Patent · US Active

Method and system for integrated link adaptation and power control to improve error and throughput performance in wireless packet networks

US8432863B2 · kind B2 · utility

3Cited by

8References

10Claims

0Family size

Assignee

AT&T Intellectual Property I, L.P. · US

Inventors

Justin Che-I Chuang · Holmdel, US
Kin K. Leung · Edison, US
Li Wang · Hangzhou City, CN

Key dates

Filing date	Feb 28, 2011
Grant date	Apr 30, 2013
Priority date	—
Expiry date	Nov 1, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04W28/18
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

The invention provides a system that implements an algorithm for integrated link adaptation and power control to achieve specified error rates and to improve an overall throughput for real-time applications in wireless packet networks. The system initially divides wireless terminals into groups according to their signal path gains. Afterwards, the system can periodically adapt transmissions (i.e., link adaptations) based on the required error rates, actual error statistics and average transmission power for each wireless terminal group. Furthermore, transmission power can be adjusted by an enhanced Kalman-filter method to ensure successful reception.

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