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AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsMarthinus Willem DA SILVEIRA, Leonard LIGHTSTONE, Neil MCGOWAN
Estimating the term…
A method and apparatus for calibrating an antenna array are described. Input signals and feedback signals are received, where the feedback signal is a combination of the input signals as captured after having traversed transmit paths and prior to being transmitted at a plurality of sub-arrays. A first interference reduced feedback signals is determined. A current estimation of the impairment function is determined. A second interference reduced feedback signals based on the current estimation of the impairment function, the input signals and the feedback signal. Responsive to determining that the power of the second interference reduced feedback signal satisfies a selection criteria, the current estimation of the impairment function is caused to be used for each one of the plurality of transmit paths for calibration of the antenna array and removing distortion.
A method of calibrating an antenna array of a base station to remove distortion incurred by input signals within a plurality of transmit paths in the base station, the antenna array including a plurality of sub-arrays, wherein each one of the plurality of sub-arrays is coupled to a respective one from the plurality of transmit paths for transmitting an input signal from the input signals to a wireless network, the method comprising the steps of:
A network element for calibrating an antenna array of a base station to remove distortion incurred by input signals within a plurality of transmit paths in the base station, the antenna array including a plurality of sub-arrays, wherein each one of the plurality of sub-arrays is coupled to a respective one from the plurality of transmit paths for transmitting an input signal from the input signals to a wireless network, the network element comprising:
A non-transitory computer readable storage medium that provide instructions, which when executed by a processor of a base station, cause said processor to calibrate an antenna array of a base station to remove distortion incurred by input signals within a plurality of transmit paths in the base station, the antenna array including a plurality of sub-arrays, wherein each one of the plurality of sub-arrays is coupled to a respective one from the plurality of transmit paths for transmitting an input signal from the input signals to a wireless network, by performing operations comprising:
Dependencies are inferred from the claim text.