3G shared infrastructure

The paper gives an overview of the network sharing options open to 3G network operators. The drivers for network sharing are mainly economic and the need to roll out infrastructure quickly. Network sharing may always be the preferred implementation strategy in sparsely populated areas. Some of the technical issues are outlined, particularly in the areas of antenna sharing and network management, which are considered to be the main challenges in sharing 3G networks. The regulatory framework is introduced. The paper concludes with a brief look at the future of network sharing.