Application performance starts at the device

Does 5G automatically make public-safety applications perform better?

I sometimes think discussions about 5G application performance start in the wrong place.

Media and industry announcements often associate advances in 5G radio and core networks with faster applications, lower latency and improved responsiveness.

The technology is real. The benefits are useful.

But they do not guarantee better end-to-end application performance.

If public-safety traffic represents no more than 1% of a commercial network’s overall capacity, and already has priority over consumer traffic, how often will assigning different priorities to individual public-safety applications produce a measurable operational benefit?

Network averages do not tell the whole story. Congestion is local. A major incident can concentrate responders and devices within a single radio sector.

But before traffic reaches the network, it has to leave the device.

A responder’s smartphone may be running multiple applications such as MCPTT, CAD, mapping, messaging and video while also connecting to cameras, sensors and wearables.

Alternatively a vehicle may connect CAD, cameras, telemetry and multiple officers’ smartphones through one local network, router and modem.

These environments need to be engineered as complete operational systems. They should not develop through the continual addition of independently applications and devices.

Before traffic can benefit from network prioritisation, it must pass through processors, operating-system scheduling, video encoding, encryption, application buffers and modem buffers. Heat, battery state, antenna performance and network signal quality can also affect the result.

Application-specific prioritisation still matters. But it only works properly when the same policy is implemented across the complete chain—from the application and device through to the radio network, core and application server.

Continued 5G evolution is important. But when an application performs poorly, the investigation should start with the end-user system.

Application performance starts at the device.

#PublicSafetyCommunications #CriticalCommunications #5G #MissionCriticalCommunications #PublicSafetyBroadband