GSM-R Applications in Turkey's High Speed Train

LinesNuri Hakan Ekmekci

TCDD, Etude, Project and Investment Department Electrification and Signalization

Division

Content

GSM-R Projects in Turkey

Tunnel Coverage Applications

GSM-R QoS tests

GSM-R Projects: Projects Map

*Taken from 11th transportation, maritime and communication council report, june 2013.• Already, about 480 km of HS tracks deployed/contracted for GSM-R

system.• Also, GSM-R has beginned to be installed on Conventional Rail lines to

replace old analog radio systems.

GSM-R Projects (Completed):Ankara-Eskişehir-İnönü-NSS PartLine Characteristics:

– 276 km, Double Track– Speed: 250km/h, ETCS Level 2 (ETCS Level 1 as

fallback)GSM-R Project Data (NSS Part)

– Vendor: NSN– NSS system components:

• MSC/VLR, HLR/AuC, (R99 version), GPRS, IN, SMS-C, Dispatcher PBX, AcK, Dispatcher Consoles, VRS, OMC-S

– For ETCS Level 2, 3 RBC connected to MSC

GSM-R Projects (Completed):-NSS Part Architecture

MSC/VLR

HLR/AUC

IN

Disp. PBX

SMS-C

VRS

SGSN GGSN

Ank.-İst.

BSS

Ank.-Kon. BSS

GPRS Part

OMC-R OMC-S

LAN

RBC

RBC

RBC

RBC

RBC

AnkaraAnkara-Eskişehir-İnönü RBCs

Ankara-Konya RBCs

AcK

ISDN BRI/PRI

E1

Ethernet/IP, Fr Conn.

RBC

RBC

Eskişehir(İnönü)-Koseköy RBCs

GSM-R Projects (Completed):Ankara-Eskişehir -İnönüPhase I -BSS Part

GSM-R Project Data (BSS Part)– Double Layer Radio Coverage (Co-Sited)

• -85dBm, -75dBm, -92dBm and -77dBm target coverage levels for trains, stations/shunting yards, handheld portables and tunnels, respectively.

– #BTS sites:37 for each for each radio layer (total=74)

– 2 BSC and TRAU for double layer coverage– OMC-R for BSS management

GSM-R Projects: BSS ArchitectureFor Co-sited Double Coverage

MSCBTS

BTS SDHBTS

BTS SDH

BTS

BTS SDH

BTS

BTS SDHBTS

BTS SDH

BTS

BTS SDHBTS

BTS SDH

BTS

BTS SDH

BTS

BTS SDH

BTS

BTS SDHBTS

BTS SDH

BTS

BTS SDH

BTS

BTS SDHBTS

BTS SDH

Site 1 Site 2 Site 3 Site 4 Site 5

Site 6 Site 7 Site 8 Site 9

BSC&TRAU

#1

BSC&TRAU

#2

Site 10 Site 11 Site 12 Site 13 Site 14

Each Layer of BTSs are connected to seperate BSC&TRAU. Also BTSs are looped (max. 5 BTS) to increase reliability

Line Characteristics:– Approximately 212km, double track, 1 Tunnel of approx. 2km

length– Speed: 250km/h, ETCS Level 2 (Level 1 as fallback)

GSM-R Project Data– Vendor: Kapsch – Single Layer Radio Coverage

• Eirene SRS 3.2.3 compliant: -92dBm, -94dBm, -99dBm, -82dBm target coverage level for trains, shunting,handheld portables and tunnels, respectively.

– Integrated into existing NSS– OMC-R for BSS– 1 BSC and 1 TRAU, 21 BTS– 2 RBC connected to MSC

GSM-R Projects (Completed):Ankara-Konya

GSM-R Projects (On-Going): Ankara İstanbul Phase II İnönü-Köseköy Section

Line Characteristics:– Approximately 150 km, several tunnels of total length approx. 60 km – Speed: 250km/h speed, ETCS Level 2 (Level 1 as fallback)

GSM-R Project Data– Vendor: NSN– Double Layer Radio Coverage (Co-sited for open area, interleaved in tunnels):

• -92dBm, -94dBm, -99dBm, - 82dBm target coverage levels for trains, shunting and handheld portables and tunnels respectively

– BTSs are connected to existing BSCs (Phase I), BSS Integrated into existing NSS

– # BTS sites: 44 (22 each layer), Each Layer connected to different BSCs,– Tunnel Coverage: F/O Repeaters, Leaky Feeder, Mu’s and OMC for Repater

system– 2 RBC will be connected to MSC

GSM-R Projects (On-Going):KÖSEKÖY-GEBZE-İstanbul (Haydarpaşa) Section

Line Characteristics:– Approx. 100 km(coverage requirement for GSM-R ), 10 tunnels of total length approx. 2701 m – 160km/h speed, ETCS Level 1

GSM-R Project Data– Vendor: Kapsch– Double Layer Radio Coverage (Interleaved using 1 BSC):

• -85dBm, -82dBm, -99dBm target coverage level for trains, station/shunting yards and handheld portables, respectively

• In case of one BTS failure, -92dBm coverage requirement– Will be integrated into existing NSS– 1 BSC

GSM-R Projects: Köseköy-Gebze BSS Architecture

BTS BTS

Site 1 Site 2 Site 3Site 4 Site 5

BSC&TRAU

BTSBTS BTSBTS

-85dBm

MSC

Against failure of one BTS site following scheme is adopted.

-92dBm

TUNNEL COVERAGE APPLICATIONS-I

To raise the reliability of tunnel coverage system, • the donor signals of two-adjacent BTS sites signal is fed to each

repeater.• Additionally, inside the tunnels each RU is placed to ensure coverage

even if one RU fails (interleaved coverage)

RU

RU

RU

RU

BTSL-A

MU-L-A

BTSL-B

MUL-B

BTSL-B

BTSL-A

Site #1Site #2

Leaky Feeder Cable

TUNNEL COVERAGE APPLICATIONS-II

Tunnel coverage scheme using antennas: 1 tunnel approx. 2km length

Coverage requirement >-82dBm is met. Tunnel coverage also tested for subset 093 for data

Drive Test Result for Coverage

GSM-R QoS Drive Tests Applications

For Voice Quality;– Coverage level, RxQual – Handover success rate, Handover execution delay– Connection establishment delay (also for ETCS data)– Cell (re)selection/HO ping pong– Call Set up success rate, Connection Drop Rate (also for ETCS data)– In Tunnel Coverage – Handheld Units Coverage

For Data (in accordance with Subset 093);– Data transmission interference rate– Transfer delay of user data frame– Connection loss rate (data)– Network registration delay

Thanks for listening