UIC-ERTMS-WC-2-1-Final1 (HSUDR)
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Transcript of UIC-ERTMS-WC-2-1-Final1 (HSUDR)
www.gsm-rail.com
Enhanced reliability
and stability
of the GSM-R system
Jean Michel Evanghelou Head of Railways Solution
Kapsch CarrierCom
Gottfried WINTER Head of GSM-R Sales Department
Funkwerk AG
2 www.gsm-rail.com 2
Agenda
1. Enhanced reliability and stability of the GSM-R
infrastructure considering interoperability
2. Enhanced reliability and stability of the GSM-R cab
radio/ EDOR considering interoperability
3 www.gsm-rail.com 3
Agenda
1. Enhanced reliability and stability of the GSM-R
infrastructure considering interoperability
2. Enhanced reliability and stability of the GSM-R cab
radio/ EDOR considering interoperability
4 www.gsm-rail.com
The Departure Point : GSM-R’s ‘Pure-Play’ Telecom Heritage
A network architecture built on GSM standards
GSM-R seen as a pure telecom system
Safety requirements applied onto the ETCS 2 application layer only
Foundation for evolution set : R4, GPRS, IP
5 www.gsm-rail.com
GSM-R Lifecycle Adapted to Railway Requirements
Railway versus Telecom lifecycles
Long term technology support (beyond 2030)
Evolutionary products
Obsolescence management to address longevity requirements
6 www.gsm-rail.com
GSM-R : from ‘Telecom Service’ to a ‘Mission-Critical Element’
Railway operational rules mandate functionalities not included in legacy GSM standard
Features added to meet the specific requirements of Railways’ critical communications
GSM-R providers refine specific and complex algorithms for radio signal processing to
compensate the impact of high speed on voice calls (HSUDR)
Strong demand for improved Railway Emergency Call functionality and Location
Dependent Addressing feature : eREC & eLDA
ASCI Features
Shunting
FN, LDA, REC
ETCS, ER-Band
7 www.gsm-rail.com
GSM-R Capabilities to Deliver Highest Quality of Service
Rules have been set on GSM-R infrastructure to ensure the highest levels of reliability,
availability and security (Voice and ETCS L2) - Voice circuits & now packet mode
GSM-R specific architecture is designed to continuously improve network security
Definition of full GSM-R ecosystem including terminals, cab radios, GPRS, ...
Interoperability tests between vendors and End-to-End validation of ecosystem
products
Automated Disaster Recovery
Core Network Geo-Redundancy
Double Coverage for Radio Sites
Radio Cell Overlapping
8 www.gsm-rail.com
“Reliability” Radio Approach
BTS with internal redundancy to protect BCCH (Broadcast Control CHannel) bearer
Double coverage with co-located BTS in the same radio site
On a given radio layer, a cell can allow handover from neighboring cells N-2 and N+2
Layer 1
Layer 2
Cell NCell N-1Cell N-2 Cell N+1 Cell N+2
Cell N’Cell N’-1Cell N’-2 Cell N’+1 Cell N’+2
9 www.gsm-rail.com
“Flexibility” Core Approach : GSM-R R4 Deployments
Full GSM-R R4 networks, combined with ETCS L2 & High Speed
LIVE R4 ETCS L2
LIVE R4
LIVE R4 ETCS L2
R4 in validation
ETCS L2
LIVE R4
LIVE R4
ETCS L2
High Speed
R4 in validation
R4 in validation
R4 in deployment High Speed
ETCS L2
High Speed
ETCS L2
High Speed
ETCS L2
High Speed
ETCS L2
High Speed
ETCS L2
ETCS L2
ETCS L2
■ Austria
■ Bulgaria
■ Czech Republic
■ Lithuania
■ United Kingdom
■ Algeria
■ Ireland
■ Poland
■ France
■ Germany
■ Hungary
■ Saudi Arabia
■ Slovenia
■ Netherlands
■ Norway
■ Sweden
R4 in deployment
R4 in deployment
R4 in deployment
R4 in engineeering
R4 in engineering
R4 in engineering
R4 in deployment
ETCS L2 High Speed
10 www.gsm-rail.com
“Stability” Core Approach : Disaster Recovery Schemes
In case of loss of the complete active
switching center, a recovery will be set
from the failed switching center to the
backup one.
The backup switching center is ready to
perform the service as HLR, IN and
SGW nodes, working in mated-pair
have up-to-date data.
Backup MSC becomes active and can
handle the complete network traffic
management.
As one active BSC of one radio layer is
down, process to activate related
backup BSC for this radio layer has to
be done.
Switchover of the optical transmission
network has to be performed to ensure
the right paths for new configuration of
service management.
Media
Gateway 1
Media
Gateway 2
SCP1 SCP 2
MSCS 1 MSCS 2HLR 1 HLR 2
IP routersIP routers
SGW 1 SGW 2
Optical SDH
Transmission Network
BSC 1A/2B
SMS-C
VMS
VRS
SMS-C
VMS
VRS
GSM-R
Dispatcher
Switch
GSM-R
Dispatcher
Switch
TCU 1A/2B BTS network BSC 2A/1B TCU 2A/1B
Jeddah OCC KAEC BOCC
ADM SDHADM SDH
11 www.gsm-rail.com 11 www.gsm-rail.com 11
Agenda
1. Enhanced reliability and stability of the GSM-R
infrastructure considering interoperability
2. Enhanced reliability and stability of the GSM-R cab
radio/ EDOR considering interoperability
12 www.gsm-rail.com 12 www.gsm-rail.com
GSM-R Network
GSM-R
network
Dispatchersystem
Handhelds (GPH, OPH, OPS)
Cab Radios
EDOR
13 www.gsm-rail.com 13 www.gsm-rail.com 13
How to verify Interoperability?
Cab Radios, EDOR and SIM cards are subject to Interoperability
■ Terminals have to work seamless in each national network
Cab Radio and EDOR standard is based on actual EIRENE,
Baselines and National Add-on’s
To assure all these features -> Suppliers have to provide
certificates of the European Notified Body as well as of all
National Authorities
Tests, lab costs, preparation of documents and invoices of the
authorities are very cost driving
14 www.gsm-rail.com 14 www.gsm-rail.com 14
Six key questions regarding GSM-R terminals
How to meet the high demands on reliability?
How to warrant the Railway product lifecycles also with the cab radio?
How to ensure the sufficient availability of cab radio and EDOR equipment?
How to save life cycle costs?
How to open the cab radio for implementing of additional features?
How to handle the drastic explosion of homologation costs?
15 www.gsm-rail.com 15 www.gsm-rail.com
Reliability / Life cycle
How to meet the high demands on reliability?
How to warrant the Railway product lifecycles also with the cab radio and EDOR?
Development according to the requirements of security, reliability and stability
More than 10 years experience in the field – permanent feed-back for improvements
Long term technology support for cab radios beyond 2030
High level obsolescence management (long life electronic components, stock)
16 www.gsm-rail.com 16 www.gsm-rail.com
Availability / Life cycle costs
How to ensure the sufficient availability of cab radio and EDOR equipment?
How to save life cycle costs?
Improvement of MTBF figures
Implementation of the new GSM-R transceiver generation (blocking, GSM-ER band)
Remote diagnosis procedures for pre-corrective maintenance
Remote Software Upgrade system
17 www.gsm-rail.com 17 www.gsm-rail.com
Additional features / costs for Homologation
How to open the cab radio and EDOR for implementing of additional features?
How to handle the drastic explosion of homologation costs?
Faster time to market required
Reaction-less functional modules for EIRENE-independent feature implementation
Improvement of modular hard- and software design
Customized compilation
18 www.gsm-rail.com 18 www.gsm-rail.com 18
Conclusion
The industry is ready to meet
the special railway
requirements of enhanced
reliability
and stability by considering
the interoperability
www.gsm-rail.com
Thank you