Coexistence or Convivence PMR-LTE Technology

+ PMR – Narrowband Radio

+ LTE – Broadband Radio

Coexistence or ConvergenceZamudio 27 Junio de 2.014

Public Safety Networks

Public Safety Network Requirements

Key Features and Facilities of a Public Safety wireless network:

Availability (99,9 % - 99,9%)

Coverage: Wide geographic coverage

Control: prioritized access , reserve Capacity

Reserve Capacity

Security: Encryption and authentication

Low latency: Planting too fast calls

Multi-organization: management entities

Redundancy failure: multiple levels of redundancy

Mixed traffic: transport of different types of traffic (voice, data, images)

Handover without interruptions: Continuity in communication

Terminals: Rugged high power emergency conditions

Communication Terminal to Terminal

Required for new Network Public Safety Services:

The existing Public Safety Network are perfect for establishing voice communications secure, fast and clear but these cannot deliver enough data throughput to meet the new demands from professional radio users

• Real-time transmission

• Low latency

• Medium to high quality

• Capture, send and receive images

Video & Images Transmission

• Vehicle registration plate reader

• Fingerprint reader

• Facial Recognition

Operational

Applications

• Maps & building plans access

• Multi-vital sign data, real time patient status Exchange.

• Environmental sensors.

Exchanging critical information

Public Safety Network New Services

Why PMR and LTE ?

PMR KEY SERVICES

Key Services and Facilities, which clearly differentiate PMR from other wireless technologies.

Group Call (commonly called 'all in formed net' and 'talk group call')

Pre-Emptive Priority Call (Emergency Call)

Call Retention

Priority Call

Busy Queuing

Direct Mode Operation (DMO)

Dynamic Group Number Assignment (DGNA)

Ambience Listening

Call Authorized by Dispatcher

Area Selection

Late Entry

Voice Encryption

PMR Standard Interfaces

Air Interfaces (1 & 2)

• To utilize the air interface, application developers often use the Peripheral Equipment Interface (PEI) or a manufacturer specific interface on radio terminals for applications.

Peripheral Equipment Interface (4)

• This interface standardizes the connection of the radio terminal to an external device, and supports data transmission between applications resident in the device and the connected TETRA radio terminal.

Remote Dispatcher Interface (5)

• As this interface has not been standardized only TETRA manufacturer specific interface specifications are available to support the many voice and data applications requiring access to TETRA infrastructures.

PSTN/ISDN/PABX (6)

• This standardized interface enables TETRA to interface with the PSTN, the ISDN and/or PABXs as required by both user organizations and application developers.


Inter-System Interface (7)

• This standardized Inter-System Interface (ISI) allows infrastructures supplied by different TETRA manufacturers to inter-operate with each other allowing interoperability between two or more networks. There are two methods of interconnection in the standard, one covering information transfer using circuit mode and the other using packet mode. Application developers are expected to utilize this interface when it becomes available on TETRA networks.

Network Management Interface (8)

• As this interface has not been standardized only TETRA manufacturer specific interface specifications are available to support the many network management applications requiring access to TETRA networks.

Application developers

• Because of the size and success of TETRA, as well as the many applications required by traditional PMR user organizations, there are a wide variety of applications available from numerous application providers. Further details can be found on the TETRA Association member's page (members). Once the membership list has been accessed, use the left hand menu to link to application providers.


LTE FOR ENHACED SERVICES

Existing PMR technologies cannot deliver enough data throughput to meet the new demands from professional radio users

For the user, VIDEO TRANSMISSION is the main reason for broadband in PMR.

Most emergency services used PMR to establish their voice and short message. They want to recoup the investment made in the communications infrastructure.

The organizations use Public Mobile Network to transfer multimedia data between the mobile resources and the headquarter.

Most of multimedia communications are unencrypted and contain sensitive information. Do not have any priority, are not considered emergency communications by mobile operator

In emergency situations, the mobile networks are congested preventing establish communications between mobile resources and the headquarter.

3GPP LTE Release 12 and beyond

3GPP LTE Release 12 and beyond

Analog VHF to digital voice

Digital voice

Tetra,P25,Tetra, DMR …

All-IPconvergedvoice and datawith enhancedVolLTE

Messaging andPacket dataintegrated withdigital voice

Private network data overlay

Tetra EnhancedData Service (TEDS)

LTE overlay,PMR-over-LTE devicesPublic LTE for noncritical services

Mission-critical voicenetworks mostlyswitched off

1995 2000 2005 2010 20202015 2025

Convergence to LTE

Convergence to LTE

LTE has been chosen as a single nationwide public safety broadband network in USA beyond the current P25 system

TCCA/TETRA community has also settled on LTE as the next step beyond the current TETRA system

Unprecedented opportunity to unify the global public safety footprint

Currently, most organizations critical and emergency services implemented PMR-based technologies such as TETRA, TETRAPOL, P25, solutions etc.. Such infrastructure supporting voice services with high reliability but limited resources for data services. The evolution to the next generation of critical networks with higher capacity arises in two areas: the development of PMR technology to incorporate more data capacity, or the adoption of commercial technologies such as LTE with consequent adaptations.

As a general conclusion, it can be suggested that both the industry and standardization bodies have LTE in mind for the deployment of critical services and emergency of new generation. However, currently there are a number of shortcomings in relation to the safety criteria and QoS in compassion networks dedicated PMR type, and a future "professional LTE" poses with certain features such as advanced resource management, location-based services or services "push-to-talk".

In turn, there is still no solution to be imposed in view of the management of multimedia sessions over IP connections on LTE. In this sense, the 3GPP is working to provide the IMS system features needed in certain critical services, such as advanced QoS management priorities based on user / LTE devices.

Conclusions

COEXISTENCE PMR + LTE

PMR + LTE: A winning combination

TETRA

Managing the critical services: Voice and messages.

Acting as “control channel” for the integrated network.

Can still offer data services by using multislot operation.

Full availability in case of 3G/4G network failure or congestion.

Full coverage.

Non-infrastructure operation modes.

LTE Technology

In public LTE network acting as an network for the non-critical data demanding services (mainly enhanced services) with additional advanced management features based on PMR.

In privately owned LTE networks, data services can become critical by adding a PMR-grade layer to the LTE technology.

PMR + LTE

Public LTE for noncritical services

• No critical services offered by the LTE network.

• Critical Services offered by the PMR network.

• The PMR users have access to critical services through its PMR device

• LTE users need to install an application to access critical services

• Users LTE and PMR users are connected by an IP architecture that provides critical services to LTE users and advanced services to users PMR.

Public LTE for nocritical services

Public LTE for nocritical services

Critical services over Public LTE

• Critical services offered over LTE network.

• Critical Services offered by the PMR network.

• The PMR users have access to critical services through its PMR device

• LTE users need to install an application to access critical services

• Users LTE and PMR users are connected by an IP architecture that provides connectivity to LTE users and advanced services to users PMR.

• An outside vendor provides critical services to the network operator through application servers installed in the provider network architecture.

PMR + LTE

PMR + LTE

Critical services over Public LTE

Media Plane

GEGW

LTE ACCESS

NETWORK TETRA

NETWORKe2m2e

Netw. Func.

PCRF

TD-EGS

GERYON

Media GW

MRF

LRF

GERYON IMS domain

TD-TMM

TD-SMM

TD-EGS TD-IMM

GERYON

Terminals

GEMS

3PCC

ASTAMS

ESMM

Group

Call

PMR Grade

Service Enablers

PTTFleet

Control

Group

Messaging

SMM

Emergency

Call Controller

Advanced

Service Logic

RCMPer user QoS

Feedback

QoS Mapping

and RemarkingTMM

Dispatch

Threatened

citizen

“Red Button”

Citizen

NG112

PMR officer

LTE

Local

ASs

GERYON

Security GW

NG112

IP network

IMS

emergency-related

standardised ASs

LRFLocal

CSCFs

LTE

TD-EGS

PMR officer

P-CSCF I-CSCF

S-CSCFE-CSCF

HSS XDMS

Presence

Server

Resource

List

Server

Conference

Server

PoC

Server

Group

Messaging

Private LTE and PMR offered by the network operator

• Critical services offered by the network operator.

• LTE contributes with the maximum throughput.

• The PMR and LTE users have access to critical services through the network operator.

• Only a terminal for all of the critical services.

• Application Servers.


PMR + LTE

PMR + LTE


LTE Radio Interface

TETRA Radio Interface

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PMR + LTE


GEMS and IMS Emergency Related AS Standardised

Convergence to LTE

• All-IP converged voice and data with enhanced VolLTE

• Mission-critical voice networks mostly switched off.

• Only a terminal for all of the critical services.

• IMS Emergency Related AS Standardised


PMR + LTE

Aitor Sanchoyerto MartínezProject Engineer in Critical Emergency [email protected]

Gracias !Mila esker denori !Thank you!