Booster
First Claim
1. An apparatus for receiving and transmitting one or more selected electro-magnetic signals comprising:
- means for sensing one or more selected signals;
means for forming a list identifying one or more of said selected signals as candidates for retransmission pursuant to a predetermined list forming criterion with said forming means including means for determining if each of said sensed selected signals has a characteristic that exceeds a predetermined first threshold and for associating a threshold exceeding identifier with at least some of said signals in said list and with said forming means including means for determining if said corresponding characteristic values of at least some of said sensed selected signals exceed a predetermined second threshold;
means for selecting one or more members from said list pursuant to a predetermined first and second threshold retransmission criterion;
means for retransmitting said selected memberswherein said selecting means includes means for comparing power levels of members from said list to one another and for selecting a predetermined number of members of said list having the highest power levels.
6 Assignments
0 Petitions
Accused Products
Abstract
An apparatus and method for selecting a number of cellular radio channels to be boosted in a given geographical area provides either F1-F1 or F1-F2 operation. The signals are be boosted at the same frequency with input to output isolation being achieved by the use of directive transmit and receive antennas physically positioned to achieve sufficient isolation. Each signal is individually filtered, amplified, and recombined for transmission. Any number of signals may be accommodated depending upon the number of retransmission channels available. Apparatus is also provided to retransmit a signal at a different frequency from that at which it is received.
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Citations
36 Claims
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1. An apparatus for receiving and transmitting one or more selected electro-magnetic signals comprising:
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means for sensing one or more selected signals; means for forming a list identifying one or more of said selected signals as candidates for retransmission pursuant to a predetermined list forming criterion with said forming means including means for determining if each of said sensed selected signals has a characteristic that exceeds a predetermined first threshold and for associating a threshold exceeding identifier with at least some of said signals in said list and with said forming means including means for determining if said corresponding characteristic values of at least some of said sensed selected signals exceed a predetermined second threshold; means for selecting one or more members from said list pursuant to a predetermined first and second threshold retransmission criterion; means for retransmitting said selected members wherein said selecting means includes means for comparing power levels of members from said list to one another and for selecting a predetermined number of members of said list having the highest power levels. - View Dependent Claims (2, 3, 4)
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5. An apparatus for receiving and retransmitting one or more selected electro-magnetic signals comprising:
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means for sensing one or more selected signals; means for forming a list identifying one or more of said selected signals as candidates for retransmission pursuant to a predetermined list forming criterion; means for selecting one or more members from said list pursuant to a predetermined retransmission criterion; wherein said selecting means includes means for comparing power levels of members from said list to one another and for selecting a predetermined number of members of said list having the highest power levels; and including means for comparing said selected members of said list to a plurality of signals currently being retransmitted and including means for retransmitting only those signals corresponding to said selected members of said list.
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6. An apparatus for receiving and retransmitting one or more selected electro-magnetic signals comprising:
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means for sensing one or more selected signals; means for forming a list identifying one or more of said selected signals as candidates for retransmission pursuant to a predetermined list forming criterion with said forming means including means for determining is each of said sensed selected signals has a characteristic that exceeds a predetermined first threshold and for associating a threshold exceeding identifier with at least some of said signals in said list and with said forming means including means for determining if said characteristic values of at least some of said sensed corresponding selected signals exceed a predetermined threshold; means for selecting one or more members from said list pursuant to a predetermined first and second threshold retransmission criterion; and means for retransmitting said selected members including means for sensing selected signals at a first frequency and retransmitting said selected signals at a second frequency. - View Dependent Claims (7, 8)
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9. A method of receiving a plurality of electro-magnetic signals and for retransmitting selected ones thereof comprising:
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sensing a plurality of electro-magnetic signals; determining, based on a preset criterion, which of the sensed signals should be compared with a threshold and comparing a first indicium of each of those signals to a predetermined threshold; recording a second indicium for each sensed signal that exceeds the threshold; selecting one or more signals to be retransmitted among the recorded second indicia; and retransmitting only the selected one or more signals.
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10. A method of receiving a plurality of electro-magnetic signals and for retransmitting selected ones thereof comprising:
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sensing a plurality of electro-magnetic signals; choosing based on a preset criterion which of the sensed signals should be compared to a predetermined threshold; comparing a first indicia of each of the chosen sensed signals to the predetermined threshold; recording a second indicium for each compared, sensed signal that exceeds the threshold; selecting one or more sensed signals from among the recorded second indicia; retransmitting only the selected one or more sensed signals with the selecting step including; determining if the number of recorded second indicia for a given sensed signal, out of a preselected number of comparisons, exceeds a preselected value; and recording an identifier of the given signal in response to that determination. - View Dependent Claims (11, 12)
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13. An apparatus for receiving and retransmitting one or more selected electro-magnetic signals comprising:
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means for sensing a plurality of received signals with each signal received at respective frequency; means for sequentially measuring at least some of said sensed signals and for generating an indicium corresponding to each of the measured signals; means for comparing each of said indicium to a preset threshold; means for selecting one or more of said measured signals each having an indicium with a value that exceeds said threshold; and means for retransmitting at a frequency different from said respective received frequency at least some of said measured and selected signals corresponding to at least some of said generated indicia.
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14. A booster usable in a radio system between a fixed transmitter-receiver and one or more adjacent mobile transceivers, the booster comprising:
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means for receiving signals simultaneously from two or more mobile transceivers; means for measuring a predetermined characteristic of each said received mobile signal; first means for comparing a representation of said characteristic of at least some of said received signals to a first predetermined threshold and for generating a comparison result indicating indicium; second means for comparing only those characteristics which exceed said first predetermined threshold to a second predetermined threshold; means for selecting one or more of said received mobile signals in response to said comparison of said measured characteristics to said two thresholds; a plurality of parallel coupled, adjustable filter means for simultaneously amplifying at least portions of each said selected mobile signals; and means for transmitting said amplified signals to the transmitter-receiver. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. A method of retransmitting to a receiver a plurality of electro-magnetic signals from a source with each signal received at a respective frequency, comprising:
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sensing the plurality of signals; measuring a selected characteristic for each member of the plurality; ordering the members of the plurality as a result of the respective measured values of the characteristic; selecting one or more members of the ordered plurality for retransmission in response to the results of the measuring steps; and retransmitting at least some of the selected signals at a different frequency from the respective received frequency. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. An apparatus for receiving and retransmitting radio frequency signals comprising:
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means for sensing one or more radio frequency signals; means for repetitively measuring a selected parameter of one or more of the sensed signals; means for forming a group of measured parameter values corresponding to one or more of the sensed signals; means for comparing said measured parameter for one or more of said sensed signals to a first predetermined threshold and for accepting those signals with a measured parameter greater that said first threshold; means for comparing said measured parameter for one or more of the accepted sensed signals to a second predetermined threshold higher than said first threshold; first means for determining if any of these signals which exceed said second threshold are already being retransmitted including means for continuing to retransmit each said signal; second means for determining if any of said sensed, accepted signals which did not exceed said second threshold had been accepted in a predetermined number of prior groups of measured parameter values including means for identifying each such signal as a candidate for retransmission; and means for determining which of said candidate should be retransmitted.
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36. An apparatus for receiving and essentially immediately retransmitting one or more selected electro-magnetic signals comprising:
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means for sensing one or more selected signals; first means for determining if each of said sensed selected signals has a characteristic that exceeds a predetermined first threshold and for associating a threshold exceeding identifier with at least some of said signals; second means for determining if said corresponding characteristic values of at least some of said sensed selected signals exceed a predetermined second threshold, greater than said first threshold; means for selecting one or more signals, each with a threshold exceeding identifier, for retransmission pursuant to a predetermined first and second threshold retransmission criterion; and means for retransmitting said selected members.
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Specification