30 November 2019site.ieee.org/.../12/5G-Voice-MeetaThakur_Ericsson-RD.pdf · 2019-12-11 · —...
Transcript of 30 November 2019site.ieee.org/.../12/5G-Voice-MeetaThakur_Ericsson-RD.pdf · 2019-12-11 · —...
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5G Voice 2019-11-26
© Ericsson AB 2018 1
5G Voice
30 November 2019
Meeta Thakur
Principal Engineer
Ericsson R&D
Meeta Thakur | 2019-11-26 | 5G Voice | Page 2
5G 2G/3G
New revenues
Different Economics
Continued demand for operator voice
Smartphone Revolution
Voice Service Evolution Multi-Device
Multi-Persona
Work
Community
Private
Group Number
Adam
Bert
Charlie
Automotive Industry
New Distribution Channels
Building Construction
Industry
Intercom
AR / VR
Mission Critical
Comm.
Voice User Interface (VUI) New Use-Cases
Industry & Medical
Haptic Comm.
BOTS
eCall
Elevator alarm/voice button
Emergency/service call button
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5G Voice 2019-11-26
© Ericsson AB 2018 2
Meeta Thakur | 2019-11-26 | 5G Voice | Page 3
Introduction
— 5G is driven by the ever increasing need for higher data speeds and new services
— But voice also important for
1) High 5G data speeds in smartphones
2) Support for new 5G specific use cases
3) CS legacy phase out
— IMS continues as the voice service engine
— Full VoLTE service set also in 5G
— 5G voice introduction starts with VoLTE
— 5G coverage initially with high frequencies only
— VoLTE needed as fallback
Meeta Thakur | 2019-11-26 | 5G Voice | Page 4
— Most initial 5G deployments are using medium
to high frequency bands
— New bands for higher data speeds
— Challenges with voice on high frequencies
— High free-space propagation loss
— High diffraction loss
— High wall penetration loss
— Solutions to overcome 5G coverage issues
— Dual connectivity with a lower 4G band
— Fallback or handover to a lower 4G band
— Carrier aggregation with a lower 5G band
Voice on high frequencies
x
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5G Voice 2019-11-26
© Ericsson AB 2018 3
Meeta Thakur | 2019-11-26 | 5G Voice | Page 5
5G voice evolution steps
1. Dual Connectivity (EN-DC) April 2019 VoCS
LTE to CS HOVoLTE
NR NR NR
Dual Connectivity
2. EPS Fallback Q2 2020
VoCS
LTE to CS HOVoLTE
NREPS Fallback
3. Voice over NR Q3 2020
VoCS
VoLTE
VoNR
LTE to CS HO
NR to LTE HO
VoNRLTE to NR HO
Voice in 5G System (5GS)
Meeta Thakur | 2019-11-26 | 5G Voice | Page 6
Voice in 5G System (5GS)
Voice Solutions
1. Dual Connectivity (EN-DC) 2. EPS Fallback 3. Voice over NR
• LTE for voice while using NR as a
data boost
• Data over NR may optionally be
stopped during calls in order to ensure
enough uplink power for voice over
LTE on cell edges
3GPP Opt.3 3GPP Opt.2 3GPP Opt.2
• NR for data but falling back to LTE
(for voice and data) when making
or receiving calls
• Data over NR may optionally be re-
established after EPS-FB (with EN-
DC)
• EPC and 5GC with N26 interworking
and IP address preservation in 5GC
Data
Voice
Data
S G
IMS
B LTE
S G
EPC
B NR
Data
B NR
S G
IMS
S G
5GC
Voice
• NR for both voice and data
• NR dimensioned for voice coverage
• Seamless handover between 5G and
4G (and WiFi)
- No handover/fallback from 5G to
CS
B LTE
S G
MME
SGW
S G
IMS
S G
5GC
B NR
Legend
Legacy VoLTE/LTE
Impact from 5G voice
N26 (S10) IRAT HO
Voice
Data
B LTE
S G
MME
SGW
N26 (S10)
EPS-FB
April 2019 Q2 2020 Q3 2020
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5G Voice 2019-11-26
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Voice solution versus 5G build out
2. Local
continuous NR
coverage
NR
NR
NR
NR
NR
NR
NR
NR NR
NR
NR NR
NR NR
NR NR NR
NR
NR NR
NR
NR NR
NR NR
NR NR
NR NR
NR
NR NR
Voice over NR with IRAT
handover to/from VoLTE
Voice over NR
LTE
LTE
LTE
LTE
LTE NR NR NR
NR NR
NR NR
NR NR
NR NR
NR NR
NR NR
NR NR
NR NR
NR
1. Local spotty
NR coverage
Dual Connectivity
or
EPS Fallback
LTE
LTE
LTE
LTE
LTE
NR
NR NR
NR
NR NR
NR NR
3. Full national
NR
coverage
Meeta Thakur | 2019-11-26 | 5G Voice | Page 8
2020 2021 2019 2018 2022 2023
Spectrum allocation over time
4G
5G
3G
2G New 5G spectrum for
increased data capacity
First 5G voice deployments (EN-
DC) on 3.5 GHz (5G) and 2.6 GHz
(4G) 5G
Low bands (sub 1 GHz)
High bands (up to 40 GHz)
Mid bands I (1 GHz - 2.6 GHz)
Mid bands II (3.5 GHz - 6 GHz)
New 5G low band spectrum
for improved IoT & voice
coverage
2G/3G spectrum migrated to
5G as licenses expires etc
t (Yr)
f (Hz)
5G
5G
More spectrum combinations
supported by RAN and
devices, first deployments for
EPS FB and later on VoNR
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5G Voice 2019-11-26
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Mobility and call continuity use cases 1(3) Dual Connectivity (EN-DC)
EN-DC with VoLTE
SRVCC
EN-DC with CS Fallback
CSFB
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Mobility and call continuity use cases 2(3) EPS Fallback
Fallback with consecutive handover
EPS-FB
SRVCC
B
B
5G
4G
2G/3G
EPS-FB
B
4G
5G
Dynamic spectrum sharing
Fallback between shared 5G-4G carrier with
consecutive handover
5G
SRVCC
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5G Voice 2019-11-26
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Mobility and call continuity use cases 3(3) Voice over NR
Consecutive handover case Indoor coverage case Low spectrum handover case
5G-4G HO
SRVCC
4G-5G HO 5G high/mid band to
5G low band HO
Meeta Thakur | 2019-11-26 | 5G Voice | Page 12
Real-Time Gaming - While calling
- In-game calling with QoS Augmented Reality
Spatial Audio
New and enhanced multi-media communication opportunities with 5G
Bandwidth
(Gbps)
1 / Latency
(ms)
360/Spherical Calling
Video Comm. Capacity
Hologram Comm.
Virtual Reality
Mission Critical Comm. Voice Steering (VUI)
Voice Steering (VUI) Enhanced
Interactive Control & Supervision - Drone control, autonomous driving
- Industrial/medical remote applications
- Haptic (touch) communication
Voice Translation
HD Voice
HD+ Voice
SMS
MMS
Video Comm.
5G
4G
5G 4G
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5G Voice 2019-11-26
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Meeta Thakur | 2019-11-26 | 5G Voice | Page 13
IMS data channel 1(2) 5G real-time interaction
QoS
5G Core & IMS
Human QoS
Machine
Voice – 5QI-1
Video – 5QI-2
IMS Data Channel (new) – 5QI-x (higher priority than 5QI-9/Internet)
4G real-time communication 1) Hear/Talk
2) Read/Write
3) See
5G real-time interaction 1) Hear/Talk
2) Read/Write
3) See
4) Touch/Feel
5) Move/Control
Meeta Thakur | 2019-11-26 | 5G Voice | Page 14
IMS data channel 2(3) New real-time interacting services
Low Latency
High Throughput
Mobility
HD Audio/Video
Binary data (New in 5G)
Global find & connect
End-to-end encryption
Authentication
Device Onboarding
Session Management
Quality of Service
Session Robustness
NR
& 5
G C
ore
IM
S
Remote haptic control VR with collaboration Machine control Remote Health
AR with control Drone Steering Remote Surgery Remote support
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5G Voice 2019-11-26
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Meeta Thakur | 2019-11-26 | 5G Voice | Page 15
IMS data channel 3(3) Extend telephony with real-time interactivity in 5G
IMS Data
Channel
Browsified Native
Phone Dialer
+
Extend telephony with:
In-call screen sharing
In-call photo album sharing
In-call co-browsing
In-call co-editing
In-call document signing
In-call gaming
In-call AR/VR
In-call custom menus & UI
Any other web feature
More interesting and fun
consumer telephony with
media, gaming, AR, etc.
More meaningful
business telephony for
customer support,
collaboration, etc.
Meeta Thakur | 2019-11-26 | 5G Voice | Page 16
R2D2 sending a hologram message from
princess Lea in the 1977 movie Star Wars
Hologram communication From science fiction to reality in 5G networks
Youtube: Star Wars
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5G Voice 2019-11-26
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Meeta Thakur | 2019-11-26 | 5G Voice | Page 17
End-user values
Faster data speeds in
smartphones — 3-4 times faster than 4G
— Better quality in streaming videos etc
— Shorter delays for on-line gaming
Improved speech quality — EVS mandatory for all voice capable 5G devices
— High capacity in radio network allowing use of wider codecs
Improved security and integrity — 5G security also for voice and smartphone apps etc.
— Improved privacy protection, more difficult to attack,
trace, and move users to older (more vulnerable)
G’s
New services — Interacting with industrial, medical and entertainment
applications
— Talking and watching during haptic (touch)
communication sessions
— Futuristic services such as spatial codecs and
hologram communication
5G Improved video calling quality — Clearer picture and better lip synch
Reduced latency for on-line
gaming — Maintained gaming performance also when
answering calls
Meeta Thakur | 2019-11-26 | 5G Voice | Page 18
Operator values
Increased data revenues — Coverage boosted by migration of lower 2G/3G
spectrum to 5G
— 30% mobile traffic growth until 2024 of which 35%
from 5G smartphones
Reduced TCO — Substantial cost reduction from running fewer network
generations in parallel
— Shut down of either 2G or 3G near term
— Maintain only minimum capacity for roaming and
IoT until complete 2G/3G phase out is completed
New revenues from 5G specific
services — Real-time interactive services through IMS data
channel
— Industrial and medical applications, haptic (touch)
communication, drone control etc.
— Spatial audio codecs
Increased ARPU — Increasing part of early adopters and high spenders
— Who’s the better customer? Needs a new phone and:
a) Doesn’t care which generation it supports, or
b) Really wants the latest generation
Revenue growth from increased usage — Better capacity and performance for:
— Video calling, augmented reality, mission critical
communication, real-time translation etc.
— Improved and generalized authentication for secure
communication with non-SIM devices
Reduced risks and vulnerability — Stronger security reducing risks for fraud, cyber
attacks, penalties and bad publicity etc.
— Network slicing reducing risk for disturbances
between different customer segments
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5G Voice 2019-11-26
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35% of mobile data traffic generated by 5G smartphones by 2024
35%
5G
Ericsson Mobility Report, November 2019
https://www.ericsson.com/digital-services