Method for encoding information object and encoder using the same

• US 8,675,646 B2
• Filed: 12/10/2010
• Issued: 03/18/2014
• Est. Priority Date: 12/10/2009
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jung, Hee-Won, Koh, Jun-Ho, Lee, Sang-Mook, Lee, Gi-Sang, Zhidkov, Sergey
• Primary Examiner(s): Nguyen, Hanh N
• Application Number:
  US12/965,492
• Publication Number:
  US 20110142073A1
• Time in Patent Office: 1,194 Days
• Field of Search: 375/146, 375/240.24, 375243-248, 375/253, 375/264, 375/265, 370/328, 370/329, 370/330, 370535-537, 370/411, 370/412, 370/413, 370/426
• US Class Current: 370/384
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/0059 Convolutional codes
• 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 1/0072 Error control for data other than payload data, e.g. control data
• CPC Class Codes: H04L 1/0086 Unequal error protection H04L27/00 and H04L1/004 take precedence for layer 1/2 aspects, e.g. bit loading
• CPC Class Codes: H04L 1/08 by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence

Abstract

A method for encoding an information object in a communication system by storing the information object in a buffer; generating a sampling set including bits randomly selected from the buffer and bits regularly selected from the buffer; generating control channel data including a sampling set number of the sampling set and size information for the information object; and modulating the sampling set and the control channel data.

Claims

1. A method for encoding an information object in a communication system, the method comprising the steps of:

storing the information object in a precoder buffer;

generating a sampling set including bits selected from the precoder buffer accordingly to a predetermined rule and bits randomly selected from the precoder buffer;

generating control channel data including a sampling set number of the sampling set and size information for the information object; and

modulating the sampling set and the control channel data.

2. The method of claim 1, further comprising repeating and interleaving bits of the information object, before storing the information object.

3. The method of claim 2, further comprising encoding the repeated and interleaved bits of the information object by using a predefined code, before storing the information object.

4. An encoder comprising:

a precoder for encoding an information object and storing the encoded information object in a precoder buffer;

a sample number/address generator for generating a sampling set number and addresses of the precoder buffer, the addresses corresponding to bits selected from a sampling set according to a predetermined rule and bits randomly selected from the sampling set;

a multiplexer for selecting the bits of the precoder buffer, corresponding to the addresses generated by the sample number/address generator;

a sampling set buffer for storing the sampling set output from the multiplexer;

a control packet generator for generating control channel data including information on the sampling set number generated by the sample number/address generator and size information for the information object;

a packet assembler for assembling the sampling set stored in the sampling set buffer with the control channel data generated by the control channel generator; and

a modulator for modulating a packet output from the packet assembler in a predefined scheme.

5. The encoder of claim 4, wherein the sample/address generator comprises:

a random address generator for outputting a random value; and

a regular address generator for outputting a regular value according to the predetermined rule.

6. The encoder of claim 4, wherein the sample number/address generator comprises a sampling set number generator for generating the sampling set number for use in identification of the sampling set in a predefined cycle.

7. The encoder of claim 4, wherein the precoder comprises:

a container packer for adding a header label to the information object and setting bits for integrity check in order to pack the information object into a standard container; and

a repeater/interleaver for repeating and interleaving output data from the container packer.

8. The encoder of claim 7, wherein the precoder further comprises a convolution encoder for encoding data output from the repeater/interleaver and storing the encoded data in the precoder buffer.