WIRELESS COMMUNICATION NODE WITH CROSS-POLARIZED ANTENNAS AND AT LEAST ONE TRANSFORMATION MATRIX ARRANGEMENT

摘要

A node in a wireless communication network, where the node comprises at least one antenna arrangement. Each antenna arrangement in turn comprises at least four antenna devices with corresponding pairs of antenna ports which in turn comprise corresponding first antenna ports and second antenna ports. Each antenna device comprises at least one corresponding dual polarized antenna element arranged for transmitting and/or receiving signals at a first polarization via the corresponding first antenna port and for transmitting and/or receiving signals at a second polarization via the corresponding second antenna port, where the polarizations are mutually orthogonal. Each antenna arrangement further comprises at least a first transformation matrix arrangement which in turn comprises at least four corresponding virtual antenna ports. The antenna ports are at least indirectly connected to each transformation matrix arrangement. Each transformation matrix arrangement is arranged to set a certain polarization state for each corresponding virtual antenna port.

主权项

1. A node in a wireless communication network, the node comprising at least one antenna arrangement, where each antenna arrangement in turn comprises at least four antenna devices; a first antenna device with a first pair of antenna ports, a second antenna device with a second pair of antenna ports, a third antenna device with a third pair of antenna ports, and a fourth antenna device with a fourth pair of antenna ports, the antenna devices being arranged for transmission and reception within a certain geographical sector each pair of antenna ports comprising a corresponding first antenna port and second antenna port, each antenna device comprising at least one corresponding dual polarized antenna element arranged for transmitting and/or receiving signals at a first polarization via the corresponding first antenna port and for transmitting and/or receiving signals at a second polarization via the corresponding second antenna port, where the polarizations are mutually orthogonal, and where each antenna arrangement further comprises at least a first transformation matrix arrangement which in turn comprises at least four corresponding virtual antenna ports, the antenna ports being at least indirectly connected to each transformation matrix arrangement, wherein each transformation matrix arrangement is arranged to set a certain polarization state for each corresponding virtual antenna port.