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CI Hardware Platform

The continous integration hardware platform provides a combination of base stations and modem banks, with cabled RF and splitter/combiner network which features digitally controlled attenuation. The platform also includes support infrastructure such as clock distribution, interfacing and control.

The platform is modular in nature and housed in a 20U 19” equipment rack.

Subsystems

The CI platform is comprised of numerous subsystems and for details of these see the pages linked below and from the site menu. External links are provided for further details of COTS/third party components used, while details of original components developed as part of the project are hosted on this website.

Rack Layout

Position

Subsystem

Status

Description

TOP

RFTST

RF test and measurement (GenComm GC747A)

20

FAN

Fan tray

19

SWITCH

Managed Gigabit Ethernet switch

18

CIHOST

CI server

17

CICON

Build

CI controller

15-16

CIRAN1

Build

Base station #1 (LimeSDR-USB + Intel NUC)

13-14

CIRAN2

Base station #2 (LimeSDR Mini + UP2)

11-12

CIRF44

RF distribution network

10

CICLKD

Reference clock distribution

9

CIMODS8

Build

8x LTE modem bank

7-8

CIMODQ4

4x LTE (VoLTE) modem bank

3-4

CIPSU

Build

12V + 5V DC power supply

1-2

UPS

Uninterruptible power supply

Note

Future possible expansion options include:

  • a second RF network to enable MIMO testing

  • audio test capabilities for VoLTE voice quality measurement

Components

At this point the only custom components are the CONIO board set, which is used to provide a remote console, plus remote power and reset control, for SDR base stations.