Patent · US Active

Beam forming using an antenna arrangement

US9960828B2 · kind B2 · utility

10Cited by

0References

24Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Sven Petersson · Svenstavik, SE
Fredrik Athley · Lindome, SE

Key dates

Filing date	May 8, 2014
Grant date	May 1, 2018
Priority date	—
Expiry date	Mar 21, 2035

Classification

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

Abstract

There is provided beam forming using an antenna array. The antenna array is configured to transmit across an angular sector. The angular sector is divided into at least two sub-sectors by respective port weights being applied to respective physical antenna ports of the antenna array. A respective set of virtual antenna ports is determined for each sub-sector. A first set of reference signals for acquiring channel state information on the set of virtual antenna ports is alternatingly transmitted in each one of the at least two sub-sectors.

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