© 2015 oneM2M

Presenter: Omar Elloumi, oneM2M TP Chair, Alcatel-Lucent (acknowledgment: the author thanks oneM2M members who provided input to this presentation)

oneM2M www.oneM2M.org

ONEM2M INTERWORKING AND SEMANTICS FRAMEWORK

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Over 200 member organizations in oneM2M

The Partnership Project

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200+ members organizations Some of the 200+ active members of oneM2M

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M2M Common Service Layer in a nutshell

• It is a software layer • It sits between M2M applications and

communication HW/SW that provides data transport

• It normally rides on top of IP • It provides functions that M2M applications

across different industry segments commonly need. Those functions are exposed to Applications via developer friendly APIs.

• It allows for distributed intelligence (device, gateway, cloud apps)

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oneM2M Architecture approach

Pipe (vertical): 1 Application, 1 NW,

1 (or few) type of Device

Point to point communications

Horizontal (based on common Layer) Applications share common service and network infrastructure

Multipoint communications

Local NW

Business Application

Device

Communication Network (wireline, wireless,

Powerline ..)

Gateway

Communication Network 1

Communication Network 2

Local NW

Gateway IP

Application

A

Application Application Application

Common Service Layer

Device

Device

Device

A S

A A

Device

A S

S Common Service Layer

S

A

Common Service Layer

A Application

Things

Things representations (including semantics)

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Underlying Network

Underlying Network

AE

NSE

AE

NSE NSE NSE

Application Service Node Middle Node Infrastructure Node

Application Layer

Network Layer

Architecture

AE

Application Entity Provides application logic for the end-to-end M2M solutions

Network Services Entity Provides services to the CSEs besides the pure data transport

Node Logical equivalent of a physical (or possibly virtualized, especially on the server side) device

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Underlying Network

Underlying Network

CSE

AE

NSE

CSE

AE

NSE

CSE

AE

NSE NSE

Application Service Node Middle Node Infrastructure Node

Application Layer

Service Layer

Network Layer

Mca

Mcn

Mca Mca

Mcn Mcn Mcn Mcc Mcc

Reference Point One or more interfaces - Mca, Mcn, Mcc and Mcc’ (between 2 service providers)

Common Services Entity Provides the set of "service functions" that are common to the M2M environments

Application Entity Provides application logic for the end-to-end M2M solutions

Network Services Entity Provides services to the CSEs besides the pure data transport

Node Logical equivalent of a physical (or possibly virtualized, especially on the server side) device

Architecture

CSE

Mcc’

Inf. Node

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Ongoing collaborations

Guidelines & Ref. Arch.

Protocols Platforms

MQTT

OMADM LWM2M

HTTP CoAP TLS DTLS

Uses/interworks

uses

uses

interworks with

collaborations

Source: N Damour, Sierra Wireless

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INTERWORKING AND SEMANTICS MOTIVATIONS (SMART CITIES EXAMPLE)

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Vision for building smart cities

2. Digitalize and «sensorise»

4. Expand the vision, Integrate

and Innovate

3. Build Dashboards

1. Build a

vision

Source: Based on discussions with Dr. Martin Serrano, Insight centre

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Smart cities: Challenge 1: integrate – role of open platforms

Source: CRYSTAL project/Philips

Platform based integration

Based on open standards

Provide interworking with underlying networks

Provide interworking with device technology

Home

Energy

Health

Automotive

Communication Devices & Hardware

Communication Technologies & Protocols

Common Service Layer

Communication Networks

Automotive Applications

Home Applications

Energy Applications

e-Health Applications

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Smart cities: Challenge 1: integrate – role of semantic interop

Common Service layer

things Things representation

Data (e.g. temperature)

Metadata

Semantic description

Other metada (e.g. digital right

management and privacy related)

instantiates

ontology

represents

Discovery – Consistency – Scalability - Efficiency

Source: AIOTI

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Smart cities: Challenge 2: innovate

How do I address the needs of app developers

• App developer focus on app logic: use of Restful APIs

• Hide WAN and Area Network technologies specificities (interworking exposed as a service by the platform)

• Hide device technology protocols (interworking exposed as a service by the platform)

• Free access to city open data – Controlled access to other data

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oneM2M Interworking example – home automation

Interworking Proxy Entity

AE AE

CSE CSE

Mca Mca

Mcc

IPE

Mca

OMA LWM2M

Source: Sierra Wireless

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Underlying network interworking example – 3GPP

Application Entity

oneM2M IN-CSE

Mca

Mcn(3GPP exposed

Interfaces)

Mcc NSSE

APIs APIs

OMA

SCEF

3GPP Network

Mcn (OMA APIs)

3GPP exposed

Interfaces

Trust

Domain

Other Underlying Network

TBD

Mcn (Other APIs)

APIs APIs

Other exposure

functionTrust Domain

(Mcn)

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LWM2M Interworking Reference Model

LWM2M Applications communicate with oneM2M Applications across

the Mca reference point.

LWM2M Application

CSE

LWM2M Protocol

LWM2M IPE

Mca

AE

Mca

ASN/MN/IN

CSE Mcc/Mcc’

MN/IN

2

• LWM2M Interworking aims at considering the association of a LWM2M Client and an Interworking Proxy Entity (IPE) as a oneM2M Application Entity (AE).

• oneM2M AEs discover LWM2M Objects and Object Instances as <container> or <flexContainer> resources using the labels associated with the resources.

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Take-away

• oneM2M progressed two aspects of interworking – Underlying network interworking – Device/technology interworking (via IPE)

• oneM2M interworking framework either relies (APIs) or considers OMA work (LWM2M)

• oneM2M has an objective to reuse and collaborate, we will continue to leverage existing technology

• OMA is a key player – provides thought leadership that is key to oneM2M – Device management – Network APIs

• We are already fully engaged together, let’s continue with the same spirit of collaboration