The telecom consultants with unique expertise in GSM-R and indoor coverage network design

A projects engineer is verifying a network design

Clear CinCom radio planners install a GSM-R measurement device in order to measure Quality of Service on the platform

Clear CinCom director Martijn Kuijpers with a radio network planner on board a GSM-R measurement train

A radio network planner operates the receiver for radio monitoring on board a GSM-R measurement train

Installing measurement equipment on a mobile aerial access platform

The antenna distribution panel inside the measurement train enabling 10 simultaneous QoS tests

A GSM-R measurement train is equipped with a host of tools for accurate network validation

Senior Radio Planner Fitzgerald on site survey

Clear CinCom Clients and Projects

2011

The Hanzelijn (The Netherlands) – Quality of Service Testing

With the initial optimisation of the Hanzelijn completed, Clear CinCom engineers undertook an intensive 5 day program of Quality of Service measurements. These Quality of Service measurements encompassed the National network criteria and Subset-093 in accordance with ERTMS GSM-R QoS Test Specification 0-2475v3.

A number of test setup’s were run simultaneously to record the results for Bit Error Rate, Transmission Interference Rate, Data Delay, Connection Loss Rate, Connection Establishment Delay, Call Setup Success Time and Call Setup Success Rate at data speeds of 2400bps, 4800bps and 9600bps. In addition to this the coverage in accordance with EIRENE was also measured every 100m section of track.

Further to conducting the test measurements, Clear CinCom successfully assembled and installed a Fixed Side setup with 4x V110 modems based on a PRI Card and a Desktop PC. The installation was connected to a E1 line and setup in the Lelystad RBC technical room. This provided the fixed side engineer with a simple, robust and reliable installation for the Subset-093 Transmission Interference Rate measurements which saved the client money and time.

Client: Nokia Siemens Networks Netherlands

The Hanzelijn (The Netherlands) – Testing and Optimisation

With the construction and commisioning of the 6 new sites on the Hanzelijn being completed, testing and optimisation commenced. The Hanzelijn runs for approximately 45km between the towns of Lelystad and Zwolle with the test runs taking place along the entire length of the track.

The GSM-R coverage, the handover behaviour between the cells and the repeater redundancy concept for the Drontermeer tunnel , was analyzed and optimised in order to be compliant with SubSet093 for the ETCS Level 2 railway line. Various KPI's were tested among the Bit Error Rate, Transmission Interference Rate, Call Setup Success Rate and Transfer Delay Rate were all measured to gauge the quality of the GSM-R radio environment.

The testing also required the C2000 (TETRA) network to be measured along the complete Hanzelijn track and in the Drontermeer tunnel in both the downlink and uplink directions. Further to this, a test was conducted ‘on foot’ in the escape areas of the Drontermeer Tunnel. The equipment and the unique adaptation of the wheel sensor/odometry system (as used in the HSL-Z Tunnel Oude Maas test) were implemented for the C2000 testing of the Hanzelijn.

Client: Nokia Siemens Networks Netherlands

Hanzelijn (The Netherlands) – New Site Integration Test Measurements

On completion of building the 6 sites on the new Hanzelijn, extensive GSM-R testing was executed on all the connecting and surrounding train lines to ensure no network degradation was present.

The testing consisted of coverage and quality over a period of one week which illustrated the successful integration of the new Hanzelijn sites. Clear CinCom engineers worked closely with Nokia Siemens Networks staff to integrate the new sites on this important project, with a minimum of optimization required on the test drives to ensure all the key performance indicators passed.

Client: Nokia Siemens Networks Netherlands

Arnhem (The Netherlands) Dive Under – C2000 (TETRA) Measurements

In conjunction with the re-design of Arnhem Central Station a new dive under is being constructed to alleviate the congestion of heavy rail fright traffic bound for the Betuwe freight line.

The receive levels were measured from a number of C2000 donor sites at the location identified for the new pick-up antenna to serve the tunnel. A Rohde & Schwarz scanner was used with different antennas from a panel type to a yagi, which provided a number of scenarios which assisted in the decision making to finalize the design.

Clear CinCom engineers measured the losses and gains for all the individual elements of the test equipment setup, assimilated an accurate ‘link budget’ and applied an offset to the recorded results. This provided the customer with increased accuracy when reporting the received signal levels.

Client: Nokia Siemens Networks Netherlands

Arnhem (The Netherlands) Central Station – Continuous Wave Measurements

The re-design and build of Arnhem Central Station requires the surrounding GSM-R radio network to be modified to ensure it serves the new platform, station hall and InfoPlus panels with acceptable coverage levels and suitable capacity.

A continuous wave measurement test was conducted to ensure the new proposed site location was suitable for the required re-design. Using an LMW Carrier Wave transmitter equipment setup, a survey was conducted on foot in the new station hall, platforms and utility locations to identify any areas of concern if they were present.

Further to this, a Line of Sight survey was conducted which assisted in the decision making process regarding the location of the new site.

Client: Nokia Siemens Networks Netherlands

Drontenmeer Tunnel (The Netherlands) - C2000 (TETRA) Measurements

The Drontenmeer Tunnel is located on the Hanzelijn between Lelystad and Zwolle. Clear CinCom conducted C2000 measurement inside tunnel on foot using an Anritsu handheld scanner and a TETRA ‘quarter wave’ receive antenna which was pole mounted. Measurements were taken at 10m intervals to ensure the received levels from the C2000 donor sites would service the tunnel in case of emergency situations. In addition to this, Line of Sight surveys were conducted to assist in the selection of the best serving site.

Client: Nokia Siemens Networks Netherlands

Oldenzaal (The Netherlands) GSM-R Site Re-location

The re-location of this GSM-R site was required due to the development of the surrounding commercial land. Clear CinCom conducted Carrier Wave measurements in the new site location to gauge the levels of coverage which would be provided by the new site in this area.

LMW Carrier Wave transmitter equipment was used to radiate a test signal along an important regional rail track which links the Netherlands with Germany. A scheduled passenger train was used to measure the transmitted levels by using an Agilent scanner and a test PC connected to the trains GSM-R antenna.

Client: Nokia Siemens Networks Netherlands

Tunnel Oude Maas (The Netherlands)

The Tunnel Oude Maas is a two tube tunnel on the High Speed Line which underwent a replacement for 325m of ‘leaky feeder cable’.

This is a special location area, in which the requirement for both the GSM-R radio environment and the C2000 (emergency TETRA radio network) environment were tested. The equipment used a Clear CinCom inspired hybrid designed of bespoke testing and standard testing platforms, consisting of Kapsch radios for the GSM-R and a Rohde & Schwarz TSML CW Scanner for the C2000. In addition to this, because of the tunnel environment, location based GPS data could not be used. Therefore a unique installation was commissioned to use a train odometery system in conjunction with track Km markers to ensure the recorded levels were accurately referenced to a position. All the tests were conducted in both the ‘uplink’ and ‘downlink’ directions which ensured full functionality for both technologies.

Client: Nokia Siemens Networks Netherlands

Almere and Leiden (The Netherlands) Integration Measurements

The GSM-R cell sites serving the train stations in Almere and Leiden underwent carrier unit additions to improve capacity for the new InfoPlus panel installations.

The new TCH (traffic channel) frequencies which are assigned to the new carriers units, needed to undergo integration testing to ensure no GSM-R network degradation was present to the surrounding network. Both GSM-R network coverage and quality were tested with a high degree of success.

The integration of the new carrier units and the associated frequencies were accepted into the Netherlands GSM-R network with a quick and efficient turn around time between its inception and delivery.

Client: Nokia Siemens Networks Netherlands

Almere (The Netherlands) Region Network Quality Investigation

GSM-R network quality issues were discovered in the Almere region utilizing static measurement equipment. The test setup encompassed the use of a Kapsch radio and a TrioRail handset in dedicated mode connected to antennas mounted on a tripod at the side of the track. A potential interfering frequency from another GSM-R network cell was identified. From the information gleaned from the test, optimization work ensued to eliminate the interfering frequency and solve the quality issue.

Client: Nokia Siemens Networks Netherlands

Utrecht (The Netherlands) Triangle Re-design and Post Optimization Testing

The Utrecht Triangle consists of national train lines that connect Utrecht with Breudijk to the west and an ETCS line to Breukelen in the north. This critical and busy region underwent many optimization changes that encompassed cell additions and removals, physical antenna changes and frequency re-planning to four important GSM-R network cell sites.

In addition to the GSM-R coverage, Bit Error Rate and Call Setup testing was conducted to ensure a high level of GSM-R network quality was maintained when the optimization changes were implemented.

Client: Nokia Siemens Networks Netherlands

Hattem (The Netherlands) Dive Under

Radio network testing was conducted for a repeater cell which was installed in the Dive Under tunnel as part of the Veluwelijn and the Hanzelijn. This test was conducted using a scheduled commuter train with a test radio connected to the trains GSM-R antenna. This specific test proved the correct functionality of this repeater and ensured that the coverage levels in the Dive Under are acceptable for safe voice train communication.

Client: Nokia Siemens Networks Netherlands

2010

SLA 2010 (The Netherlands)

The annual GSM-R Radio ‘Service Level Agreement’ measurements in 2010 encompassed the testing of the High Speed Line, the Betuwe freight line and all the ‘Non Centrally Serviced Areas’ (NCBG) which involved connecting branch lines to busy shunting and freight areas.

In addition to utilizing the Kapsch radio modules to measure the coverage and Idle Mode state, an Agilent scanner was used to conduct spectrum measurements and TrioRail handsets for Carrier to Interference measurements. The Idle Mode measurements provided invaluable data with regards to defining the network in relation to the VGCS (Voice Group Call Areas). With conducting all the tests simultaneously, aspects of both coverage and quality were tested to ensure a high level of GSM-R service to enhance safety in potentially dangerous and busy industrial areas.

Client: Nokia Siemens Networks Netherlands

Site Integration Testing - Almere/Leiden/Amsterdam-Zuid (The Netherlands)

GSM-R network capacity upgrades were required with the implementation of new InfoPlus panels at the stations of Almere, Leiden and Amsterdam-Zuid

The additional carrier units and the associated new TCH frequencies required integration testing to ensure no network degradation was present on the surround train lines. Both coverage and quality were tested which lead to the successful completion of the carrier upgrade program.

Client: Nokia Siemens Networks Netherlands

Nijverdal (The Netherlands) Re-development

Major re-development work in the Nijverdal area includes a lengthy tunnel being excavated so the nation train line can run beneath the town.

Due to this, the GSM-R installations that currently serve the Nijverdal area required to be relocated/re-designed to ensure the required levels of service are maintained. In addition to this, the C2000 (TETRA) aspects for emergency services had to be taken into account because of the new tunnel being constructed.

Two continuous wave radio tests were conducted at the new site locations based at each end of the tunnel. A drive survey record the measured levels along the track in question in both an easterly and westerly direction for both locations. The C2000 test was conducted to measure the received signal levels from the donor site; again this was conducted in the two locations for the proposed new installation.

Client: Nokia Siemens Networks Netherlands

Update GSM-R Radio design for the Tunis – Sfax line

The Final Cell Plan is updated with the clients technical site survey information. Adjustments are made to the frequency plan and neighbour plan due to spectrum allocation regulations.

Client: Nokia Siemens Networks Tunisia

SLA Trend Analysis

Producing insight in the GSM-R radio network performance trend for the years 2004, 2005, 2007 and 2009.

Client: Nokia Siemens Networks Netherlands

Validation of GSM-R Radio Network at train station Rotterdam Blaak

After the implementation of the GSM-R radio network at train station Rotterdam Blaak as designed by Clear CinCom, the radio engineers tested and validated the performance of the radio network at various InfoPlus passenger information panels. These panels have a inbuilt GSM-R GPRS modem enabling the train departure information being send over the GSM-R network.

Client: Nokia Siemens Networks Netherlands

Validation of GSM-R Radio Network at Schiphol Airport

After the implementation of the GSM-R radio network at Schiphol Airport as designed by Clear CinCom, the radio engineers tested and validated the performance of the radio network at various InfoPlus passenger information panels at Schiphol Plaza. These panels have a inbuilt GSM-R GPRS modem enabling the train departure information being send over the GSM-R network.

Client: Nokia Siemens Networks Netherlands

Betuwe Route Performance Measurement

The major railway freight line of the Betuwe Route in The Netherlands was performance tested by Clear CinCom engineers. The quality parameters of the Bit Error Rate, Transmission Interference Rate, Call Setup Success Rate and Call Setup Times were all tested simultaneously. The measurements provided all concerned parties with an indication of quality and effectiveness of this important ERTMS served freight railway track.

The performance measurements were conducted along the entire length of the Betuwe Route in both directions to ensure consistent and accurate results, which Clear CinCom are renowned for delivering.

Client: Nokia Siemens Networks Netherlands

Validation of Network Capacity Upgrades Hilversum – Best – Eindhoven

On the busy national railway lines in the Amsterdam and Eindhoven regions of The Netherlands, GSM-R radio network capacity upgrades were required. Two additional carrier units and a carrier unit swap were identified as a course of action to meet the traffic requirements. When the design was implemented, Clear CinCom engineers validated and tested the GSM-R network in the local areas to ensure the new carrier additions and carrier swap were not only effective, but also to ensure no GSM-R network degradation and interference was present.

The comprehensive testing proved the design did not effect the coverage or the quality of Dutch GSM-R network whilst at the same time providing the much needed capacity improvements.

Client: Nokia Siemens Networks Netherlands

Continuous Wave Measurements - Amsterdam Centraal Station

Clear CinCom engineers undertaken Continuous Wave measurements in the central railway station in the capital city of Amsterdam in The Netherlands. These measurements were conducted to determine the best location for a new site design, to serve a major re-development and role out of the InfoPlus digital information panels throughout the station. The station itself has a system of three tunnels which connect the main station hall to the platforms. These tunnels provided a difficult technical challenge to ensure the required levels of coverage were met whilst testing the individual locations for the new proposed radio site.

Client: Nokia Siemens Networks Netherlands

Private GSM indoor Design – Hospital The Netherlands

Clear CinCom designed an indoor GSM radio network to provide coverage for a large university hospital in The Netherlands. The layout and architecture of the building provided many challenging aspects when designing the network, which has to be implemented for a couple of thousand staff working over more than ten floors and in separate buildings to the main hospital building. The nominal cell plan and frequency plan was delivered as per the customer requirements.

Client: Koning & Hartman

GPRS Validation

GPRS ‘ping’ testing was undertaken to gauge the quality of the data transfer in Dutch GSM-R network. The test was conducted by utilizing three set-ups running simultaneously over three different BSC areas on national railway tracks. Many thousands of samples were collected and analyzed which illustrated the high quality and low ‘delay times’ of data transfer in the GSM-R network.

Client: Nokia Siemens Networks Netherlands

2009

Design GSM-R Network for Tunis - Sfax line

GSM-R radio network for Tunisia’s first GSM-R enabled railway.

Client: Nokia Siemens Networks Tunisia

Re-design VGCS configuration Utrecht

Redesign of the railways around Utrecht, which required a new design of the VGCS (Voice Group Call Service) group call areas.

Client: Nokia Siemens Networks Netherlands

HSL Zuid High Speed Connection

Design and optimisation of the redundant (double coverage) layer for the underground passages of the high speed train connection that connects Rotterdam to Brussels.

Client: Nokia Siemens Networks Netherlands

Rotterdam Harbor

Optimisation of network in the world’s largest harbor, to ensure GSM-R connectivity for transportation of goods

Client: Nokia Siemens Networks Netherlands

InfoPlus GSM-R Network Selection Test

Tests around the country to ensure that the modem in InfoPlus railway information boarding connects properly to the GSM-R network.

Client: Nokia Siemens Networks Netherlands

Relocation of Existing GSM-R BTS Sites

Radio planning of new locations for existing BTS points, Radio Site Acceptance Tests (SAT).

Client: Nokia Siemens Networks Netherlands

Amsterdam Central Station, Utrecht Central Station, Rotterdam Blaak Station, Schiphol Airport Train Terminal

Design GSM-R network to connect InfoPlus information boarding for all platforms, tunnels and halls.

Client: Nokia Siemens Networks Netherlands

Supervision of transmission plan

For the Dutch high speed train connection Hanzelijn, Clear CinCom has been put in charge of supervising the GSM-R transmission plan for the entire route.

Client: Nokia Siemens Networks Netherlands

Coordinate Line of Sight requests

For the development of the new high speed train connection between the West and East of The Netherlands, the Hanzelijn, Clear CinCom supervises all Line of Sight (LoS) requests.

Client: Nokia Siemens Networks Netherlands

Implementation communication system for tunnel under lake ‘Drontermeer’

The ‘Drontermeertunnel’ is a tunnel for a Dutch high speed train passing underneath the lake Drontermeer. Clear CinCom performs the measurements needed to implement not only the GSM-R network infrastructure, but also the Dutch Tetra communication system, used for emergency communication.

Client: Nokia Siemens Networks Netherlands

Design Final Cell Plan (FCP) of Hanzelijn in The Netherlands

Transform the previously created Nominal Cell Plan (NCP) into a Final Cell Plan. Performing Continuous Wave measurements, comparing these to the theoretical propagation, translating network requirements into design criteria at cell planning level and surveying selected locations to determine site parameters.

Client: Nokia Siemens Networks Netherlands

Quality of Service validation of complete GSM-R network of The Netherlands

Yearly measurements of GSM-R network performance on more than 3000 kilometre of Dutch railway, in order to ensure the Service Level Agreement (SLA) between GSM-R infrastructure supplier MobiRail and GSM-R railway operator ProRail.

Client: Nokia Siemens Networks Netherlands

2008

Bit Error Rate and Transmission Interference Rate Data Analysis

Analysis of ETCS QoS parameters BER and TIR based on data of the Belgian railways, using in-house developed software.

Client: Siemens Belgium

Coverage of Antwerp Harbor

Conducting CW measurements in the harbor of Antwerp, for the benefit of radio planning.

Client: Siemens Belgium

Design Alternative Coverage Method

Creation of an alternative and more portable method of measuring coverage on railway tracks, without the need for a dedicated measurement train.

Client: Nokia Siemens Networks Netherlands

Traffic Research InfoPlus

Research into possible extra capacity in the GSM-R spectrum, to be used for the InfoPlus passenger information system

Client: Nokia Siemens Networks Netherlands

Network Design Using Band Repeaters

Ensure that passengers at the newly automated gates in front of the station's platform can communicate through GSM-R enabled communication pillars. This communication can be used when the gates fail, or in case of an emergency

Client: Nokia Siemens Networks Netherlands

InfoPlus measurements

Measurements at the larger train stations in The Netherlands, to ensure GSM-R coverage for the rollout of the new InfoPlus passenger information system.

Client: ProRail

Assistance of KPN Network Operation Center

Providing extra assistance to network operators involved in time consuming network problems, out of KPN’s Network Operations Center.

Client: KPN

SLA Trend Analysis

Producing insight in the GSM-R radio network performance trend for the years 2004, 2005 and 2007.

Client: KPN

GSM-R Radio Planning for New Coverage Areas in The Netherlands

Complete rollout of GSM-R (planning, optimisation and validation) of 15 previously unconnected, mainly industrial railways. The aim was to connect them to the central GSM-R network of the country.

Client: Nokia Siemens Networks Netherlands

2007

JJDPL line

Consulting with local radio planners of Siemens in China, on the roll out and optimisation of the JJDPL high speed railway from Beijing to Tianjin, constructed for the 2008 Olympics.

Client: Siemens China

Maasvlakte/EuroMax

Design, optimisation and validation of the GSM-R network on the extension of the Rotterdam harbor, including the EuroMax terminal.

Client: Siemens Netherlands

IDLE-Mode measurements

Measurements of network performance, while simulating the failure of base stations; giving insight in behavior of mobile stations in relation to VGCS group calls.

Client: KPN

Improving Network Performance

Optimizing underperforming locations in order for infrastructure supplier MobiRail to fulfill its service level agreement.

Client: Siemens Netherlands

Measuring Network Performance

Measuring the network performance of all Dutch GSM-R enabled railways under EIRENE specifications, in order to ensure the Service Level Agreement (SLA) between GSM-R infrastructure supplier MobiRail and GSM-R railway operator ProRail.

Client: Siemens Netherlands

GSM-R Betuwe Route

Design, optimisation and validation of Dutch railway connection under the ERTMS (ETCS) O-2475 requirements.

Client: Siemens Netherlands

Design Double Coverage Layer for HSL-Z

Design of redundant layer for the GSM-R network for the high speed railway connecting Amsterdam and Brussels, under the latest ERTMS (ETCS) O-2475 guidelines; tested and optimized at speeds of 40, 120, 160, 220, 300 and 330km/h.

Client: Siemens Netherlands

2006

Study and Cell Planning of Non-Centrally Serviced Areas

Analysis and nominal cell plan of 155 non-centrally serviced areas in the Dutch railway system, to establish and improve Quality of Service.

Client: Siemens Netherlands

GSM1800 NanoBTS Indoor Rabobank

Improving indoor coverage of all branches of the Dutch Rabobank, where special mobile phone subscriptions to its clients.

Client: Siemens Netherlands

Implementing ETCS between Amsterdam and Utrecht

Implementation of ETCS, optimisation for the latest ERTMS (ETCS) O-2475 requirements.

Client: Siemens Netherlands

Feasibility Study Low Speed Measurement Train / IFS Train compartment

Studies into feasibility and desirability of constructing a low speed measurement train and TVT compartment for HSL-Z.

Client: Infraspeed

2005

Feasibility Study Low Speed Measurement Train / TVT Locomotion

Studies into feasibility and desirability of constructing a low speed measurement train and TVT locomotion for HSL-Z.

Client: Infraspeed

Network Design Dive Under / Fly Over

Designing the GSM-R network for the dive under / fly over railway construction in Rotterdam.

Client: Siemens Netherlands

Measuring Network Performance 2005

Measuring the network performance of all Dutch GSM-R enabled railways under EIRENE specifications, in order to ensure the Service Level Agreement (SLA) between GSM-R infrastructure supplier MobiRail and GSM-R railway operator ProRail.

Client: Siemens Netherlands

GSM-R Interconnect Netherlands - Germany

Verification of the backhaul of the Dutch and German GSM-R network, in order to ensure correct configuration in and around the border area.

Client: Siemens Netherlands