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Method and device for adjusting carrier frequency of multiple-input multiple output microwave device

  • US 9,392,602 B2
  • Filed: 12/26/2014
  • Issued: 07/12/2016
  • Est. Priority Date: 06/30/2012
  • Status: Active Grant
First Claim
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1. A method for adjusting a carrier frequency of a multiple-input multiple-output microwave device, comprising:

  • obtaining, by an indoor unit (IDU), a frequency of a radio frequency-reference crystal oscillator and a first frequency multiplication factor of each outdoor unit (ODU), wherein the first frequency multiplication factor is a ratio of a transmit frequency design value of a remote radio frequency unit corresponding to each ODU to the frequency of the radio frequency-reference crystal oscillator of the ODU;

    selecting, by the IDU, one of the frequencies of the radio frequency-reference crystal oscillators as a reference frequency, wherein an ODU corresponding to the reference frequency is a reference ODU; and

    adjusting, by the IDU, a carrier frequency of the multiple-input multiple-output microwave device according to the first frequency multiplication factor and a radio frequency offset between the reference frequency and the frequency of the radio frequency-reference crystal oscillator of each of the other ODUs, wherein the other ODUs refer to all the ODUs except the reference ODU.

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