Patent Number: 8,817,910

Title: Systems and methods for communicating using ASK or QAM with uneven symbol constellation

Abstract: Systems and methods of performing ASK or QAM modulation with uneven distance between symbols are provided. These are used to provide differing BER performances among bits sent from a transmitter to a receiver.

Inventors: Qu; Shouxing (Ottawa, CA), Xin; Yan (Kanata, CA), Dwyer; Johanna Lisa (Kanata, CA), Carpenter; Paul (St. Margarets, GB)

Assignee: Blackberry Limited

International Classification: H04L 27/36 (20060101)

Expiration Date: 8/26/12018