Low performance warning system and method for mobile satellite service user terminals
First Claim
Patent Images
1. A mobile satellite telecommunications system, comprising:
- at least one user terminal, at least one satellite in earth orbit; and
at least one gateway bidirectionally coupled to a data communications network;
said user terminal comprising a controller responsive to at least one criterion having been met for activating an indicator for informing a user of a potential for reduced user terminal performance, wherein said at least one criterion is comprised of an occurrence of there being only one satellite through which a communication between the user terminal and the gateway is conducted.
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Abstract
A mobile satellite telecommunications system is disclosed comprising at least a user terminal and a satellite which is in earth orbit and at least a gateway bidirectionally coupled to a data communications network. The user terminal comprises a controller responsive to at least one criterion having been met for activating an indicator to inform a user of a potential for reduced user terminal performance.
9 Citations
20 Claims
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1. A mobile satellite telecommunications system, comprising:
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at least one user terminal, at least one satellite in earth orbit; and at least one gateway bidirectionally coupled to a data communications network; said user terminal comprising a controller responsive to at least one criterion having been met for activating an indicator for informing a user of a potential for reduced user terminal performance, wherein said at least one criterion is comprised of an occurrence of there being only one satellite through which a communication between the user terminal and the gateway is conducted.
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2. A mobile satellite telecommunications system, comprising:
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at least one user terminal, at least one satellite in earth orbit; and at least one gateway bidirectionally coupled to a data communications network; said user terminal comprising a controller responsive to at least one criterion having been met for activating an indicator for informing a user of a potential for reduced user terminal performance, wherein said at least one criterion is comprised of a prediction of an occurrence of there being only one satellite through which a communication between the user terminal and the gateway is conducted.
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3. A mobile satellite telecommunications system, comprising:
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at least one user terminal, at least one satellite in earth orbit; and at least one gateway bidirectionally coupled to a data communications network; said user terminal comprising a controller responsive to at least one criterion having been met for activating an indicator for informing a user of a potential for reduced user terminal performance, wherein said at least one criterion is comprised of an occurrence of there being only one satellite through which a communication between the user terminal and the gateway is conducted, and a further occurrence of an elevation angle between said one satellite and said user terminal falling below a minimum threshold value.
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4. A mobile satellite telecommunications system, comprising:
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at least one user terminal, at least one satellite in earth orbit; and at least one gateway bidirectionally coupled to a data communications network; said user terminal comprising a controller responsive to at least one criterion having been met for activating an indicator for informing a user of a potential for reduced user terminal performance, wherein said at least one criterion is comprised of an occurrence of there being only one satellite through which a communication between the user terminal and the gateway is conducted, and a further occurrence of a signal strength or a signal quality of a link between said one satellite and said user terminal falling below a minimum threshold value.
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5. A mobile satellite telecommunications system, comprising:
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at least one user terminal; at least one satellite in earth orbit; and at least one gateway bidirectionally coupled to a data communications network; said user terminal comprising a controller responsive to at least one criterion having been met for activating an indicator for informing a user of a potential for reduced user terminal performance, wherein said user terminal is responsive to received pilot channel signals for detecting a number of satellites through which a communication between the user terminal and the gateway is conducted.
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6. A mobile satellite telecommunications system, comprising:
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at least one user terminal; at least one satellite in earth orbit; and at least one gateway bidirectionally coupled to a data communications network; said user terminal comprising a controller responsive to a receipt of a message from said gateway, indicating that at least one criterion has been met, for activating an indicator for informing a user of a potential for reduced user terminal performance, wherein said at least one criterion is comprised of an occurrence of there being only one satellite through which a communication between the user terminal and the gateway is conducted. - View Dependent Claims (7, 8, 9, 10)
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11. A method for operating a mobile satellite telecommunications system, comprising:
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providing at least one user terminal, at least one satellite in earth orbit, and at least one gateway bidirectionally coupled to a data communications network; determining that at least one criterion has been met, wherein said at least one criterion is comprised of an occurrence of there being only one satellite through which a communication between the user terminal and the gateway is conducted; and activating an indicator of said user terminal for informing a user of a potential for reduced user terminal performance. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A mobile satellite telecommunications system comprising:
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at least one user terminal; at least one satellite in earth orbit; and at least one gateway bidirectionally coupled to a data communications network; said user terminal comprising a controller responsive to at least one criterion having been met for activating an indicator for informing a user of a potential for reduced user terminal performance; said at least one criterion being comprised of an occurrence of there being only one satellite through which a communication between the user terminal and the gateway is conducted, a further occurrence of an elevation angle between said one satellite and said user terminal falling below a minimum threshold value and a further occurrence of a signal strength or a signal quality of a link between said one satellite and said user terminal falling below a minimum threshold of value.
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19. A mobile satellite telecommunications system comprising:
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at least one user terminal; at least one satellite in earth orbit; and at least one gateway bidirectionally coupled to a data communications network; said user terminal comprising a controller responsive to a receipt of a message from said gateway, indicating that at least one criterion has been met, for activating an indicator for informing a user of a potential for reduced user terminal performance, wherein said at least one criterion is comprised of an occurrence of there being only one satellite through which a communication between the user terminal and the gateway is conducted, a further occurrence of an elevation angle between said one satellite and said user terminal falling below a minimum threshold value, and a further occurrence of a signal strength or a signal quality of a link between said one satellite and said user terminal falling below a minimum threshold value.
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20. A method for operating a mobile satellite telecommunications system comprising:
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providing at least one user terminal; at least one satellite in earth orbit; and at least one gateway bidirectionally coupled to a data communications network; determining the at least one criterion has been met; and activating an indicator of said user terminal for informing a user of a potential for reduced user terminal performance, wherein said at least one criterion is comprised of an occurrence of there being only one satellite through which a communication between the user terminal and the gateway is conducted, a further occurrence of an elevation angle between said one satellite and said user terminal falling below a minimum threshold value, and a further occurrence of a signal strength or a signal quality of a link between said one satellite and said user terminal falling below a minimum threshold value.
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Specification