Patent · US Expired

System and method for antenna diversity using equal power joint maximal ratio combining

US7245881B2 · kind B2 · utility

8Cited by
82References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 15, 2004
Grant dateJul 17, 2007
Priority date
Expiry dateJun 17, 2024

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04W52/42
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

An equal gain composite beamforming technique which constrains that the power of the signal output by each antenna is the same, and is equal to the total power of the transmit signal divided by the number N of transmit antennas from which the signal is to be transmitted. By reducing output power requirements for each power amplifier, the silicon area of the power amplifiers are reduced by as much as N times (where N is equal to the number of transmit antennas) relative to a non-equal gain CBF.

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