GSM-R Applications
in Turkey's High
Speed Train Lines
Nuri 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 Part
Line 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
Ankara-Eskişehir-İnönü RBCs
Ankara
Ank.İst.
BSS
OMC-R
R
B
C
R
B
C
S
M
SC
OMC-S
R
B
C
LAN
MSC/
VLR
Ank.Kon.
BSS
Disp. PBX
Ankara-Konya RBCs
R
B
C
HLR/
AUC
AcK
IN
VRS
R
B
C
Eskişehir(İnönü)-Koseköy RBCs
ISDN BRI/PRI
SGSN
E1
Ethernet/IP, Fr Conn.
GPRS Part
GGSN
R
B
C
R
B
C
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 Architecture
For Co-sited Double Coverage
Site 1
Site 3
Site 2
Site 4
BSC&
TRAU
#1
Site 5
BTS
BTS
BTS
BTS
BTS SDH
BTS
BTS SDH
BTS SDH
BTS SDH
BTS SDH
Site 6
Site 7
Site 8
Site 9
BTS
BTS
BTS
BTS
BTS SDH
BTS SDH
BTS SDH
BTS SDH
Site 10
Site 11
MSC
Site 12
Site 13
BSC&
TRAU
#2
Site 14
BTS
BTS
BTS
BTS
BTS SDH
BTS
BTS SDH
BTS SDH
BTS SDH
BTS SDH
Each Layer of BTSs are connected to seperate BSC&TRAU.
Also BTSs are looped (max. 5 BTS) to increase reliability
GSM-R Projects (Completed):
Ankara-Konya
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 (On-Going):
Ankara İstanbul Phase II İnönüKöseköy 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
Against failure of one BTS site following scheme is adopted.
-85dBm
-92dBm
BTS
Site 1
Site 2
BTS
BTS
BTS
BTS
Site 3
Site 4
BSC&
TRAU
MSC
Site 5
BTS
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)
Leaky Feeder Cable
BTS
L-B
BTS
L-A
Site #1
MUL-A
R
U
R
U
BTS
L-A
R
U
R
U
MU
L-B
BTS
L-B
Site #2
TUNNEL COVERAGE
APPLICATIONS-II
Tunnel coverage scheme using antennas: 1 tunnel approx. 2km
length
Drive Test Result for Coverage
Coverage requirement >-82dBm is met. Tunnel coverage also tested
for subset 093 for data
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