The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 13, 2015

Filed:

May. 29, 2013
Applicant:

Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;

Inventor:

Naveen Jacob, Kerala, IN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/00 (2006.01); H04B 1/10 (2006.01); H04L 25/02 (2006.01); H04B 15/00 (2006.01);
U.S. Cl.
CPC ...
H04B 1/10 (2013.01); H04L 25/0204 (2013.01); H04B 1/1027 (2013.01); H04B 15/00 (2013.01);
Abstract

A desired signal and interfering signal are transmitted in the same timeslot and on the same frequency using an Adaptive Quadrature Phase Shift Keying (AQPSK) modulated carrier. When the Subchannel Power Imbalance Ratio (SCPIR) for the AQPSK modulated carrier is large and favors the interfering signal, SIC is used to cancel the interfering signal from the received signal. Following interference cancellation, the desired signal is demodulated using two different estimates of the channel and the demodulated soft bits from demodulated soft bits from each demodulation process are combined to obtain a combined estimate.


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