LTE Money Matters

dingdongboomNetworking and Communications

Oct 27, 2013 (3 years and 7 months ago)

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Webinar:

LTE Money Matters



VoLTE and Roaming



Seamus
Hourihan

Senior Vice President,
Marketing & PLM

Acme Packet

Dan Warren

Director of Technology


GSMA

Pradeep

Bhardwaj

Technology

Director R&D


Syniverse

Technologies

Tracy Ford

Executive Editor


RCR Wireless News

LTE


Roaming and Voice

Dan Warren, Senior Director of Technology

GSMA

dwarren@gsm.org


Text

130 operator commitments to LTE

GSM family of technologies creating ecosystems worldwide

Interconnect

Roaming

Voice

Proof of Concept


Who has done what


Industry Forums

Standards

Business Requirements

Test and Certification

GSMA activity in LTE


Next Generation Roaming and Interoperability (NGRAI)


Evolved Packet Core (EPC) interfaces differ from those in PS
Domain


GTPv2, MIP, Diameter inter
-
PCRF (S9) and HSS
(S6a, S6d)


New technical Home <
-
> Visited interface definitions needed


Reflection of these changes into framework contracts



Voice over LTE (VoLTE)


LTE is an all
-
IP mobile network
-

No support for ‘traditional’ CS
domain voice.


GSMA VoLTE initiative established to define a single, voice
implementation to allow interoperability, roaming, ecosystem
and economy of scale.

Principles of
VoLTE


For any system to become truly interoperable
and to generate economies of scale and
ecosystem characteristics, a number of factors
need to be in place.


It needs to be widely backed


VoLTE was supported
by 20 operators at launch, now have 40 active
operators and around 30 vendors.


It needs to identify open interfaces to enable
implementation by any party


VoLTE has defined
UNI, NNI and roaming interfaces.


VoLTE

-

timeline


2010




2011

GSMA VoLTE initiative
announced at MWC
Feb 2010

GSMA VoLTE
Demo with
CSL at MAC,
Nov 2010

GSMA VoLTE
handset call demo
with Verizon at
MWC, Feb 2011

UNI defn
April 2010

NNI defn
June 2010

Roaming Call
Scenarios,
Apr 2011

Roaming
Architecture,
Jan 2011

Commercial
Framework
templates,
Sep 2011

LIVE VoLTE
NETWORKS
2012

GSMA and
MSF VoLTE
test event,
Sep 2011

LTE Money Matters


VoLTE

and Roaming


15 March 2011


RCR Wireless Webinar

Pradeep Bhardwaj

Technology Director


R&D, Syniverse Technologies

Chairman


GSMA HPIG

+44
-
772
-
558
-
2624

High Level Architecture

3 Local Breakout


LTE/SAE Rel. 8

UE

PDN

MME

Rel. 8

2G/3G

UTRAN

GERAN

SGSN

eNodeB

E
-
UTRAN

UE

UE

UE

S
-
GW

GGSN

PDN

PDN
-
GW

PDN

P
-
GW

GGSN

PDN

VPMN

HPMN

1 Local Breakout


2G/3G
-

Pre Rel.8

4 Home routing


LTE/SAE Rel. 8

1

3

2

4

2 Home routing


2G/3G
-

Pre Rel.8


P
-
CSCF

S
-
CSCF

IMS

LTE Roaming Signaling & Bearer Flows

MME

HSS

Serving

Gateway

PDN

Gateway

Syniverse

IPX

Diameter

Diameter

GTP/PMIP

GTP/PMIP

Diameter

Proxy

Visited Network

Home Network

IMS

IMS

SIP

SIP


/

Target Voice
-
over LTE Roaming Architecture

Mb

IPX


The Focal Point in LTE

Today GRX supports GRPS, EDGE, 3G,
HSPA data roaming and MMS interworking


No inherent support for LTE or IMS


Only specified for use by mobile network
operators


No required support for QoS

Developed by GSMA to foster open
standardized IP connectivity for multiple
types of service providers


Provides for end
-
to
-
end QoS in support of
both roaming and interworking for LTE and
IMS


Fully backward compatible with GRX networks


Used by MNOs, FNOs, ISPs and ASPs

Pivotal point of the whole LTE ecosystem

Voice
-
over
-
LTE Interfaces on IPX

HPMN
-

VPMN

Mobility Mgmt


HSS to MME



S6a

Diameter (supersedes MAP
-
SS7)

Policy and Charging Rules


hPCRF

to
vPCRF


S9

Diameter

IMS Signalling


P
-
CSCF to S
-
CSCF


Mw

SIP

HPMN


Interconnect

IMS Signalling


S
-
CSCF(a) to S
-
CSCF(b)

Mm

SIP


VPMN


Interconnect

IMS Media


IMS AGW(a) to IMS AGW(b)

Mb

RTCP/RTP


Role of Syniverse IPX in LTE/SAE

Interconnect
-
NNI and Roaming
-
NNI for LTE

NNI & physical connectivity for GTP & PMIP interfaces


GTPc
-
v2, GTPc
-
v1, GTPu
-
v1, PMIP, MIP

NNI & physical connectivity for Diameter
-
based interfaces


S6a, S6d, S13, S13’


S9, S7,
Gx
,
Gxc
,
Gxd
, Rx,
Gy

NNI & physical connectivity for new “Diameter Routing”
architecture for Roaming Hub for LTE

Inter
-
IMS NNI & physical connectivity for SIP interfaces


Mw, Mm, Mb

Role of Syniverse IPX in LTE/SAE

Separation of GTP
-
c signalling for Bilateral & Roaming Hub
traffic

Separation of Diameter signalling for Bilateral & Roaming
Hub traffic

Diameter interfaces to Online & Offline Charging Systems


IMS and Non
-
IMS environments

Support for Diameter
-
MAP IWF if needed

IP
-
v4/IP
-
v6 interworking

VoLTE

Architecture Summary


VoLTE

architecture work nearly complete


UNI: GSMA PRD IR.92 complete


NNI: IPX defined as Interconnect
-

& Roaming
-
NNI


Roaming: GSMA PRD IR.88 complete


IMS
-
NNI: GSMA PRD IR.65 available

Ongoing items


3GPP
-
OMR or IP
-
based Optimal Routing


Consensus emerging


VoLTE

Charging Requirements identified


Main issues identified:


Visibility into information required for Charging when media traverses
separately from signalling


Cascading of commercial principles


Possible architecture options/choices currently discussed

LTE roaming and
VoLTE

session delivery requirements


Acme Packet

17



Home network

1

Attach

2

Authenticate

2

3

Visited network

HSS

MME

Roaming border

Authenticate

Update Location

4

Subscriber Data

5

Policy exchange

PCRF

PCRF

LTE
roaming basics

Acme Packet

18

LTE
roaming challenges

MNO
1

MNO
3

MNO
4

MNO
2

MNO
5

MNO
7

MNO
6

MNO
8

IPX A

IPX B


Service reach
-

Diameter interoperability


Security


Routing


Performance


transactions/sec


Cost


CAPEX & OPEX

Home network

Visited network

S9

S6a

Acme Packet

19

Policy exchange controller

solves LTE roaming challenges


Interoperability


AVP manipulation & filtering


IWF
-

SCTP
-
TCP. IPv6
-
IPv4



Security


Overload &
DoS
/
DDoS

protection


Access control


AVP lists


Authentication & verification


IMSI
-
PLMN, mutual
certificates, IMSI range blocking



Routing


Subscriber authentication

(home MNO & IMSI
-
HSS)


Preferred roaming partner


PCRF load balancing


MNO
1

MNO
3

MNO
4

MNO
2

MNO
5

MNO
7

MNO
8

MNO
6

IPX A

IPX B

Standards


RFC 3588 Diameter
agent (relay or proxy)


3GPP Diameter Routing Agent (DRA)


GSMA Diameter Edge Agent (DEA)

Acme Packet







Internet






VoLTE

session delivery challenges




20


Fixed line






eUTRAN

LTE

EPC

Rx

Gm

Rx/
Rq






CS UTRAN

3G

Other IP

networks

IMS/NGN data
centers


e2

Rf

Cx
/
Dx

ISC

Mw

FTTx

xDSL

Cable

Leased line

Transport backbone

Gm


Voice is different from data


Service availability/reliability


Minimal

latency & jitter


Highly

peer
-
peer


Trust


Regulatory compliance



Not just voice
-

presence
-

enabled interactive video,

IM, collaboration



Service accessibility


Any access network,

any device;


Roaming


3G fallback for voice



Physical deployment


Right scale at right time


Cost
-

CAPEX, OPEX,

backhaul

Acme Packet







Internet






Session border controller

solves
VoLTE

access challenges


Service reach

-
Ubiquitous access
-

LTE, fixed, Internet

-
Protocol translations, fix
-
ups &
transcoding

-
IPv4
-
v6 IWF

-
3G fallback
-

integrated ATCF, ATGW

-
Roaming support


V
-
PCSCF

-
NAT traversal
-

fixed line



Security

-

overload &
DoS
/
DDoS


attack protection



QoE

-
Admission control
-

bandwidth


(PCRF Rx) & signaling constraints

-
Transport control


prioritization,

media release, optimal routing

-
QoE

reporting



Regulatory compliance

-
Emergency services


E
-
CSCF

-
Lawful intercept



Revenue & cost management

-
Integrated functions

-
Virtualization
-

multiple services

-
Charging interface
-

Rf


21


Fixed line






eUTRAN

LTE

EPC

Rx

Gm

Rx/
Rq






CS UTRAN

3G

Other IP

networks

IMS/NGN data
centers


e2

Rf

Cx
/
Dx

ISC

Mw

FTTx

xDSL

Cable

Leased line

Transport backbone

Gm

Aggregation

PoP

Acme Packet

LTE voice and data roaming


Interconnect SBCs

-
Interoperability


signaling and media

-
Security

-
SLA assurance


QoE



Cost
-

SBC

PEC integration


22





22

Services

& apps

Core

transport

Access

Aggregation

PoP (EPC)

eUTRAN




IPX

eUTRAN

Visited

SIP signaling

SIP media

Packet data

Diameter

Home

Internet

S9/S6a

S6a

S9

S9

S6a

Acme Packet

23

Under embargo until Feb 14, 2011

Net
-
Net


VoLTE

and LTE roaming introduce new requirements

for trusted, first
-
class session delivery


Security


Interoperability


QoE


Revenue & cost management


Regulatory compliance



SBCs and PECs play critical roles in satisfying

LTE session delivery requirements

The leader in session delivery network solutions

for trusted, first
-
class, next
-
generation

voice, data & unified communications services

Acme Packet

Questions?


submit via control panel

Want to learn more?



Meet Acme Packet at
Booth 1814

or visit

www.acmepacket.com/mobile



Free whitepaper:

Policy Exchange Controllers: Enriching Diameter Signaling for LTE & IMS

www.acmepacket.com/policyexchangecontrol




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