Time Division Duplex for Satellite Communications
Conference: PIMRC 2005 - 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications
09/11/2005 - 09/14/2005 at Berlin, Germany
Proceedings: PIMRC 2005
Pages: 5Language: englishTyp: PDFPersonal VDE Members are entitled to a 10% discount on this title
Hulbert, A. P. (Roke Manor Research Ltd., Romsey, England)
Satellite communications increasingly make use of on-board processing along with phased array technology to allow improved capacity. Conventional satellite operation uses frequency division duplex, requiring heavy duplexing filters for each of the array elements. If this could be eliminated then satellites with more beams and/or lower cost should be possible. This paper proposes a method for allowing satellites to operate time division duplex in spite of the very large round trip propagation delays.