Читать книгу Mobile Communications Systems Development - Rajib Taid - Страница 13

You see, wire telegraph is a kind of a very, very long cat. You pull his tail in New York; and his head is meowing in Los Angeles. Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there. The only difference is that there is no cat.

Source: Albert Einstein.

Gone are the days when mobile phones were considered a luxury; today, it is among our daily necessities. Mobile communications have evolved quickly and revolutionized the way we communicate and have brought people around the globe closer than ever before. At the same time, the mobile telecom industry has witnessed an explosive growth rate over the past many years, offering a wide range of services and products.

The latest trend is the availability of multitasking smartphones and various apps for different services and capabilities for our day‐to‐day needs. The combination of smartphones and Apps is enabling mobile broadband services to everyone, everywhere, and anytime on the go. This is leading to a growing demand for smartphones along with manifold increase in Internet traffic. The legacy mobile communications network standards such as Global System for Mobile Communication (GSM) (2G), General Packet Radio Service (GPRS) (2.5G), Universal Mobile Telecommunication System (UMTS) (3G), Long‐Term Evolution (LTE) (4G), and the emerging and latest buzzword 5G, along with the growth in the number of mobile subscribers, have created a gap between the demand and supply of skilled mobile communications professionals.

The mobile communications industry is a key driver and offers immense employment opportunities. The advent of the 5G system and network is expected to create and offer more opportunities for various professionals and business owners. Communications solution service providers, network installers, original equipment manufacturers (OEMs), and communications software solution services provider firms are demanding skilled and experienced professionals. In the mobile communications space alone, career opportunities exist across these different verticals and areas. Some of these career opportunities are shown in Figure 1.1.

The career opportunity areas shown in Figure 1.1 are at a very high level only. Each of the areas shown spans across multiple systems and subsystems. Opportunities exist at an entry‐level or experienced professional level for various job roles such as software developer and maintenance, team leader, project manager, system architect and engineering, site engineer, network engineer, network operation and maintenance, and so on.

Mobile communications systems and networks are built based on open technical standards, covering a wide spectrum of knowledge areas as illustrated in Figure 1.1. The knowledge areas are spread across the different system engineering areas of mobile communications systems and networks. This book attempts to cover some of those knowledge areas from a practical point of view, so that one can be self‐equipped to start a career in the mobile communications domain.

Figure 1.1 Career opportunities in the mobile communications space.