Digital broadcasting system and method of processing data in digital broadcasting system

• US 8,917,727 B2
• Filed: 02/26/2014
• Issued: 12/23/2014
• Est. Priority Date: 09/20/2007
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Chul Soo, Choi, In Hwan, Song, Jae Hyung, Kim, Jin Pil, Suh, Jong Yeul
• Primary Examiner(s): HO, DUC CHI
• Application Number:
  US14/191,019
• Publication Number:
  US 20140177567A1
• Time in Patent Office: 300 Days
• Field of Search: None
• US Class Current: 370/392
• CPC Class Codes: H04L 1/0045 Arrangements at the receiver end
• CPC Class Codes: H04L 1/007 Unequal error protection for format H04L1/0078; for codes per se H03M13/35
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/2383 Channel coding or modulation of digital bit-stream, e.g. QPSK modulation arrangements for detecting or preventing errors in the information received by adapting the channel coding H04L1/0009; analogue front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/41407 embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop constructional details of equipment or arrangements specially adapted for portable computer application G06F1/1626; arrangements specially adapted for mobile receivers in broadcast systems H04H20/57
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04N 21/4382 Demodulation or channel decoding, e.g. QPSK demodulation analog front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/6131 involving transmission via a mobile phone network wireless downlink channel access H04W74/006
• CPC Class Codes: H04N 21/64322 IP
• CPC Class Codes: H04N 5/455 Demodulation-circuits
• CPC Class Codes: H04N 5/50 Tuning indicators; Automatic tuning control
• CPC Class Codes: H04W 72/30 Resource management for broadcast services

Abstract

A digital broadcasting system and a data processing method are disclosed. A receiver receives a broadcast signal including mobile service data and main service data. A known data detector detects known data from the broadcast signal. An equalizer performs channel equalization on the mobile service data received by means of the detected known data. An RS frame decoder acquires an RS frame from the channel-equalized mobile service data. A management processor extracts a Generic Stream Encapsulation (GSE) packet from a GSE Base Band (BB) constructing one row of the RS frame, and calculates an IP datagram from the extracted GSE packet. A presentation processor displays broadcast data using data contained in the calculated IP datagram.

Claims

1. A method of processing broadcast data in a transmitter, the method comprising:

encoding mobile service data of a path, the path carrying one or multiple services;

first encoding first signaling data, wherein the first signaling data include information to enable fast service acquisition;

second encoding the first-encoded first signaling data;

first encoding second signaling data, wherein the second signaling data include information to identify the path;

second encoding the first-encoded second signaling data; and

transmitting a broadcast signal including the encoded mobile service data, the second-encoded first signaling data and the second-encoded second signaling data,

wherein the mobile service data are included in a payload of a data packet having a header, the header being compressed.

2. The method of claim 1, wherein the broadcast signal further includes main service data multiplexed with the mobile service data.

3. The method of claim 1, wherein the second signaling data further include information to indicate a change in the first signaling data.

4. The method of claim 1, wherein the header of the data packet is compressed by an RoHC (Robust Header Compression) scheme.

5. A transmitter for processing broadcast data, the transmitter comprising:

an encoder for encoding mobile service data of a path, the path carrying one or multiple services;

a first signaling data encoder for first encoding first signaling data and second encoding the first-encoded first signaling data, wherein the first signaling data include information to enable fast service acquisition;

a second signaling data encoder for first encoding second signaling data and second encoding the first-encoded second signaling data, wherein the second signaling data include information to identify the path; and

a transmitting unit for transmitting a broadcast signal including the encoded mobile service data, the second-encoded first signaling data and the second-encoded second signaling data,

wherein the mobile service data are included in a payload of a data packet having a header, the header being compressed.

6. The transmitter of claim 5, wherein the broadcast signal further includes main service data multiplexed with the mobile service data.

7. The transmitter of claim 5, wherein the second signaling data further include information to indicate a change in the first signaling data.

8. The transmitter of claim 5, wherein the header of the data packet is compressed by an RoHC (Robust Header Compression) scheme.