Method 2+Alternative 1 or Alternative 2
Case 1: Special SR Triggering Event (e.g. Sidelink BSR, Timer and/or Counter Controlled Based Control Element (e.g. Retx-BSR Timer), Potential New Uplink MAC Control Element Which Can Trigger SR)
Option 1 (Monitoring control channel(s) responsible for scheduling numerology related to the multiple bits setting of the last SR transmission)—In this option, since a multiple bits setting is associated with one or multiple numerologies, a base station can schedule resource based on the received SR transmission(s). Hence, control channel which can provide corresponding numerology scheduling should be monitored.
Option 2 (Monitoring control channel(s) responsible for scheduling numerology related to the multiple bits setting of the last SR transmission and numerology larger or smaller than numerology related to the multiple bits setting of the last SR transmission)—In this option, since each kind of multiple bits setting in SR 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.