1 © Nokia Siemens Networks Peter Merz

Radio Systems Research - Highlights University of Ljubljana 25th October 2011 Peter Merz – Head Radio Systems Nokia Siemens Networks

2 © Nokia Siemens Networks Peter Merz

World leading radio technology capabilities and competences

Nokia Siemens Networks invests in the future!

• Chief Technology Office:

• Research

• Industry Environment

• Innovation

• IPR

• Technology Roadmapping

• End-to-end orientation with Nokia

3 © Nokia Siemens Networks Peter Merz

Nokia Siemens Networks Research Scope

Research mission is to ensure that NSN has the technology base to be competitive and can serve its customers well in the future

Responsibility • Research and scout technologies

• Analyze E2E network architecture evolution

• Generate IPRs

• Manage NSN Design for Security, Reliability and Environment

• Steer partnering for long term technology development

Portfolio • ~20 % in long term research e.g.

Cognitive Radio, Future Internet… • ~70 % in strategic research

HSPA+, LTE, LTE-A, SON IP Networks, Web technologies, Service and ID management System on Chip. …

• ~10 % in business support Technology consulting, Security auditing

4 © Nokia Siemens Networks Peter Merz

We start from user needs, technology trends and business principles

Business model

User need

Technology

Regulation

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Co-operative Research for our customers’ benefit

University cooperation

World-class Partners

Collaboration with Development

Standardization Forums

Customer Collaboration

University Collaboration

Nokia Collaboration

World Class Radio Research

3rd party innovations

Research Alliances

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Holistic Radio Research

Standards Research

• Via “Home” Programs • Together with Nokia • High quality IPRs “Essentials” • Good standards

Product Research

Impact product roadmaps by unique RRM/SON features

demo latest technology e.g. Multi-RAT & Multi-Layer

Long Term Research

• Via funded projects • Together with partners • Early IPRs • Publications

Deployment Research

Joint Operator studies real deployments

derive recommendations Impact NSN portfolio

LTE HSPA GSM

Multi-Layer

Mul

tiRAT

Offl

oad

WLAN

7 © Nokia Siemens Networks Peter Merz

World Class Research & Standardization

Standards Research

• Release 10 completion • Concepts for Release 11 • Pre Studies for next Release(s) • Radio Performance Sim. • Advanced SON

Product Research

HetNet Traffic Steering Smart Phone Impacts

TD-LTE (BF, MU-MIMO) Small cell BTS concepts

Wideband RF studies Adv. LTE/SON demos

Mobile Backhaul

Long Term Research

• Advanced Relaying • FSU & Cognitive Radio • Device to device • Cooperative Concepts • Beyond 4G

Deployment Research

Traffic Evolution TCO Analysis

Energy Consumption Advanced feature studies:

Relays, Beamforming, C-RAN

LTE HSPA GSM

Multi-Layer

Mul

tiRAT

Offl

oad

WLAN

femto

8 © Nokia Siemens Networks Peter Merz

STANDARDS RESEARCH

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LTE Uplink spectral efficiency gains (Full buffer, FDD macro network, up to 4 BS and 2 UE antennas)

• Achieving decisive UL performance gains requires 4RX antennas per sector.

• Single cell IRC and limited backhaul MRC-based CoMP achieve comparable gains.

• UL JR-CoMP gives attractive Cell Edge and Sector SE gains and is recommended as part of an intra-site evolution.

• UL JR-CoMP does not require standard support, but standard support will further enhance UL JP CoMP performance.

• In 4RX per sector, R10 UL MIMO provides best Sector SE. This is in particular true for 16QAM UL.

• Combined UL JR-CoMP and UL MIMO is expected to further boost Sector SE.

Intra-site evolution

Combined CoMP & MIMO

will boost Sector SE!

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DEPLOYMENT RESEARCH

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Joint Operators Collaboration Project - Methodology

HSPA and LTE Long-term Radio Network Capacity Evolution Study

Multiradio Network Planning, Evolution and Performance

Evaluation Tool SNEPA

Radio Network evolution to meet requirements

Energy consumption

Total Cost of Ownership (TCO)

Network KPI: < 5% Outage - 256/512 kbps for HSDPA - 1 Mbps for DL LTE

Real network and site information of Operator City area

Advanced traffic forecast models Option 1: x 30 by 2018 Option 2: x 75 by 2018

Topics:

Deployment Options: •Macro upgrades to 6-sector •New Outdoor Micro BTS •Hybrid upgrade (macro & Micro)

Time horizon: • Mid-term (<2015) -> HSPA • Long-term (<2018) -> LTE

Target: Recommendations for Operator X radio network evolution mid- and long-term

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Example of case study for a European operator

• Example of network layout and upgrade levels in 2014 • Two iso-performance evolution paths are considered for TCO and Energy analysis

Path I Path II

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Long-term Radio Network Capacity Evolution Recommendations for European Urban study cases

First: Upgrading the existing HSPA and LTE macro sites with more spectrum, followed by 6-sector upgrades (based on capacity requiement and upgrade availability for site). Next: Deployment of new micro cells in the high traffic density areas

New LTE 1+1+1 BTS at existing HSPA site Upgrade to LTE 2+2+2 BTS

New LTE Micro cells inband/ outband

Upgrade to 6-sector

LTE

Upgrade to 2nd carrier

Upgrade to 6-sector

New HSPA Micro cells in most traffic dense areas

HSPA

Upgrade to 4th carrier

Upgrade to 3rd carrier Existing 1+1+1 HSPA sites

The take-up time of LTE (& off-loading of HSPA)

strongly depends on the LTE terminal availability!

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ADVANCE RADIO DEMOS

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Use Cases for Demonstrator Fast Learning Effective Training Attractive Demo

Early ramp-up of detail technology knowhow and implementation experience

Company-internal propagation of expertise

Catchy illustration of customer benefits and

end user perception

Research and Standardization

System Engineering, Product Management,

Technical Sales

Marketing and Customer Commmunication

Product Research: New Feature Workshops

NSN Academy: LTE Training Courses

Customer demos in SECs On-site customer demos by

regional sales and marketing Roadshows and exhibitions e.g. MWC, CTIA, MBW …

Experimental research on snapshot views

Proof of feasibility and effectiveness of features in progress

16 © Nokia Siemens Networks Peter Merz

Simulation Landscape

• Link Level Simulations ▪ Baseband Signal Processing ▪ E.g. Channel Estimation, Receiver, Channel Coding, etc. ▪ Typically single cell, single terminal, no mobility

• System Level Simulations ▪ Radio Resource Management (abstract Layer1) ▪ E.g. Link Adaptation, HARQ, QoS Scheduling, Power Control ▪ „Quasi stationary“, network configuration does not change ▪ Typically single RAT, with/without mobility

• SON Level Simulations ▪ SON, MDT, Traffic Steering ▪ If >10min simulation runs are needed (hours, days) ▪ Abstracted RRM/QoS, accurate HO models ▪ Multi-RAT, full mobility, changing traffic…

• Network Planning Level Simulations ▪ Pathloss and Shadowing, that‘s it ▪ No QoS, no RRM, no Mobility

<<1µs signal

(sub)sample level

~1ms subframe

level

~50ms measurement

level

?? static?

1e6x realtime

>100x realtime

<1x realtime

n/a

Granular Runtime

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Heterogeneous Network (Macro + 6*Pico) with Range Expansion and TDM eICIC

Step 1 Step 2 Step 3

throughput per User

sum throughput

only few users gain strongly

all users gain significantly

Step 1 before pico cell deployment: all UEs in macro cell Step 2 simple pico cell deployment: only few UEs connect to pico cells and achieve strong gain Step 3 Enhanced pico cell configuration with range expansion and TDM eICIC: more users connect to pico cells, and inter-layer interference is effectively mitigated, improved load and throughput balance,

18 © Nokia Siemens Networks Peter Merz

LONGTERM RESEARCH

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Up to 1000 times more capacity by means of

1000x capacity

10x Performance

10x Spectrum

10x Base stations

20 © Nokia Siemens Networks Peter Merz

Gigabit Experience – Beyond 4G Reliable, Efficient and Personal

Unified Radio Resource

Management

Cognitive Networks

Liquid Radio Wideband Multiradio

Multi- Standard

Heterogenous Networks

Self Organized Networks

Ubiquitous Connectivity

Multi- Carrier

Active Antennas

Beyond 4G http://blogs.nokiasiemensnetworks.com/news/2011/08/24/beyond-4g-networks/

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Recent Nokia Siemens Networks White Papers

http://www.nokiasiemensnetworks.com/whitepapers

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Sharing our radio knowledge with the industry & academia

• Over 100 conference papers or articles in technical journals annually

• Over 20 other books on technology by NSN/Nokia authors, e.g.: – Dedicated LTE book – IMT-Advanced Concepts

23 © Nokia Siemens Networks Peter Merz

Questions

Thank You! www.nokiasiemensnetworks.com Nokia Siemens Networks GmbH & Co. KG St.-Martin-Str. 76 81541 Munich Germany

Peter Merz Head Radio Systems peter.merz@nsn.com Mobile +49 160 9720 6676 Phone +49 89 5159 31087 Fax +49 89 5159 44 31087