CPC H04B 7/0408 (2013.01) [H01Q 1/288 (2013.01); H01Q 5/28 (2015.01); H01Q 21/065 (2013.01); H01Q 25/002 (2013.01); H04B 7/043 (2013.01)] | 20 Claims |
1. A satellite communications system comprising:
at least one satellite;
an antenna structure deployed on the at least one satellite; and
radio hardware coupled to the antenna structure configured to provide for transmitting a first channel simultaneously with a second channel to a user terminal, wherein the first channel is transmitted using directive beams and the second channel is transmitted using a wide beam and wherein the directive beams are used to transmit data communication signals and the wide beam is used to transmit navigation signals, wherein first frequencies used to transmit the navigation signals are within guard bands within a frequency band used to transmit the data communication signals.
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