WIRELESS REPEATER WITH SMART UPLINK
First Claim
1. A communication system for enhancing wireless coverage for a host base station, comprising:
- a digital repeater receiving and providing time division multiplexed (TDM) communication signals between a host base station and a communication network for a plurality of RF channels;
a digital filter for each of the plurality of RF channels, the filter frequencies being aligned to the corresponding RF channel tuning of the host base station;
a delay buffer for each RF channel configured to provide a time delayed TDM signal for a power measurement on the RF channel;
a power measurement unit; and
a gain setting unit for each RF channel receiving the time delayed communication signal and power measurement for adjusting a gain setting on each RF channel.
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Accused Products
Abstract
An over the air repeater for enhancing wireless communication is provided. The repeater employs a system and method by which strong signals can be prevented from exceeding the repeater'"'"'s uplink output limits while still providing full operational gain to any concurrently amplified weak signals, while adapting to time slot variations and optionally to frequency hopping variations. Power measurements are performed on each channel with resultant gain changes being performed on delayed versions of those same signals. Digital delay buffers are used to provide adequate processing time to make an accurate determination of the uplink signal levels of each RF carrier. The repeater alternatively monitors the downlink path from the donor base station to determine the frequencies to be processed on the uplink communication.
60 Citations
20 Claims
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1. A communication system for enhancing wireless coverage for a host base station, comprising:
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a digital repeater receiving and providing time division multiplexed (TDM) communication signals between a host base station and a communication network for a plurality of RF channels; a digital filter for each of the plurality of RF channels, the filter frequencies being aligned to the corresponding RF channel tuning of the host base station; a delay buffer for each RF channel configured to provide a time delayed TDM signal for a power measurement on the RF channel; a power measurement unit; and a gain setting unit for each RF channel receiving the time delayed communication signal and power measurement for adjusting a gain setting on each RF channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for adjusting an over the air repeater for enhancing coverage in a wireless communication system, the method comprising:
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providing and receiving a plurality of digital time division multiplexed (TDM) signals for each of a plurality of RF channels; filtering and splitting the plurality of digital TDMA signals for each of the plurality of RF channels; delaying a digital filtered TDM signal to provide a power measurement of each of the plurality of RF channels; measuring the power level of each of the filtered digital TDM signals; and adjusting the filtered digital TDM signal gain setting based on the individual power measurement on each of the plurality of RF channels. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A communication system for enhancing wireless coverage for a host base station, comprising:
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a digital repeater receiving and providing communication signals between a host base station and a communication network for a plurality of RF channels; a Fast Fourier Transform (FFT) circuit for detecting an uplink communication signal and measuring frequency during the leading edge burst of the uplink communication signal to determine a corresponding RF channel; a first delay buffer configured to provide a time delay for the FFT circuit to detect the uplink communication signal; and a digital filter for each of the plurality of RF channels, the filter being synchronized to the corresponding RF channel timing of the host base station by the FFT circuit. - View Dependent Claims (19, 20)
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Specification