Invention Application
- Patent Title: Methods and apparatus to perform frequency-domain equalization for channels with large delay-spreads
- Patent Title (中): 对具有较大延迟传播的信道执行频域均衡的方法和装置
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Application No.: US11518559Application Date: 2006-09-08
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Publication No.: US20070071071A1Publication Date: 2007-03-29
- Inventor: Yuan Li , Toshio Nagata
- Applicant: Yuan Li , Toshio Nagata
- Main IPC: H04B1/00
- IPC: H04B1/00 ; H04L27/28

Abstract:
Methods and apparatus to perform frequency-domain equalization in high-speed downlink packet access (HSDPA) receivers for wireless channels with large delay-spreads are disclosed. An example method comprises computing a first frequency-domain equalizer (FDE) coefficient for a first set of multipaths, computing a second FDE coefficient for a second set of multipaths, computing a first equalized signal by equalizing a received code division multiple access (CDMA) signal with the first FDE coefficient, computing a second equalized signal by equalizing the received CDMA signal with the second FDE coefficient, delaying the first equalized signal by a delay difference between the first and the second sets, and combining the delayed first equalized signal and the second equalized signal.
Public/Granted literature
- US07936810B2 Delayed combining of frequency-domain equalized wireless channels with large delay-spreads Public/Granted day:2011-05-03
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