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Hybrid beamforming method and device

A mixed beam and shape-forming technology, applied in the field of information processing, can solve the problems of large gap between cost and performance, sacrifice of performance gain, low cost, etc., to achieve the effect of ensuring hardware cost and system performance

Active Publication Date: 2020-06-30
SANECHIPS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The number of radio frequency links and the number of antennas in the first full connection method are the same, and the cost is very high; the second connection method is simpler in structure than the first one, low in cost and easy to implement, but at the expense of performance gain
[0004] As the number of antenna ports and physical numbers increases, the cost and performance gap between the two connection forms of hybrid beamforming will become larger and larger

Method used

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  • Hybrid beamforming method and device

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Embodiment 1

[0100] FIG. 4( a ) is a schematic diagram of a hybrid beamforming connection method provided by Embodiment 1 of the present invention. As shown in Fig. 4(a), the shaping of analog beam and digital beam is performed jointly. The 5G NR base station (gNB) first undergoes baseband digital processing to form a multi-port digital beamforming signal stream, and then sends it to the antenna group selection unit through corresponding multiple radio frequency (RF) front ends. The corresponding antenna group is connected under the control of the selected signal, and finally the beam-formed radio frequency signal is sent out through multiple physical antennas. Among them, the antenna group selection process includes three types of polling: antenna group switching, analog beam and digital beam, and the calculation is completed inside the receiving end. Specifically include:

[0101] Step A1, the RF front end of the gNB periodically switches the connection with the antenna group, and perf...

Embodiment 2

[0112] FIG. 4( b ) is a schematic diagram of a hybrid beamforming connection mode provided by Embodiment 2 of the present invention. As shown in Fig. 4(b), the shaping of the analog beam and the digital beam are performed independently. The 5G NR base station (gNB) first undergoes baseband digital processing to form a multi-port digital beamforming signal stream, and then sends it to the antenna group selection unit through corresponding multiple radio frequency (RF) front-ends and phase shifters. The corresponding antenna group is connected under the control of the selected signal, and finally the beam-formed radio frequency signal is sent out through multiple physical antennas. The hybrid beamforming process actually includes three types of polling: switching of antenna groups, analog beams and digital beams. The first two are completed by the cooperation of the transmitting end and the receiving end, and the last one is completed internally by the receiving end. The method...

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Abstract

The invention discloses a hybrid beam forming method and device. The method comprises the steps that a measurement request of an analog beam corresponding to physical antennas and a measurement request of a digital beam corresponding to radio frequency front ends are sent, the physical antennas are divided into at least two groups, and each group of physical antennas corresponds to one radio frequency front end; in a preset test period, the connection state of each group of physical antennas and the radio frequency front end is switched; after the test period is finished, the connection stateof the physical antenna and the radio frequency front end is managed according to the test result of the measurement request, wherein the test result comprises a test result of an analog beam and a test result of a digital beam.

Description

technical field [0001] The invention relates to the field of information processing, in particular to a hybrid beamforming method and device. Background technique [0002] An important feature of the 5G system is the use of massive antenna Massive MIMO (Massive Multiple Input Multiple Output) as a key technology to improve system reliability and capacity and expand cell coverage. In order to meet the requirements of the International Telecommunication Union-Advanced International Mobile Telecommunications (ITU IMT-2020) for the high system capacity of the 5G system, 3GPPP's 5G NR (New Radio) uses MassiveMIMO with up to 64 transmit ports, compared to 4G LTE -A's maximum 8 transmit ports has been greatly improved. Especially in the millimeter wave band, the signal wavelength is short, the antenna array occupies a small space, and the integration level is high, which is more suitable for configuring large-scale antennas. [0003] The 5G large-scale antenna adopts the form of ...

Claims

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Application Information

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IPC IPC(8): H04B7/06H04B7/08
CPCH04B7/0617H04B7/086H04B7/0691Y02D30/70
Inventor 邬钢
Owner SANECHIPS TECH CO LTD
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