Patent · US Active

Uplink transmit diversity and precoding

US10205618B2 · kind B2 · utility

7Cited by

0References

28Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Renqiu Wang · San Diego, US
Hao Xu · Cupertino, US
Jing Jiang · San Diego, US
Yi Huang · San Diego, US
Wei Zeng · Saratoga, US
Wanshi Chen · San Diego, US
Tingfang Ji · San Diego, US

Key dates

Filing date	Dec 21, 2017
Grant date	Feb 12, 2019
Priority date	—
Expiry date	Dec 21, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH04L27/2636
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A configurable new radio (NR) uplink (UL) transmission may use transmit diversity. A user equipment (UE) may identify an uplink transmission of at least one stream as using one of cyclic prefix orthogonal frequency division multiplexing or discrete Fourier transform spread orthogonal frequency division multiplexing. The UE may apply a precoding matrix to the at least one identified stream. The precoding matrix changes over time. The precoding matrix may change based on closed loop feedback, a precoding cycling pattern, and/or a code division multiplexing group. The UE may transmit the at least one identified stream from multiple antennas according to the applied precoding matrix.

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