Synchronous transfer of streaming data in a distributed antenna system
First Claim
1. A method of generating a jitter reduced clock signal from a signal transmitted over a communication medium, the method comprising:
- receiving a modulated signal that includes a binary encoded data stream; and
generating a jitter reduced clock signal by filtering a recovered clock signal with circuitry having a bandwidth sufficient to remove jitter while allowing the jitter reduced clock signal to track drift in the modulated signal, wherein the recovered clock signal is generated from the modulated signal, the recovered clock signal tracking long-term drift in the modulated signal.
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Accused Products
Abstract
Method and apparatus for generating a jitter reduced clock signal from signal transmitted over a communication medium includes receiving, with high speed data interface circuitry, a modulated signal that includes a binary encoded data stream. A recovered clock signal is generated from the modulated signal and tracks the long-term drift in the modulated signal. A jitter reduced clock signal is generated by filtering the recovered clock signal with a filtering circuit having a bandwidth sufficient to remove jitter while allowing the jitter reduced clock signal to track the drift in the modulated signal.
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Citations
19 Claims
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1. A method of generating a jitter reduced clock signal from a signal transmitted over a communication medium, the method comprising:
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receiving a modulated signal that includes a binary encoded data stream; and generating a jitter reduced clock signal by filtering a recovered clock signal with circuitry having a bandwidth sufficient to remove jitter while allowing the jitter reduced clock signal to track drift in the modulated signal, wherein the recovered clock signal is generated from the modulated signal, the recovered clock signal tracking long-term drift in the modulated signal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A distributed antenna system, comprising:
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a master unit configured to clock a binary encoded data stream onto a data interface using a modulated signal; and at least one remote unit configured to receive the modulated signal and binary encoded data stream from the master unit, the at least one remote unit including; a circuit configured to filter a recovered clock signal, the circuit having a bandwidth sufficient to remove jitter while allowing a jitter reduced clock signal to track drift in the modulated signal in order to generate the jitter reduced clock signal, wherein the at least one remote unit is configured to generate the recovered clock signal from the modulated signal, the recovered clock signal tracking long-term drift in the modulated signal. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A remote unit for use in a distributed antenna system comprising:
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a data interface configured to couple the remote unit to a master unit of the distributed antenna system and to transceive a modulated signal with the master unit; and a circuit configured to filter a recovered clock signal, the circuit having a bandwidth sufficient to remove jitter while allowing a jitter reduced clock signal to track drift in the modulated signal for generating a jitter reduced clock signal, wherein the remote unit is configured to generate a recovered clock signal from the modulated signal, the recovered clock signal tracking long-term drift in the modulated signal. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification