PREVENTING MOBILE COMMUNICATIONS IN A QUIET ZONE USING ARTIFICIALLY IMPOSED SIGNAL TIME DELAY
First Claim
1. A system for controlling communications, comprising:
- a base station with a predefined signal parameter threshold, which when crossed, prevents communication with the base station; and
a delay control component coupled to the base station and coupled to a client device, wherein the delay control component selectively imposes a time delay on a signal between the client device and the base station to selectively control a signal parameter of the signal, thereby controlling whether the signal parameter crosses the signal parameter threshold.
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Accused Products
Abstract
Terminating or otherwise preventing communications in a predefined quiet zone by imposing a time delay. In one embodiment an existing call is terminated during a transition between two wireless access points by imposing a time delay on communications through one of the access points. The time delayed signal is interpreted as noise and causes a base station to drop the call if the noise causes the signal strength from the other access point to fall below a threshold. Within a quiet zone, a signal time delay prevents a client device from responding to a base station connection instruction, which causes the base station to believe that the client device is out of range of a quiet zone access point. The time delay may be imposed by an optical fiber spool between the quiet zone access point and the base station, or other delay mechanism. One embodiment is aboard a vessel.
86 Citations
25 Claims
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1. A system for controlling communications, comprising:
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a base station with a predefined signal parameter threshold, which when crossed, prevents communication with the base station; and a delay control component coupled to the base station and coupled to a client device, wherein the delay control component selectively imposes a time delay on a signal between the client device and the base station to selectively control a signal parameter of the signal, thereby controlling whether the signal parameter crosses the signal parameter threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A delay device for controlling communications, comprising:
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a base station interface for communication with a base station; an access point interface for communication with a client access point; and an optical fiber coupled between the base station interface and the access point interface, wherein the optical fiber has a length that causes a time delay in a signal propagating between the base station interface and the access point interface, wherein the time delay exceeds a predefined threshold period for enabling communication between a base station and a client device. - View Dependent Claims (11)
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12. A base station for controlling communication, comprising:
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a processor, an open zone communication interface coupled to the processor; a quiet zone communication interface coupled to the processor; and a memory coupled to the processor and storing processor readable instructions that cause the processor to perform a plurality of operations, including; receiving a first communication at a first signal strength through the open zone communication interface; receiving a second communication at a second signal strength through the quiet zone communication interface; determining that the first communication and the second communication indicate that they are both from the same client device; determining whether the first signal strength is below a predefined signal strength threshold, and whether the second signal strength exceeds the first signal strength; sending a connection request through the quiet zone communication interface to the client device, if the first signal strength is below the predefined signal strength threshold, and the second signal strength exceeds the first signal strength; and terminating communication with the client device through the quiet zone communication interface, if a connection acknowledgement is not received from the client device within a predefined delay limit. - View Dependent Claims (13, 14, 15, 16)
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17. A communication controller, comprising:
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a processor, a quiet zone communication interface coupled to the processor; a delay control component coupled to the quiet zone communication interface; and a memory coupled to the processor and storing processor readable instructions that cause the processor to perform a plurality of operations, including; receiving a communication connection request from a client device through the quiet zone communication interface; transmitting through the quiet zone communication interface, an acknowledgement request to the client device in response to the communication connection request; receiving through the quiet zone communication interface and through the delay control component, an acknowledgement from the client device; determining whether the acknowledgement was received after a predefined delay period; and selecting not to establish a communication session with the client device if the acknowledgement was received after the predefined delay period. - View Dependent Claims (18, 19, 20)
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21. A method of producing a storage device with stored data, comprising:
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receiving a first communication at a first signal strength from an open zone access point; receiving a second communication at a second signal strength from a quiet zone access point; determining that the first communication and the second communication indicate that they are both from the same client device; determining whether the first signal strength is below a predefined signal strength threshold, and whether the second signal strength exceeds the first signal strength; sending a connection request through the quiet zone access point to the client device, if the first signal strength is below the predefined signal strength threshold, and the second signal strength exceeds the first signal strength; terminating communication with the client device, if a connection acknowledgement is not received from the client device within a predefined delay limit; and storing on a storage device, an indication that the communication with the client device was terminated, if the communication was terminated. - View Dependent Claims (22)
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23. A method for controlling communication, comprising:
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receiving a first communication at a first signal strength from an open zone access point; receiving a second communication at a second signal strength from a quiet zone access point; determining that the first communication and the second communication indicate that they are both from the same client device; determining whether the first signal strength is below a predefined signal strength threshold, and whether the second signal strength exceeds the first signal strength; sending a connection request through the quiet zone access point to the client device, if the first signal strength is below the predefined signal strength threshold, and the second signal strength exceeds the first signal strength; and terminating communication with the client device, if a connection acknowledgement is not received from the client device within a predefined delay limit. - View Dependent Claims (24)
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25. A machine readable medium storing machine readable instructions that cause a processor to perform the operations of:
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receiving a communication connection request from a client device; transmitting an acknowledgement request to the client device in response to the communication connection request; receiving an acknowledgement from the client device through a delay control component; determining whether the acknowledgement was received after a predefined delay period; and selecting not to establish a communication session with the client device if the acknowledgement was received after the predefined delay period.
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Specification