METHOD AND APPARATUS FOR MAPPING REFERENCE SIGNAL SEQUENCE, AND METHOD AND APPARATUS FOR DEMAPPING REFERENCE SIGNAL SEQUENCE

• Main Author: LIU, Fengwei
• Format: Patent
• Language: English; French; German
• Published: 28.12.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

Reference signal sequence mapping and demapping methods, and an apparatus are provided, to resolve a problem in a conventional technology that time-domain overheads of a reference signal of a single-carrier waveform are relatively large. In this application, a sending device may map a reference signal sequence to a modulation symbol set, to obtain a multiplexing set, where the multiplexing set occupies one single-carrier time domain symbol. Compared with a solution in which a reference signal sequence solely occupies one single-carrier time domain symbol, the solution in this application can reduce time-domain overheads of the reference signal. In addition, to correctly perform channel estimation or channel sounding for the reference signal, different reference signal sequences need to meet conditions such as orthogonality or conjugate orthogonality, and locations of the reference signal sequences in different multiplexing sets also need to meet corresponding conditions, and so on.