A method and system for error checking in a wireless communication are provided. The method includes: receiving a payload; determining a final decoding result of the payload, the final decoding result indicating a start state and an end state; determining whether the end state is identical to the start state based on a state circularity check; and determining to discard the final decoding result based on whether the end state is identical to the start state.

A transceiving system using a joined modulation alphabet A having a size M the symbols of which are distributed on a plurality N of orthogonal dimensions, the symbols carried by a dimension belonging to a linear sub-alphabet A.sub.n having a size P, with M=NP. The transmitter performs a turbocoding of a block of information bits, the code words provided by the turbocoder being mapped to symbols of the joined modulation alphabet before modulating the signal to be transmitted. The receiver performs turbodecoding from the projection of the symbols received on the orthogonal dimensions of the alphabet.

Embodiments of the present disclosure provide a data transmission method and device. The method includes: determining, by a transmitting end, a channel coding scheme for to-be-transmitted data according to at least one of a size of a transport block of the to-be-transmitted data, a numerology used for the to-be-transmitted data and a service type of the to-be-transmitted data; performing, by the transmitting end, channel coding for the to-be-transmitted data by using the channel coding scheme for the to-be-transmitted data; and transmitting, by the transmitting end, the to-be-transmitted data that is performed with the channel coding to a receiving end. The embodiments of the present disclosure can select an appropriate channel coding scheme for the to-be-transmitted data.

A transceiving system using a joined modulation alphabet A having a size M the symbols of which are distributed on a plurality N of orthogonal dimensions, the symbols carried by a dimension belonging to a linear sub-alphabet A.sub.n having a size P, with M=NP. The transmitter performs a turbocoding of a block of information bits, the code words provided by the turbocoder being mapped to symbols of the joined modulation alphabet before modulating the signal to be transmitted. The receiver performs turbodecoding from the projection of the symbols received on the orthogonal dimensions of the alphabet.