System for GSM interference cancelling
First Claim
1. A monitoring unit for determining the location of a device in a wireless communication network comprising:
- a unit configured for being positioned proximate to at least one antenna transmitting signals in a wireless communication network, the unit operable for receiving, as a first input, signals transmitted by an antenna and signals from a device in the network and receiving, as a second input, signals for being transmitted by an antenna;
the unit including at least one cancellation stage for modifying the second input and combining the modified second input with the first input to reduce the effect of transmitted antenna signals on the unit first input.
11 Assignments
0 Petitions
Accused Products
Abstract
A system for determining the location of a device in a wireless communication network includes at least one antenna for transmitting signals in a wireless communication network. A monitoring unit, located proximate to the at least one antenna, is operable for receiving, as a first input, signals transmitted by the antenna and signals from a device in the network and for receiving, as a second input, signals to be transmitted by the antenna. The monitoring unit includes at least one cancellation stage for modifying the second input and combining the modified second input with the first input to reduce the effect of the transmitted antenna signals on the monitoring unit first input.
11 Citations
51 Claims
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1. A monitoring unit for determining the location of a device in a wireless communication network comprising:
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a unit configured for being positioned proximate to at least one antenna transmitting signals in a wireless communication network, the unit operable for receiving, as a first input, signals transmitted by an antenna and signals from a device in the network and receiving, as a second input, signals for being transmitted by an antenna;
the unit including at least one cancellation stage for modifying the second input and combining the modified second input with the first input to reduce the effect of transmitted antenna signals on the unit first input. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system for determining the location of a device in a wireless communication network comprising:
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at least one antenna for transmitting signals in a wireless communication network;
a monitoring unit, located with the antenna, the monitoring unit operable for receiving, as a first input, signals transmitted by the antenna and signals from a device in the network and receiving as a second input signals to be transmitted by the antenna;
the monitoring unit including at least one cancellation stage for modifying the second input and combining the modified second input with the first input to reduce the effect of the transmitted antenna signals on the monitoring unit first input. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A system for determining the location of a device in a wireless communication network comprising:
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a base station with multiple sector antennas defining individual sectors of a wireless communication network;
a monitoring unit, located with the base station, the monitoring unit operable for receiving, as a first input, signals transmitted by the base station sector antennas and signals from a device in the network and receiving, as additional sector inputs, the signals to be transmitted by respective sector antennas;
the monitoring unit including at least one cancellation stage for each of the sectors, the cancellation stages operable for modifying the respective sector inputs for the sectors and combining the modified sector inputs with the first input to reduce the effect of the sector antenna signals on the monitoring unit first input. - View Dependent Claims (32, 33)
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34. A method for determining the location of a device in a wireless communication network wherein at least one antenna is transmitting signals in the network, the method comprising:
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monitoring the network with a monitoring unit located proximate to the at least one antenna and receiving, as a first input, signals transmitted by the at least one antenna and signals from a device in the network;
receiving, as a second input, signals to be transmitted by the antenna;
modifying the second input;
combining the modified second input with the first input to reduce the effect of the transmitted antenna signals on the monitoring unit first input. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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50. A method for determining the location of a device in a wireless communication network including at least one base station with multiple sector antennas defining individual sectors of the network, the method comprising:
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monitoring the network with a monitoring unit located proximate to the base station and receiving, as a first input, signals transmitted by the sector antennas and signals from a device in the network;
receiving, as additional sector inputs, the signals to be transmitted by respective sector antennas;
modifying the respective sector inputs for the sectors;
combining the modified sector inputs with the first input to reduce the effect of the sector antenna signals on the monitoring unit first input. - View Dependent Claims (51)
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Specification