US 2020/0007185 A1 · DATA COMPRESSION METHOD AND DEVICE

Abstract

The present disclosure relates to the field of mobile communications, and in particular, to a data compression method and device. In order to solve the problem of low compression efficiency in the prior art, the method comprises: sampling an obtained baseband signal and obtaining a number of discrete baseband signals to achieve an initial compression; calculating amplitude and phase values of each discrete baseband signal, on the basis of bit widths preset for the adjusted amplitude value and the phase value, carrying out a bit-truncating on the adjusted amplitude value and the phase value respectively, and combining the truncated phase value data and amplitude value data to obtain the final compressed discrete baseband signal. In this way, by truncating bits according to the preset bit width without distortion, the data bits of the baseband signal can be reduced accordingly, thereby reducing the amount of transmitted data, effectively improving the compression efficiency, and thus saving fiber resources.

Claims12

Dependent claims

A method for compressing data, the method comprising:

obtaining a baseband signal;
sampling obtained baseband signal to obtain several discrete baseband signals;
calculating a phase and an amplitude of each of the discrete baseband signals, and adjusting the amplitude of each of the discrete baseband signals respectively so that adjusted amplitude satisfies a preset peak-to-average ratio;
and
performing respectively for each of the discrete baseband signals operations of:
bit-truncating the phase and the adjusted amplitude corresponding respectively to each of discrete baseband signals according to bit widths which are set respectively corresponding to the phase and the adjusted amplitude, and combining bit-truncated phase and bit-truncated amplitude into a compressed discrete baseband signal.

3 more elements

A device for compressing data, the device comprising a memory configured to store a computer readable program, and a processor configured to execute the computer readable program to:

obtain a baseband signal;
sample obtained baseband signal to obtain several discrete baseband signals;
calculate a phase and an amplitude of each of the discrete baseband signal, and to adjust the amplitude of each of the discrete baseband signal respectively so that adjusted amplitude satisfies a preset peak-to-average ratio;
and
perform respectively for each of the discrete baseband signals operations of:
bit-truncating the phase and the adjusted amplitude corresponding respectively to each of the discrete baseband signals according to bit widths which are set respectively corresponding to the phase and the adjusted amplitude, and combining the bit-truncated phase and amplitude into a compressed discrete baseband signal.

3 more elements

Dependencies are inferred from the claim text.

Data compression method and device

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Data compression method and device

Life of this patent

Abstract

Claims12