Title:
内部及び外部ループを使用する周波数トラッキング
Document Type and Number:
Japanese Patent JP4563802
Kind Code:
B2
Abstract:
Techniques for inner/outer loop tracking that is stable and provides desirable loop convergence characteristics are disclosed. In one aspect, the contribution from any one inner loop to the tracking function of the outer loop is limited, to prohibit any one received signal component from dominating the outer loop. In another aspect, the rate of outer loop tracking variation is controlled to provide inner and outer loop stability. Various other aspects are also presented. These aspects have the benefit of providing stable inner and outer loop control, as well as efficient convergence and tracking by the various loops, resulting in reduced frequency error and improved communication performance.
Inventors:
Subramanya, Pervasana Sun
Lynn, Jeremy H
Lynn, Jeremy H
Application Number:
JP2004520109A
Publication Date:
October 13, 2010
Filing Date:
July 09, 2003
Export Citation:
Assignee:
QUALCOMM INCORPORATED
International Classes:
H04B1/707
Domestic Patent References:
| JP6125329A | ||||
| JP5244117A | ||||
| JP10200507A |
Foreign References:
| WO2002029978A1 | ||||
| WO2000065797A1 |
Attorney, Agent or Firm:
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto