Patent · US Active

Device and method for HSPA WCDMA uplink pilots

US9553641B2 · kind B2 · utility

1Cited by

0References

21Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Niklas Johansson · Uppsala, SE
Johan Bergman · Stockholm, SE
Bo Göransson · Sollentuna, SE
Johan Hultell · Solna, SE
Erik Larsson · Linköping, SE
Fredrik Ovesjö · Stuvsta-Snättringe, SE

Key dates

Filing date	Aug 18, 2011
Grant date	Jan 24, 2017
Priority date	—
Expiry date	Oct 13, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04B7/0684
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A UE, for an HSPA WCDMA system, equipped with a first and a second transmit antenna, and arranged to use one or more sets of pre-coding weights for transmission. The UE is arranged to receive instructions from a NodeB on the set or sets of pre-coding weights to be used, and to transmit a first and a second pilot signal, and to use a first set of pre-coding weights for the first pilot signal and a second set of pre-coding weights for the second pilot signal, where the first set of pre-coding weights is the same as the UE uses for transmitting a first data stream, and to use different spreading codes for the first data stream and for the first pilot signal.

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