Methods and devices for transmission/reception of data for hybrid carrier modulation mimo system

A hybrid single-carrier modulation and OFDM carrier modulation MIMO system, comprising a transmitter and a receiver, wherein the transmitter comprises:

• a single-carrier signal generator, used for generating single-carrier transmission sequences with sampling rates of X on transmission links of an MIMO transmission device, wherein the single-carrier transmission sequences comprise synchronous training fields, channel estimation training fields and SIG-A fields;
• an OFDM signal generator, used for generating OFDM carrier transmission sequences with sampling rates of Y on the transmission links of the MIMO transmission device, wherein the OFDM carrier transmission sequences comprise long training fields for estimating an equivalent channel for OFDM-MIMO transmission and data fields, and further comprise SIG-B fields between the long training fields and the data fields in a multiuser mode;
• a pulse shaping multiphase filter, used for carrying out upsampling and downsampling processing on single-carrier transmission symbol sequences to form single-carrier transmission sequences with sampling rates of Y;
• a digital-to-analog converter, used for carrying out digital-to-analog conversion on the single-carrier transmission sequences and the OFDM carrier transmission sequences;
• and
• a transmitter radio frequency module, used for transmitting analog signals after the digital-to-analog conversion;
• the receiver comprises:
• a receiver radio frequency module, used for receiving data transmitted by the transmitter and outputting the analog signals;
• an analog-to-digital converter, used for sampling the analog signals at the sampling rate of Y to obtain symbol sequences with sampling rates of Y;
• a matching multiphase filter, used for carrying out upsampling and downsampling processing on single-carrier sequences to obtain single-carrier reception sequences with sampling rates of X;
• a single-carrier signal demodulation module, used for carrying out channel estimation and demodulating the single-carrier reception sequences to obtain configuration information of SIG-A, and configuring the receiver according to the configuration information of the SIG-A;
• and
• an OFDM signal demodulation module, used for carrying out OFDM-MIMO channel estimation and demodulating OFDM reception sequences to obtain transmitted data.