Frequency domain compression for fronthaul interface
AssigneeNokia Technologies Oy
InventorsGUNTER WOLFF, Roy YANG
Life of this patent
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Abstract
Frequency domain compression of fronthaul interface for transporting frequency domain data over Ethernet includes applying Inverse Discrete Fourier Transform to frequency domain data contained in a frequency bandwidth to generate a time domain output signal in a time domain. The time domain output signal is compressed to generate a compressed time domain output signal. The compressed time domain output signal is transmitted over a fronthaul interface to a remote unit. The compressed time domain output signal is decompressable at the remote unit to generate a decompressed time domain output signal. Discreet Fourier Transform is applied to the decompressed time domain output signal at the remote unit to recover the frequency domain data.
Claims20
A method, comprising:
- applying Inverse Discrete Fourier Transform to frequency domain data contained in a frequency bandwidth to generate a time domain output signal in a time domain;
- compressing the time domain output signal to generate a compressed time domain output signal;
- transmitting the compressed time domain output signal over a fronthaul interface to a remote unit, where the compressed time domain output signal is decompressable at the remote unit to generate a decompressed time domain output signal, and where applying Discreet Fourier Transform to the decompressed time domain output signal at the remote unit recovers the frequency domain data.
A method, comprising:
- receiving a compressed time domain output signal, where the compressed time domain output signal is generated by applying Inverse Discrete Fourier Transform to frequency domain data contained in a frequency bandwidth to generate a time domain output signal in a time domain, and compressing the time domain output signal;
- decompressing the compressed time domain output signal;
- and applying Discreet Fourier Transform to the decompressed time domain output signal to recover the frequency domain data.
An apparatus, comprising:
- at least one processor;
- and
- at least one memory including computer program code,
- the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following:
- apply Inverse Discrete Fourier Transform to frequency domain data contained in a frequency bandwidth to generate a time domain output signal in a time domain;
- compress the time domain output signal to generate a compressed time domain output signal;
- transmit the compressed time domain output signal over a fronthaul interface to a remote unit, where the compressed time domain output signal is decompressable at the remote unit to generate a decompressed time domain output signal, and where applying Discreet Fourier Transform to the decompressed time domain output signal at the remote unit recovers the frequency domain data.
Dependencies are inferred from the claim text.