METHOD AND DEVICE FOR GENERATING BROADCAST BEAMS IN MASSIVE MIMO SYSTEMS

A method and transmitter (10, 31) for generating broadcast beam patterns in massive MIMO systems, the transmitter (10, 31) comprising a rectangular antenna array (11,32) with a number N1 of antenna elements in the horizontal direction and a number N2 of antenna elements in the vertical direction. Th...

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Bibliographic Details
Main Authors SERNA SANTIAGO, Elena, LORCA HERNANDO, Javier, MARTÍ MOLINA, Mónica
Format Patent
LanguageEnglish
French
German
Published 31.03.2021
Subjects
ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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Summary:A method and transmitter (10, 31) for generating broadcast beam patterns in massive MIMO systems, the transmitter (10, 31) comprising a rectangular antenna array (11,32) with a number N1 of antenna elements in the horizontal direction and a number N2 of antenna elements in the vertical direction. The MIMO transmitter (10, 31) generates broadcast beam patterns with determined beam widths in horizontal and vertical dimensions to cover a sector area (14) of a cell by the rectangular antenna array (11, 32) radiating N1xN2 radiofrequency signals (35) at a carrier frequency, the sector area (14) being where a user equipment (12, 34) requests from the MIMO transmitter (10, 31) access to the cell. The beam widths in horizontal and vertical directions are determined by using an optimum set of complex excitation coefficients calculated from a discretized continuous-space array factor ψ(θ, ϕ), which is based on a discretization over the elevation angle θ and the azimuth angle ϕ of the antenna elements.
Bibliography:Application Number: EP20190382830