System and method for detecting spread spectrum signals in a wireless environment
First Claim
1. A repeater for repeating signals between multiple sources, the repeater comprising:
- a donor antenna and a coverage antenna for transceiving signals that are repeated between the multiple sources;
an amplification circuit positioned between donor and coverage antennas for amplifying the repeated signals, the amplification circuit having a variable gain;
a set of possible codes for the repeater, the set representing the codes that would exist within spread spectrum signals that are handled by the repeater;
a detection circuit operable to correlate a code obtained from an uplink signal to the repeater with the set of possible codes for spread spectrum signals that are handled by the repeater and operable for using the correlation in order to detect the existence of a spread spectrum uplink signal;
the amplification circuit operably coupled with the detection circuit and operating to vary the gain of the amplification circuit based upon the correlation and the detection of a spread spectrum uplink signal.
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Accused Products
Abstract
An apparatus for detecting a spread spectrum signal in a wireless signal environment includes at least one antenna for receiving spread spectrum signals, such as UMTS signals, from a signal source in the wireless signal environment. In one embodiment, a detection circuit is configured for correlating a code in signal received by the apparatus with a set of possible codes for spread spectrum signals in order to detect the existence of a spread spectrum signal. In another embodiment, a detection circuit is configured for obtaining at least one reference frame of data from a received signal. The detection circuit is further operable for correlating a segment of the reference frame with a repeated segment of at least one subsequent frame of data in order to detect the existence of a spread spectrum signal. A repeater might incorporate such an apparatus wherein the variable gain of the repeater is adjusted based upon the correlation and the detection of a spread spectrum signal.
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Citations
20 Claims
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1. A repeater for repeating signals between multiple sources, the repeater comprising:
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a donor antenna and a coverage antenna for transceiving signals that are repeated between the multiple sources; an amplification circuit positioned between donor and coverage antennas for amplifying the repeated signals, the amplification circuit having a variable gain; a set of possible codes for the repeater, the set representing the codes that would exist within spread spectrum signals that are handled by the repeater; a detection circuit operable to correlate a code obtained from an uplink signal to the repeater with the set of possible codes for spread spectrum signals that are handled by the repeater and operable for using the correlation in order to detect the existence of a spread spectrum uplink signal; the amplification circuit operably coupled with the detection circuit and operating to vary the gain of the amplification circuit based upon the correlation and the detection of a spread spectrum uplink signal. - View Dependent Claims (2, 3, 4)
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5. A method for repeating signals between multiple sources, the method comprising:
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transceiving signals repeated between the multiple sources with a donor antenna and a coverage antenna; amplifying the repeated signals between the antennas with an amplification circuit having a variable gain; providing a set of possible codes, the set representing the codes that would exist within spread spectrum signals that are to be repeated between the multiple sources; correlating a code that is obtained from an uplink signal from at least one source with the set of possible codes for spread spectrum signals that are to be repeated and using the correlation in order to detect the existence of a spread spectrum uplink signal; varying the gain of the amplification circuit based upon the correlation and the detection of a spread spectrum uplink signal. - View Dependent Claims (6, 7, 8, 9, 10)
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11. An apparatus for detecting a spread spectrum signal in a wireless signal environment, the apparatus comprising:
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at least one antenna for receiving uplink UMTS signals from a signal source in the wireless signal environment; a set of possible codes for the apparatus, the set representing the codes that would exist within UMTS signals that are handled by the apparatus in the wireless signal environment; a detection circuit operable to correlate a code obtained from an uplink UMTS signal received by the apparatus with the set of possible codes for spread spectrum UMTS signals that are handled by the apparatus and operable for using the correlation in order to detect the existence of a spread spectrum uplink signal. - View Dependent Claims (12, 13, 14)
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15. A method for detecting a spread spectrum signal in a wireless signal environment, the method comprising:
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receiving uplink UMTS signals from a signal source in the wireless signal environment; providing a set of possible codes, the set representing the codes that would exist within UMTS signals that are handled in the wireless signal environment; correlating a code obtained from an uplink UMTS signal from a signal source with the set of possible codes for spread spectrum UMTS signals and using the correlation in order to detect the existence of a spread spectrum uplink signal. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification