philips research p aspen technology summit-21.05.98 page:1 low cost atm technology and wireless...

PhilipsResearch PAspen Technology Summit-21.05.98 Page:1

Low Cost ATM Technology and

Wireless Ad-Hoc Networks

Rolf KraemerRolf Kraemer

Philips GmbH Research Laboratories AachenPhilips GmbH Research Laboratories Aachen

[email protected]@pfa.research.philips.com


ContentContent

• Vision of an In Home Digital NetworkVision of an In Home Digital Network

• End to End ViewEnd to End View

• Embedded ATM Switching for Low Cost Embedded ATM Switching for Low Cost NetworksNetworks– Functional Switch DecompositionFunctional Switch Decomposition

– Single Chip ApproachSingle Chip Approach

– Distributed Software SystemDistributed Software System

• Wireless ATM as extension of Embedded Wireless ATM as extension of Embedded SwitchingSwitching

• Ad-Hoc W-ATM-LAN for Low Cost Broadband Ad-Hoc W-ATM-LAN for Low Cost Broadband IHDN IHDN


Vision of an IN-Home NetworkVision of an IN-Home Network

TV-Tuner

Monitor

Loudspeaker

Audio-Tuner

DVD

Scanner

Printer

Phone

VCR

TeletainmentGateway

CameraSpeechRecognizer

PC

LightControl

HeatingControl

In Home Digital Network

TV-Application

Home ControlSystem


End to End Service ChainEnd to End Service Chain

TV-TunerTV-Tuner

MonitorMonitor

LoudspeakerLoudspeaker

Audio-TunerAudio-Tuner

ScannerScanner

PrinterPrinter

PhonePhone

PCPC

LightLight

ControlControl

In Home Digital NetworkIn Home Digital NetworkTeletainmentTeletainment

GatewayGateway

DVDDVD

VCRVCR

CameraCamera

SpeechSpeech

RecognizerRecognizer

HeatingHeating

ControlControl

Pu

blic

Ne

two

rkP

ub

lic N

etw

ork

Inte

rne

tS

erv

er

Bro

ac

as

tT

V-S

erv

er

VO

DS

erv

er

OtherServers

OtherServersOther

Servers

OtherServersOther

Servers

OtherServers

HFCHFC

xDSLxDSL

PONPON

LMDS/MMDSLMDS/MMDS


““Embedded Switching System”: Requirements Embedded Switching System”: Requirements

• Scalability of System SizeScalability of System Size

• Linear Scalability of Cost with Number of PortsLinear Scalability of Cost with Number of Ports

• No Cost OffsetNo Cost Offset

• Scalability of Service ArchitectureScalability of Service Architecture

• Decentralised Signalling and Switch ControlDecentralised Signalling and Switch Control

• ““Graceful Degradation” Behaviour in Case of Graceful Degradation” Behaviour in Case of FaultsFaults


Functional PartitioningFunctional Partitioning 1/31/3

Port-Function

Port-Function

SwitchFunction

Control & Man.-Function

Observations:

•The Port Function is becoming increasingly complex (z.B. by ABR)

•Traditional Switch Concepts have too little Flexibility to support additional new services (e.g. Processor Speed problems)

•Switches are optimised on Throughput and not on Network operation



Switch Concepts:Switch FabricBus Based SwitchesDistributed Switches

Two main decisions have to be takenWhich Basic-Component have to be takenWhich connection topology is best suited for the basic component

Port-Function

Port-Function

SwitchFunction



Port-Function



The functional component is chosen such that one Port-, parts of the Switch-Matrix and parts of the Control-Function is within one Element

Transceiver

Sw

itchC

omp

System on Silicon decision :

Port-Function

SwitchFunction

Each Switch Component is a Mini-Switch with all necessary parts

TransceiverSwitchComp

Tra

nsce

iver

Sw

itch

Com

p

Transceiver SwitchComp

The connection topology is chosen such that a full switch consists ofa self healing double ring


Sample Device Connections Sample Device Connections

Transceiver

Transceiver

TransceiverTransceiverT

ransceiver

Multiport

Distributed VP/VCSwitch

PABX

Transceiver

Tra

nsce

iver

Tra

nsce

iver

Alarms

CameraPresenceDetector


Modular structure of basic componentModular structure of basic component

Local Bus

NW1in

NW1in

NW2in

NW2in

UNIin

UNIin

CentralCell

Memory

CentralCell

Memory

Trlout

Trlout

NW1out

NW1out

NW2out

NW2out

UNIout

UNIout

DMA/AALDMA/AAL Trl-RAMTrl-RAM

PI-buscontrol

PI-buscontrol

Bus-IOBus-IO RISC-CPURISC-CPU

POLPOL Trlin

Trlin

Trl/POL-RAMTrl/POL-RAM

Use

r N

etw

ork

Use

r N

etw

ork

PI-Bus


CMC-155 ChipCMC-155 Chip

Size: 144 mm2

Transistors: 1.98*106

Memory: 200 kbFrequency: 20MHzPins: 208Technology: 0.5 mSupply Voltage: 3.3 VCurrent: 0.4 A


Distributed Switch SoftwareDistributed Switch Software

Transceiver Transceiver TransceiverTransceiver

PSOS PSOS PSOSPSOS OS

Distribution Layer (SODA-Distr. OS)

Basic Switch Services

Switching Applicationsi.e. Signalling, Self Healing, etc.

Management Applicationsi.e. Configuration MM, Fault MM, etc

ServerServer

NICNICUser Switch Ports


Intelligent CablingIntelligent Cabling

Reliable DoubleATM Ring

Area: 200-700m2

ATMSwitch

PABX

Single-Chip ATM Processor (CMC155)

Distributed Software Architecture


In Flight EntertainmentIn Flight Entertainment

VOD-Server

Ring Interconnection

VOD-Server

Game-Server

Ring Interconnection

Office-Server

In-Seat-PCs


Fu

nc

tio

na

lity

CMC155Pro

CMC155/622Pro

CMC622Pro

CMC25/155Pro

CMC25/155Pro/NIC

CMC622/2400PRO

New Arch

CMC10000PRO

Time

CMC-RoadmapCMC-Roadmap

CMC: Corporate Multimedia CommunicationPRO: embedded ProcessorNIC: embedded SAR functions


Relation between UMTS and Wireless-ATMRelation between UMTS and Wireless-ATM

Indoors

Outdoors

Fixed

Walk

Fixed

Walk

Vehicle

Speed Mb/s

Mobility

0,2 2 20 200

UMTS/FPLMTS

Wireless-ATM


Standard Basestation ApproachStandard Basestation ApproachATM-Switch

MES

ATM-SwitchMES

ATM-SwitchMES

ATMRadioPort

ATMRadioPort

ATMRadioPort

ATMRadioPort

ATMRadioPort

ATMRadioPort

ATMRadioPort

ATMRadioPort

CellHand-Over

WATM-‘R’ RAL

ATM-NNI

BSC CellHand-Over


WATM-Protocol StackWATM-Protocol Stack

Phy: High Speed Radio

Medium Access Control

Data Link Control

Wire

les

s C

on

trol

ATM Network Layer

ATM Adaptation Layer

User Control

Wir

ele

ss

Co

ntr

ol

ATM Network Layer

ATM Adaptation Layer

UserControl

Phy: High Speed Radio

Medium Access Control

Data Link Control

Standard ATMPhysical Layer


Distributed Basestation ApproachDistributed Basestation Approach

Transceiver

ATMRadioPort

Transceiver

ATMRadioPort

Transceiver

ATMRadioPort

Transceiver

ATM-Switch

ATM-NNI

WATM-‘R’ RAL

Transceiver

ATM-UNI


CMC-Chip with MAC SupportCMC-Chip with MAC Support

PI-buscontrol

PI-buscontrol

RISC-CPURISC-CPU

Rad

io I

nter

face

PI-Bus

Bus-IOBus-IO

Control-Interface

Use

r N

etw

ork

NW1in

NW1in

NW2in

NW2in

CentralCell

Memory

CentralCell

Memory

NW1out

NW1out

NW2out

NW2out

DMA/AALDMA/AAL

Use

r N

etw

ork

Medium-Access (C-MAC)

Medium-Access (C-MAC) POLPOL Trl.Trl.

Trl/POL-RAMTrl/POL-RAMS-MAC-CPUS-MAC-CPU


Wireless ATM: Ad-Hoc ScenarioWireless ATM: Ad-Hoc Scenario

Ad-Hoc WATM

‘R’ RAL

ATM

‘M’ NNI

ATM

‘W’ UNI

WATMTerminal

WATMTerminal

WATMTA

WATMTA

ATM

‘W’ UNI

WATMTerminal

WATMTerminal

WATMTA

WATMTA

ATM

‘W’ UNI

WATMTerminal

WATMTerminal

Ad-HocEnabledWATM

TA

Ad-HocEnabledWATM

TA


CMC-Chip with AD-Hoc MAC SupportCMC-Chip with AD-Hoc MAC Support

PI-buscontrol

PI-buscontrol

RISC-CPURISC-CPU

Rad

io I

nter

face

PI-Bus

Bus-IOBus-IO

Control-Interface/ Interface to MT

CentralCell

Memory

CentralCell

Memory

Ext. DMA/AALExt. DMA/AAL

Use

r N

etw

ork

Medium-Access(C-MAC)

Medium-Access(C-MAC)

POL/Shapeing

POL/Shapeing

S-MAC-CPUS-MAC-CPU


ConclusionConclusion

• Low Cost ATM is not only feasible but already Low Cost ATM is not only feasible but already available (CMC concept)available (CMC concept)

• The distributed CMC-Concept allows the The distributed CMC-Concept allows the extension to WATMextension to WATM

• The building block approach of the CMC The building block approach of the CMC concept supports the stepwise extension concept supports the stepwise extension towards full AD-HOC WATM systemstowards full AD-HOC WATM systems

• A first CMC based WATM demonstrator has A first CMC based WATM demonstrator has been implemented (10Mb/s)been implemented (10Mb/s)

• First application will be in the office First application will be in the office environmentenvironment

• The final goal to support IHDN is in reachThe final goal to support IHDN is in reach

philips research p aspen technology summit-21.05.98 page:1 low cost atm technology and wireless...

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