Voice / Video / Data

Delay Measurements over 5G Networks

Measure One-Way Delay (OWD) and Round-Trip Delay (RTD) with millisecond accuracy over commercial 5G networks.

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5G networks offer high throughput coupled with ultra-low latency. Because so many applications will rely on 5G speeds, it is important to rigorously test these networks for performance. GL's solution can precisely measure One-Way Delay (OWD) and Round-Trip Delay (RTD) with millisecond accuracy. This solution uses the Dual UTA HD and VQuad™ software to control 5G compatible cell phones via Bluetooth® or through an ACC headset cable. Users can set up phone calls through the VQuad™ software either manually or automatically through scripts. One Dual UTA HD can interface with up to two cell phones independently. Alternatively, if the cell phones are in different geographic locations, two Dual UTA HD's can be used: one for each phone. The OWD measurement is performed using GPS receivers (necessary if the phones are geographically separated) or by using the internal clock of the Dual UTA HD (if both phones are connected to the same Dual UTA HD).

The measurements can be saved and sent to an optional central database. Users may view the results using GL's WebViewer™, a web-based dashboard which accesses the central database. Furthermore, the measurements can be viewed as a function of location using Google Maps. This is useful when testing 5G coverage.

Webinar april 2021

In addition to the delay measurements, users can also compute voice quality scores using the industry standard POLQA algorithm (per ITU-P.863). These measurements can also be sent to the Central Database and accessed using the WebViewer™.

GL's VQuad™ solution can measure OWD, RTD and Voice Quality on all cellular networks including 2G, 3G, 4G VoLTE as well as 5G. In fact, all carriers and all networks are supported including OTT (over-the-top) applications and VoWiFi.

One-Way Delay using 1 Dual UTA HD

One-Way Delay Measurement
(Using Single Dual UTA HD)


Item No Product Description
VQT010 VQuad™ Software (Stand Alone)
VQT251 Dual UTA HD Next generation Dual UTA with FXO Wideband support
VQT252 Dual UTA HD – Bluetooth Option
VQT002 Voice Quality Testing (PESQ only)
VQT006 VQT w/ POLQA Server license (no limitations)
VQT014 AutoVQT™ (POLQA v2.4)
VQT014U Upgrade from VQT POLQA to AutoVQT™
VQT040 WebViewer™
VQT041 WebViewer™ w/Oracle
5G Core Network Emulation