SIDE INFORMATION TRANSMISSION METHOD AND DEVICE BASED ON PARTIAL TRANSMIT SEQUENCE TECHNOLOGY

摘要

Embodiments of the present application provide a side information transmission method and device based on partial transmit sequence technology. Data to be sent by a sending end comprises at least one first data sub-block and at least one second data sub-block. A first modulation signal corresponding to the at least one first data sub-block is obtained on the basis of a first phase rotation factor. A second modulation signal corresponding to the at least one second data sub-block is obtained on the basis of a second phase rotation factor. Side information is generated according to the first phase rotation factor and the second phase rotation factor. The first data sub-block is carried on a first sub-carrier and the side information is mapped onto a first carrier. A signal to be transmitted is obtained by superimposing the first modulation signal corresponding to the at least one first data sub-block and the second modulation signal corresponding to the at least one second data sub-block as well as a modulation signal corresponding to the side information. The technical solution provided in the present application can improve the BER performance of decoding the side information while ensuring the spectral efficiency of a system.