Patent · US Active

Method and system for multi-carrier time division multiplexing modulation/demodulation

US10541846B2 · kind B2 · utility

1Cited by

2References

15Claims

0Family size

Assignee

Chongqing University Of Posts And Telecommunications · CN

Inventors

Guangyu Wang · Munich, DE
Qianbin Chen · Chongqing, CN
Kai Shao · Hsinchu, TW
Ling Zhuang · Chongqing, CN

Key dates

Filing date	Mar 31, 2015
Grant date	Jan 21, 2020
Priority date	—
Expiry date	Apr 14, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2025/0342
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

The present disclosure provides a multi-carrier time-division multiplexing (MC-TDMA) modulation and demodulation method and system. Before multi-carrier modulation is performed on an input symbol, an interleaving allocation and an FFT may be performed, a time domain symbol may be transformed into a frequency domain symbol signal to perform a MDFT treatment. A sending end may adopt an analyzing filter bank structure, and pre-filtering and an IFFT may be performed on a signal successively. A pre-filter may be positioned between an NM point FFT and an M point IFFT, a PAPR value of the system may be reduced using the symmetry of a coefficient of a filter, and a frequency domain symbol signal may be allocated to different sub-bands for multi-carrier modulation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.