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

  • US 20150139348A1
  • Filed: 01/30/2015
  • Published: 05/21/2015
  • Est. Priority Date: 07/30/2012
  • Status: Active Grant
First Claim
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1. A transmitting circuit comprising:

  • a digital interface circuit configured to;

    obtain, in a predetermined bandwidth, first data to be sent; and

    decompose 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; and

    modulate 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; and

    perform 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; and

    perform 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; and

    convert the first analog signal into a radio frequency signal so that the radio frequency signal is sent by an antenna.

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