The all-IP trend and the explosive growth of mobile data services have imposed higher demands on the wireless backhaul networks. Management has also become more complex due to the nature of packet-based transmission and the resiliency and flexibility features of packet networks.
Currently, the management of wireless backhaul networks encounters multiple challenges:
- Management of microwave networks employing different technologies – such as PDH / Hybrid / Native-Packet, Point-to-Point, Point-to-Multi Point, etc. – and handling multiple service types of different requirements.
- End-to-end service provisioning and QoS assurance, providing the same OAM experience as with traditional SDH and MSTP networks.
- End-to-end service and resource performance monitoring, for services transported over multiple interfaces (E1-TDM, E1-IMA, Fast Ethernet, etc.) and through Pseudowire (PW) technology at the last-mile and the aggregation segments of the backhaul network.
Characteristics required for Wireless Backhaul
To successfully apply a Centralised Wireless Backhaul Management, the requirements can be summarised as following:
- Any backhaul: NMS must manage 2G, 3G, mobile WiMAX, 4G and LTE
- Any technology: NMS must be manage Point to Point (PtP) and Point to Multi Point (PtMP), TDM, Hybrid and IP technologies.
- Any frequency: NMS must manage microwave (6-38 GHz), and millimetre wave (60/70/80 GHz)
- Any topology: NMS must manage Star, Chain and Ring topologies