Receiver apparatus and method for tracking and rejecting transmit signal in wireless communication system
First Claim
1. A receiver apparatus for tracking and rejecting a Transmit (Tx) signal in a wireless communication system, the apparatus comprising:
- a controller adapted to receive channel frequency information of the Tx signal and to control an operation for tracking and rejecting a frequency of the Tx signal;
a phase locked loop adapted to generate an oscillation frequency by generating a control voltage according to the channel frequency information of the Tx signal under the control of the controller and to filter a signal corresponding to the oscillation frequency among signals input to a low noise amplifier; and
the low noise amplifier adapted to amplify power while minimizing noise of the signal filtered by the phase locked loop.
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Abstract
A receiver apparatus for tracking and rejecting a Transmit (Tx) signal in a wireless communication system and an operation method thereof are provided. The receiver apparatus includes a controller for receiving channel frequency information of the Tx signal and for controlling an operation for tracking and rejecting a frequency of the Tx signal; a phase locked loop for generating an oscillation frequency by generating a control voltage according to the channel frequency information of the Tx signal under the control of the controller and for filtering a signal corresponding to the oscillation frequency among signals input to a low noise amplifier; and the low noise amplifier for amplifying power while minimizing noise of a signal filtered by the phase locked loop.
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Citations
13 Claims
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1. A receiver apparatus for tracking and rejecting a Transmit (Tx) signal in a wireless communication system, the apparatus comprising:
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a controller adapted to receive channel frequency information of the Tx signal and to control an operation for tracking and rejecting a frequency of the Tx signal; a phase locked loop adapted to generate an oscillation frequency by generating a control voltage according to the channel frequency information of the Tx signal under the control of the controller and to filter a signal corresponding to the oscillation frequency among signals input to a low noise amplifier; and the low noise amplifier adapted to amplify power while minimizing noise of the signal filtered by the phase locked loop. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of operating a receiver for tracking and rejecting a Transmit (Tx) signal in a wireless communication system, the method comprising the steps of:
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generating a control voltage using a phase locked loop according to channel frequency information of the Tx signal and a reference frequency; oscillating an oscillation frequency according to the control voltage using a Tx signal tracker/rejector; determining whether the oscillation frequency is equal to the channel frequency of the Tx signal by comparing the two frequencies; and if the two frequencies are equal to each other, filtering a signal corresponding to the oscillation frequency among signals input to the Tx signal tracker/rejector. - View Dependent Claims (8, 9, 10, 11)
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12. An apparatus for tracking and rejecting a Transmit (Tx) signal in a wireless communication system, the apparatus comprising:
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a receiver adapted to receive channel frequency information of the Tx signal; and a phase locked loop adapted to generate an oscillation frequency corresponding to the channel frequency information of the Tx signal and to filter a signal corresponding to the oscillation frequency among signals input to a low noise amplifier.
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13. A method of operating a receiver for tracking and rejecting a Transmit (Tx) signal in a wireless communication system, the method comprising:
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receiving channel frequency information of the Tx signal; generating an oscillation frequency corresponding to the channel frequency information of the Tx signal; and filtering a signal corresponding to the oscillation frequency among signals input to a low noise amplifier.
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Specification