R&S®ROMES4

Drive Test Software

Mobile coverage and
QoS measurements in
mobile networks

Product Brochure | Version 08.00

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 R&S®ROMES4 When R&S®ROMES4 is combined with the R&S®TSMx
band-unlimited scanners, the measurements help typical
customers (such as network operators, regulatory authori-

Drive Test Software ties, service providers, chipset manufacturers and govern-
ment authorities) complete their work quickly and easily.

At a glance Key facts

❙❙ One software for all technologies from a single source
❙❙ Flexible software licenses that meet user requirements
reduce startup costs
The R&S®ROMES4 drive test software, the unique ❙❙ Parallel measurements with up to eight mobile devices
scanners and network problem analyzer (NPA) tool per license save time, allowing more effective utilization
of existing resources and saving operating expenses
from Rohde & Schwarz provide an all-in-one solution
(OPEX)
for network analysis and optimization. ❙❙ High-precision, fast RF test and measurement equipment
(Rohde & Schwarz scanners) delivers a large quantity of
reliable measurements and results
R&S®ROMES4 is the universal software platform for net- ❙❙ Automated analysis at the end of the measurement using
work engineering and network optimization systems from the integrated replay function or the network problem
Rohde & Schwarz. In combination with other test and mea- analyzer (NPA) considerably reduces OPEX
surement equipment such as wireless communications ❙❙ Automatic identification of GSM interference
scanners and test mobile phones, it provides solutions for considerably reduces OPEX (up to 80 % potential savings
all essential tasks involved in coverage measurements, in- compared with standard analysis)
terference identification, performance measurements and ❙❙ Unique scanner for GSM, WCDMA, CDMA2000®
quality analysis in ­mobile networks. In addition to measur- 1xEV-DO, WiMAX™, LTE and TETRA in all bands,
ing and displaying test ­parameters, data is processed in- decoding of broadcast information
stantly and statistics are calculated in realtime.

R&S®ROMES4 supports GSM/EDGE, WCDMA/HSPA+,

CDMA2000® 1xEV-DO Rev. A, WLAN (IEEE 802.11a, b,
g, n), WiMAX™ (IEEE 802.16e), LTE, DVB-T, DVB-H and
TETRA. Standard-compliant RF level measurements can
be time- and route-triggered over a very wide ­frequency
range (9 kHz to 7 GHz). Due to its highly modular struc-
ture, the platform can be expanded at any time for new
technologies. The test software runs on a ­Microsoft
­Windows 7/10 (64-bit) PC.

Straightforward R&S®ROMES4
drive test software user interface.

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 R&S®ROMES4 LTE broadcast (eMBMS) network optimization
❙❙ R&S®ROMES4 in combination with a Rohde & Schwarz
LTE scanner and an LTE eMBMS test mobile

Drive Test Software ❙❙ Network planning

❙❙ Network rollout
❙❙ Detection of intersymbol interference

Benefits and ❙❙ Check of network configuration

❙❙ Validation of network performance
▷▷ page 10

key features LTE downlink allocation analyzer (DLAA)

❙❙ Allocation analysis of the strongest eNodeB in
the downlink
Easy operation and high flexibility ❙❙ Variety of applications
❙❙ Easy-to-use interface that adapts to the user's level ▷▷ page 12
of knowledge
❙❙ Ready to use in no time thanks to workspaces and Parallel spectrum measurement
projects ❙❙ Broadband spectrum measurement
❙❙ Easy system configuration with device manager and ❙❙ Detection of broadband interferers, neighborhood
wizards interference and uplink activities
❙❙ Fast setup due to automatic channel detection ▷▷ page 13
❙❙ Support of numerous map data formats
❙❙ Powerful analysis tools Location estimation of 2G/3G and 4G base
▷▷ page 4 stations
❙❙ Creation of a base station list during a drive test
Automatic handover and neighborhood analysis ❙❙ Requires only scanners and GPS
❙❙ Automatic detection of missing neighboring cells during ▷▷ page 14
drive testing
❙❙ Improvement of network coverage Indoor measurements
▷▷ page 6 ❙❙ Stationary or moving measurements indoors – without
GPS signal
Numerous application tests ❙❙ Combined indoor/outdoor measurements
(data throughput/DQA) ▷▷ page 15
❙❙ Creation of different application jobs
■■ Data throughput measurement on a PC GSM interference analysis with automatic
■■ Innovative on-device testing
interferer identification
❙❙ Output of KPIs and the most important network ❙❙ Automatic measurement and identification of interferers
parameters in a report from own GSM mobile network
▷▷ page 7 ❙❙ Evaluation of BCCH and TCH channels allows
full‑featured analysis
Full overview of layer 1 and layer 3 ❙❙ Detection of adjacent-channel and co-channel interferers
❙❙ Display of mobile phone activities in layer 3 ▷▷ page 16
❙❙ Fast analysis of interrupted connections
▷▷ page 8 R&S®ROMES4NPA: analysis and evaluation of
network problems
Test of voice quality – incl. VoLTE ❙❙ Automatic detection, analysis and documentation of
❙❙ User-friendly configuration for checking voice quality trouble spots
❙❙ Complete end-to-end measurement from the user ❙❙ Sophisticated algorithms for supporting users
perspective ❙❙ Broad range of optional add-on modules for voice quality
❙❙ Based on POLQA standard and data tests as well as coverage and neighborhood
▷▷ page 9 analysis
❙❙ Comprehensive set of reporting functions
▷▷ page 18

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 Easy operation and up this procedure, users can create a project. A project
contains all the settings of a workspace and reduces the
­overall volume of the modules to be loaded when the soft-

high flexibility ware is started. The startup wizard makes it possible to

fully automatically load and start a project, workspace or
test file.

Easy-to-use interface that adapts to the user's Easy system configuration with device manager
level of knowledge and wizards
Featuring different user levels, R&S®ROMES4 can adapt to Multiple wizards help users configure a test mobile
the user's level of knowledge. The different levels make it phone in order to perform application tests such as FTP
possible to adjust the displayed views and signals to what or HTTP downloads. In just three quick steps, the user
is most important for the individual user. Experienced and is ready to start testing. The device manager integrat-
novice users alike finish their work faster. ed in R&S®ROMES4 automatically finds and displays all
connected test mobile phones and R&S®TSMx scanner
Ready to use in no time thanks to workspaces options. With just three mouse clicks, the user can con-
and projects figure numerous application tests such as an FTP down-
Users can create a workspace in which to store all settings load. After successfully loading the drivers, R&S®ROMES4
and loaded drivers. At the start of a new drive test, all they ­automatically opens a selection of important windows that
need to do is load this workspace and the test system is ­display measured data. The test can then be started.
immediately ready to use. To further simplify and speed

Overview of the R&S®ROMES4 graphical user interface

Overview of key
parameters Menu and tools Mobile activity LTE scanner

Route with BTS icons L3 protocol messages Parameter comparison

for GSM, UMTS and LTE

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 Fast setup due to automatic channel detection Support of numerous map data formats
The R&S®ROMES4ACD automatic channel detection fea- In addition to the MapInfo map data format, R&S®ROMES4
ture enables the R&S®TSMW and R&S®TSME drive test also supports OpenStreetMap (OSM). Once downloaded,
scanners to automatically detect active channels in a maps are also available offline. This is particularly import-
specified band. LTE, UMTS and CDMA2000®/1xEV-DO ant when testing data calls to ensure that measurement
networks are supported. The feature can be optionally en- results are not affected by map downloads. Measurement
hanced by a spectrum scan that significantly speeds up results can be exported in ASCII format or converted to a
the detection process. This feature eliminates the need to Google Earth format. With the Google Earth format, a drive
set up channel lists prior to a measurement campaign. The test can be displayed on a map with no additional effort.
measurement system dynamically identifies new channels
and adds them to the workspace during the drive. This Powerful analysis tools
is particularly relevant in networks deployed in a shared When multiple, long drive tests need to be automatically
spectrum with other cellular standards, where channel evaluated for network errors and the cause for these er-
­frequency and channel bandwidth frequently change. rors determined, the R&S®ROMES4NPA network problem
analyzer is the ideal tool. The base module for displaying
ETSI key performance indicators (KPI) and providing an
overview of the data in the measurement files is included
with R&S®ROMES4. Optional modules for dedicated error
analysis of voice or data calls automatically evaluate and
display the error causes. Other modules enable analysis of
coverage test data and neighborhood relationships as well
as delta and comparative analysis. LTE MIMO measure-
ments can also be analyzed and evaluated (see page 20
for more details).

OpenStreetMap (OSM)
OpenStreetMap (OSM) is a user-editable world map that is available
at the following Internet address:
http://www.openstreetmap.org/

OSM is a wiki project in which users can participate by uploading and

editing geographical information such as GPS tracking data or the
course of a road or river. This world map is growing daily.

OpenStreetMap data can be used freely under the terms of the

­Creative Commons Attribution-ShareAlike 2.0 license.

Quick overview thanks to automatic channel detection.

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 Automatic handover Automatic detection of missing neighboring cells
during drive testing
Automatic neighborhood analysis is based on a base

and neighborhood ­station list and the base stations' broadcast signals that
are decoded by the R&S®TSMx scanners. These system
information blocks (UMTS and LTE) or system informa-

analysis tion types (GSM) include information that is normally used

by test mobile phones to identify and monitor ­relevant
­neighboring cells. The report containing the measured
­values of the neighbor channels is forwarded to the
Requirements base station. If necessary, the base station can use this
❙❙ R&S®ROMES4 ­response to initiate a handover.
❙❙ R&S®ROMES4HOA
❙❙ R&S®ROMES4T1Q or Improvement of network coverage
R&S®ROMES4T1W or Unlike test mobile phones, the R&S®TSMx scanners see
R&S®ROMES4T1E all signals. These signals can be allocated to the relevant
❙❙ R&S®TSMx GSM/UMTS scanner neighboring cells. R&S®ROMES4 is thus able to auto-
❙❙ Test mobile phone matically compare the measured data from the scanners
❙❙ R&S®ROMES4GSM (GSM driver) or and the test mobile phones against a base station list to
R&S®ROMES4WCQ (Qualcomm driver) or ­identify any missing neighboring cells. These missing cells
R&S®ROMES4SAM (Samsung driver) may originate during the setup of a network and, in the
worst case, can terminate a call.

The SIB analyzer integrated in R&S®ROMES4 compares

the neighboring cells measured by the scanner against
those in the base station list. Neighboring cells that were
detected but do not appear in the list are marked in yellow,
indicating a missing neighborhood. This automatic neigh-
borhood analysis works for UMTS; a comparable function-
ality exists for GSM. Both work in realtime. For TETRA and
LTE, this functionality is included in the R&S®ROMES4NPA
network problem analyzer (see page 18).

Detecting a missing neighborhood at a glance.

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 Numerous Data throughput measurement on a PC
The R&S®ROMES4DQA data quality analyzer makes it
possible to perform data tests using a commercially avail-

application tests able mobile device (mobile phone, data stick), where the
mobile device either acts as a modem or is connected via
NDIS. The test is evaluated on a PC. This ensures that the

(data throughput/ latest devices are always used for testing and enables fast
response to new technologies such as LTE carrier aggre-
gation. DQA jobs can be run in parallel so that users need

DQA) just a few mouse clicks to generate the high data loads
­required for LTE CA and start testing.

By appropriately linking parallel and sequential jobs,

Requirements the behavior of Internet users can be simulated.
❙❙ R&S®ROMES4 ­R&S®ROMES4DQA supports the following applications,
❙❙ R&S®ROMES4DQA/R&S®ROMES4SMP which can be combined in an individual job list: SMS,
❙❙ Test mobile phone email (POP3 and IMAP), ping, UDP, FTP, HTTP and video
❙❙ R&S®ROMES4GSM (GSM driver) or streaming.
R&S®ROMES4WCQ (Qualcomm driver)
❙❙ R&S®ROMES4LTQ (Qualcomm LTE driver) Innovative on-device testing with SwissQual
❙❙ R&S®ROMES4SAM (Samsung LTE/ smartphone
WCDMA/GSM driver) When used together with a suitable SwissQual ­QualiPoc
❙❙ Optional: ROMES4CA (carrier aggregation driver) Android phone, the R&S®ROMES4SMP smartphone
­option sends all of the messages and analyses directly to
the smartphone. This ensures an almost exact simulation
Creation of different application jobs of user behavior. R&S®ROMES4 GUI makes configura-
Mobile data calls are the standard today. It is therefore tion easy and convenient. Up to six wired devices can
essential that data services be optimized with respect be controlled in parallel. Depending on the device, voice
to quality and data throughput. This requires tools that quality analyses and VoLTE measurements can be per-
can be used to configure, display and evaluate the differ- formed in addition to data tests (incl. carrier a
­ ggregation).
ent data measurements and packet-switched services. R&S®ROMES4 includes the following jobs, which also
R&S®ROMES4 offers three different test solutions that can be assigned to a job list: email, ping, FTP, HTTP,
are based on differing test concepts. HTTP ­capacity test, ­Call2AnyNumber, double-ended voice
quality and MOC DL voice quality.

The SwissQual QualiPoc Android phone can also be used

as a standalone device, for instance for indoor measure-
ments. This increases the flexibility and saves costs, since
only one device is needed.

Innovative on-device testing with commercial

smartphone
On-device testing is also supported for unmodified com-
mercial or precommercial Android smartphones. This
­allows users to test data throughput on the device without
the limitation of a USB connection also for early devices,
when new features such as higher-order carrier aggrega-
tion or MIMO 4x4 are tested for the first time in the lab
or field. R&S®ROMES4DQA supports on-device testing in
ADB DQA mode for FTP, HTTP and capacity tests.

Output of KPIs and the most important network

parameters in a report
Automatic realtime analysis generates multiple reports
containing key benchmark data. ETSI KPIs are calculated
The DQA report of a drive test quickly reveals trouble spots. automatically.

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 Full overview of Requirements
❙❙ R&S®ROMES4
❙❙ Test mobile phone

layer 1 and layer 3 ❙❙ R&S®ROMES4GSM (GSM driver) or

R&S®ROMES4WCQ (Qualcomm driver) or
R&S®ROMES4SAM (Samsung LTE/
WCDMA/GSM driver) or
R&S®ROMES4LTQ (Qualcomm LTE driver) or
R&S®ROMES4TED (Sepura TETRA driver)

Display of mobile phone activities in layer 3

The basic functionality of R&S®ROMES4 in combination
with the drivers for test mobile phones provides a large
amount of information from layers 1 and 3. Users can see
the radio conditions (GSM or WCDMA, channel, voice
­codec, etc.) for phone calls at a glance.

If measurements are also taken by a scanner, the s­ canner's

measured data is displayed in the same window, allowing
a direct comparison.

Layer 3 View displays all the messages, sorted by up-

link and downlink. Each message is decoded and can be
opened if necessary.

Fast analysis of interrupted connections

In addition to protocol messages, interrupted/blocked and
Parallel jobs are configured with simple graphics. successful connections are also displayed. When jumping
to a trouble spot, all views will show measurements taken
at this point in time. This makes it considerably easier to
find the cause of a problem.

In addition, a filter function in Layer 3 View enables users

to evaluate only specific messages.

Layer 3 protocol messages for uplink and downlink. Overview of all important network parameters.

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 Test of voice quality Complete end-to-end measurement from the user
perspective
The measurements can be performed using a fixed‑­

– incl. VoLTE network station, usually a voice-quality server, or ­another

mobile phone. The mobile phone reflects the quality as
experienced by a mobile user and also permits HD voice
measurements. In contrast, a fixed-network station serves
Requirements as a reference, enabling the cause of a poor MOS to be
❙❙ R&S®ROMES4 found more quickly.
❙❙ R&S®ROMES4SMP
❙❙ QualiPoc Android QA test mobile phone Based on POLQA standard
❙❙ R&S®ROMES4WCQ (Qualcomm driver) The R&S®ROMES4SMP option and a suitable QualiPoc
❙❙ R&S®ROMES4LTQ (Qualcomm LTE driver) Android QA can be used to measure calls for the down-
❙❙ R&S®ROMES4SAM (Samsung LTE/ link and uplink. For the downlink, the server replays a
WCDMA/GSM driver) reference voice signal, and the QualiPoc Android QA
❙❙ Optional: R&S®ROMES4VO (VoLTE driver) ­connected to R&S®ROMES4 evaluates this received ­signal.
For the uplink, the R&S®ROMES4 test system replays a
voice s­ ignal and the server uses a POLQA algorithm to
User-friendly configuration for checking voice evaluate it.
quality
Mobile networks must meet increasingly high demands Following a drive test, the measured data can be merged
for quality. For testing voice quality, R&S®ROMES4 ­offers so that the uplink and downlink measurements are avail-
an innovative, full-featured, end-to-end solution that able in one log file. The merge process can be skipped if
­exactly simulates user behavior. two phones connected to R&S®ROMES4 call each other.

The test mobile phone is connected to the R&S®ROMES4

via USB and configured using a job list. A POLQA algo-
rithm (ITU-T P.863) evaluates the voice quality directly on
the phone. The results are displayed live in R&S®ROMES4.
The greater the difference between the transmitted voice
signal and the reference signal, the poorer the voice
­quality. This is indicated by the usual mean opinion score
(MOS) and can lie between 1 (poor) and 5 (very good).

Voice quality measurement (MOS) with the Samsung Galaxy S5.

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 LTE broadcast R&S®ROMES4 in combination with a
Rohde & Schwarz LTE scanner and an LTE eMBMS
test mobile

(eMBMS) network LTE broadcast, using the evolved multimedia broadcast

multicast service (eMBMS) feature of LTE, allows opera-
tors to more efficiently provide services to a large num-

optimization ber of subscribers. Instead of transmitting video and data

content separately to individual users, broadcast saves
network resources, making it attractive for areas such as
event venues where a multitude of subscribers request the
Requirements same type of content.
❙❙ R&S®ROMES4
❙❙ R&S®ROMES4T1W or Enabling broadcast in an LTE network poses challenges
R&S®ROMES4T1E for the network operator. It is necessary to ensure contin-
❙❙ R&S®TSMW scanner with ued high quality unicast services and simultaneously pro-
R&S®TSMW-K29 and R&S®TSMW-K32 or vide high-performance broadcast services. The broadcast
R&S®TSME scanner with network consists of a virtual single frequency network
R&S®TSME-K29 and R&S®TSME-K32 or (SFN) inside the LTE network, where a set of ­eNodeBs
R&S®TSMA scanner with that are part of the same broadcast area transmit the
R&S®TSMA-K29 and R&S®TSMA-K32 same downlink signal at the same time. This requires ac-
❙❙ Optional for test mobile support: curate ­eNodeB synchronization, which is typically not
R&S®ROMES4LTQ and R&S®ROMES4EMQ the case in LTE-FDD networks. In addition, intersymbol
inter­ference becomes important in the SFN. The eMBMS
­feature ­already makes use of the extended cyclic prefix,
but when planning and commissioning the broadcast net-
work it is crucial to validate that the network footprint at
the given operating frequency does not lead to intersym-
bol interference.

R&S®ROMES4 in combination with an LTE scanner, such

as R&S®TSMW, R&S®TSME or R&S®TSMA and an ­eMBMS
capable test mobile is the ideal solution for o
­ ptimizing
such a network.

Typical measurement setup with R&S®ROMES4, R&S®TSMA and eMBMS smartphone.

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 Network planning Check of network configuration
With the scanner, the LTE network can be baselined in The scanner decodes the SIB2 and SIB13 broadcast mes-
the planning phase, and the network synchronization can sages that include information on the eMBMS configura-
be checked against GPS. This allows the network planner tion in the network, such as MBSFN subframe configura-
to predict potential areas of intersymbol interference and tion from SIB2, and MCCH configuration per MBSFN area
­allows planning of the MBSFN area IDs, similar to PCI from SIB13. So in the field, the engineer can check that
planning in an LTE unicast network. the network is configured correctly.

Network rollout Validation of network performance

During the network rollout and tuning of the broadcast While the scanner allows optimization of the RF environ-
network, the scanner can measure the power (RSRP) and ment, it is also crucial to validate the network performance
quality (SINR) of each MBSFN area. The engineer can then with a test mobile. R&S®ROMES4 supports eMBMS test
check the validity of the network planning by comparing it mobiles with a Qualcomm chipset, so the engineer can
to the results from the field. test the connection to the eMBMS network, view layer 3
and flute messages, capture the IP trace, and therefore
Detection of intersymbol interference analyze problems in the broadcast network. While testing
The scanner can also be used to detect intersymbol inter­ eMBMS, it is important to continue testing the unicast ser-
ference. Due to the impulse response measurement vices (data and VoLTE) to ensure that ­service quality stays
per PCI, it can also detect which eNodeB is causing this at a high level when introducing the eMBMS feature.
interference, allowing the engineer to take corrective
measures.

R&S®ROMES4 eMBMS scanner view with ­intersymbol interference analysis.

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 LTE downlink ❙❙ Number of RNTIs (UEs) that have been scheduled data
by the eNodeB
❙❙ Modulation and coding scheme (MCS) and throughput

allocation for each detected UE

❙❙ Cell allocation

analyzer (DLAA) Information is provided per TTI and per resource block.

The data can be statistically evaluated to estimate the
overall cell load based on throughput and number of
­users. This information is important during network
Requirements ­optimization and troubleshooting as it helps users acquire
❙❙ R&S®ROMES4 ­network data without special maintenance tools such as
❙❙ R&S®ROMES4T1W or base station counters.
R&S®ROMES4T1E
❙❙ R&S®TSMW scanner with Variety of applications
R&S®TSMW-K29 and R&S®TSMW-K31 or The LTE downlink allocation analysis result, for example,
R&S®TSME scanner with can explain the limited throughput of a test mobile phone
R&S®TSME-K29 and R&S®TSME-K31 or if the scanner shows that the cell load is already high and
R&S®TSMA scanner with therefore not enough resources are available for the test
R&S®TSMA-K29 and R&S®TSME-K31 mobile phone.
❙❙ Optional: R&S®TSMW-K27/R&S®TSME-K27/
R&S®TSMA-K27 RF power scan In a benchmarking environment, this feature provides
deep insight into networks, allowing comparison of traffic
and available capacity between different operators.
Allocation analysis of the strongest eNodeB in
the downlink Another application is as a network probe to measure
In combination with the R&S®TSMW, R&S®TSME or the cell load in a stationary situation, for example when a
­R&S®TSMA ­scanner, R&S®ROMES4 offers a unique feature base station site owner wants to know the importance of
that a­ llows analysis of the DL allocations of the strongest a ­certain base station before renewing the lease with the
­eNodeB during measurement. The following information is network operator.
included:

Fast overview of resource block allocation, average MCS, and target throughput of different RNTIs.

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 Parallel spectrum Marker functions make it easy to precisely measure
­dedicated frequencies and detect changes. A marker can
also be defined as a reference and compared against the

measurement maximum value.

Detection of broadband interferers, neighborhood

interference and uplink activities
Requirements The waterfall diagram gives the user a general idea of
❙❙ R&S®ROMES4 the air interface and its history. This makes it very easy
❙❙ R&S®ROMES4T1Q or to ­locate broadband interferers or external interference.
R&S®ROMES4T1W or All the user needs to do is move the mouse pointer over
R&S®ROMES4T1E the waterfall diagram. At any desired spot, timestamp
❙❙ R&S®TSMx scanner with and ­frequency are displayed, enabling the user to find the
R&S®TSMU-K17 RF power scan ­center frequency of an unknown signal faster.
❙❙ R&S®TSMx scanner with
R&S®TSMW-K27 RF power scan The spectrum function is based on FFT analysis. Various
❙❙ R&S®TSME scanner with FFT sizes allow users to set measurement bandwidths
R&S®TSME-K27 RF power scan down to min. 140 Hz. The smaller the measurement band-
❙❙ R&S®TSMA scanner with width, the greater the measurement accuracy. This per-
R&S®TSMA-K27 RF power scan mits a very fast spectrum measurement without the usual
sweep time of a normal spectrum analyzer. Fast measure-
ments are especially important during drive tests in order
Broadband spectrum measurement to obtain a sufficiently high density of results during the
In combination with an R&S®TSML-CW, R&S®TSMW, drive.
R&S®TSME or R&S®TSMA scanner, R&S®ROMES4 can
be used to perform a spectrum scan. The user can se- A special threshold value is provided for monitoring the
lect up to 32 frequency ranges from 80 MHz to 3 GHz spectrum. Spectra that do not show any test points above
(R&S®TSMW: 30 MHz to 6 GHz; R&S®TSME/R&S®TSMA: this threshold value are not displayed. Any data that is not
350 MHz to 4.4 GHz). The frequency range is not limited. of interest is not recorded.
R&S®ROMES4 offers different display options, e.g. enve-
lope spectrum measurement, RMS, peak or a predefined Frequency markers and the entire spectrum can be
channel mask. In this case, the power per channel is ­exported to ASCII format.
displayed.

Spectrum measurement

Five user-selectable frequency ranges for spectrum measurements

Zoom display of one of the five ranges

(here the first range "0" from 80 MHz to 2.5 GHz)

Waterfall display of selected range

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 Location estimation Creation of a base station list during a drive test
The R&S®TSMW, R&S®TSME and R&S®TSMA scanners
enable users to estimate the geographic position of base

of 2G/3G and 4G stations. This can even be done for GSM, WCDMA,
CDMA2000® 1xEV-DO and LTE base stations in parallel.

base stations Requires only scanners and GPS

For the calculation algorithm, all that is needed are the
measurement parameters from a highly accurate GPS
receiver with output of the PPS time reference sig-
Requirements nal (­pre‑installed in the R&S®TSMW, R&S®TSME and
❙❙ R&S®ROMES4 ­R&S®TSMA) and from the 2G/3G/4G scanner.
❙❙ R&S®ROMES4LOC
❙❙ R&S®ROMES4T1W or The R&S®ROMES4 software and the R&S®ROMES4LOC
❙❙ R&S®ROMES4T1E driver allow the scanners not only to detect the main levels
❙❙ R&S®TSMW scanner or of the BTS (2G: RxLev, 3G: RSCP, 4G: RSRP) but also to
R&S®TSME scanner or demodulate the broadcast channels (BCH). Important time
R&S®TSMA scanner information as well as details of the transmitting BTS are
thus obtained.

The maximum likelihood method is used to calculate the

geographic position of the individual BTS from the mea-
sured data provided by the GPS receiver, BCH time infor-
mation and level changes during the drive test.

Following the drive test, the calculation results are

­exported to a base station list and the located base
­stations are displayed on an underlying street map.

Selecting the BTS opens another window in which the

characteristic data of the BTS is displayed.

The calculated position of a BTS lies within an error ellipse

(approx. 200 m) that is also exported. Base stations can be
filtered based on the accuracy of location estimation.

Results of the measured g

­ eographic position of
base stations using the R&S®ROMES4 software
and the R&S®ROMES4LOC driver.

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 Indoor Stationary or moving measurements indoors –
without GPS signal
High-quality wireless communications coverage inside

measurements buildings, e.g. at airports, shopping malls and exhibition

halls, is gaining in significance, especially with respect
to data traffic. Since GPS reception indoors is limited or
­nonexistent, R&S®ROMES4 offers an alternative to con-
Requirements ventional navigation display (GPS data on a map).
❙❙ R&S®ROMES4
❙❙ R&S®ROMES4IND Combined indoor/outdoor measurements
❙❙ Test mobile phone and/or scanner The R&S®ROMES4IND indoor driver option provides a sep-
❙❙ R&S®ROMES4WCQ (Qualcomm driver) or arate means of navigation that makes it possible to display
R&S®ROMES4SAM (Samsung LTE/ positions on a floor plan. Measurements can be taken at
WCDMA/GSM driver) or specific points (hot spots, e.g. in conference rooms) or
R&S®ROMES4LTQ (Qualcomm LTE driver) or along a specific path (continuous, e.g. in a corridor). Com-
R&S®ROMES4TEP or R&S®ROMES4TED bined DUTs (comprising buildings and outdoor areas such
(TETRA driver) as company premises) can be optimally measured and
georeferenced. The software also displays a smooth tran-
sition to areas covered by GPS. Measurements of multi-
floor buildings are easily handled by displaying the various
floors as multiple layers on the map. The wide support
of georeferenced and non-georeferenced map formats
(tab, jpg, tif, bmp, png) and included import functionalities
for iBwave ibwc and AutoCAD DXF files simplifies and
speeds up daily work. The layer that corresponds to the
floor where the user is located is visible on the map. The
complete integration of the indoor functionality into the
R&S®ROMES4 map display allows intuitive operation.

Display of a floor plan in

hot spot mode.

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 GSM interference Automatic measurement and identification of
interferers from own GSM mobile network
R&S®ROMES4 allows GSM interference to be determined

analysis with automatically and clearly from the own GSM network
during the drive test. The actual interferers can be dis-
played on the underlying street map in Route Track View.

automatic interferer This makes it considerably easier to use the software and
perform tests, reducing costs dramatically in comparison
with conventional methods.

identification The evaluation is performed in three steps:

❙❙ Automatic detection of an interference situation (type,
length, location)
Requirements ❙❙ Automatic analysis of the detected interference (test on
❙❙ R&S®ROMES4 BCCH and TCH)
❙❙ R&S®ROMES4COI ❙❙ Classification of the actual interferers on the basis of the
❙❙ R&S®ROMES4T1Q or individual interference situation and pinpointing of the
R&S®ROMES4T1W or interferers on the street map (interfering base station
R&S®ROMES4T1E with channel indication: BCCH, TCH, adjacent channel)
❙❙ R&S®TSMx GSM scanner
❙❙ Test mobile phone
❙❙ R&S®ROMES4GSM (GSM driver) or
R&S®ROMES4WCQ (Qualcomm driver) or
R&S®ROMES4SAM (Samsung LTE/
WCDMA/GSM driver)

GSM interference analysis with automatic interferer identification – display on the map

The map shows the position of the interference (cross line), the cell currently providing coverage (S) and the four actually interfering cells
(I1, I2, I3 and I4). The markings N1 to N6 show the current neighboring cells. The color of the route indicates the received signal strength
of the GSM mobile phone.

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 To optimize interference analysis, more than just selectable Detection of adjacent-channel and co-channel
trigger thresholds (e.g. RxLevFull, RxLevSub, ­RxQualFull, interferers
RxQualSub, FER) are used. Some of the test mobile The combination of scanner and test mobile phone can
phones supported by R&S®ROMES4 also provide a C/I even be used to measure the power in the time slots being
­value for the traffic channels being used (TCH). Because used (TCH, TS Time Slot), making it possible to identify not
the SIM connection only allows the test mobile phone only interfering BCCH channels but also TCH interferers.
to see the data from the allocated mobile network, and
because it is not very RF‑sensitive, the use of high-grade
scanners is absolutely essential.

Evaluation of BCCH and TCH channels allows

full‑featured analysis
The R&S®TSMW, R&S®TSME, R&S®TSMA and
R&S®TSML‑CW scanners are able to instantly detect all
­selected RF channels (BCCH) and demodulate the BCH
information. As a result, all the data from the BTS trans-
mitting the signals is available. This is especially relevant
when performing measurements in the vicinity of national
borders (faulty frequency allocation, roaming, etc.).

GSM interference analysis with automatic interferer identification – detailed display

Eight interference situations were detected during the drive (bottom window). The interference marked on the map was 17.7 s in d­ uration
and extended over a distance of 75.8 m. The BCCH of the cell providing coverage is channel 38; the interference occurred on TCH 45.

The upper part of the screen shows the scanner measurements from channel 45 of the cell providing coverage (green) as well as the
­measurement of the interferers (red). The list shows the individual interferers together with the measured signal strength, the identification
of the cell and its distance to the location of the interference.

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 R&S®ROMES4NPA: Automatic detection, analysis and documentation
of trouble spots
The sheer volume of recorded data makes ­individual and

analysis and manual analysis impossible. The data (from R&S®ROMES4

or QP files, after conversion in the latter case) is therefore
­automatically analyzed by the R&S®ROMES4NPA net-

evaluation of work problem a ­ nalyzer, which outputs a list of all detected

­trouble spots and ­displays them on a map using ­Google
Maps, ­OpenStreetMap (OSM) or user-defined maps.

network problems R&S®ROMES4NPA also ­provides information about the

cause of the problem.

Sophisticated algorithms for supporting users

Requirements The easy-to-use interface guides the user through the
❙❙ R&S®ROMES4NPA (included in R&S®ROMES4 or as process, from reading in the measured data (from one
standalone) or more drive tests) and selecting the analysis criteria to
❙❙ R&S®ROMES4N11 ­retrieving the automatically generated list of trouble spots.
❙❙ R&S®ROMES4N15
❙❙ R&S®ROMES4N17 Right-clicking a problem automatically opens
❙❙ R&S®ROMES4N18 R&S®ROMES4 and positions the replay of the measure-
❙❙ R&S®ROMES4N19 ment file just ahead of the trouble spot in question so that
❙❙ R&S®ROMES4N20 the user can perform a detailed check if required. The
❙❙ R&S®ROMES4N21 ­result is displayed in HTML in a clear report that is ready
❙❙ R&S®ROMES4N22 for printing. Export to Excel allows easy data processing.
❙❙ R&S®ROMES4N30
❙❙ R&S®ROMES4N31 The measurement data is analyzed according to specific
criteria that depend on the modules selected. In all mod-
ules, the analysis criteria can be adapted to user-specific
limit values and settings.

The R&S®ROMES4NPA base package includes the follow-

ing modules:
❙❙ NQA (network quality analyzer) for voice calls, base
module including KPIs
❙❙ DQA (data quality analyzer) for PS data connections,
base module including KPIs

Start screen of R&S®ROMES4NPA.

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 Broad range of optional add-on modules for voice R&S®ROMES4N17
quality and data tests as well as coverage and Neighborhood analysis module for automatic
neighborhood analysis classification of neighborhood relationships into one
R&S®ROMES4N11 of the following categories
NQA for GSM/WCDMA/TETRA voice calls, expansion ❙❙ (Potentially) missing neighbor: a cell with high signal
for problem spot detection strength and good quality (both thresholds can be set)
This module enables analysis of voice calls for network has been measured but is not contained in the currently
problems, which can be selected from more than 140 dif- defined neighbors
ferent problem categories, and delivers a list of the prob- ❙❙ Unused neighbor: a cell is configured as neighbor but
lem spots including the type and cause of problem. has not been detected during measurement
❙❙ Approved neighbor: a cell has been classified as a
R&S®ROMES4N15 (potentially) missing neighbor and is contained in
Coverage module with display of coverage data on a the neighbor list. Analysis of intra‑RAT handover in
raster map the network problem analyzer (NPA) is available for
Coverage data (GSM, WCDMA, CDMA2000® 1xEV-DO, GSM, UMTS, LTE and TETRA. Inter-RAT handovers are
TETRA or LTE) measured with Rohde & Schwarz scanners currently limited to GSM and UMTS, but will soon be
is rasterized and displayed on the map using Google Maps available for LTE as well.
or OpenStreetMap (OSM). This makes it easy to gener-
ate coverage plots. Optimizations can be checked using a R&S®ROMES4N18
­before-and-after comparison. Spectrum analysis module for automatic detection
of strong transmitters in a spectrum thought to
be empty
❙❙ Easy verification that a purchased spectrum is clear and
that no other emitter still occupies part of that band
❙❙ Fast confirmation that part of a spectrum can be used for
refarming purposes
❙❙ Reliable observation of power scan measurements,
similar to a spectrum analyzer
❙❙ Automated and configurable (bandwidth, duration,
power) analysis from potential narrowband and wideband
interferers
❙❙ Detailed analysis by drilling down to the corresponding
measurement file

Initial overview of scanner

­measurement content.

Display of all neighbors of a cell.

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 R&S®ROMES4N19 R&S®ROMES4N22
BTS evaluation – summary of key BTS parameters as VoLTE analysis
acceptance criterion LTE is also increasingly used for voice transmission. IP-
To ensure a consistently high degree of network quality, based telephony via VoLTE places higher demands on
continuous improvements must be made to the mobile network quality because users have less tolerance for
network, such as updating the parameters for a mobile poor voice call quality, such as dropped calls, than they
base station, replacing hardware or adding new base do for data calls. This module automatically analyzes SIP
­stations. Each time such improvements are made, the and ­layer 3 messages as well as call setup KPIs and spots
­effects on neighboring base stations as well as the mobile problems if there are timing issues at the SIP level.
network as a whole must be documented and ­evaluated.
The BTS evaluation on the NPA performs these tasks R&S®ROMES4N30
­reliably, fast and cost-effectively. Delta and comparative analysis of R&S®ROMES4
measurement data
R&S®ROMES4N20 This add-on module enables a quick comparison of mea-
Data module for EDGE, HSPA+ and LTE data links surement data, for example for visualizing the effects of
including problem spot detection an implemented network optimization. Measurement data
This module offers specific analysis of high-speed data from different cells, UEs or operators can also be com-
links for achievable data rates and analysis of potential pared for benchmarking.
problems as well as an IP data analyzer for analyzing
IP-based data traffic and associated problems. When IP- R&S®ROMES4N31
based data services are used, e.g. web browsing or email, LTE MIMO and downlink allocation analyzer
this module analyzes the results and shows problem spots LTE MIMO analysis is performed based on the condition
and their cause. A comprehensive collection of different number (CN) and rank indicator (RI) values measured
analyses is available especially for LTE. by the scanner. If mobile device data is available for the
­analysis, the efficiency per Hz or resource block is also
R&S®ROMES4N21 ­included in the analysis. Any inconsistencies in the con-
Carrier aggregation analysis dition number, efficiency per resource block or condition
As the use of data is increasing exponentially, mobile net- number ­matrix are displayed as problem spots on the map
works need to provide higher-speed data links to their cus- and designated in tables.
tomers. When carrier aggregation is used to provide this
capability, this module analyzes the results and shows de- The result analysis from the downlink allocation ­analyzer
tailed information such as how many carriers are assigned lists the cell throughput per TTI and operator as well as
to a mobile phone and its downlink and uplink through- maximum and average cell throughput in a table and
puts. It also provides statistics (RSRP, RSRQ, etc.) for each graphically.
carrier as well for investigation purposes.

Display of the cells providing

coverage on the map.

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 Comprehensive set of reporting functions Automated analysis with R&S®ROMES4NPA considerably
If multiple drive tests are selected, the user can draw saves time and reduces costs. Optimizing the results no
­statistical conclusions about quality in the measured areas. longer requires time-consuming manual checks and analy-
A comparison between various network operators in the sis of data that may not even contain any problems.
same area is also possible (benchmarking).
R&S®ROMES4NPA uses sophisticated algorithms to help
A further way to evaluate analysis results in greater detail users find problem causes. More in-depth analyses can
is to use sophisticated filter algorithms (e.g. for examining be performed at any time. A large amount of measured
only one operator/one cell or only specific times or days of data can be automatically and quickly processed; reports –
the week). The dynamic context filter algorithm makes this for management and for general documentation – are
even easier and faster. For analyzing dedicated geograph- ­generated without requiring user interaction.
ical areas, polygon filters can easily be drawn on the map.
The result analysis and statistics are automatically tuned to
the active filters.

LTE handover analysis: map, KPIs

and detailed listing.

LTE neighborhood analysis: map, list of the

­actual, possible and u
­ nused neighbors of
­several cells.

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 System Maximum flexibility and future readiness
Flexible measurement configuration
The backpack can accommodate scanners, smartphones,

configuration for TETRA mobile and a compact PC to support a wide variety

of measurement tasks.

different application Multidevice ready

The smart fixation system is compatible with different
smartphone designs and ensures convenient integration of

scenarios future smartphone models.

Multi-usage
The smartphones are easily removed and can also be used
R&S®MNT-CORE2 as QualiPoc handheld measurement devices.
R&S®MNT-CORE2 is a ruggedized, flexible and future-­
ready hardware concept that best demonstrates its Reliable functionality for uninterrupted
­exclusive benefits, its endurance and performance, and its data collection
unique flexibility in practice. Its key hardware features and Active cooling
benefits include: Two fans provide effective cooling and airflow, ensuring
uninterrupted and reliable performance of all embedded
A well thought-out product design system components.
Practical design
The compact and comfortable backpack has an inconspic- Smart power management
uous design and is ideal for walk tests in public areas. A strong power supply consisting of four powerful and
hot swappable batteries ensures autonomy of up to
Lightweight and adjustable construction eight hours.
The fully configurable backpack, including four batteries,
weighs less than 9 kg. The carrying straps can be individu- R&S®ROMES4 configurations
ally adjusted to offer best wearing comfort. R&S®ROMES4 and the connected measuring equipment
(test mobile phones, R&S®TSMx scanners, etc.) can also
be used and delivered in the following configurations on
request:
❙❙ User-specific cabling/configured by customer
❙❙ As a test suitcase
❙❙ As a turnkey test vehicle

R&S®MNT-CORE2 backpack. User-specific cabling.

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 R&S®MNT-CORE2 specifications
Power rating
Input voltage range 16 V to 19 V DC
Input power max. 200 W
Input current max. 10.5 A
Autonomy typ. 7.5 h
Charging time (four batteries) QualiPoc Freerider FR3-OPS approx. 3.5 h/100 %
QualiPoc Freerider FR3-VPS approx. 6 h/85 %
QualiPoc Freerider FR3-OBMC approx. 5 h/100 %
Environmental conditions
Operating temperature range max. temperature limited by assembled d
­ evices –10 °C to +50 °C, system start higher than 0 °C
(for R&S®TSMA/R&S®TSME max. +40 °C); for
smartphones cf. specifications
Damp heat +25 °C/+40 °C, 95 % rel. humidity, cyclic,
in line with EN 60068-2-30
Rain protection IPx3 in line with EN 60529:1991 + A1:2000
Mechanical resistance
Shock 30 g/6 ms,
in line with IEC/EN 60068-2-27
Bumps 15 g/6 ms,
in line with IEC/EN 60068-2-27
Vibration PSD = 2 m2/s3 at f = 4 Hz to 40 Hz,
–6 dB/oct at f > 40 Hz,
in line with IEC/EN 60068-2-64
Drop test free fall h = 10 cm,
in line with IEC 60068-2-32
drop and topple h = 10 cm,
in line with IEC 60068-2-31
Conformity
Electromagnetic compatibility EU in line with ETSI EN 301 489-1,
ETSI EN 301 489-7 V1.3.1,
ETSI EN 301 489-24 V1.5.1
Electrical safety EU in line with EN 61010-1:2010
General data
Dimensions W×H×D 287 mm × 542 mm × 140 mm
(11.3 in × 21.3 in × 5.5 in)
Weight R&S®MNT-CORE2 backpack system 3.9 kg (8.6 lb) + 1.5 kg (3.3 lb) for the backpack
itself
fully equipped (four mobile devices, R&S®TSMA, 8.2 kg (18.1 lb)
R&S®TSME)
R&S®MNT-BP89WH battery 0.45 kg (1 lb)

Test suitcase. Turnkey test vehicle.

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 System components

R&S®TSML-CW driver
Qualcomm LTE driver
Qualcomm GSM and

Samsung LTE driver

R&S®TSMW driver
TETRA TED driver

R&S®TSMA driver
TETRA TEP driver

R&S®TSME driver
1xEV-DO driver
UMTS driver

CDMA2000®
Technology

GSM driver

Qualcomm
GSM/GPRS • • • • •
EDGE • • • • •
WCDMA Rel. 99 • • • •
HSPA+ • • • •
CDMA2000® 1xEV-DO • • • •
WiMAX™ IEEE 802.16e • •
LTE • • •
Spectrum • • •
CW power •
TETRA • • •

A list of test mobile phones supported by R&S®ROMES4 is available separately.

System requirements
Recommended:
❙❙ Intel Core i7
❙❙ 8 Gbyte RAM for Windows 7, 64 bit
❙❙ 255 Gbyte SSD
❙❙ DVD ROM drive
❙❙ USB 2.0 and LAN ports
❙❙ 15" monitor with a resolution of 1024 × 768 pixel
❙❙ Microsoft Windows 7, 64 bit

Recommended notebook
❙❙ Dell Latitude E6540 (or newer)

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 Application: TETRA In the downlink, measurements performed using the
R&S®TSMW in the D-CT and D-CTT operating modes
­include the following:
❙❙ 100 MHz to 1000 MHz frequency range, with parallel
Requirements measurements of all channels in a 10 MHz block
❙❙ R&S®TSMW drive test scanner ❙❙ 25 kHz channel resolution (with QPSK)
❙❙ R&S®TSMW-K26 TETRA option for R&S®TSMW ❙❙ Automatic detection of the broadcast synchronization
❙❙ R&S®ROMES4 channel (BSCH)
❙❙ R&S®ROMES4T1W ❙❙ Up to 20 Hz measurement rate for carrier measurements
❙❙ R&S®ROMES4TED of up to 2 × 600 channels simultaneously (10 MHz block,
❙❙ R&S®ROMES4TEP QPSK) with:
■■ Channel number and frequency

■■ Power of each base station

■■ MCC, MNC, TN, FN, MFN

R&S®ROMES4 is the software platform for measurements
■■ BER before Viterbi
on the TETRA air interface. Statistics, analyses, trouble-
■■ AACH BER
shooting for coverage, quality of service and handover
■■ Frequency error and phase error
­behavior give network operators a complete overview of
■■ SNR
the network state and help them maintain it in the best
■■ Delay spread
possible state.
■■ In-band spectrum

■■ Constellation diagram
The R&S®TSMW scanner, TETRA radios and other acces-
■■ BCH demodulation, incl. decoding of neighboring cells
sories are controlled by R&S®ROMES4. For such tasks, the
■■ Measurement of co-channel interference
following capabilities are indispensable:
■■ Channel impulse response (channel sounder)
❙❙ Mobility and speed – use in vehicles, helicopters and on
foot
❙❙ Highly accurate coverage measurements on TETRA The R&S®ROMES4TEP software option controls Sepura,
networks using a passive RF scanner EADS and Motorola radios via the standardized PEI inter-
❙❙ Spectrum analysis for identifying interferers face to control calls and transfer data in order to ­emulate
❙❙ Measurement and identification of TETRA base stations user behavior in the network and provide additional status
❙❙ Subsequent problem analysis – uncovers problems in information. The R&S®ROMES4TED software option works
the TETRA network and analyzes them based on the test with Sepura radios and provides Layer 3 information for
data obtained with R&S®ROMES4 calculating KPIs of QoS measurements, ­including hando-
ver and neighborhood analysis.

The R&S®ROMES4NPA network problem ­analyzer

completely supports analysis of TETRA QoS using
R&S®ROMES4N11 and R&S®ROMES4N15 for coverage
and interference and R&S®ROMES4N17 for handover and
neighborhoods.

The TETRA spectrum scan displays all channels in a 10 MHz band.

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 Application: LTE multipath propagation, handover failures or even weak
network coverage might be the cause of error.

In addition to measuring data throughput, measure-

Requirements ment data of layer 1 and layer 3 messages is recorded.
❙❙ R&S®ROMES4 ­Qualcomm or Samsung chipset-based LTE mobile phones
❙❙ R&S®ROMES4DQA or data sticks display detailed information about individual
❙❙ R&S®ROMES4SAM (Samsung LTE/ data packages so that often a quick glance is enough to
WCDMA/GSM driver) detect possible causes of error.
❙❙ R&S®ROMES4LTQ (Qualcomm LTE driver)
❙❙ R&S®ROMES4T1W or VoLTE measurements
R&S®ROMES4T1E (scanner driver) LTE is also increasingly used for voice transmission. IP-
❙❙ R&S®TSMW scanner or based telephony via VoLTE places higher demands on
R&S®TSME scanner or network quality because users have less tolerance for poor
R&S®TSMA voice call quality, such as dropped calls, than they do for
data calls. In addition to the normal chipset trace data,
R&S®ROMES4 also supports output of the SIP signaling
Coverage analysis with Rohde & Schwarz scanners used for VoLTE. This makes it possible to collect voice KPIs
This essential analysis determines whether an LTE sig- for VoLTE and identify the cause of errors.
nal of sufficient strength is available at the test site.
R&S®ROMES4 and TopN View can be used to clearly Interference analysis
display the results and plot them on a map. For signal LTE is a single frequency network (SFN) that is identified
strength, the R&S®TSMW, R&S®TSME and R&S®TSMA by a reuse factor of 1. This means that neighboring cells
scanners deliver the RSRP value or the power of the use the same frequency ranges. Interference is therefore
P-SYNC/S-SYNC signals. In addition to signal strength, especially frequent and must be analyzed to avoid capac-
the reference signal received quality (RSRQ) and the sig- ity losses to the greatest possible extent. This is a special
nal to interference-plus-noise ratio (RS-SINR) for each cell challenge for T&M equipment because the interference
as well as the SINR for the SYNC signals are displayed. can also affect the T&M equipment itself. The R&S®TSMW
If one of these values is too low, this indicates interfer- was developed specially for this task and features an im-
ence, intermodulation or other types of disturbance. In pressive C/I value of –20 dB. Even signals that are 20 dB
this case, the R&S®TSMW/R&S®TSME/R&S®TSMA and weaker than the strongest noise can be measured, making
R&S®ROMES4 offer a more detailed cause analysis. it possible to identify interferers and reduce interference.
The R&S®TSMW can also distinguish between signals that
Data throughput measurements with the LTE test have the same physical cell ID but come from different
mobile phone eNodeBs. It makes no difference whether the measure-
R&S®ROMES4 collects scanner data and measurement ment is performed in the FDD mode or in the TDD mode.
data from the Qualcomm or Samsung LTE test mobile
phone. One of the most important parameters is data
throughput. If it is too low, the cause may be a low-order
modulation format such as QPSK or the use of SISO rather
than MIMO. A comparison with the scanner data permits
further conclusions about possible causes. Interference,

TopN View shows eNodeBs signals sorted by strength. Display of measurement data from a Qualcomm chipset-based
LTE data stick.

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 Cyclic prefix analysis Subband measurements
A special feature of the Rohde & Schwarz LTE drive test The LTE wireless communications standard permits chan-
solution based on the R&S®TSMW, R&S®TSME and nel bandwidths of 1.4 MHz to 20 GHz. While the synchro-
R&S®TSMA is the channel impulse response (CIR) mea- nization and broadcast information is contained within a
surement. This ­involves a channel measurement per- bandwidth of approximately 1 MHz in the center of the
formed over a period of time. R&S®ROMES4 displays the LTE carrier, useful data is transmitted over the entire band-
multipath propagation of the signals – also referred to as width. Narrowband interference outside the center of the
echos – in a power vs. time diagram. As an OFDM stan- carrier can be detected through subband measurements
dard, LTE has a defined frame length and a fixed guard performed on the LTE scanner. The SINR of the reference
interval, also ­referred to as a cyclic prefix. This value is signals is determined for every resource block (12 subcar-
necessary in o ­ rder to wait for echos in the receiver. A cy- riers corresponding to 180 kHz). R&S®ROMES4 graphically
clic prefix that is too short or an echo that is too long can displays these values in a waterfall diagram. Interferers are
cause problems in the subsequent frames. This is referred visible as vertical lines in the diagram.
to as inter­symbol ­interference (ISI). The effect manifests
itself in a low SINR. R&S®ROMES4 can measure the length MIMO measurements
of the cyclic prefix and match it against the multipath MIMO plays an essential role in achieving high data rates
propagation. This enables the user to draw a conclusion in LTE networks. Ideally, using MIMO 2x2 will double the
about how ­often multipath propagation disturbs the sub- data rate and MIMO 4x4 will quadruple the data rate.
sequent ­symbol, whether a longer cyclic prefix would be Whether this is possible in each specific case depends on
better and ­whether the network needs to be optimized, the characteristics of the radio channel. The characteristics
e.g. by ­adding eNodeBs. can be measured using the R&S®TSMW for MIMO 2x2 or
a set of R&S®TSME for MIMO 2x2 and 4x4 together with
Demodulation of eNodeB broadcast information the R&S®TSMW-K30 MIMO option. The scanner receives
The R&S®TSMW, R&S®TSME and R&S®TSMA can scan LTE the eNodeB reference signals from all transmit antennas
signals and also demodulate broadcast signals. The broad- at its independent frontends. These signals are then used
cast information from previously detected eNodeBs is de- to determine the transmission matrix for the radio chan-
modulated (MIB and SIBs) to learn more about the base nel and the condition number. The condition number de-
station. Based on this information, the user knows the scribes how successfully MIMO can be used. If the condi-
country, the network and the cell from which the received tion number is low, the radio channel is suited for MIMO.
signal originates. Neighborhood relationships (intra-RAT The MIMO and SINR measurements can be used to ex-
and ­inter-RAT) and handover thresholds are also visible. plain the data rates achieved with the test mobile phone.
All these values make it easier to classify the signals and
­detect problem spots.

CIR View shows the channel impulse response (CIR) and all parts of the Decoding of the LTE BCH information by the R&S®TSMW LTE scanner.
multipath propagation (echos) together with a cell's cyclic prefix.

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 Ordering information
Designation Type Order No.
R&S®ROMES4 Drive Test Software
Platform for measurement and replay R&S®ROMES4 1117.6885.04
Software replay version R&S®ROMES4REP 1117.6885.34
Software maintenance contract and single software update
Software maintenance contract for one year R&S®ROMES4UPC 1510.8140.02
One-time software update within the R&S®ROMES4 generation R&S®ROMES4UPS 1510.8140.03
One-time software update from the previous R&S®ROMES generation R&S®ROMES4UPG 1510.8140.04
Scanner and receiver drivers
R&S®TSMW R&S®ROMES4T1W 1117.6885.02
R&S®TSME and R&S®TSMA R&S®ROMES4T1E 1117.6885.82
CW option for R&S®ROMES and Rohde & Schwarz receivers R&S®ROMES4CW 1117.6885.08
Test mobile phone/data card drivers
GSM R&S®ROMES4GSM 1117.6885.20
Qualcomm (incl. HSDPA/HSUPA) R&S®ROMES4WCQ 1117.6885.48
C2K Qualcomm CDMA2000® 1xEV-DO R&S®ROMES4C2K 1117.6885.06
WLAN Windows R&S®ROMES4WF2 1522.8211.02
Qualcomm LTE R&S®ROMES4LTQ 1117.6885.64
Samsung LTE/WCDMA/GSM R&S®ROMES4SAM 1529.8100.02
Qualcomm eMBMS R&S®ROMES4EMQ 1527.2034.02
LTE Carrier Aggregation R&S®ROMES4CA 1117.6885.90
VoLTE R&S®ROMES4VO 1522.8186.02
TETRA Radio Drivers (PEI) from Sepura incl. L3 R&S®ROMES4TET 1506.9930.02
QualiPoc test mobile support
QualiPoc Qualcomm single phone support R&S®ROMES4QPQ1 1529.8000.41
QualiPoc Qualcomm dual phone support R&S®ROMES4QPQ2 1529.8000.42
QualiPoc Qualcomm single to dual phone support upgrade R&S®ROMES4QPQU 1529.8000.45
QualiPoc Qualcomm single to maximum phone support upgrade R&S®ROMES4QQ1A 1529.8000.46
QualiPoc Qualcomm dual to maximum phone support upgrade R&S®ROMES4QQ2A 1529.8000.47
QualiPoc Samsung single phone support R&S®ROMES4QPS1 1506.9975.41
QualiPoc Samsung dual phone support R&S®ROMES4QPS2 1506.9975.42
QualiPoc Samsung single to dual phone support upgrade R&S®ROMES4QPSU 1506.9975.45
Special measurements and options
Automatic Channel Detection R&S®ROMES4ACD 1506.9869.03
GSM Interference R&S®ROMES4COI 1117.6885.56
Position Estimation R&S®ROMES4LOC 1117.6885.32
Data Quality Analyzer for Quality-of-Service Measurements (DQA) R&S®ROMES4DQA 1117.6885.16
Smartphone Use of Specified UEs R&S®ROMES4SMP 1519.6586.02
KPI Enhancement: generation and measurement of user-specific KPIs R&S®ROMES4KPI 1117.6885.66
Handover/Neighborhood Analysis for 3GPP (HOA/NBA 3GPP) R&S®ROMES4HOA 1117.6885.22
Indoor R&S®ROMES4IND 1117.6885.24
360 Degree Panorama Measurement with R&S®HE300 R&S®ROMES4PAN 1117.6885.78
Remote Control of Scanner measurements R&S®ROMES4RCO 1506.9917.02
Printed Manual R&S®ROMES4DOC 1117.6885.14

28

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 Designation Type Order No.
Network Problem Analyzer (NPA)
Network Problem Analyzer, base package R&S®ROMES4NPA 1510.9276.02
NPA Extended NQA Plugin R&S®ROMES4N11 1510.9299.11
Coverage Plugin R&S®ROMES4N15 1510.9424.02
Neighborhood Analysis Plugin R&S®ROMES4N17 1510.9299.17
Spectrum Analysis Plugin R&S®ROMES4N18 1117.6885.74
BTS Evaluation R&S®ROMES4N19 1522.8940.02
2G/3G/4G Data Plugin R&S®ROMES4N20 1510.9299.20
Carrier Aggregation Analysis Plugin R&S®ROMES4N21 1521.5360.02
VoLTE Analysis Plugin R&S®ROMES4N22 1521.5377.02
Delta and Comparative Analysis Plugin R&S®ROMES4N30 1510.9299.30
LTE MIMO and Downlink Allocation Analyzer R&S®ROMES4N31 1510.9299.31

Your local Rohde & Schwarz expert will help you find the optimum solution for your requirements.
To find your nearest Rohde & Schwarz representative, visit
www.sales.rohde-schwarz.com

CDMA2000® is a registered trademark of the Telecommunications Industry Association (TIA - USA).

WiMAX Forum is a registered trademark of the WiMAX Forum. WiMAX, the WiMAX Forum logo, WiMAX Forum Certified, and the WiMAX Forum Certified logo are
­trademarks of the WiMAX Forum.

Rohde & Schwarz R&S®ROMES4 Drive Test Software 29

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 Related products
Mobile network scanners
R&S®TSMA
❙ Multiband support from The compact R&S®TSMA autonomous mobile
Autonomous mobile
350 MHz to 4.4 GHz network scanner offers all that is needed for walk
network scanner
❙ GSM, WCDMA, LTE FDD, LTE tests and drive tests. WLAN or Bluetooth® connects
TDD, CDMA2000®, 1xEV-DO, the smartphones/tablets used for data collection.
Walk and drive testing with TETRA, WiMAX™ and spectrum The autonomous mobile network scanner can also
flexible connectivity analysis simultaneously in one run comprehensive drive test software, such as
scanner R&S®ROMES4 or SwissQual Diversity Optimizer,
❙ Connects to Windows PC, on its built-in i5 processor. Multitechnology and
Android UE or tablet multiband measurements provide full flexibility.

R&S®TSME
❙ Multiband support from The extremely compact R&S®TSME offers all
Ultracompact drive test
350 MHz to 4.4 GHz that is required for mobile use. Multitechnology
scanner
❙ Up to eight technologies measurements and multiband support provide full
simultaneously in one scanner flexibility and an optimal price/performance ratio for
All bands, all technologies, ❙ Compact, lightweight design both drive tests and walk tests.
simultaneously

R&S®TSMW
❙ User-definable input frequency The R&S®TSMW universal radio network analyzer is
Universal radio network
range from 30 MHz to 6 GHz a platform for optimizing all conventional wireless
analyzer
❙ Parallel measurements in GSM, communications networks. Two frontends for any
WCDMA, LTE, CDMA2000®, input frequency from 30 MHz to 6 GHz, preselection
Scanner for drive tests and 1xEV-DO, TETRA and WiMAX™ and software-defined architecture offer unsurpassed
I/Q streaming networks with the R&S®ROMES4 performance while providing maximum flexibility.
drive test software In addition to functioning as a scanner for wireless
communications networks, the R&S®TSMW is also
an ideal digital I/Q baseband receiver.

R&S®TSML-CW
❙ Wideband receiver (80 MHz to The R&S®TSML-CW radio network analyzer is the
Radio network analyzer
6 GHz) ideal choice if the user wants to carry out distance
❙ Support of distance triggered triggered CW measurements.
Drive test scanner for CW CW measurements
measurements

Test mobile
SwissQual QualiPoc
❙ Rich set of service tests for voice QualiPoc Android is based on the latest commercial
Android
quality, data, messaging and Android smartphones. It supports all mobile network
video quality to reflect the real technologies used worldwide, and covers multiple
Smartphone-based end user experience protocol layers as well as the IP stack in real-time.
product for optimizing QualiPoc Android provides extensive test functions
mobile networks for voice, including MOS, data, video streaming, and
messaging tests to assess and reflect the real end-
user experience QoS/QoE within a mobile network.

30

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 From pre-sale The Rohde & Schwarz network in over 70 countries ensures
optimum on-site support by highly qualified experts.
User risks are reduced to a minimum at all stages of the

to ­service. project:
❙❙ Solution finding/purchase
❙❙ Technical startup/application development/integration

At your doorstep. ❙❙ Training

❙❙ Operation/calibration/repair

Finland

Norway
Finland

Norway Sweden Estonia

Sweden Latvia
Denmark Estonia
Lithuania
United Latvia Russian
Denmark Lithuania
Poland Federation
Kingdom
United Russian
Netherlands Federation
Kingdom Poland
Netherlands Czech Republic
Ukraine
Czech Republic
France Austria Hungary Ukraine
Slovenia Romania
Switzerland
France Austria Hungary
Slovenia Romania
Switzerland Bulgaria
Serbia
Italy
Serbia Bulgaria
Spain Italy Azerbaijan
Portugal Spain Azerbaijan
Portugal Greece Turkey
Greece Turkey

Malta Cyprus
Canada Malta Cyprus
Canada Germany
Cologne
Cologne Germany
Munich
Portland Ottawa Munich Kazakhstan
Portland Ottawa Kazakhstan
Mongolia
Mongolia
Azerbaijan
Azerbaijan
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Columbia/Maryland Beijing
Beijing
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Japan
Seoul
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Israel Korea
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Kanagawa
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Jordan Chengdu
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Gumi CityCity
Osaka
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China Osaka
Pakistan
MonterreyMonterrey Egypt UAE Karachi Shanghai
Shanghai
Egypt UAE New
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Saudi Karachi NewDelhi
Delhi Guangzhou Taipei
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Mexico Mexico Arabia
Arabia India
India Shenzhen Taiwan
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Mexico City Oman Shenzhen
Mexico City Oman Mumbai Hong
Kaohsiung
Kaohsiung
Mumbai Hanoi Hong
Hyderabad Hanoi Kong
Sales level Senegal Hyderabad
Sales level Senegal Vietnam Kong
Vietnam
Nigeria Ho Chi Philippines
Thailand Ho Chi
Sales locations Nigeria Bangalore Thailand Minh City Philippines
Sales locations Bangalore Penang Minh City
Penang Malaysia
Service level Selangor Malaysia
Service level Colombia
Kenya Selangor
Colombia Singapore
Backup service Kenya
Singapore
Backup service Indonesia
Area support center Brazil Indonesia
Area support center Brazil
Local service center
Local service center
Calibration and maintenance with Rio de Janeiro
standardized
Calibration and automatic
maintenance with calibration Rio de Janeiro
standardizedsystems
automatic calibration São Paulo Australia
South Africa
systems Uruguay
São Paulo Australia
Calibration and maintenance Chile South Africa Sydney
Uruguay Melbourne
Calibration and maintenance
Maintenance Chile Argentina
CanberraSydney
Argentina Melbourne
Maintenance Canberra New Zealand

New Zealand

Rohde & Schwarz R&S®ROMES4 Drive Test Software 31

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 About Rohde & Schwarz
Service that adds value The Rohde & Schwarz electronics group offers innovative
❙ Worldwide solutions in the following business fields: test and mea-
❙ Local and personalized surement, broadcast and media, secure communications,
❙ Customized and flexible
cybersecurity, radiomonitoring and radiolocation. Founded
❙ Uncompromising quality
❙ Long-term dependability more than 80 years ago, the independent company which
is headquartered in Munich, Germany, has an extensive
sales and service network with locations in more than
70 countries.

Sustainable product design

❙❙ Environmental compatibility and eco-footprint
❙❙ Energy efficiency and low emissions
❙❙ Longevity and optimized total cost of ownership

Certified Quality Management Certified Environmental Management

ISO 9001 ISO 14001

Rohde & Schwarz GmbH & Co. KG
www.rohde-schwarz.com

Rohde & Schwarz training
www.training.rohde-schwarz.com

Regional contact
❙❙ Europe, Africa, Middle East | +49 89 4129 12345
customersupport@rohde-schwarz.com
❙❙ North America | 1 888 TEST RSA (1 888 837 87 72)
customer.support@rsa.rohde-schwarz.com
❙❙ Latin America | +1 410 910 79 88
customersupport.la@rohde-schwarz.com
❙❙ Asia Pacific | +65 65 13 04 88
customersupport.asia@rohde-schwarz.com
❙❙ China | +86 800 810 82 28 | +86 400 650 58 96
customersupport.china@rohde-schwarz.com

R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG

5214.2062.12 08.00 PDP 1 en

Trade names are trademarks of the owners

PD 5214.2062.12 | Version 08.00 | December 2016 (ch)
R&S®ROMES4 Drive Test Software
Data without tolerance limits is not binding | Subject to change
© 2009 - 2016 Rohde & Schwarz GmbH & Co. KG | 81671 Munich, Germany

5214206212

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