CRIBS
CatchAll-SE Receiver
CDCS-2 and TRAMPS-2
MAC-INPN-24-039-01
Solutions For Wireless Communications
Company Profile
Specialists in mobile radio technology
Provision of technical consultancy and products
Independent
High calibre
Flexible
Reliable
>20 years of service
© Multiple Access Communications Ltd 2009
Areas of Operation
Cellular
Network operations
Security
Defence
TETRA
SIGINT/COMINT
Network monitoring
Adaptation of
commercial protocols
Technology research
Ad hoc networks
New technology
Patent reviews
Equipment design
Slide 3
© Multiple Access Communications Ltd 2009
CRIBS
The CRIBS™ TETRA coverage measurement system is a
complete turnkey solution for RF coverage measurement.
Walk test.
¾ Drive test.
¾
The package contains:
CatchAll-SE™ RF measurement receiver.
¾ A rugged tablet PC with pre-installed
CDCS-2 data capture software.
¾ A high capacity Lithium Ion battery.
¾ A padded backpack with a
purpose-designed mounting frame
and TETRA antenna.
¾
Slide 4
© Multiple Access Communications Ltd 2009
CatchAll-SE Receiver
Measurement receiver for PMR networks (TETRA, Tetrapol, etc.)
in the frequency range 300MHz to 2000MHz.
Instantaneous sampling of 5MHz BW.
¾
Can measure simultaneously the RSSI of 200 TETRA channels at a rate of
up to 125 times per second.
Decodes the “Sync” and “SysInfo” messages carried on TETRA
broadcast channels and estimates C/I.
Smaller and lower-power version of MAC Ltd’s CatchAll™ receiver
with enhanced functionality.
¾
Slide 5
Includes accelerometer for improved positional accuracy during walk
testing.
© Multiple Access Communications Ltd 2009
CatchAll-SE versus
Scanning Receiver
Slide 6
© Multiple Access Communications Ltd 2009
CatchAll-SE versus
Test Mobile
CatchAll-SE
¾
¾
¾
¾
¾
Fast RSSI measurement
Network/Handset
independent
Sees all channels
Calibrated
Adjacent channels visible
Test Mobile
¾
¾
¾
¾
Slide 7
Provides detailed protocol
information
Can provide voice quality
data
Representative of a
standard handset
Tests uplink and downlink
© Multiple Access Communications Ltd 2009
CDCS-2 Data Capture
Software
CDCS-2 is the data capture
software provided in the CRIBS
package.
Pre-installed on the tablet PC.
¾ Data capture using waypoints.
Suitable for performing walk-test
measurements for example inside
buildings.
¾ Data capture using GPS. Suitable for
walk-testing or drive-testing
outdoors.
¾ Time-triggered or distance-triggered
capture (using external wheel pulse).
¾
Slide 8
© Multiple Access Communications Ltd 2009
In-building Surveys using
Waypoints
Waypoints are added to the map
to show the current position.
Accelerometer data are used to
detect if the user is walking or
stationary when between
waypoints.
¾
¾
Slide 9
Measurements can be located more
accurately.
No time pressure on the user when
adding the next waypoint.
© Multiple Access Communications Ltd 2009
Drive Testing using GPS
Position information comes from
GPS.
¾
Internal GPS unit in the CatchAll-SE.
¾
Alternatively, the user can use an
external GPS unit.
During capture, the route followed is
displayed as a snail-trail on the map.
Slide 10
© Multiple Access Communications Ltd 2009
QoS Measurement
On-the-fly processing gives a live
display of signal-strength and QoS.
RSSI.
¾ Estimated C/I.
¾ Location Area Code (LAC).
¾
QoS data from “Sync” and “SysInfo”
messages carried on TETRA
broadcast channels.
No post-processing required for
results files.
¾
Slide 11
Quickly determine the reasons for poor
coverage.
© Multiple Access Communications Ltd 2009
Building Plan Import
Easily import building
floor plans.
Creates loadable map
file from an image file.
¾
.jpg, .tiff etc.
Can import a single
image or batch import
multiple images.
Slide 12
© Multiple Access Communications Ltd 2009
TRAMPS-2
TRAMPS-2 is an application for mapping and analysing data from
MAC Ltd's CatchAll and CRIBS TETRA measurement tools.
Suitable for both in-building and wide-area data analyses.
¾
Uses the same maps and building plans as CDCS-2.
Accumulates and averages RSSI and QoS data into a grid of data
bins.
Selectable bin size.
¾ Multiple files can be loaded as one set of drive test data.
¾ Directly load data captured with CDCS-2.
¾
Quick and easy to use.
Slide 13
© Multiple Access Communications Ltd 2009
Multiple Display Modes
Strongest Server.
¾
¾
¾
¾
¾
Ch. Above thresh.
RSSI.
LAC.
C/I.
% AACH decode.
Single Channel.
RSSI.
¾ LAC.
¾ C/I.
¾ % AACH decode.
¾
Slide 14
© Multiple Access Communications Ltd 2009
Difference Mode
Compare the
difference between
two sets of data.
¾
Slide 15
Eg. Comparison
over time.
© Multiple Access Communications Ltd 2009
Bin Inspector
Drill-down and
inspect the data for
a selected bin.
¾
Slide 16
Save to .csv file.
© Multiple Access Communications Ltd 2009
Basestations
Highlight data bins
associated with a
particular
basestation.
Slide 17
© Multiple Access Communications Ltd 2009