ASCOM SRU Datasheet

PRODUCT SHEET
Product: TEMS ™ Automatic – Scanning Receiver Unit
SRUs (Scanning Receiver Units) are light-
weight and versatile devices dedicated to GSM
and WCDMA scanning. One or two SRUs can be
connected to TEMS Automatic RTUs (Remote Test
Units) performing autonomous data collection.
SRU – SCANNING RECEIVER UNIT FOR
TEMS AUTOMATIC
™
Each SRU is a standalone device that can be conveniently moved
between RTUs as dictated by testing requirements.
This creates a flexible and highly cost-efficient scanning solution,
allowing operators and service providers to enhance network performance
during deployment as well as during optimization and troubleshooting.
The SRU is built on the same hardware as commercial Sony Ericsson
mobile phones. This means that the SRU delivers precisely the same signal
strength readings as the commercial phones, using identical circuitry. More
generally, being equipped with identical hardware, the SRU has no need to
simulate any part of the phone's scanning procedure in software.
Furthermore, since it is devoted to the task of scanning, the SRU vastly
outperforms commercial phones in terms of scanning speed and update rate.
(Phones do not scan any more than what is required to maintain good radio
performance.) The SRU is fully on a par performance-wise with scanners
based on dedicated hardware.
In GSM networks, the SRU undertakes RSSI scanning of selected channels
or entire GSM bands. BSIC decoding can optionally be done whenever possible.
For WCDMA, the SRU performs CPICH scanning on up to 12 carriers at
a time. A snapshot of System Information Message can be taken once for
each cell camped on. Furthermore, a special "BCH scanning" mode is available
for continuous monitoring of System Information. The latter is useful for
example when conducting a close-up investigation of parameter settings.
The SRU contains an Ericsson F3607gw Mobile Broadband Module
supporting frequency bands as follows:
GSM 850/900/1800/1900 MHz
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WCDMA 900/1900/2100 MHz (Europe) or 850/1900/2100 MHz (US)
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