Satellite/terrestrial wireless communications systems and methods using disparate channel separation codes
First Claim
1. A wireless communications system comprising an ancillary terrestrial component (ATC) that is associated with a space based component (SBC) and is configured to communicate with first radioterminals using first frequencies of a satellite frequency band while the SBC communicates with second radioterminals using second frequencies of the satellite frequency band, wherein the ATC is farther configured to communicate with the first radioterminals using an OFDM/OFDMA air interface protocol and a first set of channel separation codes that differs from a second set of channel separation codes that is used by the SBC to communicate with the second radioterminals and wherein the ATC uses a first controller that is autonomous and independent from a second controller that is used by the SBC.
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Accused Products
Abstract
A wireless communications system includes a space-based component (SBC) and an ancillary terrestrial component (ATC) configured to communicate with radioterminals using a common satellite service link frequency band and respective first and second different sets of channel separation codes. The first and second sets of channel separation codes may include, for example, respective sets of scrambling codes, respective sets of frequency assignment codes, respective sets of channel assignment codes, respective sets of sub-channel assignment codes and/or respective sets of spreading codes.
186 Citations
53 Claims
- 1. A wireless communications system comprising an ancillary terrestrial component (ATC) that is associated with a space based component (SBC) and is configured to communicate with first radioterminals using first frequencies of a satellite frequency band while the SBC communicates with second radioterminals using second frequencies of the satellite frequency band, wherein the ATC is farther configured to communicate with the first radioterminals using an OFDM/OFDMA air interface protocol and a first set of channel separation codes that differs from a second set of channel separation codes that is used by the SBC to communicate with the second radioterminals and wherein the ATC uses a first controller that is autonomous and independent from a second controller that is used by the SBC.
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17. A method of operating a wireless communications system comprising an ancillary terrestrial component (ATC) that is associated with a space based component (SBC), the method comprising:
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communicating between the ATC and first radioterminals using an OFDM/OFDMA air interface protocol and first frequencies of a satellite frequency band while the SBC communicates with second radioterminals using second frequencies of the satellite frequency band; communicating between the ATC and the first radioterminals using a first set of channel separation codes that differs from a second set of channel separation codes that is used by the SBC to communicate with the second radioterminals; and using by the ATC a first controller that is autonomous and independent from a second controller that is used by the SBC. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A radioterminal comprising:
a radio transceiver configured to communicate with a space-based component (SBC) of a mobile satellite communications system using first frequencies of a satellite frequency band and to communicate with an ancillary terrestrial component (ATC) of the mobile satellite communications system using second frequencies of the satellite frequency band, wherein the radio transceiver is further configured to use an OFDM/OFDMA air interface protocol to communicate with the ATC and respective different first and second channel separation codes to communicate with the SBC and the ATC and wherein the SBC and the ATC use respective first and second controllers that are configured to operate autonomously and independently therebetween. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
- 43. A space-based component (SBC) of a wireless communications system, the SBC configured to communicate with first radioterminals using first frequencies of a satellite frequency band, second frequencies of which are used by an ancillary terrestrial component (ATC) to communicate with second radioterminals using an OFDM/OFDMA air interface protocol, the SBC using a first set of channel separation codes to communicate with the first radioterminals that is different than a second set of channel separation codes used by the ATC to communicate with the second radioterminals, and wherein the SBC and the ATC use respective first and second controllers that are configured to operate autonomously and independently therebetween.
Specification