Invention Grant
- Patent Title: Method and receiver for estimating the channel impulse response using a constant modulus interference removal iteration
- Patent Title (中): 用于使用恒模干涉去除迭代估计信道脉冲响应的方法和接收机
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Application No.: US13429662Application Date: 2012-03-26
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Publication No.: US08842776B2Publication Date: 2014-09-23
- Inventor: Huan Wu , Sean Simmons , Zoltan Kemenczy
- Applicant: Huan Wu , Sean Simmons , Zoltan Kemenczy
- Applicant Address: CA Waterloo, Ontario
- Assignee: BlackBerry Limited
- Current Assignee: BlackBerry Limited
- Current Assignee Address: CA Waterloo, Ontario
- Agency: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- Main IPC: H04L27/00
- IPC: H04L27/00 ; H04L25/08 ; H04B1/10 ; H04L25/02 ; H04L25/03

Abstract:
A receiver and associated method estimates a channel impulse response of the communications signal. A communications signal is received as a burst of transmitted symbols, including a known training sequence. The joint estimation of timing offset and initial channel impulse response is determined based on the cross-correlations of the known transmitted symbols and received communications signal. A constant modulus interference removal iteration is applied to improve the initial channel impulse estimation.
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