(19) United States
(12) Patent Application Publication (io) Pub. No.: US 2002/0028675 Al
Schmutz et al. (43) Pub. Date: Mar. 7,2002
(54) METHOD AND APPARATUS FOR
BACKHAUL LINK DIAGNOSTIC IN A
WIRELESS REPEATER SYSTEM
(76) Inventors: Thomas R. Schmutz, Indialantic, FL (US); Michael A. Komara, Satellite Beach, FL (US)
ROBERT J. SACCO
Akerman, Senterfltt & Eidson, PA.
222 Lakeview Avenue - 4th Floor
P. O. Box 3188
West Palm Beach, FL 33402-3188 (US)
(21) Appl. No.: 09/736,031
(22) Filed: Dec. 13, 2000
Related U.S. Application Data
(63) Non-provisional ol provisional application No. 60/173,445, filed on Dec. 29, 1999.
(51) Int. CI.7 I HUB 7/15
(52) U.S. CI 455/424; 455/522; 455/11.1
The invention discloses a method and apparatus for diagnosing a backhaul communications link between a repeater station and a base transceiver station ol a wireless communication system. Adjacent and co-channel interference can severely degrade the performance ol the backhaul communication link. As a result, the conditions on the backhaul link channels can be continually monitored to ensure optimal performance ol the link.
Each RF channel on the backhaul communication link is individually diagnosed. A signal is then sent over the RF channel and the signal strength is measured along with any adjacent and co-channel interference. The measured statistics are then sent back to the base transceiver station.
In a further embodiment of the invention, the power level of a RF carrier signal on the backhaul communication link is measured and the carrier signal is then turned off. The power levels on the adjacent channels—above and below are then measured. Based on these measurements and other channel statistics, the power level of the RF carrier signal is accordingly adjusted.