Channelization for signal boosters
First Claim
Patent Images
1. A channelization device having a controller for increasing signal booster gain while maintaining network protections, the channelized device comprising:
- a first diplexer configured to be coupled to a first interface port;
a second diplexer configured to be coupled to a second interface port;
a channelized bandpass filter comprising a downlink filter configured to filter one or more channels in a selected band of a downlink signal and an uplink filter configured to filter one or more channels in a selected band of an uplink signal;
a third diplexer coupled to the channelized bandpass filter and located between the first diplexer and the channelized bandpass filter;
a fourth diplexer coupled to the channelized bandpass filter and located between the second diplexer and the channelized bandpass filter on an opposite side of the channelized bandpass filter relative to the third diplexer; and
a pass-through path coupled between the third diplexer and the fourth diplexer to allow signals to pass between the first interface port and the second interface port when a base station coupling loss (BSCL) value for each of the one or more channels is greater than a threshold value.
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Abstract
A technology is described for a channelization of a signal booster. A downlink (DL) and uplink (UL) signal can be channelized. A base station coupling loss (BSCL) can be estimated for selected channels in the channelized downlink signal. One or more channels in the UL and/or DL signal can be filtered to increase the BSCL, in order to increase one or more of an uplink signal gain and a noise power for the signal booster while maintaining network protections.
54 Citations
33 Claims
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1. A channelization device having a controller for increasing signal booster gain while maintaining network protections, the channelized device comprising:
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a first diplexer configured to be coupled to a first interface port; a second diplexer configured to be coupled to a second interface port; a channelized bandpass filter comprising a downlink filter configured to filter one or more channels in a selected band of a downlink signal and an uplink filter configured to filter one or more channels in a selected band of an uplink signal; a third diplexer coupled to the channelized bandpass filter and located between the first diplexer and the channelized bandpass filter; a fourth diplexer coupled to the channelized bandpass filter and located between the second diplexer and the channelized bandpass filter on an opposite side of the channelized bandpass filter relative to the third diplexer; and a pass-through path coupled between the third diplexer and the fourth diplexer to allow signals to pass between the first interface port and the second interface port when a base station coupling loss (BSCL) value for each of the one or more channels is greater than a threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 30, 31, 32, 33)
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9. A channelization device for assessing network sensitivity of a signal booster that includes the channelization device, the channelized device comprising:
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a first diplexer configured to be coupled to a first interface port; a second diplexer configured to be coupled to a second interface port; a pass-through path coupled between the first and second diplexer; a downlink signal path including at least one downlink channelized filter configured to block at least one channel to enable an uplink gain of the signal booster to be increased; and an uplink signal path including at least one uplink channelized filter, wherein the downlink channelized filter and the uplink channelized filter are communicatively coupled to the first diplexer and the second diplexer. - View Dependent Claims (10)
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11. A channelization device for increasing signal booster gain in a signal booster while maintaining network protections, the channelized device comprising:
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a controller; a first diplexer configured to be communicatively coupled to the controller and a first interface port; a second diplexer configured to be communicatively coupled to the controller and a second interface port; a channelized analog notch filter communicatively coupled to the first diplexer, the second diplexer and the controller, the channelized analog notch filter configured to; filter one or more channels in a selected band of a downlink signal; and pass the one or more channels in the selected band to the signal booster to enable the controller in the signal booster to; measure a base station coupling loss (BSCL) value for the one or more channels; and set an uplink gain or a noise power of an uplink signal based on the BSCL value of the one or more channels. - View Dependent Claims (12, 13, 14, 15)
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16. An active channelization device having a controller for assessing network sensitivity of a signal booster, the channelized device comprising:
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a first interface port coupled to a first diplexer to receive a downlink signal from the signal booster; a second interface port coupled to a second diplexer; and a channelized filter configured to filter one or more channels in a selected band of the downlink signal that is received at the first interface port, wherein the controller is configured to; receive a gain reduction level of an uplink signal from the signal booster that is caused by a base station coupling loss (BSCL) value of the downlink signal; measure a channelized base station coupling loss (BSCL) value for the one or more channels of the downlink signal; and an amplifier configured to amplify the uplink signal based on the channelized BSCL value and the received gain reduction level. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. A method for increasing signal booster gain of a signal booster while maintaining network protections, comprising:
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receiving a wideband downlink signal with a base station coupling loss BSCL value; switching in two or more channelized filters, wherein each channelized filter is configured to filter a selected channel in the wideband downlink signal to form a channelized downlink signal; determining a BSCL value for each of the channelized downlink signals; selecting the channelized filter associated with a selected BSCL value of each of the channelized downlink signals; and adjusting, using a controller in the signal booster, a gain or a noise power of the uplink signal at the signal booster based on the selected channelized filter while maintaining the network protections. - View Dependent Claims (25, 26, 27)
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28. A method for increasing signal booster gain while maintaining network protections, comprising:
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receiving a wideband downlink signal with a base station coupling loss (BSCL) value; digitizing the wideband downlink signal to form a plurality of channelized downlink signals; determining a BSCL value for each of the plurality of channelized downlink signals; and using a digital filter to adjust a gain of one or more of the channelized downlink signals to optimize a gain for each channel based on network protection. - View Dependent Claims (29)
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Specification