Backhaul sharing model Sample Clauses

Backhaul sharing model. The broad introduction of ’all-IP’ concept along with Long Term Evolution (LTE) networks [21], meant that transport networks solutions have to be definitely shifted from TDMA (Time Division Multiple Access) techniques towards Ethernet links, which are more flexible in handling IP datagrams. When deploying high capacity Ethernet links operators may initially experience high underutilization of the avail- able link resources, i.e. users subscribe mainly for voice service or peak to average ratio of traffic volume is very high. In such a case operators are seeking the ways to reduce total cost of ownership (TCO) for backhaul links to the decrease the cost per bit of transmitted data. Ideal solution to maximize the utilization and reduce TCO is to share backhaul links with other operators. Backhaul sharing itself is one of the most interesting but very challenging aspects of Radio Access Network sharing. The biggest threat lies in the congestion (and therefore also dropping probability), that can occur when one or more operators traffic is excessing its maximum share or backhaul capacity in general. This is highly unwanted situation against which a proper prevention mechanism shall be proposed. Furthermore it is not only about possible congestion but also fairness in the available resource distribution. In fact the key problem is to fairly distribute capacity resources with guaranteed Quality of Service levels for different services and still maintain high utilization of the avail- able capacity. In principle there are at least three possible ways to deal with the problem: