To work with modern wireless networks such as UMTS and LTE, it is essential that the telecom professional has full understanding of its basic concepts, such as those that control the call establishment and maintenance, whether it is voice (CS) or data (PS).
In this scenario, RAB and RRC are two of the most important concepts because they are responsible for all the negotiation involved in those calls.
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In addition to RAB and RRC, we still have some other terms...
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