High-speed efficient WCDMA base-band filter |
Title： |
| High-speed efficient WCDMA base-band filter |
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Application Number： |
01136711 |
Application Date： |
2001/10/22 |
Announcement Date： |
2002/05/01 |
Pub. Date： |
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Publication Number： |
1347215 |
Announcement Number： |
1142646 |
Grant Date： |
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Granted Pub. Date： |
2004-3-17 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H03H 17/02, H04B 7/26, H04J 13/00, H04L 25/03 |
Applicant(s)： |
Inst of Telecommunication Transmission, Ministry of Information Industry |
Inventor(s)： |
Li Gang, Xu Xibin, Zhao Ming |
Key Words： |
High-speed efficient, WCDMA, base-band filter |
Abstract： |
A 31-class high-speed efficiency FIR filter for the base-band transmitter of 3G mobile communication system is disclosed. An interpolation method is used to increase the speed of shaping filter from 2Xchip speed to 8 or more X chip speed. Its output is quantized by quantizer to reduce in-band noise. Two multipliers for odd coefficient and even coefficient are used. FPGA design is used for implementing said base-band filter with only 80000 equivalent gates. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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