Title:
無線通信デバイスにおいて同一チャネル干渉を減少させる結合復調フィルタおよび関連する方法
Document Type and Number:
Japanese Patent JP4845965
Kind Code:
B2
Abstract:
A joint demodulation filter for reducing co-channel interference between a desired signal and a co-channel interfering signal may include an input receiving samples of the desired signal and the co-channel interfering signal, a Viterbi decoder, and a first signal path between the input and the Viterbi decoder comprising a first filter. The joint demodulation filter may further include a second signal path between the input and the Viterbi decoder and comprising a linear finite impulse response (FIR) modeler for generating a channel impulse response estimate for the co-channel interfering signal. Additionally, a third signal path may be between the input and the Viterbi decoder and include a whitened matched filter for generating a channel impulse response estimate for the desired signal.
Inventors:
Kenmenji, Zoltan
Wu
Simmons, Shawn
Wu
Simmons, Shawn
Application Number:
JP2008527280A
Publication Date:
December 28, 2011
Filing Date:
August 23, 2006
Export Citation:
Assignee:
Research In Motion Limited
International Classes:
H04B7/005; H04B1/10
Domestic Patent References:
| JPH05152894A | 1993-06-18 | |||
| JP2000031870A | 2000-01-28 |
Attorney, Agent or Firm:
Takeshi Oshio