Method for dividing and implementing uplink HARQ feedback channel resources

A feedback channel and feedback information technology, applied in the division and realization of uplink HARQ feedback channel, to achieve the effect of ensuring transmission performance

Inactive Publication Date: 2010-03-10
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Considering the need for a technology in the related art to solve the problem of how to efficiently use the limited uplink channel resources and ensure the transmission performance of the feedback message, the present invention is proposed. Therefore, the main purpose of the present invention is to provide A method for dividing and implementing an uplink HARQ feedback channel to solve the above problems

Method used

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  • Method for dividing and implementing uplink HARQ feedback channel resources
  • Method for dividing and implementing uplink HARQ feedback channel resources
  • Method for dividing and implementing uplink HARQ feedback channel resources

Examples

Experimental program
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Effect test

example 1

[0076] figure 2 A schematic diagram showing the structure of logical resource blocks in the uplink HARQ feedback channel region in the prior art, as shown in figure 2As shown, in an LRU (uplink logical resource block), one LRU contains 2 Tile, wherein each Tile occupies 6 consecutive symbols in the time domain and 9 subcarriers in the frequency domain, forming a 9*6 A rectangular resource block area (M=9, L=6).

[0077] image 3 It shows a schematic diagram of the division method of the data area and the pilot area according to the first implementation, as shown in image 3 As shown, will figure 2 The two Tile shown constitute an uplink HARQ feedback channel transmission unit. Specifically, the following operations are performed on each Tile: all carriers included in symbols 1, 3, 4, and 6 are divided into data areas, where L1=4, and All subcarriers included in symbols 2 and 5 are divided into pilot regions, where L2=2.

[0078] Multiplex N=16 HARQ feedback channels in...

example 2

[0111] will be like figure 2 The two Tile in the LRU constitute an uplink HARQ feedback channel transmission unit, Figure 6 It is a schematic diagram of the division method of the data area and the pilot area according to the second implementation, such as Figure 6 As shown, the following operations are performed on each Tile: all carriers included in symbols 1, 2, 5, and 6 are divided into data regions, where L1=4, and all subcarriers included in symbols 3 and 4 are divided into pilot regions, where L2=2.

[0112] Multiplex N=8 HARQ feedback channels in the above HARQ feedback channel transmission unit, and spread the number N in the frequency domain f =4, the spreading number N in the time domain t =2, where each HARQ feedback channel occupies all subcarriers of the entire HARQ feedback channel transmission unit. Since each HARQ feedback channel repeatedly modulates the first Tile on the second Tile it contains, that is, the same operation is performed on the two Tile...

example 3

[0145] Figure 9 It shows a schematic diagram of the division method of the data area and the pilot area according to the third implementation, as shown in Figure 9 As shown, will figure 2 In one of the LRUs shown, one LRU contains 3 Tile, where each Tile occupies 6 consecutive symbols in the time domain and 6 subcarriers in the frequency domain, forming a 6*6 rectangular resource block area (M=6, L=6), these 3 Tiles constitute an uplink HARQ feedback channel transmission unit, specifically, the following operations are performed on each Tile: all carriers included in symbols 1, 3, 4, and 6 are divided into In the data region, where L1=4, all subcarriers included in symbols 2 and 5 are divided into pilot regions, where L2=2.

[0146] Multiplex N=12 HARQ feedback channels in the above-mentioned HARQ feedback channel transmission unit, and the spreading number N in the frequency domain f =6, the spreading number N in the time domain t =2, where each HARQ feedback channel o...

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Abstract

The invention discloses a method for dividing uplink HARQ feedback channels and a method for implementing uplink HARQ feedback channels. The method for dividing the uplink HARQ feedback channels is used in an uplink frame structure of a wireless communication system, and the method comprises that: an uplink HARQ feedback area consists of a plurality of logic resource blocks, the plurality of logic resource blocks are divided into a plurality of fragments, all the fragments are divided into N HARQ feedback channel transmission units, and the N is a natural number, wherein each HARQ feedback channel transmission unit comprises a plurality of fragments, and the HARQ feedback channel transmission units do not comprise the same fragments; and the fragments of the HARQ feedback channel transmission units are divided into a data area and a pilot area according to the same mode respectively. Through the method, a plurality of HARQ feedback channels are multiplexed to the same HARQ feedback channel transmission unit in a code division multiplexing mode so as to utilize the uplink channel resources and ensure the transmission performance of feedback information.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for dividing and realizing an uplink HARQ feedback channel. Background technique [0002] Hybrid Automatic Repeat Request (HARQ for short) combines automatic repeat request technology (Automatic Repeat Request, short for ARQ) and forward error correction coding (Forward Error Correction, short for FEC) technology to detect errors and correct. For each HARQ data packet sent by the sending end, the receiving end performs verification after data demodulation and decoding. If the verification is correct, the receiving end feeds back a message of successful reception (correct response, ACK) to the sending end, and the sending end sends a message to the sending end. The receiving end sends a new data packet; if the verification fails, the receiving end feeds back the message of receiving failure (error response, NACK) to the sending end, and the sending end will retransmit the faile...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L1/16H04L25/03
Inventor 朱登魁
Owner ZTE CORP
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