WO2011037931A2

3G

Title

INTERFERENCE CANCELLATION FOR WIRELESS COMMUNICATIONS

Application Number:

WO2010US49690

Publication Date:

31-03-2011

Current Assignee:

QUALCOMM INC , JOU YU-CHEUN , ATTAR RASHID AHMED AKBAR , BLACK PETER J , MA JUN , LOTT CHRISTOPHER G

Family ID:

43618307

Application Date:

21-09-2010

Publication Country:

US

View on Espacenet

Priority Date:

22-09-2009

Declaring Company:

QUALCOMM INC

Abstract  Abstract

Techniques for improving the capacity of a wireless communications system using interference cancellation (IC). In an early decoding and IC aspect a frame transmitted from a user to a base station may be decoded prior to the entire frame being received by the base station. The remaining portion of the frame may then be re-constructed at the base station prior to its reception and cancelled from the receive signal to reduce the interference to frames received from other users. In a power control aspect for early decoding and IC the power control target level at a local base station may be adjusted in response to successfully early decoding a frame without affecting the overall outer loop power control operation. Further aspects include late decoding techniques for utilizing the IC of other users signals to improve the probability of decoding a given users frames as well as techniques for traffic channel demodulation using channel re-estimation.

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