©2017 Mosaik Solutions, LLC - v.201705. Mosaik names and logos are registered, trademarks or properties of Mosaik Solutions, LLC. All rights reserved.

An MNO preparing to deploy VoLTE relied on Mosaik’s highly configurable Network QoE platform to gain verified insights into the performance and coverage of the operating network of their 2G, 3G and voice service partner.

CASE STUDY

THE PROBLEMMosaik’s client, an LTE-only MNO, relied on another Operator to provide 2G/3G connectivity and voice service to their network. Before deploying VoLTE, the client needed to monitor Circuit Switched Fallback (CSFB) for better visibility into their partner’s network. Identifying precise locations of CSFB failure would allow our client to address configuration errors or the absence of their partner’s 2G/3G layer.

THE RESULTSOur client installed the application on over 1,500 employee devices, achieving massive geographic coverage for the measure of network performance, and quality of experience on their LTE network and their partner’s 2G/3G network.

The results allowed our client to identify areas of concern for RF engineers to address and gave them empirical data to hold their partner accountable to their mutual roaming agreement. Additionally, the hard data collected from the device level gave our client the evidence they needed to justify an aggressive timeline for VoLTE rollout.

THE SOLUTIONMosaik developed a custom Network QoE application that measured the time to switch from LTE to 2G/3G when a call is placed. Additionally, the app measured time to return to LTE after a call, to ensure customers would regain access to the data network in a timely manner. When time to return to LTE reached an unacceptable level, the client was provided with a sequence of RAN transitions between the end of the call and the actual return to LTE.

>>LEARN MORE ABOUT NETWORK QOE

ThanksMosaik!

©2017 Mosaik Solutions, LLC - v.201705. Mosaik names and logos are registered, trademarks or properties of Mosaik Solutions, LLC. All rights reserved.

CASE STUDY SAMPLES

Time of CS Fall Back (ms)

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s−06/02 s−13/02 s−20/02 s−27/02 Associate

3rd quartile

Average

Median

1st quartile

Minimum 1st quartile Median Average 3rd quartile Maximum Testss-06/02 0 ms 457 ms 1 106 ms 1 181 ms 1 520 ms 23 876 ms 2 223s-13/02 0 ms 434 ms 1 113 ms 1 241 ms 1 509 ms 30 473 ms 2 412s-20/02 0 ms 0 ms 822 ms 1 366 ms 1 340 ms 2 698 807 ms 9 585s-27/02 0 ms 0 ms 848 ms 2 152 ms 1 313 ms 12 739 409 ms 11 604

Associate 0 ms 0 ms 999 ms 1 650 ms 1 428 ms 12 739 409 ms 31 841

LTE return time without data exchanged (ms)

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s−06/02 s−13/02 s−20/02 s−27/02 Associate

3rd quartile

Average

Median

1st quartile

Minimum 1st quartile Median Average 3rd quartile Maximum Testss-06/02 0 ms 946 ms 1 558 ms 40 185 ms 2 874 ms 51 823 462 ms 1 698s-13/02 0 ms 890 ms 1 368 ms 4 887 ms 2 240 ms 1 420 007 ms 2 322s-20/02 0 ms 471 ms 1 115 ms 51 404 ms 1 748 ms 118 142 733 ms 10 738s-27/02 0 ms 514 ms 1 140 ms 39 826 ms 1 782 ms 105 675 971 ms 12 479

Associate 0 ms 654 ms 1 221 ms 40 322 ms 2 067 ms 118 142 733 ms 29 988