Satellite assisted push-to-send radioterminal systems and methods
First Claim
1. A push-to-send radioterminal communication method comprising:
- using a satellite to route selected push-to-send messages among terrestrial base stations via wireless links between the satellite and the terrestrial base stations;
wherein using a satellite to route selected push-to-send messages among terrestrial base stations comprises;
accessing a listing of terrestrial base stations and push-to-send radioterminals that are communicating therewith;
determining from the listing whether a source push-to-send radioterminal and a destination push-to-send radioterminal are communicating with a single terrestrial base station; and
using the satellite to route a push-to-send message from the source push-to-send radioterminal to the destination push-to-send radioterminal if the source push-to-send radioterminal and the destination push-to-send radioterminal are not communicating with a single terrestrial base station.
17 Assignments
0 Petitions
Accused Products
Abstract
A satellite is used to route push-to-send messages among terrestrial base stations. Reduced push-to-send delays thereby may be provided, when a source push-to-send radioterminal is widely separated from a destination push-to-send radioterminal. Satellite routing only may be used when the source push-to-send radioterminal and the destination push-to-send radioterminal are not communicating with a single terrestrial base station or with a group of terrestrial base stations that are proximate one another. A destination base station that is communicating with the destination push-to-send radioterminal may be determined at the satellite, at a satellite gateway and/or at a central server.
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Citations
109 Claims
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1. A push-to-send radioterminal communication method comprising:
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using a satellite to route selected push-to-send messages among terrestrial base stations via wireless links between the satellite and the terrestrial base stations; wherein using a satellite to route selected push-to-send messages among terrestrial base stations comprises; accessing a listing of terrestrial base stations and push-to-send radioterminals that are communicating therewith; determining from the listing whether a source push-to-send radioterminal and a destination push-to-send radioterminal are communicating with a single terrestrial base station; and using the satellite to route a push-to-send message from the source push-to-send radioterminal to the destination push-to-send radioterminal if the source push-to-send radioterminal and the destination push-to-send radioterminal are not communicating with a single terrestrial base station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A push-to-send radioterminal communication method comprising:
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using a satellite to route selected push-to-send messages among terrestrial base stations via wireless links between the satellite and the terrestrial base stations; wherein using a satellite to route selected push-to-send messages among terrestrial base stations comprises; accessing a listing of terrestrial base stations and push-to-send radioterminals that are communicating therewith; determining from the listing whether a source push-to-send radioterminal and a destination push-to-send radioterminal are communicating with terrestrial base stations that are proximate one another; and using the satellite to route a push-to-send message from the source push-to-send radioterminal to the destination push-to-send radioterminal if the source push-to-send radioterminal and the destination push-to-send radioterminal are not communicating with terrestrial base stations that are proximate one another. - View Dependent Claims (11, 12, 13, 14)
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15. A push-to-send radioterminal communication method comprising:
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using a satellite to route push-to-send messages among terrestrial base stations via wireless links between the satellite and the terrestrial base stations; wherein using a satellite to route push-to-send messages among terrestrial base stations comprises; sending a push-to-send message from a source push-to-send radioterminal to a first terrestrial base station communicating therewith; sending the push-to-send message from the first terrestrial base station to the satellite; sending the push-to-send message from the satellite to a satellite gateway that is associated with the satellite; determining by the satellite gateway, a second terrestrial base station that is communicating with the destination push-to-send radioterminal; sending the push-to-send message from the satellite gateway back to the satellite along with routing information that identifies the second terrestrial base station; sending the push-to-send message from the satellite to the second terrestrial base station; and sending the push-to-send message from the second terrestrial base station to the destination push-to-send radioterminal. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A push-to-send radioterminal communication method comprising:
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using a satellite to route selected push-to-send messages among terrestrial base stations via wireless links between the satellite and the terrestrial base stations; wherein using a satellite to route selected push-to-send messages among terrestrial base stations comprises; determining whether a source push-to-send radioterminal and at least one of a plurality of destination push-to-send radioterminals are not communicating with a single terrestrial base station; and using the satellite to route a push-to-send message from the source push-to-send radioterminal to the plurality of destination push-to-send radioterminals if the source push-to-send radioterminal and at least one of the plurality of destination push-to-send radioterminals are not communicating with the single terrestrial base station.
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40. A push-to-send radioterminal communication method comprising:
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using a satellite to route selected push-to-send messages among terrestrial base stations via wireless links between the satellite and the terrestrial base stations; wherein using a satellite to route selected push-to-send messages among terrestrial base stations comprises; determining whether a source push-to-send radioterminal and at least one of a plurality of destination push-to-send radioterminals are not communicating with a plurality of terrestrial base stations that are proximate one another; and using the satellite to route a push-to-send message from the source push-to-send radioterminal to the plurality of destination push-to-send radioterminals if the source push-to-send radioterminal and at least one of the plurality of destination push-to-send radioterminals are not communicating with the terrestrial base stations that are proximate one another.
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41. A push-to-send radioterminal communication method comprising:
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using a satellite to route push-to-send messages among terrestrial base stations via wireless links between the satellite and the terrestrial base stations; wherein using a satellite to route push-to-send messages among terrestrial base stations comprises; sending a push-to-send message from a source push-to-send radioterminal to a first terrestrial base station communicating therewith; sending the push-to-send message from the first terrestrial base station to the satellite; determining at the satellite, a satellite spot beam that covers a second terrestrial base station that is communicating with the destination push-to-send radioterminal; sending the push-to-send message from the satellite to the second terrestrial base station over the spot beam that was determined; and sending the push-to-send message from the second terrestrial base station to the destination push-to-send radioterminal. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58)
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59. A push-to-send radioterminal communication method comprising:
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using a satellite to route push-to-send messages among terrestrial base stations via wireless links between the satellite and the terrestrial base stations; wherein using a satellite to route push-to-send messages among terrestrial base stations comprises; configuring a first multimode radioterminal to use a first communication protocol and/or a first air interface in response to activation of a push-to-send mode; sending a push-to-send message from the first multimode radioterminal to a first terrestrial base station communicating therewith using the first communication protocol and/or the first air interface; sending the push-to-send message from the first terrestrial base station to the satellite; sending the push-to-send message from the satellite to a second terrestrial base station that is communicating with a second multimode radioterminal; configuring the second multimode radioterminal to use the first communication protocol and/or the first air interface in response to the second terrestrial base station; and sending the push-to-send message from the second terrestrial base station to the second multimode radioterminal using the first communication protocol and/or air interface.
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60. A push-to-send radioterminal communication method comprising:
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using a satellite to route push-to-send messages among terrestrial base stations via wireless links between the satellite and the terrestrial base stations; wherein using a satellite to route push-to-send messages among terrestrial base stations comprises; configuring a first multimode radioterminal to use a first communication protocol and/or a first air interface in response to activation of a push-to-send mode; sending a push-to-send message from the first multimode radioterminal to a first terrestrial base station communicating therewith using the first communication protocol and/or the first air interface; sending the push-to-send message from the first terrestrial base station to the satellite; sending the push-to-send message from the satellite to a second terrestrial base station that is communicating with a second multimode radioterminal; configuring the second multimode radioterminal to use a second communication protocol and/or a second air interface that is different from the first communication protocol and/or the first air interface in response to the second terrestrial base station; and sending the push-to-send message from the second terrestrial base station to the second multimode radioterminal using the second communication protocol and/or air interface.
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61. A push-to-send radioterminal communication method comprising:
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transmitting push-to-send messages among push-to-send radioterminals and terrestrial base stations using a satellite frequency band; and using a satellite to route selected push-to-send messages among terrestrial base stations; wherein using a satellite to route selected push-to-send messages among terrestrial base stations comprises; determining whether a source push-to-send radioterminal and a destination push-to-send radioterminal are communicating with a single terrestrial base station; and using the satellite to route a push-to-send message from the source push-to-send radioterminal to the destination push-to-send radioterminal if the source push-to-send radioterminal and the destination push-to-send radioterminal are not communicating with a single terrestrial base station.
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62. A push-to-send radioterminal communication method comprising:
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transmitting push-to-send messages among push-to-send radioterminals and terrestrial base stations using a satellite frequency band; and using a satellite to route selected push-to-send messages among terrestrial base stations; wherein using a satellite to route selected push-to-send messages among terrestrial base stations comprises; determining whether a source push-to-send radioterminal and a destination push-to-send radioterminal are communicating with terrestrial base stations that are proximate one another; and using the satellite to route a push-to-send message from the source push-to-send radioterminal to the destination push-to-send radioterminal if the source push-to-send radioterminal and the destination push-to-send radioterminal are not communicating with terrestrial base stations that are proximate one another.
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63. A push-to-send radioterminal communication system comprising:
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a terrestrial base station that is configured to transmit push-to-send messages from source push-to-send radioterminals to a satellite via a wireless link from the terrestrial base station to the satellite and to transmit push-to-send messages that are received from the satellite via a wireless link from the satellite to the terrestrial base station to destination push-to-send radioterminals; wherein the terrestrial base station is further configured to determine whether a destination push-to-send radioterminal is communicating with the terrestrial base station and to transmit the push-to-send message from the source push-to-send radioterminal to the satellite if the destination push-to-send radioterminal is not communicating with the terrestrial base station; wherein the terrestrial base station further comprises a listing of terrestrial base stations and push-to-send radioterminals that are communicating therewith; and wherein the terrestrial base station is configured to determine from the listing whether the destination push-to-send radioterminal is communicating with the terrestrial base station. - View Dependent Claims (64, 65, 66, 67, 68, 69, 70, 71, 72)
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73. A push-to-send radioterminal communication system comprising:
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a terrestrial base station that is configured to transmit push-to-send messages from source push-to-send radioterminals to a satellite via a wireless link from the terrestrial base station to the satellite and to transmit push-to-send messages that are received from the satellite via a wireless link from the satellite to the terrestrial base station to destination push-to-send radioterminals; wherein the terrestrial base station is further configured to determine whether a destination push-to-send radioterminal is communicating with another terrestrial base station that is proximate the terrestrial base station and to transmit the push-to-send message from the source push-to-send radioterminal to the satellite if the destination push-to-send radioterminal is not communicating with another terrestrial base station that is proximate the terrestrial base station; wherein the terrestrial base station further comprises a listing of terrestrial base stations and push-to-send radioterminals that are communicating therewith; and wherein the terrestrial base station is configured to determine from the listing whether the destination push-to-send radioterminal is communicating with another terrestrial base station that is proximate the terrestrial base station. - View Dependent Claims (74)
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75. A push-to-send radioterminal communication system comprising:
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a terrestrial base station that is configured to transmit push-to-send messages from source push-to-send radioterminals to a satellite via a wireless link from the terrestrial base station to the satellite and to transmit push-to-send messages that are received from the satellite via a wireless link from the satellite to the terrestrial base station to destination push-to-send radioterminals; wherein the terrestrial base station is further configured to determine whether at least one of a plurality of destination push-to-send radioterminals is not communicating with another terrestrial base station that is proximate the terrestrial base station and to transmit a push-to-send message from the source push-to-send radioterminal to the satellite if at least one of the plurality of destination push-to-send radioterminals is not communicating with another terrestrial base station that is proximate the terrestrial base station.
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76. A push-to-send radioterminal communication system comprising:
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a terrestrial base station that is configured to transmit push-to-send messages from source push-to-send radioterminals to a satellite via a wireless link from the terrestrial base station to the satellite and to transmit push-to-send messages that are received from the satellite via a wireless link from the satellite to the terrestrial base station to destination push-to-send radioterminals; wherein the terrestrial base station is configured to receive a push-to-send message from a source push-to-send radioterminal communicating therewith over a return link using a return link alphabet; and wherein the terrestrial base station is configured to send a push-to-send message to a destination radioterminal over a forward link using a forward link alphabet that has more symbols than the return link alphabet. - View Dependent Claims (77)
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78. A push-to-send radioterminal communication system comprising:
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a satellite gateway that is configured to route selected push-to-send messages among terrestrial base stations via wireless links between the terrestrial base station and a satellite; wherein the satellite gateway is configured to route selected push-to-send messages among terrestrial base stations via wireless links between the terrestrial base stations and the satellite by routing a push-to-send message from a source terrestrial base station that is communicating with a source push-to-send radioterminal to a destination terrestrial base station that is communicating with a destination push-to-send radioterminal if the source terrestrial base station and the destination terrestrial base station are not proximate one another. - View Dependent Claims (79, 80, 81, 82)
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83. A push-to-send radioterminal communication system comprising:
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a satellite gateway that is configured to route selected push-to-send messages among terrestrial base stations via wireless links between the terrestrial base stations and a satellite; wherein the satellite gateway is configured to route selected push-to-send messages among terrestrial base stations via a satellite by routing a push-to-send message from a source terrestrial base station that is communicating with a source push-to-send radioterminal to a destination terrestrial base station that is communicating with a destination push-to-send radioterminal if the source terrestrial base station and the destination terrestrial base station are not identical; wherein the satellite gateway further comprises a listing of terrestrial base stations and push-to-send radioterminals that are communicating therewith; and wherein the satellite gateway is configured to determine the destination terrestrial base station from the listing. - View Dependent Claims (84, 85)
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86. A push-to-send radioterminal communication system comprising:
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a satellite gateway that is configured to route push-to-send messages among terrestrial base stations via wireless links between the terrestrial base stations and a satellite; wherein the satellite gateway is configured to route a push-to-send message among terrestrial base stations by receiving a push-to-send message from the satellite including identification of a destination push-to-send radioterminal, determining a destination terrestrial base station that is communicating with the destination push-to-send radioterminal, and sending the push-to-send message back to the satellite along with information that identifies the destination terrestrial base station. - View Dependent Claims (87, 88)
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89. A push-to-send radioterminal communication system comprising:
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a satellite that is configured to route push-to-send messages among terrestrial base stations via wireless links between the satellite and the terrestrial base stations; wherein the satellite is configured to route push-to-send messages among terrestrial base stations by routing a push-to-send message from a source terrestrial base station that is communicating with a source push-to-send radioterminal to a destination terrestrial base station that is communicating with a destination push-to-send radioterminal if the source terrestrial base station and the destination terrestrial base station are not identical; wherein the satellite further comprises a listing of terrestrial base stations and push-to-send radioterminals that are communicating therewith; and wherein the satellite is configured to determine the destination terrestrial base station from the listing. - View Dependent Claims (90, 91, 92, 93)
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94. A push-to-send radioterminal communication system comprising:
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a satellite that is configured to route push-to-send messages among terrestrial base stations via wireless links between the satellite and the terrestrial base stations; wherein the satellite is configured to route push-to-send messages among terrestrial base stations by routing a push-to-send message from a source terrestrial base station that is communicating with a source push-to-send radioterminal to a destination terrestrial base station that is communicating with a destination push-to-send radioterminal if the source terrestrial base station and the destination terrestrial base station are not proximate one another; wherein the satellite further comprises a listing of terrestrial base stations and push-to-send radioterminals that are communicating therewith; and wherein the satellite is configured to determine the destination terrestrial base station from the listing. - View Dependent Claims (95, 96)
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97. A push-to-send radioterminal communication system comprising:
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a satellite that is configured to route push-to-send messages among terrestrial base stations via wireless links between the satellite and the terrestrial base stations; wherein the satellite is further configured to receive a push-to-send message from a source terrestrial base station including identification of a destination push-to-send radioterminal, and to send the push-to-send message from the satellite to a destination terrestrial base station that is communicating with the destination push-to-send radioterminal; and wherein the satellite is configured to selectively determine a destination terrestrial base station that is communicating with the destination push-to-send radioterminal for a first push-to-send message from the source push-to-send radioterminal to the destination push-to-send radioterminal but not for subsequent push-to-send messages from the source push-to-send send radioterminal to the destination push-to-send radioterminal that are closely spaced in time to the first push-to-send message from the source push-to-send radioterminal to the destination push-to-send radioterminal. - View Dependent Claims (98, 99, 100)
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101. A push-to-send radioterminal communication system comprising:
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a satellite that is configured to route push-to-send messages among terrestrial base stations via wireless links between the satellite and the terrestrial base stations; wherein the satellite is further configured to receive a push-to-send message from a source terrestrial base station including identification of a destination push-to-send radioterminal, and to send the push-to-send message from the satellite to a destination terrestrial base station that is communicating with the destination push-to-send radioterminal; and wherein the following is performed between receiving a push-to-send message from a source terrestrial base station and sending the push-to-send message from the satellite to the destination terrestrial base station; interrogating the destination push-to-send radioterminal to determine whether it is capable of receiving the push-to-send message. - View Dependent Claims (102)
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103. A push-to-send radioterminal communication system comprising:
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a satellite that is configured to route push-to-send messages among terrestrial base stations via wireless links between the satellite and the terrestrial base stations; wherein the satellite is further configured to receive a push-to-send message from a source terrestrial base station including identification of a destination push-to-send radioterminal, and to send the push-to-send message from the satellite to a destination terrestrial base station that is communicating with the destination push-to-send radioterminal; and wherein the satellite is configured to send the push-to-send message from the satellite to the destination terrestrial base station by sending the push-to-send message from the satellite to the destination terrestrial base station using a satellite spot beam that covers a plurality of terrestrial base stations including the destination terrestrial base station.
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104. A push-to-send radioterminal communication system comprising:
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a satellite that is configured to route push-to-send messages among terrestrial base stations via wireless links between the satellite and the terrestrial base stations; wherein the satellite is configured to route push-to-send messages among terrestrial base stations by receiving a push-to-send message from a source terrestrial base station that is communicating with a source push-to-send radioterminal, determining a satellite spot beam that covers a destination terrestrial base station that is communicating with a destination push-to-send radioterminal, and sending the push-to-send message to the destination terrestrial base station over the spot beam that was determined. - View Dependent Claims (105, 106)
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107. A push-to-send radioterminal system comprising:
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a central server that comprises registration information for all push-to-send radioterminals in the push-to-send radioterminal system; wherein the registration information comprises; a listing of terrestrial base stations and push-to-send radioterminals that are communicating therewith; wherein the listing further comprises a listing of likely destination push-to-send radioterminals that is associated with a source push-to-send radioterminal; and wherein the listing further comprises a listing of spot beams that are associated with the terrestrial base stations. - View Dependent Claims (108, 109)
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Specification