# US 2014/0153585 A1 · Transmitting system and method for transmitting digital broadcast signal

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- Number: US 2014/0153585 A1
- Document ID: US20140153585A1
- Status: Published application
- Kind: A1
- Application number: 14/175,817
- Filed: 2014-02-07
- Published: 2014-06-05
- Earliest claimed: 2009-12-21
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Won Gyu SONG; Byoung Gill KIM; Jin Woo KIM; Hyoung Gon LEE; Jae Hyung SONG; In Hwan CHOI; Chul Kyu MUN
- Web page: https://patentgrep.com/patent/US20140153585A1

## CPC

- H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)}
- H03M 13/2909: {Product codes}
- H03M 13/2921: {wherein error correction coding involves a diagonal direction}
- H03M 13/2966: {Turbo codes concatenated with another code, e.g. an outer block code}
- H03M 13/356: {Unequal error protection [UEP]}
- H03M 13/6356: {by repetition or insertion of dummy data, i.e. rate reduction}
- H04L 1/0042: {Encoding specially adapted to other signal generation operation, e.g. in order to reduce transmit distortions, jitter, or to improve signal shape (H04L1/0067 takes precedence)}
- H04L 1/0047: {Decoding adapted to other signal detection operation (in conjunction with sequence estimation or equalization H04L25/03286)}
- H04L 1/0057: {Block codes (H04L1/0061, H04L1/0064 take precedence)}
- H04L 1/006: {Trellis-coded modulation}
- H04L 1/007: {Unequal error protection (for format H04L1/0078; for codes per se H03M13/35)}
- H04L 1/0071: {Use of interleaving (interleaving per se H03M13/27)}
- H04L 12/18: for broadcast or conference {, e.g. multicast}
- H04L 27/0014: {Carrier regulation (of chaotic carriers H04L27/001; for multicarrier receivers H04L27/2657)}
- H04L 27/02: Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation (H04L27/32 takes precedence)
- H04L 69/03: {Protocol definition or specification (protocol conformance testing H04L1/244)}
- H04L 69/26: {Special purpose or proprietary protocols or architectures (network applications for proprietary or special purpose networking environments H04L67/12)}
- H04W 4/06: Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H03M 13/09: Error detection only, e.g. using cyclic redundancy check [CRC] codes or single parity bit
- H03M 13/15: Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes (H03M13/17 takes precedence)
- H03M 13/1515: {Reed-Solomon codes}
- H03M 13/2957: {Turbo codes and decoding}
- H03M 13/296: {Particular turbo code structure}
- H03M 13/2972: {Serial concatenation using convolutional component codes}
- H04L 2027/0042: {the equaliser providing the offset correction per se}
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H03M: CODING; DECODING; CODE CONVERSION IN GENERAL (using fluidic means F15C4/00; optical analogue/digital converters G02F7/00; coding, decoding or code conversion, specially adapted for particular applications, see the relevant subclasses, e.g. G01D, G01R, G06F, G06T, G09G, G10L, G11B, G11C, H04B, H04L, H04M, H04N; ciphering or deciphering for cryptography or other purposes involving the need for secrecy G09C)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A transmitting system and a method of transmitting digital broadcast signal are disclosed. The method of transmitting digital broadcast signal includes generating signaling data including a transmission parameter, wherein the transmission parameter includes a protocol version field identifying between a first transmission mode and a second transmission mode, forming a data group including mobile service data and the signaling data, forming mobile service data packets including the mobile service data and the signaling data in the data group, transmitting the digital broadcast signal including the data group.

## Claims

### Claim 1

A method for transmitting broadcast signals, the method comprising:
FEC (Forward Error Correction) encoding mobile data and main data for broadcast service;
encoding the FEC encoded mobile data and main data using specific code rates;
encoding transmission parameters including the specific code rates and FIC (fast information channel) data carrying cross-layer information to enable fast service acquisition;
generating data frames including the encoded mobile data, main data, transmission parameters and FIC data; and
transmitting the broadcast signals including the data frames,
wherein the transmission parameters further include first information specifying a transmission mode which is determined according to a presence of the main data in the data frames.

### Claim 2 (depends on 1)

The method of claim 1, wherein the transmission parameters further include second information specifying a ratio of the mobile data and the main data in the data frames.

### Claim 3 (depends on 1)

The method of claim 1, wherein the data frames further include known data being used for channel equalization.

### Claim 4 (depends on 1)

The method of claim 1, wherein the transmission parameters further include version information indicating a version of the FIC data.

### Claim 5

An apparatus for transmitting broadcast signals, the apparatus comprising:
a first encoder configured to FEC (Forward Error Correction) encode mobile data and main data for broadcast service;
a second encoder configured to encode the FEC encoded mobile data and main data using specific code rates;
a signaling encoder configured to encode transmission parameters including the specific code rates and FIC (fast information channel) data carrying cross-layer information to enable fast service acquisition;
a generating unit configured to generate data frames including the encoded mobile data, main data, transmission parameters and FIC data; and
a transmission unit configured to transmit the broadcast signals including the data frames,
wherein the transmission parameters further include first information specifying a transmission mode which is determined according to a presence of the main data in the data frames.

### Claim 6 (depends on 5)

The apparatus of claim 5, wherein the transmission parameters further include second information specifying a ratio of the mobile data and the main data in the data frames.

### Claim 7 (depends on 5)

The apparatus of claim 5, wherein the data frames further include known data being used for channel equalization.

### Claim 8 (depends on 5)

The apparatus of claim 5, wherein the transmission parameters further include version information indicating a version of the FIC data.