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Radio physical layer channel code chain processing method

A technology of physical layer channel and processing method, applied in the field of wireless physical layer channel coding link processing

Active Publication Date: 2007-12-19
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no channel coding link processing method using the above four technologies at the same time or no channel coding link processing method using the above four technologies at the same time.

Method used

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  • Radio physical layer channel code chain processing method
  • Radio physical layer channel code chain processing method
  • Radio physical layer channel code chain processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] Suppose the information block bit data sequence I(i 0 , i 1 ,..., i K-1 ), where K is the bit data length of the information block, i k (0≤k≤K-1) is binary bit data.

[0095] The bit data I of the information block is Turbo-encoded, and the Turbo-encoded codeword bit stream sequence C(c 0 , c 1 ,... c 3×S-1 ).

[0096] Perform a bit separation operation on the turbo coded output codeword bit stream sequence C to separate the system bit stream sequence S(s 0 ,s 1 ,...s S-1 ), the first parity bit stream sequence P 1 (p 0 1 ,p 1 1 ,...p S-1 1 ) and the second check bit stream sequence P 2 (p 0 2 ,p 1 2 ,...p S-1 2 ).

[0097] The separated system bit stream sequence S, the first check bit stream sequence P 1 and the second parity bit stream sequence P 2 Perform sub-block interleaving respectively, and the system bit stream sequence S after sub-block interleaving I (s 0 I ,s 1 I ,...,s S-1 I ), the first parity bit stream sequence P1 after s...

Embodiment 2

[0107] If the information block bit data vector I(i 1 , i 2 ,..., i K ), where K is the bit data length of the information block, i k (1≤k≤K) is binary bit data.

[0108] Since the QPP interleaving in the Turbo encoder does not support the interleaving of continuous length information blocks, when the bit data length of the information block does not meet the QPP interleaving length requirements, it is necessary to perform a "padding" operation before the bit data of the information block. "0" bits. The information block bit data vector X(x 1 , x 2 ,...,x S ), where S is the bit data length of the information block after "filling". Bit (x 1 , x 2 ,...x S-K ) is "0" bit data of "filling".

[0109] The information block bit data X after "filling" is input into the Turbo encoder based on QPP interleaving for encoding, which is divided into the following five sub-steps: (1) The information block bit data X after "filling" is input into the first member encoder for encod...

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Abstract

This invention relates to a channel coding link process method of wireless physical layer including: carrying out Turbo coding to information block bit data, carrying out rate match to the Turbo coded code bit based on circulation buffer storage, and bit priority mapping modulation to the system bit stream and verified bit stream.

Description

technical field [0001] The present invention relates to wireless communication, in particular to a wireless physical layer channel coding link processing method. Background technique [0002] In a wireless communication system, the channel coding link is the underlying technology of the physical layer, which determines the underlying transmission performance and reliability of the wireless communication system. In the latest 3GPP LTE standard research, the channel coding link adopts a series of latest technologies, which improves the transmission performance of the physical layer while simplifying the implementation complexity. Among them: In the latest 3GPP standard protocol, ①Turbo code based on Quadratic Polynomial Permutation (QPP) interleaver is adopted as the channel coding scheme for data services; ②Rate matching based on Circular Buffer is adopted The method realizes that the length of the sent data matches the size of the allocated physical channel resources. At t...

Claims

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Application Information

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IPC IPC(8): H04L1/00H03M13/09H03M13/23
CPCH04L1/0066H04L1/0067H04L1/0071
Inventor 包国平徐俊袁志锋
Owner ZTE CORP
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