Resource Control In Next Generation Access Networks

摘要

Operators around the world have started to transform their network infrastructure to incorporate the next generation packet based technologies. The transmission technology is primarily VDSL/ADSL2+ for copper and optical Ethernet for fibre. Besides the native packet oriented services such as IP-TV and VPN services, these networks must also be able to support emulated legacy services. Supporting all of these services imposes a wide range of bandwidth and QoS requirements, which demands a strong resource control to optimise resource usage.The network must support QoS mechanisms. Bandwidth is never an unlimited resource, certainly not in the access network: resource control is an essential complement to the QoS mechanisms available today in NGN networks.