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Mapping of EPS Bearer Id, E-RAB Id, RB Id?

+6 votes
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I am reading about this IDs and getting doubt about mapping of these ids... Please provide some example to clear this mapping between these IDs

posted Oct 26, 2013 by Sachidananda Sahu

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1 Answer

+1 vote

In LTE, data reaches from external world to UE via a pipe. This pipe consists of ERAB + logical channel + drb identity.

Form PGW to SGW and from SGW to till eNodeB GTP E-RAB is being used.
For an UE, enodeB configures logical channel at its own stack and allocated drb identity for an UE.

There is one to one mapping between these 3 ids.

answer Oct 26, 2013 by Vimal Kumar Mishra
can you make it more clear by taking some example with number ???
commented Nov 1, 2013 by Sachidananda Sahu
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