Patent · US Expired

Radiotelephone transmission power control

US4613990A · kind A · utility

308Cited by
8References
11Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 25, 1984
Grant dateSep 23, 1986
Priority date
Expiry dateJun 25, 2004

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04W52/40
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

Power levels of first and second stations (10, 11) in a cellular radiotelephone system are dynamically adjusted from only one (10) of them. The second station receives signals from the first and, on the basis of the level of those signals, first adjusts its own transmitter power level to be within a predetermined range and then directs the adjustment of the power level of the first station to be within a predetermined range. Parameters used in processing call handoffs are also adjusted to correspond to the power level adjustments to prevent false handoffs due to the power level changes.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.