Option 5 (UE can autonomously select one of multiple SR configurations and/or multiple bits SR setting, and the multiple SR configurations and/or multiple bits SR setting are decided based on some conditions)—Possibly, the UE will be configured with one or multiple criteria for deciding appropriate set of SR configurations and/or multiple bits SR setting. The criteria could be threshold for TTI length and/or numerology. The criteria could be LCG(s).
FIG. 11 is an exemplary illustration of numerology and TTI concept. As shown in FIG. 11, the numerology is interpreted as sub-carrier spacing (SCS) in this example. The TTI refers to time domain duration of a scheduling (e.g. one or multiple OFDM symbols, millisecond, slot, subframe, . . . ). Alternatively, the numerology could be interpreted as a specific TTI duration in certain SCS. Moreover, a band can be semi-statically separated into different sub-bands for supporting different numerologies in system point of view. From UE point of view, such separation may not be visible. Alternatively, there could be no separation and network allocate resource on different numerologies dynamically based on control signal.
