05265119 is referenced by 342 patents and cites 20 patents.

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.

Title
Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system
Application Number
433031
Publication Number
5265119
Application Date
May 17, 1991
Publication Date
November 23, 1993
Inventor
Robert D Blakeney II
San Diego
CA, US
Lindsay A Weaver Jr
San Diego
CA, US
Charles E Wheatley III
Del Mar
CA, US
Roberto Padovani
San Diego
CA, US
Klein S Gilhousen
San Diego
CA, US
Agent
Russell B Miller
Assignee
Qualcomm Incorporated
CA, US
IPC
H04B 7/204
H04J 13/00
H04L 27/30
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