Apparatus and method for detecting communication interference
First Claim
Patent Images
1. A method of detecting an attempt at interfering with communications between a vehicle and an emergency reporting system comprising:
- receiving location determination signals at a vehicle and determining a location of the vehicle from the location determination signals;
establishing a first communication with a known, valid cellular base station via a first cellular communication channel;
monitoring a value of a signal strength indicator associated with the first cellular communication channel;
when the value of the signal strength indicator falls below a predetermined threshold level, transmitting a first warning message via a Radio Data System (RDS) frequency, the first warning message being configured to be received by car radios in the vicinity of the vehicle and configured to be capable of being displayed on displays of said car radios in said vicinity.
1 Assignment
0 Petitions
Accused Products
Abstract
Location determination signals are received and a location of interest is determined from the location determination signals. A communication service is established and synchronized with a known, valid base station via a first communication channel. A value of a signal strength indicator associated with the first communication channel is monitored. When the value of the signal strength indicator falls below a threshold level, 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.
26 Citations
18 Claims
-
1. A method of detecting an attempt at interfering with communications between a vehicle and an emergency reporting system comprising:
-
receiving location determination signals at a vehicle and determining a location of the vehicle from the location determination signals; establishing a first communication with a known, valid cellular base station via a first cellular communication channel; monitoring a value of a signal strength indicator associated with the first cellular communication channel; when the value of the signal strength indicator falls below a predetermined threshold level, transmitting a first warning message via a Radio Data System (RDS) frequency, the first warning message being configured to be received by car radios in the vicinity of the vehicle and configured to be capable of being displayed on displays of said car radios in said vicinity. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A non-transitory 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 an attempt at interfering with communications between a vehicle and an emergency reporting system, the method comprising: -
receiving location determination signals at the vehicle and determining a location of the vehicle from the location determination signals; establishing a cellular communication with a known, valid base station via a first cellular communication channel; monitoring a value of a signal strength indicator associated with the first cellular communication channel; determining that the cellular communication with the vehicle is being jammed when the value of the signal strength indicator falls below a threshold level, and thereafter, transmitting a first warning message from the vehicle via a Radio Data System (RDS) frequency, the first warning message being configured to be received by car radios in the vicinity of the vehicle and additionally configured to be capable of being displayed on displays of said car radios in said vicinity. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A device for detecting attempted interference with communications between a vehicle and an emergency reporting system comprising:
-
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 a cellular communication with a known, valid base station via a cellular communication channel, the controller further configured to monitor a value of a signal strength indicator associated with the cellular communication channel, controller further configured to, cause the transmission of a first warning message on a Radio Data System (RDS) frequency, the first warning message being configured to be received by car radios in the vicinity of the vehicle and additionally configured to be capable of being displayed on displays of said car radios in said vicinity, the first warning message being transmitted when the value of the signal strength indicator falls below a threshold level. - View Dependent Claims (16, 17, 18)
-
Specification