Workshop on 4G Mobile Radio Access Networks Delivering Ubiquitous User Experience via Cutting Edge Technologies

摘要

Over the last 20 years, data rates in mobile communications have seen a ten-fold increase every five years. Compared to which, mobile network operators have observed a true explosion of data traffic within their networks only over the last few months. Although user expectations in terms of data throughput and service experience are growing and data usage is becoming intensive due to the generalization of flat rates, the average revenue per user (ARPU) has to remain the same in order to ensure economic viability for mobile network operators in mature markets. This translates into a need to reduce the cost per transmitted bit. In addition, the network upgrades have to be smooth and make use of the existing infrastructure (as much as possible) in order to take advantage of previous investments. However, for current and upcoming cellular technologies (e.g. HSPA, LTE R8), the achievable data rates are strongly dependent on the users' positions in a network.