Patent · US Active

Base station and method for improving coverage in a wireless communication system using antenna beam-jitter and CQI correction

US8200286B2 · kind B2 · utility

12Cited by

1References

24Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Karl Molnar · Clifton Park, US
Bo Hagerman · Stockholm, SE

Key dates

Filing date	Oct 31, 2008
Grant date	Jun 12, 2012
Priority date	—
Expiry date	Dec 18, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04W16/28
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A base station and method are described herein that improves the coverage in a fixed-beam wireless communication system by using antenna beam-jitter and Channel Quality Information (CQI) correction. In one embodiment, the method includes the steps of: (a) modifying a beam by introducing a beam-jitter in a beam-forming pattern; (b) receiving an estimated channel quality information, CQI, from a user terminal; (c) accounting for effects of the beam-jitter on the estimated CQI to obtain a jitter-adjusted CQI estimate; (d) and using the jitter-adjusted CQI estimate during user scheduling for a future transmission to the user terminal.

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