Huawei Technologies Canada Co., Ltd.

Patrick Mitran

Ming Jian

Vahid Pourahmadi

Assem Shoukry Mohamed Hussein

Mohammad Sadegh Safari

Vincent Charles Gaudet

A method for adaptive coding and modulation. The method includes generating a set of mapping functions and transmitting a tset of transmit symbols where 1&#x2264;t&#x2264;T and T is a maximum number of symbol transmissions. Transmitting the tset of transmit symbols includes transmitting each transmit symbol in the tset of transmit symbols. Each transmit symbol is transmitted by a respective transmitter. Transmitting each transmit symbol includes generating a tset of mapped symbols, generating each transmit symbol from the tset of mapped symbols, and transmitting each transmit symbol. Generating the tset of mapped symbols includes applying a mapping functions subset of the set of mapping functions on a respective data vector. Each mapping function in the mapping functions subset depends on a respective mapped symbol in an rset of mapped symbols where 0&#x2264;r&#x2264;T.

Adaptive coding and modulation

Aspects of the present application provide methods and devices for using a combined QAM and APSK modulation scheme in a hybrid modulation form in order to benefit from advantages of each respective modulation scheme. The proposed hybrid modulation scheme is less sensitive to phase noise and has lower PAPR than QAM and has very similar performance as QAM with respect to AWGN.

Growing community of inventors

Waterloo, Canada

Patrick Mitran