Question: What is the primary distinction between NBAP common procedures and NBAP dedicated procedures in the context of UTRAN Iub interface Node B Application Part (NBAP) signalling?
Option 1: NBAP common procedures are carried on dedicated signalling links, while NBAP dedicated procedures use shared signalling links.
Option 2: NBAP common procedures relate to a specific UE or initiate a Node B Communication Context for a UE, whereas NBAP dedicated procedures are not related to any specific UE.
Option 3: NBAP common procedures incorporate logical O&M procedures and are unrelated to a specific UE, while NBAP dedicated procedures are specifically related to a Node B Communication Context for a UE.
Option 4: NBAP common procedures are used for Node B internal management, whereas NBAP dedicated procedures manage external communications with UEs.
Explanation: This is correct because NBAP common procedures either initiate communication contexts or are unrelated to any UE, and include logical Operations & Maintenance (O&M) procedures. In contrast, NBAP dedicated procedures are tied to a Node B Communication Context for managing communications for a particular context or UE, highlighting the scope and application of each in UTRAN Iub interface signalling.