Spirent Vertex

Vertex Channel Emulator

 

 

From SISO to high-density MIMO applications with one instrument

The Spirent Vertex Channel Emulator is a versatile platform that offers unprecedented scalability while supporting emulation of a large number of channel models. The simple plug-and-play design is built to support a broad range of applications that require varying channel densities, from basic applications like two-channel SISO to complex, high channel density applications like MIMO OTA and carrier aggregation, and supports configurations to evaluate future technologies such as 5G.

Vertex Block Diagram

What to Test

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MIMO OTA

Test the MIMO performance of your device in a realistic Over-the-Air environment, either with an anechoic or reverb chamber

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Virtual Drive Testing

Emulate up to sixteen SISO or eight 2x2 MIMO cells to accurately reproduce real network conditions in the lab

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Carrier Aggregation

Supports up to four 2x2 bi-directional carriers; each radio link can be modelled independently, simulating channel conditions to represent multiple carriers on the same or different eNodeBs

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Massive MIMO and Antenna Arrays

Integrate multiple Vertex instruments to support higher numbers of independent RF channels with real-time fading

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Mesh Networks

Supports up to 8x8 independent channel models, providing the capability to test a mesh network with up to eight nodes

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MIMO Beamforming

Enables the most accurate and consistent emulation of a variety of spatial channels and models

MIMO OTA

Spirent's Vertex MIMO OTA solution models real-world over the air environments and can be used with both anechoic and reverberation chambers. For anechoic chambers, Vertex supports up to 32 RF probes and two carriers with 16 dual polarized probes or 8 dual polarized probes on one instrument.  For reverberation chambers, up to four carriers can be aggregated on one instrument.

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Virtual Drive Testing

The ability to emulate a high number of cells in the lab, combined with Spirent’s Virtual Drive Test - Conversion Tool (VDT-CT) software makes the laborious process of drive testing easy and repeatable in the lab. Convert data from scanner log to active use and accurately reproduce those real network conditions in a matter of minutes.

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Features & Benefits

Scalability
Vertex is scalable to a broad range of applications. The hardware is capable of supporting as few as two bidirectional RF channels for basic RF testing and as many as 32 unidirectional RF channels to support high channel density applications in one instrument.
Modularity
Separate RF modules are optimized for unidirectional or bi-directional applications and support a variety of different frequency bands; which allows Vertex to be configured for specific test needs using minimal hardware.
High channel density in a compact space
Vertex supports up to 36 RF ports and 64 digital links in one 6U rack height. It enables more efficient use of hardware for tests that require higher RF channel counts, such as sophisticated MIMO applications and next-generation 5G services.
Remote programming interface (RPI)
Remote programing is supported through TCP/IP. The RPI commands provide seamless backward compatibly to Spirent’s VR5 HD channel emulator.
Comprehensive channel modelling support
The built-in Vertex propagation library offers a vast selection of standard channel models and makes it easy to edit and save changes to create user-defined models, both classical and geometrical.
Support for IoT
Vertex supports standards-based WINNER/WINNER-II channel models to facilitate performance and co-existence testing in a variety of network environments with IoT deployments.

Data sheet

Vertex Channel Emulator


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Technical Specifications

Vertex Channel Emulator


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OnDemand Webinar

MIMO OTA Testing Insights: Methodology, benchmarking study results and the CTIA test plan

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White paper

Fading Basics—Narrow Band, Wide Band and
Spatial Channels

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White paper

Correlation-Based Spatial Channel Modeling


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White paper

Path-Based Spatial Channel Modeling


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