Analog beam forming antenna array with low complexity
A technology for simulating beams and antenna arrays, applied in the field of communication, can solve the problems of phase shifter control circuit complexity, cost and loss increase, and achieve the effects of reducing complexity and cost, simplifying design, and reducing complexity
Pending Publication Date: 2018-08-28
GUANGDONG BROADRADIO COMM TECH
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Problems solved by technology
The digital phase shifter used in the existing 5G technology adopts a normalized form, that is, it has the same number of bits and the same amount of phase shift; the more bits of the phase shifter, the higher the accuracy of the beam scanning angle, but the phase shift The more complex the device itself and its control circuit are, the cost and loss will increase significantly with the increase of the number of bits and the amount of phase shift
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[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0028] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.
[0029] In addition, if there are descriptions involving "first", "second" and ...
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The invention discloses an analog beam forming antenna array with low complexity, which relates to the technical field of communication, and comprises one or more sub-arrays with independent analog beam-forming functions. Each sub-array comprises a metal reflection plate, an antenna radiation unit array and a digital phase shifter. The digital phase shifter is directly connected to the radiation unit or the unit set, and at least one digital phase shifter has different numbers of digits or has different delay total threads, and the complexity degree can be reduced by reducing the phase shifting amount of a part of phase shifters. According to the embodiment of the invention, the beam forming scheme is simulated, and the digital phase shifters with different bit numbers or different delay total lengths are combined to be used, and the complexity of the Massive MIMO antenna array is reduced, and the power consumption and the cost are reduced, and an economic and more practical solution for large-scale deployment of a 5G mobile communication system is provided.
Description
technical field [0001] The invention relates to the technical field of communications, in particular to a low-complexity analog beamforming antenna array. Background technique [0002] The fifth generation mobile communication system (5G) uses massive multiple input and output (Massive MIMO) technology. Up to 64 or more antenna units are deployed on the antenna side of the base station, and multiple antennas are arranged on the mobile terminal at the same time, which greatly enhances the space. Multiplexing capability, achieving breakthrough innovation in wireless transmission technology, greatly improving spectrum efficiency and power efficiency. [0003] In theory, a Massive MIMO system with an all-digital beamforming method has the best performance, but requires expensive digital-to-analog / analog-to-digital conversion modules, which have problems such as high cost, excessive data transmission and processing capacity. The digital-analog hybrid beamforming method puts the ...
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IPC IPC(8): H01Q23/00H01Q21/06H01Q21/24H01Q19/10
CPCH01Q19/10H01Q21/06H01Q21/24H01Q23/00
Inventor 吴泽海吴永乐庄正李明星吴壁群苏振华
Owner GUANGDONG BROADRADIO COMM TECH