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Wireless communications systems and methods using satellite-linked remote terminal interface subsystems

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USRE42261E1
USRE42261E1 US11431160 US43116006A USRE42261E US RE42261 E1 USRE42261 E1 US RE42261E1 US 11431160 US11431160 US 11431160 US 43116006 A US43116006 A US 43116006A US RE42261 E USRE42261 E US RE42261E
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communications
satellite
terrestrial
wireless
radio
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Peter D. Karabinis
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ATC Technologies LLC
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ATC Technologies LLC
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18563Arrangements for interconnecting multiple systems

Abstract

A satellite gateway is coupled to a communications network and is operative to communicate with a communications satellite. A terrestrial terminal interface subsystem is operative to communicate with the satellite gateway via the communications satellite using a first radio interface and to communicate with terminals over a geographic area using a second radio interface. The communications network may be a wireless communications network, and the satellite gateway is configured to communicate with a base station controller of the wireless communications network, such that the terrestrial terminal interface subsystem may provide one or more satellite-linked terrestrial base stations.

Description

Notice: More than one reissue application has been filed for the reissue of U.S. Pat. No. 6,856,787. The reissue applications are application Ser. No. 11/431,160 (the present application), application Ser. No. 12/266,713 (a first divisional of the present application) and application Ser. No. 12/329,137 (a second divisional of the present application).

CROSS-REFERENCE TO RELATED APPLICATION

The present application claims priority to U.S. Provisional Application Ser. No. 60/356,264 entitled “WIRELESS COMMUNICATIONS SYSTEMS AND METHODS USING SATELLITE-LINKED REMOTE TERMINAL INTERFACE SUBSYSTEMS,” filed Feb. 12, 2002, the disclosure of which is incorporated herein by reference in its entirety.

BACKGROUND OF THE INVENTION

The present invention relates to wireless communications apparatus and methods, and more particularly, to wireless communications system and methods using satellite and terrestrial components.

FIG. 1 illustrates a conventional terrestrial wireless communications system 100, and more particularly, a system conforming to the GSM standards. The system 100 includes a mobile switching center (MSC) 110, a base station controller (BSC) 120, and at least one base transceiver station (BTS) 130. The BTS 130 includes radio transceivers that communicate with cellular terminals 50, while the BSC 120 manages radio resources for one or more BTSs and provides a connection between the BTSs and the MSC 110. The MSC 110 typically acts like a telephone switching node, and typically provides additional functions related to registration and mobility management for the cellular terminals 50. The MSC 110 is typically coupled to a public switched telephone network (PSTN) 10, which provides communications links between the cellular terminals 50 served by the wireless system 100 and other terminals (e.g., landline telephones). It will be appreciated that other wireless communications systems may provide similar functionality, but may, for example, use other groupings of functions referred to by different nomenclature.

Cellular satellite communications systems and methods are also widely used to provide wireless communications. Cellular satellite communications systems and methods generally employ at least one space-based component, such as one or more satellites that are configured to wirelessly communicate with a plurality of radiotelephones or other types of cellular terminals. The overall design and operation of cellular satellite communications systems and methods are well known to those having skill in the art, and need not be described further herein.

Hybrids of satellite and terrestrial systems may also be used. For example, as is well known to those having skill in the art, terrestrial networks can enhance cellular satellite communications system availability, efficiency and/or economic viability by terrestrially reusing at least some of the frequency bands that are allocated to cellular satellite communications systems. In particular, it is known that it may be difficult for cellular satellite communications systems to reliably serve densely populated areas, because the satellite signal may be blocked by high-rise structures and/or may not penetrate into buildings. As a result, the satellite spectrum may be underutilized or unutilized in such areas. The use of terrestrial retransmission can reduce or eliminate this problem.

Moreover, the capacity of the overall system can be increased significantly by the introduction of terrestrial retransmission, since terrestrial frequency reuse can be much denser than that of a satellite-only system. In fact, capacity can be enhanced where it may be mostly needed, i.e., densely populated urban/industrial/commercial areas. As a result, the overall system can become much more economically viable, as it may be able to serve a much larger subscriber base. One example of terrestrial reuse of satellite frequencies is described in U.S. Pat. No. 5,937,332 to the present inventor Karabinis entitled Satellite Telecommunications Repeaters and Retransmission Methods.

SUMMARY OF THE INVENTION

According to some embodiments of the present invention, a wireless communications system includes a satellite gateway coupled to a communications network and operative to communicate with a communications satellite. The system further includes a terrestrial terminal interface subsystem operative to communicate with the satellite gateway via the communications satellite using a first radio interface and to communicate with wireless terminals over a geographic area using a second radio interface. For example, in some embodiments, the communications network comprises a wireless communications network, and the satellite gateway is configured to communicate with a base station controller of the wireless communications network, such that the terrestrial terminal interface subsystem may provide one or more satellite-linked terrestrial base stations.

In some embodiments, the terrestrial terminal interface subsystem comprises an interface converter operative to convert between the first and second radio interfaces. The interface converter may be operative to transfer information from a plurality of terrestrial wireless communications channels to a lesser number of satellite communications channels. The interface converter may also be operative to transfer information from a single satellite communication channel to a plurality of terrestrial wireless communications channels.

According to further embodiments of the present invention, the terrestrial terminal interface subsystem includes a satellite radio antenna and a terrestrial radio antenna co-located at a single terrestrial base station. The terrestrial terminal interface subsystem may also comprise a plurality of terrestrial base stations located at respective ones of a plurality of geographically distributed sites and served by a single satellite link.

In yet additional embodiments, the communications satellite is further operative to communicate with wireless terrestrial terminals without use of the terrestrial terminal interface subsystem. In particular, the terrestrial terminal interface subsystem or the satellite or both may communicate with wireless terminals. For example, in some embodiments, the communications satellite is operative to receive information intended for wireless terminals from the satellite gateway and to convey the received information to the wireless terminals without use of the terrestrial terminal interface subsystem, while the terrestrial terminal interface subsystem is operative to receive information from wireless terminals and to convey the received information to the communications network without use of the communications satellite. In this manner, for example, “receive only” terrestrial base stations may be used to provide uplinks from wireless terminals to a communications network, while downlinks are provided directly from the satellite to the wireless terminals. In other embodiments, the communications satellite is operative to receive information from wireless terminals without use of the terrestrial terminal interface subsystem and to convey the received information to the satellite gateway, while the terrestrial terminal interface subsystem is operative to receive information intended for wireless terminals from the communications satellite and to convey the received information to terrestrial terminals. In this manner, for example, “transmit-only” terrestrial base stations may be used to provide downlinks from a communications network to wireless terminals, while uplinks may be provided directly from the wireless terminals to the satellite.

According to some method embodiments of the present invention, communications between a communications network and a plurality of wireless terminals served by a terrestrial base station may be provided by conveying terminal communications between the communications network and the terrestrial base station via a communications satellite. The communication via the satellite can be bidirectional or unidirectional.

The present invention may be embodied in variety of forms, including, but not limited to, wireless communications systems, components of wireless communications systems, combinations of components of wireless communications systems, and wireless communications methods. For example, the present invention may be embodied as earth-based components and combinations thereof configured to interoperate with space-based components, as spaced-based components, and as combinations of earth-based and space-based components.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates a conventional terrestrial wireless communications system.

FIG. 2 is a schematic diagram illustrating a wireless communications systems and methods according to some embodiments of the present invention.

FIG. 3 is a schematic diagram illustrating a wireless communications system and methods according to further embodiments of the present invention.

FIG. 4 is a schematic diagram illustrating a terrestrial terminal interface subsystem and methods according to some embodiments of the present invention.

FIG. 5 is a schematic diagram illustrating a wireless communications system and methods according to further embodiments of the present invention.

FIG. 6 is a schematic diagram illustrating a wireless communications system and methods according to still further embodiments of the present invention.

FIG. 7 is a schematic diagram illustrating a wireless communications system and methods according to additional embodiments of the present invention.

DETAILED DESCRIPTION

The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which typical embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like numbers refer to like elements throughout.

As used herein, the term “cellular terminal” refers to wireless terminals including, but not limited to: radiotelephone terminals (“cell phones”) with or without a multi-line display; Personal Communications System (PCS) terminals that may combine a radiotelephone with data processing, facsimile and/or data communications capabilities; Personal Digital Assistants (PDA) that can include a radio frequency transceiver and a pager, Internet/intranet access, Web browser, organizer, calendar and/or a global positioning system (GPS) receiver; and/or conventional laptop and/or palmtop computers or other appliances, which include a radio frequency transceiver. These devices may be capable of wireless voice and/or data communications.

FIG. 2 conceptually illustrates a wireless communications system 200 according to embodiments of the present invention. The system 200 includes a satellite gateway 220 that is coupled to a communications network 210 (which may be a portion of the system 200 or an external network), which may include, but is not limited to, wireless network control components, such as BSCs and MSCs, and other gateways similar to the gateway 220. The system 200 further includes one or more remote terrestrial terminal interface subsystems 240 that communicate with the gateway 220 via a satellite 230. In particular, the terrestrial terminal interface subsystem 240 provides communications between cellular terminals 60 served by the terrestrial terminal interface subsystem 240 and the other portions 210 of the communications system 200 via the satellite 230 and the gateway 220.

As shown, the terrestrial terminal interface subsystem 240 includes a satellite antenna 241 and a terrestrial antenna 243 that are connected to an interface converter 242. The interface converter 242 is configured to receive information from cellular terminals 60 according to a first radio interface and to transmit the received information to the satellite 230 according to a second radio interface, and to receive information from the satellite 230 according to the second radio interface and to transmit the received information to the cellular terminals 60 according to the first radio interface. For example, the first radio interface may conform to a conventional standard, such as a GSM standard that uses Gaussian minimum shift keying (GMSK) modulation. The second radio interface may support a higher data rate using, for example, M-ary quadrature amplitude modulation (QAM), such that information received from or intended for cellular terminals 60 may be “concentrated” for transmission over the satellite link. In other embodiments, the first and second radio interfaces may be the same or substantially similar.

It will be appreciated that the interface converter 242 may include a variety of different components. For example, in embodiments described below with reference to FIGS. 3 and 4, the interface converter may be positioned at a remote base station and may include components to convert signals received over the satellite link into radio signals for transmission to cellular terminals, as well as components for performing complementary conversion of signals received from cellular terminals. In embodiments described below with reference to FIG. 5, the interface converter 242 may comprise components distributed among a remote BSC and base stations connected thereto. In such embodiments, the interface converter 242 may include, for example, components configured to convert between the satellite link signaling format and, for example, landline signaling formats used to communicate between the BSC and the base stations, as well as components for converting between the signaling format used for the links between the BSC and the base stations and the radio signaling format used to communicate with cellular terminals.

As also shown in FIG. 2, the remote terrestrial terminal interface subsystem 240 may serve as part of an ancillary terrestrial component of the wireless communications system 200, e.g., may function as a base station of an ancillary terrestrial network (ATN) of a satellite mobile communications system in a manner similar to that of the terrestrial base stations described in a United States Provisional Patent Application entitled “SYSTEMS AND METHODS FOR TERRESTRIAL REUSE OF MOBILE SATELLITE SPECTRUM,” U.S. Pat. No. 60/322,240, filed Sep. 14, 2001, and U.S. Patent Application entitled “SYSTEMS AND METHODS FOR TERRESTRIAL RE-USE OF MOBILE SATELLITE SPECTRUM,” U.S. Ser. No. 10/074,097, filed Feb. 12, 2002, the disclosure of each of which is incorporated herein by reference in its entirety. In particular, cellular terminals 60 may be operative to communicate with the system 200 directly through the satellite 230, or may indirectly communicate with the system 200 via the remote terrestrial terminal interface subsystem 240. It will be understood, however, that the present invention is also applicable to systems and methods in which communications between cellular terminals 60 and the satellite 230 are limited to communications via terrestrial terminal interface subsystems such as the remote terrestrial terminal interface subsystem 240, i.e., without direct communication between the cellular terminals 60 and the satellite 230.

FIG. 3 illustrates a “repeater” configuration for a wireless communications system 300 according to further embodiments of the present invention. The system 300 includes an MSC 312 and a BSC 314 that communicate with a remote terrestrial terminal interface subsystem, here a remote terrestrial base station 340, via a “repeater” including a gateway 320 and a satellite 330. The remote terrestrial base station 340 includes a first concentrator/deconcentrator 342 that sends and receives signals to and from the satellite 330 via a satellite antenna 341 over, for example, an L-band satellite link using, for example, M-ary quadrature amplitude modulation (QAM). The first concentrator/deconcentrator 342 converts signals received over the satellite link to, for example, GSM-format signals transmitted to cellular terminals via a terrestrial antenna 343 using GMSK modulation, and converts GSM format signals from the cellular terminals to M-ary QAM signals that are transmitted to the satellite 330. The gateway 320 includes a second concentrator/deconcentrator 322 that performs conversion functions complementary to those of the first concentrator/deconcentrator 342.

It will be appreciated that the satellite link through the satellite 330 may generally support a higher data rate than radio links to individual cellular terminals, due to, for example, a less obstructive radio signal propagation environment and/or less interference and/or higher available transmit power. The concentrator/deconcentrator 342, 322 takes advantage of this higher data rate capability by combining information received from or intended for terminals in a signal formatted according to a higher data rate signaling format for transfer through the satellite link.

FIG. 4 illustrates a remote terrestrial base station 400 that may be used with a wireless communication system, such as the communications system 300 of FIG. 3, according to further embodiments of the present invention. The base station 400 includes a satellite antenna 401 and a terrestrial antenna 402. Signals received from a satellite 80 via the satellite antenna 401 are processed by a bandpass filter 405 and a low noise amplifier (LNA) 410. The signal produced by the LNA 410 is processed by a demodulator & regenerator component 415 to recover information in a format, e.g., a bitstream or other datastream, suitable for remodulation and transmission to a cellular terminal 70. The demodulator & regenerator component 415 may, for example, produce decoded datastreams that correspond to GSM carriers that are to be transmitted from the terrestrial antenna 402. As shown, the demodulator & regenerator component 415 may be operatively associated with an interference reducer, such as a decision feedback canceller 420, that cancels interference in the signals received by the satellite antenna 401, e.g., interference generated by transmissions from the terrestrial antenna 402. For example, an interference reducer along the lines described in the aforementioned U.S. Ser. No. 60/322,240 and U.S. Ser. No. 10/074,097 may be used.

The information recovered from the demodulator & regenerator component 415 may then be reformatted and remodulated by a modulator component 425. The remodulated signal is then filtered and amplified by a filter 430 and a power amplifier 435 to produce a signal for transmission to the cellular terminal 70 via the terrestrial antenna 402. Power information obtained by the demodulator & regenerator component 415 may be used by a modulator component 475 to control the power of a signal transmitted to the satellite 80.

Signals received from the cellular terminal 70 via the terrestrial antenna 402 are processed by a bandpass filter 455 and an LNA 460. The signal produced by the LNA 460 is processed by a demodulator & regenerator component 465 to recover information in a format suitable for remodulation and transmission to the satellite 80. The demodulator & regenerator component 465 may, for example, produce respective datastreams that correspond to respective GSM carriers received from the terrestrial antenna 402. As shown, the demodulator & regenerator component 465 may be operatively associated with an interference reducer, such as a decision feedback canceller 470, that cancels interference in the signals received by the terrestrial antenna 402, e.g., interference generated by transmissions from the satellite antenna 401. For example, an interference reducer along the lines described in the aforementioned U.S. Ser. No. 60/322,240 and U.S. Ser. No. 10/074,097 may be used.

The information recovered from the demodulator & regenerator component 465 is remodulated in a modulator component 475, producing a remodulated signal corresponding to the multiple GSM carriers. This signal is then filtered and amplified by a filter 480 and a power amplifier 485 to produce a signal for transmission to the satellite 80 via the satellite antenna 401. As described above with reference to FIG. 3, the signal may be conveyed via the satellite 80 to a gateway, which may include a complementary radio interface conversion architecture. Power information obtained by the demodulator & regenerator component 465 may be used by the modulator component 425 to control the power of the signal transmitted to the cellular terminal 70.

FIG. 5 illustrates an alternative configuration for a wireless communications and methods system 500 according to further embodiments of the present invention. The system 500 includes an MSC 510 that is linked via a gateway 520 and a satellite 530 to a remote terrestrial terminal interface subsystem, here shown as including a remote terrestrial base station controller 540 connected to base stations 550. The remote BSC 540 is operative to control and communicate cellular terminal information with terrestrial base stations 550. The remote BSC 540 and the gateway 520 include first and second interface converters 542, 522 that provide appropriate conversion between the signaling format(s) used by the MSC 510 and base stations 550 and the signaling format used by the satellite 530. For example, the first and second interface converters 542, 522 may comprise respective concentrator/deconcentrator components.

It will be appreciated that the embodiments of FIGS. 3-5 are provided as examples of possible system and method configurations, and that other configurations also fall within the scope of the invention. In particular, it will be understood that wireless network functionality described above may be distributed in other ways among network components such as satellites, BSCs, MSCs, and base stations.

FIG. 6 illustrates a wireless communications system 600 and methods according to still further aspects of the present invention. The system 600 includes one or more receive-only terrestrial base stations 620 that receive information from terminals 90 over return service links. Information received by the base station 620 is conveyed to a BSC 610 using, for example, landline and/or radio links (e.g., microwave or satellite links). Forward service links to the terminals 90 are provided via a satellite 640 and a satellite gateway 630 that are linked to the BSC 610. The forward service links and the return service links to and from the terminals 90 may use the same frequency bands and/or signaling protocols (e.g., GSM data format with GMSK modulation), or may use respective different frequency bands and/or signaling protocols. It will be appreciated that embodiments of the present invention may use a structure complementary to that of FIG. 6. For example, transmit-only base stations fed by conventional landlines (e.g., from a BSC) could be used to provide downlinks to terminals, while uplinks from terminals are provided via a communications satellite.

FIG. 7 illustrates another “repeater” configuration for a wireless communications system 700 according to further embodiments of the present invention. The system 700 includes an MSC 712 and a BSC 714 that communicates with a remote terrestrial terminal interface subsystem, here including a remote transmit-only terrestrial base station 740, via a repeater including a gateway 720 and a satellite 730. The remote terrestrial transmit-only base station 740 includes a deconcentrator 742 that receives signals from the satellite 730 and converts the signals received over the satellite link to, for example, GSM-format signals transmitted to cellular terminals 95. The gateway 720 includes a concentrator 722 that performs conversion functions complementary to those of the deconcentrator 742. The BSC 714 is also connected to one or more receive-only base stations 750 that receive signals from terminals 95 and convey information therein to the BSC 714 using, for example, conventional cable, fiber or terrestrial microwave links. A combination of the terrestrial transmit-only base station 740 and the receive-only base station 750 may be viewed as forming a satellite-linked terrestrial terminal interface subsystem.

In the drawings and foregoing description thereof, there have been disclosed exemplary embodiments of the invention. Terms employed in the description are used in a generic and descriptive sense and not for purposes of limitation, the scope of the invention being set forth in the following claims.

Claims (152)

1. A wireless communications system, comprising:
a satellite gateway coupled to a communications network and operative to communicate with a mobile communications satellite; and
a terrestrial terminal interface subsystem operative to communicate with the satellite gateway via the mobile communications satellite using a first radio interface over a first frequency band and to communicate with wireless terminal over a geographic area terminals using a second radio interface over substantially the first frequency band,
wherein the terminal interface subsystem comprises an interface converter operative to convert between the first and second radio interfaces; and
wherein the interface converter is operative to transfer information from a plurality of wireless communications channels to a lesser number of satellite communications channels.
2. A system according to claim 1, wherein the first and second radio interfaces are different.
3. A system according to claim 1, wherein the first and second radio interfaces are the same.
4. A system according to claim 1, further comprising the mobile communications satellite.
5. A system according to claim 1, wherein the communications network comprises a wireless communications network, and wherein the satellite gateway is configured to communicate with a base station controller of the wireless communications network.
6. A system according to claim 1, wherein the terrestrial terminal interface subsystem comprises an interface converter operative to convert between the first and second radio interfaces.
7. A system according to claim 6, wherein the interface converter is operative to transfer information from a plurality of terrestrial wireless communications channels to a lesser number of satellite communications channels.
8. A system according to claim 7 1, wherein the interface converter is operative to transfer information from a single satellite communication channel to a plurality of terrestrial wireless communications channels.
9. A system according to claim 6 1, wherein the interface converter provides unidirectional communications.
10. A system according to claim 6 1, wherein the interface converter provides bidirectional communications.
11. A system according to claim 1, wherein the terrestrial terminal interface subsystem includes a satellite radio antenna and a terrestrial wireless communications radio antenna co-located at a single terrestrial base station.
12. A system according to claim 1, wherein the terrestrial terminal interface subsystem includes a satellite radio antenna and a terrestrial wireless communications radio antenna located at geographically separate sites locations.
13. A system according to claim 1, wherein the terrestrial terminal interface subsystem comprises a plurality of terrestrial base stations located at respective ones of a plurality of geographically distributed sites locations.
14. A system according to claim 1 4, wherein the mobile communications satellite is further operative to communicate with terrestrial terminals without use of the terrestrial terminal interface subsystem.
15. A system according to claim 1 4:
wherein the mobile communications satellite is operative to receive information intended for wireless terminals from the satellite gateway and to convey the received information to the wireless terminals without use of the terrestrial terminal interface subsystem; and
wherein the terrestrial terminal interface subsystem is operative to receive information from wireless terminals and to convey the received information to the communications network without use of the mobile communications satellite.
16. A system according to claim 1 4:
wherein the mobile communications satellite is operative to receive information from wireless terminals without use of the terrestrial terminal interface subsystem and to convey the received information to the satellite gateway; and
wherein the terrestrial terminal interface subsystem is operative receive information intended for wireless terminals from the mobile communications satellite and to convey the received information to terrestrial wireless terminals.
17. A system according to claim 1,
wherein the terrestrial terminal interface subsystem is operative to receive information intended for wireless terminals from the mobile communications satellite and to convey the received information to terrestrial wireless terminals; and
wherein the terrestrial terminal interface subsystem is operative to receive information from wireless terminals and to convey the received information to the communications network without use of the mobile communications satellite.
18. A system according to claim 1, wherein the terrestrial terminal interface subsystem is operative to control transmission power for of signals transmitted to the mobile communication satellite responsive to signals received from the mobile communication satellite.
19. A system according to claim 1, wherein the terrestrial terminal interface subsystem is operative to control transmission power for of signals transmitted to wireless terminal terminals responsive to signals received from wireless terminals.
20. A system according to claim 1, wherein the terrestrial terminal interface subsystem comprises:
a satellite radio, antenna;
a first low-noise low noise amplifier coupled to the satellite radio antenna;
a first demodulation and regeneration unit having an input coupled to an output of the first low noise amplifier;
a first modulator having an input coupled to an output of the first demodulation and regeneration unit;
a first power amplifier having an input coupled to an output of the first modulator; and
a terrestrial wireless communications radio antenna coupled to the output of the first power amplifier.
21. A system according to claim 20, further comprising a first interference reducer coupled to the first demodulation and regeneration unit.
22. A system according to claim 20, wherein the terrestrial terminal interface subsystem further comprises:
a second low noise amplifier coupled to the terrestrial wireless communications radio antenna;
a second demodulation and regeneration unit having an input coupled to an output of the second low noise amplifier;
a second modulator having an input coupled to an output of the second demodulation and regeneration unit; and
a second power amplifier having an input coupled to an output of the second modulator and an output coupled to the satellite radio antenna.
23. A system according to claim 22, further comprising a second interference reducer coupled to the second demodulation and regeneration unit.
24. A system according to claim 22, wherein the second modulator is operative to control power of a signal transmitted from the satellite radio antenna responsive to the first demodulation and regeneration unit.
25. A system according to claim 22, wherein the first modulator is operative to control power of a signal transmitted from the terrestrial wireless communications radio antenna responsive to the second demodulation and regeneration unit.
26. A system according to claim 1, wherein the terrestrial terminal interface subsystem comprises:
a terrestrial wireless communications radio antenna;
a low noise amplifier coupled to the terrestrial wireless communications radio antenna;
a demodulation and regeneration unit having an input coupled to an output of the low noise amplifier;
a modulator having an input coupled to an output of the demodulation and regeneration unit;
a power amplifier having an input coupled to an output of the second modulator; and
a satellite radio antenna coupled to an output of the power amplifier.
27. A system according to claim 1 further comprising a wireless terminal.
28. The system according to claim 1, wherein the frequency band is the L band.
29. A terrestrial terminal interface subsystem for a wireless communications system, the subsystem comprising:
a satellite radio antenna;
a terrestrial wireless communications radio antenna; and
an interface converter operative to communicate with a mobile communications satellite via the satellite radio antenna using a first radio interface over a first frequency band and to communicate with wireless terminals over a geographic area via the terrestrial wireless communications radio antenna using a second radio interface over substantially the same first frequency band,
wherein the interface converter is operative to transfer information from a single satellite communication channel to a plurality of wireless communications channels.
30. A subsystem according to claim 29, A terminal interface subsystem for a wireless communications system, the subsystem comprising:
a satellite radio antenna;
a wireless communications radio antenna; and
an interface converter operative to communicate with a mobile communications satellite via the satellite radio antenna using a first radio interface over a first frequency band and to communicate with wireless terminals via the wireless communications radio antenna using a second radio interface over substantially the same first frequency band,
wherein the interface converter is operative to transfer information from a plurality of terrestrial wireless terminal communications channels to a lesser number of satellite communications channels.
31. A subsystem according to claim 29, wherein the interface converter is operative to transfer information from a single satellite communication channel to a plurality of terrestrial wireless communications channels.
32. A subsystem according to claim 29, wherein the terrestrial wireless communications radio antenna, the satellite radio antenna, and the interface converter are co-located at a single terrestrial base station.
33. A subsystem according to claim 29, wherein the terrestrial wireless communications radio antenna and the satellite radio antenna are positioned at geographically separate locations.
34. A subsystem according to claim 29, wherein the terrestrial wireless communications radio antenna comprises a plurality of terrestrial radio antennas located at respective ones of a plurality of second geographically distributed second terrestrial sites locations.
35. A subsystem according to claim 29, wherein the interface converter provides unidirectional communications.
36. A subsystem according to claim 29, wherein the interface converter provides bidirectional communications.
37. A subsystem according to claim 29, comprising:
a first low-noise low noise amplifier coupled to the satellite radio antenna;
a first demodulation and regeneration unit having an input coupled to an output of the first low noise amplifier;
a first modulator having an input coupled to an output of the first demodulation and regeneration unit;
a first power amplifier having an input coupled to an output of the first modulator and an output coupled to the terrestrial wireless communications radio antenna.
38. A subsystem according to claim 37, further comprising a first interference reducer coupled to the first demodulation and regeneration unit.
39. A subsystem according to claim 37, comprising:
a second low noise amplifier coupled to the terrestrial wireless communications radio antenna;
a second demodulation and regeneration unit having an input coupled to an output of the second low noise amplifier;
a second modulator having an input coupled to an output of the second demodulation and regeneration unit; and
a second power amplifier having an input coupled to an output of the second modulator and an output coupled to the satellite radio antenna.
40. A subsystem according to claim 39, further comprising a second interference reducer coupled to the second demodulation and regeneration unit.
41. A subsystem according to claim 39, wherein the second modulator is operative to control power of a signal transmitted from the satellite radio antenna responsive to the first demodulation and regeneration unit.
42. A subsystem according to claim 37 39, wherein the first modulator is operative to control power of a signal transmitted from the terrestrial wireless communications radio antenna responsive to the second demodulation and regeneration unit.
43. A subsystem according to claim 29, wherein the terrestrial terminal interface subsystem further comprises:
a lownoise low noise amplifier coupled to the terrestrial wireless communications radio antenna;
a demodulation and regeneration unit having an input coupled to an output of the low noise amplifier;
a modulator having an input coupled to an output of the demodulation and regeneration unit; and
a power amplifier having an input coupled to an output of the second modulator and an output coupled to the satellite radio antenna.
44. An apparatus, comprising:
a satellite gateway operative to communicate with a communications network and to communicate via a mobile communications satellite with a terrestrial terminal interface system that serves wireless terminals in a geographic area , wherein communication between the terrestrial terminal interface system and the mobile communications satellite, and communication between the terrestrial terminal interface system and wireless terminals occurs occur over substantially the same frequency band, and wherein the terminal interface system is operative to transfer information from a plurality of wireless communications channels to a lesser number of satellite communications channels.
45. An apparatus according to claim 44, wherein the communications network comprises a wireless communications network, and wherein the satellite gateway is configured to communicate with a base station controller of the wireless communications network.
46. An apparatus, comprising:
a mobile communications satellite operative to convey terminal communications between an earth-based communications network and a terrestrial wireless base station that communicates with wireless terminals in a geographic area , wherein communication between the terrestrial wireless base station and the mobile communications satellite, and communication between the wireless base station and the wireless terminals occurs occur over substantially the same frequency band, and wherein the wireless base station is operative to transfer information from a plurality of wireless communications channels to a lesser number of satellite communications channels.
47. An apparatus according to claim 46, wherein the mobile communications satellite is further operative to communicate with wireless terminals without use of the terrestrial wireless base station.
48. A method of providing communications between a communications network and a plurality of wireless terminals served by a terrestrial base station, the method comprising: conveying terminal communications between the communications network and the terrestrial base station via a mobile communications satellite, wherein communication between the terrestrial base station and the mobile communications satellite, and communication between the terrestrial base station and wireless terminals served by the terrestrial base station occurs occur over substantially the same frequency band, wherein conveying terminal communications between the communications network and the base station via a mobile communications satellite comprises transferring information from a plurality of wireless communications channels to a lesser number of satellite communications channels.
49. A method according to claim 48, wherein conveying terminal communications between the communications network and the terrestrial base station via a mobile communications satellite comprises:
conveying a first radio signal from the mobile communications satellite to earth the base station using a first radio interface; and
conveying a second radio signal from the first radio signal from the terrestrial base station to a wireless terminal using a second radio interface, the second radio signal including information from the first radio signal.
50. A method according to claim 49, wherein the first and second radio interfaces are the same.
51. A method according to claim 48, wherein conveying terminal communications between the communications network and the terrestrial base station via a mobile communications satellite comprises:
conveying a first radio signal from a wireless terminal to the terrestrial base station using a first radio interface; and
conveying a second radio signal from earth the base station to the mobile communications satellite using a second radio interface, the second radio signal including information from the first radio signal.
52. A method according to claim 51, wherein the first and second radio interfaces are the same.
53. A method according to claim 48, wherein conveying terminal communications between the communications network and the terrestrial base station via a mobile communications satellite comprises conveying the terminal communications via a satellite antenna co-located with the terrestrial base station.
54. A method according to claim 48, wherein conveying terminal communications between the communications network and the terrestrial base station via a mobile communications satellite comprises conveying terminal communications between the communications network and a plurality of terrestrial base stations via a single satellite link .
55. A method according to claim 48, wherein the communications network comprises a wireless communications network, and wherein conveying terminal communications between the communications network and the terrestrial base station via a mobile communications satellite comprises conveying the terminal communications between the mobile communications satellite and a satellite gateway coupled to a base station controller of the wireless communications network.
56. A method according to claim 48, wherein conveying terminal communications between the communications network and the terrestrial base station via a communications satellite comprises transferring information from a plurality of terrestrial wireless communications channels to a lesser number of satellite communications channels.
57. A method according to claim 48, A method of providing communications between a communications network and a plurality of wireless terminals served by a base station, the method comprising: conveying terminal communications between the communications network and the base station via a mobile communications satellite, wherein communication between the base station and the mobile communications satellite and communication between the base station and wireless terminals served by the base station occur over substantially the same frequency band, and
wherein conveying terminal communications between the communications network and the terrestrial base station via a mobile communications satellite comprises transferring information from a single satellite communication channel to a plurality of terrestrial wireless communications channels.
58. A method according to claim 48, further comprising communicating between the mobile communications satellite and wireless terminals without use of a terrestrial base station.
59. A method according to claim 48:
wherein conveying terminal communications between the communications network and the terrestrial base station via a mobile communications satellite comprises conveying terminal communications from the terrestrial base station to the mobile communications satellite; and
wherein the method further comprises conveying terminal communications from the mobile communications satellite to wireless terminals without use of a terrestrial base station.
60. A method according to claim 48:
wherein conveying terminal communications between the communications network and the terrestrial base station via a mobile communications satellite comprises conveying terminal communications from the mobile communications satellite to the terrestrial base station; and
wherein the method further comprises conveying terminal communications from wireless terminals to the mobile communications satellite without use of a terrestrial base station.
61. A method according to claim 48, further comprising controlling transmission power for of signals transmitted to the mobile communications satellite responsive to signals received from the mobile communications satellite.
62. A method according to claim 48, further comprising controlling transmission power for of signals transmitted to wireless terminals responsive to signals received from wireless terminals.
63. A method according to claim 48, wherein conveying terminal communications between the communications network and the terrestrial base station via a mobile communications satellite comprises:
receiving a signal from the mobile communications satellite at an earth-based a satellite radio antenna;
low-noiselow noise amplifying the received signal;
demodulating the amplified signal and generating a signal from the demodulated signal in a format suitable for transmission to a wireless terminal;
modulating the demodulated and regenerated signal;
amplifying the modulated signal; and
transmitting the amplified signal from a terrestrial wireless communications radio antenna to a wireless terminal.
64. A method according to claim 48, wherein conveying terminal communications between the communications network and the terrestrial base station via a mobile communications satellite comprises:
receiving a radio signal from a wireless terminal at the terrestrial wireless communications radio antenna;
low noise amplifying the received radio signal;
demodulating the amplified radio signal and generating a signal from the demodulated signal in a format suitable for transmission to the mobile communications satellite;
modulating the generated signal;
amplifying the modulated signal; and
transmitting the amplified signal from an earth-based a satellite radio antenna.
65. An apparatus for providing communications between a communications network and a plurality of wireless terminals served by a terrestrial base station, the apparatus comprising:
means for conveying terminal communications between the communications network and the terrestrial base station via a mobile communications satellite using a first radio interface; and
means for conveying the terminal communications between the terrestrial base station and wireless terminals using a second radio interface, wherein at least part of the terminal communications occurs between the communications network and the base station via the mobile communications satellite and communications between the base station and wireless terminals occur over substantially the same frequency band,
wherein the means for conveying terminal communications between the communications network and the base station via a mobile communications satellite using a first radio interface comprises means for conveying terminal communications between the communications network and a plurality of base stations, and
wherein the means for conveying terminal communications between the communications network and the base station via a mobile communications satellite using a first radio interface comprises means for transferring information from a plurality of wireless communications channels to a lesser number of satellite communications channels.
66. An apparatus according to claim 65, wherein the means for conveying terminal communications between the communications network and the terrestrial base station via a communications satellite using a first radio interface comprises means for conveying terminal communications between the communications network and a plurality of terrestrial base stations via a single satellite link.
67. An apparatus according to claim 66, wherein the means for conveying terminal communications between the communications network and the terrestrial base station via a communications satellite using a first radio interface comprises means for transferring information from a plurality of terrestrial wireless communications channels to a lesser number of satellite communications channels.
68. An apparatus according to claim 65, An apparatus for providing communications between a communications network and a plurality of wireless terminals served by a base station, the apparatus comprising:
means for conveying terminal communications between the communications network and the base station via a mobile communications satellite using a first radio interface; and
means for conveying the terminal communications between the base station and wireless terminals using a second radio interface, wherein terminal communications between the communications network and the base station via the mobile communications satellite and communications between the base station and wireless terminals occur over substantially the same frequency band, and
wherein the means for conveying terminal communications between the communications network and the terrestrial base station via a mobile communications satellite using a first radio interface comprises means for transferring information from a single satellite communication channel to a plurality of terrestrial wireless communications channels.
69. An apparatus according to claim 65, further comprising means for communicating between the mobile communications satellite and wireless terminals without use of a terrestrial base station.
70. A wireless communications system, comprising:
a satellite gateway coupled to a communications network and operative to communicate with a mobile communications satellite; and
a terrestrial terminal interface subsystem operative to communicate with the satellite gateway via the mobile communications satellite using a first radio interface and to communicate with wireless terminals over a geographic area using a second radio interface,
wherein the mobile communications satellite is operative to receive information intended for wireless terminals from the satellite gateway and to convey the received information to the wireless terminals without use of the terrestrial terminal interface subsystem; and
wherein the terrestrial terminal interface subsystem is operative to receive information from wireless terminals and to convey the received information to the communications network without use of the mobile communications satellite,
wherein the terminal interface subsystem comprises an interface converter operative to convert between the first and second radio interfaces, and
wherein the interface converter is operative to transfer information from a plurality of wireless communications channels to a lesser number of satellite communications channels.
71. A system according to claim 70, wherein the first and second radio interfaces are different.
72. A system according to claim 70, wherein the first and second radio interfaces are the same.
73. A system according to claim 70, further comprising the mobile communications satellite.
74. A system according to claim 70, wherein the communications network comprises a wireless communications network, and wherein the satellite gateway is configured to communicate with a base station controller of the wireless communications network.
75. A system according to claim 70, wherein the terrestrial terminal interface subsystem comprises an interface converter operative to convert between the first and second radio interfaces.
76. A system according to claim 75, wherein the interface converter is operative to transfer information from a plurality of terrestrial wireless communications channels to a lesser number of satellite communications channels.
77. A system according to claim 75, A wireless communications system, comprising:
a satellite gateway coupled to a communications network and operative to communicate with a mobile communications satellite; and
a terminal interface subsystem operative to communicate with the satellite gateway via the mobile communications satellite using a first radio interface and to communicate with wireless terminals using a second radio interface,
wherein the mobile communications satellite is operative to receive information intended for wireless terminals from the satellite gateway and to convey the received information to the wireless terminals without use of the terminal interface subsystem; and
wherein the terminal interface subsystem is operative to receive information from wireless terminals and to convey the received information to the communications network without use of the mobile communications satellite,
wherein the terminal interface subsystem comprises an interface converter operative to convert between the first and second radio interfaces; and
wherein the interface converter is operative to transfer information from a single satellite communication communications channel to a plurality of terrestrial wireless communications channels.
78. A system according to claim 75 70, wherein the interface converter provides unidirectional communications.
79. A system according to claim 75 70, wherein the interface converter provides bidirectional communications.
80. A system according to claim 70, wherein the terrestrial terminal interface subsystem includes a satellite radio antenna and a terrestrial wireless communications radio antenna co-located at a single terrestrial base station.
81. A system according to claim 70, wherein the terrestrial terminal interface subsystem includes a satellite radio antenna and a terrestrial wireless communications radio antenna located at geographically separate sites locations.
82. A system according to claim 70, wherein the terrestrial terminal interface subsystem comprises a plurality of terrestrial base stations located at respective ones of a plurality of geographically distributed sites locations.
83. A system according to claim 70, wherein the mobile communications satellite is further operative to communicate with terrestrial terminals without use of the terrestrial terminal interface subsystem.
84. A system according to claim 70:
wherein the mobile communications satellite is operative to receive information from wireless terminals without use of the terrestrial terminal interface subsystem and to convey the received information to the satellite gateway; and
wherein the terrestrial terminal interface subsystem is operative receive information intended for wireless terminals from the mobile communications satellite and to convey the received information to terrestrial wireless terminals.
85. A system according to claim 70,
wherein the terrestrial terminal interface subsystem is operative to receive information intended for wireless terminals from the mobile communications satellite and to convey the received information to terrestrial wireless terminals; and
wherein the terrestrial terminal interface subsystem is operative to receive information from wireless terminals and to convey the received information to the communications network without use of the mobile communications satellite.
86. A system according to claim 70, wherein the terrestrial terminal interface subsystem is operative to control transmission power for of signals transmitted to the mobile communications satellite responsive to signals received from the mobile communications satellite.
87. A system according to claim 70, wherein the terrestrial terminal interface subsystem is operative to control transmission power for of signals transmitted to wireless terminals responsive to signals received from wireless terminals.
88. A system according to claim 70, wherein the terrestrial terminal interface subsystem comprises:
a satellite radio antenna;
first low-noise low noise amplifier coupled to the satellite radio antenna;
a first demodulation and regeneration unit having an input coupled to an output of the first low noise amplifier;
a first modulator having an input coupled to an output of the first demodulation and regeneration unit;
a first power amplifier having an input coupled to an output of the first modulator; and
a terrestrial wireless communications radio antenna coupled to the output of the first power amplifier.
89. A system according to claim 88, further comprising a first interference reducer coupled to the first demodulation and regeneration unit.
90. A system according to claim 88, wherein the terrestrial terminal interface subsystem further comprises:
a second low noise amplifier coupled to the terrestrial wireless communications radio antenna;
a second demodulation and regeneration unit having an input coupled to an output of the second low noise amplifier;
a second modulator having an input coupled to an output of the second demodulation and regeneration unit; and
a second power amplifier having an input coupled to an output of the second modulator and an output coupled to the satellite radio antenna.
91. A system according to claim 90, further comprising a second interference reducer coupled to the second demodulation and regeneration unit.
92. A system according to claim 90, wherein the second modulator is operative to control power of a signal transmitted from the satellite radio antenna responsive to the first demodulation and regeneration unit.
93. A system according to claim 90, wherein the first modulator is operative to control power of a signal transmitted from the terrestrial wireless communications radio antenna responsive to the second demodulation and regeneration unit.
94. A system according to claim 70, wherein the terrestrial terminal interface subsystem comprises:
a terrestrial wireless communications radio antenna;
a low noise amplifier coupled to the terrestrial wireless communications radio antenna;
a demodulation and regeneration unit having an input coupled to an output of the low noise amplifier;
a modulator having an input coupled to an output of the demodulation and regeneration unit;
a power amplifier having an input coupled to an output of the modulator; and
a satellite radio antenna coupled to an output of the power amplifier.
95. A system according to claim 70, further comprising a wireless terminal.
96. A terrestrial terminal interface subsystem for a wireless communications system, the subsystem comprising:
a satellite radio antenna;
a terrestrial wireless communications radio antenna;
an interface converter operative to communicate with a mobile communications satellite via the satellite radio antenna using a first radio interface and to communicate with wireless terminals over a geographic area via the terrestrial wireless communications radio antenna using a second radio interface;
a first low-noise low noise amplifier coupled to the satellite radio antenna;
a first demodulation and regeneration unit having an input coupled to an output of the first low noise amplifier;
a first modulator having an input coupled to an output of the first demodulation and regeneration unit; and
a first power amplifier having an input coupled to an output of the first modulator and an output coupled to the terrestrial wireless communications radio antenna,
wherein the interface converter is operative to transfer information from a single satellite communications channel to a plurality of wireless terminal communications channels.
97. A subsystem according to claim 96, A terminal interface subsystem for a wireless communications system, the subsystem comprising:
a satellite radio antenna;
a wireless communications radio antenna;
an interface converter operative to communicate with a mobile communications satellite via the satellite radio antenna using a first radio interface and to communicate with wireless terminals via the wireless communications radio antenna using a second radio interface;
a first low noise amplifier coupled to the satellite radio antenna;
a first demodulation and regeneration unit having an input coupled to an output of the first low noise amplifier;
a first modulator having an input coupled to an output of the first demodulation and regeneration unit; and
a first power amplifier having an input coupled to an output of the first modulator and an output coupled to the wireless communications radio antenna,
wherein the interface converter is operative to transfer information from a plurality of terrestrial wireless terminal communications channels to a lesser number of satellite communications channels.
98. A subsystem according to claim 96, wherein the interface converter is operative to transfer information from a single satellite communication channel to a plurality of terrestrial wireless communications channels.
99. A subsystem according to claim 96, wherein the terrestrial wireless communications radio antenna, the satellite radio antenna, and the interface converter are co-located at a single terrestrial base station.
100. A subsystem according to claim 96, wherein the terrestrial wireless communications radio antenna and the satellite radio antenna are positioned at geographically separate locations.
101. A subsystem according to claim 96, wherein the terrestrial wireless communications radio antenna comprises a plurality of terrestrial radio antennas located at respective ones of a plurality of second geographically distributed second terrestrial sites locations.
102. A subsystem according to claim 96, wherein the interface converter provides unidirectional communications.
103. A subsystem according to claim 96, wherein the interface converter provides bidirectional communications.
104. A subsystem according to claim 96, further comprising a first interference reducer coupled to the first demodulation and regeneration unit.
105. A subsystem according to claim 96, comprising:
a second low noise amplifier coupled to the terrestrial wireless communications radio antenna;
a second demodulation and regeneration unit having an input coupled to an output of the second low noise amplifier;
a second modulator having an input coupled to an output of the second demodulation and regeneration unit; and
a second power amplifier having an input coupled to an output of the second modulator and an output coupled to the satellite radio antenna.
106. A subsystem according to claim 105, further comprising a second interference reducer coupled to the second demodulation and regeneration unit.
107. A subsystem according to claim 105, wherein the second modulator is operative to control power of a signal transmitted from the satellite radio antenna responsive to the first demodulation and regeneration unit.
108. A subsystem according to claim 99, wherein the first modulator is operative to control power of a signal transmitted from the terrestrial wireless communications radio antenna responsive to the second demodulation and regeneration unit.
109. A subsystem according to claim 96, wherein the terrestrial terminal interface subsystem further comprises:
a low noise amplifier coupled to the terrestrial wireless communications radio antenna;
a demodulation and regeneration unit having an input coupled to an output of the low noise amplifier;
a modulator having an input coupled to an output of the demodulation and regeneration unit; and
a power amplifier having an input coupled to an output of the second modulator and an output coupled to the satellite radio antenna.
110. A method of providing communications between a communications network and a plurality of wireless terminals served by a terrestrial base station, the method comprising:
conveying terminal communications between the communications network and the terrestrial base station via a communications satellite,
wherein conveying terminal communications between the communications network and the terrestrial base station via a communications satellite comprises:
receiving a signal from the communications satellite at an earth-based satellite radio antenna;
low-noise amplifying the received signal;
demodulating the amplified signal and generating a signal from the demodulated signal in a format suitable for transmission to a wireless terminal;
modulating the demodulated and regenerated signal;
amplifying the modulated signal; and
transmitting the amplified signal from a terrestrial radio antenna to a wireless terminal.
111. A method according to claim 110, wherein conveying terminal communications between the communications network and the terrestrial base station via a communications satellite comprises:
conveying a first radio signal from the communications satellite to earth using a first radio interface; and
conveying a second radio signal from the first radio signal from the terrestrial base station to a wireless terminal using a second radio interface, the second radio signal including information from the first radio signal.
112. A method according to claim 111, wherein the first and second radio interfaces are the same.
113. A method according to claim 110, wherein conveying terminal communications between the communications network and the terrestrial base station via a communications satellite comprises:
conveying a first radio signal from a wireless terminal to the terrestrial base station using a first radio interface; and
conveying a second radio signal from earth to the communications satellite using a second radio interface, the second radio signal including information from the first radio signal.
114. A method according to claim 113, wherein the first and second radio interfaces are the same.
115. A method according to claim 110, wherein conveying terminal communications between the communications network and the terrestrial base station via a communications satellite comprises conveying the terminal communications via a satellite antenna co-located with the terrestrial base station.
116. A method according to claim 110, wherein conveying terminal communications between the communications network and the terrestrial base station via a communications satellite comprises conveying terminal communications between the communications network and a plurality of terrestrial base stations via a single satellite link.
117. A method according to claim 110, wherein the communications network comprises a wireless communications network, and wherein conveying terminal communications between the communications network and the terrestrial base station via a communications satellite comprises conveying the terminal communications between the communications satellite and a satellite gateway coupled to a base station controller of the wireless communications network.
118. A method according to claim 110, wherein conveying terminal communications between the communications network and the terrestrial base station via a communications satellite comprises transferring information from a plurality of terrestrial wireless communications channels to a lesser number of satellite communications channels.
119. A method according to claim 110, wherein conveying terminal communications between the communications network and the terrestrial base station via a communications satellite comprises transferring information from a single satellite communication channel to a plurality of terrestrial wireless communications channels.
120. A method according to claim 110, further comprising communicating between the communications satellite and wireless terminals without use of a terrestrial base station.
121. A method according to claim 110:
wherein conveying terminal communications between the communications network and the terrestrial base station via a communications satellite comprises conveying terminal communications from the terrestrial base station to the communications satellite;and
wherein the method further comprises conveying terminal communications from the communications satellite to wireless terminals without use of a terrestrial base station.
122. A method according to claim 110:
wherein conveying terminal communications between the communications network and the terrestrial base station via a communications satellite comprises conveying terminal communications from the communications satellite to the terrestrial base station; and
wherein the method further comprises conveying terminal communications from wireless terminals to the communications satellite without use of a terrestrial base station.
123. A method according to claim 110, further comprising controlling transmission power for signals transmitted to the communications satellite responsive to signals received from the communications satellite.
124. A method according to claim 110, further comprising controlling transmission power for signals transmitted to wireless terminals responsive to signals received from wireless terminals.
125. A method according to claim 110, wherein conveying terminal communications between the communications network and the terrestrial base station via a communications satellite comprises:
receiving a radio signal from a wireless terminal at the terrestrial radio antenna;
low noise amplifying the received radio signal;
demodulating the amplified radio signal and generating a signal from the demodulated signal in a format suitable for transmission to the communications satellite;
modulating the generated signal;
amplifying the modulated signal; and
transmitting the amplified signal from an earth-based satellite radio antenna.
126. A terminal interface subsystem comprising:
a satellite radio antenna;
a wireless communications radio antenna; and
an interface converter operative to communicate with at least one satellite via the satellite radio antenna using frequencies of a predetermined frequency band and to communicate with wireless terminals via the wireless communications radio antenna using frequencies of the predetermined frequency band, wherein the interface converter is operative to transfer information from a single satellite communications channel to a plurality of wireless communications channels and wherein the predetermined frequency band is a mobile satellite frequency band.
127. A terminal interface subsystem comprising:
a satellite radio antenna;
a wireless communications radio antenna; and
an interface converter operative to communicate with at least one satellite via the satellite radio antenna using frequencies of a predetermined frequency band and to communicate with wireless terminals via the wireless communications radio antenna using frequencies of the predetermined frequency band, wherein the interface converter is operative to transfer information from a plurality of wireless communications channels to a lesser number of satellite communications channels and wherein the predetermined frequency band is a mobile satellite frequency band.
128. A terminal interface subsystem according to claim 127, wherein the wireless communications radio antenna and the satellite radio antenna are substantially co-located.
129. A terminal interface subsystem according to claim 127, wherein the wireless communications radio antenna and the satellite radio antenna are located at substantially separate locations.
130. A terminal interface subsystem according to claim 127, wherein the wireless communications radio antenna comprises a plurality of wireless communications radio antennas.
131. A terminal interface subsystem according to claim 127, wherein the interface converter provides unidirectional communications.
132. A terminal interface subsystem according to claim 127, wherein the interface converter provides bidirectional communications.
133. A terminal interface subsystem according to claim 127, further comprising:
a first low noise amplifier coupled to the satellite radio antenna;
a first demodulation and regeneration unit having an input coupled to an output of the first low noise amplifier;
a first modulator having an input coupled to an output of the first demodulation and regeneration unit; and
a first power amplifier having an input coupled to an output of the first modulator and an output coupled to the wireless communications radio antenna.
134. A terminal interface subsystem according to claim 133, further comprising a first interference reducer coupled to the first demodulation and regeneration unit.
135. A terminal interface subsystem according to claim 133, further comprising:
a second low noise amplifier coupled to the wireless communications radio antenna;
a second demodulation and regeneration unit having an input coupled to an output of the second low noise amplifier;
a second modulator having an input coupled to an output of the second demodulation and regeneration unit; and
a second power amplifier having an input coupled to an output of the second modulator and an output coupled to the satellite radio antenna.
136. A terminal interface subsystem according to claim 135, further comprising a second interference reducer coupled to the second demodulation and regeneration unit.
137. A terminal interface subsystem according to claim 135, wherein the second modulator is operative to control power of a signal transmitted from the satellite radio antenna responsive to the first demodulation and regeneration unit.
138. A terminal interface subsystem according to claim 133, wherein the first modulator is operative to control power of a signal transmitted from the wireless communications radio antenna responsive to the second demodulation and regeneration unit.
139. A terminal interface subsystem according to claim 127, further comprising:
a low noise amplifier coupled to the wireless communications radio antenna;
a demodulation and regeneration unit having an input coupled to an output of the low noise amplifier;
a modulator having an input coupled to an output of the demodulation and regeneration unit; and
a power amplifier having an input coupled to an output of the modulator and an output coupled to the satellite radio antenna.
140. A method of providing communications between a communications network and a plurality of wireless terminals served by a base station, the method comprising:
conveying terminal communications between the communications network and the base station via a communications satellite,
wherein conveying terminal communications between the communications network and the base station via a communications satellite comprises:
receiving a signal from the communications satellite at a satellite radio antenna;
low-noise amplifying the received signal;
demodulating the amplified signal and regenerating the demodulated signal to recover a bitstream or other datastream in a format suitable for modulation and transmission to a wireless terminal;
modulating the bitstream or datastream;
amplifying the modulated signal; and
transmitting the amplified signal from a wireless communications radio antenna to a wireless terminal.
141. A method according to claim 140, wherein conveying terminal communications between the communications network and the base station via a communications satellite comprises:
conveying a first radio signal from the communications satellite to the base station using a first radio interface; and
conveying a second radio signal from the first radio signal from the base station to a wireless terminal using a second radio interface, the second radio signal including information from the first radio signal.
142. A method according to claim 141, wherein the first and second radio interfaces are the same.
143. A method according to claim 140, wherein conveying terminal communications between the communications network and the base station via a communications satellite comprises:
conveying a first radio signal from a wireless terminal to the base station using a first radio interface; and
conveying a second radio signal from the base station to the communications satellite using a second radio interface, the second radio signal including information from the first radio signal.
144. A method according to claim 143, wherein the first and second radio interfaces are the same.
145. A method according to claim 140, wherein conveying terminal communications between the communications network and the base station via a communications satellite comprises conveying the terminal communications via a satellite antenna co-located with the base station.
146. A method according to claim 140, wherein conveying terminal communications between the communications network and the base station via a communications satellite comprises conveying terminal communications between the communications network and a plurality of base stations.
147. A method according to claim 140, wherein the communications network comprises a wireless communications network, and wherein conveying terminal communications between the communications network and the base station via a communications satellite comprises conveying the terminal communications between the communications satellite and a satellite gateway coupled to a base station controller of the wireless communications network.
148. A method according to claim 140, wherein conveying terminal communications between the communications network and the base station via a communications satellite comprises transferring information from a plurality of wireless communications channels to a lesser number of satellite communications channels.
149. A method according to claim 140, wherein conveying terminal communications between the communications network and the base station via a communications satellite comprises transferring information from a single satellite communication channel to a plurality of wireless communications channels.
150. A method according to claim 140, further comprising controlling transmission power for signals transmitted to the communications satellite responsive to signals received from the communications satellite.
151. A method according to claim 140, further comprising controlling transmission power for signals transmitted to wireless terminals responsive to signals received from wireless terminals.
152. A method according to claim 140, wherein conveying terminal communications between the communications network and the base station via a communications satellite comprises:
receiving a radio signal from a wireless terminal at the wireless communications radio antenna;
low noise amplifying the received radio signal;
demodulating the amplified radio signal and regenerating the demodulated signal to recover a bitstream or other datastream in a format suitable for modulation and transmission to the communications satellite;
modulating the bitstream or datastream;
amplifying the modulated signal; and
transmitting the amplified signal from the satellite radio antenna.
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070293214A1 (en) * 2006-06-19 2007-12-20 Thales Alenia Space France Systems and methods for orthogonal frequency division multiple access (ofdma) communications over satellite links
US20100039967A1 (en) * 2001-09-14 2010-02-18 Atc Technologies, Llc Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex and/or frequency-division duplex mode
US20110171986A1 (en) * 2004-03-08 2011-07-14 Levin Lon C Communications Systems and Methods Including Emission Detection
US20110201326A1 (en) * 2003-03-24 2011-08-18 Atc Technologies, Llc Radioterminals and operating methods that receive multiple measures of information from multiple sources
US20110212694A1 (en) * 2004-08-11 2011-09-01 Karabinis Peter D Satellite-Band Spectrum Utilization For Reduced Or Minimum Interference
US8131293B2 (en) 2003-09-23 2012-03-06 Atc Technologies, Llc Systems and methods for mobility management in overlaid mobile communications systems
US8238819B2 (en) 2003-09-11 2012-08-07 Atc Technologies, Llc Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint
US9037078B2 (en) 2004-11-02 2015-05-19 Atc Technologies, Llc Apparatus and methods for power control in satellite communications systems with satellite-linked terrestrial stations

Families Citing this family (94)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7714778B2 (en) * 1997-08-20 2010-05-11 Tracbeam Llc Wireless location gateway and applications therefor
US20030149986A1 (en) * 1999-08-10 2003-08-07 Mayfield William W. Security system for defeating satellite television piracy
US7174127B2 (en) * 1999-08-10 2007-02-06 Atc Technologies, Llc Data communications systems and methods using different wireless links for inbound and outbound data
US6892068B2 (en) * 2000-08-02 2005-05-10 Mobile Satellite Ventures, Lp Coordinated satellite-terrestrial frequency reuse
US6859652B2 (en) * 2000-08-02 2005-02-22 Mobile Satellite Ventures, Lp Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
US7792488B2 (en) * 2000-12-04 2010-09-07 Atc Technologies, Llc Systems and methods for transmitting electromagnetic energy over a wireless channel having sufficiently weak measured signal strength
US8265637B2 (en) 2000-08-02 2012-09-11 Atc Technologies, Llc Systems and methods for modifying antenna radiation patterns of peripheral base stations of a terrestrial network to allow reduced interference
US7113778B2 (en) * 2001-09-14 2006-09-26 Atc Technologies, Llc Aggregate radiated power control for multi-band/multi-mode satellite radiotelephone communications systems and methods
US7792069B2 (en) * 2001-09-14 2010-09-07 Atc Technologies, Llc Systems and methods for terrestrial reuse of cellular satellite frequency spectrum using different channel separation technologies in forward and reverse links
US7447501B2 (en) * 2001-09-14 2008-11-04 Atc Technologies, Llc Systems and methods for monitoring selected terrestrially used satellite frequency signals to reduce potential interference
US7218931B2 (en) * 2001-09-14 2007-05-15 Atc Technologies, Llc Satellite radiotelephone systems providing staggered sectorization for terrestrial reuse of satellite frequencies and related methods and radiotelephone systems
US7603117B2 (en) 2001-09-14 2009-10-13 Atc Technologies, Llc Systems and methods for terrestrial use of cellular satellite frequency spectrum
US7181161B2 (en) * 2001-09-14 2007-02-20 Atc Technologies, Llc Multi-band/multi-mode satellite radiotelephone communications systems and methods
US7603081B2 (en) * 2001-09-14 2009-10-13 Atc Technologies, Llc Radiotelephones and operating methods that use a single radio frequency chain and a single baseband processor for space-based and terrestrial communications
US8270898B2 (en) * 2001-09-14 2012-09-18 Atc Technologies, Llc Satellite-band spectrum utilization for reduced or minimum interference
USRE45107E1 (en) 2002-07-02 2014-09-02 Atc Technologies, Llc Filters for combined radiotelephone/GPS terminals
US7623859B2 (en) * 2001-09-14 2009-11-24 Atc Technologies, Llc Additional aggregate radiated power control for multi-band/multi-mode satellite radiotelephone communications systems and methods
US7890098B2 (en) * 2001-09-14 2011-02-15 Atc Technologies, Llc Staggered sectorization for terrestrial reuse of satellite frequencies
US7421342B2 (en) * 2003-01-09 2008-09-02 Atc Technologies, Llc Network-assisted global positioning systems, methods and terminals including doppler shift and code phase estimates
US7593724B2 (en) * 2001-09-14 2009-09-22 Atc Technologies, Llc Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex mode
US7062267B2 (en) * 2001-09-14 2006-06-13 Atc Technologies, Llc Methods and systems for modifying satellite antenna cell patterns in response to terrestrial reuse of satellite frequencies
US7155340B2 (en) * 2001-09-14 2006-12-26 Atc Technologies, Llc Network-assisted global positioning systems, methods and terminals including doppler shift and code phase estimates
US7593691B2 (en) * 2002-02-12 2009-09-22 Atc Technologies, Llc Systems and methods for controlling a level of interference to a wireless receiver responsive to a power level associated with a wireless transmitter
US6999720B2 (en) * 2001-09-14 2006-02-14 Atc Technologies, Llc Spatial guardbands for terrestrial reuse of satellite frequencies
US7006789B2 (en) * 2001-09-14 2006-02-28 Atc Technologies, Llc Space-based network architectures for satellite radiotelephone systems
USRE43137E1 (en) 2001-09-14 2012-01-24 Atc Technologies, Llc Filters for combined radiotelephone/GPS terminals
US6856787B2 (en) 2002-02-12 2005-02-15 Mobile Satellite Ventures, Lp Wireless communications systems and methods using satellite-linked remote terminal interface subsystems
US7010265B2 (en) * 2002-05-22 2006-03-07 Microsoft Corporation Satellite receiving system with transmodulating outdoor unit
US6937857B2 (en) * 2002-05-28 2005-08-30 Mobile Satellite Ventures, Lp Systems and methods for reducing satellite feeder link bandwidth/carriers in cellular satellite systems
US7092708B2 (en) * 2002-12-12 2006-08-15 Atc Technologies, Llc Systems and methods for increasing capacity and/or quality of service of terrestrial cellular and satellite systems using terrestrial reception of satellite band frequencies
US7444170B2 (en) * 2003-03-24 2008-10-28 Atc Technologies, Llc Co-channel wireless communication methods and systems using nonsymmetrical alphabets
US6879829B2 (en) * 2003-05-16 2005-04-12 Mobile Satellite Ventures, Lp Systems and methods for handover between space based and terrestrial radioterminal communications, and for monitoring terrestrially reused satellite frequencies at a radioterminal to reduce potential interference
US20040240525A1 (en) * 2003-05-29 2004-12-02 Karabinis Peter D. Wireless communications methods and apparatus using licensed-use system protocols with unlicensed-use access points
US7558568B2 (en) * 2003-07-28 2009-07-07 Atc Technologies, Llc Systems and methods for modifying antenna radiation patterns of peripheral base stations of a terrestrial network to allow reduced interference
US7340213B2 (en) * 2003-07-30 2008-03-04 Atc Technologies, Llc Intra- and/or inter-system interference reducing systems and methods for satellite communications systems
US8670705B2 (en) * 2003-07-30 2014-03-11 Atc Technologies, Llc Additional intra-and/or inter-system interference reducing systems and methods for satellite communications systems
US20050041619A1 (en) * 2003-08-22 2005-02-24 Karabinis Peter D. Wireless systems, methods and devices employing forward- and/or return-link carriers having different numbers of sub-band carriers
EP1661265B1 (en) * 2003-09-02 2012-02-08 Slieve Mish Inventions Limited A communication system and method
US8380186B2 (en) * 2004-01-22 2013-02-19 Atc Technologies, Llc Satellite with different size service link antennas and radioterminal communication methods using same
US7453920B2 (en) 2004-03-09 2008-11-18 Atc Technologies, Llc Code synchronization in CDMA satellite wireless communications system using uplink channel detection
US7933552B2 (en) * 2004-03-22 2011-04-26 Atc Technologies, Llc Multi-band satellite and/or ancillary terrestrial component radioterminal communications systems and methods with combining operation
US7606590B2 (en) 2004-04-07 2009-10-20 Atc Technologies, Llc Satellite/hands-free interlock systems and/or companion devices for radioterminals and related methods
US7636566B2 (en) 2004-04-12 2009-12-22 Atc Technologies, Llc Systems and method with different utilization of satellite frequency bands by a space-based network and an ancillary terrestrial network
US7418236B2 (en) * 2004-04-20 2008-08-26 Mobile Satellite Ventures, Lp Extraterrestrial communications systems and methods including ancillary extraterrestrial components
US20050239399A1 (en) * 2004-04-21 2005-10-27 Karabinis Peter D Mobile terminals and set top boxes including multiple satellite band service links, and related systems and methods
US8265549B2 (en) * 2004-05-18 2012-09-11 Atc Technologies, Llc Satellite communications systems and methods using radiotelephone
US20050260984A1 (en) * 2004-05-21 2005-11-24 Mobile Satellite Ventures, Lp Systems and methods for space-based use of terrestrial cellular frequency spectrum
WO2006012348A3 (en) * 2004-06-25 2006-03-16 Atc Tech Llc Method and system for frequency translation on-board a communications satellite
US20060094420A1 (en) * 2004-11-02 2006-05-04 Karabinis Peter D Multi frequency band/multi air interface/multi spectrum reuse cluster size/multi cell size satellite radioterminal communicaitons systems and methods
CA2581601C (en) * 2004-11-16 2013-03-19 Atc Technologies, Llc Satellite communications systems, components and methods for operating shared satellite gateways
US7747229B2 (en) * 2004-11-19 2010-06-29 Atc Technologies, Llc Electronic antenna beam steering using ancillary receivers and related methods
US7706745B2 (en) * 2004-12-03 2010-04-27 M&Fc Holding, Llc Method, system, apparatus, and computer program product for communications relay
US7454175B2 (en) * 2004-12-07 2008-11-18 Atc Technologies, Llc Broadband wireless communications systems and methods using multiple non-contiguous frequency bands/segments
US8594704B2 (en) * 2004-12-16 2013-11-26 Atc Technologies, Llc Location-based broadcast messaging for radioterminal users
EP2259448A3 (en) * 2005-01-05 2013-11-13 ATC Technologies, LLC Adaptive beam forming with multi-user detection and interference reduction in satellite communication systems and methods
US7596111B2 (en) * 2005-01-27 2009-09-29 Atc Technologies, Llc Satellite/terrestrial wireless communications systems and methods using disparate channel separation codes
US7636546B2 (en) * 2005-02-22 2009-12-22 Atc Technologies, Llc Satellite communications systems and methods using diverse polarizations
US7738837B2 (en) * 2005-02-22 2010-06-15 Atc Technologies, Llc Satellites using inter-satellite links to create indirect feeder link paths
WO2006091605A3 (en) * 2005-02-22 2007-03-22 Atc Tech Llc Reusing frequencies of a fixed and/or mobile communications system
US7756490B2 (en) * 2005-03-08 2010-07-13 Atc Technologies, Llc Methods, radioterminals, and ancillary terrestrial components for communicating using spectrum allocated to another satellite operator
US7796986B2 (en) * 2005-03-11 2010-09-14 Atc Technologies, Llc Modification of transmission values to compensate for interference in a satellite down-link communications
US7627285B2 (en) * 2005-03-14 2009-12-01 Atc Technologies, Llc Satellite communications systems and methods with distributed and/or centralized architecture including ground-based beam forming
WO2006099501A1 (en) * 2005-03-15 2006-09-21 Atc Technologies, Llc Methods and systems providing adaptive feeder links for ground based beam forming and related systems and satellites
WO2006099443A1 (en) 2005-03-15 2006-09-21 Atc Technologies, Llc Intra-system and/or inter-system reuse of feeder link frequencies including interference suppression systems and methods
US7453396B2 (en) * 2005-04-04 2008-11-18 Atc Technologies, Llc Radioterminals and associated operating methods that alternate transmission of wireless communications and processing of global positioning system signals
US7817967B2 (en) * 2005-06-21 2010-10-19 Atc Technologies, Llc Communications systems including adaptive antenna systems and methods for inter-system and intra-system interference reduction
US7970345B2 (en) * 2005-06-22 2011-06-28 Atc Technologies, Llc Systems and methods of waveform and/or information splitting for wireless transmission of information to one or more radioterminals over a plurality of transmission paths and/or system elements
US7907944B2 (en) * 2005-07-05 2011-03-15 Atc Technologies, Llc Methods, apparatus and computer program products for joint decoding of access probes in a CDMA communications system
US8190114B2 (en) * 2005-07-20 2012-05-29 Atc Technologies, Llc Frequency-dependent filtering for wireless communications transmitters
US7623867B2 (en) * 2005-07-29 2009-11-24 Atc Technologies, Llc Satellite communications apparatus and methods using asymmetrical forward and return link frequency reuse
US7461756B2 (en) * 2005-08-08 2008-12-09 Plastipak Packaging, Inc. Plastic container having a freestanding, self-supporting base
DE602006013994D1 (en) * 2005-08-09 2010-06-10 Atc Tech Llc Satellite communication systems and methods with use of substantially adjacent feeder link antennas
US20070123252A1 (en) * 2005-10-12 2007-05-31 Atc Technologies, Llc Systems, methods and computer program products for mobility management in hybrid satellite/terrestrial wireless communications systems
US8090041B2 (en) * 2006-01-20 2012-01-03 Atc Technologies Llc Systems and methods for forward link closed loop beamforming
US7551684B2 (en) * 2006-02-15 2009-06-23 Wistron Neweb Corporation Wireless communication system using a single trace for transmitting signals
US8705436B2 (en) 2006-02-15 2014-04-22 Atc Technologies, Llc Adaptive spotbeam broadcasting, systems, methods and devices for high bandwidth content distribution over satellite
US7751823B2 (en) * 2006-04-13 2010-07-06 Atc Technologies, Llc Systems and methods for controlling a level of interference to a wireless receiver responsive to an activity factor associated with a wireless transmitter
US8923850B2 (en) 2006-04-13 2014-12-30 Atc Technologies, Llc Systems and methods for controlling base station sectors to reduce potential interference with low elevation satellites
US9014619B2 (en) 2006-05-30 2015-04-21 Atc Technologies, Llc Methods and systems for satellite communications employing ground-based beam forming with spatially distributed hybrid matrix amplifiers
US8463178B2 (en) 2006-06-05 2013-06-11 Globalstar, Inc. Handover between ATC and satellite component of an integrated MSS/ATC system
US8179832B2 (en) * 2006-06-05 2012-05-15 Globalstar, Inc. System and method for providing an improved terrestrial subsystem for use in mobile satellite systems
WO2008027109A3 (en) * 2006-06-29 2008-09-12 Atc Tech Llc Apparatus and methods for mobility management in hybrid terrestrial-satellite mobile communications systems
US8031646B2 (en) * 2007-05-15 2011-10-04 Atc Technologies, Llc Systems, methods and devices for reusing spectrum of another operator
US8064824B2 (en) * 2007-07-03 2011-11-22 Atc Technologies, Llc Systems and methods for reducing power robbing impact of interference to a satellite
US7978135B2 (en) * 2008-02-15 2011-07-12 Atc Technologies, Llc Antenna beam forming systems/methods using unconstrained phase response
US8433241B2 (en) 2008-08-06 2013-04-30 Atc Technologies, Llc Systems, methods and devices for overlaid operations of satellite and terrestrial wireless communications systems
US8193975B2 (en) 2008-11-12 2012-06-05 Atc Technologies Iterative antenna beam forming systems/methods
US8339308B2 (en) * 2009-03-16 2012-12-25 Atc Technologies Llc Antenna beam forming systems, methods and devices using phase adjusted least squares beam forming
US8520561B2 (en) * 2009-06-09 2013-08-27 Atc Technologies, Llc Systems, methods and network components that provide different satellite spot beam return carrier groupings and reuse patterns
CA2769828C (en) 2009-09-28 2017-04-04 Atc Technologies, Llc Systems and methods for adaptive interference cancellation beamforming
US20110103273A1 (en) * 2009-11-04 2011-05-05 Atc Technologies, Llc Frequency division duplex (fdd) return link transmit diversity systems, methods and devices using forward link side information
FR2952771B1 (en) * 2009-11-13 2011-12-02 Thales Sa A telecommunications system comprising an airborne communication node, the communication node and node AIRBORNE tactical radio
US8274925B2 (en) 2010-01-05 2012-09-25 Atc Technologies, Llc Retaining traffic channel assignments for satellite terminals to provide lower latency communication services
CN102355649B (en) * 2011-08-17 2014-05-28 航天恒星科技有限公司 Mobile communication base station in emergency communication and emergency communication method thereof

Citations (120)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901307A (en) 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US5073900A (en) 1990-03-19 1991-12-17 Mallinckrodt Albert J Integrated cellular communications system
EP0506255A2 (en) 1991-03-29 1992-09-30 Space Systems / Loral Inc. Wireless telephone/satellite roaming system
EP0597225A1 (en) 1992-11-12 1994-05-18 Motorola, Inc. Network of hierarchical communication systems and method therefor
US5394561A (en) 1990-03-06 1995-02-28 Motorola, Inc. Networked satellite and terrestrial cellular radiotelephone systems
US5446756A (en) 1990-03-19 1995-08-29 Celsat America, Inc. Integrated cellular communications system
US5448623A (en) 1991-10-10 1995-09-05 Space Systems/Loral, Inc. Satellite telecommunications system using network coordinating gateways operative with a terrestrial communication system
US5511233A (en) 1994-04-05 1996-04-23 Celsat America, Inc. System and method for mobile communications in coexistence with established communications systems
US5555257A (en) 1994-01-11 1996-09-10 Ericsson Ge Mobile Communications Inc. Cellular/satellite communications system with improved frequency re-use
US5584046A (en) 1994-11-04 1996-12-10 Cornell Research Foundation, Inc. Method and apparatus for spectrum sharing between satellite and terrestrial communication services using temporal and spatial synchronization
EP0748065A2 (en) 1995-06-06 1996-12-11 Globalstar L.P. Satellite repeater diversity resource management system
EP0755163A2 (en) 1995-07-20 1997-01-22 Ntt Mobile Communications Network Inc. Mobile communication system using efficient service area expansion scheme
EP0762669A2 (en) 1995-08-18 1997-03-12 Ntt Mobile Communications Network Inc. Communication mode switching method for mobile station
US5619525A (en) 1995-06-06 1997-04-08 Globalstar L.P. Closed loop power control for low earth orbit satellite communications system
EP0797319A2 (en) 1996-03-21 1997-09-24 Trw Inc. Communications satellite router-formatter
EP0831599A2 (en) 1996-09-04 1998-03-25 Globalstar L.P. Automatic satellite/terrestrial mobile terminal roaming system
US5761605A (en) 1996-10-11 1998-06-02 Northpoint Technology, Ltd. Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals
US5765098A (en) 1995-01-02 1998-06-09 Agence Spatiale Europeenne Method and system for transmitting radio signals between a fixed terrestrial station and user mobile terminals via a network of satellites
US5832379A (en) 1990-03-19 1998-11-03 Celsat America, Inc. Communications system including control means for designating communication between space nodes and surface nodes
US5852721A (en) 1994-06-08 1998-12-22 Hughes Electronics Corporation Method and apparatus for selectively retrieving information from a source computer using a terrestrial or satellite interface
US5878329A (en) 1990-03-19 1999-03-02 Celsat America, Inc. Power control of an integrated cellular communications system
US5884142A (en) 1997-04-15 1999-03-16 Globalstar L.P. Low earth orbit distributed gateway communication system
US5887258A (en) 1996-10-28 1999-03-23 Societe National Industrielle Et Aerospatiale Device for allowing the use in an aircraft of radio communication means
US5907541A (en) 1997-09-17 1999-05-25 Lockheed Martin Corp. Architecture for an integrated mobile and fixed telecommunications system including a spacecraft
US5926758A (en) 1996-08-26 1999-07-20 Leo One Ip, L.L.C. Radio frequency sharing methods for satellite systems
US5937332A (en) 1997-03-21 1999-08-10 Ericsson, Inc. Satellite telecommunications repeaters and retransmission methods
US5991345A (en) 1995-09-22 1999-11-23 Qualcomm Incorporated Method and apparatus for diversity enhancement using pseudo-multipath signals
US6011951A (en) 1997-08-22 2000-01-04 Teledesic Llc Technique for sharing radio frequency spectrum in multiple satellite communication systems
US6023605A (en) 1997-03-19 2000-02-08 Fujitsu Limited Dual layer satellite communications system and geostationary satellite therefor
US6052586A (en) 1997-08-29 2000-04-18 Ericsson Inc. Fixed and mobile satellite radiotelephone systems and methods with capacity sharing
US6052560A (en) 1997-10-15 2000-04-18 Ericsson Inc Satellite system utilizing a plurality of air interface standards and method employing same
US6052558A (en) 1997-04-28 2000-04-18 Motorola, Inc. Networked repeater
US6055425A (en) 1996-11-11 2000-04-25 Nokia Telecomunications Oy Aeronautical cellular network
EP0998062A1 (en) 1998-10-28 2000-05-03 ALCALTEL ALSTHOM Compagnie Générale d'Electricité Cellular radiotelephony device usable on board of a passengers transport vehicle
US6067442A (en) 1991-10-10 2000-05-23 Globalstar L.P. Satellite communications system having distributed user assignment and resource assignment with terrestrial gateways
US6072430A (en) 1997-04-09 2000-06-06 Ico Services Ltd. Satellite terminal position determination
US6085094A (en) 1997-08-29 2000-07-04 Nortel Networks Corporation Method for optimizing spectral re-use
US6091933A (en) 1997-01-03 2000-07-18 Globalstar L.P. Multiple satellite system power allocation by communication link optimization
US6101385A (en) 1997-10-09 2000-08-08 Globalstar L.P. Satellite communication service with non-congruent sub-beam coverage
US6134437A (en) 1997-06-13 2000-10-17 Ericsson Inc. Dual-mode satellite/cellular phone architecture with physically separable mode
US6157811A (en) 1994-01-11 2000-12-05 Ericsson Inc. Cellular/satellite communications system with improved frequency re-use
US6157834A (en) 1997-12-29 2000-12-05 Motorola, Inc. Terrestrial and satellite cellular network interoperability
US6160994A (en) 1996-12-19 2000-12-12 Globalstar L.P. Interactive fixed and mobile satellite network
EP1059826A1 (en) 1998-12-07 2000-12-13 Mitsubishi Denki Kabushiki Kaisha Mobile communication device and mobile communication system
US6198921B1 (en) 1998-11-16 2001-03-06 Emil Youssefzadeh Method and system for providing rural subscriber telephony service using an integrated satellite/cell system
US6198730B1 (en) 1998-10-13 2001-03-06 Motorola, Inc. Systems and method for use in a dual mode satellite communications system
US6201967B1 (en) 1996-09-09 2001-03-13 Ico Services Ltd Communications apparatus and method
US6240124B1 (en) 1995-06-06 2001-05-29 Globalstar L.P. Closed loop power control for low earth orbit satellite communications system
US6253080B1 (en) 1999-07-08 2001-06-26 Globalstar L.P. Low earth orbit distributed gateway communication system
US6256497B1 (en) 1997-04-01 2001-07-03 Ico Services Ltd Interworking between telecommunications networks
FR2803713A1 (en) 2000-01-07 2001-07-13 Aerospatiale Matra Remote telephone location telecommunications system having base stations remote locations satellite communicating routing centre telephone line connected using standard mobile telephone components.
US6324405B1 (en) 1996-09-09 2001-11-27 Ico Services Ltd. Communications apparatus and method for mobile platforms having a plurality of users
US6339707B1 (en) 1997-06-02 2002-01-15 Hughes Electronics Corporation Method and system for providing wideband communications to mobile users in a satellite-based network
EP1193989A1 (en) 2000-05-01 2002-04-03 Mitsubishi Denki Kabushiki Kaisha Connection-control method for mobile communication system
US6418147B1 (en) 1998-01-21 2002-07-09 Globalstar Lp Multiple vocoder mobile satellite telephone system
US20020122408A1 (en) 2000-02-29 2002-09-05 Mullins Dennis R Satellite communications with satellite routing according to channels assignment signals
US6449461B1 (en) 1996-07-15 2002-09-10 Celsat America, Inc. System for mobile communications in coexistence with communication systems having priority
US20020146979A1 (en) 2001-02-12 2002-10-10 Regulinski Paul Lucian Communications apparatus and method
US20020177465A1 (en) 2001-05-10 2002-11-28 Robinett Robert L. Multi-mode satellite and terrestrial communication device
US20030003815A1 (en) 2000-12-20 2003-01-02 Yoshiko Yamada Communication satellite/land circuits selection communications system
US20030022625A1 (en) 1999-08-10 2003-01-30 Otten David D. Hybrid satellite communications system
US6522865B1 (en) 1999-08-10 2003-02-18 David D. Otten Hybrid satellite communications system
US20030054762A1 (en) 2001-09-14 2003-03-20 Karabinis Peter D. Multi-band/multi-mode satellite radiotelephone communications systems and methods
US20030054815A1 (en) 2001-09-14 2003-03-20 Karabinis Peter D. Methods and systems for modifying satellite antenna cell patterns in response to terrestrial reuse of satellite frequencies
US20030068978A1 (en) 2001-09-14 2003-04-10 Karabinis Peter D. Space-based network architectures for satellite radiotelephone systems
US6570858B1 (en) 1999-11-01 2003-05-27 Motorola, Inc. Satellite-based communications system with terrestrial repeater and method therefor
US6603967B1 (en) 1997-09-03 2003-08-05 Nokia Corporation Call routing in a radio system
US20030149986A1 (en) 1999-08-10 2003-08-07 Mayfield William W. Security system for defeating satellite television piracy
US20030153308A1 (en) 2001-09-14 2003-08-14 Karabinis Peter D. Staggered sectorization for terrestrial reuse of satellite frequencies
US6628919B1 (en) 2000-08-09 2003-09-30 Hughes Electronics Corporation Low-cost multi-mission broadband communications payload
US6684057B2 (en) 2001-09-14 2004-01-27 Mobile Satellite Ventures, Lp Systems and methods for terrestrial reuse of cellular satellite frequency spectrum
US20040072539A1 (en) 2002-06-27 2004-04-15 Monte Paul A. Resource allocation to terrestrial and satellite services
US6735437B2 (en) 1998-06-26 2004-05-11 Hughes Electronics Corporation Communication system employing reuse of satellite spectrum for terrestrial communication
US20040102156A1 (en) 2002-11-26 2004-05-27 Loner Patrick J. Systems and methods for sharing uplink bandwidth among satellites in a common orbital slot
US20040121727A1 (en) 2001-09-14 2004-06-24 Karabinis Peter D. Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex mode
US20040142660A1 (en) 2001-09-14 2004-07-22 Churan Gary G. Network-assisted global positioning systems, methods and terminals including doppler shift and code phase estimates
US6775251B1 (en) 1998-09-17 2004-08-10 Globalstar L.P. Satellite communication system providing multi-gateway diversity and improved satellite loading
US6785543B2 (en) 2001-09-14 2004-08-31 Mobile Satellite Ventures, Lp Filters for combined radiotelephone/GPS terminals
US20040192395A1 (en) 2003-03-24 2004-09-30 Karabinis Peter D. Co-channel wireless communication methods and systems using nonsymmetrical alphabets
US20040192200A1 (en) 2003-03-24 2004-09-30 Karabinis Peter D. Satellite assisted push-to-send radioterminal systems and methods
US20040192293A1 (en) 2001-09-14 2004-09-30 Karabinis Peter D. Aggregate radiated power control for multi-band/multi-mode satellite radiotelephone communications systems and methods
US20040203742A1 (en) 2002-12-12 2004-10-14 Karabinis Peter D. Systems and methods for increasing capacity and/or quality of service of terrestrial cellular and satellite systems using terrestrial reception of satellite band frequencies
US20040203393A1 (en) 2002-03-13 2004-10-14 Xiang Chen System and method for offsetting channel spectrum to reduce interference between two communication networks
US6813493B2 (en) 2001-03-01 2004-11-02 Alcatel Cellular mobile telephone system that can be used on board a vehicle
US20040240525A1 (en) 2003-05-29 2004-12-02 Karabinis Peter D. Wireless communications methods and apparatus using licensed-use system protocols with unlicensed-use access points
US20050026606A1 (en) 2003-07-28 2005-02-03 Karabinis Peter D. Systems and methods for modifying antenna radiation patterns of peripheral base stations of a terrestrial network to allow reduced interference
US6856787B2 (en) 2002-02-12 2005-02-15 Mobile Satellite Ventures, Lp Wireless communications systems and methods using satellite-linked remote terminal interface subsystems
US20050037749A1 (en) 2003-07-30 2005-02-17 Karabinis Peter D. Intra-and/or inter-system interference reducing systems and methods for satellite communications systems
US6859652B2 (en) 2000-08-02 2005-02-22 Mobile Satellite Ventures, Lp Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
US20050041619A1 (en) 2003-08-22 2005-02-24 Karabinis Peter D. Wireless systems, methods and devices employing forward- and/or return-link carriers having different numbers of sub-band carriers
US20050064813A1 (en) 2003-09-11 2005-03-24 Karabinis Peter D. Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint
US6879829B2 (en) 2003-05-16 2005-04-12 Mobile Satellite Ventures, Lp Systems and methods for handover between space based and terrestrial radioterminal communications, and for monitoring terrestrially reused satellite frequencies at a radioterminal to reduce potential interference
US20050090256A1 (en) 2003-09-23 2005-04-28 Santanu Dutta Systems and methods for mobility management in overlaid mobile communications systems
US6889042B2 (en) * 1998-10-28 2005-05-03 Alcatel Cellular mobile telephone system usable on board a passenger transport vehicle
US6892068B2 (en) 2000-08-02 2005-05-10 Mobile Satellite Ventures, Lp Coordinated satellite-terrestrial frequency reuse
US20050118948A1 (en) 2001-09-14 2005-06-02 Karabinis Peter D. Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex and/or frequency-division duplex mode
US20050136836A1 (en) 2003-07-30 2005-06-23 Karabinis Peter D. Additional intra-and/or inter-system interference reducing systems and methods for satellite communications systems
US20050164700A1 (en) 2004-01-22 2005-07-28 Karabinis Peter D. Satellite with different size service link antennas and radioterminal communication methods using same
US6937857B2 (en) 2002-05-28 2005-08-30 Mobile Satellite Ventures, Lp Systems and methods for reducing satellite feeder link bandwidth/carriers in cellular satellite systems
US20050201449A1 (en) 2004-03-09 2005-09-15 Churan Gary G. Code synchronization in CDMA satellite wireless communications system using uplink channel detection
US20050208890A1 (en) 2001-09-14 2005-09-22 Mobile Satellite Ventures, Lp Systems and methods for monitoring selected terrestrially used satellite frequency signals to reduce potential interference
US20050227618A1 (en) 2004-03-22 2005-10-13 Karabinis Peter D Multi-band satellite and/or ancillary terrestrial component radioterminal communications systems and methods with diversity operation
US20050239404A1 (en) 2004-04-07 2005-10-27 Karabinis Peter D Satellite/hands-free interlock systems and/or companion devices for radioterminals and related methods
US20050239403A1 (en) 2004-04-12 2005-10-27 Karabinis Peter D Systems and methods with different utilization of satellite frequency bands by a space-based network and an ancillary terrestrial network
US20050239399A1 (en) 2004-04-21 2005-10-27 Karabinis Peter D Mobile terminals and set top boxes including multiple satellite band service links, and related systems and methods
US20050239457A1 (en) 2004-04-20 2005-10-27 Levin Lon C Extraterrestrial communications systems and methods including ancillary extraterrestrial components
US20050245192A1 (en) 2001-09-14 2005-11-03 Mobile Satellite Ventures, Lp Radiotelephones and operating methods that use a single radio frequency chain and a single baseband processor for space-based and terrestrial communications
US20050260947A1 (en) 2004-05-18 2005-11-24 Karabinis Peter D Satellite communications systems and methods using radiotelephone location-based beamforming
US20050260984A1 (en) 2004-05-21 2005-11-24 Mobile Satellite Ventures, Lp Systems and methods for space-based use of terrestrial cellular frequency spectrum
US6975837B1 (en) 2003-01-21 2005-12-13 The Directv Group, Inc. Method and apparatus for reducing interference between terrestrially-based and space-based broadcast systems
US20050282542A1 (en) 2001-09-14 2005-12-22 Mobile Satellite Ventures, Lp Systems and methods for terrestrial use of cellular satellite frequency spectrum
US20050288011A1 (en) 2004-06-25 2005-12-29 Santanu Dutta Methods of ground based beamforming and on-board frequency translation and related systems
US6999720B2 (en) 2001-09-14 2006-02-14 Atc Technologies, Llc Spatial guardbands for terrestrial reuse of satellite frequencies
US20060040613A1 (en) 2004-08-11 2006-02-23 Mobile Satellite Venturs, Lp Satellite-band spectrum utilization for reduced or minimum interference
US7031702B2 (en) 2001-09-14 2006-04-18 Atc Technologies, Llc Additional systems and methods for monitoring terrestrially reused satellite frequencies to reduce potential interference
US7039400B2 (en) 2001-09-14 2006-05-02 Atc Technologies, Llc Systems and methods for monitoring terrestrially reused satellite frequencies to reduce potential interference
US20060094420A1 (en) 2004-11-02 2006-05-04 Karabinis Peter D Multi frequency band/multi air interface/multi spectrum reuse cluster size/multi cell size satellite radioterminal communicaitons systems and methods
US20060094352A1 (en) 2004-11-02 2006-05-04 Karabinis Peter D Apparatus and methods for power control in satellite communications systems with satellite-linked terrestrial stations
US20060105707A1 (en) 2004-11-16 2006-05-18 Mobile Satellite Ventures, Lp Satellite communications systems, components and methods for operating shared satellite gateways
US20060135058A1 (en) 2004-12-16 2006-06-22 Atc Technologies, Llc Location-based broadcast messaging for radioterminal users

Patent Citations (153)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901307A (en) 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US5394561A (en) 1990-03-06 1995-02-28 Motorola, Inc. Networked satellite and terrestrial cellular radiotelephone systems
US5073900A (en) 1990-03-19 1991-12-17 Mallinckrodt Albert J Integrated cellular communications system
US5878329A (en) 1990-03-19 1999-03-02 Celsat America, Inc. Power control of an integrated cellular communications system
US5612703A (en) 1990-03-19 1997-03-18 Celsat America, Inc. position determination in an integrated cellular communications system
US5339330A (en) 1990-03-19 1994-08-16 David D. Otten Integrated cellular communications system
US6108561A (en) 1990-03-19 2000-08-22 Celsat America, Inc. Power control of an integrated cellular communications system
US5446756A (en) 1990-03-19 1995-08-29 Celsat America, Inc. Integrated cellular communications system
US5940753A (en) 1990-03-19 1999-08-17 Celsat America, Inc. Controller for cellular communications system
US5995832A (en) 1990-03-19 1999-11-30 Celsat America, Inc. Communications system
US5835857A (en) 1990-03-19 1998-11-10 Celsat America, Inc. Position determination for reducing unauthorized use of a communication system
US5832379A (en) 1990-03-19 1998-11-03 Celsat America, Inc. Communications system including control means for designating communication between space nodes and surface nodes
EP0506255A2 (en) 1991-03-29 1992-09-30 Space Systems / Loral Inc. Wireless telephone/satellite roaming system
US5303286A (en) 1991-03-29 1994-04-12 Space Systems/Loral, Inc. Wireless telephone/satellite roaming system
EP0506255B1 (en) 1991-03-29 1996-11-20 Space Systems / Loral Inc. Wireless telephone/satellite roaming system
US5448623A (en) 1991-10-10 1995-09-05 Space Systems/Loral, Inc. Satellite telecommunications system using network coordinating gateways operative with a terrestrial communication system
US6067442A (en) 1991-10-10 2000-05-23 Globalstar L.P. Satellite communications system having distributed user assignment and resource assignment with terrestrial gateways
EP0597225A1 (en) 1992-11-12 1994-05-18 Motorola, Inc. Network of hierarchical communication systems and method therefor
US5631898A (en) 1994-01-11 1997-05-20 Ericsson Inc. Cellular/satellite communications system with improved frequency re-use
US6157811A (en) 1994-01-11 2000-12-05 Ericsson Inc. Cellular/satellite communications system with improved frequency re-use
US5555257A (en) 1994-01-11 1996-09-10 Ericsson Ge Mobile Communications Inc. Cellular/satellite communications system with improved frequency re-use
US5848060A (en) 1994-01-11 1998-12-08 Ericsson Inc. Cellular/satellite communications system with improved frequency re-use
US5812947A (en) 1994-01-11 1998-09-22 Ericsson Inc. Cellular/satellite communications systems with improved frequency re-use
US5511233A (en) 1994-04-05 1996-04-23 Celsat America, Inc. System and method for mobile communications in coexistence with established communications systems
US5852721A (en) 1994-06-08 1998-12-22 Hughes Electronics Corporation Method and apparatus for selectively retrieving information from a source computer using a terrestrial or satellite interface
US5584046A (en) 1994-11-04 1996-12-10 Cornell Research Foundation, Inc. Method and apparatus for spectrum sharing between satellite and terrestrial communication services using temporal and spatial synchronization
US5765098A (en) 1995-01-02 1998-06-09 Agence Spatiale Europeenne Method and system for transmitting radio signals between a fixed terrestrial station and user mobile terminals via a network of satellites
EP0748065A2 (en) 1995-06-06 1996-12-11 Globalstar L.P. Satellite repeater diversity resource management system
US6240124B1 (en) 1995-06-06 2001-05-29 Globalstar L.P. Closed loop power control for low earth orbit satellite communications system
US6097752A (en) 1995-06-06 2000-08-01 Globalstar L.P. Closed loop power control for low earth orbit satellite communications system
US5619525A (en) 1995-06-06 1997-04-08 Globalstar L.P. Closed loop power control for low earth orbit satellite communications system
EP0755163A2 (en) 1995-07-20 1997-01-22 Ntt Mobile Communications Network Inc. Mobile communication system using efficient service area expansion scheme
EP0762669A2 (en) 1995-08-18 1997-03-12 Ntt Mobile Communications Network Inc. Communication mode switching method for mobile station
EP0762669A3 (en) 1995-08-18 1998-11-11 Ntt Mobile Communications Network Inc. Communication mode switching method for mobile station
US5991345A (en) 1995-09-22 1999-11-23 Qualcomm Incorporated Method and apparatus for diversity enhancement using pseudo-multipath signals
US5930708A (en) 1996-03-21 1999-07-27 Trw Inc. Communications satellite router-formatter
EP0797319A2 (en) 1996-03-21 1997-09-24 Trw Inc. Communications satellite router-formatter
US6449461B1 (en) 1996-07-15 2002-09-10 Celsat America, Inc. System for mobile communications in coexistence with communication systems having priority
US5926758A (en) 1996-08-26 1999-07-20 Leo One Ip, L.L.C. Radio frequency sharing methods for satellite systems
EP0831599A2 (en) 1996-09-04 1998-03-25 Globalstar L.P. Automatic satellite/terrestrial mobile terminal roaming system
EP0831599A3 (en) 1996-09-04 1999-01-20 Globalstar L.P. Automatic satellite/terrestrial mobile terminal roaming system
US6233463B1 (en) 1996-09-04 2001-05-15 Globalstar L.P. Automatic satellite terrestrial mobile terminal roaming system and method
US6324405B1 (en) 1996-09-09 2001-11-27 Ico Services Ltd. Communications apparatus and method for mobile platforms having a plurality of users
US6201967B1 (en) 1996-09-09 2001-03-13 Ico Services Ltd Communications apparatus and method
US5761605A (en) 1996-10-11 1998-06-02 Northpoint Technology, Ltd. Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals
US6169878B1 (en) 1996-10-11 2001-01-02 Northpoint Technology, Ltd. Apparatus and method for transmitting terrestrial signals on a common frequency with satellite transmissions
US5887258A (en) 1996-10-28 1999-03-23 Societe National Industrielle Et Aerospatiale Device for allowing the use in an aircraft of radio communication means
US6055425A (en) 1996-11-11 2000-04-25 Nokia Telecomunications Oy Aeronautical cellular network
US6160994A (en) 1996-12-19 2000-12-12 Globalstar L.P. Interactive fixed and mobile satellite network
US6091933A (en) 1997-01-03 2000-07-18 Globalstar L.P. Multiple satellite system power allocation by communication link optimization
US6023605A (en) 1997-03-19 2000-02-08 Fujitsu Limited Dual layer satellite communications system and geostationary satellite therefor
US5937332A (en) 1997-03-21 1999-08-10 Ericsson, Inc. Satellite telecommunications repeaters and retransmission methods
US6256497B1 (en) 1997-04-01 2001-07-03 Ico Services Ltd Interworking between telecommunications networks
US6072430A (en) 1997-04-09 2000-06-06 Ico Services Ltd. Satellite terminal position determination
US5884142A (en) 1997-04-15 1999-03-16 Globalstar L.P. Low earth orbit distributed gateway communication system
US6052558A (en) 1997-04-28 2000-04-18 Motorola, Inc. Networked repeater
US6339707B1 (en) 1997-06-02 2002-01-15 Hughes Electronics Corporation Method and system for providing wideband communications to mobile users in a satellite-based network
US6134437A (en) 1997-06-13 2000-10-17 Ericsson Inc. Dual-mode satellite/cellular phone architecture with physically separable mode
US6011951A (en) 1997-08-22 2000-01-04 Teledesic Llc Technique for sharing radio frequency spectrum in multiple satellite communication systems
US6052586A (en) 1997-08-29 2000-04-18 Ericsson Inc. Fixed and mobile satellite radiotelephone systems and methods with capacity sharing
US6085094A (en) 1997-08-29 2000-07-04 Nortel Networks Corporation Method for optimizing spectral re-use
US6603967B1 (en) 1997-09-03 2003-08-05 Nokia Corporation Call routing in a radio system
US5907541A (en) 1997-09-17 1999-05-25 Lockheed Martin Corp. Architecture for an integrated mobile and fixed telecommunications system including a spacecraft
US6101385A (en) 1997-10-09 2000-08-08 Globalstar L.P. Satellite communication service with non-congruent sub-beam coverage
US6052560A (en) 1997-10-15 2000-04-18 Ericsson Inc Satellite system utilizing a plurality of air interface standards and method employing same
US6157834A (en) 1997-12-29 2000-12-05 Motorola, Inc. Terrestrial and satellite cellular network interoperability
US6418147B1 (en) 1998-01-21 2002-07-09 Globalstar Lp Multiple vocoder mobile satellite telephone system
US6735437B2 (en) 1998-06-26 2004-05-11 Hughes Electronics Corporation Communication system employing reuse of satellite spectrum for terrestrial communication
US6775251B1 (en) 1998-09-17 2004-08-10 Globalstar L.P. Satellite communication system providing multi-gateway diversity and improved satellite loading
US6198730B1 (en) 1998-10-13 2001-03-06 Motorola, Inc. Systems and method for use in a dual mode satellite communications system
EP0998062A1 (en) 1998-10-28 2000-05-03 ALCALTEL ALSTHOM Compagnie Générale d'Electricité Cellular radiotelephony device usable on board of a passengers transport vehicle
US6889042B2 (en) * 1998-10-28 2005-05-03 Alcatel Cellular mobile telephone system usable on board a passenger transport vehicle
US6198921B1 (en) 1998-11-16 2001-03-06 Emil Youssefzadeh Method and system for providing rural subscriber telephony service using an integrated satellite/cell system
EP1059826A1 (en) 1998-12-07 2000-12-13 Mitsubishi Denki Kabushiki Kaisha Mobile communication device and mobile communication system
US6253080B1 (en) 1999-07-08 2001-06-26 Globalstar L.P. Low earth orbit distributed gateway communication system
US20030022625A1 (en) 1999-08-10 2003-01-30 Otten David D. Hybrid satellite communications system
US20030149986A1 (en) 1999-08-10 2003-08-07 Mayfield William W. Security system for defeating satellite television piracy
US6522865B1 (en) 1999-08-10 2003-02-18 David D. Otten Hybrid satellite communications system
US6570858B1 (en) 1999-11-01 2003-05-27 Motorola, Inc. Satellite-based communications system with terrestrial repeater and method therefor
US20020151303A1 (en) 2000-01-07 2002-10-17 D'allest Frederic Telecommunication system with a relay satellite
FR2803713A1 (en) 2000-01-07 2001-07-13 Aerospatiale Matra Remote telephone location telecommunications system having base stations remote locations satellite communicating routing centre telephone line connected using standard mobile telephone components.
US20020122408A1 (en) 2000-02-29 2002-09-05 Mullins Dennis R Satellite communications with satellite routing according to channels assignment signals
EP1193989A1 (en) 2000-05-01 2002-04-03 Mitsubishi Denki Kabushiki Kaisha Connection-control method for mobile communication system
US6892068B2 (en) 2000-08-02 2005-05-10 Mobile Satellite Ventures, Lp Coordinated satellite-terrestrial frequency reuse
US20050181786A1 (en) 2000-08-02 2005-08-18 Karabinis Peter D. Coordinated satellite-terrestrial frequency reuse
US20050079816A1 (en) 2000-08-02 2005-04-14 Karabinis Peter D. Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
US20050164701A1 (en) 2000-08-02 2005-07-28 Karabinis Peter D. Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
US6859652B2 (en) 2000-08-02 2005-02-22 Mobile Satellite Ventures, Lp Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
US20050265273A1 (en) 2000-08-02 2005-12-01 Karabinis Peter D Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
US20050272369A1 (en) 2000-08-02 2005-12-08 Karabinis Peter D Coordinated satellite-terrestrial frequency reuse
US6628919B1 (en) 2000-08-09 2003-09-30 Hughes Electronics Corporation Low-cost multi-mission broadband communications payload
US20030003815A1 (en) 2000-12-20 2003-01-02 Yoshiko Yamada Communication satellite/land circuits selection communications system
US20020146979A1 (en) 2001-02-12 2002-10-10 Regulinski Paul Lucian Communications apparatus and method
US6813493B2 (en) 2001-03-01 2004-11-02 Alcatel Cellular mobile telephone system that can be used on board a vehicle
US20020177465A1 (en) 2001-05-10 2002-11-28 Robinett Robert L. Multi-mode satellite and terrestrial communication device
US20060040657A1 (en) 2001-09-14 2006-02-23 Atc Technologies, Llc Space-based network architectures for satellite radiotelephone systems
US20030054762A1 (en) 2001-09-14 2003-03-20 Karabinis Peter D. Multi-band/multi-mode satellite radiotelephone communications systems and methods
US20060040659A1 (en) 2001-09-14 2006-02-23 Atc Technologies, Llc Spatial guardbands for terrestrial reuse of satellite frequencies
US20040192293A1 (en) 2001-09-14 2004-09-30 Karabinis Peter D. Aggregate radiated power control for multi-band/multi-mode satellite radiotelephone communications systems and methods
US20050208890A1 (en) 2001-09-14 2005-09-22 Mobile Satellite Ventures, Lp Systems and methods for monitoring selected terrestrially used satellite frequency signals to reduce potential interference
US20050282542A1 (en) 2001-09-14 2005-12-22 Mobile Satellite Ventures, Lp Systems and methods for terrestrial use of cellular satellite frequency spectrum
US20040142660A1 (en) 2001-09-14 2004-07-22 Churan Gary G. Network-assisted global positioning systems, methods and terminals including doppler shift and code phase estimates
US6785543B2 (en) 2001-09-14 2004-08-31 Mobile Satellite Ventures, Lp Filters for combined radiotelephone/GPS terminals
US20060135060A1 (en) 2001-09-14 2006-06-22 Atc Technologies, Llc Methods and systems for configuring satellite antenna cell patterns in response to terrestrial use of satellite frequencies
US20030068978A1 (en) 2001-09-14 2003-04-10 Karabinis Peter D. Space-based network architectures for satellite radiotelephone systems
US7062267B2 (en) 2001-09-14 2006-06-13 Atc Technologies, Llc Methods and systems for modifying satellite antenna cell patterns in response to terrestrial reuse of satellite frequencies
US20040121727A1 (en) 2001-09-14 2004-06-24 Karabinis Peter D. Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex mode
US20060111041A1 (en) 2001-09-14 2006-05-25 Karabinis Peter D Aggregate radiated power control for multi-band/multi-mode satellite radiotelephone communications systems and methods
US20050118948A1 (en) 2001-09-14 2005-06-02 Karabinis Peter D. Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex and/or frequency-division duplex mode
US7039400B2 (en) 2001-09-14 2006-05-02 Atc Technologies, Llc Systems and methods for monitoring terrestrially reused satellite frequencies to reduce potential interference
US20030153308A1 (en) 2001-09-14 2003-08-14 Karabinis Peter D. Staggered sectorization for terrestrial reuse of satellite frequencies
US7031702B2 (en) 2001-09-14 2006-04-18 Atc Technologies, Llc Additional systems and methods for monitoring terrestrially reused satellite frequencies to reduce potential interference
US6999720B2 (en) 2001-09-14 2006-02-14 Atc Technologies, Llc Spatial guardbands for terrestrial reuse of satellite frequencies
US6684057B2 (en) 2001-09-14 2004-01-27 Mobile Satellite Ventures, Lp Systems and methods for terrestrial reuse of cellular satellite frequency spectrum
US7006789B2 (en) 2001-09-14 2006-02-28 Atc Technologies, Llc Space-based network architectures for satellite radiotelephone systems
US20050245192A1 (en) 2001-09-14 2005-11-03 Mobile Satellite Ventures, Lp Radiotelephones and operating methods that use a single radio frequency chain and a single baseband processor for space-based and terrestrial communications
US20030054815A1 (en) 2001-09-14 2003-03-20 Karabinis Peter D. Methods and systems for modifying satellite antenna cell patterns in response to terrestrial reuse of satellite frequencies
US6856787B2 (en) 2002-02-12 2005-02-15 Mobile Satellite Ventures, Lp Wireless communications systems and methods using satellite-linked remote terminal interface subsystems
US20040203393A1 (en) 2002-03-13 2004-10-14 Xiang Chen System and method for offsetting channel spectrum to reduce interference between two communication networks
US20050221757A1 (en) 2002-05-28 2005-10-06 Mobile Satellite Ventures, Lp Systems and methods for reducing satellite feeder link bandwidth/carriers in cellular satellite systems
US6937857B2 (en) 2002-05-28 2005-08-30 Mobile Satellite Ventures, Lp Systems and methods for reducing satellite feeder link bandwidth/carriers in cellular satellite systems
US20040072539A1 (en) 2002-06-27 2004-04-15 Monte Paul A. Resource allocation to terrestrial and satellite services
US20040102156A1 (en) 2002-11-26 2004-05-27 Loner Patrick J. Systems and methods for sharing uplink bandwidth among satellites in a common orbital slot
US20040203742A1 (en) 2002-12-12 2004-10-14 Karabinis Peter D. Systems and methods for increasing capacity and/or quality of service of terrestrial cellular and satellite systems using terrestrial reception of satellite band frequencies
US6975837B1 (en) 2003-01-21 2005-12-13 The Directv Group, Inc. Method and apparatus for reducing interference between terrestrially-based and space-based broadcast systems
US20040192200A1 (en) 2003-03-24 2004-09-30 Karabinis Peter D. Satellite assisted push-to-send radioterminal systems and methods
US20040192395A1 (en) 2003-03-24 2004-09-30 Karabinis Peter D. Co-channel wireless communication methods and systems using nonsymmetrical alphabets
US20050170834A1 (en) 2003-05-16 2005-08-04 Santanu Dutta Systems and methods for handover between space based and terrestrial radioterminal communications
US6879829B2 (en) 2003-05-16 2005-04-12 Mobile Satellite Ventures, Lp Systems and methods for handover between space based and terrestrial radioterminal communications, and for monitoring terrestrially reused satellite frequencies at a radioterminal to reduce potential interference
US20040240525A1 (en) 2003-05-29 2004-12-02 Karabinis Peter D. Wireless communications methods and apparatus using licensed-use system protocols with unlicensed-use access points
US20050026606A1 (en) 2003-07-28 2005-02-03 Karabinis Peter D. Systems and methods for modifying antenna radiation patterns of peripheral base stations of a terrestrial network to allow reduced interference
US20050037749A1 (en) 2003-07-30 2005-02-17 Karabinis Peter D. Intra-and/or inter-system interference reducing systems and methods for satellite communications systems
US20050136836A1 (en) 2003-07-30 2005-06-23 Karabinis Peter D. Additional intra-and/or inter-system interference reducing systems and methods for satellite communications systems
US20050041619A1 (en) 2003-08-22 2005-02-24 Karabinis Peter D. Wireless systems, methods and devices employing forward- and/or return-link carriers having different numbers of sub-band carriers
US20050064813A1 (en) 2003-09-11 2005-03-24 Karabinis Peter D. Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint
US20050090256A1 (en) 2003-09-23 2005-04-28 Santanu Dutta Systems and methods for mobility management in overlaid mobile communications systems
US20050164700A1 (en) 2004-01-22 2005-07-28 Karabinis Peter D. Satellite with different size service link antennas and radioterminal communication methods using same
US20050201449A1 (en) 2004-03-09 2005-09-15 Churan Gary G. Code synchronization in CDMA satellite wireless communications system using uplink channel detection
US20050227618A1 (en) 2004-03-22 2005-10-13 Karabinis Peter D Multi-band satellite and/or ancillary terrestrial component radioterminal communications systems and methods with diversity operation
US20050239404A1 (en) 2004-04-07 2005-10-27 Karabinis Peter D Satellite/hands-free interlock systems and/or companion devices for radioterminals and related methods
US20050239403A1 (en) 2004-04-12 2005-10-27 Karabinis Peter D Systems and methods with different utilization of satellite frequency bands by a space-based network and an ancillary terrestrial network
US20050239457A1 (en) 2004-04-20 2005-10-27 Levin Lon C Extraterrestrial communications systems and methods including ancillary extraterrestrial components
US20050239399A1 (en) 2004-04-21 2005-10-27 Karabinis Peter D Mobile terminals and set top boxes including multiple satellite band service links, and related systems and methods
US20050260947A1 (en) 2004-05-18 2005-11-24 Karabinis Peter D Satellite communications systems and methods using radiotelephone location-based beamforming
US20050260984A1 (en) 2004-05-21 2005-11-24 Mobile Satellite Ventures, Lp Systems and methods for space-based use of terrestrial cellular frequency spectrum
US20050288011A1 (en) 2004-06-25 2005-12-29 Santanu Dutta Methods of ground based beamforming and on-board frequency translation and related systems
US20060040613A1 (en) 2004-08-11 2006-02-23 Mobile Satellite Venturs, Lp Satellite-band spectrum utilization for reduced or minimum interference
US20060094420A1 (en) 2004-11-02 2006-05-04 Karabinis Peter D Multi frequency band/multi air interface/multi spectrum reuse cluster size/multi cell size satellite radioterminal communicaitons systems and methods
US7639981B2 (en) * 2004-11-02 2009-12-29 Atc Technologies, Llc Apparatus and methods for power control in satellite communications systems with satellite-linked terrestrial stations
US20060094352A1 (en) 2004-11-02 2006-05-04 Karabinis Peter D Apparatus and methods for power control in satellite communications systems with satellite-linked terrestrial stations
US20060105707A1 (en) 2004-11-16 2006-05-18 Mobile Satellite Ventures, Lp Satellite communications systems, components and methods for operating shared satellite gateways
US20060135058A1 (en) 2004-12-16 2006-06-22 Atc Technologies, Llc Location-based broadcast messaging for radioterminal users
US20060135070A1 (en) 2004-12-16 2006-06-22 Atc Technologies, Llc Prediction of uplink interference potential generated by an ancillary terrestrial network and/or radioterminals

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
Ayyagari et al., "A satellite-augmented cellular network concept", Wireless Networks, Vo. 4, 1998, pp. 189-198.
Extended European Search Report ( 7 pages) corresponding to European Application No. 08008122.7; Issue Date: Apr. 14, 2009.
Global.com, "Globalstar Demonstrates World's First Prototype of Terrestrial System to Supplemental Satellite Phones," http:www.globalcomsatphone.com/globalcom/globalstar13 terrestrial13 system.html, Jul. 18, 2002, 2 pages.
Haykin, Simon. Communication Systems. John Wiley & Sons 1978. 242-244, 462-463.
International Search Report, PCT/US03/04038, May 26, 2003.
Stiffler, J.J. Theory of synchronous communications. Englewood Cliffs, NJ: Prentice-Hall, Inc., 1971. 3-5, Print.

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100039967A1 (en) * 2001-09-14 2010-02-18 Atc Technologies, Llc Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex and/or frequency-division duplex mode
US8078101B2 (en) 2001-09-14 2011-12-13 Atc Technologies, Llc Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex and/or frequency-division duplex mode
US8340592B2 (en) 2003-03-24 2012-12-25 Atc Technologies, Llc Radioterminals and operating methods that receive multiple measures of information from multiple sources
US20110201326A1 (en) * 2003-03-24 2011-08-18 Atc Technologies, Llc Radioterminals and operating methods that receive multiple measures of information from multiple sources
US8238819B2 (en) 2003-09-11 2012-08-07 Atc Technologies, Llc Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint
US8131293B2 (en) 2003-09-23 2012-03-06 Atc Technologies, Llc Systems and methods for mobility management in overlaid mobile communications systems
US20110171986A1 (en) * 2004-03-08 2011-07-14 Levin Lon C Communications Systems and Methods Including Emission Detection
US8655398B2 (en) 2004-03-08 2014-02-18 Atc Technologies, Llc Communications systems and methods including emission detection
US20110212694A1 (en) * 2004-08-11 2011-09-01 Karabinis Peter D Satellite-Band Spectrum Utilization For Reduced Or Minimum Interference
US8145126B2 (en) 2004-08-11 2012-03-27 Atc Technologies, Llc Satellite-band spectrum utilization for reduced or minimum interference
US9037078B2 (en) 2004-11-02 2015-05-19 Atc Technologies, Llc Apparatus and methods for power control in satellite communications systems with satellite-linked terrestrial stations
US8169955B2 (en) 2006-06-19 2012-05-01 Atc Technologies, Llc Systems and methods for orthogonal frequency division multiple access (OFDMA) communications over satellite links
US20070293214A1 (en) * 2006-06-19 2007-12-20 Thales Alenia Space France Systems and methods for orthogonal frequency division multiple access (ofdma) communications over satellite links

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