Crsm 7 2009 Jens Gebert Alcatel Lucent

Slide 1

E3

May 11, 2009 Cognitive Radio: Industry Perspective

Cognitive Radio: Cognitive Radio: Industry PerspectiveIndustry Perspective

Jens GebertAlcatel-Lucent

First IBBT-MIT Joint Workshop on Cognitive Radio Standardization & Markets

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E3


E3 – Overview

E3 is an European Project on End-to-End-Efficiency under the 7th Framework Program of the European Commission, addressing the core of the strategic objective "The Network of the Future"

Top Level Objectives:

• Cognitive Radio System design

• Gradual, non-disruptive evolution of wireless networks

• Increased efficiency of wireless network operations

Project Duration:

• Jan. 2008 – Dec. 2009

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E3


End-to End Efficiency

Networkoperators (4)

Equipmentmanufacturers

(6)

Regulators (4)

Bell Labs Germany

project coordinator

BUPT

Academia / research institutes

(8)

E3 - Partners

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E3


Cognitive Radio Aspects: Evolution

Important Cognitive Radio Aspects from industry perspective: � Evolution of B3G systems to Cognitive Radio Systems� Support of heterogeneous standards� More efficient Joint Radio Resource Management (Short term)

⇒ Access Selection: Select the best radio access for a given user/session based on service requirements, radio conditions, network load, policies

Operator 2

Operator 1

3G Radio

4G Radio

WLAN

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E3


Flexible Use of Spectrum

Flexible use of spectrum

� Spectrum management for optimal spectrum usage

⇒ Dynamic Spectrum Allocation (DSA): • Spectrum control in the network

• Medium/long term radio resource optimisation

⇒ Dynamic Spectrum Selection (DSS): • Spectrum control entity in the terminal

• short term radio resource optimisation

Day 1: (Spectrumauction)

Operator A Operator B

Day X: Operator BOperator A

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E3


Flexible use of spectrum (cont.)

� 3GPP LTE-Advanced could use such Dynamic Spectrum Access

⇒ So far, no opportunistic spectrum access is addressed in 3GPPspecifications because licensed spectrum is assumed

⇒ However, this may change for LTE-Advanced due to possibly up to 100 MHz bandwidth

⇒ Initial technical studies in 3GPP make more or less reference to cognitive concepts, e.g. Dynamic Spectrum Access

� IEEE 802.22 Wireless Regional Area Networks (WRAN)

⇒ Focus on broadband access in rural areas, up to 100 km cell size⇒ Uses spectrum of vacant DTV channels in the

VHF and UHF bands (between 54 MHZ and 862 MHZ)

⇒ Uses spectrum sensing & management for effective coexistence and radio resource sharing with licensed services

⇒ Regulation requires e.g. the secondary users to vacate the channel within 2 sec once primary user is detected.

Examples for Flexible Use of Spectrum

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E3


Reconfigurable Base Stations and Terminals

� Reconfigurable base stations⇒ Base Station Configuration and Reconfiguration to

maximise the networks efficiency

LTE5 MHz

LTE15 MHz

UMTS UMTS UMTS

UMTS

Multi Standard Base Station

UMTS

LTE

LTE

Multi Standard Base Station

UMTS

LTE

LTE

� Reconfigurable terminals

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E3


Cognition Enablers

Cognition enablers - Especially for environmentwith flexible spectrum management⇒ Cognitive Pilot Channel

• Distributes information on available radio accesses and their spectrum

⇒ Cognitive Control Radio• Exchange of Cognitive Control

information between terminals

⇒ Spectrum Sensing

RAT_TYPE = GSM, UMTS, WiMAX, LTE…

COVERAGE_EXTENSION = LOCAL/GLOBAL

FREQ_LIST

COVERAGE_AREA (optional)

OPERATOR_INFO

RAT_LIST

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E3


More than Cognitive Radio: Self-X and Cognition in Radio Networks

Self-X: Self-configuration, Self-optimisation, self-healing⇒ for single-RAT networks

as well as heterogeneous networks⇒ Spectrum selection, inter-cell interference coordination⇒ Cell-outage compensation, cell self-reconfiguration⇒ Handover optimisation, load balancing

operational

mode

optimised

radio

parameters

self-optimisation

Performance

monitoring

deployment of new

cells & nodes

self-configuration

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E3


The pillars of the architecture

RCM

Reconfig-uration

Control and Management

JRRMJoint Radio Resource

Management

RadioTechnologySpecific

MultiRadio

Multi / Meta

Operator

Vendor Specific SW/HW

Single Operator

ASCM

Autonomic and Self-organizing Cognitive

Management

DSM/DSADynamic Spectrum

Management

CPC CCR

SSRRMRadio

ResourceMgmt

Cognitive Pilot Channel

Cognitive Control Radio

Cognitive Pilot Channel

Spectrum

Sensing

DSNPMDynamic and

Self-organizing Network Planning and

Management

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E3


SGSN

ePDG

SAE ServingGateway

MME

SAE PDNGateway

HSS

Single-Receiver Terminal, reconfigurable

Multi-ReceiverTerminal

FBS: Flexible Base Station

Core Network

PCRF

Operation & Management

BSC

RNC

FBS

RadioAccess

FBS

WLAN

Heterogeneous Wireless System and Functional Building Blocks

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E3


Regulation/Standardization and E 3

E3Fields of Interest

in Standardization

Regulation

Radio

Equipment

Architecture

and Interfaces

Autonomic and

Cognitive

Management in

Radio Systems

System

Architecture

and Interfaces

Specification

Techniques for

Radio

Development

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E3


E3 involvementE3 involvement

Regulation: ITU WP 1B on CR E3 monitorsITU-R WP5A on CR E3 contributes

Autonomic and Cognitive Management:ETSI RRS WG3 (CPC)E3 leadsIEEE SCC41 P1900.6 E3 contributes

System Architecture and Interfaces:IEEE SCC41 P1900.4 E3 contributesETSI RRS WG3 (FA) E3 leads

Radio Equipment Architecture and Interfaces:ETSI RRS WG2 E3 contributesSDR-F (Digital RF) E3 leads

Specification Techniques:OMG, SDR-F, OMA, E3 contributesACF

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E3


This work was performed in project E3 which has received research funding from the Community's Seventh Framework program. This paper reflects only the authors' views and the Community is not liable for any use that may be made of the information contained therein. The contributions of colleagues from E3 consortium are hereby acknowledged.

Thank you!Thank you!

Acknowledgement

Crsm 7 2009 Jens Gebert Alcatel Lucent

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