Multi-region satellite integration: technical coordination between AMER and EMEA
The provision of satellite services with continuous coverage between the AMER and EMEA regions entails engineering challenges that go beyond the availability of orbital capacity. Beam management in HTS or VHTS systems requires coordinated frequency planning that accounts for differences in spectral allocations across ITU-R jurisdictions, the varying national licensing frameworks, and the need to avoid interference between overlapping coverage segments. This coordination is non-trivial: the frequency tables applicable in ITU Region 2 are not directly equivalent to those of Region 1, which constrains the design parameters of transponders and the admissible EIRP values within each footprint. Service continuity between regions also requires inter-beam or inter-satellite handover mechanisms that maintain the transport-layer session without perceptible degradation for mission-critical applications. In LEO or MEO architectures with multiple orbital planes, the switching latency between terrestrial gateway nodes located on different continents introduces RTT variations that must be absorbed by TCP acceleration protocols or by specific adaptation layers. The synchronisation of network management systems (NMS) operated across different time zones and under different regulatory frameworks adds operational complexity to the real-time management of incidents. Satellite roaming, understood as the ability of a terminal to access orbital capacity managed by an operator other than the primary contracting operator, requires capacity agreements between operators that precisely define the guaranteed QoS parameters, the terminal authentication procedures, and the inter-operator billing mechanisms. Unlike roaming in terrestrial mobile networks, the absence of a universally adopted standard for satellite roaming necessitates the implementation of interoperability solutions on a case-by-case basis, with direct implications for activation times and service auditability for governmental clients. From a regulatory perspective, operating the same system in both AMER and EMEA requires maintaining active coordinations before the ITU-R for each orbital position used, as well as simultaneously complying with the licensing requirements of the FCC, OFCOM, ARCEP, or other competent national authorities depending on the country of signal landing. This multiplicity of regulatory frameworks constrains the deployment timescales for new coverage areas and the capacity to respond to requests for additional capacity from operators or institutional clients. The efficient management of these regulatory and technical interdependencies constitutes a determining factor in the operational viability of transatlantic satellite services.
NASSAT - Network Satellite Systems