VoLTE_Parametros.pptx

Embrace the LTE Era VoLTE, the Strategic Choice Yang Qin, Cloud Core Network Marketing Dpt

Contents VoLTE improve spectrum utilization Build up best experience VoLTE Network Accelerating 4G Migration

VoLTE is An Inevitable Choice due to 2G/3G Migrating to 4G #1 Spectrum aggregation 2G/3G spectrum release and make it as a thin network for roaming service and etc . 2020+ Now

LTE

LTE

LTE

2G/3G

2G/3G

#2 Simple network and saving cost More and more operators chose to close 2G or 3G, to avoid operating more than 3 networks

2017/1/1 Officially Closed 2G  

2016/12/1  Announced Close 2G

2012 Closed 2G

2017 Close 2G

2017 Close 2G

Close 3G in 2020

Close 2G in 2020 in Norway

VoLTE is an inevitable choice with the closing of 2G/3G network 2G/3G would be a thin network with the migration from 2G/3G voice to VoLTE

VoLTE Booming under Low Band Spectrum Refarming Phase Two(2017-2020)

Phase One(2011-2016) •

Refarming 1800MHz for Data Service

3G

5G

data capacity

Refarming 1800M is Mainstream in Phase One  

•

Refarming 900MHZ for LTE Coverage & VoLTE Ready for 2G or 3G switching off 

lower frequency spectrum travels

47.2% LTE operators

4G

refarming 1800M for higher 2G

•

900MHz

2017, Refarming 10M@900M

further & penetrate buildings better than higher ones

2017, Refarming 4.4M@900M

2018, Refarming 5M@900M

2017, Refarming 5M@900M

VoLTE offload voice traffic from LB Spectrum while 2G voices service mainly stay on LB LB Spectrum gives continuous converge for VoLTE

Global VoLTE deployment is Accelerating Updated 28 Feb 2017

HKT Case: Spectrum 900MHz Refarming in 2014 - 2017 2 x 15MHz L2600 Network Ready

30M@1800 refarming

Subway coverage enhancement

VoLTE initial Commercial

3M@900MHz refarming 5M@2100MHz refarming

3M@900 refarming

CSFB

2012

2011 4G user pen. rate(data) 30% 2600 2100 1800 900

VoLTE user pen. Rate(voice) NA

20M 15M 6M

30M

4G user pen. rate(data) 60%

UMTS

LTE

VoLTE user pen. rate(voice) 30% 2600

UMTS 15M

2100

10M

GSM UMTS

1800

6M

30M  LTE 6M 

LTE 3M

2016

2014

LTE 20M

UMTS 3M UMTS 5M

8M GSM

2013

900

4Guser pen. rate(data) 74%

VoLTE user pen. rate(voice) 60%

LTE 20M

20M

8M

2017e

UMTS 15M UMTS 10M

5M

30M

LTE UMTS



LTE 5M

30M 6M

LTE 3M UMTS 5M



LTE 5M

Contents VoLTE improve spectrum utilization Build up best experience VoLTE Network Accelerating 4G Migration

China Mobile Built Up the Largest-Scale VoLTE Network National Wide VoLTE Commercial

Be Lack of LB Spectrum for VoLTE TDSCDMA

GSM 2600 2100 1900

1800 900

• • • •

1.3M LTE Base Station Total 4G User: 500M VoLTE Commercial Launched in 27 Provinces Total VoLTE Active User: 100M (20% penetration)

60M

TD-LTE TD-SCDMA

15M 10M

LTE

20M

TD-LTE & TD-SCDMA

50M 20M

GSM 50M

40M 10M

GSM 40M

• Globally, 102 operators launched VoLTE • Only 13 of them do not have LB LTE, e.g  Algeria Mobilis, Bahrain Batelco, Canada Rogers Malaysia Yes, DiGi, Slovakia 4ka

Macao CTM,

，

Denmark Telenor,

，

Sri Lanka Dialog, Thailand DTAC, Colombia Movistar , CMHK,

Key Learning 1: VoLTE deployment is unprecedented in its complexity and a great challenge to carrier networks Ut

Service Layer 

CRBT Platform

Location Service Platform

CallSignature Platform

IP-SMGW

VoLTEAS /IM-SSF

CAP

Sh

Core Layer  IMS Domain

PCC

Subscriber Database

SLh/SLg J

Service ProxyGW

IN SCP

CAP

Convergent

Zh

C/D

HSS

PCRF IBCF

Mx

I/S-CSCF /BGCF

Cx Signaling Network

BOSS

Nc

MGCF

NMS Rx

DRA

VoLTE SBC

•

GSM Call: 8 NEs,9 Interfaces，VoLTE Call:21 NEs, 38 Interfaces（in CMCC）

•

Mulit-vendors、Device Immaturity，Multi-Services

DNS /ENUM

Mg/Mj

Mw

Network Complexity：More NEs, Long Path

2GCS Domain

Cx/Sh/Zh/ S6a/SLh

SLs

ISC

Rx/Gx

Operation Support Layer 

Mw/I2

Multi-Domain Collaboration ： 2G/3G/4G • SRVCC HO、Service inheritance & consistency 、

GMSC

Roaming

Nc PS Core

Gx

SAE GW/ GGSN/PC EF

SGi S11/Gn

• Bad voice experience under weak coverage

eMSC

S6a/SLg

Bearer  Layer  Access Layer 

Gr 

MME/ SGSN

Sv

OMC

Bearer Network S1-U LTE Access

Terminals

S1-MME

eNodeB

Gb

BTS/BSC

Gm Uu

VoLTE UE(chip)

O&M：challenge of demarcation & troubleshooting

 A 2G Access

• Um Ut

70%-80% issues need cross-domain demarcation & troubleshooting

10 Tasks for VoLTE Network Reconstruction SN

Field

Task

1

Diameter signaling network construction

Deploy session DRAs provided the same vendor in pairs.

2

EPC-HSS/IMS-HSS/HLR convergence reconstruction

Upgrade and reconstruct the HSS/HLR on the live network to support IMS-HSS. If the HSS/HLR on the live network does not support the convergent HLR/HSS, deploy new ones.

3

IMS Core construction and reconstruction

Deploy or reconstruct the I/S-CSCF, MGCF, and ENUM DNS on the live IMS network.

4

CS/PS core network upgrade and reconstruction

Configure the MSC, MME, and SAE-GW to support eSRVCC and IPv6 addresses.

5

4G PCC network upgrade and reconstruction

Upgrade the PCRF and PCEF to support VoLTE dedicated bearers.

6

Service platform building and intelligent network reconstruction

Deploy the service platform, such as ATS. Reconstructs the platforms of intelligent network, SMS, CRBT, mobile printing, and LSP services.

7

IP bearer network upgrade and reconstruction

Reconstruct devices on the IP bearer network to support IPv6 addresses.

8

Service supporting system and NMS construction

Manage and control service subscription, charging, and networks.

9

2G/4G/4G wireless network upgrade and reconstruction

Upgrade and reconstruct eNodeBs on the entire network to support eSRVCC. TTIB, ROHC, Voice COMP

Key Learning 2: Initial Wireless Coverage Designing for Data, Need to be Enhanced for VoLTE Real-time voice requires better wireless coverage and quality than data Experience from CMCC TDD: Voice: -113dBm > Data: -118dBm Weak coverage area • • •

-113 dBm

Accurate assessment, better coverage Optimization in CMCC Zhejiang • MOS>3: 86% -> 97% • Call drop rate: 0.82% -> 0.29%

Low voice quality High drop rate Single pass…

-118 dBm

Air interface optimization for voice Quality and Coverage Optimization based on TTIB, ROHC, Voice COMP, Rate adjustment

Key Learning 3 ：Immaturity of Terminals 

KPIs vary significantly from Different Terminal even in the same network

KPI

iPhone6

CMCC N1

Samsung S6

MATE7

MATE8

MO Session Connection Rate

87.08%

85.83%

85.82%

85.76%

85.76%

89.32%

90.38%

88.65%

MT Session Connection Rate

98.63%

98.46%

98.56%

98.56%

98.56%

95.81%

98.60%

99.41%

Call Delay VoLTE-2-VoLTE(ms)

3322.55

3330.25

3459.97

3366.23

2735.20

2962.57

3382.82

3103.83

Success Rate of SRVCC HO

85.23%

86.99%

87.17%

97.26%

97.08%

85.34%

90.12%

92.73%

Registration Success Rate

97.88%

97.58%

97.76%

97.60%

99.32%

85.06%

89.18%

95.08%

Uplink MOS

3.88

3.87

3.88

3.87

3.85

3.87

3.84

3.88

Downlink MOS

3.92

3.92

3.92

3.92

3.52

3.88

3.77

3.78



•

iPhone6s+ iPhone6s iPhone6+

One week after enabling iPhone6 VoLTE function, 19 Top issues came out  Apple release iPhone’s ‘Carrier Setting Updates’ supporting VoLTE from 20th Feb , So iPhone6 could switch on VoLTE function.

No.

Type

Summary

Route Cause

Solution

TOP1

Connect Failed

iPhone can not be connected when just come back from blank LTE coverage.

iPhone didn’t unregister when enter the no coverage, 1. Start CS RETRY function by 404 response, connect Fail to register to Network when come back to LTE coverage. iPhone in CSFB way When called, receive 404 response from network 2. Switch iPhone to flight mode and back to normal

TOP2

Connect Failed

iPhone6 that have been upgrade to jailbreak version could not make a call to NonVoLTE subscriber 

Codec negotiation fail with CS user when enable VoLTE

1. Check all the non-standard iPhone, and send message to the user to reboot iPhone and upgrade official iOS. 2、switch off VoLTE, fall back to CS to make a call

Huawei Facilitate VoLTE Device Integration Roadmap synchronization in every 6 months

We are defined terminal Compatibility testing cases and performing compatibility test with popular VoLTE/VoWiFi Terminal.

R  o  a  d  m  a   p 2016Q4

T   e  s  t    i    n   g

Mate9/P10

Mate10

iPhone7

iPhone7

Xperia Z5

R9



VoWifi

Galaxy S7

Mi 5



We are here now

2017Q2

2017Q4

iPhone7S

Galaxy S8 VoWifi

Xperia

VoWifi

Terminal Capability test

Terminal VoLTE Capability defined by IR92.

Terminal Operation test

The effect for VOLTE service in case of do sundry operation in UE, like 2/3/4G network selection, 4G/data/VoLTE switch off and on etc.

Terminal InterOperation Test

UE’s behavior when n etwork returns

unexpected Reponses like 3XX/4XX/5XX/6XX etc. Inter-Operation between different terminal, especially Video call QoS.

Scenario

TBD

VoWifi

Test Content

Unexpected Reponses Cases Test

TBD VoWifi

Test Catalog

VoWifi

VoWifi

TBD

More than 50 VoLTE/VoWifi terminal/chipsets has been integrated. Over 30 VoLTE terminals are commercial launched w ith Huawei Core Network

Test Content

Case Num.

New Vendor’s new product

 All Test Cases

600

Same Vendor’s new product(Chipset and protocol stack are different)

 All Test Cases

600

Same Vendor’s new product(Chipset and protocol stack are same)

Terminal Operation Cases

300

Terminal Commercial Capability estimate for project.

Terminal Capability Case.

150

VoLTE feature phone accelerate VoLTE users growth of three types operators Operators of pure LTE

25$

India RJIO / Egypt TE

Operators of spectrum shortage

Facebook Whatsapp Twitter 

Basic requirement satisfy two types of users

Tariff subsidies promote low-end voice user migration. Cultivate MBB habits with low cost.

Indonesia/ Saudi Arabia/ Thailand/ Latin America

Operators of closing 2G network Low-end users

 Aged users

China Unicom/Turkey VDF/  Australia VHA

Key Learning 4: From Trial Deployment to Commercial, E2E Network Optimization & Fine-tuning of Live Network is a MUST challenges:

KPI don’t reflect real user experience

Complexity in Live Network Multi-band synergy

One-way Audio

Weak Coverage Swallow Voice

Capacity e.g. uplink Intermittent Voice

Interference check

Two-way no Audio

CMCC “100 Days Campaign” for VoLTE Experience Optimization 29 province, 200 Cities, 1000+ issues, 90+ solving ratio,

SRVCC threshold

Different User Behavior  • High Speed Handover  • Big Event • Outdoor / Indoor  • Immature Devices • VIP / VVIP

25

100%

20

95%

15

90%

10

85%

5

80%

0

75%

E2E team cover Core/Wireless/IP Bear/IN/Device VoLTE issues

Issue solving Ratio

4 Measures to Optimize VoLTE eSRVCC CEM platform Visualize eSRVCC performance Failure cause proportion

eSRVCCHandover  successful Rate & Delay

12%

2G/3G WL 14%

SEQ

74%

Identify the poor performance Cells

IMS Core 4G WL

• SRVCC handover failure cause • poor performance cell • bSRVCC, aSRVCC, eSRVCC

eSRVCC handover successful rate improvement Load balance Optimization

2G parameter  consistency

4 Measures SRVCC Threshold

• • • •

Based on Neighbor GSM coverage Based on Frequent handover band Based on neighbor GSM cell sample and signaling Strength Based Dual model phone, occupy LTE/GSM at same time

check

GSM

Heterogeneity neighbor 

NMS

One device in GSM in the same device in the same time

pairing

Dual Model Phone

NMS

One device in LTE in the same device in the

handover successful rate in Hangzhou improved by 5% 93.12% 88.76%

Key Learning 5: Service Driven FMC Practice TV/STB & VoLTE Video Calling

“Dual Cross”Network Cross country, cross province

MediaX

VoLTE for Video Customer Service

VoLTE for video monitoring

Mobile VoLTE Network CTAS

Open GW

Convergent Video Conference

Fixed VoBB Network CTAS

MediaX

VoBB AS

VoLTE AS/IP-SM-GW

HSS

IMS

IMS

HSS

SDM

IMS

MCU  A-SBC Fixed Device

Soft Terminal

 A-SBC

 A-SBC

 A-SBC

 A-SBC

 A-SBC

VoLTE

IPC

WebRTC

Fixed Phone

TV/STB

Common choice : Netherlands KPN, Brazil TIM

Mexico AM, Singapore Singtel, HongKong PCCW…

More Discussion about FMC Deployment Complexity Common IMS For both Fixed and Mobile Voice is NOT a technology issue

Operation: Need convergent O&M team expertise

CTAS

• CS Team manage both CS Core and VoLTE IMS, because xSRVCC synergy

VoBB Voice/Mobile Voice/SRVCC AS/IM-SSF

But…

IMS

 A-SBC

Fixed Phone

• Legacy fixed service inheritance • VoLTE Service e xperience • Fixed line cutover • xSRVCC • Routing configuration • Device integration • E2E provisioning • Roaming

• Fixed Team manage both TDM Swich / NGN / Fixed IMS for legacy service parity

IP network need to be integrated  A-SBC

VoLTE

VoLTE IMS & CS Core co-site HLR & HSS co-site SBC & EPC co-site

Service Agility Fixed Service Test case XXXX Software upgrading very few

Site A

Site B

IMS

IMS

IP Net

IP Net

Fixed

Mobile

Tri-Legs Couple Mobile Service Test case XXXX Software upgrading frequently for new service, new device

Contents VoLTE improve spectrum utilization Build up best experience VoLTE Network Accelerating 4G Migration

Huawei DSP, LTE/VoLTE Migration Accelerator  1. 4G/VoLTE Terminal Precise Promotion

2. SIM->USIM Quick Upgrading

3. 4G/VoLTE Service Automatic Activation

4. 4G/VoLTE Package Recommendation

SIM USSD

USIM

4G/VoLTE Terminal Penetration Improved

USIM Card Upgrading  Anywhere Anytime

4G/VoLTE terminal

USIM card

VoLTE Switch

LTE/VoLTE Service Enabled  At the Best Time

Personalized Promotion Traffic Stimulation

Boosts 4G subs for Thailand TRUE Some use case of DSP

Make effort in TRUE Precise

LTE terminal promotion

Marketing

Business Value 45

46

50

Jan

Feb

location & device brand & SIM card promotion messages

Easy

to Change SIM Card

Two steps of self-service Less SIM > USIM USSD automatic change

DSP

BSS

600

5 minutes

300

“Service Hall”

Mar 



350  8800+ (True) 4G service automatic activation

Without DSP: 141K in 3 month

time consumption

2-3 hours More

Dec.

Speed

up Migration

 Apr 

800

May

With DSP: 1.7M in 3 months, 5.1M in 7 months AVG: 0.7M / Month

140K/3Months  1.7M/3months, 12 times

More ARPU=0.5$ for 4G subs / month

Fast Deployment

More revenue =0.5$*0.7M*12*12

12 Month  3 Month

= 50.4M$/year

Enlarge Indoor Service Coverage with Native VoWiFi

No Extra APP

Chipset supports VoWiFi by default

Reuse phone number 

Crystal-clear  HD Voice & Video

Incorporate VoWiFi and VoLTE into device

 Any WiFi  Accessible

Seamless handover 

Prefer the ePDG/IMS based solution

LTE

ePDG

 AAA

VoLTE&VoWiFi WiFi

Converged NW

The Business Driver of VoWiFi Coverage Improvement

MVNO Saving cost of air interface renting

Cost efficient Roaming Free calls from 200+ countries back to the U.S

Differentiate with iphone6 Multi-device, Seamless handover and HD voice Super iPhone6, Super 3 network

HK 

Multiple Device Service Receiving Call

Industry reference

VoLTE/VoCS +86138123

Simultaneous or Sequential Ringing

VoLTE/VoCS +86138001

Call: +86138123

VoWiFi +86138002

CTAS • •

VoCS +86138003

 Accepting call with a single published number. Simultaneous or sequential ringing to several terminals.

 APP or Web +86138004

Presentation as the Same Number  VoLTE/VoCS +86138123

Making Call

VoLTE/VoCS +86138001 VoWiFi +86138002 VoCS +86138003  APP or Web +86138004

From: +86138123

CTAS •

presentation the single published number.

•

Charging to the same number.

Huawei VoWiFi Global Footprint Till now,

26 contracts， 11 Commercial cases

EU

Central-Asia

UK

Sweden

Mongolia

Belgian Poland

 Austria Denmark

China

AP Thailand Thailand

ME Africa

South  Africa

Saudi

Saudi

Saudi

HK

LA Brazil

Thank you Copyright©2017 Huawei Technologies Co., Ltd. All Rights Reserved. Theinformationin thisdocument may contain predictive statements inclu ding, withoutlimitation, statements regarding the future financial and operating result s, future product portfolio,new technology, etc. There are a numberof factors that could cause actual results and developments to differ materially from those expressed or impli ed in thepredictivestatements.Therefore, suchinformation is provided for  reference purposeonly andconstit utes neither an offer noran acceptance. Huaweimay changethe information at anytime without notice.

Cloud Enterprise Communication on demand China Telecom: One Fiber + One Box + One Cloud = New packages of ICT Services Severing 300K Enterprise

55% revenue from Enterprise

Migrate 4 million users of on-premises enterprise PBX to cloud in 3 years

Plays

Services

IP Data

1 Play

Cloud PBX

2 Play

Comm.

Video Conf.

70% users migrate to 4G BW

Biz MD

Voice

2M

Minutes

Call Center  

Call Center 

10M

Seats

3 Play

Internet

Internet

20M

Monthly fee

Data

4 Play

Internal data

Internat

20M

Monthly fee

IT App

5 Play

Mobile data

Wireless VPDN

10M

data usage

6 Play

Video Conference

Video

20M

Minutes

7 Play

Cloud DC

DC data

100M

Resources

FMC、ICT Service Integration Voice

Fiber Cover 80% Enterprise

Various Terminals

Safe Console Hotline

ICT

Fiber Broadband Consolidation

 All kinds of Enterprise

China Mobile: 22,819 Users in 4 Months, CAGR 36% 77,424

56,428 41,126 29,974 22,819 9,595

14Q4

15Q1

15Q2

15Q3

15Q4

16Q1

200,000 users by the end of 2016 Benefits for enterprise:

Benefits for China Mobile:

•

Packaging with FBB for low VC endpoint cost

•

Boost user loyalty with convergent comm.

•

One-stop subscription from CMCC, worry-free

•

HD VC fills pipe and leads to FBB upgrade

•

No need of dedicated IT specialists

•

More cloud services, More revenue

•

Trustworthy multi-branch ICT solution

Target: 1500+ multi-national/provincial companies

http://www.chinamobile-uc.com/