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 detection circuit configured for correlating a code in an uplink signal to the repeater with a set of possible codes for spread spectrum signals that are handled by the repeater in order to detect the existence of a spread spectrum signal;
the amplification circuit varying the gain based upon the correlation and the detection of a spread spectrum 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
42 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 detection circuit configured for correlating a code in an uplink signal to the repeater with a set of possible codes for spread spectrum signals that are handled by the repeater in order to detect the existence of a spread spectrum signal; the amplification circuit varying the gain based upon the correlation and the detection of a spread spectrum 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; correlating a code that is in a signal from at least one source with a set of possible codes for spread spectrum signals in order to detect the existence of a spread spectrum signal; varying the gain based upon the correlation and the detection of a spread spectrum signal. - View Dependent Claims (6, 7, 8, 9, 10, 34)
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11. 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 detection circuit configured for obtaining at least one reference frame of data in an uplink signal to the repeater, the detection circuit operable for correlating a segment of the at least one 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; the amplification circuit varying the gain based upon the correlation and the detection of a spread spectrum signal. - View Dependent Claims (12, 13, 14, 15, 16)
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17. 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; amplifying the repeated signals between the antennas with an amplification circuit having a variable gain; correlating a segment of at least one reference frame in an uplink signal to the repeater with a repeated segment of at least one subsequent frame of data in order to detect the existence of a spread spectrum signal; varying the gain based upon the correlation and the detection of a spread spectrum signal. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. 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 UMTS signals from a signal source in the wireless signal environment; a detection circuit configured for correlating a code in a UMTS signal received by the apparatus with a set of possible codes for spread spectrum UMTS signals in order to detect the existence of a spread spectrum signal. - View Dependent Claims (26, 27, 28)
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29. A method for detecting a spread spectrum signal in a wireless signal environment, the method comprising:
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receiving UMTS signals from a signal source in the wireless signal environment; correlating a code in a UMTS signal from a signal source with a set of possible codes for spread spectrum UMTS signals to detect the existence of a spread spectrum signal. - View Dependent Claims (30, 31, 32, 33)
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35. 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 UMTS signals from a signal source in the wireless signal environment; a detection circuit configured for obtaining at least one reference frame of data from a received UMTS signal; the detection circuit operable for correlating a segment of the at least one 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. - View Dependent Claims (36, 37, 38)
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39. A method for detecting a spread spectrum signal in a wireless signal environment, the method comprising:
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receiving UMTS signals from a signal source in the wireless signal environment; correlating a segment of at least one reference frame in the received signal with a repeated segment of at least one subsequent frame of data in order to detect the existence of a spread spectrum signal. - View Dependent Claims (40, 41, 42)
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Specification