Patent ID: 7606318

Claim:
A space-time encoding and decoding method for a frequency selective fading channel, comprising: A. taking, by an encoder, two independent data fields of a time slot in input data as a processing unit with space-time orthogonal encoding method, encoding them and generating two data vectors, thereby forming two diversity signals, and transmitting said two diversity signals simultaneously with each through a corresponding diversity antenna; B. receiving, by a terminal, said two diversity signals, and neglecting mutual interference between said two diversity signals caused by non-orthogonality; C. performing, by said terminal, joint detection that only takes into account the effect to said two diversity signals from multipath interference and multi-user interference, thereby obtaining a decoding result; and D. implementing interference cancellation based on a result of said joint detection to remove interference between said two diversity signals, and then returning to step C to implement iteration for decoding processing.