Question: What action should a User Equipment (UE) take if all received Random Access Responses contain Random Access Preamble identifiers that do not match the transmitted Random Access Preamble, given a successful UL CCA?
Option 1: Stop monitoring for Random Access Responses and wait for further instructions from the network.
Option 2: Perform the Random Access Resource selection procedure again for the next available PRACH occasion and transmit the preamble with the calculated PRACH transmission power.
Option 3: Initiate a new random access procedure for an Other SI request from the UE.
Option 4: Monitor the Other SI transmission without re-initiating the random access procedure.
Explanation: If all received responses do not match the UE's transmitted preamble, indicating a possible failure or contention, the UE should re-attempt the random access process. This involves recalculating the appropriate resource for the next available Physical Random Access Channel (PRACH) occasion and transmitting with adjusted power to ensure successful connection establishment, highlighting adaptive transmission strategies in wireless communications.