Multi-carrier hybrid transmission method

Abstract

The embodiment of the invention provides a multi-carrier hybrid transmission method. The method comprises the steps of obtaining to-be-transmitted data, and dividing the to-be-transmitted data into atleast one sending bit group according to a scene type; modulating the sending bit group into a to-be-transmitted signal through a corresponding modulation module; wherein the module type and the subcarrier capacity of the modulation module are obtained according to the corresponding sending bit group; up-converting to a corresponding carrier frequency band to obtain a grouped signal; wherein thebandwidth of each carrier frequency band is obtained according to the corresponding subcarrier capacity, and the carrier frequency bands are not overlapped with each other; the receiving end performsdown-conversion on the received grouping signal to obtain a corresponding to-be-transmitted signal; the to-be-transmitted signal is demodulated into a sending bit group through a corresponding demodulation module; according to the embodiment of the invention, the bit groups are sent to different scenes, and the module types and the sub-carrier capacities of the corresponding modulation modules areobtained according to the scene types and the data volumes, so that multi-carrier transmission of various scene types can be efficiently realized, and the transmission performance of the system is improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of wireless communication, and in particular to a multi-carrier hybrid transmission method. Background technique [0002] The OFDM technology based on IFFT / FFT has been widely used in 4G LTE, and it is a mature multi-carrier transmission technology with high spectrum efficiency. The windowed OFDM technology is also widely used in many types of new digital transmission systems such as Digital Video Broadcasting (DVB) and Wireless Local Area Networks (WLAN). The filter OFDM technology project has begun to apply generalized frequency division multiplexing (Generalized Frequency Division Multiple-plex, GFDM), universal filter multi-carrier (Universal Filtered Multi-Carrier, UFMC), filter bank multi-carrier (Filter Bank Multi-Carrier, FBMC) and other technologies. [0003] Since the orthogonal modulation and demodulation of each sub-channel in OFDM is realized by using Inverse Fast Fou...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a multi-carrier mixed transmission method, which is used to solve the needs of transmission resources for various services and transmission environments in the 5G system that cannot be solved in the prior art, so as to meet the requirements of 5G and its evolution system for various application scenarios. need

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