Title:
A METHOD OF CANCELING INTERFERENCE BASED ON SMART ANTENNA
Document Type and Number:
WIPO Patent Application WO/2001/013466
Kind Code:
A1
Abstract:
This invention relates to a method of canceling interference. A mobile communication system using a smart antenna can resolve various multipath propagation interference with the method. The method includes steps: performimg beam-patterning on digital signal output from the receiver based on the smart antenna, obtaining a group of digital signals NR¿K? (m); canceling mainpath signals, which contain in NR¿K? (m), from other users, obtaining another group of digital signals NS¿K? (m) containing only desired signals and all interference; searching NS¿K? (m) to find all multipath interference signals from other user; canceling other multipath interference signals; superposing mainpath signals and individual multipath signal, obtaining digital signals that the interference has been canceled.
Inventors:
LI FENG (CN)
LI SHIHE (CN)
LI SHIHE (CN)
Application Number:
PCT/CN2000/000170
Publication Date:
February 22, 2001
Filing Date:
June 22, 2000
Export Citation:
Assignee:
CHINA ACADEMY OF TELECOMM TECH (CN)
LI FENG (CN)
LI SHIHE (CN)
LI FENG (CN)
LI SHIHE (CN)
International Classes:
H04B1/7113; H01Q3/26; H01Q25/00; H04B1/10; H04B1/7103; H04B1/711; H04B7/26; H04J13/00; H04W16/28; (IPC1-7): H01Q25/00
Domestic Patent References:
| WO1998038805A2 | 1998-09-03 |
Foreign References:
| CN1220562A | 1999-06-23 | |||
| GB2281011A | 1995-02-15 | |||
| EP0647982A2 | 1995-04-12 | |||
| CN1053313C | 2000-06-07 |
Other References:
See also references of EP 1220355A4
Attorney, Agent or Firm:
BEIJING SANYOU PATENT AGENCY CO., LTD. (Beijing 8, CN)
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