A System OverviewA System Overview - docbox.etsi.org · A System OverviewA System Overview Dr ... (CR based WRAN PHY / MAC for use by license-exempt devices in TV white spaces,

Project Office C-PMSE • Robert Bosch GmbH | Sennheiser electronic GmbH & Co. KGc-pmse.research-project.de • [email protected]

C-PMSE – Improving frequency utilization and coexistence for PMSE systems

b iti dby cognitive procedures

A System OverviewA System Overview

Dr. Radu Circa (Bosch),( ),Dr. Axel Schmidt (Sennheiser)

A research project in co-operationof industry and science

Publicly sponsored by

Contents

1 ) M ti ti d Obj ti1.) Motivation and Objectives2.) C-PMSE Architecture3.) Wireless Audio Link and Radio Link Manager

C-PMSE Project Office • c-pmse.research-project.de • [email protected] | Robert Bosch GmbH | Sennheiser electronic GmbH & Co. KG07.12.2011, Radu Circa, Axel Schmidt

2

Motivation

Digital dividend 1 reduces usable spectrum by 18%• Digital dividend 1 reduces usable spectrum by 18%

TV primary PMSE secondaryGMS/UMTS/LTE

UL DL

f [MHz]

TV primary, PMSE secondary UL DL

470 862790 880 915 925 960694502

Future Mobile Communication( i )

Digital Dividend 1

• Remaining spectrum becomes open for new services like e g white space

(primary user)

Remaining spectrum becomes open for new services like e. g. white space devices (WSD) => coexistence with new secondary services


3

Motivation

C i ti S i i UHF 470MH 790MHCoexisting Services in UHF 470MHz – 790MHz• Broadcasting

• DVB-T / T2DVB T / T2• DVB-H

PMSE• PMSE

• Communications• IEEE 802.22 (CR based WRAN PHY / MAC for use by license-exempt devices in TV

white spaces, coverage range < 100km)• ECMA-392 (CR based WLAN MAC / PHY for operation in TV white spaces)• IEEE 802.11af (WiFi in TV white spaces)• 3GPP LTE Advanced (Femtocells in UHF)


4

Motivation

N Sit ti f PMSENew Situation for PMSE• Less remaining useable spectrum

DVB-H470MHz 790MHz 862MHz

DVB-T

LTE-A

WSD

since 2011

LTE

remaining UHF spectrum

• New coexisting services with dynamic frequency allocationHigh potential of interfering with new TV band services due to their lower

since 2011remaining UHF spectrum

• High potential of interfering with new TV band services due to their lower sensing sensitivity

• BUT no acceptance of audible interferences (even very short ones)


5

Objectives

G t f th ll ti li bilit f PMSEGuarantee of the well-proven operating reliability of PMSE

De elopment of a cogniti e s stem demonstratorDevelopment of a cognitive system demonstrator• Platform for testing cognitive algorithms • Platform for testing cognitive hardwarePlatform for testing cognitive hardware• Development of low cost sensing device• Delivering measurement results to ETSI STF 386


6

C-PMSE Fundamentals

Content planeBase Station

Mobile Terminal

Link QualityIndicator

Local Portofolio Manager

Control plane

Radio LinkCognitiveScanning Radio Link Manager

CognitiveMaster

Scanning System

Service LevelAgreements


7

System Architecture

Scanning System

Radio Link Manager

CognitiveMaster


8

The Radio Part

T i bl kTwo main blocks• Radio link manager (RLM)• Wireless audio linksWireless audio links


9

Radio Link Manager

F ti l bl k f i i l di li kFunctional block for managing wireless audio links


10

Wireless Audio Links

T diti l FM li k f hi h lit l l t di t i iTraditional FM link for high quality low latency audio transmission• Additional wireless remote channel• Measurement fixture forMeasurement fixture for

monitoring transmission quality


11

Radio Link Manager

St t UStart Up


12

Radio Link Manager

St t U ( t )Start Up (cont.)


13

Radio Link Manager

St t U ( t )Start Up (cont.)


14

Radio Link Manager

O tiOperation

Panic casePanic case


15

Radio Link Manager

O tiOperation

User trigger caseUser trigger case


16

Radio Link Manager

O ti tiOperation proactive case

Proactive caseProactive case


17

Conclusion

New situation in spectrum occupancy and usage in UHF band• New situation in spectrum occupancy and usage in UHF band• New temporary broadband services like ECMA-392, LTE-Advanced, …• New services provided with a mechanism to reduce/avoid collisions with PMSE • No protection against audible interference for state-of-the-art PMSE devices

• PMSE become cognitive to increase operating robustnessg p g• New functionalities:

• LQI measurement• Remote control channel for control of mobile terminals during operationRemote control channel for control of mobile terminals during operation

• Panic reaction triggered by LQI decrease• Proactive reaction triggered by environment changes

• Additional scanning system to support proactive case• Increase of interference detection probability• Partitioning of operation area into several scanning clusters


18

Questions ?

AcknowledgementThe C-PMSE project is co-funded by the

German Federal Ministry of Economics and Technology (BMWi)German Federal Ministry of Economics and Technology (BMWi)

07.12.2011, Radu Circa, Axel Schmidt19

Documents

A System OverviewA System Overview - docbox.etsi.org · A System OverviewA System Overview Dr ... (CR based WRAN PHY / MAC for use by license-exempt devices in TV white spaces,