Method to calibrate RF paths of an FHOP adaptive base station
First Claim
1. A method comprising:
- directing RF energy to a first mobile unit to obtain a first signal level, by an entire adaptive base transceiver station having an adaptive antenna array including an RF traffic transceiver apparatus chain;
generating, by said entire adaptive base transceiver station, a null in a direction of said first mobile unit to obtain a second signal level;
obtaining a peak gain derived from said first signal level and said second signal level,wherein said directing is in response to a periodic interruption of a frequency hopping process while a call is in progress,wherein said periodically interrupting comprises routing said call to an RF beacon transceiver apparatus,calibrating an antenna transmit path for said RF traffic transceiver apparatus chain at a selected frequency to determine a set of weighting parameters for said antenna transmit path at said selected frequency; and
returning said call to said frequency hopping process.
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Accused Products
Abstract
A method for calibration of RF paths of a frequency hopping adaptive base transceiver station is provided. The method of calibration calibrates a wireless cellular telecommunication system with a frequency hopping adaptive base transceiver station including an adaptive antenna array with two or more RF traffic transceiver apparatus chains. The wireless cellular telecommunication system communicates with mobile units on a frequencies defined by a hop list. The method of calibration includes the step of periodically interrupting a frequency hopping process of the frequency hopping adaptive base transceiver station while calls are in progress. The method of calibration further includes the step of calibrating an antenna transmit path for a RF traffic transceiver apparatus chain at a frequency selected to include one or more frequencies in the hop list to determine a set of weighting parameters for the antenna transmit path at the one or more frequencies. A self-calibrating frequency hopping adaptive base transceiver station is also provided.
12 Citations
13 Claims
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1. A method comprising:
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directing RF energy to a first mobile unit to obtain a first signal level, by an entire adaptive base transceiver station having an adaptive antenna array including an RF traffic transceiver apparatus chain; generating, by said entire adaptive base transceiver station, a null in a direction of said first mobile unit to obtain a second signal level; obtaining a peak gain derived from said first signal level and said second signal level, wherein said directing is in response to a periodic interruption of a frequency hopping process while a call is in progress, wherein said periodically interrupting comprises routing said call to an RF beacon transceiver apparatus, calibrating an antenna transmit path for said RF traffic transceiver apparatus chain at a selected frequency to determine a set of weighting parameters for said antenna transmit path at said selected frequency; and returning said call to said frequency hopping process. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An article of manufacture including a non-transitory computer readable medium having instructions stored thereon that, in response to execution by a computing device, cause said computing device to perform operations comprising:
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directing RF energy to a first mobile unit to obtain a first signal level, by an entire adaptive base transceiver station having an adaptive antenna array including an RF traffic transceiver apparatus chain; generating, by said entire adaptive base transceiver station, a null in a direction of said first mobile unit to obtain a second signal level; obtaining a peak gain derived from said first signal level and said second signal level, wherein said directing is in response to a periodic interruption of a frequency hopping process while a call is in progress, wherein said periodically interrupting comprises routing said call to an RF beacon transceiver apparatus, calibrating an antenna transmit path for said RF traffic transceiver apparatus chain at a selected frequency to determine a set of weighting parameters for said antenna transmit path at said selected frequency; and returning said call to said frequency hopping process. - View Dependent Claims (12, 13)
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Specification