Corning Optical Communications LLC

Corning Optical Communications Wireless Ltd

Ani Acquisition Sub, LLC

Shlomi Kaduri

Roi Yosy Ziv

Amit Gutman

Benjamin Imanilov

Yaniv Avhar

Beamforming codebook optimization in a wireless communication system (WCS) is provided. In a WCS, a wireless node (e.g., base station) simultaneously emits multiple reference beams in a coverage area based on a set of codewords that is optimized for a specific number (a full or a partial set) of antenna elements in an antenna array. The wireless node is configured to determine a different set(s) of codewords that are fine-tuned for forming the reference beams from a different number of the antenna elements in the antenna array and steer the reference beams toward identical directions. During deployment of the wireless node, there may be dead zones or low coverage zones. Aspects of the present disclosure facilitate the discovery of these low-coverage zones using feedback from multiple deployed Internet of Things (IoT) devices. Based on the feedback, the codebook of codewords may be optimized to reduce or eliminate such low coverage zones. Such an approach reduces reliance on manual walk-throughs and complicated iterative processes currently in use.

Beamforming codebook optimization in a wireless communication system (WCS)

Embodiments of the disclosure relate to calibrating a power amplifier. The power amplifier calibration circuit is configured to provide a plurality of bias signal combinations each including a respective first bias signal and a respective second bias signal to the power amplifier. Power amplifier performance parameters for each of the bias signal combinations can be measured and provided to a control circuit in the power amplifier calibration circuit. The control circuit is configured to rank the measured power amplifier performance parameters based on predefined ranking criteria and determines a selected bias signal combination that can optimize the power amplifier performance parameters of the power amplifier. As such, it is possible to calibrate the power amplifier to operate at a balanced performance level, thus helping to improve radio frequency (RF) coverage and performance of the remote unit in a wireless distribution system (WDS).

Calibrating a power amplifier such as in a remote unit in a wireless distribution system (WDS)

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Herzliya, Israel

Shlomi Kaduri