Compress data from MEMS accelerometer and transfer it with NBIoT

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I have raw hex data from MEMS accelerometer with sampling rate of 1 sample per millisecond for a measurement duration of 2.5 seconds for each trace.The data contains first 12 bits for timestamp and then continued with 2 for each axis of acceleration X,Y and Z. I want to reduce this hex data with size around 31kb to 120 bytes for wireless data transfer. I want to achieve this through python

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