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What is the difference between bearer and channel?

+2 votes

I'm confused about bearers and it is terminology in general and especially in LTE.

posted Aug 7, 2014 by Mohammad Alsharif

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1 Answer

+2 votes

As per my knowledge of LTE, bearer term is used when intermediate nodes provide a logical connection to pass information from source to target. Whereas channel is a medium to transfer information from one place to another place. For example: eNodeB supports various level of channels like logical channel (between RLC and MAC layer), transport channel (between MAC and PHY ) and finally various physical channels like PDSCH, PDCCH, PMCH, PBCH etc.

answer Aug 8, 2014 by Harshita
To support Harshita's description: A bearer channel is the media pipeline in the IMS architecture. For example, MRFCs and MRFPs are deployed in logical pairs and provided bearer functions for their sessions.