Title:
入力ノイズ白色化フィルタの適応動作によって受信信号をフィルタする装置および関連方法
Document Type and Number:
Japanese Patent JP4778007
Kind Code:
B2
Abstract:
Apparatus, and an associated method, for the receive part of a receiving station, such as a mobile station or other transceiver of a cellular communication system. Selection is made of filter characteristics to be exhibited by an adaptive, input noise whitening filter. A noise estimator estimates a noise component of a noise sequence. An autocorrelation estimator estimates the noise-component autocorrelation. A determination is made as to whether the autocorrelation exceeds a threshold. If so, filter characteristics are selected to cause the input noise whitening filter to operate to inject whitening noise into the received sequence.
Inventors:
Hoang Woo
Sean Simmons
Sean Simmons
Application Number:
JP2008014211A
Publication Date:
September 21, 2011
Filing Date:
January 24, 2008
Export Citation:
Assignee:
Research In Motion Limited
International Classes:
H04B1/10; H03H17/00; H03H17/02; H03H21/00; H04B7/005
Foreign References:
| WO2005041510A1 | ||||
| WO2005002241A1 | ||||
| WO2005048548A1 | ||||
| US20050250466 |
Attorney, Agent or Firm:
Takeshi Oshio