Broadband LTE Solutions for Transportation€¦ · LTE (Long Term Evolution) is a broadband...

2016

Broadband LTE Solutions for Transportation PRODUCT STRATEGY

LTE in Transport Page 1 of 24

TELTRONIC, manufacturer of professional radiocommunication equipment, is

complementing its current solutions based on TETRA technology, thanks to a new

product line focused on LTE technology (Long Term Evolution). In this manner, the

company anticipates the new trend in critical deployments for Public Safety and

Transportation markets, where there is an increasing demand of applications requiring

high data rates.

Buses, tramways, metros, conventional railways, high speed trains and the new

driverless automatic trains, demand communication systems offering high data

capacity which will enhance significantly both management and safety in the rail

operation as well as the quality of service for the passengers.

TELTRONIC’s LTE solution has been designed guided by the high demanding levels of

availability and security required in mission critical environments. Besides of this, it is

adapted to the specific requirements of every market segment in the transportation

sector. More specifically, LTE solution for Transport is able to provide service for

different applications used in the daily operation, like data transmission for rail signalling

systems, real-time surveillance, remote monitoring and maintenance, passenger

information systems, internet for passengers, etc.


Table of Contents

1. INTRODUCTION TO LTE TECHNOLOGY ................................................... 4

2. WHY BROADBAND IN TRANSPORTATION? WHY LTE TECHNOLOGY? . 5

3. LTE SYSTEMS DESIGNED FOR PROFESSIONAL COMMUNICATIONS .. 7

4. ENEBULA, TELTRONIC’S LTE PROFESSIONAL INFRASTRUCTURE ....... 9

5. ENTITIES IN TELTRONIC’S ENEBULA LTE SYSTEM ............................... 12

6. LTE APPLICATIONS FOR TRANSPORTATION SECTOR ........................ 16

6.1 LTE for surveillance systems (CCTV) ......................................................... 16

6.2 LTE for ETCS rail signalling applications .................................................... 18

6.3 LTE for CBTC rail signalling applications .................................................... 20

6.4 LTE for other applications ........................................................................... 21

7. KEY DIFFERENTIATORS OF TELTORNIC’S LTE SOLUTION .................. 23


Acronyms

3GPP Third Partnership Programme

AuC Authentication Centre

CBTC Communication Based Train Control

CCTV Closed Circuit Television

DTO Driverless Train Operation

ENC Evolved Node Controller

eNodeB Evolved Node B

EPC Enhanced Packet Core

ERA European Railway Agency

ERTMS European Rail Traffic Management System

ETCS European Train Control System

E-UTRAN Evolved Universal Terrestrial Radio Access Network

FDD Frequency Division Duplex

GoA Grade of Automation

GSM-R Global System for Mobile Communication - Railway

HSDPA High Speed Downlink Packet Access

HSS Home Subscriber Server

IEEE Institute of Electrical and Electronics Engineers

LTE Long Term Evolution

MIMO Multiple-Input Multiple-Output

MME Mobility Management Entity

NMS Network Management System

OFDM Orthogonal Frequency Division Multiple Access

PCRF Policy Charging Rules Function

PGW Packet Data Network Gateway

PIS Passenger Information System

PMR Professional Mobile Radio

PTT Push To Talk

QAM Quadrature Amplitude Modulation

QoS Quality of Service

QPSK Quadrature Phase Shift Keying

SC-FDMA Single Carrier Frequency Division Multiple Access

SGW Serving Gateway

SISO Single Input Single Output

STO Semi-automatic Train Operation

TDD Time Division Duplex

TETRA TErrestrial Trunked RAdio

UE User Equipment

UMTS Universal Mobile Telecommunications System

UTO Unattended Train Operation

VoIP Voice over IP


1. INTRODUCTION TO LTE TECHNOLOGY

LTE (Long Term Evolution) is a broadband telecommunications

standard developed by 3GPP (3rd Generation Partnership Project)

as the evolution of UMTS systems (Universal Mobile

Telecommunications System). The new architecture reduces the

number of network entities, making easy the design, enhancing

the spectral efficiency and providing higher data rates.

One of the key differences between LTE technology and its predecessors resides in the

management of the radio interface, now based in OFDMA (Orthogonal Frequency-

Division Multiple Access) for the downlink connection and SC-FDMA (Single Frequency-

Division Multiple Access) in the uplink connections. These modulation schemas can be

used in FDD mode (Frequency Division Duplex) with separated uplink and downlink

channels or in TDD mode (Time Division Duplex), where uplink and downlink

transmissions share the same frequency channel alternatively in time periods.

These features jointly with others like the use of MIMO techniques (Multiple-Input

Multiple-Output), result in LTE as the new generation of broadband technology, for both

the commercial and the professional markets, providing the following advantages and

benefits:

Low latencies in the establishment of new connections as well as in end-to-end data

transmissions.

High data rates.

Improvements in the spectral efficiency.

Better flexibility in the use and management of spectrum.

Simpler network architecture.

Improvements in mobility.


2. WHY BROADBAND IN TRANSPORTATION?

WHY LTE TECHNOLOGY?

Current needs of critical voice and data communications are covered nowadays by

narrowband digital technologies like TETRA, which provides a high degree of security

and safety, but a limited data capacity.

The demand of services and applications consuming high data dates such as on-board

video surveillance, real-time monitoring of video from Control Rooms, etc., is on the rise.

Hence, it makes necessary to invest in the upgrade of systems currently deployed in

order to provide a new broadband radio access fulfilling the requirements of previous

applications.

In the current landscape of technology, LTE intends to be the new generation of solutions

covering the broadband requirements of any kind of service. In mission-critical

environments like Transport, LTE seems to be the most adequate alternative. It has

the advantage to supply a pure IP packet network, what implies a fast network

management, low latencies and high data rates.

Next table shows the key technical features of LTE technology

PARAMETER VALUES

Maximum downlink data rate 172.8Mbps @64QAM 4/4 and MIMO 2x2

Maximum uplink data rate 57.6 Mbps @ 16QAM 4/4

Data type IP data transmission for voice and data

Channel bandwidths (MHz) 1.4, 3, 5, 10, 15 and 20 MHz

Duplex schemas FDD and TDD

Latency From idle to active status < 100 msec.

Using small packets ~10msec.

Spectral efficiency Downlink: 3-4 times as HSDPA latency (Rel 6)

Uplink: 2-3 times as HSDPA latency (Rel 6)

Radio Access OFDMA in downlink and SC-FDMA in uplink


PARAMETER VALUES

Modulation schemas QPSK, 16QAM, 64QAM

Table 1. Technical features of LTE technology.

Previous table shows some theoretical figures for LTE technology. However, in real

deployments there will be some variables affecting to actual values of data capacity in

the cell, latency, radio of coverage, etc. For instance, a few factors may be related to

the distance between the user equipment and the base station, the speed motion of the

user or the characteristics of the propagation channel.

LTE is based on adaptative modulation patterns and previous variable conditions will

determine the modulation schema used at any instant of the communication. On one

side, it will be possible to have very robust but less efficient modulations schemas like

QPSK ½ for users in the worst conditions within the cell, for instance at the cell edge.

On the other side, very efficient modulations like 64QAM 5/6 will be possible jointly with

the use MIMO 2x2 techniques for users in the best conditions within the cell.

As a result of these scenarios, the average data rates within a LTE cell will be closed to

1bps/Hz in uplink and 2bps/Hz in downlink. In a practical example, when using a channel

bandwidth of 10MHz, it is possible to assume that there will be available a data capacity

of 10Mbps in UL and 20 Mbps in DL.

In addition, LTE offers a powerful platform to implement in the medium and long term,

as long as the standard specifications are developed, some specific functionalities for

professional communications like group calls or management of priorities and

emergency calls.

Thanks to these improvements, railway systems can involve a wide range of data

services that will enhance the safety in the operation, for instance, through CCTV

systems, or the upgrade of current data networks for signalling applications, as well as

enhancing the passenger experience with new on-board Internet services or the

makeover of passenger information systems and multimedia systems. All of them

sharing the same infrastructure and ensuring the adequate quality of service for the

applications requiring the maximum criticality.


3. LTE SYSTEMS DESIGNED FOR

PROFESSIONAL COMMUNICATIONS

Commercial cellular networks like current 4G systems deployed by telco carriers have

not been designed to operate under critical requirements or in extreme situations, where

there are demanding operational parameters like the following:

Fast call establishment.

Maximum availability and resiliency.

Congestion control mechanisms to manage priorities in the access to radio

resources and flexible real-time network resource management.

Emergency pre-emption.

Group communications.

Direct mode communications.

Commercial networks have been deployed to provide overall coverage and service to

many users as possible, maximizing in this way the return on investment and the

profitability to the carrier operator. On the contrary, a professional broadband LTE

system has not been designed to maximize the economic return, but to guarantee

service levels, like data capacity at any moment for certain users, and guaranteeing

the best availability to all the users ever, including when a cell is operating at maximum

capacity, implementing congestion control mechanisms to avoid the collapse of the

system.

Transport systems like railways, metros or tramways are critical infrastructures where

the communication services must be protected and thus, TELTRONIC’s LTE solution

has been specifically designed to cover these needs in their operation, enabling

continuous and resilient broadband communications between train units, ground users

and control rooms.

Key differences between design based on commercial or private systems are depicted

in the next table:


COMMERCIAL LTE SYSTEM PRIVATE LTE SYSTEM

Objective Maximize economic benefit Guarantee service

Coverage Optimized for those areas with

greater concentration of users,

what will mean higher economic

benefits for the operator.

Ensure 100% coverage even in

areas with low density of

population to guarantee the

continuity of the service.

Rail tracks are clear example of

this feature.

Density Many users per km2. Few users per km2.

Congestion Acceptable and tolerated by

users.

Network design and radio

planning to ensure a “typical”

scenario and use.

Unacceptable.

Network design and planning to

guarantee service level in the

worst case and in the most

critical situation.

In addition, availability figures

may have four 9’s.

Broadband data Mainly, applications intensive in

downlink channel like Internet

browsing.

Traffic balance is optimized for

download channel use.

Asymmetric traffic pattern, with

more importance of uplink

channel for applications

involving transmission of

information from trains to

control rooms (e.g. video,

operational information, etc.).

Table 2. Differences between commercial and private LTE systems.


4. ENEBULA, TELTRONIC’S LTE PROFESSIONAL

INFRASTRUCTURE

Evolved NEBULA or eNEBULA is the commercial name of the next generation

TELTRONIC’s infrastructure, that now allows the supply of narrowband TETRA systems,

broadband LTE systems or hybrid TETRA + LTE systems.

It is a digital communications platform designed for PMR users. It allows the integration

of several radio technologies and provides a unified service supporting different

communications needs in the transport sector and specifically in the rail market.

The final design of the LTE system must be adapted to the requirements of every project,

and may vary according to the next aspects:

Data traffic model for the applications to run over LTE. Typically, it is necessary to

establish the average traffic load in the cell, and what is the minimum capacity to

guarantee at the cell edge.

Number of users who will require broadband applications and expected

concentration of users per cell.

Geographical features of the area to cover in order to provide the most accurate

geographic coverage analysis.

eNEBULA System architecture is shown in next figure. It is a flat model with a simple

hierarchy organized in four levels:

User Equipment or UE.

Radio Access Network, called in LTE terminology as E-UTRAN (Evolved Universal

Terrestrial RAN), where base stations or eNodeB (Evolved NodeB) are the key

entities responsible to manage radio interface and provide RF coverage.

Central control node also called Evolved Packet core or EPC. It is organized in

several functional entities that implements the functionality specified by 3GPP

standard specifications:

- Mobility Management Entity or MME.


- Serving Gateway or SGW.

- Packet Data Network Gateway or PGW.

- Evolved Node Controller or ENC.

All these logical entities as well as the rest of elements are configured and monitored

through the Network Management System or NMS.

Service layer, that may be based in solutions provided by TELTRONIC or third party

solutions.

Figure 1. eNEBULA System Architecture.

LTE technology considers the deployment in different frequency bands throughout the

radio spectrum.

In FDD operation mode, there are standardized class bands in different frequency

ranges like 450 / 700 / 800 / 850 / 900 / 1000 / 1600 / 1800 / 2100 / 2600 / 4900 /

5200 MHz

In TDD operation mode, there are standardized class bands in different frequency

ranges like 1800 / 2300 / 2600 / 3500 / 3700 / 5800 MHz

SGW PGW

MME

E-UTRAN RADIO ACCESS

LTE CONTROL NODE (EPC)

ENC

EPC

HSS PCRF

LTE SERVICES LAYER

NMS

VoIP Call Server

Video Servers

Recording Servers

Messaging Servers

Other…

USER EQUIPMENT

eNodeB

eNodeB

Fire

wal

l


For critical deployments like the case of rail sector, it is highly desirable to work in

frequency bands as low as possible since the coverage ranges will be wider. The first

generation of TELTRONIC’s ENBULA system is available in all frequency class bands

under 1 GHz, specifically in standard sub-bands in the range of 700 MHz, between 693

MHz and 803 MHz. TELTRONIC can provide base stations in other sub-bands on

demand to our customer. In this way, we can adapt our equipment to the different

worldwide regulations for the private operation in the public transport systems.


5. ENTITIES IN TELTRONIC’S ENEBULA LTE

SYSTEM

This document has described previously that TELTRONIC’s eNEBULA LTE solution is

composed of four modules: user equipment, LTE base stations or eNodeB, control node

or EPC and external applications. This section describes them in detail.

User Equipment can adopt different form-factors depending on its purpose in the critical

operation. Some examples: smartphone, tablets, embedded LTE modules, vehicular

equipment and of course, on-board rail units compliant with the most demanding railway

regulations.

TELTRONIC’s LTE Infrastructure has been implemented according to 3GPP Standard

specifications and thus it is possible to user COTS devices on it, operating in the

compatible frequency bands. Previous to the operation, it is required to assess the

operation of the new model of user equipment in the infrastructure.

TELTRONIC has already validated several devices to be used on eNEBULA system.

For new models of a device (o new versions, e.g. firmware), TELTRONIC can offer

Validation Services to end customers.

In LTE terminology, base stations are also called eNodeB. All eNodeBs deployed

conform the Radio Access Network or RAN, also called E-UTRAN (Evolved Universal

Terrestrial Radio Access) by 3GPP standard.

eNodeBs are installed in specific physical sites to provide RF coverage to a geographical

area. They coordinate the radio reception and transmission from/to user equipment, as

well as the connectivity through backbone network with control node.

eNodeB

UE


eNEBULA’s eNodeBs have been designed with outdoor form-factor, as shown in next

figure.

Figure 2. Outdoor LTE base stations.

LTE base stations can be provided to operate in any standard sub-band in the range of

700 MHz, specifically in these ones:

B12 – 729-746 MHz in DL and 699-716 MHz in UL






LTE control node is the responsible for routing IP data between base stations and

external IP services. In 3GPP terminology, it is called Evolved Packet Core and it is the

key entity of the LTE core network.

The EPC includes all the entities for the control and routing of IP communications. 3GPP

establishes that the key entities of EPC are the following:

EPC


MME, as the entity responsible to control the location of user equipment in the

coverage cells and to enable the mobility across adjacent cells.

SGW, as the entity responsible to router the user data traffic between eNodeBs and

PGW. It is responsible to create, manage and disable data bearers according pre-

defined rules of quality of service.

PGW, as the entity acting as user data traffic gateway from LTE infrastructure

towards external IP networks implementing backend user services.

In additional to previous entities, the core network of TELTRONIC’s LTE infrastructure

also includes:

ENC, responsible for controlling the access to LTE system and implementing

authorization methods for user equipment, as well as managing the quality of service

policies and priorities in EPC. This entity integrates two key modules: HSS (Home

Subscriber System) for LTE user provisioning and registration, and PCRF (Policy

Charging Rules Function), to define access policies to LTE services.

It also centralizes other control functions like synchronization tasks for all hardware

entities in the infrastructure as well as the collection of statistical information

NMS Server, as responsible module for the network management, configuration of

any equipment, subscriber management, alarms monitoring, etc.

Firewall, as the key door of the system for any kind IP connection from/to external

networks.

Other physical elements required for the installation and operation of the system like

for instance:

- EPC chassis and switches, required to interconnect hardware modules in the

control node among them, as well as to establish connections with base stations.

- Cabinets, power supply sources and cabling.

TELTRONIC’s EPC solution can be configured according to the size of the network

deployed, and it can be supplied as a high available platform, for instance based on

ATCA platforms, or based on single servers where functionality is virtualized.


Figure 3. Form factor of equipment for LTE core network.

Externally to EPC cabinets, but with IP connectivity with it, there may be other server or

applications, conceptually grouped in two categories

Tools for the operation and management of the infrastructure. For instance,

client application of NMS System, and other internal applications used by

TELTRONIC or authorized partners for setting up or upgrade the system like for

instance Remote Software Tools.

Servers executing the business logic of broadband services for LTE subscribers.

Some examples are applications in Control Room, remote databases, servers

providing access to Corporate Intranets or Video Servers.

Applications


6. LTE APPLICATIONS FOR TRANSPORTATION

SECTOR

TELTRONIC’s professional LTE solution can provide unified service for broadband

applications in transportation market:

Figure 4. Application of TELTRONIC’s radio communication solutions in transportation market.

Next sections describe required architecture and features of these applications.

6.1 LTE for surveillance systems (CCTV)

CCTV systems constitute a key element in the rail safety, helping to reduce the response

time in case of incidents, and improving the efficiency in the daily operations, both in the

line exploitation and during maintenance tasks.

Data communications for Signalling applications:

ETCS: Evolution of the current GSM-R systems.

CBTC: Improvements as regards current WiFi systems.

Internet connection for passengers

Load of operational files: Update of data used by Passenger Information Systems (PIS) or on-board multimedia systems

Upload of operational files: information about ticketing, counting of passengers, reports, statistical information, etc.

Surveillance systems in trains and stations


Some of the applicability of these systems are listed below.

Ground surveillance at stations and at critical points along the tracks.

Mobile surveillance for real-time monitoring from Command & Control Centres, for instance from the train cars.

Mobile surveillance for real-time monitoring from train cabin of platforms when trains are approaching the station.

Through the LTE system, these applications will be able to transmit and receive video

signals from and to the trains and Control Rooms.

LTE technology provides an added value to the security and safety in the rail network.

To ensure the safety of the passengers is one of the main challenges during the rail

operations. Moreover, the protection of workers and the facilities against acts of

vandalism, crime and even terrorist attacks, is other of the priorities of the rail operators.

Without undermining the functionality of the infrastructure, it must guarantee the mobility

of thousands of passengers. Hence, it will be essential to adopt safety measures to

protect all the open areas, the accesses to rail infrastructures, point of sales, the trains,

etc.

In this context, CCTV applications used over professional broadband LTE systems,

become in an essential feature. TELTRONIC’s broadband radio solutions will provide

high availability, QoS mechanisms and the possibility to implement redundancy policies

in every single element, and thus being adequate to these kind of surveillance

applications.

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Figure 5. Professional LTE solution for Transportation.

6.2 LTE for ETCS rail signalling applications

ETCS (European Train Control System) is the

security and protection system defined within the

European rail signalling system ERTMS (European

Rail Traffic Management System).

It is mainly used in high speed trains or mainlines with

the aim to provide interoperability between the rail

systems in different countries. This regulation also specifies the wireless communication

system for ERTMS, that must be based in GSM-R technology.

ETCS as signalling protocol, provides critical information for the train driving like speed

limits, movement authorities, etc., and supervises the train circulation. It can be

implemented with different safety levels.

COMMAND & CONTROL

OPERATOR ON-BOARD APPLICATION

LTE CONTROL NODE (EPC)

eNodeB

Data connection with guaranteed bit rate

E-UTRAN


In ETCS Level1, GSM-R system is uniquely used for voice communications. Train-to-

ground communications take place just at certain cases and through track elements like

beacons, circuit systems, etc. In ETCS Level 2, there is a continuous train-to-ground

communication over the GSM-R system.

Due to the coming obsolescence of GSM-R technology, expected by 2025, Europe is

looking into the future and thinking about the next telecommunications system that will

support ETCS signalling standard. LTE is now the best positioned technology to play

this role.

The ERA (European Railway Agency) has already confirmed several aspects of the next

candidate. For instance, future ETCS communications system will be IP-based, as

regards GSM-R which is circuit switched. In that sense, TELTRONIC’s

telecommunication systems, both TETRA and LTE, are fully aligned with that decision.

LTE offers clear advantages as regards current GSM-R, including an efficient

architecture to provide low latencies, and a high data capacity in comparison with the 9.6

kbps provided by GSM-R.

In addition to these features, LTE offers sophisticated quality of service mechanisms

(QoS) to guarantee and apply priorities in the reservation of resources for different

applications without affecting negatively to the resiliency or the security in the network

operation.

Moreover, TELTRONIC’s LTE solution for transportation is ready to include key

functionalities specific for the professional market which will be implemented and aligned

accordingly to the standardization tasks accomplished by 3GPP. Some examples of this

functionality are listed next:

Group calls

Push-to-talk operation

Priority and Pre-emption management

Emergency calls

Significant improvements in the capacity offered by LTE, will allow creating the

foundations of a new communication platform that will support any innovation in ETCS

systems in aspects related to security, operation and added-value services for

passengers.


6.3 LTE for CBTC rail signalling applications

Unlike ETCS is used mainly in short-haul, long-distance

and high-speed trains, the signalling applications used in

mass transit like metros, tramways and light trains, are

known in general as CBTC (Communications Based

Train Control) systems.

CBTC does not indeed constitute a signalling standard, due to each manufacturer has

its own solutions, and they are not interoperable between them. Despite this fact, vast

majority of CBTC implementations in the market are using the same train-to ground

technology: WiFi networks based on IEEE 802.11 standard family. These systems will

support the data communication between the on-board protection equipment and the

wayside elements along the tracks.

WiFi technology could be an option due to cost, easiness of configuration and

commercial availability, however, there are major disadvantages when trusting the vital

communication of a CBTC system to this technology:

WiFi uses non-licensed bands and thus there are a high risk of interferences

between adjacent channels and other networks deployed in the same areas. Thus,

it is very complicated to guarantee availability level since the access to the spectrum

is free and uncontrolled. It is possible to find other users or networks transmitting in

the same frequency bands.

The number of required access points along the track is very high, in general

every 100 or 200 meters, due to the limited transmission power.

Standard family IEEE 802.11 was designed initially for domestic deployment and

mobility is not supported natively by the technology. Thus, it is necessary to

implement proprietary customizations to manage mobility and to reduce the high bit

error rates during transmissions.

WiFi does not support native policies of Quality of Service (QoS). All users compete

for radio resources according to a random access, and there is no way to guarantee

priorities to specific users. Accordingly, WiFi standard cannot guarantee bandwidth

capacity o maximum latencies for critical services.

LTE technology solves all these downsides for the operation of CBTC signalling systems,

and provides other benefits:


Coverage ranges around several kilometres instead of hundreds of meters.

Native support of mobility management: handover times between adjacent cells in

the order of milliseconds.

Advanced mechanisms of quality of service: different radio resources will be

assigned dynamically to different user profiles.

Licensed frequency bands, what minimizes the risk against interferences.

Moreover, the greater data transmission rate will offer flexibility to support the increasing

demand of data transmission for CBTC signalling applications in the new driverless train

systems. This Grade of Automation (GoA) is categorized on three levels:

STO (Semi-automatic Train Operation), where there is a train driver in the cabin

monitoring the operation and ready to apply manual actions if required.

DTO (Driverless Train Operation), where there may be a rail operator in the train but

not necessarily in the cabin.

UTO (Unattended Train Operation), where the train is operated fully automatically,

without any staff on-board.

6.4 LTE for other applications

LTE can also be the perfect radio interface for other applications that helps to improve

the rail operation as well as to enhance security or user services. Next table summarizes

some of them:

APPLICATIONS

Updates in the Passenger Information System (PIS):

Load of files announcing coming stations.

Notification of incidents along the line.

Texts in the information panels on board.

Texts in the information panels at stations.

Etc.


APPLICATIONS

Update in on board multimedia systems:

Load of files for Infotainment systems.

Load of advertisement files.

Etc.

Download of operational files (from train to control room):

Information about ticketing.

Information about passenger counting systems.

Statistical information about alarms and incidents on-board.

Statistical information about the use of the radio network and reports.

Etc.

Table 3. Examples of other application using LTE technology.

All of these applications (and others) are not really vital applications, but they help to

improve the efficiency and the use of the railway infrastructure, improving the punctuality

ratios, resiliency, optimizing the travel times and increasing the line capacity in terms of

number of passengers, and thus maximising the benefit during rail operation.

To achieve all of these objectives, the availability of the LTE system is essential, enabling

a remote and dynamic management of previous applications from the Control Centre.

QoS mechanisms provided by broadband LTE technology, and particularly the features

provided by TELTRONIC’s eNEBULA solution, will allow to allocate the necessary data

bandwidth in a manner that critical and vital applications like signalling have guaranteed

resources to the operation.

.


7. KEY DIFFERENTIATORS OF TELTORNIC’S LTE

SOLUTION

Some of the key differentiators of TELTRONIC’s eNEBULA LTE solution are

summarized in the next table:

CHARACTERISTICS BENEFITS

TELTRONIC is the owner of its LTE technology, without dependency from third parties either partners.

Security of supply and continuity in the solutions provided.

Total control over the design and the manufacturing cycles.

Flexibility and customization of TELTRONIC’s solutions.

LTE solution oriented to private networks with specific functionality for PMR markets, specifically for transportation.

Availability of requested capabilities for mission critical sectors like priority management, pre-emption management, group calls, etc.

Native integration with existing TELTRONIC’s TETRA systems.

Infrastructure management through a single and easy-to-use application.

Service delivery to end-user over the most convenient radio interface thanks to Communications Manager.

Unified and multi-service system. Economic profitability and viability.

Unified Network & Subscriber Management System for TETRA and LTE equipment and users.

Set of tools for operating and maintaining deployed systems.

Scalability Ability to deploy any kind of system: from small networks for local areas to national networks.

Mobility Radio technologies especially adapted to mobile environment.

Redundancy for any kind of elements in the solutions.

Maximum availability and resiliency.

Encryption services. Data security and integrity.


CHARACTERISTICS BENEFITS

Radio equipment especially designed for railways markets.

Compliancy of railways norms for on-board systems like EN 50155 or EN 45545.

Professional Mobile Radio (PMR) services: group calls, priority management, emergency calls, etc.

Specific functionality for transportation.

Technologies ready to grow and expand its functionality.

Integration of future services. Platform ready to evolve towards new standard versions.

Wide experience in the deployment of communication systems for railway sector.

Technical expertise and large number of resources for the deployment of new transport projects, fulling specific requirements.

Table 4. Characteristics and advantages of TELTRONIC’s LTE solution.

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