Invention Grant
- Patent Title: Estimating the frequency response of multipath channels
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Application No.: US15811595Application Date: 2017-11-13
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Publication No.: US10419137B2Publication Date: 2019-09-17
- Inventor: Brian Michael Berscheid , Tung Trong Nguyen , Joseph Eric Salt , Ha Hoang Nguyen
- Applicant: Vecima Networks Inc.
- Applicant Address: CA Victoria
- Assignee: VECIMA NETWORKS INC.
- Current Assignee: VECIMA NETWORKS INC.
- Current Assignee Address: CA Victoria
- Agency: Slayden Grubert Beard PLLC
- Main IPC: H04L12/26
- IPC: H04L12/26 ; H04B17/309 ; H04L27/26 ; H04L25/02

Abstract:
In a digital communication system there is provided a method for OFDM channel estimation that jointly considers the effects of coarse timing error and multipath propagation. The method uses an iterative channel estimation technique, which considers the practical scenario of fractional timing error and non-sample space echo delays. The method does not require channel state information such as second-order statistic of the channel impulse responses or the noise power. Moreover, timing error can be conveniently obtained with the proposed technique. Simulation shows that, when comparing OFDM channel estimation techniques under DOCSIS 3.1 realistic channel conditions, the proposed algorithm significantly outperforms conventional methods.
Public/Granted literature
- US20180337740A1 Method of estimating the frequency response of multipath channels Public/Granted day:2018-11-22
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