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Signal channel estimation method and device thereof

A channel estimation and frequency domain channel technology, which is applied in the field of channel estimation in the communication field to achieve the effect of reducing requirements and simplifying complexity

Active Publication Date: 2010-08-25
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The purpose of the present invention is to provide a channel estimation method and its device to overcome the problem of Doppler frequency shift between training sequence and data sequence, so that the result of channel estimation is more accurate

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  • Signal channel estimation method and device thereof
  • Signal channel estimation method and device thereof
  • Signal channel estimation method and device thereof

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Abstract

The invention discloses a signal channel estimation method and a device thereof, which relate to the field of communication. In the invention, data in information data blocks of both sides of a received training sequence code is used as receiving data of the signal channel estimation. Because the signal channel estimation relatively obtained through the training sequence is directly used as the signal channel estimation of the data sequence in a traditional signal channel estimation method based on the training sequence, the server loss of the performance can be caused. Thereby, the inventioncan avoid the problem of server loss of the performance caused by Doppler frequency shift between the training sequence and the data sequence. In addition, the data information sequence has longer length than the training sequence, so the data in the information data blocks of both sides of the training sequence code is used as the receiving data of the signal channel estimation, and the result of the signal channel estimation is more accurate.

Description

Channel Estimation Method and Device technical field The invention relates to the communication field, in particular to channel estimation technology in the communication field. Background technique The traditional Global System for Mobile communication (Global System for Mobile communication, referred to as "GSM") adopts the time-domain channel estimation method based on the training sequence, and uses the training sequence code in the middle of the GSMburst (data burst) to perform time-domain correlation calculations to obtain the time-domain impulse response of the channel. , as the channel impulse response of the data portion on both sides. The structure of a burst in the GSM system is shown in Figure 1 (four bursts form a GSM subframe), the 26 symbols in the middle are the training sequence code TS for channel estimation, and two bursts consisting of 57 symbols on both sides The data block is an information data block. A coding block includes such four bursts, a to...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04L25/03H04L25/02H04L1/00
Inventor 周秦英张小东章程
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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