2. Background

More and more applications get wireless, so will the game consoles. By sponsoring this thesis, Ericsson wanted to investigate the possibility of connecting third party game consoles with each other over Bluetooth and with mobile phones over GSM networks. The games in the phones will be more sophisticated in the future, but as games usually demand a larger screen than available on a small phone, it is more flexible to use a specialized game console for gaming and connect it to a small phone. To make it really flexible the best solution would be to use Bluetooth to connect the phone and the game console to each other like in Figure 2.1

Figure 2.1: Picture showing the concept of the thesis.

 The goal of this project was to connect two game consoles over Bluetooth and GSM. We chose Gameboy as our game console. The reason for choosing Gameboy was that we had seen some information on the Internet about people developing their own software and hardware for the Gameboy. With the information we had seen we made the conclusion that it would be possible for us to use it as our platform. More that pointed in the direction of using the Gameboy was that it is the most well known handheld game console and that it has quite good performance.

For a long time many products has been using wires, or in best case infrared communication. Cables are uncomfortable and limiting, and infrared communication requires free sight, so there is a need for a radio-based solution. There have been products made that use radio to communicate, but no good common standard. The solution to this is Bluetooth, a standardized radio network solution. It has standard profiles for most products, making it possible to mix products of different brands as long as they follow the standard. As the future will be wireless and Bluetooth is the future of wireless products, we chose to use Bluetooth in our thesis.