ROMANTIS Cellular Backhaul
Cost-effective backhaul solution for African mobile operators
Cellular Backhaul via Satellite
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Cellular Backhaul provided most of the
growth in SCPC segment last years
Backhaul via TDMA networks is getting
more and more popularity because of
penetration to rural areas with low and
unpredictable cellular traffic
Cellular Backhaul is the most capacityhungry application, requiring 512-1024
kbps per site
Mobile providers require cost-effective
backhaul solution to perform USO
obligations, that is now part of new
3G/LTE licenses in many countries
African and Asian markets are the most
perspective regions for Cellular
Backhaul, because of actually low
penetration
TDMA Cellular Backhaul
1400
COMSYS VSAT REPORT, 2012
1200
TDMA sites in service
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1000
800
600
400
200
0
2007
2008
2009
2010
Requirements
o Small-to-medium size star-topology network
with local Gateway
o Support either for IP backhaul and for 2G E1
A-bis protocol
o SCPC dedicated connectivity for developed
sites with intensive traffic and TDMA backhaul
for undeveloped sites and USO
o Independent infrastructure with in-country
Hub, that should be located within specific
region
o Cost-effective solution with inexpensive miniHub and flexible TDMA/SCPC terminals
o Easy to install and operate hardware with
remotely managed operations
ROMANTIS UHP
Provider-class VSAT technology
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Any modes and topologies: SCPC,
TDM/SCPC, TDM/TDMA, Hubless TDMA
DVB-S2 VSAT technology with LDPC coding
in TDMA channel
Innovative TDMA protocol with proven
efficiency of 96%
Ultra-low latency VSAT system with roundtrip delay about 570 ms
Support of VLAN, multi-level QoS, TCP
acceleration
Fast network startup — network is ready
for use in less than a minute
Low power consumption allows using
terminals with alternative power sources
Compatible with C, Ku and Ka-band
Parameter
Performance
TDMA datarate
Up to 6.5 Mbps
SCPC datarate
Up to 86 Mbps
Supported carriers
Modcode
Mode of operations
Topologies
Network size
Interface
QoS
Management
Power
SCPC, TDM, TDMA
QPSK, 8PSK, 16APSK (LDPC)
HUB, Terminal, Mesh Gateway
Point-to-point, Star, Mesh
Up to 7812 terminals
LAN (10/100), E1 (A-bis)*
3 levels
NMS, Telnet, HTTP, SMTP, TFTP
-24/-48 VDC (10W)
* With external RAN optimizer
SEVIS
Cellular Optimization
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Cuts Backhaul Bandwidth on A.bis/A-ter
by 50% or more
Lowers network OpEx and CapEx
Converts traffic from TDM to more
efficient packet-based IP
Suitable for both satellite and terrestrial
connections
Voice quality and data services (GPRS,
EDGE) are preserved
Supports 2G, 2.5G and 3G Networks
Optimization for any codec: HR, FR, EFR,
AMR
Optimizes all GSM protocols: A.bis, A-ter
Interoperability with equipment from
major GSM switch vendors
Fully compatible with Romantis UHP
Parameter
Value
Number of E1 ports
4 (16)*
Max. number of TRX
До 48 (192)*
2G optimization
A-bis, A-ter
3G optimization
Iub, IP and CDMA
Data
Synchronization
LAN ports
Management
Power
Mechanical
GPRS, EDGE and HSDPA
Internal or GPS
2 (10/100)
Telnet, HTTP, SMTP, TFTP
-48 VDC , 22W
1U 19”
SCPC
TDMA
TDM
Satellite Backhaul Network
E1 / IP
UHP
BTS / Node B
TDM/TDMA mode
E1 (A-bis)
UHP HUB
BSC/RNC
E1 / IP
UHP
TDM/SCPC mode
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BTS / Node B
Hub transmits aggregated TDM carrier to all network terminals
Terminals transmit via shared TDMA channels or may use
dedicated SCPC link when reasonable (heavy traffic etc)
The same network provides backhaul for 2G/3G/LTE traffic
Satellite may provide broadband connectivity for other colocated equipment (Wi-Fi, Broadcasting, maintenance)
Savings of dynamic bandwidth assignment
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Aggregation of traffic of several Base
Stations within shared satellite trasport
allows reducing overall bandwidth
consumption
The maximum effect of 40% could be
achieved when connecting >10 BS with
low traffic (8-16 TCH per BS)
Such savings remain substantial (10%25%) even for sites with essential traffic
(> 24 TCH in BC)
The resource disposed due to such
statistical multiplexing can be used for
data transmission and/or to increase
network throughput during peak hours
Based on Erlang B calculations for Pb=2%
Bandwidth savings
within aggregate backhaul
100%
8 channels/BTS
16 channels/BTS
90%
24 channels/BTS
80%
70%
60%
50%
2
4
5
6
7
8
9
10
Number of BTS (Node B) within VSAT Network
SATELLITE CAPACITIES
INTELSAT 22
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Provides capacity for growth over Africa, the Middle East and Eurasia
Wide coverage and accessibility of European teleports
High-power transponders allow using low-cost, small-aperture terminals
Ideally suited for Cellular Backhaul networks
SATELLITE CAPACITIES
Express AM8
o The newest satellite of Russian
Satellite Communications Company
o Provides capacity for growth over
Africa, the Middle East and Europe
o Wide coverage and accessibility of
European teleports
o High-power transponders allow
using low-cost, small-aperture
terminals
o Ideally suited for Cellular Backhaul
networks
o Available in 2013
Contact us
Europe, Middle East & Africa
Americas & South-East Asia
Russia & CIS
Romantis GmbH
Lilienthalstraße 5d
12529, Berlin-Schönefeld, Germany
T: +49-30-565-90-4812
F: +49-30-565-90-4885
Romantis, Inc.
6600 Trans-Canada Highway,
Suite 750, Pointe-Claire (Montréal),
Québec
Canada H9R 4S2
T: +1-514-695-8728
F: +1-514-697-0186
Romantis OOO
Shchipok 2,
115093, Moscow, Russia
T/F: +7-495-228-00-59
W: www.romantis.com; E: info@romantis.com