Filters for combined radiotelephone/GPS terminals
First Claim
1. A satellite radiotelephone system comprising:
- a space-based component that is configured to provide wireless radiotelephone communications using satellite radiotelephone frequencies;
a plurality of ancillary terrestrial components including a plurality of ancillary terrestrial component antennas that are configured to provide wireless radiotelephone communications using at least one of the satellite radiotelephone frequencies in a radiation pattern that increases radiation below the horizon compared to above the horizon; and
a plurality of radiotelephones that are configured to communicate with the space-based component and with the plurality of ancillary terrestrial components, the radiotelephones also including a GPS signal receiver and a GPS mode filter that is configured to suppress energy at and/or below (1575.42−
Δ
) MHz, where 0<
Δ
≦
16.42 MHz.
16 Assignments
0 Petitions
Accused Products
Abstract
A satellite radiotelephone system includes a space-based component, a plurality of ancillary terrestrial components, and a plurality of radiotelephones. The space-based component is configured to provide wireless radiotelephone communications using satellite radiotelephone frequencies. The plurality of ancillary terrestrial components include a plurality of ancillary terrestrial component antennas configured to provide wireless radiotelephone communications using at least one of the satellite radiotelephone frequencies in a radiation pattern that increases radiation below the horizon compared to above the horizon. The plurality of radiotelephones are configured to communicate with the space-based component and with the plurality of ancillary terrestrial components. Each radiotelephone also includes a GPS signal processor and a GPS mode filter that is configured to suppress energy at (1575.42−Δ) MHz, where 0<Δ≦16.42 MHz. Related radiotelephones and methods are also discussed.
195 Citations
89 Claims
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1. A satellite radiotelephone system comprising:
-
a space-based component that is configured to provide wireless radiotelephone communications using satellite radiotelephone frequencies; a plurality of ancillary terrestrial components including a plurality of ancillary terrestrial component antennas that are configured to provide wireless radiotelephone communications using at least one of the satellite radiotelephone frequencies in a radiation pattern that increases radiation below the horizon compared to above the horizon; and a plurality of radiotelephones that are configured to communicate with the space-based component and with the plurality of ancillary terrestrial components, the radiotelephones also including a GPS signal receiver and a GPS mode filter that is configured to suppress energy at and/or below (1575.42−
Δ
) MHz, where 0<
Δ
≦
16.42 MHz. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 40)
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14. A radiotelephone comprising:
-
a radio front end that is configured to provide wireless radiotelephone communications using radiotelephone frequencies, and that is configured to receive global positioning satellite (GPS) signals from a plurality of global positioning satellites; a signal processor that is configured to determine a measure of location of the radiotelephone using GPS signals received at the radio front end when providing GPS mode operations and that is configured to process communications that are received at and/or transmitted from the radio front end when providing wireless radiotelephone communications; and a GPS mode filter that is configured to filter GPS signals received at the radio front end before being provided to the signal processor, wherein the GPS mode filter is configured to suppress energy at and/or and below (1575.42−
Δ
) MHz, where 0<
Δ
≦
16.42 MHz. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method of providing radiotelephone communications at a radiotelephone comprising a radio front end that is configured to provide wireless radiotelephone communications using radiotelephone frequencies, and that is configured to receive global positioning satellite (GPS) signals from a plurality of Global positioning satellites, the method comprising:
-
during GPS mode operations, suppressing energy at and/or and below (1575.42−
Δ
) MHz for GPS signals received from the radio front end, where 0<
Δ
≦
16.42 MHz;during GPS mode operations, determining a measure of location of the radiotelephone using the GPS signals having suppressed energy at and/or and below (1575.42−
Δ
) MHz; andduring wireless radiotelephone communications, processing communications that are received at and/or transmitted from the radio front end. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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41. A satellite radiotelephone system comprising:
-
a space-based component that is configured to provide wireless radiotelephone communications using satellite radiotelephone frequencies; at least one ancillary terrestrial component including at least one antenna that is configured to provide wireless radiotelephone communications using satellite radiotelephone frequencies in a radiation pattern that increases a radiation level below the horizon compared to a radiation level above the horizon; and at least one radiotelephone that is configured to communicate with the space-based component and/or with the at least one ancillary terrestrial component, the at least one radiotelephone including a GPS signal processor and a GPS filter that is configured to selectively attenuate signal energy that is associated with Radio Frequencies (RF) at and/or below (1575.42−
Δ
) MHz, where 0<
Δ
≦
16.42 MHz. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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53. A radiotelephone comprising:
-
a radio front end that is configured to provide wireless radiotelephone communications using radiotelephone frequencies, and that is configured to receive global positioning satellite (GPS) signals from a plurality of global positioning satellites; a signal processor that is configured to determine a measure of location of the radiotelephone using GPS signals received at the radio front end when providing GPS mode operations and that is configured to process communications that are received at and/or transmitted from the radio front end when providing wireless radiotelephone communications; and a GPS filter that is configured to filter signals received at the radio front end before being provided to the signal processor, wherein the GPS filter is configured to selectively attenuate signal energy that is associated with Radio Frequencies (RF) at and below (1575.42−
Δ
) MHz, where 0<
Δ
≦
16.42 MHz. - View Dependent Claims (54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65)
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66. A method of providing radiotelephone communications and a measure of location at a radiotelephone comprising a radio front end that is configured to provide wireless radiotelephone communications using radiotelephone frequencies and receive global positioning satellite (GPS) signals from a plurality of global positioning satellites, the method comprising:
-
during GPS mode operations, selectively suppressing signal energy relating to Radio Frequencies (RF)at and below (1575.42−
Δ
) MHz, where 0<
Δ
≦
16.42 MHz;during GPS mode operations, determining a measure of location of the radiotelephone using the GPS signals having suppressed energy relating to Radio Frequencies (RF) at and below (1575.42−
Δ
) MHz; andduring wireless radiotelephone communications, processing communications that are received at and/or transmitted from the radio front end. - View Dependent Claims (67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77)
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78. A method of providing space-based and terrestrial wireless communications, the method comprising:
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configuring a space-based component to provide communications using satellite radiotelephone frequencies; configuring at least one ancillary terrestrial component including at least one antenna to provide wireless radiotelephone communications using satellite radiotelephone frequencies in a radiation pattern that increases a radiation level below the horizon compared to a radiation level above the horizon; and configuring at least one radiotelephone to communicate with the space-based component and/or with the at least one ancillary terrestrial component, the at least one radiotelephone including a GPS signal processor and a GPS filter that is configured to selectively attenuate signal energy that is associated with Radio Frequencies (RF) at and/or below (1575.42−
Δ
) MHz, where 0<
Δ
≦
16.42 MHz. - View Dependent Claims (79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89)
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Specification