TRANSMITTING SYSTEM AND METHOD FOR TRANSMITTING DIGITAL BROADCAST SIGNAL

• US 20110150001A1
• Filed: 12/17/2010
• Published: 06/23/2011
• Est. Priority Date: 12/21/2009
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: KIM, Byoung Gill, CHOI, In Hwan, SONG, Won Gyu, KIM, Jin Woo, SONG, Jae Hyung, MUN, Chul Kyu, LEE, Hyoung Gon
• Granted Patent: US 8,681,679 B2
• Time in Patent Office: Days
• US Class Current: 370/474
• CPC Class Codes: H03M 13/09 Error detection only, e.g. using cyclic redundancy check [CRC] codes or single parity bit
• CPC Class Codes: 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
• CPC Class Codes: H03M 13/1515 Reed-Solomon codes
• CPC Class Codes: H03M 13/2909 Product codes
• CPC Class Codes: H03M 13/2921 wherein error correction coding involves a diagonal direction
• CPC Class Codes: H03M 13/2957 Turbo codes and decoding
• CPC Class Codes: H03M 13/296 Particular turbo code structure
• CPC Class Codes: H03M 13/2966 Turbo codes concatenated with another code, e.g. an outer block code
• CPC Class Codes: H03M 13/2972 Serial concatenation using convolutional component codes
• CPC Class Codes: H03M 13/356 Unequal error protection [UEP]
• CPC Class Codes: H03M 13/6356 by repetition or insertion of dummy data, i.e. rate reduction
• CPC Class Codes: 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
• CPC Class Codes: H04L 1/0047 Decoding adapted to other signal detection operation in conjunction with sequence estimation or equalization H04L25/03286
• CPC Class Codes: H04L 1/0057 Block codes H04L1/0061, H04L1/0064 take precedence
• CPC Class Codes: H04L 1/006 Trellis-coded modulation
• CPC Class Codes: H04L 1/007 Unequal error protection for format H04L1/0078; for codes per se H03M13/35
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 12/18 for broadcast or conference , e.g. multicast
• CPC Class Codes: H04L 2027/0042 the equaliser providing the offset correction per se
• CPC Class Codes: H04L 27/0014 Carrier regulation of chaotic carriers H04L27/001; for multicarrier receivers H04L27/2657
• CPC Class Codes: H04L 27/02 : Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation H04L27/32 takes precedence
• CPC Class Codes: H04L 5/0048 : Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 69/03 : Protocol definition or specification protocol conformance testing H04L1/244
• CPC Class Codes: H04L 69/26 : Special purpose or proprietary protocols or architectures network applications for proprietary or special purpose networking environments H04L67/12
• CPC Class Codes: H04W 4/06 : Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

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

1. A method for transmitting digital broadcast signal, the method comprising:

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,

wherein the first transmission mode is a mode in which the mobile service data are transmitted while reserving greater than 118 packets out of 156 packets in the slot and a second transmission mode is in which the mobile service data are transmitted while reserving less than or equal to 118 packets out of 156 packets in the slot;

transmitting the digital broadcast signal including the data group.

2. The method of claim 1,

wherein the protocol version field includes 5 bits in which 2 bits indicate that a non-backward compatible level of change to the signaling data and 3 bits indicate a backward compatible level of change to the signaling data.

3. The method of claim 1,

wherein the data transmission parameter includes an extension mode field indicating a number of mobile service data packets exceeding 118 in the data group.

4. The method of claim 1,

wherein the data transmission parameter includes a transmission parameter field indicating a number of mobile service data packets exceeding 118 in a data group of other data frame,

wherein the data frame includes 5 consecutive sub frames, and

wherein the sub frame includes 16 consecutive slots, a slot is a time period during which the data group is transmitted.

5. The method of claim 1,

wherein the protocol version field includes 5 bits, at least one of which is changed to indicate that a structure of the signaling data is changed.

6. An apparatus for transmitting digital broadcast signal, the apparatus comprising:

a signaling encoder configured to generate 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;

a group formatter configured to form a data group including mobile service data and the signaling data,

a packet formatter configured to form mobile service data packets including the mobile service data and the signaling data in the data group,

wherein the first transmission mode is a mode in which the mobile service data are transmitted while reserving greater than 118 packets out of 156 packets in the slot and a second transmission mode is in which the mobile service data are transmitted while reserving less than or equal to 118 packets out of 156 packets in the slot;

a transmission unit configured to transmit the digital broadcast signal including the data group.

7. The apparatus of claim 6,

wherein the protocol version field includes 5 bits in which 2 bits indicate that a non-backward compatible level of change to the signaling data and 3 bits indicate a backward compatible level of change to the signaling data.

8. The apparatus of claim 6,

wherein the data transmission parameter includes an extension mode field indicating a number of mobile service data packets exceeding 118 in the data group.

9. The apparatus of claim 6,

wherein the data transmission parameter includes a transmission parameter field indicating a number of mobile service data packets exceeding 118 in a data group of other data frame,

wherein the data frame includes 5 consecutive sub frames, and

wherein the sub frame includes 16 consecutive slots, a slot is a time period during which the data group is transmitted.

10. The apparatus of claim 6,

wherein the protocol version field includes 5 bits, at least one of which is changed to indicate that a structure of the signaling data is changed.