RAB Assignment in 3G

The purpose of the RAB Assignment procedure is to establish new RABs and/or to enable modifications and/or releases of already established RABs for a given UE. The procedure uses connection oriented signalling.

The CN initiates the procedure by sending a RAB ASSIGNMENT REQUEST message. When sending the RAB ASSIGNMENT REQUEST message, the CN shall start the T RABAssgt timer.

The CN may request the UTRAN to:

-  establish,
-  modify,
-  release
one or several RABs with one RAB ASSIGNMENT REQUEST
message.

The CN shall include in the RAB ASSIGNMENT REQUEST message at least one request to
either establish/modify or release a RAB.

Hi Kumar,

thanks for your interest.