Download - 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.
PMR Standard Interfaces
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.
PMR Standard Interfaces
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.
• An outside vendor provides critical services to the network operator through application servers installed in the provider network architecture.
PMR + LTE
PMR + LTE
Private LTE and PMR offered by the network operator
LTE Radio Interface
TETRA Radio Interface
User Device
Communications Manager
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PMR + LTE
Private LTE and PMR offered by the network operator
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
• An outside vendor provides critical services to the network operator through application servers installed in the provider network architecture.
PMR + LTE
Aitor Sanchoyerto MartínezProject Engineer in Critical Emergency [email protected]
Gracias !Mila esker denori !Thank you!