RSCOM – RISC meeting
France
GSM-R / Mobile coexistence
National Cooperation/coordination Process
July, 6th 2016
01. GSM-R DEPLOYMENT AND COORDINATION PROCESSES
02. OVERVIEW OF THE SITUATION AS IN JULY 2015
03. PILOT GOVERNANCE & SCHEDULE
04. PREVENTIVE COORDINATION: AGREEMENTS BETWEEN PARTIES
05. CORRECTIVE COORDINATION: PROCESS & CASES
06. POC CONCLUSIONS
07. NEXT STEPS
1. National stakeholders
Synerail : to roll out GSM R infrastructure along railway tracks
Railway : SNCF networks, SNCF services and others, National Safety Authority
4 Mobile Operators : Bouygues Telecom, Orange, SFR Numericable, Free Mobile
2 Ministries : Transport (Railways), Economy (Electronic Communications)
ARCEP : Electronic communications regulator (NRA)
ANFR a key role as Spectrum Manager
European level: to prepare and to defend national positions on spectrum issues
National Spectrum manager : to address the needs from various sectors
Neutrality : to ensure coexistence between all spectrum users
Certainty : legal framework in place to declare base stations in operation
Tools : National data bases on radio sites, coordination processes and software,
monitoring tools and staff
3
1. GSM-R National Deployment
• Network main lines equipped (15 000/30 000 km)
• Public-Private Partnership (SNCF-Réseau and Synerail) signed in 2010
Operate GSM-R Network until 2025
Pay charges
4
1. GSM-R National Deployment (January 2016)
5
1. GSM-R National Deployment (2018 Target)
6
1. T4 Case and its outcomes
Line Characteristics
7
1. T4 Case and its outcomes
Line Characteristics
• Tramway line (8km) operated since 2006
• One of the first lines equipped with GSM-R in France
•Traffic: 1train/6min/direction
• GSM-R Network used for passengers information, operation and
emergency power cut at level crossings
• No issue until december 2013
December 2013
• Major GSM-R interferences: traffic interrupted during 1 month
• ANFR investigations showed an excellent overall signal but important
losses at given locations and more particularly at one level crossing.
• Cause: Upgrade of surrounding mobile networks to UMTS 900 (3G) which
brought about IM3
8
1. T4 Case and its outcomes
Outcomes
• 4 weeks of intense work between SNCF Réseau and mobile operators
• Given GSM-R deployment and mobile networks (3G/4G) upgradings
• Given the potential multiplication of interferences
• Given this type of situation already faced in other Member states
• Given risks for railway safety
• Given risks for the availability of the railway system
• It has been decided to develop a coordination framework between
SNCF Réseau and mobile operators coordinated by ANFR
9
2. Overview of the situation as in July 2015
CONTEXT & STAKES
PRESCRIPTIONS
RECOMMANDATIONS
COORDINATION PILOT PROJECT
ADDITIONAL CONSIDERATIONS
10
3. Pilot project : governance & schedule
ACTORS: ROLES & RESPONSIBILITIES
Key MILESTONES
o Sponsor : Ministry in charge of digital
economy & ministry in charge of
transports
o Project leader : ANFR
o Steering comity (steerco):
o Project kick-off: January, 20th 2015
o Draft ECC report 229 as initial basis
o A one year duration project involving
significant workload and dedication from
all group members






Sponsors
ARCEP
TELCOs
Railway companies (SNCF-Réseau, COSEA, UTP)
National Safety Authority
ANFR
o Project team



Telcos
SNCF-Réseau / COSEA
ANFR
•
•
•
8 Steerco
18 project group meetings (preventive
coordination)
12 project group meetings (corrective
coordination)
o Process assessment to be carried out by
mid-July 2016
o Agreed processes to be implemented by
end of July 2016
11
4. Preventive coordination : agreements
between parties
AGREEMENT ON COORDINATION
ZONE
!
AGREEMENT ON DATA TO BE SHARED
CAUTION
Coordination area !
AGREEMENT ON COORDINATION
PROCESS
AGREEMENT ON RISK ASSESSMENT
METHODOLOGY
(THRESHOLDS ADAPTED FROM ECC 229
REPORT)
12
5. Corrective coordination: process & cases
AGREED EX POST COORDINATION
PROCESS
2 PRACTICAL CASES ADDRESSED
13
6. Conclusions on the Pilot on
Coordination/cooperation
EX ante Coordination process : to mitigate the
risk of interference
Ex post
In case of identified interference, issue resolution process
•
Feasibility demonstrated
•
Ready to be implemented
•
1st assessment of the magnitude of
GSM-R issues :
• A manageable issue
• 1,1% Telco projects in the coordination
zone submitted to effective coordination
before ANFR agreement
• Discrepancies according to 900 MHz subband
•
GSM-R network optimisation to be explored before
triggering the issue resolution process
•
Key factors of success :
• reactivity
• mind-set & cooperation from all parties
•
Adaptation to be implemented:
• Coordination zone to consider
• Process standardization (data format,…)
• Process delays
• Thresholds (3 frequencies IM3, …)
•
Significant set-up and implementation costs
14
7. Next steps
•
The necessary upgrade of cab radio receivers (ETSI TS 102 933-1 v1.3.1) or implementation of necessary filters
(cab radio in place)
o
When ?
o
Various approaches at national level on the upgrade of cab radio receivers : is there a need for
investigating a common approach?
•
As recommended by the current national pilot and the ECC report 229
o
To launch the agreed national coordination process to ensure coexistence (July 16)
•
If needed, to solve remaining critical coexistence issues
o
National process and various tools
•
Lessons learnt from our national situation
o
ECC report 229 : to consider additional use cases to be described (i.e Inter Mod 3 frequencies)
o
To share national best practices to solve remaining critical coexistence issues (ECO web site?)
o
France will contribute to the on going CEPT questionnaire on ECC reports 162 and 229
•
A mutual interest and a future “win-win” situation
o
Today’s 2G/3G and GSM-R coverage
15
Thank you for your attention
26