What is an E-utran radio access bearer?

An E-RAB (E-UTRAN Radio Access Bearer) alludes to the link of an S1 bearer and the related radio bearer. At the point when an E-RAB exists, there is a balanced mapping among this E-RAB and an EPS bearer of the Non Access Stratum. E-RAB QoS – this element portrays the Quality Class Identifier that characterizes QoS parameters like end to end delay, bit error rates and so forth.