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Encoding method and device thereof

A coding method and coding technology, which are applied in the field of communication networks, can solve the problems of no information volume, frequency diversity and time diversity gains, etc., and achieve the effect of improving transmission performance

Active Publication Date: 2010-07-07
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that the defect of the prior art lies in that: if the current RM code matrix is ​​used for encoding, some information bits will have no amount of information on the continuous modulation symbols, so that sufficient frequency diversity and time can not be obtained. diversity gain

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  • Encoding method and device thereof
  • Encoding method and device thereof

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Embodiment 1

[0028] An embodiment of the present invention provides an encoding method, which includes: encoding input information bits according to an encoding matrix (in this embodiment, the encoding matrix is ​​denoted by G) and a linear combination formula (or called an encoding formula); Among them, the linear combination formula is:

[0029] In this formula, b i is the encoded output bit; i=0, 1, 2,..., B-1; M i，n is the corresponding element in the encoding matrix; a n For input information bits, n=0,...A-1; A, B are positive integers greater than zero;

[0030] In the embodiment of the present invention, the coding matrix used is a coding matrix with multiple consecutive 0s in one or more columns (in this embodiment, the coding matrix with multiple consecutive 0s in one or more columns is denoted by H Indicates) the coding matrix after row permutation.

[0031] In this embodiment, the A represents the value of the input information bit, and the B represents the value of the o...

Embodiment 2

[0035] An embodiment of the present invention provides an encoding method. The encoding method in the embodiment of the present invention will be described below by taking B=20 as an example.

[0036] The method includes: using a coding matrix and a linear combination formula to code information bits;

[0037] The linear combination formula is: b i = Σ n = 0 A - 1 ( a n · M i , n ) mod 2 ;

[0038] Among them, bi is the output bit after RM encoding; i=0,1,2,..., B-1, B=20; M i，n is the corresponding element in the encoding matrix; a n is the information bit, n=0,...A-1;

[0039] In this embodiment, the number of out...

Embodiment 3

[0068] An embodiment of the present invention provides an encoding method. In the following, the (20, A) encoding of the channel quality information CQI transmitted on the PUCCH channel is taken as an example for description with reference to the accompanying drawings.

[0069] Step 201, generate channel quality information (CQI) A information bits to be transmitted on the PUCCH channel, denoted as a here 0 , a 1 , a 2 , a 3 ,...,a A-1 , in this embodiment, the number of bits of the CQI, that is, the value of A is determined by the specific reporting mode of the CQI.

[0070] Step 202, use any one of the encoding matrices in Table 1-Table 6 and the linear combination formula to perform (20, A) RM encoding on the generated A information bits, that is, the A information bits are encoded to generate 20 bits through linear combination coded bits. In this embodiment, the (20, A) encoding used is a linear combination of 13 basic sequences Mi, n of any encoding matrix in Table ...

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Abstract

The invention provides an encoding method and a device thereof. The method comprises the following step of encoding an input information bit according to an encoding matrix G and a linear combination formula; the linear combination formula is as follows: bi is equal to the sum of (an*M1,n)mod2 from n to A-1,, wherein bi is the encoded output bits, and i is equal to 0, 1, 2 until B-1; M1,n is corresponding elements in the encoding matrix; an is the input information bit, and n ranges from 0 to A-1; A and B are positive integers greater than zero; and the encoding matrix G is an encoding matrix obtained by carrying out row replacement on an encoding matrix H with at least one line having a plurality of continuous zeros. The information bits are uniformly distributed on all encoded output bits as far as possible through utilizing the encoding matrix G of the encoding method to encode or through carrying out bit mapping on the encoded information, thereby ensuring that the information bit obtains sufficient frequency diversity and time diversity after channel mapping and effectively improving the transmission performance of control information.

Description

technical field [0001] The invention relates to communication network technology, in particular to an encoding method and device thereof. Background technique [0002] In the Long Term Evolution (LTE: Long Term Evolution) system, uplink physical channels include: Physical Uplink Shared Channel (PUSCH: Physical Uplink Shared Channel), Physical Uplink Control Channel (PUCCH: Physical Uplink Control Channel) and Physical Random Access Channel ( PRACH: Physical Random Access Channel). Generally speaking, uplink data is transmitted on the physical uplink shared channel PUSCH, and uplink control signaling is carried on the physical uplink control channel PUCCH for transmission, mainly including channel quality indicator (CQI: Channel Quality Indicator) signaling, positive / negative acknowledgment (ACK / NACK: Acknowledged / non-acknowledged) message and scheduling request message. [0003] When the user equipment (UE: User Equipment) sends CQI information (or sends CQI and ACK / NACK ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M13/00H04L1/02
CPCH03M13/6525H03M13/136H04L1/0072H03M13/2757H04L1/0026
Inventor 李元杰陈实
Owner HUAWEI TECH CO LTD
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