Question: In intra-period scheduled UL (Uplink) transmissions, when a UE (User Equipment) is indicated to perform a UL transmission after sensing, and the transmission follows a previous one with a gap of more than 16µs, what action does the UE take regarding channel sensing before transmitting?
Option 1: The UE transmits without sensing if the previous transmission was on the same carrier.
Option 2: The UE always drops the transmission to avoid collisions.
Option 3: The UE senses the channel for at least a sensing slot duration within a 25µs interval before transmitting, and transmits only if the channel is idle.
Option 4: The UE extends CP (Cyclic Prefix) and then transmits without sensing.
Explanation: According to procedures for intra-period scheduled UL transmissions, when a UE is instructed to transmit after sensing with over 16µs since the last transmission, it must sense the channel for at least one sensing slot duration within a 25µs interval before transmitting. If the channel is idle, the UE transmits; otherwise, it drops the transmission to prevent interference or collisions, ensuring efficient use of shared spectrum resources.