SATELLITE & FIXED WIRELESS

Satellite latency is the gateway queue, not the orbit.

You cannot shorten the path to orbit. You can stop adding latency on the ground — and the ground is where most of the delay your subscribers feel is actually created.

2–4×

RTT climb under load as the gateway and beam buffers fill — to roughly 400–500 ms

near baseline

where RTT stays instead, with AQM, L4S and interactive flow protection at the gateway

~$0.30

per subscriber for carrier-grade CGNAT on commodity x86

25–60 ms

LEO idle RTT — where removing the load-induced spike is the whole game

The gateway is where the experience is won

Propagation delay is physics. The queue on top of it is a choice — and it is usually the larger number.

The spike, not the baseline

Under load, satellite RTT climbs two to four times as the gateway and beam buffers fill. That climb is bufferbloat, it happens on the ground, and it is the part a subscriber notices.

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LEO and GEO, same fix

For LEO the idle RTT is already low, so removing the load-induced spike is nearly the whole experience. For GEO you cannot hide the physics, but cutting the queuing on top still changes how the link feels.

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Satellite is a CGNAT operator

A constellation runs on scarce IPv4 by definition. Carrier-grade NAT at that scale costs roughly $0.30 per subscriber on commodity x86, at the teleport or PoP.

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Fair share across a beam

One beam carries many subscribers. Flow isolation stops a single heavy sender from taking the queue and degrading everyone else sharing that capacity.

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Signal congestion, don’t cause it

L4S marks instead of dropping, so an interactive session and a bulk transfer can share the same congested link without the interactive one breaking.

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At the teleport, on x86

The same XDP data plane that terminates subscribers does the translation, the queuing and the filtering — on commodity servers at the ground station rather than a chassis.

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The briefs behind this page

Three briefs written for satellite and fixed wireless, plus the latency and CGNAT work underneath them.

Measure it at your own teleport

A proof of concept runs on your own x86 against your own traffic. Send subscriber count and busy-hour throughput and we size it with you.

Need Solution?

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