R&S_Drive_Test_1301

Drive Test Solutions

Date | Title of presentation | 1

Agenda l l l l l l

Mission & Visions for Rohde & Schwarz Market position of Rohde & Schwarz Drive Test Tools ROMES software platform TSMx scanner Summary


Missions & Visions 1. Increase your revenue with a stable mobile

network 2. Reduce complexity of measurements 3. Quick roll out of new network technologies


Agenda l l l l l l

Missions & Visions for Rohde & Schwarz Market position of Rohde & Schwarz Drive Test Tools ROMES software platform TSMx scanner Summary


Rohde & Schwarz at a Glance l

Independent, autonomous company

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More than 75 years in the business

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A worldwide leading manufacturer of T&M and communications equipment

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Represented in over 70 countries, with subsidiaries in 60 countries

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Turnover of EUR 1.3 billion (FY 09/10)

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8000 employees worldwide


Volume of Sales: Group of Companies


Rohde & Schwarz Around the World


R&S Drive Test Systems l

Coverage & QoS Measurement Systems l

20 years experience in development of Drive Test solutions

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Core expertise in RF Test & Measurement

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ONE software platform ROMES for all technologies

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Full product portfolio for comprehensive 2G, 3G and 3.5G testing

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Member in international bodies and normative committees e.g. ITU, 3GPP, ETSI, ngmn, LSTI, etc.

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Many satisfied customers around the world: global operators, regulators, railways, phone and chipset suppliers, military, …


Who uses our Drive Test Systems? l

Network operators l l l l l

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Regularity authorities l l

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Ensure quality, coverage and usage of specified resources Monitoring

Chipset/Handset vendors l

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Network optimization/planning Network troubleshooting Benchmarking/Competition analysis Ensure network quality and coverage Handset test with CRTU and ROMES

Scanner measurements bring network issues to light

Service Suppliers


R&S Drive Test customers Vodafone Global (UK, Hungary, Italy, Greece, Spain, Croatia, New Zealand, Poland, Austria, Germany) T-Mobile International (Czech Rep., Hungary, Croatia, Germany, Austria, Netherlands, UK) Orange (Netherlands, France, Switzerland) Verizon Wireless, AT&T Telefonica (Urugauy, Peru, Germany, Spain)


Railway operators (Germany, China, France, Belgium) Regularity Bodies (e.g. Germany, Romania, Poland, Finland, Norway, UK, Netherlands, Belgium, Spain, Saudi Arabia, Costa Rica) Safaricom (Kenya) Sony Ericsson Mobile (Sweden) Military Universities

Agenda l l l l l l

Targets for Rohde & Schwarz Market position of Rohde & Schwarz Drive Test Tools ROMES software platform TSMx scanner Summary


Drive Test Systems

Backpack System

TSMx scanner

Fixed Expert System

QualiPoc


Backpack System

ROMES Software

ROMES NPA

Backpack - Benefits l l l l l

Full indoor tests with one TSMx and two mobiles Rugged compact backpack for all terrain Video and voice quality measurements Battery packs provide power supply for up to 4 hours Approximately 6 kg


Backpack - Benefits l l l l l

Full indoor tests with one TSMW Rugged compact backpack for all terrain Battery packs provide power supply for up to 3 hours Internal PC allows remote access Approximately 18 kg


Agenda l l l l l l



Software platform ROMES 4


What is ROMES? l

ROMES is a Drive Test Tool used for: l l l l

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ROMES collects and evaluates Drive Test Data from devices: l l l

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Network Optimization (Capacity and Quality) Quality of Service surveys Benchmarking BTS Position Estimation

Test Mobiles / Data Cards / UEs R&S Scanners GPS

Supports all major Technologies: l

LTE, GSM, GPRS, EDGE, WCDMA, HSDPA, HSUPA, HSPA+, CDMA2000 1x EVDO, WLAN, WiMAX, CW, Spectrum Scan


Drive Test Architecture Scanner Hardware

Driver

Application ROMES

GSM/WCDMA CDMA2000 1xEVDO

WiMAX

GBit LAN

LTE

ROMES TSMW scanner

TETRA Spectrum GSM/WCDMA/ CDMA2000 1xEVDO/CW Spectrum

Test mobiles

Firewire

USB / PCMCIA

*.txt ROMES TSMQ scanner

*.RSCMD

ROMES Nokia GSM/UMTS ROMES Qualcomm GSM/UMTS ROMES LTE Mobile


ROMES4

Post Processing NPA

Supported test mobiles l

LTE l

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HSPA/WCDMA/GSM: l l l l l l l l

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Sagem OT 260/290 Siemens S55-R/S75-R

CDMA2000 1x EVDO Rev A: l l l

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Qualcomm Test Mobiles TM 6250 / 6275 / 6280 / 7200 / 8200 Samsung U700, U900, i900, S8500I Huawei E17x, E22x, E1820, E398 LG MU/CU500, TU550, etc. Option Globe Trotter Data Cards Novatel Wireless Merlin U740/870, etc. Sierra Wireless Aircard A850, A860, A875, A508, A313U Nokia 6120, 6121, 6720, C5

GSM/(E)GPRS: l

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Samsung, Qualcomm

Novatel S720 Sierra Wireless AC595 Kyocera Coronado

Generic mobile driver for AT commands


Why do I need a Test Mobile? l l

Trace interface offers access to measurement data Dedicated mode measurements l l l l l l

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Throughput tests Connection Quality Soft- and hard handover Video and Voice Quality Network Quality, ratio of dropped/blocked calls IP-protocol tracing

Tests from the subscribers point of view


Why do I need a Scanner? l l

50x higher performance than test mobiles can deliver Independent to the network l l

l l l l l l

Hidden neighborhoods Pilot Pollution and interference causes are not detectable

Spectrum analysis provides a detection of external interferences Independent of mobile chipsets –> reference Higher level and time accuracy compared to mobile based measurements Use of only one unit for different networks and applications No costs and no capacity will be allocated Cheaper compared to many band-dedicated units


Mobile / Data card vs. Scanner Data Cards

R&S Scanners

Single bands

30 MHz to 6 GHz

Operator limitation

YES

NO

Operating charges

YES

NO

QoS

YES

SOME

End-to-End

YES

SOME

Coverage

SOME

YES

Accuracy

LOW

VERY HIGH

Speed

LOW

VERY HIGH

Frequency limitation


ROMES benefits l Network optimization lReduces number of sites lLess power consumption lLess investments into sites l Evaluation during the drive l Time saving way in finding Interferences and missing Neighbors l Modular and flexible architecture l16x mobile driver support lNo limitation for number of connected devices l Service contract includes free updates l Important Post-Processing tools are supported l Costumer get all equipment from one supplier


ROMES key features GSM Interference Analysis

HSPA Measurement

ROMES2 Go

WCDMA Interference Analysis

ROMES Usability

Voice Quality

Neighborhood Analysis

LTE Measurement

Spectrum Scan

BTS Position Estimation

Network Problem Analyzer

IQ Streaming

Generic Mobile Driver

BCH Demodulation

Floating License

Route Track Visualization

Indoor Measurements

Scanner Overview


GSM Interference Analysis in 4 Steps Adj-Channel Interferer 21

20

20

Co-Channel Interferer

45 89

BTS List

1. Test Mobile delivers RxLev, RxQual & C/I during call 2. Definition of thresholds based on a) C/I £ X b) RxLev ³ Y AND RxQual ³ Z 3. Violating any of the above thresholds triggers an “interference event” 4. Automatic identification of interferer(s) Date | Title of presentation | 25

Interference Event List


Interference Analysis l l l l

C/I Analysis with: GSM test mobile GSM Network Scanner GSM BTS base station list


Interference Analysis - Background (1)


GSM Scanning l l l

Decoding of broadcast information as like BCC, BSIC, CI, LAC, MNC, MCC Vertical gray bar refer to same channel but different sources -> Possible interferer


GSM Scanning l l

TopN view of scanned channels together with BCH information Scanned C/I value to compare with test mobile


GSM NWS Spectrum Measurements l

Shows all frequencies of one cell

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Serving Cell (SC) sources are: l

Either a mobile

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Selected channel of the GSM NWS

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SC BCCH and TCHs (acc. to BTS list)

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Each channel can be selected for details and waterfall history


SC BCCH

SC TCHs

Automatic Identification of Interferer

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Automatic Identification of Interferer by Training Sequence Code (TSC) and Timing – with reference to the BTS list


Automatic Identification of Interferer

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even a 2nd interferer in the same situation is identified


Interference Analysis - Background (2) BS3 69 40 26

SC BTS BTS BTS BTS 1 2 3 4 C0

20

90

25

69

BS4 20 33 10

SC 20 25 70

20

(BCCH)

C1

25

20

40

40

33

C2

70

15

53

26

10


BS1 90 20 15

BS2 25 40 53

Interference Analysis - Background (3) Possible Interfering Type of Interference Channels C0 Serv. Cell (=20) C1 Serv. Cell (=25) C2 Serv. Cell (=70)

BTS4 – C0 (= 20)

C0C0

BTS1 – C1 (= 20)

C0Cx

BTS2 – C0 (= 25)

CxC0

BTS3 – C2 (= 26)

CxCx (Adj)

BTS3 – C0 (= 69)

CxC0(Adj)


Scanning WCDMA/CDMA l

TopN view including pilot pollution (bar chart lines) and broadcast information

Count of Pilots not limited


Scanning WCDMA/CDMA l

CPICH power and aggregated power represented as fading taps


Scanning – SC Tracer l l

Over the Air BTS test Synchronization of BTS Meas. time Delay time


Neighborhood Analysis – Features l l l l l

Easy way to find Interferences Find missing or wrong neighborhoods Done by demodulation of broadcast information Intra 2G/3G handover optimization Only base station list is required


Neighborhood Analysis – Benefits l l l l l

Automatic searching for network troubles The quick discovery of reasons for dropped calls, low data rate Approval of wanted Missing-Neighborhoods Less dropped calls Increase revenue and customer satisfaction


Neighborhood Analysis 2G/2G l

Overview on 2G/2G neighbours – mobile and scanner comparison

Only Neighbour of one TopN member In TopN but not in BA list

How often have neighbours of the BA list been measured by the scanner


Shows all neighbours of selected Serving Cell on the left with their measurement values

Neighborhood Analysis – 2G/3G

Target: Network Optimization Key Information: Active Set l

Active Set

Soft Handover Status

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Strong Signal available

Active Set full

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Strong Signal available Neighbour


Interference (Pilot Pollution) Active Set not full Missing

Neighbourhood Analysis – Background

TSMx

NodeB Data Base

?

SIB11 Active Set

SIB11 ? =

Neighborhoods


? =

Neighborhoods

Missing Neighbor - Interferer

Activ set Measured CPICH

Active Set full 3 dB

Registered Neighborhood: Interferer, Pilot Pollution, wrong Neighborhoods No Neighborhood: Possible Interferer

Active Set not full 3 dB

Registered Neighborhood: wrong Neighborhoods No Neighborhood: Missing Neighborhood


Normal cases

Activ set Measured CPICH

Active Set full 3 dB

Registered Neighborhood: normal case No Neighborhood: normal case

Active Set not full 3 dB

Registered Neighborhood: normal case No Neighborhood: normal case

Measured CPICH filtered by several absolute and relative criterions


Neighbourhood Analysis - Decision tree Criterions

TopM

M = M+1

Abs. Criterion fulfilled Rel. Criterion fulfilled

Not fulfilled Cancellation

Not fulfilled

TopM is neighbor of Top1 in the DB

yes

M > Active Set Max Count (= Active Set full?)

no

yes

PI Type = 1 Within Add Window? yes Active Set full? no


no

PI Type = 2 no Within Interferer Window?

no

yes

yes Missing Neighbor (MN)

Possible Interferer (PI Type)

Neighbourhood Analysis – HW requirements l l l l l l

TSML-G GSM Network Scanner TSML-W WCDMA PN Scanner or TSMU with WCDMA PN Scanner Option (TSMU-K11) TSMU with BCH Demodulator Option (TSMU-K14) TSMU with GSM Network Scanner Option (TSMU-K15) Or TSMQ


Neighborhood Analysis – SIB 11 Analysis l

Overview on differences between SIB11 and NodeB data base

!! Missing !!


Handover Analysis Filter

Type of Handover


BTS Position Estimation l

What is the target of this application? l l l l l l

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Generating of BTS lists in just driving with TSMx scanner Reuse BTS lists for Neighborhood Analysis Reuse BTS list for Interference Analysis Use BTS list to find BTS positions of competitors/operators in other countries Share BTS sites with other operators …

What are the requirements l l

TSMQ or TSMW TSMX-PPS GPS Module


BTS Position Estimation l l

Driving around the area of interest Output result is a list with: l l

Seen BTSs (incl. BCCH, MCC, MNC, LAC CellID) Estimated geographical location


Estimated BTS

Export BTS List to Google or to text file


BTS Localizations result


HSDPA - Technology Overview Node B: Generation of Scheduling Information for the User Data based on User Feedback

High Speed Dedicated Physical Control Channel

High Speed Shared Control Channel

UE1

HS-SCCH Scheduling Information High Speed (Physical) Downlink Shared Channel

HS-(P)DSCH User Data Date | Title of presentation | 54

UE2

HSDPA – Features/benefits l

Support of Qualcomm chipset l l l l l l

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Qualcomm TM6275, TM6280, TM7200, Samsung Z560 / U700 Option Globetrotter Fusion+ HSDPA data card Novatel Wireless Merlin U870 PC card Nokia N95 / 6120 / N85 / N96 / N6720 Huawei E17x, E22x, E1820 etc. LG MU/CU500, TU550

Throughput performance on PHY/MAC/RLC/Layer 3 BLER, CQI, DTX, HARQ-ACK, channel status Statistical evaluation All parameter represented by colors for quick problem identification


HSDPA - View l

UL HS-DPCCH

DTX

ACK


NACK

HSDPA - View

1 Subframe

SCCH demodulated SCCH successfully decoded DSCH CRC Check Passed (yellow: no valid DSCH) New Transmission (red: retransmission) Modulation QPSK (red: 16QAM) Number of in parallel DSCH Codes per UE HARQ process ID


HSDPA - Decode Statistic View

SB+: number of successfully decoded sub blocks SB++: number of successfully decoded sub blocks, sent more than once, although the first transmission was already successful SB-: number of sub blocks that could not be decoded SBLER: Sub Block Error Rate in % BL+: number of successfully decoded blocks BL-: number of blocks that could not be decoded BLER: Block Error Rate in % #1: percentage of successfully decoded blocks at first transmission, etc.


HSDPA Performance Views (1/2)

   

Average CQI Requested, scheduled and delta QPSK/16QAM rates Requested, scheduled and delta average no. of codes Requested, scheduled and delta throughput Date | Title of presentation | 59

HSDPA Performance Views (2/2)

 Block Error rate on hs-MAC layer (=HARQ) and RLC layer  Throughput on hs-MAC layer (=HARQ) and RLC layer Date | Title of presentation | 60

HSDPA – Background (I) l

Shared Channel transmission:  Channelization codes and transmission power in a cell are dynamically

shared between users.  A new transport channel High Speed Downlink Shared Channel (HSDSCH) is introduced. l

Adaptive modulation and coding (AMC):  Adaptation of transmission parameters to radio conditions and terminal

capability  Modulation schemes: – 16-QAM (Quadrature Amplitude Modulation): UE capability – QPSK (Quadrature Phase Shift Keying): mandatory for UE


HSDPA – Background(II) l

Hybrid automatic-repeat-request (HARQ)  Improving robustness against link adaptation errors  UE rapidly requests retransmissions of erroneously receveived data  UE can combine information from the original transmission with that of

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later retransmissions (Soft Combining)

Fast scheduling in the Node B instead of RNC  Moving scheduling and processing of retransmissions closer to air

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interface  New MAC-hs (Medium Access Control – high speed) protocol entity in the Node B

Short transmission time interval of 2ms  Accelerating packet scheduling for transmission


HSUPA – Features/benefits l

Support of Qualcomm chipset l l l l

l l l l

Qualcomm TM7200 Option Globe Trotter GT MAX HSUPA Nokia 6720 Huawei E17x, E22x, E1820 etc.

Additional parameters to HSDPA: Happy Rate, DTX Rate, ACK and NACK Rate Retransmission counter and statistics L1/MAC statistics


HSUPA – Cell status l l

Colors for a quick status overview 7 further HSUPA specific views


HSxPA – Categories HSDPA

DL rate

HSUPA

UL rate

Category 1/2

1.2 Mbit/s

Category 1

0.73 Mbit/s

Category 3/4

1.8 Mbit/s

Category 2

1.46 Mbit/s

Category 5/6

3.6 Mbit/s

Category 3

1.46 Mbit/s

Category 7/8

7.3 Mbit/s

Category 4

2.00 Mbit/s

Category 9

10.2 Mbit/s

Category 5

2.93 Mbit/s

Category 10

14.4 Mbit/s

Category 6

5.76 Mbit/s


Even easier operation l

3-Step Wizards

l

Dynamic help bar to lead the user through his tasks


Even easier operation l

Scan Hardware - no more dealing with COM ports

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Workspace also part of measurement file


Export your drive to Google Earth l l

Quick and Easy visualization for Non-ROMES users KMZ format is very compact


TSMW LTE Scanner Highlights l

LTE Key Features l

Frequency range from 30 MHz to 6 GHz, up to 64 frequencies in parallel

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All channel bandwidths supported: 1,4; 3; 5; 10; 15; 20MHz

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Excellent sensitivity down to -127 dBm, synchronization from -123dBm

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Up to 200 measurements/sec

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Maximum dynamic range, down to a C/I of -20dB

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Support of FDD and TDD – from the beginning

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Automatic detection of all available Physical Cell Ids

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Measurements of RSRP, RSRQ P-SCH and S-SCH power and SINR

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Channel Impulse Response for Signal reflection and Guard Interval analysis


A first challenge – LTE frequency bands... E‑ UTRA Uplink (UL) operating band Operating BS receive Band UE transmit

1 2 3 4 5 61 7 8 9 10

…by GCF prioritized frequency bands for LTE

11 12 13 14 15 16

FUL_high 1980 MHz 1910 MHz 1785 MHz 1755 MHz 849 MHz

FDL_low 2110 MHz 1930 MHz 1805 MHz 2110 MHz 869 MHz

840 MHz 2570 MHz 915 MHz

875 MHz 2620 MHz 925 MHz

1784.9 MHz 1844.9 MHz 1770 MHz 2110 MHz 1447.9 MHz 1475.9 MHz

– FDL_high – 2170 MHz – 1990 MHz – 1880 MHz – 2155 MHz – 894MHz – 885 MHz – 2690 MHz – 960 MHz – 1879.9 MHz – 2170 MHz – 1495.9 MHz

Duplex Mode

FDD FDD FDD FDD FDD FDD FDD FDD FDD

– 716 MHz – 787 MHz – 798 MHz

– – –

746 MHz 756 MHz 768 MHz

20 21

– – – – –

728 MHz 746 MHz 758 MHz Reserved Reserved 716 MHz 734 MHz 830 MHz 860 MHz 845 MHz 875 MHz 862 MHz 791 MHz 1462.9 MHz 1495.9 MHz

– – – – –

746 MHz 875 MHz 890 MHz 821 MHz 1510.9 MHz

FDD FDD FDD FDD FDD FDD FDD FDD FDD FDD

... 33 34 35 36 37 38 39 40

1900 MHz 2010 MHz 1850 MHz 1930 MHz 1910 MHz 2570 MHz 1880 MHz 2300 MHz

– – – – – – – –


– – – – – – – –


TDD TDD TDD TDD TDD TDD TDD TDD



Europe, Japan, Korea

Europe

FDD FDD

698 MHz 777 MHz 788 MHz Reserved Reserved 704 MHz 815 MHz 830 MHz 832 MHz 1447.9 MHz

17 18 19

China

– – – – – – 830 MHz – 2500 MHz – 880 MHz – – 1749.9 MHz 1710 MHz – 1427.9 MHz – FUL_low 1920 MHz 1850 MHz 1710 MHz 1710 MHz 824 MHz

Downlink (DL) operating band BS transmit UE receive

US

Europe

Source: 3GPP TS 36.101

LTE Scanner Measurements

Interferences ?

Stronges Cell = Serving Cell ? BCH Demodulation ? Date | Title of presentation | 71

LTE UE Measurements

Protocol ?

Quality ? Modulation ?


LTE UE Measurements

Coverage ?

Throughput ?


Neighbors ?

Network Problem Analyzer – NPA l

What is the NPA? l l l l

l

Automatic Analysis of recorded *.RSCMD drive test files Indicates problem areas Offers possible reasons Link the problem areas in ROMES

Features l l

Multiple file processing Plug-Ins allow flexible analysis – – – –

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Handover Analysis Neighborhood Analysis Coverage Analysis Interference Analysis

Quick and simple


Imagine someone gives a measurement file to you, and you immediately see this:


Save time and money with ROMES NPA – get quick results l l l l l l l l

Quick overview of measurement file(s) content No manual analysis work required Automated KPI calculation and problem detection Automatic map handling (Google, OpenStreetMaps, MapInfo, ESRI) More than one file may be analyzed at a time Automated reporting capabilities NPA runs on same system as ROMES Customer specific extensions possible (using NPA SDK)


Comparison NPA – Classical Post Processing l l l l l

l l l l l

small and quick Can be run locally (doesn’t require a server) Easy to operate No or little pre-configuration Perfectly aligned with ROMES features

R&S NPA

Classical post processing

Heavy and big system Usually runs on server (incl. DB) Training required (e.g. Actix) Operator specific configuration required Usually part of customer’s established process chain


Existing ROMES Workflow Measurement & Overview

ROMES

ROHDE & SCHWARZ Replay & Analysis

RSCMD File

3rd party PostProcessing DB


ROMES

Possible processing and analysis with ROMES l

l

Already contains analysis tools like Neighborhood Analyzer, GSM Interference Detection, etc. Wide range of strong visualization capabilities Drill down and detailed analysis possible (e.g. HSPA) Well known tool for radio engineers

l

However… Analysis limited to single file

l l

l l l

Manual work and lot of time required Limited overview of complete measurement file Limited reporting capabilities (mainly via screenshots)


Times are changing: The ROMES NPA Measurement & Overview

ROHDE & SCHWARZ Result Overview GUI

Replay & Analysis

Result Files

ROMES

ROMES NPA RSCMD Files

3rd party PostProcessing DB


ROMES

ROMES NPA Workflow 1. Load measurement data – one or more files


ROMES NPA Workflow 2. OPTIONAL: Select and configure Analyzer Modules


ROMES NPA Workflow 3. Start Analysis – this can be done for several files in parallel


ROMES NPA Workflow 4. READY – check the results


ROMES NPA Workflow 5. With ROMES4NP11 Extended NQA for GSM, WCDMA and TETRA: Problem Spot Analysis with problem reasons


ROMES NPA Workflow 6. Optional: Automatic synchronization and further drill down with ROMES


NPA Output – Main KPIs l

To get a quick overview for each used technology


NPA N15 Coverage – Scanner Coverage and Raster l

To check problems in coverage, compare coverage of different providers or technologies, check TopNs


NPA N15 Coverage – Coverage and Interference problem spots


NPA N20 Data – HSPA/LTE statistics l

Automatic statistics for many HSPA/LTE data parameters


NPA N20 Data – HSPA/LTE problems

l

Combination of Coverage check and Throughput problems


NPA Output – BTS lists l

Best server for each location and neighbor cells


NPA Output – BTS lists l l

Best provider for each location BTS Lists with history (different network states on different dates)


NPA Output - Neighborhood Analysis l

l

Neighbourhood Analysis (for LTE and TETRA) For GSM and WCDMA to come


NPA Output - Handover Analysis l

l

Handover Analysis (for LTE and TETRA). For GSM and WCDMA to come


Context Filtering Example: l Coverage for one cell


NPA - Maps l

Maps l l l l l

Uses Google Maps or OpenStreetMaps For data sensitive customers: in case of Google Maps: only relevant geographical area is transmitted to Google – nothing else Required license for all Map formats is part of NPA Location of maps (from 4.63 onwards): New map formats in 4.64: MapInfo „*.tab“


NPA – General Q&A l

Processes rscmd files only, no 3rd party files (Nemo, TEMS, etc.)

l

New Licenses: l

l

For existing customers or ROMES upgrades: l

l

NPA Basic package included in ROMES Basic package NPA Basic can be offered separately for EUR 1.000

New ROMES license for customers always comes along with 2 dongles l l l

one for ROMES one for NPA can be used in parallel on same PC


Voice Quality Analysis - SQA l l l l

Measurements according to the PESQ standard (ITU-T P.862) Results are expressed by MOS, like the user would realize R&S acquired licenses from „Opticom“ PESQ ensures comparability of the results

PESQ: Perceptual Evaluation of Speech Quality MOS: Mean Opinion Score


Impairment

Grade

Excellent

5

Good

4

Fair

3

Poor

2

Bad

1

Voice Quality Analysis - Setup ROMES SQA

soundcard

Audio adapter

Test mobile

Connection over the air

SQA Server ISDN controller C4

Main controller TSPC4 ? = Voice sample copy

l l

Reference voice sample

For up to 4 parallel measurement Further extension possible


Voice Quality Analysis – SQA features l Real end-to-end measurements l available in different directions: - voice in downlink direction (ISDN server to mobile) - voice in uplink direction (mobile to ISDN server) - voice in up- and downlink (mobile to mobile)

l a reference voice sample is received & compared with a

local sample copy


Voice Quality Analysis - PESQ Perceptual Model

Internal Representation

Comparison

Reference (= Input)

Test (= Output)

Perceptual Model

Internal Representation


Audible Difference

Cognitive Model

Total Quality Figure

RF Power Scan with TSMx RF Power Scan view shows l

All defined sweeps

l

Selected sweep (incl. Markers)

l

„Waterfall diagram“


RF Spectrum Scan l

Waterfall diagram for quick spectrum survey

Complete Spectrum


RF Spectrum Scan l


UL Activities


RF Spectrum Scan l


DL Activities


RF Spectrum Scan l


DL Channel Matrix


RF Spectrum Scan l


DL UMTS Carriers


TSML/U/Q vs. TSMW TSMx (TSML-x/U/Q)

TSMW

1

2

80 MHz – 3 GHz (6 GHz at TSML-CW)

30 MHz – 6 GHz

ca. 30 kHz (fixed)

Min. 140 Hz Adjustable via FFT and Bandwidth

Adjustable Bandwidth



1 MHz – 20 MHz

FFT Size



16 / 32 / 64 / 128 / 256 / 512 / 1024 / 2048 / 4096 / 8192

Spectrum Clearance Threshold





Adjustable ROMES Update Rate



Update Rate of the Views and the Signals

ROMES ASCII Export



Marker (4x Fixed, Free, Current Peak), Sweep Rate, All Channels

Jump-To-Next-Measurement-Point



Supported Frontends Frequency Range Adjustable RBW


The fixed marker jumps automatically to the measurement value or channel center frequency next to the clicked frequency value

Web based TSMW maintenance l l l l l

Change TSMW IP Adress See installed option keys Install new options Check current Firmware Update Firmware


TSMW – IQ Streaming l

What does this mean? l

l

Key Features l l l l

l

The TSMW & TSMW-K1 can be used for seamless IQ data recording

Streaming of up to 20 MHz BW Real-time or Offline data analysis Open Interface via MatLab Simple data transfer via LAN

Benefits l l l

Record IQ Data with TSMW –> Replay on Signal Generator Customer integration into its own SW Sample Application for quick integration


Record IQ Data Seamless ~70 MBytes/sec @ 20 MHz and 12 bit resolution


Floating Licenses l

Loaning licenses over defined time

Server

Drive Test System

Return by Expiration ROMES

ROMES License

Rent License


Generic mobile driver l l l l

Supports all commercial mobiles for drive test GSM/WCDMA AT commando view, RxLev, CI, LAC, MNC, MCC NQA can be used for call statistics SQA analysis can be done by the generic mobile driver

Modem port ROMES Core

Diagnostic port


Indoor coverage l l

Simple map reference Hot spot mode or continuous coverage mode


Mapping l l l l l l

Map&Guide OpenStreet Map MapInfo ESRI CMRI LS Telcom


Route track visualization I l

BTS integration by 2G and 3G database Unnecessary handover

Handover „Ping Pong“ effect

Route Track Ec/Io GSM/UMTS BTS


GSM BTS

Route track visualization II

Downtilt „Ping Pong“ effect

Downtilt


Localization


BCH Demodulation l

l

Demodulation of all available broad cast information Cell IDs, LAC, Neigbours, TCHs, TX Power, MNC, MCC, ULInterferences, Neighbours for IntraFreq Handover.


BCH Demodulation Estimated Position

All available Operators All available Cells

Basic Cell Information All available SIBs

Broadcasted 2G Neigbours

Broadcasted 3G Neigbours


Agenda l l l l l l



Receiver series for Drive Test

Supported standards

TSML-x

TSMU

TSMQ

TSMW

One fixed

One at a time

(out of WCDMA, GSM, CDMA2000, EVDO, CW, Spectrum)

(out of WCDMA, GSM, CDMA2000, EVDO, CW, Spectrum)

Multiple in parallel

Multiple in parallel

(out of WCDMA, GSM, CDMA2000, EVDO, Spectrum. CW separately)

(out of WCDMA, GSM, CDMA2000, EVDO, Spectrum,

New TSML-GW Scanner for GSM and WCDMA in parallel

additionally LTE, WiMAX, IQ, TETRA

Interface

ROMES, ViCOM

ROMES, ViCOM

ROMES, ViCOM

MatLab/C++ ROMES, ViCOM

Measurement speed

regular

high

superior

Extremely fast


Covered Bands GSM850, GSM900, GSM1800, GSM1900 PCS … WCDMA850, WCDMA900, WCDMA1700, WCDMA1900, WCDAM2100 … CDMA450, CDMA800, CDMA1900 … …… 30MHz 80MHz

TSML-x

3GHz

TSMU

TSMQ


6GHz

TSMW

TSMx Scanner – Benefits l l

Higher performance than test mobiles can deliver The mobiles can only “see” what the base station them tells to see l l

l l l l l l

Hidden neighbourhoods Pilot Pollution and interference causes are not detectable

No costs and no capacity is allocated Spectrum analysis provides a detection of external interferences Independent of mobile chipsets –> reference Higher level and time accuracy compared to mobile based measurements Use of only one unit for different networks and applications Cheaper compared to many band-dedicated units


TSMx Scanner useful for … l l l l l l l l l

Detection of Missing Neighbor Cells Pilot Pollution Analysis Interference Hunting (In- and Out-Band) BTS Position Estimation Propagation Model tuning Network planning Benchmarking RF-Spectrum Scan …


Unique Features of TSML-x series l

Applicable independent form frequency band (80 MHz to 3 GHz)

l

CW receiver is applicable to WiMAX measurements up to 6 GHz

l

Single mode operation units saving costs

l

Faster and more accurate than competitors

l

Up to 6 carrier in parallel

l

Broadcast demodulation


TSMU – Features/Benefits l

Proven receiver technology since 2003

l

All technologies GSM/WCDMA/CDMA/EVDO and CW in one box

l

2500 rake receivers enables the user to analyze fading

l

First receiver for broadband usage 80 MHz to 3 GHz

l

High speed CPICH synchronization

l

Up to 12 carriers simultaneously

l

Easy mobile backpack integration

l

Options give maximum degree of freedom


TSMQ – Features/Benefits l

Parallel measurements of GSM/WCDMA/CDMA/EVDO

l

Multitechnology measurements in one drive test

l

Unattached of frequency band, 80 MHz to 3 GHz possible

l

Highest performance (WCDMA 50 Hz)

l

Up to 12 RF-carriers simultaneously

l

CW measurements are separately possible

l

Low power consumption of 8 W

l

Fits into a glove box


TSMW – Wideband Scanner l

l

2 RF-Signal Paths from 30 MHz to 6 GHz Each Front-End with 20 MHz BW Pre-Selection for higher intermodulation resistance Sensitivity down to –127 dBm (for LTE) Support of (limited) WiMAX IEEE 802.16e and LTE TDD+FDD GSM, WCDMA, CDMA2000, EVDO, TETRA, IQ Unbeatable measurement speed (WCDMA 100Hz, GSM 350ch/s, incl. demodulation) Built-in GPS Scalable hardware – all in parallel ViCOM OEM interface

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Outlook - LTE MIMO Q4/2011

l l l l l l l


TSMQ- Performance typical meas.rate in Hz

Single mode

Dual mode

Dual mode

50

19

20

100

50

Dual mode

Triple mode

Triple mode

8

20

80

50

20

10

5

5

WCDMA PNS HS

GSM Network Scanner*

cdma2000 PNS 10 CW 625 * Channels per second


10

TSMx – Performance (Single mode) typical meas. rate in Hz WCDMA High Speed (incl. decoding of BCH)

GSM Network Scanner* (incl. decoding of BCH)

TSML-W TSML-GW

TMSL-G TSML-GW

TSML-C

TSML-CW

10

40

CDMA2000/EVDO

5

(incl. decoding of BCH)

CW

625

TSMU

TSMQ

TSMW

20

50

100

80

100

350

10

10

10

625

625

WiMAX 802.16e

5

LTE FDD/TDD

200

* Channels per second


Agenda l l l l l l

Mission & Visions for Rohde & Schwarz Market position of Rohde & Schwarz Drive Test Tools ROMES software platform TSMx scanner Summary


Summary l l l l

Rohde & Schwarz Drive Test Solutions offers for a wide range of application cases with software and hardware modularity R&S Drive Test tools can help to reduce network complexity Existing technologies can be maintained to ensure revenue New technologies can be roll out quick to reach ROI


Further Information l l

www.drivetest.rohde-schwarz.com Application notes: l l l

l

1SP56 Guideline for Scanner-based Drive Tests 1SP55 TSMW Digital I/Q Interface Option K1 1SP52 Voice Quality Measurements with R&S ROMES SQA

Technical article in R&S-News l l l l l l l

192: Radio Network Analyzers for all tasks and any budget 192: Straightforward solution: neighborhood analysis in 2G and 3G networks 195: HSPA measurements with all the bells and whistles 197: TSMW for IQ and WiMAX measurements 198: ROMES2Go 199: Automatic Detection and Identification of GSM Interferences 199: Network Problem Analyzer


R&S_Drive_Test_1301

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