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What is Extended QCI in context of LTE-QoS?

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What is Extended QCI in context of LTE-QoS?
posted Jun 30, 2014 by Tapesh Kulkarni

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Standard QCI is used for service differentiation. Extended QCI can be used to differentiate service associated with different priorities.

MME send extended QCI index in RAB assignment message. eNodeB can configure extended QCI and can assign radio resource differently according to the different QCI number and different scheduling weight factor.

Extended QCI may be used as operator defined QCI for differentiating service by user type. As an example an operator may have user categories viz. platinum, gold, silver, bronze etc. Operator may define separate Extended QCIs for voice service corresponding to different user categories as below:

-Platinum Voice
-Gold Voice
-Silver Voice
-Bronze Voice

Thus operator can create service differentiation by allocating Extended QCIs by user category.

answer Jun 30, 2014 by Cellularsme .
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Which network node takes decision on QoS of a multicast bearer.

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I am wandering to check if QoS has really been implemented in LTE commercial networks. If yes,

i) Is this limited to VoLTE, or are there other application specific scenarios as well?
ii) Are operators already using extended QCIs in commercial networks?

Commercial deployment and application references will be highly appreciated?

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As I know, in EPC the e2e qos is managed in HLR/HSS and PCRF. Can someone explain the process and the reference. Thx