Title:
METHOD AND APPARATUS FOR INTERFERENCE CANCELLATION IN A RAKE RECEIVER
Document Type and Number:
WIPO Patent Application WO2000021208
Kind Code:
A3
Abstract:
Systems and methods for despreading received spread spectrum signals are described. Despreading can be performed using both channel estimates and impairment correlation estimates. Techniques for selecting delays of interest are also described, along with a despreading mechanism using a sliding correlator which saves power by operating only on delays of interest.
Inventors:
BOTTOMLEY GREGORY E
Application Number:
PCT/US1999/022248
Publication Date:
October 26, 2000
Filing Date:
September 24, 1999
Export Citation:
Assignee:
ERICSSON INC (US)
International Classes:
H04B1/10; H04B1/707; H04B1/7095; H04B1/7113; H04B1/7115; H04B1/712; H04B7/005; H04B7/02; H04L25/02; H04L25/03; (IPC1-7): H04B1/707
Domestic Patent References:
| WO1996006487A1 | 1996-02-29 |
Foreign References:
| US5677930A | 1997-10-14 | |||
| US5572552A | 1996-11-05 | |||
| US5680419A | 1997-10-21 | |||
| EP0690588A2 | 1996-01-03 | |||
| US5768306A | 1998-06-16 | |||
| EP0757450A2 | 1997-02-05 |
Other References:
BOTTOMLEY G E ET AL: "Optimizing the performance of limited complexity RAKE receivers", VTC '98. 48TH IEEE VEHICULAR TECHNOLOGY CONFERENCE. PATHWAY TO A GLOBAL WIRELESS REVOLUTION (CAT. NO.98CH36151), VTC '98. 48TH IEEE VEHICULAR TECHNOLOGY CONFERENCE. PATHWAY TO A GLOBAL WIRELESS REVOLUTION, OTTAWA, ONT., CANADA, 18-21 MAY 1998, ISBN 0-7803-4320-4, 1998, New York, NY, USA, IEEE, USA, pages 968 - 972 vol.2, XP002098104
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