Pulse or digital communications – Repeaters – Testing
Patent
1991-05-17
1993-11-23
Gregory, Bernarr E.
Pulse or digital communications
Repeaters
Testing
370 18, 379 59, 455 331, 455 383, 455 541, 455 69, 380 34, H04L 2730, H04J 1300, H04B 7204
Patent
active
052651193
ABSTRACT:
A power control system for a cellular mobile telephone system in which system users communicate information signals between one another via at least one cell site using code division multiple access spread spectrum communication signals. The power control system controls transmission signal power for each cellular mobile telephone in the cellular mobile telephone system wherein each cellular mobile telephone has an antenna, transmitter and receiver and each cell-site also has an antenna, transmitter and receiver. Cell-site transmitted signal power is measured as received at the mobile unit. Transmitter power is adjusted at the mobile unit in an opposite manner with respect to increases and decreases in received signal power. A power control feedback scheme may also be utilized. At the cell-site communicating with the mobile unit, the mobile unit transmitted power is measured as received at the cell-site. A command signal is generated at the cell-site and transmitted to the mobile unit for further adjusting mobile unit transmitter power corresponding to deviations in the cell site received signal power. The feedback scheme is used to further adjust the mobile unit transmitter power so that mobile unit transmitted signals arrive at the cell-site at a desired power level. In a cell diversity situation, the mobile units transmitter power is adjusted to prevent unnecessary increases in mobile unit transmitter power level.
REFERENCES:
patent: 3925782 (1975-12-01), Anderl et al.
patent: 4112257 (1978-09-01), Frost
patent: 4123718 (1978-10-01), Lampert et al.
patent: 4193031 (1980-03-01), Cooper
patent: 4222115 (1980-09-01), Cooper et al.
patent: 4225976 (1980-09-01), Osborne et al.
patent: 4495648 (1985-01-01), Giger
patent: 4580262 (1986-04-01), Naylor et al.
patent: 4613990 (1986-09-01), Halpern
patent: 4641322 (1987-02-01), Hasegawa
patent: 4672658 (1987-06-01), Kavehrad et al.
patent: 4765753 (1988-08-01), Schmidt
patent: 4777653 (1988-10-01), Bonnerot et al.
patent: 4811421 (1989-03-01), Havel et al.
patent: 4868795 (1989-09-01), McDavid et al.
patent: 4870698 (1989-09-01), Katsuyama et al.
patent: 4901307 (1990-02-01), Gilhousen et al.
patent: 5056109 (1991-10-01), Gilhousen et al.
patent: 5093840 (1992-03-01), Schilling
patent: 5107487 (1992-04-01), Vilmur et al.
Blakeney, II Robert D.
Gilhousen Klein S.
Padovani Roberto
Weaver, Jr. Lindsay A.
Wheatley III Charles E.
Gregory Bernarr E.
Miller Russell B.
Qualcomm Incorporated
LandOfFree
Method and apparatus for controlling transmission power in a CDM 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 controlling transmission power in a CDM, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for controlling transmission power in a CDM will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1855603