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Method and apparatus for transmitting and receiving data in a communication system

A technology for transmitting data and communication systems, which is applied in the field of communication systems, and can solve problems such as the inability to obtain diversity gain and performance degradation of signaling information

Active Publication Date: 2012-10-03
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, signaling information cannot obtain sufficient diversity gain, which leads to performance degradation

Method used

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  • Method and apparatus for transmitting and receiving data in a communication system
  • Method and apparatus for transmitting and receiving data in a communication system
  • Method and apparatus for transmitting and receiving data in a communication system

Examples

Experimental program
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Effect test

Embodiment 1

[0095] N total = N add _ parit y 0 + . . . + N add _ parity s - 1 N ldpc - K ldpc

[0096] If the length of the parity part is greater than the sum of the number of elements in the group of additional parity bits, the group of additional parity bits is created based on the parity bits of the codeword according to the order of the puncturing pattern.

[0097] Figure 5 A rule 3 based frame structure according to an embodiment of the present invention is shown.

[0098] refer to Figure 5 , t...

Embodiment 2

[0105] N total = N add _ pa rity 0 + . . . + N add _ parity s - 1 ≥ N ldpc - K ldqc

[0106] If the length of the parity part is less than or equal to the sum of the number of elements in the group of additional parity bits, the group of additional parity bits is created based on the parity bits and the information bits of the codeword.

[0107] Also, the code word includes an information part and a parity part. Using the same example above, the length of the information part is 7 bits afte...

Embodiment 3

[0149] Figure 7 A rule 4 based frame structure according to an embodiment of the present invention is shown.

[0150] refer to Figure 7 , the codeword includes an information part and a parity part. Using the same example as above, the length of the information part is 7 bits when being shortened, I={i 0 ,i 1 ,...,i 6}, the length of the parity part is 8 bits, P={p 0 ,p 1 ,p 2 ,...,p 7}, and the set of puncturing patterns representing the puncturing order is A={1,5,2,6,4,0,3,7}.

[0151] for N punc =2, s=3, and N add _ parity 0 = N add _ parity 1 = N add _ parity 2 = 2 (wherein, N ...

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Abstract

A method is provided for transmitting data, which improves a diversity effect in a communication system. The method includes transmitting an information word including a codeword in a (k+s)-th frame, generating s groups based on parity bits obtained by encoding the information word, and transmitting the s groups in s frames preceding the (k+s)-th frame, in a distributed manner.

Description

technical field [0001] The present invention generally relates to communication systems, and more particularly, to transmission and reception methods and apparatus for obtaining diversity effects. Background technique [0002] In wireless communication systems, link performance is significantly degraded due to various noises and channel attenuation as well as inter-symbol interference (ISI). Therefore, in order to realize high-speed digital communication systems that provide high data throughput and reliability, such as next-generation mobile communication systems, digital broadcasting systems, and mobile Internet systems, it is important to develop techniques for overcoming noise, fading, and ISI. Recently, error correcting codes have been studied to improve communication reliability by efficiently recovering information distortion. [0003] Low-density parity-check (LDPC) codes, first proposed in the 1960s, were never commonly implemented due to the complexity of their im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M13/11H04B7/02
CPCH03M13/11H03M13/116H03M13/255H04B1/7115H04B7/04
Inventor 郑鸿实尹圣烈金宰烈梁贤九李学周明世澔郑晋熙
Owner SAMSUNG ELECTRONICS CO LTD
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