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What is the need for UE capability to both eNodeB and MME?

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What is the need for UE capability to both eNodeB and MME?
posted Aug 15, 2014 by anonymous

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1 Answer

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Majorly, UE capability can be divided into following two categories:
Access Stratum Capability:
- The capability information on which eNodeB takes decision for an UE.
In radio capablity, UE tells its category, supported ROHC profile, rf parameters, supported bands (like band7, band1 etc), measurement capability, Feature Group Indicator etc.

Non-Access Stratum Capability:
- The capability information on which MME/Network takes decision for an UE. In the NAS-capability, UE informs to MME about its supported algorithm.

answer Aug 15, 2014 by Vimal Kumar Mishra
How does eNB get to know all these informations of UE? The ueCapabilityInformation is completely a (dedicated) NAS message.
commented Dec 24, 2020 by Manje Gowda K.r.
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