In this work, we present a framework to provide network services to fixed home users in rural areas through joint utilization of fifth-generation (5G) next-generation node B (gNB) and an unmanned aerial vehicle (UAV), wherein, users outside the service area of gNB are served by the UAV. In this regard, we propose an optimization framework to maximize the coverage radius of the gNB considering the 5G rural macro (RMa) propagation scenario. Next, we propose optimization frameworks for UAV-assisted non-orthogonal multiple access (NOMA) and orthogonal multiple access (OMA) data transmission schemes. The aforementioned frameworks for UAV-assisted data transmission schemes minimize the communication power and compute the optimal UAV hovering height to meet the desired QoS requirements of the users. Thereafter, we investigate a framework to design a wide elliptical beam to serve the users under the coverage of the UAV. Next, in this paper, we present an exhaustive mathematical framework to determine the angular velocity of the rotors, the total current consumed by the rotors and the hovering power consumption of the UAV, wherein the UAV hovers at the optimal height depending upon the NOMA or OMA data transmission scheme. We propose a graphical methodology to compute the battery life of the UAV. The simulation results demonstrate that the proposed method of UAV-assisted NOMA and OMA data transmission coupled with the wide elliptical beam significantly reduces the communication power requirements to meet the desired QoS requirements of the ground users as compared to the conventional UAV-assisted NOMA and OMA transmission schemes. Furthermore, the proposed methodology considerably enhances the battery life of the UAV, thereby resulting in a greater hovering time of the UAV compared to the conventional UAV-assisted NOMA and OMA transmission schemes.