Patent · US Active

Channel quality indicator design for multiple-user multiple-input and multiple-output in high-speed packet access systems

US8599777B2 · kind B2 · utility

9Cited by

0References

14Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Pavan Kumar Vitthaladevuni · San Diego, US
Haitong Sun · Cupertino, US
Danlu Zhang · San Diego, US
Vinay Chande · San Diego, US
Stefan Brueck · Nuremberg, DE
Josef J. Blanz · Munich, DE

Key dates

Filing date	Nov 15, 2010
Grant date	Dec 3, 2013
Priority date	—
Expiry date	Jan 20, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04L1/18
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method for providing multiple-user multiple-input and multiple-output in a high-speed packet access system is described. A channel quality indicator is received from a dual-stream-capable wireless communication device requesting a single-stream transmission at a first data rate. The first data rate is adjusted by an adaptive outer loop margin to obtain a second data rate. A data stream is transmitted to the wireless communication device using the second data rate. A positive-acknowledgement/negative-acknowledgement (ACK/NACK) is received from the wireless communication device. The adaptive outer loop margin is adjusted according to the received ACK/NACK.

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