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forumuser-2008
2011-09-13, 09:16 PM
What is difference RRC & RAB?


RRC Setup Success Rate = (RRC Connection Setup Success / RRC Connection Request) × 100%


RAB Setup Success Rate = RAB Assignment Success / RAB Assignment Request × 100%
auto_art
2011-09-13, 09:36 PM
What is difference RRC & RAB?


RRC Setup Success Rate = (RRC Connection Setup Success / RRC Connection Request) × 100%


RAB Setup Success Rate = RAB Assignment Success / RAB Assignment Request × 100%


it would be better if u read UMTS call flows. call flow can clear your doubt regarding the same & best way to understand the difference.!
forumuser-2008
2011-09-13, 09:54 PM
it would be better if u read UMTS call flows. call flow can clear your doubt regarding the same & best way to understand the difference.!

I read :), I need full and clearly understand.
tanbao
2011-09-13, 10:36 PM
I read :), I need full and clearly understand.

It's better thay you read slowly, because it's so simple.
forumuser-2008
2011-09-14, 12:05 AM
It's better thay you read slowly, because it's so simple.

So nobody wants to explain :)
plannerguy
2011-09-14, 06:12 PM
Hi

RRC is signalling part and RAB is Data part.

RRC is in layer3 and RAB is in between UE and CN.

RRC is part of control plane and RAB of user Plane.

Regards
Plannerguy
forumuser-2008
2011-09-15, 03:19 PM
Hi

RRC is signalling part and RAB is Data part.

RRC is in layer3 and RAB is in between UE and CN.

RRC is part of control plane and RAB of user Plane.

Regards
Plannerguy

Can we compare SDCCH Phase/TCH Phase with RRC/RAB?
narula.pawan@gmail.com
2011-09-22, 04:04 AM
Dear,

RRC is the Radio Resource Control which works as the Control Plane in the Layer 3 .
It is basically used for signalling in UMTS.

It can be compared with GSM signalling part such as Immediate Assignment Process for Allocating SDCCH Resource.

UMTS:- RRC Connection Success Rate
GSM:-Immediate Assignment Success Rate.

RAB:- Radio Access Bearer which works as the User plane for provide Data for User Request Service.
for Each service which was requested by User there is only 1 RAB.

e.g. if user requested CS-AMR Call then 1 CS RAB will be generated and provided to user.

similarly for PS Call.

UMTS:-RAB Assignment Success Rate(RNC-CN)
GSM:-Assignment Success Rate(BSC-MSC)

BR//