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Which NE stores the details of Default and Dedicated bearer details for all the UE's?

+1 vote
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Which NE stores the details of Default and Dedicated bearer details for all the UE's?

Question:1:- For example, UE1 has 1 default and 3 dedicated bearers. Which NE stores this information and based on what parameters, the bearers are mapped?

Question:2:- When UE is accessing gmail.com, based on what parameters the bearer will be selected, either Default or Dedicated for gmail.com will be decided?

posted Jul 1, 2016 by Kumar S Karpuram

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2 Answers

+1 vote
 
Best answer

Hi kumar,

Q1:

ALL NE will have the context in the form of ERAB regarding bearers in LTE.Because it has to forward the data in the particular bearer to other entity. say PGW - SGW - ENB. ALL NE will have all UE's each bearer information.

Q2:
Each bearer has its own characteristics called QCI, There are 9 QCI in LTE for different different service , check this image for all QCIif you are using voice call then it needs QCI 5 bearer , like wise all other service need different bearers. For GMAIL default bearer is sufficient to serve because it comes under web browsing.

answer Jul 1, 2016 by Jaganathan
+1 vote

Just to add on what Jaganathan mentioned , other nodes of LTE networks such as PCRF and PCEF involve in QoS level control and enforcement and also plays important role during establishment, modification and termination of a bearer.

answer Jul 6, 2016 by Neeraj Mishra
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