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Large-scale MIMO antenna array

A technology of antenna elements and power amplifiers, applied in radio transmission systems, resonators, electrical components, etc., can solve the problems of reduced beamforming efficiency, affecting Tx beamforming gain beamforming mode, high Tx power, and maximizing power savings Effect

Pending Publication Date: 2022-05-27
NOKIA TECHNOLOGLES OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Doing this is not free as it affects the Tx beamforming gain as well as the beamforming mode
Consequently, the beamforming efficiency is reduced compared to an ideal all-active massive MIMO antenna array, resulting in higher Tx power per data stream

Method used

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  • Large-scale MIMO antenna array
  • Large-scale MIMO antenna array
  • Large-scale MIMO antenna array

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0129] The following description is provided to enhance the understanding of the present invention, and should be understood to supplement and be read in conjunction with the description provided in the foregoing general section of this specification.

[0130] figure 1 A schematic block diagram of a first embodiment of an apparatus according to an exemplary aspect of the invention is shown.

[0131] figure 1 The principles implemented by the present invention are shown schematically. describe figure 1 , using the water storage system analogy below. exist figure 1 In , the memory (RF power storage device 120 ) is constantly being refilled by some (relatively) constant water flow (eg, the power supplied by the power amplifier 110 ) at a rate that depends, for example, on the average consumption rate. Thus, the flow of water (stored RF power) flowing out of the RF storage device 120 may vary according to the needs of the antenna array 130 . The depletion ratio depends, ...

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Abstract

An apparatus is disclosed, including at least one power amplifier coupled to at least one radio frequency power storage device, where the at least one power amplifier is configured to supply power to the at least one radio frequency power storage device, wherein the at least one power amplifier provides power to be used for amplifying the one or more radio frequency signals; wherein the at least one radio frequency power storage device is configured to store power of the at least one power amplifier for a period of time; one or more antenna elements coupled to the at least one radio frequency power storage device, where the at least one radio frequency power storage device is configured to output storage power to at least one antenna element of the one or more antenna elements, wherein the power is variably output depending on a power demand of the required radio frequency power and / or amplitude required to transmit the one or more radio frequency signals, wherein the power demand represents a power demand of the at least one antenna element to which the power is to be output. A corresponding method and system are also disclosed.

Description

technical field [0001] The following disclosure relates to the field of massive MIMO antenna arrays, or more specifically to apparatuses and methods for providing radio frequency power to one or more antenna elements. Background technique [0002] Massive MIMO (Multiple Input Multiple Output) is and will be an important part of future New Radio (NR) cellular communication systems. From a commercial perspective, there are challenges in the straightforward implementation of massive MIMO using one conventional RF chain per antenna element. For hundreds of antenna elements, the cost, size, and power consumption of massively deploying massive MIMO antennas would be prohibitive. In particular, the performance gain (eg, spectral efficiency) of massive MIMO antenna arrays typically does not increase linearly with the number of antenna elements, so there is a poor trade-off between complexity and cost versus performance gain. [0003] For this reason, it is widely believed that mas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0413H01P7/06
CPCH04B7/0413H04B7/0426
Inventor W·齐瓦斯R·西瓦西瓦·加尼森B·潘兹纳
Owner NOKIA TECHNOLOGLES OY