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Radio unit, baseband processing unit and base station system

  • US 9,794,828 B2
  • Filed: 09/16/2015
  • Issued: 10/17/2017
  • Est. Priority Date: 05/31/2012
  • Status: Expired due to Fees
First Claim
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1. A method for processing uplink signal data in a base station system, the base station system comprising a radio unit and a baseband processing unit, the method comprising:

  • obtaining, in the baseband processing unit, compressed uplink signal data from the radio unit, determining by the baseband processing unit a compression mode of the compressed uplink signal data, and selectively decompressing, in the baseband processing unit, the compressed uplink signal data into baseband processed downlink frequency domain signal data based on the compression mode of the compressed uplink signal data; and

    obtaining the baseband processed downlink frequency domain signal data, compressing the downlink frequency domain signal data according to a compression mode by using a first compression algorithm;

    generating a feedback signal indicating an actual compression ratio resulting from compressing the downlink frequency domain signal data;

    dynamically controlling the compression mode based on a comparison between the actual compression ratio indicated by the feedback signal and the estimated compression ratio, andtransmitting the compressed downlink frequency domain signal to the radio unit when the actual compression ratio is greater than or equal to the estimated compression ratio, and transforming the downlink frequency domain signal data back into downlink time domain signal data and compressing the downlink time domain signal data by using a second compression algorithm when the actual compression ratio is less than the estimated compression ratio;

    decompressing, in the radio unit, the compressed downlink frequency domain signal data or the compressed downlink time domain signal data.

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