U.S. Provisional Application No. 61/076,686, filed on Jun. 29, 2007, which is hereby incorporated by reference.
However, the Vestigial Sideband (VSB) transmission mode, which is adopted as the standard for digital broadcasting in North America and the Republic of Korea, is a system using a single carrier method. Therefore, the receiving performance of the digital broadcast receiving system may be deteriorated in a poor channel environment. Particularly, since resistance to changes in channels and noise is more highly required when using portable and/or mobile broadcast receivers, the receiving performance may be even more deteriorated when transmitting mobile service data by the VSB transmission mode. Furthermore, limitations have been found in the related art digital broadcasting systems, such as decrease in channel switching speed in a mobile digital broadcasting environment.
Another object of the present invention is to provide a digital broadcast receiving system and a method for controlling the same that can increase channel switching speed in a mobile digital broadcasting environment.
A further object of the present invention is to provide a digital broadcast receiving system that can easily verify whether or not an error has occurred in data transmitted through a newly defined fast information channel (FIC).
To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, a method for controlling a digital broadcast receiving system includes the steps of receiving a broadcast signal having mobile service data and main service data multiplexed therein, extracting transmission parameter channel (TPC) signaling information and fast information channel (FIC) signaling information from a data group within the received mobile service data, wherein the FIC signaling information includes a current/next (C/N) indicator, and wherein the TPC signaling information includes FIC version information, and detecting ensemble configuration information of a current MH frame by using the extracted TPC signaling information and FIC signaling information.
In another aspect of the present invention, a digital broadcast receiving system comprises a receiver, an extractor, a first determiner, a second determiner, and a decider. The receiver receives a broadcast signal having mobile service data and main service data multiplexed therein. The extractor extracts transmission parameter channel (TPC) signaling information and fast information channel (FIC) signaling information from a data group within the received mobile service data. Herein, the FIC signaling information may include a current/next (C/N) indicator, and wherein the TPC signaling information includes FIC version information. The first determiner determines whether or not the FIC signaling information has been modified, by using FIC version information included in TPC signaling information of a first MH frame. When the FIC signaling information is modified, the second determiner determines whether an FIC content of a second MH frame corresponds to a current MH frame or to a next MH frame, by using the C/N indicator included in the FIC signaling information of the second MH frame. And, when the FIC content corresponds to the next MH frame, the decider decides the FIC content of the second MH frame as ensemble configuration information for a next frame of the second MH frame.
FIG. 25 illustrates process steps for performing signal processing in the digital broadcast receiving system according to the embodiment of the present invention, when the configuration information of an ensemble is changed;
FIG. 26 illustrates a flow chart showing a method of controlling the digital broadcast receiving system according to the embodiment of the present invention; and
FIG. 27 illustrates a detailed view of step 2730 shown in FIG. 26.
Referring to FIG. 2, MH block 4 (B4) to MH block 7 (B7) correspond to regions without interference of the main service data. MH block 4 (B4) to MH block 7 (B7) within the data group shown in FIG. 2 correspond to a region where no interference from the main service data occurs. In this example, a long known data sequence is inserted at both the beginning and end of each MH block. In the description of the present invention, the region including MH block 4 (B4) to MH block 7 (B7) will be referred to as “region A (=B4+B5+B6+B7)”. As described above, when the data group includes region A having a long known data sequence inserted at both the beginning and end of each MH block, the receiving system is capable of performing equalization by using the channel information that can be obtained from the known data. Therefore, region A may have the strongest equalizing performance among region A, B, C and D.
The MH payload may include mobile service data as week as signaling data. More specifically, an MH payload may include only mobile service data, or may include only signaling data, or may include both mobile service data and signaling data. According to the embodiment of the present invention, the MH header may identify (or distinguish) the data types included in the MH payload. More specifically, when the MH TP includes a first MH header, this indicates that the MH payload includes only the signaling data. Also, when the MH TP includes a second MH header, this indicates that the MH payload includes both the signaling data and the mobile service data. Finally, when MH TP includes a third MH header, this indicates that the MH payload includes only the mobile service data. In the example shown in FIG. 3, the RS frame is assigned with IP datagrams (for example, IP datagram 1 and IP datagram 2) for two service types.
j=(4i+0)mod16 Equation 1
0=0 if i<4,
0=2 else if i<8,
0=1 else if i<12,
RS frame mode Description
For example, when it is assumed that one parade transmits one RS frame, and that a RS frame encoder (not shown) included in the transmitting system performs RS-encoding on the corresponding RS frame, thereby adding 24 bytes of parity data to the corresponding RS frame and transmitting the processed RS frame, the parity data occupy approximately 11.37% (=24/(187+24)×100) of the total RS code word length. Meanwhile, when one sub-frame includes 3 data groups, and when the data groups included in the parade are assigned, as shown in FIG. 9, 15 data groups form an RS frame. Accordingly, even when an error occurs in an entire data group due to a burst noise within a channel, the percentile is merely 6.67% (=1/15×100). Therefore, the receiving system may correct all errors by performing an erasure RS decoding process. More specifically, when the erasure RS decoding is performed, a number of channel errors corresponding to the number of RS parity bytes may be corrected and bytes error among one RS code word that is less than the number of RS parity bytes may be corrected. By doing so, the receiving system may correct the error of at least one data group within one parade. Thus, the minimum burst noise length correctable by a RS frame is over 1 VSB frame.
FIG. 13 illustrates a hierarchical signaling structure according to an embodiment of the present invention. As shown in FIG. 13, the mobile broadcasting technology according to the embodiment of the present invention adopts a signaling method using FIC and SMT. In the description of the present invention, the signaling structure will be referred to as a hierarchical signaling structure. Hereinafter, a detailed description on how the receiving system accesses a virtual channel via FIC and SMT will now be given with reference to FIG. 13. The FIC body defined in an MH transport (Ml) identifies the physical location of each the data stream for each virtual channel and provides very high level descriptions of each virtual channel. Being MH ensemble level signaling information, the service map table (SMT) provides MH ensemble level signaling information. The SMT provides the IP access information of each virtual channel belonging to the respective MH ensemble within which the SMT is carried. The SMT also provides all IP stream component level information required for the virtual channel service acquisition.
The application of the signaling structure in the receiving system will now be described in detail. When a user selects a channel he or she wishes to view (hereinafter, the user-selected channel will be referred to as “channel 0” for simplicity), the receiving system first parses the received FIC. Then, the receiving system acquires information on an MH ensemble (i.e., ensemble location), which is associated with the virtual channel corresponding to channel 0 (hereinafter, the corresponding MH ensemble will be referred to as “MH ensemble 0” for simplicity). By acquiring slots only corresponding to the MH ensemble 0 using the time-slicing method, the receiving system configures ensemble 0. The ensemble 0 configured as described above, includes an SMT on the associated virtual channels (including channel 0) and IP streams on the corresponding virtual channels. Therefore, the receiving system uses the SMT included in the MH ensemble 0 in order to acquire various information on channel 0 (e.g., Virtual Channel 0 Table Entry) and stream access information on channel 0 (e.g., Virtual Channel 0 Access Info). The receiving system uses the stream access information on channel 0 to receive only the associated IP streams, thereby providing channel 0 services to the user.
FIG. 16 illustrates an exemplary bit stream syntax structure with respect to a payload of an FIC segment according to the present invention, when an FIC type field value is equal to ‘0’. According to the embodiment of the present invention, the payload of the FIC segment is divided into 3 different regions. A first region of the FIC segment payload exists only when the FIC_seg_number field value is equal to ‘0’. Herein, the first region may include a current_next_indicator field, an ESG_version field, and a transport_stream id field. However, depending upon the embodiment of the present invention, it may be assumed that each of the 3 fields exists regardless of the FIC_seg_number field.
A second region of the FIC segment payload corresponds to an ensemble loop region, which includes an ensemble_id field, an SI_version field, and a num_channel field. More specifically, the ensemble_id field is an 8-bit field indicating identifiers of an MH ensemble through which MH services are transmitted. Herein, the ensemble_id field binds the MH services and the MH ensemble. The SI version field is a 4-bit field indicating version information of SI data included in the corresponding ensemble, which is being transmitted within the RS frame. Finally, the num_channel field is an 8-bit field indicating the number of virtual channel being transmitted via the corresponding ensemble.
A third region of the FIC segment payload a channel loop region, which includes a channel_type field, a channel_activity field, a CA indicator field, a stand_alone service_indicator field, a major_channel_num field, and a minor_channel_num field. The channel_type field is a 5-bit field indicating a service type of the corresponding virtual channel. For example, the channel_type field may indicates an audio/video channel, an audio/video and data channel, an audio-only channel, a data-only channel, a file download channel, an ESG delivery channel, a notification channel, and so on. The channel_activity field is a 2-bit field indicating activity information of the corresponding virtual channel. More specifically, the channel_activity field may indicate whether the current virtual channel is providing the current service.
The CA indicator field is a 1-bit field indicating whether or not a conditional access (CA) is applied to the current virtual channel. The stand_alone_service_indicator field is also a 1-bit field, which indicates whether the service of the corresponding virtual channel corresponds to a stand alone service. The major_channel_num field is an 8-bit field indicating a major channel number of the corresponding virtual channel. Finally, the minor_channel_num field is also an 8-bit field indicating a minor channel number of the corresponding virtual channel.
0x01 MH_digital_television field: the virtual channel
0x02 MH_audio field: the virtual channel carries
0x03 MH_data_only_service field: the virtual channel
The source_IP_address_flag field is a 1-bit Boolean flag, which indicates, when set, that a source IP address of the corresponding virtual channel exist for a specific multicast source. The virtual_channel_target_IP_address_flag field is a 1-bit Boolean flag, which indicates, when set, that the corresponding IP stream component is delivered through IP datagrams with target IP addresses different from the virtual_channel_target_IP_address. Therefore, when the flag is set, the receiving system (or receiver) uses the component_target_IP_address as the target_IP_address in order to access the corresponding IP stream component. Accordingly, the receiving system (or receiver) may ignore the virtual_channel target_IP address field included in the num_channels loop.
Hereinafter, a digital broadcast receiving system according to an embodiment of the present invention will be described in detail, based upon the description of the present invention with reference to FIG. 1 to FIG. 24. Therefore, the description of FIG. 1 to FIG. 24 may be partially or entirely applied to the digital broadcast receiving system according to the embodiment of the present invention. Evidently, the scope of the appended claims and their equivalents will not depart from the description of the present invention. Furthermore, as described in FIG. 12 to 16, a digital broadcasting receiver according to the embodiment of the present invention can have function of fast channel change by defining FIC data structure newly.
FIG. 25 illustrates process steps for performing signal processing in the digital broadcast receiving system according to the embodiment of the present invention, when the configuration information of an ensemble is changed. Hereinafter, the process steps of the digital broadcast receiving system according to the embodiment of the present invention swiftly detecting changed (or modified) configuration information, even when the ensemble configuration information has been changed, with reference to FIG. 1, FIG. 14, FIG. 15, FIG. 16, and FIG. 25 and so on.
The tuner 120 of the digital broadcast receiving system according to the embodiment of the present invention receives a broadcast signal having mobile service data and main service data multiplexed therein. Evidently, a module performing this function may be referred to as a receiver (or receiving unit). Also, the FIC handler 215 and TPC handler 214 of the digital broadcast receiving system respectively extract transmission parameter channel (TPC) signaling information and fast information channel (FIC) signaling information from a data group within the received mobile service data. Herein, however, as shown in FIG. 16, the FIC signaling information may include a current/next (C/N) indicator. And, as described above, the TPC signaling information may include FIC version information. Evidently, a module performing this function may be referred to as an extractor (or extracting unit).
Meanwhile, as described above, the C/N indicator may correspond to information identifying whether the corresponding FIC signaling information includes MH ensemble configuration information of a current MH frame, or whether the corresponding FIC signaling information includes MH ensemble configuration information of a next MH frame. Herein, for example, the FIC version information may correspond to a version number of an FIC body, which corresponds to an FIC transmission structure transmitted through a respective physical channel. Additionally, the physical adaptation control signal handler 216 of the digital broadcast receiving system uses the extracted transmission parameter channel (TPC) signaling information and fast information channel (FIC) signaling information, thereby extracting configuration information on an ensemble of the current MH frame. Therefore, according to the embodiment of the present invention, when the ensemble configuration information is modified, an MH digital broadcasting system may be able to swiftly verify the modified content of the ensemble configuration information.
More specifically, the TPC handler 214 of the digital broadcast receiving system uses FIC version information included in the TPC signaling information of the first MH frame, so as to determine whether or not the FIC signaling information has been modified. Evidently, a module performing this function may be referred to as a first determiner (or first determining unit). If the first determiner determines that the configuration information has been modified, the FIC handler 215 of the digital broadcast receiving system uses the C/N indicator included in the FIC signaling information of the second MH frame, so as to determine whether the FIC content of the second MH frame corresponds to the current MH frame or to the next MH frame. Evidently, a module performing this function may be referred to as a second determiner (or second determining unit).
If the second determiner determines that the FIC content of the second MH frame corresponds to the next MH frame, the physical adaptation control signal handler 216 of the digital broadcast receiving system decides the FIC content of the second MH frame as the ensemble configuration information for a next MH frame of the second MH frame. Evidently, a module performing this function may be referred to as a decider (or deciding unit). Herein, the second MH frame may correspond to the next MH frame of the first MH frame. And, the FIC content may correspond to information required in a process of decoding a data structure included in the MH frame. Therefore, a received MH frame may be decoded by using the FIC content. Furthermore, when configuration information associated with a channel, an ensemble, and so on, in an MH digital broadcasting environment is modified, the process of swiftly processing the modified content of the corresponding configuration information will now be described in detail with reference to FIG. 25.
Referring to FIG. 25, K−3, K−2, . . . , K+1 indicate the respective MH frame. Also, in the example shown in FIG. 25, it is assumed that the configuration information has been modified in the Kth MH frame. More specifically, as shown in FIG. 25, prior to the change in configuration information, 2 ensembles having TNoG of ‘4’ are transmitted through a single physical frequency. Then, after the change in configuration information, 3 ensembles having TNoG of ‘7’ are transmitted through the physical frequency. Herein, the FIC segment may transmit data amount equivalent to the TNoG value during one sub-frame. In order to enable the Kth MH frame to receive normal data, the receiving system should be informed of the structure of the data (e.g., service) being transmitted through the Kth MH frame. For this, according to the embodiment of the present invention, the data structure being transmitted through the Kth MH frame is recognized by the FIC through which the (K−1)th MH frame is transmitted. Hereinafter, the content being transmitted (or delivered) through the FIC and corresponding to the information required in the process of decoding the data structure included in the MH frame will be referred to as the FIC content, for simplicity. However, the term “FIC content” is merely exemplary and, therefore, will not limit the scope of the present invention.
Meanwhile, a method for notifying (or indicating) whether the FIC content being transmitted through the (K−1)th MH frame corresponds to the information on a service being transmitted through the current MH frame or to the information on a service being transmitted through the next MH frame (i.e., (K−1+1)th=Kth), corresponds to a method of using the above-described C/N indicator. For example, when the value of the C/N indicator field is equal to ‘1’, this indicates that the information corresponding to the next MH frame is transmitted through the FIC. Herein, the data being transmitted through the FIC cannot be processed in a time-slicing mode. Therefore, in order to collect the data being transmitted through the FIC, the digital broadcast receiving system that is currently being operated in the time-slicing mode should disengage (or depart) from the time-slicing mode. In order to do so, the digital broadcast receiving system according to the embodiment of the present invention uses FIC version information (e.g., FIC version field) being delivered through the TPC.
As shown in FIG. 25, the FIC version information is delivered through the TPC of a (K−2)th MH frame. Therefore, the digital broadcast receiving system checks the FIC version information being delivered through the MH frame. And, when the FIC version information is modified (e.g., the (K−2)th MH frame of FIG. 25), the FIC content transmitted through the next MH frame (e.g., the (K−1)th MH frame of FIG. 25) is acquired. Thereafter, when the acquired FIC content is decoded, the information on the ensemble and service being delivered through a next frame of the next MH frame (e.g., the Kth MH frame of FIG. 25) may be detected.
Meanwhile, as shown in FIG. 14, the FIC signaling information may include at least one FIC segment header and FIC segment payload configuring a single FIC body. More specifically, as shown in FIG. 15, the FIC segment header may include information identifying a number of an FIC segment configuring the FIC body (e.g., FIC_seg_number), information identifying a number of the last FIC segment configuring the FIC body (e.g., FIC_last_seg_number), and information identifying whether or not a non-recovered FIC segment exists (e.g., error_indicator). Accordingly, the digital broadcast receiving system according to the present invention is capable of deinterleaving a collection (or group) of more than one FIC segment to a single FIC body, by using the information identifying a number of an FIC segment configuring the FIC body and the information identifying a number of the last FIC segment configuring the FIC body.
Additionally, the digital broadcast receiving system may use the information identifying whether or not a non-recovered FIC segment exists, so as to determine whether an error has occurred in the FIC signaling information. Therefore, according to the embodiment of the present invention, the occurrence of an error in the data being transmitted through the FIC may be easily verified. Furthermore, the data group includes a plurality of known data sequences. And, the data group may be designed so that the transmission parameter channel (TPC) signaling information and the fast information channel (FIC) signaling information can be positioned between a first known data sequence and a second known data sequence.
Therefore, a known sequence detector included in the digital broadcast receiving system according to the embodiment of the present invention detects known data included in the received broadcast signal. Then, an equalizer included in the receiving system uses the detected known data, thereby channel-equalizing the mobile service data corresponding to the detected known data. Details on the functions of the known sequence detector and the equalizer have been sufficiently described in FIG. 1. Furthermore, according to the embodiment of the present invention, the equalizer uses a known data symbol sequence received from the known sequence detector, thereby enhancing the equalization performance.
FIG. 26 illustrates a flow chart showing a method of controlling the digital broadcast receiving system according to the embodiment of the present invention. Hereinafter, the method of controlling the digital broadcast receiving system according to the embodiment of the present invention will be described in detail with reference to FIG. 26. Also, the description of the method shown in FIG. 26 and FIG. 27 may be understood and interpreted by applying supplemental aspects of the device (i.e., the digital broadcast receiving system) described herein.
The digital broadcast receiving system according to the embodiment of the present invention receives a broadcast signal having mobile service data and main service data multiplexed therein (S2710). The digital broadcast receiving system then extracts transmission parameter channel (TPC) signaling information and fast information channel (FIC) signaling information from a data group within the received mobile service data (S2720). Herein, the FIC signaling information may include the C/N indicator, and the TPC signaling information may include the FIC version information. Subsequently, by using the extracted fast information channel (FIC) signaling information and transmission parameter channel (TPC) signaling information, the receiving system detects ensemble configuration information on the current MH frame (S2730).
FIG. 27 illustrates a detailed view of step 2730 shown in FIG. 26. Hereinafter, step 2730 of FIG. 26 will now be described in detail with reference to FIG. 27. More specifically, the digital broadcast receiving system uses FIC version information included in the TPC signaling information of the first MH frame, so as to determine whether or not the FIC signaling information has been modified (S2731). Then, based upon the result of step 2731, when it is determined that the configuration information has been modified, the digital broadcast receiving system uses the C/N indicator included in the FIC signaling information of the second MH frame, so as to determine whether the FIC content of the second MH frame corresponds to the current MH frame or to the next MH frame (S2732). Subsequently, based upon the result of step 2732, when it is determined that the FIC content of the second MH frame corresponds to the next MH frame, the digital broadcast receiving system decides the FIC content of the second MH frame as the ensemble configuration information for a next MH frame of the second MH frame (S2733).
Herein, the second MH frame may correspond to the next MH frame of the first MH frame. And, the FIC content may correspond to information required in a process of decoding a data structure included in the MH frame. Therefore, a received MH frame may be decoded by using the FIC content. Furthermore, the data group includes a plurality of known data sequences. And, the data group may be designed so that the transmission parameter channel (TPC) signaling information and the fast information channel (FIC) signaling information can be positioned between a first known data sequence and a second known data sequence.
The method described herein may be presented in the form of a program command, which may be executed through a diversity of computer devices, so as to be recorded (or written) in a computer readable medium. Herein, the computer readable medium may include a program command, a data file, and a data structure individually or in combination. The program command recorded in the medium may correspond either to a device (or medium) specially designed for the embodiment of the present invention or to a usable device (or medium) disclosed to a computer software manufacturer. Examples of computer readable media may include a hard disk, magnetic media (e.g., floppy disks and magnetic tapes), a CD-ROM, optical media such as DVD, magneto-optical media such as optical disks, and a hardware device specially configured to store and perform program commands, such as ROM, RAM, and flash memories. Examples of the program command may include a machine language code created by a compiler, as well as a high-level language code that can be executed by the computer using an interpreter. The above-described hardware device may be configured to be operated using at least one software module in order to perform an operation, and vice versa.
As described above, the present invention may provide a digital broadcast receiving system and a method for controlling the same that are highly resistant to channel changes and noise. Also, according to another embodiment of the present invention, the digital broadcast receiving system and the method for controlling the same may increase the channel switching speed in a mobile digital broadcasting environment. Finally, the digital broadcast receiving system according to another embodiment of the present invention can easily verify whether or not an error has occurred in the data transmitted through a newly defined fast information channel (FIC).
extracting transmission parameter channel (TPC) signaling information and fast information channel (FIC) signaling information from a data group within the received mobile service data, wherein the FIC signaling information includes a current/next (C/N) indicator, and wherein the TPC signaling information includes FIC version information; and
detecting ensemble configuration information of a current MH frame by using the extracted TPC signaling information and FIC signaling information.
2. The method of claim 1, wherein the C/N indicator corresponds to information identifying whether the corresponding FIC signaling information includes MH ensemble configuration information of a current MH frame, or whether the corresponding FIC signaling information includes MH ensemble configuration information of a next MH frame, and
wherein the FIC version information corresponds to a version number of an FIC body, the FIC body corresponding to an FIC transmission structure transmitted through a respective physical channel.
3. The method of claim 2, wherein the detecting configuration information, further comprises:
determining whether or not the FIC signaling information has been modified by using FIC version information included in the TPC signaling information of the first MH frame;
when the FIC signaling information is modified, determining whether the FIC content of the second MH frame corresponds to a current MH frame or to a next MH frame, by using the C/N indicator included in the FIC signaling information of the second MH frame; and
when the FIC content corresponds to the next MH frame, deciding the FIC content of the second MH frame as the ensemble configuration information for a next frame of the second MH frame.
4. The method of claim 3, wherein the second MH frame corresponds to a next frame of the first MH frame, and wherein the FIC content corresponds to basic information required for decoding a structure of data included in the MH frame.
5. The method of claim 1, wherein the FIC signaling information comprises:
at least one FIC segment header and FIC segment payload configuring a single FIC body.
6. The method of claim 5, wherein the FIC segment header comprises:
information identifying a number of an FIC segment configuring the FIC body, information identifying a number of the last FIC segment configuring the FIC body, and information identifying whether or not a non-recovered FIC segment exists.
deinterleaving a group of more than one FIC segment to a single FIC body, by using the information identifying a number of an FIC segment configuring the FIC body and the information identifying a number of the last FIC segment configuring the FIC body; and
determining whether an error has occurred in the FIC signaling information, by using the information identifying whether or not a non-recovered FIC segment exists.
8. The method of claim 1, wherein the data group comprises a plurality of known data sequences, and
9. A computer-readable recording medium having a program for executing the method of claim 1 recorded therein.
an extractor extracting transmission parameter channel (TPC) signaling information and fast information channel (FIC) signaling information from a data group within the received mobile service data, wherein the FIC signaling information includes a current/next (C/N) indicator, and wherein the TPC signaling information includes FIC version information;
a first determiner determining whether or not the FIC signaling information has been modified, by using FIC version information included in TPC signaling information of a first MH frame;
when the FIC signaling information is modified, a second determiner determining whether an FIC content of a second MH frame corresponds to a current MH frame or to a next MH frame, by using the C/N indicator included in the FIC signaling information of the second MH frame; and
when the FIC content corresponds to the next MH frame, a decider deciding the FIC content of the second MH frame as ensemble configuration information for a next frame of the second MH frame.
11. The digital broadcast receiving system of claim 10, wherein the second MH frame corresponds to a next frame of the first MH frame, and wherein the FIC content corresponds to basic information required for decoding a structure of data included in the MH frame.
12. The digital broadcast receiving system of claim 10, wherein the FIC signaling information comprises:
13. The digital broadcast receiving system of claim 12, wherein the FIC segment header comprises:
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US12/198,071 Expired - Fee Related US7705920B2 (en) 2007-08-24 2008-08-25 Digital broadcasting system and method of processing data in digital broadcasting system
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Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LEE, CHUL SOO;CHOI, IN HWAN;SONG, JAE HYUNG;AND OTHERS;SIGNING DATES FROM 20081013 TO 20081020;REEL/FRAME:021843/0883