Patent · US Active

Method, mobile station and base station for transmitting data in mobile communication system

US9893783B2 · kind B2 · utility

3Cited by

0References

22Claims

0Family size

Assignee

Nokia Solutions and Networks GmbH & Co. KG · DE

Inventors

Josef Eichinger · Neufinsing, DE
Volker Jungnickel · Berlin, DE
Egon Schulz · Birkenfeld, DE
Wolfgang Zirwas · Munich, DE

Key dates

Filing date	Oct 11, 2007
Grant date	Feb 13, 2018
Priority date	—
Expiry date	Aug 1, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04L5/0058
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

Data in a mobile communications system is transmitted on at least one channel between at least one base station with multiple antennas and at least one user equipment. A base station applies precoding to the data based on a set of predefined codebooks. A first tracking mode with a first codebook from the set of predefined codebooks is used for the precoding, and at least a second tracking mode with at least a second codebook from the set of predefined codebooks is used for the precoding. The base station switches between the first tracking mode and the second tracking mode depending on at least one condition of the channel.

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