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Title:
A LIMITED IMPULSE RESPONSE DIGITAL FILTER
Document Type and Number:
WIPO Patent Application WO/2003/049316
Kind Code:
A1
Abstract:
The present invention discloses a limited impulse response digital filter for wireless mobile communication system. The limited impulse response digital filter provides very good bandlimited property and preferable robustness for sampling time error. Employing the limited impulse response digital filter as baseband filter in mobile communication system reduces wave deformation of digital baseband signal modulated in lower dimensional such as BPSK, QPSK/DQPSK, GMSK, also reduces wave deformation of digital baseband signal modulated in higher dimensional such as 8PSK, 16PSK, 32PSK, 16QAM. Therefore mobile communication systems especially high speed mobile communication systems have high efficiency of frequency spectrum and system capacity, thereby establish the base of wireless digital telecommunication system which provides high capacity and high speed data transmission service.

Inventors:
ZOU YONGZHONG (CN)
SUN WEIJIUN (CN)
ZHANG YONGSHENG (CN)
Application Number:
PCT/CN2001/001607
Publication Date:
June 12, 2003
Filing Date:
December 06, 2001
Export Citation:
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Assignee:
LINKAIR COMM INC (US)
ZOU YONGZHONG (CN)
SUN WEIJIUN (CN)
ZHANG YONGSHENG (CN)
International Classes:
H03H17/06; (IPC1-7): H04B7/00; H03H17/00
Domestic Patent References:
WO1996026573A11996-08-29
Foreign References:
JP2000269785A2000-09-29
EP0284175A21988-09-28
EP0782259A21997-07-02
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENT LTD. (NO.40 North Sanhuanzhonglu Road Beijing 8, CN)
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