Reed-Muller coding in long term evolution
Fatang Chen · Journal of Chongqing University of Posts and Telecommunications · 2010
In 3GPP LTE(long term evolution) physical layer protocol,Both CQI(channel quality indicator) and HARQ-ACK(hybrid automatic repeat-request acknowledgement) adopted a method called super code based on Reed-Muller.It is similar to the encoding of TFCI(transport format combination indicator) in TD-SCDMA physical layer protocol.But the coding matrix used more complex interleaver technology and increased more masks in 3GPP LTE.It made receiver's decoding difficult.According to the characteristics of coding matrix,this paper used FHT(fast Hadamard transformation) and gave an effective decoding algorithm of Reed-Muller.Simulation results show the effectiveness of the algorithm,which has been applied to LTE-TDD wireless integrated test instrument.