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Next Generation RAN Architecture Sam Luu TELUS Associate Director, Technology Planning and Strategy Manager
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Next Generation RAN Architecture - Alliance for ... Gen RAN Architecture...Next Generation RAN Architecture Sam Luu TELUS Associate Director, Technology Planning and Strategy Manager

Jul 08, 2018

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Page 1: Next Generation RAN Architecture - Alliance for ... Gen RAN Architecture...Next Generation RAN Architecture Sam Luu TELUS Associate Director, Technology Planning and Strategy Manager

Next Generation RAN Architecture

Sam LuuTELUSAssociate Director, Technology Planning and Strategy Manager

Page 2: Next Generation RAN Architecture - Alliance for ... Gen RAN Architecture...Next Generation RAN Architecture Sam Luu TELUS Associate Director, Technology Planning and Strategy Manager

TELUS Restricted and Confidential

Agenda

About TELUS

LTE Industry Challenges and in-building wireless data experience

Understanding LTE Performance Characteristic

TELUS Wireless Data Findings

Page 3: Next Generation RAN Architecture - Alliance for ... Gen RAN Architecture...Next Generation RAN Architecture Sam Luu TELUS Associate Director, Technology Planning and Strategy Manager

TELUS Restricted and Confidential

About TELUS

TELUS announced its commitment to a full national launch of a next generation wireless service by early 2010 based on the latest version of High Speed Packet Access (HSPA) technology.

This initiative ensures a smoother transition to long term evolution (LTE) technology, the emerging worldwide fourth generation (4G) technology standard, as it becomes available.

Page 4: Next Generation RAN Architecture - Alliance for ... Gen RAN Architecture...Next Generation RAN Architecture Sam Luu TELUS Associate Director, Technology Planning and Strategy Manager

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Industry Commitment

Other announcements on LTE in North America and Internationally

Page 5: Next Generation RAN Architecture - Alliance for ... Gen RAN Architecture...Next Generation RAN Architecture Sam Luu TELUS Associate Director, Technology Planning and Strategy Manager

TELUS Restricted and Confidential

Industry challenges with wireless data networks

Data traffic is growing exponentially and clustering around in- buildings

– DoCoMo has experienced 70% of mobile calls occurring in building – “Much of that number can be attributed to mobile applications”

– PTS Sweden saw growth of 203TB to 2191TB of data in 2007 (Informa)– “Vodafone notes that data traffic increased more than tenfold in the 12 months to

end-March, compared with the preceding 12 months” Mike Roberts, Informa– “T-mobile reported a tenfold year-on-year increase in WCDMA/HSPA traffic in

1H07” Mike Roberts, Informa– “In 2008, the home environment will be responsible for 35% of all mobile data

traffic, and by 2013 it is expected to predominate with an overwhelming 60%.” Malik Saadi, Informa

Page 6: Next Generation RAN Architecture - Alliance for ... Gen RAN Architecture...Next Generation RAN Architecture Sam Luu TELUS Associate Director, Technology Planning and Strategy Manager

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Industry challenges with wireless data networks

But the ROI is unclear for 4G high speed wireless networks– Data backhaul needs are potentially exponential, and potentially 3x the voice

cost– In-building solutions are equally as expensive than macro sites

Revenues are not growing exponentially with data traffic and the future business model is at risk if nothing changes

Future 4G investments and cost structures are difficult to justify with today’s data revenue models

Page 7: Next Generation RAN Architecture - Alliance for ... Gen RAN Architecture...Next Generation RAN Architecture Sam Luu TELUS Associate Director, Technology Planning and Strategy Manager

Understanding LTE

Page 8: Next Generation RAN Architecture - Alliance for ... Gen RAN Architecture...Next Generation RAN Architecture Sam Luu TELUS Associate Director, Technology Planning and Strategy Manager

TELUS Restricted and Confidential

How can operators engineer the network better with LTE?

Best effort link performance of OFDM and 3G systems are similar – close to the Shannon limit

Future LTE improvements will focus on interference-reduction through advance receivers and schedulers

In-building?

Pico?

Macro

Page 9: Next Generation RAN Architecture - Alliance for ... Gen RAN Architecture...Next Generation RAN Architecture Sam Luu TELUS Associate Director, Technology Planning and Strategy Manager

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Macro level cell splitting doesn’t solve the problem

Page 10: Next Generation RAN Architecture - Alliance for ... Gen RAN Architecture...Next Generation RAN Architecture Sam Luu TELUS Associate Director, Technology Planning and Strategy Manager

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LTE and HSPA comparison in a macro environment

25% downlink gain with LTE (1x2) over HSPA R7 (1x2)– ~6 to 7% gain due to Interference Rejection Combining (IRC)– ~18-19% gain due to Frequency/Time Selective Scheduler and higher BW efficiency

2x uplink improvement with LTE (1x2) over HSPA R7 (1x2)– Macro environment: LTE: 0.7 bps/Hz (1x2) vs 0.34 bps/Hz HSUPA R7 (1x2)

Page 11: Next Generation RAN Architecture - Alliance for ... Gen RAN Architecture...Next Generation RAN Architecture Sam Luu TELUS Associate Director, Technology Planning and Strategy Manager

TELUS’ Wireless Data Findings

Page 12: Next Generation RAN Architecture - Alliance for ... Gen RAN Architecture...Next Generation RAN Architecture Sam Luu TELUS Associate Director, Technology Planning and Strategy Manager

TELUS Restricted and Confidential

3G and WiFi traffic comparison

WiFi data usage is on par with the larger 3G network with 200 TB traversing the network in 2007

TELUS WiFi hotspots indicates our 3G network in-building usage has room to grow – WiFi hotspots carry 10x the volume 3G hotspot usage

Growth in 3G hotspots is exponential in nature, doubling or quadrupling every year

Hotspot traffic is forecasted to surpass our 3G macro network capacity by 2012

Current Traffic Projected Traffic

Exponential Sectors

0

100,000200,000

300,000400,000

500,000600,000

700,000

Nov-05Mar -0

6Ju l-06Nov-06Mar -0

7Jul-07Nov-07Mar -0

8Jul-08Nov-08Mar -0

9Jul-09Nov-09Mar -1

0Jul-10Nov-10Mar-1

1Ju l-11Nov-11Mar -1

2Jul-12Nov-12

Usag

e (M

B)

Poly. Grow th (deg 4)

Data

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3G traffic concentration – as an example

50% of the total daily traffic is carried by ~10% of the sectors

50% of the total daily voice load is carried by ~25% of the sites

Page 14: Next Generation RAN Architecture - Alliance for ... Gen RAN Architecture...Next Generation RAN Architecture Sam Luu TELUS Associate Director, Technology Planning and Strategy Manager

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3G traffic clusters around commercial buildings

Page 15: Next Generation RAN Architecture - Alliance for ... Gen RAN Architecture...Next Generation RAN Architecture Sam Luu TELUS Associate Director, Technology Planning and Strategy Manager

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Connection traffic is another area of concern

Sites Address# Times

Peak per day

ON0421 Toronto - Union Station Overload

ON0175 Toronto - King St W/Bay St High

ON0423 Toronto - Front St W/Spadina Ave High

ON1775Mississauga - Burnhamthorpe/Hurontario High

ON0177 Toronto - College St/University Ave High

ON0422 Toronto - Convention Centre Low

ON0053 Toronto - Hwy 400/Hwy 7 Low

ON1099 Toronto - Bay St / Queen St West Low

ON0030 Toronto - Pearson Airport None

ON1097 Toronto - Yonge St/Queen St None

ON0175 Toronto - King St W/Bay St Low

Connection oriented traffic is beginning to stress the system

Page 16: Next Generation RAN Architecture - Alliance for ... Gen RAN Architecture...Next Generation RAN Architecture Sam Luu TELUS Associate Director, Technology Planning and Strategy Manager

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What is mobile data being used for?

What type of data is actually consumed?– Mainly on laptops/data cards by volume– High connection volume originate from smart phones

Why?– Driven by predictable pricing– Wide coverage availability – Connection simplicity

Implications– Mobile data consumption is accelerating as data prices decline– Operators are not attracting usage with content (by data volume)

Mainly peer to peer content

Data Value does not equal Data Volume

Corporate email relatively small by volume

– Operators need to protect high value services from abuse

Page 17: Next Generation RAN Architecture - Alliance for ... Gen RAN Architecture...Next Generation RAN Architecture Sam Luu TELUS Associate Director, Technology Planning and Strategy Manager

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Key Messages

Future 4G investments and cost structures are difficult to justify with today’s data revenue models

LTE improves the spectral efficiencies over HSPA, however performance come from significantly improving the RF – vendors offering macro cell alternatives can encourage ‘4G’ investments by operators

Operators can leverage their network knowledge to protect their high value users and cost effectively address network growth (using something other than macro cells)

Page 18: Next Generation RAN Architecture - Alliance for ... Gen RAN Architecture...Next Generation RAN Architecture Sam Luu TELUS Associate Director, Technology Planning and Strategy Manager

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questions

Page 19: Next Generation RAN Architecture - Alliance for ... Gen RAN Architecture...Next Generation RAN Architecture Sam Luu TELUS Associate Director, Technology Planning and Strategy Manager