Multi-hop booster

摘要

A two-way wireless repeater and booster system and method are disclosed. The system and method improve signal quality and strength for the middle hop of a three-hop repeater, between User and Network Units operating in the unlicensed bands (ISM and/or UNII), and supporting the cellular (or wireless) network communications channels. The system and method enables the support of a wider repeat spectrum or bandwidth for a given communications bandwidth in the unlicensed band.

主权项

1. A multi-hop booster system comprising:
a network unit communicating with a wireless base transceiver, the network unit comprising: an analog-to-digital converter to digitize radio frequency signals from the wireless base transceiver; a polyphase filter for filtering the digitized radio frequency signals from the analog-to-digital converter; a fast fourier transform processor for performing a Fast Fourier Transform (FFT) operation on the filtered, digitized radio frequency signals; and a digital-to-analog converter to convert the digitized radio frequency signals into analog output signals on one or more channels; and a user unit communicating with the network unit via a wireless link, the user unit comprising, for each of the one or more channels, an analog-to-digital converter to digitize the analog output signals from the network unit, and an equalizer to equalize any time dispersal on the selected channel, the user unit further comprising: a coherent combiner to combine outputs of the equalizer of each channel; a polyphase filter for filtering the combined outputs of the equalizers; a fast fourier transform processor for performing an FFT operation on the filtered, combined outputs of the equalizers; and an analog-to-digital converter to digitize the filtered, combined outputs of the equalizers to produce a boosted output signal for the user device.