Complementary ground component
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A complementary ground component is a terrestrial infill system for a mobile satellite system that uses terrestrial base stations to provide connectivity in weak signal areas such as urban areas. According to EU Decision 626/2008/EC:
- "complementary ground components" of mobile satellite systems shall mean ground based stations used at fixed locations, in order to improve the availability of the mobile satellite service in geographical areas within the footprint of the system's satellite(s), where communications with one or more space stations cannot be ensured with the required quality”
Such systems use the same frequencies assigned for space usage.
- Bill Ray (4 November 2008). "Ofcom tries to launch satellite plans again". The Register.
- "DECISION No 626/2008/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 30 June 2008 on the selection and authorisation of systems providing mobile satellite services (MSS)". Official Journal of the European Union. 30 June 2008. , page L 172/17, para 18
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