Title:
METHOD AND APPARATUS FOR REDUCING INTERFERENCE WITHIN A COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO2005013498
Kind Code:
A3
Abstract:
A communication system (100) is designed that reduces co-channel interference when heterogeneous users (101-104) are sharing spectrum. The system design enables a plurality of pairs of users to communicate their channel utilization time periods by using the durations and start or stop times of certain transmissions to signal the start times and durations of later transmissions. Other system users using possibly different communications protocols and different modulation technologies can measure the durations of received transmissions and to infer channel usage based on these durations.
Inventors:
D AMICO THOMAS V (US)
PETERSON ROGER L
PETERSON ROGER L
Application Number:
PCT/US2004/025731
Publication Date:
April 14, 2005
Filing Date:
July 27, 2004
Export Citation:
Assignee:
MOTOROLA INC (US)
D AMICO THOMAS V (US)
PETERSON ROGER L
D AMICO THOMAS V (US)
PETERSON ROGER L
International Classes:
H04L12/28; H04L12/56; H04W16/14; H04W24/00; H04W74/04; (IPC1-7): H03D1/04; H03D1/06; H03K6/04
Foreign References:
| US20030083095A1 | 2003-05-01 | |||
| US20030003905A1 | 2003-01-02 | |||
| US6108314A | 2000-08-22 |
Other References:
See also references of EP 1652291A4
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