DR. SCOTT D WHITE, D.C.
Chiropractic at Country Club Dr, Mesa, AZ

License number

Arizona 4300

Personal information

See more information about SCOTT D WHITE at radaris.com

Name

Address

Phone

Scott White

5100 N Miller Rd UNIT 42, Scottsdale, AZ 85250

Professional information

Doppler Correction And Path Loss Compensation For Airborne Cellular System

US Patent:

6675013, Jan 6, 2004

Filed:

Jun 26, 2000

Appl. No.:

09/605144

Inventors:

Jonathan H. Gross - Gilbert AZ
Scott C. White - Mesa AZ
Duke E. Hanson - Queen Creek AZ

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04Q 720

US Classification:

455431, 455 6713, 455 121, 455 111, 455 131

Abstract:

The present invention corrects for Doppler shift in both forward and reverse links in a cellular communications system including an airborne repeater. A reverse link pilot reference signal in a band similar to a communications signal band is received at a reverse link processor, and the Doppler shift in the reverse feeder link is corrected based on the reverse link pilot reference signal. The Doppler shift in the forward feeder link is also corrected based on the reverse link pilot reference signal prior to the forward feeder link being affected by the Doppler shift. The present invention also compensates for signal strength variations due to changing flight pattern positions of the repeater. Pre-compensation for forward feeder link path losses due to movement of the airplane is performed to cause communications signals transmitted to and from the cellular communications system repeater to have identical strength before the signals are transmitted to the system user cell phones within the area of coverage.