Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex mode
First Claim
1. A satellite radiotelephone system comprising:
- a space-based component that is configured to communicate with radiotelephones; and
an ancillary terrestrial network that is configured to transmit wireless communications directly to a radiotelephone over a downlink satellite radiotelephone frequency and to receive wireless communications directly from the radiotelephone over the downlink satellite radiotelephone frequency,wherein the ancillary terrestrial network is further configured to communicate with the radiotelephone in a time-division duplex mode, wherein a first time interval is used to transmit wireless communications directly to the radiotelephone over the downlink satellite radiotelephone frequency and wherein a second time interval, that does not overlap with the first time interval, is used to receive wireless communications directly from the radiotelephone over the downlink satellite radiotelephone frequency.
16 Assignments
0 Petitions
Accused Products
Abstract
A space-based component, such as a satellite, is configured to receive wireless communications from radiotelephones in a satellite footprint over an uplink satellite radiotelephone frequency, and to transmit wireless communications to the radiotelephones over a downlink radiotelephone frequency. An ancillary terrestrial network, that may include one or more ancillary terrestrial components, is configured to transmit wireless communications to, and receive wireless communications from, the radiotelephones over the downlink satellite radiotelephone frequency in a time-division duplex mode. By terrestrially transmitting and receiving wireless communications over the downlink satellite radiotelephone frequency in a time-division duplex mode, interference at the space-based component and/or at the gateway, by the ancillary terrestrial network and/or the radiotelephones due to terrestrial reuse of cellular satellite frequency spectrum, may be reduced or eliminated.
277 Citations
18 Claims
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1. A satellite radiotelephone system comprising:
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a space-based component that is configured to communicate with radiotelephones; and an ancillary terrestrial network that is configured to transmit wireless communications directly to a radiotelephone over a downlink satellite radiotelephone frequency and to receive wireless communications directly from the radiotelephone over the downlink satellite radiotelephone frequency, wherein the ancillary terrestrial network is further configured to communicate with the radiotelephone in a time-division duplex mode, wherein a first time interval is used to transmit wireless communications directly to the radiotelephone over the downlink satellite radiotelephone frequency and wherein a second time interval, that does not overlap with the first time interval, is used to receive wireless communications directly from the radiotelephone over the downlink satellite radiotelephone frequency. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An ancillary terrestrial component that is associated with a satellite radiotelephone system that includes a space-based component that is configured to communicate with radiotelephones, the ancillary terrestrial component comprising:
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an electronics system that is configured to transmit wireless communications directly to a radiotelephone over a downlink satellite radiotelephone frequency and to receive wireless communications directly from the radiotelephone over the downlink satellite radiotelephone frequency, wherein the ancillary terrestrial component is further configured to communicate with the radiotelephone in a time-division duplex mode, wherein a first time interval is used to transmit wireless communications directly to the radiotelephone over the downlink satellite radiotelephone frequency and wherein a second time interval, that does not overlap with the first time interval, is used to receive wireless communications directly from the radiotelephone over the downlink satellite radiotelephone frequency. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A satellite radiotelephone communications method comprising:
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communicating between a space-based component and radiotelephones; transmitting wireless communications directly from an ancillary terrestrial network to a radiotelephone over a downlink satellite radiotelephone frequency; and receiving wireless communications at the ancillary terrestrial network directly from the radiotelephone over the downlink satellite radiotelephone frequency, wherein said transmitting and receiving are based upon a time-division duplex mode, wherein a first time interval is used to transmit wireless communications from the ancillary terrestrial network directly to the radiotelephone over the downlink satellite radiotelephone frequency and wherein a second time interval, that does not overlap with the first time interval, is used to receive wireless communications at the ancillary terrestrial network directly from the radiotelephone over the downlink satellite radiotelephone frequency. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification