Case 2: SR is Triggered by Uplink Data Arrival
Option 1 (Monitoring control channel(s) responsible for scheduling numerology related to SR configuration(s) with triggered SR)—In this option, since each SR configuration is associated with one or multiple numerologies, the SR transmission based on specific configuration can inform base station about the TTI duration and/or numerology of uplink need. It is reasonable for base station to schedule resource based on the received SR transmission(s). Hence, control channel which can provide corresponding scheduling should be monitored.
Option 2 (Monitoring control channel(s) responsible for scheduling numerology related to SR configuration(s) with triggered SR and numerology larger or smaller than numerology related to the SR configuration(s) with triggered SR)—In this option, since each SR configuration is associated with one or multiple numerologies, the SR transmission based on specific configuration can inform base station about the TTI duration and/or numerology of uplink need. It is reasonable for base station to schedule resource based on the received SR transmission(s). Hence, control channel which can provide corresponding scheduling should be monitored.