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DPCM - Differential Pulse Code Modulation

PCM (Pulse Code Modulation) permits adjacent samples to be described from extreme opposite ends of the sample range. As this situation rarely occurs it should be able to convey the baseband data using fewer bits. DPCM allows this to be achieved by describing only the changes between the samples.


  • Fully interactive 3GPP based network map
  • Narrated call flows
  • Detailed network procedures

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