Transmitting Circuit, Transceiver, Communication System, and Method for Transmitting Data

摘要

A transmitting circuit, a transceiver, a communication system, and a method for transmitting data. The transmitting circuit includes a digital interface circuit configured to obtain, in a predetermined bandwidth, data to be sent, and decompose the data into N parallel sub digital signal flows; a digital modulation circuit configured to modulate the N sub digital signal flows to obtain N modulated signals; a frequency relocation circuit configured to perform frequency relocation on the N modulated signals; a synthesizer configured to modulate M modulated signals of the N modulated signals that have undergone frequency relocation into a bandwidth signal; a digital to analog converter configured to receive the bandwidth signal, and perform digital to analog conversion on the bandwidth signal to obtain an analog signal; an up-conversion circuit configured to receive the analog signal, and convert the analog signal into a radio frequency signal.

主权项

1. A transmitting circuit comprising:
a digital interface circuit configured to:
obtain, in a predetermined bandwidth, first data to be sent; anddecompose the first data into N parallel first sub digital signal flows, wherein a bandwidth occupied by each first sub digital signal flow of the N first sub digital signal flows is smaller than the predetermined bandwidth, and wherein N is a positive integer greater than 1; a digital modulation circuit configured to:
receive the N first sub digital signal flows; andmodulate the N first sub digital signal flows to obtain N first modulated signals; a first frequency relocation circuit configured to:
receive the N first modulated signals; andperform frequency relocation on the N first modulated signals so that there is no frequency band gap between adjacent first modulated signals of the N first modulated signals that have undergone frequency relocation; a first synthesizer configured to synthesize M first modulated signals of the N first modulated signals that have undergone frequency relocation into a first bandwidth signal, wherein M is a positive integer smaller than or equal to N; a first digital to analog converter configured to:
receive the first bandwidth signal; andperform digital to analog conversion on the first bandwidth signal to obtain a first analog signal; and a first up-conversion circuit configured to:
receive the first analog signal; andconvert the first analog signal into a radio frequency signal so that the radio frequency signal is sent by an antenna.