Variable rate signal transmission in a spread spectrum communication system using coset coding

The invention claims in CDMA spread spectrum communication system a variable speed data and orthogonal on the communication channel message sending the improved system and method for synchronizing. First is divided into the intelligent signal first and second sub-signal, providing connected to the first and second coset network coding. The first and sub-signal first coset code combination, the second sub-signal orthogonal and a second coset code combination of first coset code. A flush with functional signal modulation composite coset coded signal, providing a first control signal. The pseudo-random noise signal wherein the first control signal with a predetermined PN code's synchronization pseudo-random noise and orthogonal, a voltage to a receiver is I-SHAPED or the LEFT communication channel uploaded.