A communication system node comprising a re-configuration network
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A wireless communication system, reconfiguration technology, applied in specific array feed systems, antenna supports/mounting devices, antenna unit combinations with different polarization directions, etc., can solve the problem of insufficient utilization of power amplifier antenna element radiation pattern beams width etc.
Active Publication Date: 2013-01-16
TELEFON AB LM ERICSSON (PUBL)
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[0007] When a power amplifier is used, the above scheme does not fully utilize the power amplifier or preserve the beamwidth of the radiation pattern of the antenna element
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[0024] refer to figure 1 with figure 2 , there is a node 1 in the wireless communication system, the node 1 includes an antenna 2, the antenna 2 includes a first antenna port 3, a second antenna port 4, a third antenna port 5 and a fourth antenna port 6, each antenna port Connected to corresponding first antenna element 16 , second antenna element 17 , third antenna element 18 and fourth antenna element 19 in sequence.
[0025] Each antenna element is shown as a single antenna element, but this is only a schematic representation; in fact, each antenna element may constitute an antenna element column comprising a plurality of physical antenna elements. When the term "antenna element" is used hereinafter, it should be understood that it can refer to such figure 2 A single antenna element as shown in or multiple antenna elements in columns of antenna elements.
[0026] The first antenna element 16 and the second antenna element 17 are arranged in a first antenna row 28 and t...
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Abstract
The present invention relates to a node (1) in a wireless communication system, the node (1) comprising at least one antenna (2) which comprises an even number (A) of antenna ports (3, 4, 5, 6), at least four, where each antenna port (3, 4, 5, 6) is associated with a corresponding polarization (P1, P2), beam-width and phase center. The antenna ports (3, 4, 5, 6) are connected to a reconfiguration network (7) which is arranged for pair-wise linear combination of antenna ports (3, 4, 5, 6) of mutually orthogonal polarizations to a number (B) of virtual antenna ports (8, 9), which number (B) is equal to half the number (A) of antenna ports (3, 4, 5, 6). The virtual antenna ports (8, 9) correspond to virtual antennas and are connected to corresponding radio branches (10, 11). The present invention also relates to a corresponding method.
Description
technical field [0001] The present invention relates to a node in a wireless communication system, the node includes at least one antenna, and the antenna includes at least four even-numbered antenna ports, wherein each antenna port has a corresponding polarization, beam width and phase Center is associated. [0002] The invention also relates to a method in a node of a wireless communication system employing at least one antenna having an even number of antenna ports of at least four, wherein the method comprises the steps of connecting each antenna Ports are associated with corresponding polarizations, beamwidths, and phase centers. Background technique [0003] Among the nodes in a wireless communication system, it is sometimes necessary to employ a node such as a radio base station (RBS) whose main unit (MU) has a larger number of radio branches than a radio remote unit (RRU). Fewer baseband branches. [0004] One situation is when antennas and RRUs deployed for one s...
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