t studies, INI is used as an input for scheduling mechanisms [19-21, 24]. INI can be called as inter-band interference (IBI) in some of these studies. Resource allocation between users: Most of the multi-numerology scheduling studies in the literature focus on resource allocation [12, 13, 16, 19-21, 23, 26, 27]. The main aim of these studies is the optimization of bandwidth allocations. They are not directly related with the waveform parameter assignment but resource allocation and waveform param- eter assignment should be handled jointly. Joint optimization: Numerology assignment, waveform processing, the amount of INI, and resource allocation can be jointly optimized. Some of the studies make optimizations for some of them together [17, 20, 21, 25]. A summary of the literature is presented in Table 7.1. 7.2 Waveform Parameter Options In the cellular communications systems, there is a trend that shows an increase in the num- ber of configurable parameter options with each generation [4]. There is a linear increment 7.2 Waveform Parameter Options until now. The number of configurable parameters for a waveform design is also increased with 5G. This section presents a brief discussion on the waveform parameter options that are defined in NR [40]. There are two key points from the flexibility perspective. The first one is the number of configurable parameters in the system. Availability of more configurable parameters gener- ally means high flexibility. The second key point is to have the capability to provide different parametrization options in the same frame for the users in one coverage area. 5G NR has availability of different configurable parameters and it also provides the capability to assign different parameters to users at a time [40]. In future, all the different parameters may be present for each user in a frame but this is not the case for 5G NR. There are drawbacks while employing multiple waveform parame- ters in one frame and they limit the number of parameter options that are available for the assig