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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 24U 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

Procured

RF test and measurement (GenComm GC747A)

24

Blank

1U blanking panel

23

SWITCH

Procured

Managed Gigabit Ethernet switch

22

Empty

N/A

Leave empty to allow network cables to be routed out

21

CIHOST

Procured

CI server

20

CICON

Assembled

CI controller

18-19

CIRAN1

Assembled

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

16-17

CIRAN2

Assembled

Base station #2 (LimeSDR Mini + UP2)

13-15

CIRANn

Future

Base stations #3 + #4 (TBC)

12

CIRF4x16

Assembled

RF distribution network A

11

CIRF4x16

Future

RF distribution network B (MIMO)

10

CIMODS8

Assembled

8x LTE modem bank

8-9

CIMODQ4

Future

4x LTE (VoLTE) modem bank

7

AUDTST

Future

Audio test and mesurement (for VoLTE)

6

CICLKD

Assembled

Reference clock distribution

5

Shelf

1U shelf for general use, e.g. a local GPSDO

3-4

CIPSU

Assembled

12V + 5V DC power supply

1-2

UPS

Future

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.