WiFi and 3G Convergence Made Easy
Jim Grams
Azaire Networks
Chief Technology Officer
Motive to Converge 3G and WiFi
Voice + data +
multimedia
Converged services
/
Licensed &
unlicensed
spectrum
Hybrid Networks
with mobility
Widen broadband footprint
Lower services delivery cost
Exploit unlicensed service areas
Benefits for Operator & Users
Mobile Operator
Mobile Operator



Residence
Full set of services — with
complete mobility
Lower capex while improving
indoor coverage
Leverage existing investment
with evolution to IMS
 All services, all devices, unique
identify from one service provider

Enterprise
Lower cost on campus
mobile communications –
voice and data
Role of Hybrid Access
Networks





Solves in-building broadband
wireless coverage problem
Reduces 3G deployment costs
Facilitates new service offerings,
implemented at IP layer
Provides easy migration path
among access technologies –
today WiFi, tomorrow WiMax
Enables true convergence
 Independence of access networks
 Common services across different
access networks
 Integration with existing billing and
OSS systems
End User
Services Functions
PSTN
Internet
Core Functions
RADIUS
&
MAP/SS7
GSM/GPRS/
EDGE RAN
UMTS/3G
RAN
DSL/Cable
Access
IMS / PS
Services
WLAN
Access
Robust Gateway Architecture
Simplifies Multi Access Networks
Operator Core Network
Any IP Access
Packet
Services
802.1x
WiFi
M-WSG
Subscriber
Any WiFi
IMS
WiMAX
MSC
Server
SCN
Generic
IP
HLR
UMA
Controller
One platform for mVoIP and Broadband data
Hybrid Network Enhances Mobile
Operator Strategy Options
 Defend existing voice business model:
 Enable lower cost VoIP through Hybrid Networks
 Increase minutes through fixed-mobile substitution
 Combat encroachment with one number convenience
 Reduce costs by exploiting WiFi/WiMax
 Increase coverage for mobile broadband
 Satisfy customer demand in home, office
 Offload heavy data usage from WAN network
 Extend with Mobile Broadband Services
 Enable new access, and
 Offer new, rich IP-based services
 Provide comprehensive bundle
Convergence Approaches
UMA
SIP MSC Emulation
IMS Solutions
Advantages
• Suppl services
• Residential focus
• Advanced services
• Enterprise focus –
IP Centrex
• Same services,
everywhere
• Simple handoff
• Multimedia
Disadvantages
• No IMS Evolution
• Focus is on
legacy (CS) devs
• No enterprise
• Handoff Techniques
not standardized
• Roadmap
• Handoff not
Standardized
(CS2IMS WID)
Support for
Broadband Data


3GPP I-WLAN
based
Convergence
Gateway



Azaire IP CNP
functions
SEGW and I-WLAN
for UMA
PDG, TTG
VLR
PDG, TTG
Azaire IP CNP Supports All Alternatives
Azaire’s IP-CNP Integrates into
Carrier’s Existing Network
Integrated Service Delivery – 3GPP Compliant Solution
Operator Core Network
Internet
Data Path
Control Path
Subscriber
Management
& Roaming
Gr/D/C/
RADIUS/LDAP
Charging &
Billing
Network
Management
Ga/
RADIUS
SNMP
Control Path
Service
Control
Node
Any Vendor’s
Core Equipment
Packet
Delivery
Platform
With HA
Data Path
RADIUS
Metro
WSG
Wi-Fi
Locations
Ethernet
WISP Hotspot
Ethernet
Carrier Hotspot
Ethernet
Enterprise
Conclusion
 Converged services represent an opportunity for mobile
carriers to retain lead in innovation and customer
satisfaction
 Hybrid Networks enable cost-effective ubiquitous mobile
broadband access and are most practical approach for
network evolution beyond 3G
 Azaire Networks solution provides flexibility and enables
rich mobile broadband services regardless of
convergence path selected
‘Mobile Convergence Made Easy’
Azaire Networks
 Formed in 2003, headquartered in Santa Clara, California
 Offices in Germany, India and the Netherlands
 Customers using our solution include T-Mobile, Mobilkom Austria,
Rogers Wireless, GoMobile, Optus
 Our Mission: Enabling Broadband Mobility for IP Access
 Next Generation IP Wireless Networks – 2.5G and Beyond
 Easy deployment over IP layer – voice, data and other services are just
new applications
 Business Model: Selling end-to-end carrier-class infrastructure
solutions to operators
 Leverage existing core network investments for efficient IP delivery
 Products: IP - Converged Network Platform
 GSM/WiFi network connectivity with handover based on 3GPP standards
 Support for UMA and pre-IMS configurations