Patent · US Expired

Method and apparatus for providing downlink power control in radio communication systems employing virtual cells

US6735451B1 · kind B1 · utility

11Cited by

6References

15Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Anders Järleholm · Sollentuna, SE
Johan Jansson · Säter, SE
Tomas Stolt · Stockholm, SE

Key dates

Filing date	Nov 9, 2000
Grant date	May 11, 2004
Priority date	—
Expiry date	May 12, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH04W52/52
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Methods and base stations for controlling downlink power, especially in systems employing virtual cells, are described. By providing attenuators in each transmit signal processing chain, e.g., after upconverting to intermediate frequencies, downlink power control can be more finely tuned to different antenna elements.

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