## 5 5G FWA Field Trials
### Lessons Learned
#### 5.5.4 Attractive Broadband Business Solution  
Based on the 4G FWA technology business case that has not only been demonstrated as an attractive broadband service proposition to subscribers but also a cost-effective transport network for the operators compared with the wired counterpart solutions. For instance, compared with well-established incumbent operators, FWA deployment may be mainly appealing to the aspiring fixed operators with limited fiber infrastructure. This is because, while supposedly offering comparable performance, the associated expense of the last-mile wireless connectivity is considerably lower than that of fiber solutions. Consequently, FWA presents significant prospects for the aspiring fixed broadband operators in the market [5].  
Furthermore, for the operators, FWA is an attractive scheme for addressing the transport network requirements for the CO connection to the remote nodes. It could be a good replacement for the ADSL networks and for supporting MFH networks between the CO and the indoor small cells for the effective replacement of the legacy cable infrastructure. In addition, it can also support the required connectivity for the increasing IoT devices. In this context, it is not limited to the household devices alone, but also applicable to other devices like security and surveillance cameras [5].  
Moreover, FWA is an attractive scheme for nomadic/temporary service demand. The operators may be required to offer short-term coverage in regions with limited or no demand to cover periodic events. In this scenario, it will be challenging to offer sufficient backhaul for the required temporary radio cells using wired solutions. The challenge can be addressed by FWA deployment that will present a quick, flexible, and cost-effective solution [5].  
Additionally, another challenging scenario is the broadband connectivity provision in urban areas. Infrastructure upgrades and/or deployment in dense urban areas usually demand huge construction/civil work that results in an uneconomical solution. FWA implementation can attend to this by offering low-latency and high-throughput wireless connections. Apart from being a promising solution in the urban areas, FWA is also attractive for rural area deployments. Note that population density in rural areas is sparse and the inhabitants are normally remotely located from the CO. Therefore, broadband service delivery to the subscriber based on wireline infrastructure in the setting will require substantial investment. FWA offers a cost-effective and flexible solution for service delivery in the location [5].  
In general, it is remarkable that the broadband value proposition is not just about delivery of higher throughput to the subscribers, but rather about providing reliable connectivity and advanced multimedia services. For instance, the DSL-based service delivery in some markets is relatively cheaper. Consequently, market penetration will be challenging without an additional value proposition to the connectivity alone. 5G FWA and the associated technologies can be exploited in this context for offering advanced services like 4K UHD TV and voice services over IP in order to attract subscribers [5; 27]. Apart from the fact that it can be employed for service delivery to apartments and multi-dwelling units, cable operators can also exploit it for reaching certain spots more quickly during fiber deployments [13]. It is also imperative to employ 3 GPP-based solutions and/or technologies that are compatible with and capable of converging to 3 GPP standard over time to realize a cost-effective 5G FWA network. Moreover, the operators can extend their 5G FWA network solutions to support mobile use cases in the full-scale 5G deployments [5]. In the following section, we discuss different potential transport solutions for the 5G FWA along with their advantages and disadvantages.