Measurement method and apparatus

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...

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