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AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsVijay Venkateswaran, Bo Göransson, Joao Vieira
Estimating the term…
There is provided mechanisms for calibrating transmit antenna chains and receive antenna chains of an antenna system. A method is performed by a network node. The method comprises obtaining a set of observations from bi-directional sounding of pairs of antennas of the antenna system. Each of the antennas has one transmit antenna chain and one receive antenna chain. The observations are represented by a composite product of transmit calibration weights, receive calibration weights, and signal leakage terms. The method comprises estimating the transmit calibration weights and the receive calibration weights from a decomposition of the composite product. The method comprises calibrating the transmit antenna chains and the receive antenna chains by applying as calibration factors the estimated transmit calibration weights to the transmit antenna chains and the receive calibration weights to the receive antenna chains.
A method for calibrating transmit antenna chains and receive antenna chains of an antenna system, the method being performed by a network node, the method comprising:
A network node for calibrating transmit antenna chains and receive antenna chains of an antenna system, the network node comprising processing circuitry, the processing circuitry being configured to cause the network node to:
A computer program product for calibrating transmit antenna chains and receive antenna chains of an antenna system, the computer program product comprising a non-transitory computer readable medium storing computer code which, when run on processing circuitry of a network node, causes the network node to:
Dependencies are inferred from the claim text.