Digital signal processing device of base station and method for processing data thereof
First Claim
1. A device of a base station, configured to process down-link signals in a wireless communication system employing orthogonal frequency division multiple access (OFDMA), the device comprising:
- a clock controller; and
a data processor,wherein the clock controller is configured to;
identify whether inphase/quadrature (IQ) data modulated from user data for a terminal is detected from an input signal entered into the data processor, anddetermine a frequency of clocks as a first frequency, if the IQ data modulated from the user data is detected from the input signal or the frequency of clocks as a second frequency, if the IQ data modulated from the user data is not detected from the input signal, based on the identified result, andwherein the data processor is configured to synchronize the input signal using the determined frequency of clocks.
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Abstract
A digital signal processing device of a base station configured to process down-link signals in a wireless communication system employing orthogonal frequency division multiple access (OFDMA) and a method of processing data in the device are provided. The device includes a clock controller configured to monitor whether a signal is allocated to an input and control a frequency of clocks to have a first or second characteristic based on the monitored result, and a data processor configured to process the input, and synchronize with the clock controlled by the clock controller.
15 Citations
20 Claims
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1. A device of a base station, configured to process down-link signals in a wireless communication system employing orthogonal frequency division multiple access (OFDMA), the device comprising:
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a clock controller; and a data processor, wherein the clock controller is configured to; identify whether inphase/quadrature (IQ) data modulated from user data for a terminal is detected from an input signal entered into the data processor, and determine a frequency of clocks as a first frequency, if the IQ data modulated from the user data is detected from the input signal or the frequency of clocks as a second frequency, if the IQ data modulated from the user data is not detected from the input signal, based on the identified result, and wherein the data processor is configured to synchronize the input signal using the determined frequency of clocks. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A digital signal processing device of a base station, configured to process down-link signals in a wireless communication system employing orthogonal frequency division multiple access (OFDMA), the device comprising:
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a buffer configured to buffer an input signal; a clock controller configured to; identify whether inphase/quadrature (IQ) data modulated from user data for a terminal is detected from the input signal, determine a first clock corresponding to a first frequency, if the IQ data modulated from the user data is detected from the input signal or a second clock corresponding to a second frequency, if the IQ data modulated from the user data is not detected from the input signal, based on the identified result, and generate a clock selection control signal based on the determined clock; a clock providing unit configured to provide the first clock and the second clock; a multiplexer configured to output the first clock or the second clock in response to the clock selection control signal; and a data processor configured to synchronize the input signal buffered in the buffer using the output clock from the multiplexer. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A method of processing data in a digital signal processing device of a base station, configured to process down-link signals in a wireless communication system employing orthogonal frequency division multiple access (OFDMA), the method comprising:
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modulating user data for a terminal to inphase/quadrature (IQ) data; identifying whether the IQ data modulated from the user data is detected from an input signal entered into a data processor configured to process the user data; providing, if the IQ data modulated from the user data is detected from the input signal, a first clock corresponding to a first frequency to the data processor; and providing, if the IQ data modulated from the user data is not detected from the input signal, a second clock corresponding to a second frequency to the data processor. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification