Staggered sectorization for terrestrial reuse of satellite frequencies
First Claim
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1. A satellite radiotelephone system comprising:
- a space-based component configured to provide communications using frequencies of a satellite frequency band; and
a plurality of ancillary terrestrial components configured to provide communications over a service region using at least one first frequency of the satellite frequency band in a staggered sectorization pattern, wherein the space-based component does not provide communications over the service region using the at least one first frequency and an aggregate power radiated by the plurality of ancillary terrestrial components at the at least one first frequency in any direction is less than a total power radiated by the plurality of ancillary terrestrial components at the at least one first frequency.
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Abstract
A satellite radiotelephone system can include a space-based component and a plurality of ancillary terrestrial components. The space-based component is configured to provide wireless radiotelephone communications over a satellite radiotelephone frequency band. The plurality of ancillary terrestrial components are configured to terrestrially reuse at least one of the satellite radiotelephone frequencies, at least some of the ancillary terrestrial components terrestrially reusing the at least one of the satellite radiotelephone frequencies in a staggered sectorization. Related methods are also discussed.
171 Citations
57 Claims
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1. A satellite radiotelephone system comprising:
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a space-based component configured to provide communications using frequencies of a satellite frequency band; and
a plurality of ancillary terrestrial components configured to provide communications over a service region using at least one first frequency of the satellite frequency band in a staggered sectorization pattern, wherein the space-based component does not provide communications over the service region using the at least one first frequency and an aggregate power radiated by the plurality of ancillary terrestrial components at the at least one first frequency in any direction is less than a total power radiated by the plurality of ancillary terrestrial components at the at least one first frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A satellite radiotelephone system comprising:
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a space-based component that is configured to provide communications using frequencies of a satellite frequency band; and
a plurality of ancillary terrestrial components comprising a plurality of frequency reuse clusters, wherein a first frequency reuse cluster transmits at least one first frequency of the satellite frequency band in a first direction and a second frequency reuse cluster transmits the at least one first frequency of the satellite frequency band in a second direction, wherein the space-based component does not provide communications over a service region including the plurality of ancillary terrestrial components using the at least one first frequency and an aggregate power radiated by the plurality of ancillary terrestrial components at the at least one first frequency in any direction is less than a total power radiated by the plurality of ancillary terrestrial components at the at least one first frequency. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method of operating a satellite radiotelephone system comprising:
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providing communications from a space-based component using frequencies of a satellite frequency band; and
providing communications from a plurality of ancillary terrestrial components over a service region using at least one first frequency of the satellite frequency band in a staggered sectorization pattern, wherein the space-based component does not provide communications over the service region using the at least one first frequency and an aggregate power radiated by the plurality of ancillary terrestrial components at the at least one first frequency in any direction is less than a total power radiated by the plurality of ancillary terrestrial components at the at least one first frequency. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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27. A method of operating a satellite radiotelephone system comprising:
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providing communications from a space-based component using frequencies of a satellite frequency band; and
providing communications from a plurality of ancillary terrestrial components comprising a plurality of frequency reuse clusters, wherein a first frequency reuse cluster transmits at least one first frequency of the satellite frequency band in a first direction and a second frequency reuse cluster transmits the at least one first frequency of the satellite frequency band in a second direction, wherein the space-based component does not provide communications over a service region including the plurality of ancillary terrestrial components using the at least one first frequency and an aggregate power radiated by the plurality of ancillary terrestrial components at the at least one first frequency in any direction is less than a total power radiated by the plurality of ancillary terrestrial components at the at least one first frequency. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34)
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35. A radiotelephone system comprising:
a plurality of terrestrial components comprising a plurality of frequency reuse clusters, at least one terrestrial component of each frequency reuse cluster comprising a plurality of directional sectors, wherein at least a first and second frequency reuse clusters provide communications by transmitting at least one first frequency of a satellite frequency band in respective first and second directions, a space-based component provides communications using frequencies of the satellite frequency band and refrains from providing communications over a service region that includes the plurality of terrestrial components using the at least one first frequency and wherein an aggregate power radiated by the plurality of terrestrial components at the at least one first frequency in any direction is less than a total power radiated by the plurality of terrestrial components at the at least one first frequency. - View Dependent Claims (36, 37, 38, 39, 40)
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41. A method of operating a radiotelephone system comprising:
using a radiotelephone frequency by a plurality of terrestrial components to provide radiotelephone communications wherein the plurality of terrestrial components comprise a plurality of frequency reuse clusters with at least one terrestrial component of each frequency reuse cluster transmitting from a plurality of directional sectors and wherein a first frequency reuse cluster transmits the radiotelephone frequency in a first direction and a second frequency reuse cluster transmits the radiotelephone frequency in a second direction that is randomly oriented relative to the first. - View Dependent Claims (42, 43, 44, 45, 46)
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47. A method of providing communications comprising:
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using a radiotelephone frequency by a plurality of terrestrial components to provide radiotelephone communications for a plurality of terminals; and
randomizing use of the radiotelephone frequency by the plurality of terrestrial components. - View Dependent Claims (48, 49, 50, 51)
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52. A communications system comprising:
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means for using a radiotelephone frequency among a plurality of terrestrial components to provide radiotelephone communications for a plurality of mobile terminals; and
means for randomizing use of the radiotelephone frequency among the plurality of terrestrial components. - View Dependent Claims (53, 54, 55, 56, 57)
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Specification