3G Offload

discover design deploy manage

Yudhistira Sutjipto
Presales Manager of 3DNetwork Indonesia

11 |© 2010 3D Networks. All rights reserved.
| © 2010 3D Networks. All rights reserved.

Carrier grade wireless LAN for 3G offloading
• Network Component (radio access, radio backhaul and wireless management system) by Altai
– Altai A8 Super WiFi Base Station
– Altai A8-Ei Super WiFi Base Station
– Altai A2 WiFi Access Point/Bridge
– Altai C1 Super WiFi CPE
– Altai Wireless Management System (AWMS)
• Charging and offload system component (authentication; authorization and accounting
function) by ANTLabs.
– ANTlabs Service Selection Gateway (SSG)
– ANTlabs Tru’Auth Radius System (Tru’Auth)
• Installation, integration & maintenance by 3D Networks

2 | © 2010 3D Networks. All rights reserved.

Network Component
• Altai A8 Super WiFi Base Station
– Extended coverage in a Non-Line-of-Sight (NLOS) environment
– Dual-diversity advanced Smart Antenna Technology to provide flexible 90 to
360-degree coverage
– Multi-radio platform to maximize both uplink/downlink performance and
access redundancy
– Backhaul resilience and 1+1 protective switching
– Adaptive interference control to mitigate the surrounding interference effects
– Supports real-time applications such as VoIP, video-streaming and interactive
gaming with minimal latency
– Standard 802.11b/g access (802.11n Q112)and 802.11a backhaul
– Fast Ethernet or integrated 802.11a wireless backhaul
– Flexible antenna deployment for various site conditions
– Remote configuration through the Altai Wireless Management System
(AWMS)


Network Component
• Altai A8-Ei Super WiFi Base Station
– Same base station unit as of the Altai A8 but with integrated multi-beam antenna array all
in one chassis
– A8-Ei multi-beam antenna array provide up to 5 times the range and 20 times the per site
coverage as traditional access point.


Network Component
• Altai A2/A2e WiFi Access Point/Bridge
– Multi-operating modes allowed: AP, bridge, repeater mode or CPE
– 2 x 2 MIMO for both 2.4GHz (802.11bgn) and 5 GHz (802.11an)
radios
– IP-67 rated carrier grade 802.11b/g/n AP for both outdoor and
indoor applications
– Increase system capacity under the coverage area of A8 Super WiFi
Base Station
– Fast Ethernet or 2 x 2 802.11an wireless backhaul
– PTP and PTMP bridging with built-in dual polarized panel antenna
– Light weight with built-in lightning protection
– Easy installation & web-based management


Network Component
• Altai C1 Super WiFi CPE
– Features built-in for carriers including per client/VAP bandwidth
control, remote web-based management and client performance
statistics
– ±45° cross-polarized patch antennas are optimized to match with
the Altai A8 /A8-Ei antennas. (provides 3 dB more gain as
compared to other V-H polarized CPEs)
– High performance antenna with 20 dB front-to-back ratio (5 dB
better than others in directional transmission)
– IP55 standard for direct outdoor installation
– 8-level LED for easy alignment in the strongest signal direction
– Increase signal strength for both NLOS and LOS coverage areas


Network Component
• Altai Wireless Management System (AWMS)
– Centralized management of network equipment
– Automatic BTS/AP detection and provisioning
– Template-based multiple BTS/AP configuration
– User-friendly graphical interface with network map
– Real-time network monitoring and proactive fault handling
– Inventory and connection status
– Multi-layer security management
– Performance monitoring
– WiFi CPE management
– WiFi client association reporting
– Remote firmware upgrade


Charging and offload system component
• ANTlabs Service Selection Gateway (SSG)
– Support multiple authentication mechanisms to fit different business requirements and
deployment scenarios (802.1x Authentication)
– Authorization, providing a suitable level of “service” for the given user (after
authentication). Offer differentiate service plans to tap on the ability of different users to
pay for services such as :
• User provisioned routed IP.
• Upload bandwidth rate limit.
• Download bandwidth rate limit.
• Firewall rules.
– Accounting - based on logged in duration and the amount of traffic (input / output octets
and packets).


• ANTlabs Service Selection Gateway (SSG)
– Traffic/Service Management - allows the service provider to offer dynamic service plans
that can be changed on the fly to meet the specific needs of the user
• Volume Prepaid and Fair Use
• Multi-tier QoS with bandwidth guarantee
• Application-based traffic prioritization
– Built-in Anti-DoS and anti-SPAM features to defend itself against intentional and
unintentional malicious users.
– Provides scalable capacity, starting from 500 concurrent devices up to a maximum of
10,000 concurrent devices.


• ANTlabs Tru’Auth Radius System (Tru’Auth)
– Template-based profile/ account type definitions, such as
• Single use time-based and volume-based prepaid accounts.
• Recurring time-based and volume-based prepaid accounts.
• Day and time restricted access accounts.
• Post-paid accounts
– Service Management Features :
• EAP-SIM SIGTRANS interface - interface directly with the HLR for EAP-SIM authentication.
• 802.1x Support
– Logs & Reports
• Subscriber Dashboard.
• Accounting Log.
• Online Users Log.
• Failed User Login Log.
• Usage Summary
– Extendable via Application Programming Interface (API)


• Jakarta : dense-urban area – commercial area. The building heights range from 5 floors to over
30 floors. Buildings are made of concrete materials with large building blocks.


Core Network

Application Server
Service Controller

Backhaul A2 (bridge)
A8 when placed inside provides
coverage to most indoor areas
Access
A2 (repeater)
A2 (pico)
Pool

Hotel rooms C1 (CPE-AP)
Garden IP-WAN

A8 provides direct coverage to
guess rooms from both sides
A8 Lobby areas Shopping mall
C1 extends signal to
2.4 GHz indoor
5 GHz 12 | © 2010 3D Networks. All rights reserved.

A2e WiFi
Bridge
 2 to 3 A2e Access Points for
each floor zone coverage
with stronger penetration
 Input end of the switch
A2e - High Floor
connect to a A2e WiFi
Bridge which can establish
A2e - Middle Floor
5 GHz radio bridge as
backhaul link
A2e - Low Floor


• A8 will be used for primary outdoor coverage. (horizontal beamwidth : 70-degrees and vertical
beamwidth : 12-degrees)
– NLOS coverage radius of 350 to 500 m across the sub-urban areas where the buildings are
relatively low-raised
– Dense-urban areas with high-raised buildings, the coverage is highly dependable on the
building and street structure, a 250 m NLOS coverage radius along a street.
– Outdoor open areas such as park, A8 can provide a near LOS radius of up to 1 km or more

Environment Coverage Radius (r) Coverage Area (2r2) No. of A8/ km2

Open area (near LOS) 1000 m 2 km2 0.5

Rural (NLOS) 500 m 0.5 km2 2

Sub-urban (NLOS) 350 m 0.25 km2 4

Dense-urban (NLOS) 250 m 0.125 km2 8


• A8 base station has both a wired Ethernet port and a 5 GHz wireless backhaul for connection to
the backend network.


• A8-Ei can be used for outdoor coverage instead of A8 in the following circumstances:
– The maximum target coverage radius exceeds that of the A8 or the coverage areas are in long sector
shape, e.g. along a street, airbase coverage, long range wireless DSL.
– Coverage to a remote discrete area separated by highway or sea at distant away exceed that of A8, e.g.
island, offshore oil refining telemetry, coverage for tourist boats at middle of a lake
– Higher link budget is desired where higher received signal strength is necessary, e.g. indoor penetration,
support VoIP
– Larger site coverage area at the same user capacity than that of A8 is desired, e.g. rural residential area
with large footprint and low population density

Environment Coverage Radius (A8-Ei) Coverage Radius (A8)

Open area (near LOS) 1700 m 1000 m
Rural (NLOS) 800 m 500 m
Sub-urban (NLOS) 500 m 350 m
Dense-urban (NLOS) 350 m 250 m


• With 250m base station separation, 70% of indoor coverage can be achieved. Outdoor street
level WiFi repeaters are installed in blind spot in coverage area to enhance the indoor coverage
to 95%.

Base Station Outdoor Outdoor Indoor coverage Indoor
Region Separation coverage without coverage with without coverage with
Distance repeater repeater repeater repeater
Dense Urban 250m 85% 97% 70% 95%
Sub-urban 500m 85% 97% 60% 95%
Rural 1km 85% 97% 50% 95%


• In Wireless DSL model, Altai Super WiFi BTS is installed to provide reasonable outdoor coverage
to normal WiFi device. Then, Altai C1 CPE is installed in end-user home or office to extend the
indoor coverage

Base Station
Separation Outdoor coverage Indoor coverage Indoor coverage
Region Distance without C1 CPE without C1 CPE with C1 CPE
Dense Urban 500m 75% 40% 90%
Sub-urban 1km 75% 40% 90%
Rural 2km 75% 40% 90%


• A2 will be used for point-to-point (PTP) wireless bridge which connects an A8 to a remote wired
Internet outlet.


• Multiple A2-A8 PTP pairs can be grouped together to form an A8 cluster. In the figure below,
three dedicated 802.11a paths are formed with total throughput of 3 x 20 Mbps available.


• Distances between various combination of A2 and A8, using different panel or omni antennas
are :
Far End A2 with built-in A8 with external A8 with external 9
Near End 16 dBi panel 18 dBi panel dBi omni
A2 built-in 16 dBi panel 12 km 13 km 5.0 km
A8 external 18 dBi panel 13 km 12 km 5.0 km
A8 external 9 dBi omni 5.0 km 5.0 km 2.0 km


• Coverage, throughput and capacity comparison of Altai product

LOS Coverage NLOS Coverage Max. Typical Maximum Access
Product Throughput SSID
Radius Radius (urban) Users Users
A8 1000 m (360°) 250 m 256 100 20 Mbps 16

A2 450 m (360°) 150 m 256 80 120 Mbps# (11n) 16

C1 600 m (70°) 150 m 32 20 20 Mbps 4


• Backhaul Throughput (throughput requirement under each A8 in the interested area)
– Throughput per user = 1 Mbps (assumption)
– No. of concurrent users per A8 in dense-urban areas = 100 concurrent users (assumption)
– Share ratio = 25 (assumption)
– Backhaul throughput per A8 in dense-urban areas
= No. of concurrent users per A8 x Throughput per user / Share ratio
= 100 concurrent users x 1 Mbps / 25
= 4 Mbps


• Antlab SSG will functions as the target Radius server for all the 802.1x wireless access points,
including EAP-SIM.


• The typical authentication process:
– Mobile client tries to associate to the Wi-Fi access point (AP), sends an EAP authentication request that
is picked up by the AP.
– The AP then translates the EAP request into a Radius Access-Request packet (with EAP-SIM based
extensions) and sends it to the SSG (which acts as a Radius Proxy).
– The SSG proxies this Access Request to Tru’Auth which interprets the request as an EAP-SIM request
and initiates its own authentication request to the HLR via the MAPS gateway, using the IMSI that is
found in the Radius Access-Request packet.
– The MAPS gateway queries the appropriate HLR and retrieves the triplets associated with that IMSI
and passes the information back to Tru’Auth.
– Tru’Auth then generates a MAC (message authentication code) challenge based on the triplets
received and this is sent all the way back to the mobile device.
– The mobile device reviews the challenge and if valid, returns its own MAC based on its own SIM card to
Tru’Auth.
– Tru’Auth will verify the returned MAC and if valid, return a Radius Access Accept packet back to the AP
and the AP will then allow association to the mobile device.


• The ANTlabs SSG provide authorization service such as :
– User provisioned routed IP.
– Upload bandwidth rate limit.
– Download bandwidth rate limit.
– Firewall rules.
• The accounting services will track usage of the service. Based on the duration user is logged in
and the amount of traffic (input / output octets and packets)
• Advanced integrated traffic management capabilities
– Volume Prepaid and Fair Use
– Multi-tier QoS with bandwidth guarantee
– Application-based traffic prioritization


Core Network 3G Core Equipment Integration
Carrier Existing to 3G core
Network

Mobile Services GGSN
AAA SSG Internet Services
(Voice, SMS, MMS,
(YouTube, Google,
WAP, IMS…) GE / WLAN AAA Pandora …)
UTRAN
Backhaul
SGSN HLR AWMS
IP-WAN Centralized billing

A8 EAP/SIM and captive
AR portal authentication
IP-WAN
Access GGSN: Gateway GPRS Support Node
3G BTS SGSN: Serving GPRS Support Node

Biz Model 1
A8 1 x A8 for
HLR: Home Location Register
SC: Service Controller
standard site AR: Access Router
Wireless Local-loop AWMS: Altai Wireless Management
3G System
Biz Model 2 A8-Ei (co-locate) UTRAN: UMTS Terrestrial Radio
Access Network
Wireless Offload with QoS Mobile traffic
IP-WAN Internet traffic
Biz Model 3
3G offload with 3G coverage
3G data offloaded
EAP-SIM 3 x A8-Ei for
to WiFi network WiFi
larger site
coverage


www.3dnetworks.com
www.planet1world.com

PT. 3D Networks Indonesia
Total Building 3rd Floor Suite 302 ; Jl. Letjen S Parman Kav. 106-A ; Jakarta Barat 11440
Tel. +62 21 5695 1542 ; Fax. +62 21 5695 1543
Email: iassist.indonesia@planet1world.com


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