futurespectrummanagementtechniques v2.21final 090630 · 2010-04-21 · oracle bpel process engine...

Spectrum Management Tools and Techniques 2.020 Trial for an outlook to the next decade

Lichtenau, July 1st, 2009

Introduction

2 © 2009 by LS telcom AG The Future of Spectrum Management Techniques

Agenda

State of the Art in Spectrum Management

Challenges Arising

Upcoming Technologies

Upcoming Tools

Summary


State of the Art I

Tasks of a Regulator Granting of access to the frequency resources for public and

interested parties

Allow Spectrum Usage at minimum distortion (~Interference)

Protection of existing licensed services and safety of life services

Protection of free frequency space from intruders and neighbors

Protection of border agreements


State of the Art II

Regulators Tool Set

Laws and Decrees

Band Restrictions

Licenses

Tools for Analysis&Admin Support

Available Technologies

International Agreements


State of the Art III

Analysis

Standard Processes (In-Country and International) (95%) ‒ One agreed propagation model (set) for a task, usually of statistical nature

‒ One set of simple & coarse data (terrain, clutter, rain, conductivity, …)

‒ Defined/Agreed Database of sites to consider

‒ Frequency selection often by first-come-first-serve or considering the customers wish

‒ Defined/Agreed fieldstrength or pfd levels at testpoints or defined borders

‒ Defined/Agreed assignment/coordination procedure

Advanced procedures (usually in-country only) (5%) ‒ Complex prediction models, often with deterministic components

‒ Usage of more detailed data

‒ Usage of advanced procedures with statistical frequency assignment rules



State of the Art IV

Admin Support One central database (70%)

Lots of Stand-Alone Databases (also besides to the central database) (70%)

Data Input manually, by file and partially via WEB

All data and software hosted on machines of the regulator

Most regulators computers have at least partially access to the Internet

Transparency rules demand that the regulator publishes lots of their database via WEB



Challenges Arising I

Increasing Spectrum Demand Open Broadband access everywhere, Fixed, Nomadic and Mobile

High Definition TV

Still rising Mobile communication demand

Non Civilian Usage increases:

‒ Remote controls

‒ Video surveillance

‒ Tactical Comms

Event Communication increases rapidly

New Services


Challenges Arising II

Technology Neutral Licenses Frequencies and whole Spectrum shall be granted for arbitrary technology

as long as band masks are obeyed

Method to overcome technology blocking of granted licenses: PmP and WiMax where no real success in some countries due to restrictions

Problem is to keep the definitions general

‒ Not blocking technology change

‒ Avoiding interference in neighbor bands and regions

Better Analysis and Measurement coverage may be required

Inter-Service Co-Ordination may be complex


Challenges Arising III

Technology Neutral Licenses: Band masks


Challenges Arising IV

Spectrum trading and secondary usage Re-Sale of granted frequency space will be widely in place

Allowing Re-Use of assigned Spectrum when business models do not pay out or demand is gone

Very different models in place and under discussion

‒ Simple trade of complete frequency or spectrum block

‒ Sub-Use of residual Spectrum (not for high availability services)

‒ Time Slot defined use (as implemented in SW-Broadcast since many years)


Challenges Arising V

Multitude of possible cases, Multiple chances for interference


Upcoming Technologies I

Distributed Spectrum Monitoring Systems Small, IP based units with Omni Antennas

Units are usually programmable, often based on a small Linux System

Reduces the effort of mobile campaigns and is permanently available

Costs usually substantially lower than for standard equipment

Provides permanent sensing capabilities with a narrow mesh

Measurement Location

TX Location


Upcoming Technologies II

t1 t1+Delta t Measurement Location

TX Location

Time Difference on Arrival Location without directive antennas Very old technology from World War II Used e.g. in Loran C navigation system and for mobile phone location

Delta t

Trigger Time to Trigger Time to

Trigger Event Trigger Event


Upcoming Technologies III

TDOA II With only 2 Measurement stations the location cannot be fixed

Possible TX Location


TX Location


Upcoming Technologies IV

TDOA III Case with 3 Receivers

Location possible

Possible TX Location


TX Location


Upcoming Technologies V

TDOA IV By instant recording even post-analysis

of problems is possible

At present, a complete supervision will still be complex: ‒ About 512 MB/4.5s@20MHz Bandwidth

‒ 1 MHz full recording will require 500GB/d

This will give completely new possibilities to regulators in liberalized bands ‒ Control of limit keeping

‒ Regulation of ad-hoc criteria: e.g. Interference Temperature concept

Example from Gunnarsson/Gustafsson:

With more receivers analysis becomes complex


Upcoming Technologies VI

Interference Temperature Granting of access for secondary services with defined withdrawal in case

agreed limits are reached

Stopped in 2007 but still under discussion in US for usage of “White-space”

Received Fieldstrength Licensed

TX Location Acceptable range degra-dation due to interference

Noise without new sources

Interference Limit Added sources contribution


Upcoming Technologies VII

Self Managing Devices/Cognitive-Software Defined Radios Systems are in use e.g. according to 802.11xx protocols

CSMA method (Carrier Sensing Multiple Access)

Start

Assemble Frame

Attempt

Other traffic in Channel?

Wait random

Transmit Frame

Collision detected?

Transmission finished?

Application

Presentation

Session

Transport

Network

Data Link Layer : CSMA…

Physical Layer 802.11x

End


Upcoming Technologies VII

Cognitive-Software Defined Radios (CR) according FCC:

Frequency Agility – The CR can change its frequency

Dynamic Frequency Selection (DFS) – The CR senses the occupancy and decides for a reasonable frequency

Adaptive Modulation – The CR uses the best waveform for the given task

Transmit Power Control (TPC) – Within given Limits, the power is automatically adapted to minimize interference

Location Awareness – The CR knows its location and licensed landscape

Negotiated Use – A negotiation protocol is used to agree with other CR’s on frequency usage and timing


Upcoming Technologies VIII

Cognitive-Software Defined Radios (CR): Coordination Approach by WINLAB using a control channel:

Proposal from:

The State University of New Jersey

Professor D. Raychaudhuri


Upcoming Technologies IX

White Space databases Where are which frequencies and which services when in use

Is the frequency open for secondary usage

Is use negotiable?

At which costs and restrictions? Time

Amplitude

Frequency

Frequency Whitespace

Timely Whitespace

Local Whitespace


Upcoming Tools I

SOA/WEB Services I Services are registered at a service broker

Communication is fully WEB transparent

Service Broker, Provider and Consumer can be completely distributed

Data Exchange happens via XML- based standard format

No restrictions for technology mix

Most tasks can be solved fully service oriented

Tool box of WEB services may be used as basis for user developed applications (SMS Middleware)

Service

Broker

Service

Provider

Service

Consumer

Service Registration

(WSDL)

Service Information

(WSDL)

Exchange of WEB-Services

(SOAP)


Upcoming Tools II

SOA/WEB Services II:Guessable Future

White Space

database

Monitoring

sensor

Monitoring

sensor

Monitoring

sensor

Cognitive

Radio

ITU

Databases

Regional

Databases

Regulator

SMS

Regulator

Users

Regulator

Stakeholder Private Calc.

Service

Military

Regulator

ITU Calc.

Services


Upcoming Tools III

SOA/WEB Services III Typical Example of such a system in a software assembly (Present)


Upcoming Tools IV

Cloud Computing (Software as a Service) All Application software is wrapped e.g. by Citrix

Access to software via simple WEB terminals

Terminals and server can be located at complete different places

Advantages:

‒ Simple software roll out

‒ Remote maintenance

‒ Remote operation

‒ Scalability in performance and license number

26

Upcoming Tools V

WEB access example for a small SPECTRA system

1 x

1 x

1 x

Database

SPECTRAplus App

SPECTRAemc

SPECTRAplan

SPECTRAplus DB

Terminal Server

Oracle DB Server

SPECTRAplus Application

Oracle App. Server

Client location(s)

WEBServer Fire

wal

l/ V

PN

Fire

wal

l/ V

PN

Server location

27

Upcoming Tools VI

Database

Access Manager Fi

rew

all/

VP

N

Service providers location

Client 1 location

Client 2 location

Clie

nt 1

Ser

ver

envi

ronm

ent

Clie

nt 2

Ser

ver

envi

ronm

ent

Cloud Computing (Software as a Service)

Maps/ Static data

Maps/ Static data


Upcoming Tools VI

Automated Processes Processes need to be defined and reproducible even when users are

changing

Configuration or programming of Business Processes by administrators

Automated, user defined background procedures (e.g. working as WEB service)


Upcoming Tools VII

Licensing Process

New Application

SPECTRAweb

SPECTRAplus

SPECTRAemc

SPECTRAplan

MONITORplus

ORACLE BPEL Frequency Assignment

Print Application Receipt

Calculate Fee

Technical Analysis

Load Channel Arrangement

National Coordination

International Coordination

ITU Notification

Technical Analysis Complete

Interference Analysis

Licensing

Technical

Monitoring

Finance

Departments

Modules / Systems

3rd Party Systems

ORACLE

BPEL

Process

Engine

BPEL Process Control

Wiz

ards

External Monitoring System

Rohde & Schwarz / Thales / TCI/ Grintec

Spectrum Monitoring

Monitoring Order

Measurment Result

External CRM System

e.g. Siebel, …

New Application Data Entry Address Data

Status Data

External Finance System

SAP, …ing

Print Proposal Invoice Data

Paid Issue License

Dep

artm

ents

Licensee


Summary

There will be significant changes in Policy and Technology Licensing will face

Technology neutrality Spectrum Trading Secondary/White Space usage

Cognitive Radio is under way but will unfold its significance mostly towards the end of the next decade due to price and availability

Monitoring will become a more important role in frequency assignment Interference Analysis will become more challenging Future SMS Software might look different:

More distributed systems Usage of Web services will better link the world

Users may develop their own tools based on SMS Middleware

Thank you for your attention!

Im Gewerbegebiet 31-33 D-77839 Lichtenau

GERMANY [email protected]

Tel. +49 (0)7227 9535 600 www.LStelcom.com


Disclaimer

Copyright (c) 2009 by LS telcom AG

This document must neither be copied wholly or partly, nor published or re-sold without prior written permission of LS telcom. The information contained in this document is proprietary to LS telcom. The information shall only serve for documentation purposes or as support for education and training purposes and for the operation and maintenance of LS telcom products. It must be treated strictly confidential and must neither be disclosed to any third party nor be used for other purposes, e.g. software development, without the written consent of LS telcom. This document may contain product names, e. g. MS Windows, MS Word, MS Excel and MS Access, which are protected by copyright or registered trademarks / brand names in favour of their respective owners. LS telcom make no warranty or representation relating to this document and the information contained herein. LS telcom are not responsible for any costs incurred as a result of the use of this document and the information contained herein, including but not limited to, lost profits or revenue, loss of data, costs of recreating data, the cost of any substitute equipment or program, or claims by any third party.

futurespectrummanagementtechniques v2.21final 090630 · 2010-04-21 · oracle bpel process engine...

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