LTE Voice: No problem, or a world of pain?

eComm, 29th June 2011

Copyright Disruptive Analysis Ltd 2011

Future telephony economics 101

Supply of basic telephony rising

Regulatory pressures

Falling perceived value of phone calls

Accounting rule changes

More users

Voice 2.0 & 3.0

New use cases

Extra functionality & quality

June 2011

Copyright Disruptive Analysis Ltd 2011

Voice ≠ Telephony

Now: 2G & 3G

June 2011

Voice

Telephony

Voice

Telephony

Future: Smartphones & LTE

Video, context, senseVideo

Gaming, CEBP, surveillance, social voice, TV voice etc

VoicemailConferencing

PTT

Copyright Disruptive Analysis Ltd 2011

2020 “Straw Man”1bn LTE handsetsComms services ARPU $20 / mo[but 50% carried on 2G/3G/WiFi]$120bn revenue= equivalent to 2010 SMS market

Lots of options for voice on LTE networks

LTE network owner

Full IMS + VoLTE

“Velcro” CSFB or

Dual-radio

Data only. BYO-VoIP

Partner Skype / Google

etc

Cloud voice

Partial IMS / NGN VoIP

June 2011

+ need for continuity at LTE / 3G / 2G /WiFi boundary

Copyright Disruptive Analysis Ltd 2011

LTE voice & VoLTE challenges

Too many spectrum bands Acoustics Offload / multi-bearer scenarios Unknown need for optimisation & tuning of RAN High probability of OSS / BSS headaches Lack of clarity around network-sharing / wholesale scenarios Indoor coverage problems, esp. with MIMO Massmarket handsets a long way off Where is SMS???

June 2011

VoLTE only addresses “old telephony”, not general-purpose voice for future apps. Should be called ToLTE

IMS: dead, but now nailed to the perch of LTE?

Copyright Disruptive Analysis Ltd 2011June 2011

LTE

Mobile IMS

3GPP& GSMA

Fjords, aka RCS

(With apologies to Monty Python)

http://disruptivewireless.blogspot.com/2009/08/mobile-ims-and-lte-networks-dead-parrot.html

Copyright Disruptive Analysis Ltd 2011

Some technology gaps?

June 2011

Telephony & messaging model for wholesale

LTEnetworks

VoIP and messaging in

complex offload

scenarios

Prioritisation & QoS

engines for complex

scenarios

Signalling management

for VoLTE, comms apps

& MBB

On-device measurement

of user-perceived

QoE

Advanced acoustic

technology optimised for mobile VoIP

Solution for SMS on LTE that works

Dual-radio GSM / LTE devices and

chipsets

Copyright Disruptive Analysis Ltd 2011

Next steps: participate, analyse & collaborate

June 2011

www.disruptive-analysis.com

disruptivewireless.blogspot.com

@disruptivedean

+44 (0) 7941 100016

Copyright Disruptive Analysis Ltd 2011June 2011