Patent · US Active

Autonomous maximum power setting based on channel fingerprint

US8848561B2 · kind B2 · utility

5Cited by

0References

31Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Iana Siomina · Täby, SE
Muhammad Kazmi · Sundbyberg, SE
Gary Boudreau · Gatineau, CA

Key dates

Filing date	Dec 28, 2011
Grant date	Sep 30, 2014
Priority date	—
Expiry date	Aug 3, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04W52/244
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A home base station (HBS) (104, 801) performs radio channel measurements to detect one or more user equipments (UEs) (107) not served by the HBS which may be in a potentially interfering environment caused at least in part by the HBS. A database (812) of historical channel data (channel fingerprinting) of the HBS coverage area is used to predict the channel conditions and expected interference signal power seen by the detected UE(s). Based on a combination of the radio measurements (813) and historical channel data, the HBS can accurately and adaptively reduce its transmit power to a level that reduces or eliminates interference with the detected UE(s), while also not significantly degrading communication quality between other UEs served by the HBS.

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