Application Note

WEBSITE: www.jdsu.com/nse

Multi-Operator Core Network (MOCN) Revenue Assurance and Troubleshooting

Application Note

Competitive forces are pushing network operators to deliver better coverage and quality while their revenues remain flat. For many operators, the only realistic way ahead is to substantially save capital and operational costs through network sharing. Over the last ten years, network sharing has evolved from an interesting concept to a strategic requirement. Most early network-sharing agreements involved passive sharing, where network operators save by sharing basic resources such as sites, masts, and power and air conditioning. However, now the shift is to active sharing: where operators share network equipment and, potentially, radio resources. As active sharing becomes a central feature of mobile network operation, there will be a need to address a wide variety of technical, commercial, and regulatory requirements. On the technical front, network sharing was introduced in Release 6 of the 3GPP specifications and has been updated in Release 11, which includes two documents dedicated to network sharing: TR 22.951 and TS 23.251.

Revenue AssuranceThe practical aspects of active sharing have brought billing fairness and verification to the fore. Operators want to know with certainty that shared revenue is wholly accurate. With JDSU as the trusted advisor, a PacketInsight-based solution captures all the traffic at 10 G line rate, analyzes it, and provides a northbound data feed for revenue-assurance purposes by a third-party analytics system. This system is on the GTP-U accumulated payload for a given core with MOCN architecture. The PacketInsight solution can also be enhanced to enable reporting capabilities for additional analysis of captured traffic.

Figure 1. Active RAN sharing (MOCN)

Source: Briskwave Consulting

Application Note: MOCN Revenue Assurance and Troubleshooting 2

Figure 2. The JDSU MOCN revenue-assurance solution

With PacketInsight at the heart of the solution, operators can get an accurate picture of the byte count, providing billing verification on multiple levels. PacketInsight will capture every packet and compute stats based on:

IP

eNodeB#1

Aggregatingrouter #1

IP

eNodeB#2

PacketInsight 10 Gpacket-capture appliance

100 Mbps or1 GE connection

to central site(system manager)

eNodeB#N

Aggregatingrouter #2

To third-party EPC

L2switch

IP

100 Mbps or 1 GE connection from remote sites

Northbound feed to third-party analytics

System manager: Aggregates data from all

PacketInsight appliances and stores

Feeds aggregated data northbound to third-party analytics

Web-based GUI enables generation of local graphs and reports

SCTP total byte count GTP-U UDP payload byte count ARP total byte count GTP-U TCP payload byte count

GTP-U total payload byte count GTP-U UDP DNS payload byte count GTP-U ICMP payload byte count

From here, a system manager can aggregate data across multiple appliances as well as feed this aggregated data northbound to a third-party analytics application.

Figure 3. Revenue-assurance northbound interface

Application Note: MOCN Revenue Assurance and Troubleshooting 3

Real-Time Signaling Analysis, Call Trace, and TroubleshootingThe second part of the solution provides critical troubleshooting support using the industry-leading JDSU Signaling Analyzer Real Time (SART) solution in 2/2.5/3/4G networks. SART enables complete testing of network and individual-call performance across mobile networks, which simplifies resolving the most complex interoperability problems in telephony.

Figure 4. The JDSU MOCN troubleshooting solution

SART is an easy-to-use yet powerful network and service troubleshooting tool. It provides detailed information on one or multiple subscriber sessions and lets a user perform detailed analyses of signaling procedures. Historically, only a handful of highly-skilled network experts have been able to effectively troubleshoot. However, the SART user interface simplifies network and service information, enabling less-skilled users as well as experts to more effectively diagnose problems.

Oine user 2 Real-time user 1 Real-time user 2 Oine user 1

PacketInsight

SART Applications SART SART oine (post processing) Multiuser server Remote access

Aggregated data feeds

Logles

Real-time users access the systemvia remote desktop.

Oine users can open log les saved byreal-time users on theserver or on their PCs.

RDP

Real-timefeed

High-performance server

Product specifications and descriptions in this document subject to change without notice. 2014 JDS Uniphase Corporation 30175820 000 0114 MOCN.NSD.NSE.AE January 2014

Application Note: MOCN Revenue Assurance and Troubleshooting 4

The synergy of SART and the PacketInsight solution is of immense value, providing lightning-fast historical troubleshooting. SART can now go back in time to when an issue occurred and drill into the message or packet at handall in a fraction of the time other solutions on the market take. The combined SART/PacketInsight solution is a must-have in any wireless network.

Figure 5. Signaling Analyzer for real time and historical troubleshooting

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