Transcript TETRA over ETHERNET / IP Solution Ignacio Callen Deputy Sales Director TELTRONIC S.A.U. 1.- INTRODUCTION.

TETRA over
ETHERNET / IP Solution
Ignacio Callen
Deputy Sales Director
TELTRONIC S.A.U.
1.- INTRODUCTION
Introduction
Since 1974 dedicated to the design and manufacturing
of professional radio communication equipment and
systems.
Since 1996, Teltronic belongs to the IBV Corporation.
IBV Corporation
figures (year 2003)
IBV Corporation is owned 50% by the
BBVA bank and 50% by the power
utility IBERDROLA
Annual turnover
US $1,2 Billion
10672 employees
teltronic, 2004. all rights reserved
IBV Corporation
IBV Corporation
SERVICES
INFO.TECH.
Socintec 93,1% Azertia 100%
GUP 55%
Landata 100%
IC Móviles 100%
NEW TECH.
ELECTRONICS
E-BUSINESS
Gamesa 31,78% Rymsa 65,99%
Mattio 100%
Autocoa 91,68% Teltronic 100% Shopnet 33,4%
Moddo 24,2%
Elbasa 100% MobileChannel
Evident
GH 78,52%
Ydilo
Workcenter
I-network
Fondos
General Data
Headquarters in Zaragoza (Spain)
Factory: 8000m2.
Multilayer PCB technology.
SMT manufacturing with optical
centring and automatic testing.
Production Capacity: 45.000 terminals
per year
teltronic, 2004. all rights reserved
Products
TETRA
TETRA Portfolio in the market
• TETRA Infrastructure (Nebula).
• Mobile terminals with capability of incorporating
internal GPS or GSM modules.
• TETRA Dispatchers.
• Special Control Units for motorbikes / trains.
• Command & Control
Centers
Frequency bands:
350-370 MHz / 380-400MHz / 410-430MHz
450-470MHz / 806-870 MHz
teltronic, 2004. all rights reserved
2.- TETRA over
ETHERNET / IP
TETRA over Ethernet / IP
1.- Different Tetra frames sent through the IP networks (I).
• Communications between the TBS and SwMI can be
shared as three planes:
• C-Plane: Tetra Control Plane.
(Allows call establishment, Send SDS, Send Status,…,
in fact all Tetra application actions.)
• U-Plane: Tetra User Plane.
(Codec ACELP Tetra voice).
• M-Plane: Maintenance Plane.
(Allows the Network owner access to the Tetra
system with the standard IP network tools for monitoring)
TETRA over Ethernet / IP
1.- Different Tetra frames sent through the IP networks (II).
SwM
I
TBS2
Ethernet
SWITCH
IP Network
U-Plane
TBS1
IP Network
Ethernet
SWITCH
Ethernet
SWITCH
C-Plane
M-Plane
TETRA Frames in NEBULA
U-PLANE
M-PLANE
Maintenance & Control
NTL
SNMP
TUP
UDP
FTP HTTP Telnet
TCP
C-PLANE
L3
M&C
NTL
UDP
IP
Ethernet
USER PLANE:
•
Voice calls
•
Circuit data
MAINTENANCE
Plane
•
Software Upgrade
•
Configuration
•
Monitoring
CONTROL Plane
•
Tetra control
signalling route
•
Packet Data
•
Status / SDS
TETRA over Ethernet / IP
2.- Synchronous links working together with asynchronous networks
• Most communication networks use Synchronised Links,
so we have to think of using these links.
• Routers are needed for connecting the node with the
remote sites by synchronised links.
SwMI
Router
TBS1
TBS2
Ethernet
SWITCHES
IP Network 1
Synchronised Router
Link as E1
TBS3
Ethernet
SWITCHES
IP Network 2
TETRA over Ethernet / IP
3.- Aspects of TBS working over IP networks
If we want to connect the TBS over IP Backbone we need
to assume the following conditions:
• TBS has to have implemented all Tetra LMAC inside
and it is recommended to have all Tetra Layer 2.
•LMAC is synchronised on the Air Interface, so it is not
possible to be asynchronous through IP Networks.
•All Tetra Layer 2 is involved in low level Tetra handshake,
so it is interesting to be implemented inside the TBS this
Layer to minimise the timing.
TETRA over Ethernet / IP
All TETRA Layer 2 is implemented inside NEBULA TBS
CMCE
MM
SNDCP (PDP) IP
Circuit Mode
Control Entity
Mobility
Management
SubNetwork Dependent
Convergence Protocol
LAYER 3
BLE
Maintenance
&
Control
Base Link Entity
(C-M-U) PLANE
LLC
ETHERNET
Maint/Control
TMA-SAP TMB-SAP TMC-SAP
UMAC
LAYER 2
TMD-SAP
TMV-SAP
LMAC
HARDWARE RF
Physical Layer
TBS
TETRA over Ethernet / IP
TBS must perform its own synchonization system
SwMI
TBS2
Ethernet
SWITCH
TBS1
Ethernet
SWITCH
IP Network
IP Network
Ethernet
SWITCH
TETRA over Ethernet / IP
4.- Routing and switching between different elements
• New concept is introduced in this type of Networks. There is not
a central matrix present where all communications are switched,
as in the case of hardware circuit matrix.
• Now the packets are sent through the IP backbone to the
destination IP address, so for this reason it is not necessary to go
through only one centralised element.
• Routing concept takes place when the packets sent by a Site are
going to the Node. It is necessary to assign different IP
subnetworks for Node and Sites.
• Switching takes place when the packets are directly sent to a
destination address through different networking elements.
TETRA over Ethernet / IP
5.- Cases over different IP networks (I)
It is possible to use two different standard Network types
to transport Tetra information:
•Layer 2 Networks. Ethernet Level, (usually small Networks
or in the same physical area, like Airports).
• VLAN.
• WLAN.
• LAN.
• Elements with Bridging capabilities.
•Layer 3 Networks. IP Level, (Large Networks, like corporate
governments Networks).
• VPN.
• Elements with Routing capabilities.
TETRA over Ethernet / IP
5.- Cases over different IP networks (II)
IP Network
IP Network
Government
LAN
TBS
Wireless LAN
CITY A
Communications
Building
TETRA
SYSTEM
CITY B
TETRA over Ethernet / IP
5.- Cases over different IP networks (III)
Practical Case: Two Routers using the IRB (Integrated Routing and
Bridging) capability.
SwMI
TBS1
Ethernet
Level 2 (MAC)
Port 1 Cisco
Ethernet Level 3 (IP)
Corporative Network
Connection
Port 0 Cisco. IP: 40.0.0.2
Ethernet
Level 2 (MAC)
Port 1 Cisco
SWITCH
MAINTENANCE PC
ROUTER “B” CISCO 2600
WAN Link between CISCOs
FRAME RELAY with 2 DLCI:
64 Kbps for IP Tetra Network
1976 Kbps for Goverment
ROUTER “A” CISCO 1600
TETRA over Ethernet / IP
6.- IP Networks as backbone advantages
• Use the corporate IP Networks to transport the Tetra
signalling between the TBS to the SCN.The customer does not
spend more money in install synchronous Links.
• Only 64kbps per carrier needed.
• Easy maintenance with standard tools to manage the Network
properly.
• High redundancy achieved thanks to the Ethernet
connectivity.
TETRA over Ethernet / IP
7.- Security in IP based networks
• IP Security is one of the main problems when we talk about the
IP Networks, because….
•According to a Forrester Research, 60% of attacks are
through Internet remote access.
•But, IP Backbone, should never be connected to the global
Network.
•Only the Network Management System could be
connected to other Networks, but access shall be protected.
3.- ADVANTAGES OF
ETHERNET / IP BASED
TETRA NETWORKS
Advantages of ETHERNET/IP based TETRA networks
1.- Compare alternative infrastructure design
Features
Backbone type
Network Dimension
Transport and maintenance
Timings
Synchronisation Requirements
Gateways
Ethernet / IP
Ethernet Switch
Full scalability
TCP/UDP, FTP, HTTP, Telnet
Voice Packet 7.2 us
Ethernet is Asynchronous
Most of interfaces to IP
Circuits
Circuit Matrix
Matrix size dependent
Proprietary protocols
Voice Packet 6.75 ms
Circuit Systems are Synchronous
Dedicated interface development
Advantages of ETHERNET/IP based TETRA networks
1.- Compare alternative infrastructure design



SCN (Switching Control Node)
SBS (Site Base Station)


CNC (Central Node Controller)
SNI (Site Node Interface)
BSR (Base Station Repeater)
Advantages of ETHERNET/IP based TETRA networks
2.- Reliability and resilience factors:
•
•
•
•
•
Total Redundancy. All paths and elements can be duplicated.
Easy to solve degraded modes.
Higher Security Levels inside IP world.
Non Synchronisation, Non timing critical system.
All modules are intelligent. Distributed Packet Switching Matrix.
Advantages of ETHERNET/IP based TETRA networks
3.- Data Transmission and Management Transmission characteristics
• All data is over Ethernet / IP.
• Transmission: LAN devices can be used to carry the signals:
– Switches / Bridges / Routers...
– Over WLAN, VLAN, MPLS, UTI...
• Management over standard IP services :
– Different planes are defined to perform different needs.
Advantages of ETHERNET/IP based TETRA networks
SUMMARY (I):
• With an IP backbone it is possible to build a Tetra system, Tetra
over IP
• Using Standard protocols
– UDP/TCP/IP, FTP, Telnet, HTTP, SNMP
• Using Standard Elements
– Switches, Bridges,Routers
• Providing standard network connectivity
– LAN,VLAN,WLAN,VPN
• Considering
– BTS synchronisation
Advantages of ETHERNET/IP based TETRA networks
SUMMARY (II):
• Bringing Key Advantages
– Resilience
– Bandwidth
– Security
• Users advantages:
– Network Owners:
• Networking standard systems use: WLAN, LAN connectivity.
• Lower cost for buyers and Lower cost for maintenance.
– Network Users:
• Faster call establishment. 200ms in Group Calls.
(For Intersite calls are the same time than in the same Site)
4.- SOME REFERENCES
Some References
Civil Protection and Disaster Management.
Interior and Justice Ministry of Venezuela
Some References
Civil Protection and Disaster Management.
Interior and Justice Ministry of Venezuela
Some References
Civil Protection and Disaster Management.
Interior and Justice Ministry of Venezuela
Some References
KPN Integrated & Managed Solutions / Rotterdam Harbour
(Netherlands)
Some References
KPN Integrated & Managed Solutions / Rotterdam Harbour
(Netherlands)
Nº of daily calls
Voice scenario:
16000
14000
•24 hours of High traffic
•10.000 group voice calls every 12000
day
10000
•300.000 calls every month,
8000
from April 03
6000
•4 erlangs of traffic
•100% availability
4000
2000
0
Some References
TMB: Transportes Metropolitanos de Barcelona (Spain)
Some References
TMB: Transportes Metropolitanos de Barcelona (Spain)
TMB BARCELONA
SAE (buses with
GPS)
Data scenario:
•GPS info sent by SDS
•100.000 SDS calls every
day
•3 millions of SDS calls
every month, from 2002
•100% availability
Nº of daily calls
140000
120000
100000
80000
60000
40000
20000
0