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Method for testing implicit beamforming performance of a multiple-input multiple-output radio frequency data packet signal transceiver

A beamforming and data packet technology is applied in the field of testing radio frequency data packet signal transceiver devices under test, which can solve the problems of less signal path phase difference and inability to achieve optimal beamforming performance.

Inactive Publication Date: 2017-03-22
LITEPOINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, without the ability to easily correct for phase differences in the device's signal paths, beamforming performance will be suboptimal

Method used

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  • Method for testing implicit beamforming performance of a multiple-input multiple-output radio frequency data packet signal transceiver
  • Method for testing implicit beamforming performance of a multiple-input multiple-output radio frequency data packet signal transceiver
  • Method for testing implicit beamforming performance of a multiple-input multiple-output radio frequency data packet signal transceiver

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Embodiment Construction

[0027] The following detailed description is of exemplary embodiments of the claimed invention with reference to the accompanying drawings. These descriptions are intended to be illustrative and not to limit the scope of the invention. Such embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, and it is to be understood that other embodiments may be practiced with certain changes without departing from the spirit or scope of the invention.

[0028] Throughout this disclosure, it is understood that the individual circuit elements described may be singular or plural in number unless expressly indicated to the contrary herein. For example, the terms "circuit" and "circuitry" may include single or multiple components, which may be active and / or passive, and connected or otherwise coupled together (e.g., as one or more integrated circuit chip) to provide the described functions. Additionally, the term "signal" may refer to on...

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Abstract

Method for testing implicit beamforming performance of a multiple-input multiple-output (MIMO) radio frequency (RF) data packet signal transceiver device under test (DUT). The data packet signals forming the sequential data packet signal transmissions used for beamforming are produced with a selectively varied phase difference and conveyed via internal RF signal paths to external transmit terminals. Combining these transmitted data packet signals produces a combined data packet signal in which a peak power occurs during which a particular phase difference is being induced between the sequential DUT data packet signal transmissions used for the beamforming. This phase difference corresponds to the difference in RF signal phase lengths between the internal RF signal paths of the DUT, and is thereby indicative of the amount of phase shift needed between the sequential DUT data packet signal transmissions used for the beamforming to enable optimal implicit beamforming performance.

Description

Background technique [0001] The present invention relates to testing radio frequency (RF) packet signal transceiver device under test (DUT), and in particular to testing the implicit beamforming performance of multiple input multiple output (MIMO) DUT. [0002] Many of today's electronic devices use wireless technology for both connectivity and communication purposes. Because wireless devices transmit and receive electromagnetic energy, and because two or more wireless devices may interfere with each other's operation due to their signal frequencies and power spectral densities, these devices and their wireless technology must comply with various wireless technology standard specifications. [0003] When designing such wireless devices, engineers take extra care to ensure that such devices will meet or exceed every specification set forth in the standards for the wireless technology they incorporate. In addition, when these devices later enter mass production, they are tested...

Claims

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Application Information

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IPC IPC(8): H04B7/0413H04W24/02H04B7/08H04B7/06
CPCH04B7/0617H04B7/084H04B7/086H04B7/0413H04W24/02
Inventor 克里斯蒂安·沃尔夫·厄尔高罗曼·希尔特石广
Owner LITEPOINT
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