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
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