Repeater for use in a wireless communication system
First Claim
1. A repeater system for a wireless communication system comprising:
- a first antenna operable to transmit an uplink radio frequency (RF) signal to, and receive a downlink RF signal from, a base station antenna;
a first duplexer connected to said first antenna and operable to receive the downlink RF signal from said first antenna and direct the downlink RF signal to a first duplexer output, and further operable to receive an amplified uplink signal at a first duplexer input and provide the amplified uplink signal to said first antenna for transmission to the base station antenna; and
a first digital channelizer operable to receive a wideband downlink signal including a plurality of downlink signals each having a different frequency, and digitally isolate a single downlink signal from among the plurality of downlink signals and provide the isolated downlink signal at a first digital channelizer output, wherein the wideband downlink signal comprises a narrower band of frequencies than the downlink RF signal.
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Accused Products
Abstract
A repeater system for transmitting and receiving RF signals to and from an area obstructed by a mountain, a building, etc. One antenna is linked to the base station antenna of, for example, a cell in a cellular network, and another antenna is directed to the obstructed area. Signals are received by one antenna from the base station antenna and digitally separated into a number of different frequency channels. The separated channels are then transmitted by the other antenna into the obstructed area to mobile users. Also, signals from the mobile users are received by one of the antennas and similarly digitally separated into different frequency channels and transmitted to the base station antenna for delivery to a communication network.
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Citations
6 Claims
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1. A repeater system for a wireless communication system comprising:
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a first antenna operable to transmit an uplink radio frequency (RF) signal to, and receive a downlink RF signal from, a base station antenna;
a first duplexer connected to said first antenna and operable to receive the downlink RF signal from said first antenna and direct the downlink RF signal to a first duplexer output, and further operable to receive an amplified uplink signal at a first duplexer input and provide the amplified uplink signal to said first antenna for transmission to the base station antenna; and
a first digital channelizer operable to receive a wideband downlink signal including a plurality of downlink signals each having a different frequency, and digitally isolate a single downlink signal from among the plurality of downlink signals and provide the isolated downlink signal at a first digital channelizer output, wherein the wideband downlink signal comprises a narrower band of frequencies than the downlink RF signal. - View Dependent Claims (2, 3, 4)
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5. A method for transmitting and receiving radio frequency (RF) signals comprising:
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receiving a downlink RF signal from a base station antenna;
directing the downlink RF signal to a first digital channelizer;
digitally filtering a plurality of sub bands of frequencies from the downlink RF and separating each sub band into a respective number of channels;
transmitting each of the channels into an area in which the base station, due to an obstruction, cannot transmit signals directly; and
receiving at least one of the channels by a mobile communication unit. - View Dependent Claims (6)
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Specification