Apparatus And Method For Detecting Jamming Of Communications
First Claim
1. A method of detecting the jamming of communications between a communication device and an emergency reporting system comprising:
- receiving location determination signals and determining a location of interest from the location determination signals;
establishing and synchronizing a communication service with a known, valid base station via a first communication channel;
monitoring a first rate of rise of a signal strength indicator associated with the first communication channel and monitoring a second rate of rise of a signal quality indicator associated with the first communication channel;
when at least one of the first rate rises at a rate greater than a first predetermined threshold rate and the second rate rises at a rate greater than a second predetermined threshold rate, transmitting a warning message to the known, valid base station before synchronization of the communication service is lost with the known, valid base station.
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Accused Products
Abstract
Location determination signals are received and a location of interest is determined from the location determination signals. A communication service with a known, valid base station via a first communication channel is established and synchronized. A first rate of rise of a signal strength indicator associated with the first communication channel is monitored and a second rate of rise of a signal quality indicator associated with the first communication channel is also monitored. When at least one of the first rate rises at a rate greater than a first predetermined threshold rate and the second rate rises at a rate greater than a second predetermined threshold rate, a warning message is transmitted to the known, valid base station before synchronization of the communication service is lost with the known, valid base station.
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Citations
17 Claims
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1. A method of detecting the jamming of communications between a communication device and an emergency reporting system comprising:
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receiving location determination signals and determining a location of interest from the location determination signals; establishing and synchronizing a communication service with a known, valid base station via a first communication channel; monitoring a first rate of rise of a signal strength indicator associated with the first communication channel and monitoring a second rate of rise of a signal quality indicator associated with the first communication channel; when at least one of the first rate rises at a rate greater than a first predetermined threshold rate and the second rate rises at a rate greater than a second predetermined threshold rate, transmitting a warning message to the known, valid base station before synchronization of the communication service is lost with the known, valid base station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device for detecting the jamming of communications between the device and an emergency reporting system comprising:
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an interface with an input and an output, the input configured to receive location determination signals; a controller coupled to the interface, the controller configured to establish and synchronize a communication service with a known, valid base station via a first communication channel established with the base station at the output of the interface, the controller further configured to monitor a first rate of rise of a signal strength indicator associated with the first communication channel and monitor a second rate of rise of a signal quality indicator associated with the first communication channel, the controller being further configured to, when at least one of the first rate rises at a rate greater than a first predetermined threshold rate and the second rate rises at a rate greater than a second predetermined threshold rate, transmit a warning message to the known, valid base station at the output of the interface before synchronization of the service is lost with the known, valid base station. - View Dependent Claims (11, 12, 13)
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14. A computer usable medium having a computer readable program code embodied therein, said computer readable program code adapted to be executed to implement a method of detecting the jamming of communications between a communication device and an emergency reporting system, the method comprising:
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determining a location of interest from received location determination signals; establishing and synchronizing a communication service with a known, valid base station via a first communication channel; monitoring a first rate of rise of a signal strength indicator associated with the first communication channel and monitoring a second rate of rise of a signal quality indicator associated with the first communication channel; when at least one of the first rate rises at a rate greater than a first predetermined threshold rate and the second rate rises at a rate greater than a second predetermined threshold rate, forming and transmitting a warning message to the known, valid base station before synchronization of the communication service is lost with the known, valid base station. - View Dependent Claims (15, 16, 17)
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Specification