Telecommunications – Carrier wave repeater or relay system – Portable or mobile repeater
Patent
1996-04-04
1998-01-13
Vo, Nguyen T.
Telecommunications
Carrier wave repeater or relay system
Portable or mobile repeater
455 522, 455 69, H04B 7185
Patent
active
057089663
ABSTRACT:
A communications system includes first and second ground stations and a spacecraft repeater. Data signals are transmitted between ground stations by way of the repeater, together with spread-spectrum ranging signals. Uplink rain attenuation is compensated for changing the transmitted power at the ground stations. The amount of downlink attenuation is determined by measuring the total carrier-to-noise ratio in three paths, station 1 to station 2, station 2 to station 1, and station 1 to station 1. With these three values of total attenuation, the two downlink attenuations and the number of active signals traversing the repeater can be determined. The downlink attenuations are converted to uplink attenuations, and used to control the transmitters.
REFERENCES:
patent: 4910792 (1990-03-01), Takahata et al.
patent: 4941199 (1990-07-01), Saam
patent: 5060292 (1991-10-01), Ayukawa et al.
Al-Dhahir Naofal Mohammed Wassel
Hershey John Erik
Saulnier Gary Jude
Krauss G. H.
Lockheed Martin Corporation
Meise W. H.
Vo Nguyen T.
Young S. A.
LandOfFree
Method and apparatus for performing power control using the wide does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for performing power control using the wide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for performing power control using the wide will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-336081