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Massive MIMO performance conduction test system

A conduction test, large-scale technology, used in transmission systems, radio transmission systems, transmission monitoring, etc.

Inactive Publication Date: 2018-07-27
NANJING JIEXI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a large-scale MIMO performance conduction test system, which is used to solve the problem that the existing global cellular communication industry does not have an ideal laboratory test environment to simulate such channels.

Method used

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  • Massive MIMO performance conduction test system
  • Massive MIMO performance conduction test system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] combine figure 2 and image 3 As shown, in this embodiment, taking a 64X16 radio frequency matrix as an example, the large-scale MIMO performance conduction test system of this embodiment can realize changes in phase and attenuation parameters of 1024 channels.

[0048] The test environment of this embodiment includes a 5G base station, a 64X16 radio frequency matrix, and a mobile phone terminal, wherein the 5G base station is the 5G base station to be tested, and the mobile phone terminal is an ordinary mobile phone that is used to test the 5G base station. The 5G base station, the 64X16 radio frequency matrix, and the mobile phone terminal are The connection is conducted through radio frequency cables. Among them, the 64X16 radio frequency matrix is ​​a matrix channel composed of several radio frequency channels internally composed of power distribution networks. Each radio frequency channel has independently adjustable amplitude and phase modules, and they are all ...

Embodiment 2

[0053] to combine Figure 4 and Figure 7 As shown, in this embodiment, taking an 8X4 radio frequency matrix as an example, the massive MIMO performance conduction test system of this embodiment can realize changes in phase and attenuation parameters of 32 channels.

[0054] The test environment of this embodiment includes a 5G base station, an 8X4 radio frequency matrix, a channel meter, and a mobile phone terminal, wherein the 5G base station is the 5G base station to be tested, and the mobile phone terminal is an ordinary mobile phone that is used to test the 5G base station. The 5G base station, the 8X4 radio frequency matrix, and the mobile phone Terminals are connected in the form of radio frequency cable conduction. Among them, the 8X4 radio frequency matrix is ​​a matrix channel composed of several radio frequency channels internally composed of power division networks. On each channel, there are several radio frequency phase shifters and power dividers for changing t...

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Abstract

The invention provides a massive MIMO performance conduction test system, comprising a base station and an M*N radio frequency matrix, wherein the base station is used to send M paths of original signals; the M*N radio frequency matrix is used to receive the M paths of original signals sent by the base station, convert the received M paths of original signals into N paths of received signals, andsend the received signals to terminal equipment; and M*N paths of channels are formed between the M paths of original signals and the N paths of received signals, and each channel is provided with anattenuation module, a phase shifting module or an attenuation phase shifting module. According to the scheme of the invention, an external field channel environment that simulates a 5G massive antennaarray base station can be achieved by using the forms of the radio frequency matrix and a channel instrument, and the massive MIMO performance conduction test system can simultaneously satisfy the simultaneous change of the channel amplitude and phase of thousands of streams.

Description

technical field [0001] The invention relates to the technical field of antenna testing, in particular to a large-scale MIMO performance conduction testing system. Background technique [0002] Massive MIMO originated from phased array radar technology, and evolved into a cellular network multi-antenna communication system on this basis. Massive MIMO (multiple input multiple output technology) can utilize spatial multiplexing without adding new spectrum resources. The technology greatly improves cell capacity and throughput; massive MIMO has the characteristics of flexible networking (multi-point coordination), anti-interference (spatial diversity), and enhanced coverage (beamforming); currently, massive MIMO has been regarded as a It is a vital method for LTE, LTE+, especially in the 5G era to improve spectrum utilization efficiency. [0003] Massive MIMO plays an increasingly important role in the development of communication, and is now being paid more attention by the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0413H04B17/391H04W24/06
CPCH04B7/0413H04B17/3912H04W24/06
Inventor 曹宝华
Owner NANJING JIEXI TECH
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