Wireless Backhaul – Challenges for Network Management

Wireless Backhaul – Challenges for Network Management

Overview

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

[accordian]
Automatic deep discovery of the network, the network elements and the topology, minimises Network Operation Center (NOC) workload and simplifies NOC procedures during network rollout. end-to-end configurationComplex network topologies such as rings are discovered and displayed automatically in the topology view, to enable selection of end points for End-to-End provisioning.
Wizard-based configuration and setup of rings and chains enables faster error-free network deployment.wizard based configuration A step-by-step procedure of a wizard allows you to select the “from” and “to” endpoints and then the wizard automatically realises the cross-connections at all intermediary points. To understand the benefit of this feature, check the network below and imagine having to perform manually configurations at each point! 
Network-wide bandwidth utilisation monitoring and performance monitoring assist in capacity and expansion planning.excellent customer experienceNMS tools can detect congestions and re-route traffic to make sure that the customer experience is excellent. 
An NMS embedded reporting engine with powerful graphs and aggregation capabilities eliminates the need to use additional tools for monitoring and makes possible the vision for unified monitoring. performance monitoring
A fully customisable User Interface and reporting engine empowers the Network Operation Center (NOC) to create own procedures and tools within the management application.
[/fusion_accordion]

 

Conclusion

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

 

2017-02-17T09:33:37+00:00 May 31st, 2013|Categories: Use Cases|Tags: |2 Comments

About the Author:

Christos Rizos is a Network, Systems and Applications Management expert with 20+ years experience in the technology domain, providing consulting services to Vendors and Operators around the world.

2 Comments

  1. Joe Wargo June 6, 2013 at 10:34 pm - Reply

    Nice article. NMS is one area that most forget about in deployment of wireless networks. Most radio systems do support SNMP v1/v2/v3 and have the ability to customize the traps that they will report on. Since most are open source MIB’s there are many good NMS platforms that can easily incorporate the critical data required to monitor and manage the wireless network.

    It would be great to see a follow up article talking about some readily available NMS tools available and some best practices as well. Again great article!

    • admin June 11, 2013 at 4:59 pm - Reply

      Hey Joe, thanks for the comment. I agree with you, NMS is sometimes not considered when deploying wireless networks. This was especially true in the past, when backhaul was mainly TDM based and NMS was treated as a luxury.
      But since wireless networks have become hybrid or packet, NMS has become very important! I definitely believe that the role of NMS will become even more important for Mobile Networks backhaul when LTE and especially small cells are deployed. Collecting in real time alarms and events (i.e. SNMP traps) is necessary to monitor the network availability, but even more important is the capability to monitor the performance of wireless networks. Key Performance Indicators (KPIs) such as bandwidth utilisation and service availability but even indicators such as RSSI and CINR, are essential to assure that the network performs as planned.
      I will definitely prepare more articles on the subject, to include readily available tools and best practices.

Leave A Comment