Measurement method and apparatus

A measurement method and equipment technology, applied in the field of communication, can solve the problems of complex installation and maintenance, high cost, etc., and achieve the effect of increasing beam intensity, saving measurement cost, and facilitating widespread deployment

Active Publication Date: 2018-12-07
HUAWEI TECH CO LTD
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Problems solved by technology

However, the collimation components require high-precision processing, complex installation and maintenance, and high cost

Method used

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  • Measurement method and apparatus
  • Measurement method and apparatus
  • Measurement method and apparatus

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Embodiment Construction

[0034] An embodiment of the present invention provides an air interface measurement system, which can measure air interface beam parameters of electromagnetic waves emitted by a device within a medium-to-near field distance. refer to figure 1 , the air interface measurement system includes a first device 10, a second device 20 and a system controller 30, the second device 20 can measure the electromagnetic waves emitted by the first device 10 at the air interface, and obtain the air interface beam parameters of the electromagnetic waves emitted by the first device 10 . The system controller 30 can control the first device 10 and the second device 20 to complete the entire measurement process.

[0035] Wherein, the distance between the first device 10 and the second device 20 is smaller than the far-field boundary distance. Far field boundary distance is equal to 2d 2 / λ, wherein, d is the antenna aperture of the first device, and λ is the wavelength of the electromagnetic w...

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Abstract

The embodiments of the present invention disclose a measurement method and apparatus and belong to the communication field. According to the measurement method and apparatus adopted, a small-size measurement system can be utilized to realize an equivalent far-field measurement effect in a short distance, measurement costs can be decreased, and the wide deployment of the measurement system can be benefitted. The method includes the following steps that: the compensation values of all antenna groups except a target antenna group in an antenna array are determined according to the characteristicparameters of the antenna groups and the characteristic parameters of the target antenna group, wherein the compensation values include phase compensation values and amplitude compensation values; electromagnetic waves emitted by each antenna unit of the antenna groups are adjusted according to the compensation values of the antenna groups, so that phases and amplitudes by which the electromagnetic waves emitted by each antenna unit in the antenna array arrive at measurement probes can be identical, wherein the electromagnetic waves are used to measure the air interface beam parameters of a first device, and a distance between the measurement probes of the first device and a second device is smaller than a far field boundary distance.

Description

technical field [0001] The embodiments of the present application relate to the communication field, and in particular, to a measurement method and equipment. Background technique [0002] Massive Multi-input and Multi-output (Massive-MIMO) technology based on phased array antennas is widely used in 5G communication systems. Both the network equipment and the terminal equipment may be antenna arrays composed of multiple antenna units that can independently control the phase (or time delay) according to a certain spatial layout. [0003] Generally, an over the air (Over the Air, OTA) test technology may be used to test the air interface beam index of the network device or the terminal device. Specifically, an OTA measurement system is deployed in an anechoic chamber to obtain air interface beam indicators of network equipment or terminal equipment. The OTA measurement system includes the measurement probe and the device under test (network device or terminal device). In ord...

Claims

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Application Information

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IPC IPC(8): H01Q3/28H01Q3/34H01Q21/00G01R29/10
CPCH01Q3/28H01Q3/34H01Q21/00G01R29/10H01Q3/267H04B17/12G01R29/0892
Inventor 唐毅张志伟李峰
Owner HUAWEI TECH CO LTD
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