Question: In an E-UTRA network, what is the primary purpose of the 'Temporary C-RNTI' UE identity at cell level?
Option 1: Unique identification for RRC Connection and scheduling
Option 2: Identification used for power control of PUSCH
Option 3: Identification used for the random access procedure
Option 4: Unique identification for autonomous uplink scheduling
Explanation: Temporary C-RNTI is specifically utilized during the initial stages of connection setup, namely for the random access procedure. This allows the network to temporarily identify and manage the UE until a more permanent identifier can be assigned, facilitating efficient contention resolution and access to network resources.