Cellular/satellite communications systems with improved frequency re-use
First Claim
1. A method for communicating a plurality of first signals from a first station to a corresponding plurality of second stations and a plurality of second signals from said second stations to said first station involving the steps of:
- processing said first signals into a form representative of modulated radio signals;
combining said representations to form a number of transmit signals using a set of combining parameters;
transmitting said transmit signals using a transmitter and antenna for each of said signals;
receiving said transmit signals at said second stations to produce received signals;
measuring at said second stations an amount received of at least one unwanted signal relative to the amount of wanted signal received to produce measurement results;
transmitting said measurement results from said second stations to said first station;
receiving said measurement results at said first station and using said results to modify said combining parameters such that unwanted signals received at said second stations are reduced and wanted signals enhanced;
wherein said step of measuring further includes the step of correlating said received signals with known signals to produce said amount of at least one unwanted signal, and said amount of wanted signal.
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Accused Products
Abstract
A radio communication system and method for minimizing co-channel interference comprises a technique for communicating between first stations and second stations. The technique involves: i) processing, at a first station, first signals into a form representative of modulated radio signals; ii) combining the representations to form a number of transmit signals using a set of combining parameters; iii) transmitting the transmit signals using a transmitter and antenna for each of the signals; iv) receiving the transmit signals at the second stations to produce received signals; v) measuring at the second stations an amount received of at least one unwanted signal relative to the amount of wanted signal received to produce measurement results; vi) transmitting the measurement results from the second stations to the first station; and vii) receiving the measurement results at the first station and using the results to modify the combining parameters such that unwanted signals received at the second stations are reduced and wanted signals enhanced. The measuring step includes the step of correlating received signals with known signals to produce the amount of at least one unwanted signal, and the amount of wanted signal.
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Citations
22 Claims
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1. A method for communicating a plurality of first signals from a first station to a corresponding plurality of second stations and a plurality of second signals from said second stations to said first station involving the steps of:
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processing said first signals into a form representative of modulated radio signals; combining said representations to form a number of transmit signals using a set of combining parameters; transmitting said transmit signals using a transmitter and antenna for each of said signals; receiving said transmit signals at said second stations to produce received signals; measuring at said second stations an amount received of at least one unwanted signal relative to the amount of wanted signal received to produce measurement results; transmitting said measurement results from said second stations to said first station; receiving said measurement results at said first station and using said results to modify said combining parameters such that unwanted signals received at said second stations are reduced and wanted signals enhanced; wherein said step of measuring further includes the step of correlating said received signals with known signals to produce said amount of at least one unwanted signal, and said amount of wanted signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for communicating a plurality of first signals from a first station to a corresponding plurality of second stations and a plurality of second signals from said second stations to said first station involving the steps of:
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processing said first signals into a form representative of modulated radio signals; combining said representations to form a number of transmit signals using a set of combining parameters; amplifying said transmit signals to desired transmit power levels and transmitting said transmit signals using a corresponding transmitter and antenna for each transmit signal; measuring at said second stations an amount received of at least one unwanted signal relative to the amount of wanted signal received to produce measurement results; transmitting said measurement results from said second stations to said first station; receiving said measurement results at said first station and using said results to modify said combining parameters such that unwanted signals received at said second stations are reduced and the sum of said transmit power levels needed to transmit said first signals is reduced. - View Dependent Claims (12, 13, 14, 15)
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16. A system for wireless communication between at least one first station and at least one second station, comprising:
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a first station including a processor for processing first signals into a form representative of modulated radio signals; a first station combiner for combining said representations to form a number of transmit signals using a set of combining parameters; a first station transmitter for transmitting said transmit signals; a second station receiver for receiving said transmitted signals to produce received signals; second station logic for determining an amount received by said receiver of at least one unwanted signal relative to the amount of wanted signal received by said receiver to produce measurement results; a second station transmitter for transmitting said measurement results from said second station to said first station; a first station receiver for receiving said measurement results from said second station transmitter; wherein said first station uses said results to modify said combining parameters such that unwanted signals received at said second stations are reduced and wanted signals enhanced; wherein said logic for determining further includes logic for correlating said received signals with known signals to produce said amount of at least one unwanted signal, and said amount of wanted signal. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification