The use of a satellite communications link to carry traffic between a remote base station or access site and the core network, providing connectivity where terrestrial backhaul infrastructure is unavailable or impractical to deploy.

Key Points

Connects a remote base station or access site to the core network over a satellite link, rather than the fiber or point-to-point microwave links terrestrial backhaul typically uses
The default backhaul option specifically where terrestrial infrastructure is absent and impractical to build — remote rural areas, offshore platforms, temporary or disaster-response deployments — rather than a general-purpose backhaul choice
Carries meaningfully higher latency than terrestrial alternatives, particularly over GEO satellite links, directly affecting the achievable quality of experience for latency-sensitive traffic riding over the backhaul connection
Throughput ceiling is typically lower and more expensive per unit of capacity than fiber, making satellite backhaul a capacity-constrained option relative to terrestrial links even where it's the only practical choice
Increasingly supplemented or replaced by LEO satellite capacity specifically where lower latency matters, since LEO's lower orbital altitude delivers meaningfully better latency characteristics than traditional GEO-based satellite backhaul

Concept

Where a terrestrial backhaul link connects a base station to the core network over fiber or a point-to-point microwave path, satellite backhaul instead routes that same traffic up to a satellite and back down to a gateway connected to the core network — a path that reaches essentially anywhere with a clear view of the relevant orbital arc, at the cost of the additional propagation distance and generally more constrained capacity a satellite link carries relative to a direct terrestrial connection.

Explainer

The tradeoff satellite backhaul makes is reach versus performance — it can connect a base station literally anywhere within its coverage footprint, including locations no terrestrial backhaul technology could economically reach, but every user session riding over that backhaul link inherits the satellite path's latency and capacity constraints, which is why satellite backhaul is chosen specifically when the alternative is no connectivity at all rather than as a preferred option among several practical choices. This is precisely why the shift toward LEO-based satellite backhaul matters operationally: an operator previously accepting GEO-level latency purely because no terrestrial alternative existed can substantially improve backhaul performance by moving to LEO capacity without needing to solve the underlying terrestrial infrastructure gap at all. For CE verticals, satellite backhaul is the connectivity foundation that makes cellular coverage economically viable in remote mining, energy, and rural telecommunications contexts specifically — sites where the cost of terrestrial backhaul construction would make base station deployment uneconomical regardless of local demand, making satellite backhaul availability a direct enabler of coverage that would otherwise not exist at all.

Cite this entry

Satellite Backhaul. ConnectedEarth Knowledge Base. https://connectedearth.space/knowledge-base/satellite-backhaul/ (updated 13 September 2026).