Invention Grant
- Patent Title: CDMA receiving apparatus and CDMA receiving method
- Patent Title (中): CDMA接收装置和CDMA接收方式
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Application No.: US12239974Application Date: 2008-09-29
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Publication No.: US08265123B2Publication Date: 2012-09-11
- Inventor: Akira Ito , Masahiko Shimizu
- Applicant: Akira Ito , Masahiko Shimizu
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Myers Wolin LLC
- Main IPC: H04B1/00
- IPC: H04B1/00

Abstract:
A CDMA receiving apparatus includes a path searcher which outputs path timing that corresponds to sample timing where a correlation value between a received data sequence and a reference code sequence reaches a peak, and outputs the correlation value calculated at a sample timing adjacent to the path timing as an adjacent timing correlation value; an interpolation adjuster; and a despreader which despreads an output of the interpolation adjuster at the path timing, wherein the interpolation adjuster includes an interpolator for generating an interpolating data sequence which is a data sequence displaced in time by a specified fraction of one sample period with respect to the received data sequence, and outputs the received data sequence or the interpolating data sequence by switching therebetween based on a result of a comparison between the correlation value calculated at the path timing and the adjacent timing correlation value.
Public/Granted literature
- US20090022212A1 CDMA RECEIVING APPARATUS AND CDMA RECEIVING METHOD Public/Granted day:2009-01-22
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