4G LTE and IMS Network Performance Management


LTE (Long Term Evolution) has quickly become the access network technology of choice for next-generation cellular network deployments, allowing mobile operators to offer high-speed mobile connections and cost-effectively provide mobile internet applications. To meet increasing consumer demands for more mobile applications and services, LTE has been confirmed as the fastest developing mobile system technology ever. The use of multiple vendor technologies creates new challenges in gaining end-to-end visibility of performance and availability of 4G LTE and IP Multimedia Subsystem (IMS) networks and services.

The result: a data collection challenge that puts mobile operators at risk of not having visibility into critical network elements when issues arise. This “visibility gap” puts Network Operations teams in the dark at exactly the time they need complete, real-time visibility into how the network is performing.

Additionally, mobile operators face the challenge of monitoring a large scale network as LTE/IMS architecture collapses what were previously two separate networks (voice and data) into a single all-IP system. These networks can include five core, multi-vendor systems: radio access network, aggregation and backhaul, Ethernet packet core, MPLS transport/backbone, and the IMS core.

Meeting the 4G Network Performance Challenges

To meet these challenges, SevOne delivers a real-time, end-to-end view of the infrastructure, independent of Element Management System (EMS) and equipment type, and performance metric collection methods, enabling mobile operators to:

  • Effectively manage and optimize network capacity while reducing LTE, backhaul, and IMS expenditure and customer churn.
  • Proactively monitor network performance to ensure the infrastructure at all points meets current service level agreements and addresses future demands.
  • Optimize LTE and IMS infrastructures to support increased multi-media traffic levels, markets and geographies.
  • Isolate, determine, and alert on performance issues ahead of service impact to meet and exceed customer expectations.

SevOne provides breakthroughs in speed, scalability, and ease of use, providing complete and immediate visibility by collecting and monitoring all of your performance indicators, with no limits. Regardless of your infrastructure size, SevOne delivers affordable, real-time system wide visibility without sacrificing the speed required to effectively troubleshoot your service impacting events.

Unified Performance Visibility

SevOne – via our xStats plug-in – integrates with the vendor-specific EMS for each LTE and IMS component for the bulk collection of key performance statistics. This unique approach avoids the overhead of directly polling or collecting performance data from individual network elements, and reduces the overhead of adds, moves, and changes as the number of network elements grow. SevOne employs standard network performance protocols to collect, report, and graph performance statistics directly from routers, switches, servers, and firewalls, as well as every application, operating system, or process that is generating network traffic. In addition, SevOne gathers NetFlow giving mobile operators crucial insight into bandwidth usage and performance providing the ability to look beyond simple network utilization statistics, and identify who is talking to whom, and who is using the most network resources.

SevOne works with leading mobile operators to implement the collection of bulk performance statistics via the SevOne xStats plug-in and adapters from the EMS of their LTE, backhaul, and IMS equipment providers. Starting with routers or eNIDS at the cell-site and following the data path back through the entire network to the core, SevOne can monitor all of the components in the data path (including eNodeB, PGW, SGW, MME, PCRF, CSCF, HSS, and more) and deliver an end-to-end view of the LTE and IMS infrastructure, independent of equipment type.

This new capability coupled with SevOne’s support of more than 15 performance metric collection methodologies, including SNMP, NetFlow, and IP SLA, provides end-to-end collection and monitoring capabilities for 4G LTE and IMS infrastructures.