Method and apparatus for wireless baseband processing for realizing integrated sensing and communication

An apparatus for wireless baseband processing for realizing integrated sensing and communication (ISAC), including:

• an encoder, configured to encode original information bits to generate a data code stream, obtain an encoding mapping result on each antenna port, and transmit the encoding mapping result through a logical interface;
• a carrier modulator, configured to receive the encoding mapping result, modulate the encoding mapping result to a carrier, and obtain and transmit a discrete-time digital signal;
• a digital-to-analog converter, configured to convert the carrier modulation result from the discrete-time digital signal into a continuously changing analog signal, and then obtain a sensing-communication signal through orthogonal modulation;
• an up-conversion processor, configured to modulate the sensing-communication signal to a radio frequency end transmission frequency band to generate a transmission signal;
• an ISAC beam management component, configured to perform a beam management procedure, adjust a beam shape and direction by adjusting parameters of a basic unit of a multi-antenna array phase through a beamforming technology according to a beam established and maintained by the transmission signal, to obtain a sensing-communication waveform, wherein a base station transmits an ISAC signal from multiple antennas according to the sensing-communication waveform;
• a down-conversion processor, configured to demodulate the received ISAC signal into a baseband signal to obtain a down-conversion processing result;
• an analog-to-digital converter, configured to convert the down-conversion processing result from an analog domain waveform to a digital domain waveform to obtain an analog-to-digital conversion result;
• a carrier demodulator, configured to convert the digital domain waveform into a demodulation output signal in a symbol format through a Fourier transform to obtain a carrier demodulation result;
• a decoding mapping decoder, configured to receive the carrier demodulation result, process the obtained symbol format to generate a data code stream in a 0-1 bit format, and decode the data code stream to generate estimated bit information;
• and
• a sensing function component, configured to perform sensing signal processing on the analog-to-digital conversion result to obtain sensing data.

A computer device, comprising:

• a processor;
• and
• a memory storing a computer program executable by the processor, wherein the processor is configured to;
• design based on a wireless baseband processing procedure of a base station, add an integrated sensing and communication (ISAC) beam management module in a transmitter, and add a sensing function (SF) module to a receiver;
• send a wide sensing-communication transmission beam through the ISAC beam management module, and decode sensing information from a reflected sensing echo through the SF module, wherein the sensing information comprises a target location;
• narrow a beam, aim at the target location, and send a narrow sensing-communication transmission beam through the ISAC beam management module based on the sensing information;
• and
• design a manner for separating an uplink communication beam and echo data of a sensing-communication transmission beam received by the base station, wherein the sensing-communication transmission beam comprises the wide sensing-communication transmission beam and the narrow sensing-communication transmission beam, so that the base station separates communication data and sensing data from the uplink communication beam and the echo data.