Title:
レイク受信機における相関タイミングを選択する装置及び方法
Document Type and Number:
Japanese Patent JP4559002
Kind Code:
B2
Abstract:
Correlation times for a RAKE receiver are determined from time differentials between multipath components of a received signal based on correlation metrics, preferably signal strength measurements, associated with the multipath components. According to various embodiments of the present invention, selection strategies are employed in which "desired signal collecting" and "interference collecting" correlation times may be selected using average optimal (AO) or instantaneous optimal (IO) selection criteria. These criteria may include, for example, thresholds for signal strengths associated with multipath components of a signal at the correlation times, where the signal strengths may include absolute or relative measures of signal power or signal to noise ratio. According to alternative embodiments, correlation times are selected using an inverse filter of an estimated channel response. Related apparatus is also described.
Inventors:
Otson, Tony
One, E-pin, Eric
Bottomley, Gregory, Edward
One, E-pin, Eric
Bottomley, Gregory, Edward
Application Number:
JP2001531220A
Publication Date:
October 06, 2010
Filing Date:
August 24, 2000
Export Citation:
Assignee:
ERICSSON INC.
International Classes:
H04B1/709; H04B1/712; H04B7/26; H04W56/00; H04W88/02; H04B1/7117
Domestic Patent References:
| JP9008776A |
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
Youhei Kawabata
Kato Takushi
Yasuhiro Sakata
Kuniaki Shimizu
Hayashi Zouzo
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
Youhei Kawabata
Kato Takushi
Yasuhiro Sakata
Kuniaki Shimizu
Hayashi Zouzo