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ALCATEL-LUCENT — PROPRIETARY AND CONFIDENTIAL
COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED
Carrier WiFi & Seamless Mobility to 3G/LTE networks
Nardus le Roux Mar 2015
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ALCATEL-LUCENT — PROPRIETARY AND CONFIDENTIAL
COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED
Agenda
1. Introduction
2. Carrier WiFi architectures
3. Seamless Mobility between 3GPP and non-3GPP networks
4. Conclusion
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ALCATEL-LUCENT — PROPRIETARY AND CONFIDENTIAL
COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED
Introduction From Wi-Fi as best-effort commodity to Wi-Fi as radio technology to access the Carrier Core
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ALCATEL-LUCENT — PROPRIETARY AND CONFIDENTIAL
COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED
WIFI UBIQUITY
Key Observations:
• Continual, rapid growth in the number of WiFi-enabled devices Driven primarily by Smartphones, Tablets
and Notebooks.
• Amount of data transferred over WiFi by smartphones is substantially more than over cellular.
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ALCATEL-LUCENT — PROPRIETARY AND CONFIDENTIAL
COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED
Q32014 announcements reinforce the dominance of Wi-Fi
backhaul
access
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ALCATEL-LUCENT — PROPRIETARY AND CONFIDENTIAL
COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED
Vehicle
Routers
Outdoor
Metrocells
The silos of a fragmented Wi-Fi industry
Home
Electronics
Public
Hotspots
Enterprise
CPE
1 Wi-Fi Password
per Home
Captive Portal
Credit Card
Room Number
Boingo/iPass
EAP-TLS :
X.509 Certificate EAP-SIM
EAP-AKA
1 Wi-Fi Password
per Vehicle?
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ALCATEL-LUCENT — PROPRIETARY AND CONFIDENTIAL
COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED
Broadband ISPs
Goal : Carrier Wi-Fi as an integrated Radio Access Technology
Internet
Mobile Network Operators
Mobile Subscription
WLAN
GW
authenticating & instantiating
individual Wi-Fi users
Closed and Open Operator SSID
L2 encaps L2 encaps L2 encaps
Radio planning, beamforming,
monitoring
AAA server
Wi-Fi RAT Included
Seamless Mobility
PGW/GGSN
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ALCATEL-LUCENT — PROPRIETARY AND CONFIDENTIAL
COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED
TWAG L2 AP in Public
Hotspots
CARRIER WI-FI
L2 AP in Homespot
L2 AP/CPE Enterprise
L2oGRE DHCP
Captive Portal & Analytics
Wifi AP
LBO, SIPTO
RADIUS AAA
server
Vision: Carrier Wi-Fi as integrated RAT in heterogeneous networks
HetNet Operators should ensure Service Continuity across the RANs & TWAN
IP/MPLS CORE
PGW/GGSN
IP MOBILE CORE
Border GW
NETWORK MANAGEMENT
IMS/Voice
CDN/IPTV
Enterprise
Datacenter
3GPP CELLULAR RAN
a HetNet Operator should guide the UE to
the best (mix of) access technologies for any
service, at any time and in any location...
Internet
HSS/HLR MME/SGSN
Macro RAN
BTS NodeB eNodeB
Agg/SeGW/SGW
OCS, PCRF, LIG...
2G-3G-LTE
LTE+Wi-Fi Metrocell
LTE+Wi-Fi Enterprise
Small Cells
... with UE Address
Continuity
IPSec
& SeGW
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ALCATEL-LUCENT — PROPRIETARY AND CONFIDENTIAL
COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED
Carrier WiFi architecture From Wi-Fi as best-effort commodity to Wi-Fi as radio technology to access the Carrier Core
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ALCATEL-LUCENT — PROPRIETARY AND CONFIDENTIAL
COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED
3GPP Rel. 8 TS 23.401/23.402 Evolved Packet Core architecture
EPC
E-UTRAN MME
SGW PGW
SGSN PDN
HSS
HLR
SGi S5/S8
S11
S1-MME
S1-U DNS
S6a
Gb IuPS
UTRAN
GERAN
S3 S12
S4
S6d
Internet OCS, PCRF, LIG...
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ALCATEL-LUCENT — PROPRIETARY AND CONFIDENTIAL
COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED
3GPP Rel. 8 TS 23.401/23.402 Evolved Packet Core architecture
Trusted and Untrusted Wi-Fi plug into it;
IP Mobile Core
EPC
E-UTRAN MME
SGW PGW
SGSN PDN
UE
HSS
HLR
SGi S5/S8
S11
S1-MME
S1-U DNS
non-3GPP
Trusted Wi-Fi
non-3GPP Untrusted Wi-Fi
TWAG
ePDG
SWw
STa
S2a
S2b SWx
S6b
SWm
SWn
AAA
Proxy/Server
S6a
Gb IuPS
UTRAN
GERAN
S3 S12
S4
S6d
Internet
3GDT Gn/Gp
Gn
GGSN
Gr
IPSec
L2oGRE
EAP
Data APN
Data APN
Data APN
OCS, PCRF, LIG...
Anchor point for
inter-RAT IP@
continuity and
hybrid access
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ALCATEL-LUCENT — PROPRIETARY AND CONFIDENTIAL
COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED
3GPP Rel. 8 TS 23.401/23.402 Evolved Packet Core architecture
Trusted and Untrusted Wi-Fi plug into it; LBO & SIPTO allow direct PDN access
IP Mobile Core
EPC
E-UTRAN MME
SGW PGW
SGSN PDN
UE
HSS
HLR
SGi S5/S8
S11
S1-MME
S1-U DNS
non-3GPP
Trusted Wi-Fi
non-3GPP Untrusted Wi-Fi
TWAG
ePDG
SWw
STa
S2a
S2b SWx
S6b
SWm
SWn
AAA
Proxy/Server
S6a
Gb IuPS
UTRAN
GERAN
S3 S12
S4
S6d
Internet
3GDT Gn/Gp
Gn
GGSN
Gr
IPSec
L2oGRE
EAP
Data APN
Data APN
Data APN
OCS, PCRF, LIG...
Anchor point for
inter-RAT IP@
continuity and
hybrid access
LBO SIPTO NAT
NAT
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ALCATEL-LUCENT — PROPRIETARY AND CONFIDENTIAL
COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED
Seamless Mobility between 3GPP and non-3GPP network
for data & voice
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ALCATEL-LUCENT — PROPRIETARY AND CONFIDENTIAL
COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED
3GPP Multiple Access PDN Connectivity (MAPCON) The UE and/or Servers spread traffic among multiple RAT with different IP@
IP/MPLS CORE
7750 SR WLAN GW & SeGW
PGW/GGSN
Motive AAA
server
WIRELESS PACKET CORE
Border GW
NETWORK MANAGEMENT 5620 SAM
IMS/Voice
CDN/IPTV
Enterprise
Datacenter
Layer 2 Access Points
FIXED AGGREGATION
MOBILE BACKHAUL
2G-3G-LTE
Motive HDM & MDM
LTE-WLAN Metrocell
3G-WLAN Metrocell
L2 AP in Homespot
L2 AP/CPE Enterprise
L2oGRE Tunnel DHCP
IPv4 address A IPv6 address B
Internet
HSS/HLR MME/SGSN
Captive Portal & Analytics
BTS NodeB eNodeB
Agg/SeGW/SGW
ANDSF
MAPCON Policy Rules
OCS, PCRF, LI...
IPv4 address C IPv6 address D multipath
TCP...
no solution for UDP...
0
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ALCATEL-LUCENT — PROPRIETARY AND CONFIDENTIAL
COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED
3GPP IP Flow Mobility (IFOM) enhanced by Alcatel-Lucent PGW and UE forward packets via the correct RAT for each Policy Rule
A
IP/MPLS CORE
7750 SR WLAN GW
PGW/GGSN
Motive AAA
server
WIRELESS PACKET CORE
Border GW
NETWORK MANAGEMENT 5620 SAM
IMS/Voice
CDN/IPTV
Enterprise
Datacenter
Layer 2 Access Points
FIXED AGGREGATION
MOBILE BACKHAUL
2G-3G-LTE
Motive HDM & MDM
LTE-WLAN Metrocell
3G-WLAN Metrocell
L2 AP in Homespot
L2 AP/CPE Enterprise
L2oGRE Tunnel DHCP 1 IPv4 address
1 IPv6 address
Internet
HSS/HLR MME/SGSN
Captive Portal & Analytics
BTS NodeB eNodeB
Agg/SeGW/SGW
ANDSF
IFOM Detection Logic & Policy Rules
Optional IFOM Policy Rules
OCS, PCRF, LI...
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ALCATEL-LUCENT — PROPRIETARY AND CONFIDENTIAL
COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED
Bonding aka hybrid access – also a dual active radio technology
PGW and UE forward packets via the correct Link for each Policy Rule
B
IP/MPLS CORE
7750 SR eBNG
PGW/GGSN
Motive AAA
server
NETWORK MANAGEMENT 5620 SAM
IMS/Voice
CDN/IPTV
Enterprise
Datacenter
Access Node
FIXED AGGREGATION
MOBILE BACKHAUL
2G-3G-LTE
Motive HDM & MDM
PPP or DHCP (IPoE)
1 IPv4 @ 1 IPv6 @
Internet
HSS/HLR MME/SGSN
BTS NodeB eNodeB
Agg/SeGW/SGW
Detection & Bonding Policy Rules
Bonding Policy Rules
DSL GPON
G.FAST
WIRELESS PACKET CORE
OCS, PCRF, LI...
ANDSF
CPE
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ALCATEL-LUCENT — PROPRIETARY AND CONFIDENTIAL
COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED
3GPP Release 12 evolved S2a Mobility Over GTP (eSAMOG) Single active radio technology with WLAN access negotiated by EAP-AKA' & WLCP
C
IP/MPLS CORE
7750 SR WLAN GW
PGW/GGSN
Motive AAA
server
WIRELESS PACKET CORE
Border GW
NETWORK MANAGEMENT 5620 SAM
IMS/Voice
CDN/IPTV
Enterprise
Datacenter
Layer 2 Access Points
FIXED AGGREGATION
MOBILE BACKHAUL
2G-3G-LTE
Motive HDM & MDM
LTE-WLAN Metrocell
3G-WLAN Metrocell
L2 AP in Homespot
L2 AP/CPE Enterprise
L2oGRE Tunnel DHCP 1 IPv4 address
1 IPv6 address
Internet
HSS/HLR MME/SGSN
Captive Portal & Analytics
BTS NodeB eNodeB
Agg/SeGW/SGW
ANDSF
TSCM SCM
OCS, PCRF, LI...
3GPP R12 UE
EAP-AKA'
Other APN
Other vMAC@
WLCP
MCM
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ALCATEL-LUCENT — PROPRIETARY AND CONFIDENTIAL
COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED
Conclusion Carrier WiFi with seamless mobility is deployable today, choose a trusted partner
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ALCATEL-LUCENT — PROPRIETARY AND CONFIDENTIAL
COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED
Release 11
(2013)
Release 13
(2016)
Release 12
(2015)
3GPP standards and Vendors embracing Trusted and Untrusted Wi-Fi
Release 6-7
(2006-2007)
I-WLAN TTG/PDG
TS 23.234
Untrusted Non-3GPP
Access
Release 8-9-10
(2008-2012)
Trusted Non-3GPP
Access
Multiple Concurrent Connections
IP Flow Handling
Traffic Flow Templates
UMTS Traffic Classes
MAPCON
TWAG (S2a PMIP)
TS 23.402
I-WLAN ePDG
(S2b PMIP) TS 23.402
IP Filters
LTE QCI
IFOM (non-3GPP)
TS 23.261
SAMOG (S2a GTP)
TS 23.402 §16
ANDSF ISMP/ISRP
TS 24.312
ePDG (S2b GTP)
SIM-based auth
NB-IFOM
Hybrid
Access eSAMOG with
IP@ continuity
IFOM+
Vendor-Specific
ePDG+ (S2b GTP)
Incl. EAP-TLS
MDM and ANDSF+ clients with
Vendor-Specific extensions
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ALCATEL-LUCENT — PROPRIETARY AND CONFIDENTIAL
COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED
Conclusion:
Current solutions for UE IP@ preservation between RAN & TWAN
DEVICE INDEPENDANT
DEVICE DEPENDANT
DUAL
ACTIVE
RADIO
SINGLE
ACTIVE
RADIO
0.
Multipath
TCP
Only works for TCP
O A.
IFOM
Works for Apple
& Android devices
Only working
solution today for
smartphones/tablets
B. Bonding
aka Hybrid
Access Requires CPE Logic
Only working
solution today for
LTE+DSL throughput
aggregation
C. 3GPP
Release 12
eSAMOG Will require 3GPP R12
compatible devices…
FUTURE
E. Visited
Network
Transfer
Requires new
network Element
D. Home
Network
Transfer
Requires a 3GPP AAA
& has PGW impact
O O P
P