Technology · 5 min read
How to reduce radio dead zones using LTE and Wi-Fi
Basements, stairwells, plant rooms and lift shafts break radio coverage. Dual-path IP communication closes most of those gaps.
Every radio fleet has a map of places where communication simply stops working: the lower parking level, the stairwell, the plant room, the back of the warehouse, the lift.
Why dead zones exist on radio
A licensed system has one path — the handset to the repeater. Where that path is blocked by concrete or steel, there is no fallback. Fixing it means adding in-building repeaters or a bi-directional amplifier, which is expensive and site-specific.
Two paths instead of one
An IP-based device can reach the cloud over cellular or over Wi-Fi and switch between them mid-conversation. Most indoor dead zones already have Wi-Fi coverage installed for other reasons, so the gap closes at no additional infrastructure cost.
Practical steps
- Map the known dead zones before deployment rather than after.
- Confirm the site Wi-Fi covers them and permits device traffic on the required ports.
- Enable seamless handover so a call survives the cellular-to-Wi-Fi transition.
- Where neither path exists — deep underground, offshore — keep licensed radio and bridge it with a gateway.
Modernising a radio fleet?
We will map your existing sites, devices and repeaters to a staged Pushytap deployment — usually keeping the hardware you already own.
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