5g network evolution - ist2018.itrc.ac.irist2018.itrc.ac.ir/sites/default/files/presentation/5g...

5G Network Evolution

Haydar SAHINRAN Solution ArchitectERICSSON

5G Network Evolution | December 2018

What is 5G?

“Unlike previous 3GPP systems that attempted to provide a 'one size fits all' system, the 5G system is expected to be able to provide optimized support for a variety of different services, different traffic loads, and different end user communities”

3GPP TS22.261


What is 5G?

— In general terms 5G is the new use cases (or refreshed old ones) that can be carried over any suitable network.

— Radio access options: LTE, NR

— Core network options: EPC, NGCN

— NR: “5G New Radio” / “NR Radio Access” / “Next Generation Radio”

— NGCN: “Next Generation Core Network” a.k.a. “5GC”: 5G Core Network


2016 –LTE Traffic

World total: 6.5 Billion PB/mCommercial in confidence, © Ericsson AB 2018


2017 –LTE Traffic

Commercial in confidence, © Ericsson AB 2018

X8

2G/3G/4G Traffic

5G Traffic

2017 2023

Traffic Forecast


5G use cases and categories

Next Generation Mobile Networks


5G Data Rates

IMT / LTE-

Advanced

3G

HSPA

5G

2 Mbps

84 Mbps

300 Mbps

1 Gbps

?

4G / LTE

• More than 10 Gbps in specific

scenarios

• >100 Mbps generally available

in urban/suburban scenarios

• Tens of Mbps essentially

everywhere


5G Latency

5G must support very low latency without sacrificing efficiency for “conventional” applications


0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

2018 2019 2020 2021 2022 2023

Sh

are

of

site

s (%

)

Network evolution: 4G+5G

4G base capacity

4G expansion

4G expansion

4G expansion

Massive MIMO

5G NR

2018

2019

2020

20212022

2023

Rel

ati

ve lo

ad

per

sit

e

Load per site - based on existing grid

5G deployment starts with the most loaded sites–Urban area network example

Source: Ericsson modeling


4G base 4G expansion 4G expansion 4G expansion Massive MIMO 5G NR

Relative capacity and cost-efficiency per stepCost/GB

10Xhigher cost efficiency

Capacity

Spectrum re-farming (10-20Mhz per step)

Massive MIMO

Spectrum Efficiency

New Spectrum

Site expansions to bring significant capacity injections –at higher efficiency

Efficient network evolution

Massive MIMO step provides a much greater contribution to capacity, due to the high spectral efficiency


CAPACITY: Simplified

20 MHz * N LTE

* N

f =1.8 GHz

f = 2.6 GHz

f = 3.5 GHz

f = 28 GHz

Large capacity increase in NR from extra spectrum, so why do we need AAS?

NR

NR

400 MHz – 1GHz

100 MHz

Capacity and Coverage are related to S/N ratio and available spectrum (BW)

Max (Shannon) Capacity per communication channel: C= BW(1 + log2(S/N))

5 MHz *N WCDMA


CAPACITY: SImplified

f =1.8 GHz

f = 2.6 GHz

f = 3.5 GHz

f = 28 GHz

AAS combats the physics, with coverage and capacity benefits

AAS improves S/N with beamforming. AAS also exploits improved S/N with MIMO techniques to increase capacity

Legacy and AAS

S/N increases with •Number of Tx/Rx Antennas•Reduced Interference

• Beamform towards wanted Transmitter / Receiver • Nullform towards unwanted

•Antenna Gain •Transmit Power

AAS

S/N decreases with:• Higher frequency• Greater Distance• Obstacles/Buildings • Interfering users

Physics

S/N


The “beam” is adapted to the Radio Channel. Gets energy to intended receiver & reduces interference to others

A layer (or stream) of data is mapped to multiple antennas creating a radiation pattern, or beam

Many sub-elements controllable from baseband


Key functionality –Beamforming

Analog BF

• Analog phase shifters are used to steer the signal in time domain after D/A conversion

• TRP can transmit/receive beams in one direction at a time• Simple but inefficient use of spectrum• Beam management procedure introduced

Time

Digital BF

• Different BF weights can be applied to different antennas before D/A conversion

• TRP can transmit/receive beams in different directions simultaneous

• Most flexible and best performance• Facilitate multi-user connection, e.g. MU-MIMO

Time


CAPACITY GAIN potential: URBAN SCENARIO –NW IN ONE BAND

f =1.8 GHz

f = 2.6 GHz

f = 3.5 GHz

f = 28 GHz

d

DBF 64T64R, 32T32R , 8T8R

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

1x4x2 TRX, 8x1Subarray





Relative PDSCH Capacity vs 8T8R64T64R

32T32R

8T8R


3 GHz0 6 GHz1GHz

1.8

30GHz 100GHz10GHz

AAS to MEET customer NEEDS

39

Low band

• Large Antennas

• Good Coverage

• No AAS

Upper Mid Band

High Capacity with MIMO and new spectrum

Secure coverage on existing grid

High Band

• Vast spectrum for capacity

• Short Wavelength

• Beamforming gain essential for coverage

1.8

3.5

2.6

2.6

LTE

NR

3.5

28600-900

600-900

Lower Mid Band

• 3-5 times Capacity Boost with MIMO

• Improved coverage with Beamforming

“No need for AAS” “Triple capacity” “Use existing grid” “Exploit the spectrum where you need it”

4.8

Bring AAS to the Market with:

Performance from World leading

MIMO algorithms

Deployable, flexible and

Cost Efficient Architectures

Radios that support

Single or Multi-Band


2019 202020182017 2021 2022

5G spectrum and deployment5G starts on new frequency bands— High, mid and low bands— Initial deployement likely to be non-standalone

configurations in midband

5G interworking with 4G— Non-standalone configuration. Combination of 4G

and 5G is axpectes as traffic increases and new use cases

Migration to 5G in existing bands— Standalone 5G deployements will gradually get

access to 4G spectrum inmid-low band spectrum

High bands(24 GHz – 40 GHz)

Mid bands(1 GHz – 6 GHz)

Low bands(sub-1GHz)

Spectrum combinationexamples

5G

4G

3G

2G


Spectrum Strategy

5G on Mid-bandsDual connectivity with5G on mid bands

Shared low bandsIncreased coverage for wide-area & outside in coverage

5G on High bandsIncreased capacity and ultra low latency

Shared mid bandsMaximal coverage, capacity and cell edge performance

High bands (24 GHz – 40 GHz)

Mid bands (3.5 GHz – 8 GHz)

Mid bands (1 GHz – 2.6 GHz)

Low bands (sub –1 GHz)

Dual connectivity

Spectrum sharing

Carrier aggregation

Performance characteristics

BaselineCapacity and coverage

Cell edge performance

Capacity/Speed

Latency

2G, 3G, 4G 5G


Capacity/Speed

Latency


Capacity/Speed

Latency


Capacity/Speed

Latency


Capacity/Speed

Latency


nsa and sa

5G Enabled Core

(vEPC)

5G Core

(NGCN)

RAN

NSA(RAN split

LTE anchor)

Control

plane over

LTE

SA

Data

switch/agg.

LTE/NR

Control

plane over

NR

Data over

NR

Data

Ctrl

RAN

Tight interworking with LTEEvolved CN Fastest TTM

“Independent” overlay Totally new CN architecture Highest performance potential

Next Generation Core Network


5G Deployment OptionsTwoarchitecture tracksfor new radio in 3GPP rel15

Evolved EPC NextGen Core

LTE LTENR NR

Option 1(existing)

Option 3

Option 5

Option 7 Option 4

Option 2

S1-based New interface

LTE LTENR/EPC

LTENR/EPCNR/NXGC


5G coverage area for London planning exercise

Insert Confidentiality Level in slide footer

Case 1Non-standalone 5G

4G and 5G Basebands located in the same site

Case 2Non-standalone 5G

4G and 5G Basebands located in different sites

Case 3Standalone 5G

5G radio site connected directly to 5G Core

Selected cases for analysis

4G 5G

Illustration of how different frequencies and technologies can determine site deployment characteristics


Case – scenario 1(3)

4G + 5G4G

– Same transport, mast, rack and power supply with no additional footprint

Re-use radios

Re-use baseband

Re-use site and transport

5G or mixed-mode functions

Non-standalone . Expand Ericsson Radio System with 5G components . Same frequency . Moderate capacity

4G functions

* Mixed-mode configurations dependent of bands and carriers combination


— Reconfigure existing


4G + 5G4G

– Keep existing 4G radios

– Add new 5G radios


Add new co-sited radios

Re-use baseband


* Mixed-mode configurations dependent of bands and carriers combination

4G functions 5G or mixed-mode functions

Non-standalone . Expand Ericsson Radio System with 5G components . Different frequency . Moderate capacity


— Keep 4G baseband

— Add Baseband


4G + 5G4G

– Keep existing 4G radios

– Add new 5G radios e.g


Add new co-sited radios

Re-use baseband


4G functions 5G or mixed-mode functions

Non-standalone . Expand Ericsson Radio System with 5G components . Different frequency . High capacity


5G NR strategy

First with 5Gto be first, stable NSA and SA,

Spotty NR deployment with very basic

mobility, basic scheduling…

Performance and CapacityEnhanced mobility, High capacity,

Enhanced coverage, CA, enhanced

scheduling, UL spectrum sharing…

Enhanced performance &

OPEXOpti-enhanced energy efficiency,

Automation and machine learning for

operation

VoNR, shorter slot…

2018 Q3 2019 Q2 2020 Q1 2020 Q4

one step at a time


Consumers expect more from 5G– speed, coverage, reliability

2%

4%

4%

6%

5%

4%

10%

13%

13%

13%

26%

0% 5% 10% 15% 20% 25% 30%

Ability to connect almost…

Guaranteed quality of experience

Enable highest quality video streaming…

Enhanced security for personal data

Should enable better battery life on devices

Better responsivness and no delays to content

Better reliability when compared with 3G/4G

Will provide less expensive price plans

Better outdoor and indoor network coverage

Should have speed better than Wi-Fi networks

Should be many times faster than 3G/4G

Base: Smartphone users aged 15-65Source: Ericsson ConsumerLab, Towards a 5G consumer future, 2018

70%*expects better performance

*The No. 1 expectation on 5G, for more than 70 percent of consumers, relates to better performance (speed, coverage, reliability etc.)

Most important expectations among smartphone users globally from a technology like 5G


Consumers: Give us more with 5G!

Higher performance is the first and most relevant aspect of 5G to consumers

Lo

w

Av

era

ge

Hig

h

Within 5–6 yearsWithin 3–4 yearsWithin a year

Co

nsu

mer

inte

rest

leve

ls

VR Cinema

Live immersive gaming

Athlete and arena view

Gigabytes in seconds

Home sensor service

Connected robot

Virtual tactile shopping

Drone delivery

5G Early Alarm system

3D Hologram calling

Within 1–2 years

Real-time AR for vehicles

Self-driving technology

Real-time translation

Timeline for services to go mainstream

Note: Bubble size = Willingness to pay


5G industry digitalization and IoT opportunity

Industries willing to pay a premium5G digitalization of:

— Manufacturing

— Energy & Utilities

— Public safety

— Public transport

— Healthcare

— Media & entertainment

— Automotive

— Financial services

— Retail

— Agricultural

$619 billion market opportunity for service provider in 5G tech for industry digitalization, and IoT in 2026. Adding potential revenue growth of:

36%79% 70% 59%

Faster data speeds

Lowerlatency

Increased bandwidth

Source: Ericsson - The Industry Impact of 5G – Insights from 10 sectors into the role of 5G.


Deployment of top use cases

On average, over

70% of companies aim to have top use cases in production by 2021

60% 65% 70% 75% 80% 85%

Automotive

Energy & Utilities

Public Safety

Manufacturing

Public Transport

Healthcare

Financial Services

Media & Entertainment

Retail

Agriculture

Attitudes of decision makers in 10 industries

Source: Ericsson, The industry impact of 5G - Insights from 10 sectors into the role of 5G, 2018


5G Radio Technology Areas

Extension to higher

frequencies

Multi-antenna technologies

Beam-

forming

for coverage

Multi-user

MIMO

for capacity

Multi-site coordination

…

Ultra-lean designAccess/backhaul integration Device-to-device

communication

Spectrum flexibility

• Unlicensed

• Shared

licensed

• Network

sharing

Duplex

Flexibility

Spectrum

sharing

5g network evolution - ist2018.itrc.ac.irist2018.itrc.ac.ir/sites/default/files/presentation/5g...

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