Proximity Communication

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Outline Introduction

U C Use Cases Commercial

Public Safety Public Safety Architecture

LTE DirectLTE Direct LTE + WLAN

Standardization 3GPP IEEE

Wi Fi Alli Wi-Fi Alliance WiGig

Conclusions

2

Conclusions

Beyond 4G

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Why D2D?

Wireless Technology is at a turning pointWireless Technology is at a turning point

3G 4G & Beyond2G

Effi

cien

cyN

etw

ork

Effi

cien

cy

AMC+HARQ OFDM+MIMOOFDM+MIMO

CoMP/eICIC

Heterogeneous

Networks

Spe

ctra

l

CDMA

4Source: Intel

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D2D design approaches

WAN top-down approach:Expanding heterogeneous cellular network to include D2D capabilitynetwork to include D2D capability(E.g. 3GPP LTE D2D)

WLAN bottom-up approach: Expanding and integrating existing standalone D2D solutionsstandalone D2D solutions (E.g. WiFi Direct, Bluetooth, NFC)

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Types of D2D

Stand-aloneand

Network Assistedor

Network Integratedandand

Self-organizing

WLAN D2D

orNetwork Controlled

WAN + WLAN D2D

andHeterogeneous Network

WAN D2DWLAN D2D

(E.g. WiFi Direct, Bluetooth, NFC)

(E.g. LTE + WiFi Direct)

WAN D2D

(E.g. 3GPP LTE D2D)

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, )

Source: Intel

D2D technology components

ApplicationsApplicationsApplicationsApplications Innovations

Device/User/ServiceDevice/User/ServiceDevice/User/ServiceDevice/User/ServiceCh llDiscovery & Discovery &

CommunicationsCommunicationsChallenges

D2D ConnectivityD2D Connectivity Co-existence

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Source: Intel

D2D ApplicationsData

What do we have now?Sh t t h t id

Share texts, photos, video

clips Ex. Color, Tooth Tag,

Alljoyn

TextV i

Alljoyn Find shops

Ex. Fouresquare Radar, Twitter Discover Tab Text

VoiceVoIP

Twitter Discover Tab, NearVerse LoKast, Google MAP

What will we have in theWhat will we have in the future? Enhanced social networking Enhanced mobile

Video

Enhanced mobile advertisement

Home automation Public Safety

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Public SafetySource: IEK

D2D Applications Attributes Evolution of LBS

P i it b d S i (P S ) Proximity-based Service (ProSe) APP discovery and communication without

GPS or centralized serversGPS or centralized servers.

Timely Direct Enhanced User Experience Timely, Direct, Enhanced User Experience

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Use Cases - Restricted Discovery

Restricted discovery describes a basic scenario for ProSe discovery.

Mary and John

are friends

P i itJohns ProSe-enabled UE

Proximity

M P S bl d UE Mary and SusanMarys ProSe-enabled UE

Susans ProSe-enabled UE

Mary and Susan

are not friends

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Use Case - Open Discovery

Open discovery describes a case in which an p yUE discover another UE without permission by the discoverable UEthe discoverable UE.

Advertisement

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Digital SignageInteractive discovery

Use Case Service Continuity

This use case depicts service continuity p ybetween the network infrastructure and the direct communication pathdirect communication path.

Core Network Core Network

Control + Data Control + Data Control Control

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Data

Use Case - Offloading

Offload much traffic load to the locally shared communication, such as wifi, femto, even proximity based ydirect communication.

Interworking withInterworking with unlicensed band provides operators aprovides operators a costless service.

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Use Case Public Safety

In the United States, LTE has been selected by the FCC as the technology for the Public Safety NetworkFCC as the technology for the Public Safety Network.

In Europe there is an ongoing discussion on spectrum to be chosen for broadband Public Safetyspectrum to be chosen for broadband Public Safety held by CEPT ECC WG FM PT 49.

Mission Critical Voice is the priority p y Device-to-Device calling

3GPP RAN Rel-12 will study options for device-to-device communication and device discoverycommunication and device discovery

Talk Group / Push-To-Talk Calling 3GPP SA GCSEL will study options for group and PTT

communication in Rel 1communication in Rel-1

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Disaster Scenarios

RonAgamGettyImages

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Fire and Rescue services

Firefighters communicate with each other geven under no network coverage, for example, network is unavailable after tsunami or wildnetwork is unavailable after tsunami, or wild fire case.

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Ambulance and EMS

At Life EMS Ambulance highly-trained medical g yteams use state-of-the-art communications with back-up systems the latest life-savingwith back up systems, the latest, life saving pre-hospital care equipment, and fully-staffed ambulances that are mobile emergency roomsambulances that are mobile emergency rooms.

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Architecture (LTE Direct)ProSe Discovery over 3GPP

ProSe Communication over 3GPP Access1.NWAssistedProximityDiscoveryInformation

ProSe Communication over 3GPP Access

3GPP Access

UE1

EPC

ANDSF AAA

Non-3GPP

Access2 ProSe ccess

3.ProSeCommunication(LTE)

Control Plane

Data Plane

2.ProSeDiscovery

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UE2

Architecture (LTE + WLAN)ProSe Discovery over 3GPP

ProSe Communication over Non 3GPP Access

1 NW Assisted Proximity Discovery

ProSe Communication over Non-3GPP Access

3GPP UE1

1. NWAssistedProximityDiscovery

Access

EPC

1

2 ProSe

ANDSF AAA

EPCNon-3GPP

Access

2.ProSeDiscovery

Access

3.ProSeCommunication(IWLAN,trusted/unUE2

Control Plane

Data Plane

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trustedWLAN)UE2

Standardization (3GPP SA1)

3GPP SA1 Proximity-based Service (ProSe) WID

First meeting in Nov. 2011 Estimated completion in March 2013 Objective : Study use cases and identify potential requirements for

an operator network controlled discovery and communicationsan operator network controlled discovery and communications between devices that are in proximity. The scope includes the following topics

Commercial/social use Commercial/social use Network offloading Public Safety Integration of current infrastructure services, to assure the consistency

of the user experience including reachability and mobility aspects

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Standardization (3GPP RAN) Qualcomm solution

1 LTE device to device discovery1. LTE device to device discovery Network-assisted discovery Resource semi-statically allocated by the

RAN & time-syncedRAN & time synced UEs transmit discovery signals within the

discovery resources Discovery signals encode informationy g UEs decode everyone elses signals

2. LTE device to device direct communication Separate feature from device to deviceSeparate feature from device to device

discovery Devices allowed to communicate directly

if/when make sense Shortest path for certain types of local

data exchanges Specific use case: public safety

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Standardization (3GPP SA) Intel solution

LTE WLAN interworking enhancements LTE-WLAN interworking enhancements Leverage unlicensed spectrum for traffic offloading

Opportunistic use of unlicensed spectrum for D2D Oppo tu st c use o u ce sed spect u ocommunication

Leverage unlicensed spectrum to support new use cases F th h t f di d t li ti Further enhancements for diverse data applications

Improve network efficiency and UE power efficiency RAN improvements to handle different QoE requirements RAN improvements to handle different QoE requirements

Improvement on end-user experience, especially during network congestion

Targeted for mobile video which is projected to be the dominant mobile data traffic in the next few years

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Standardization (3GPP SA)

Intel solutionOpportunistic Use of Unlicensed Spectrum for D2D Local Traffic Opportunistic Use of Unlicensed Spectrum for D2D Local Traffic

D2D on LTE licensed spectrum (possible use cases: public safety,

D2D on unlicensed spectrum (possible use cases: offloading,(p p y,

offloading, social networking)(possible use cases: offloading, social networking)

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Standardization (IEEE 802)

IEEE 802.11 Infrastructure Service Discovery (ISD) Study GroupGroup First meeting in Jan 2012 Participants: RIM, Motorola Mobility, Huawei, Nokia, Renesas,

InterDigital ETRI etcInterDigital, ETRI, etc. Objective : Address the problem of how a station discovers the

availability of services within the network from another station. IEEE 802 15 8 Peer Aware Communication (PAC) Task IEEE 802.15.8 Peer Aware Communication (PAC) Task

Group First meeting in May 2012

P ti i t LGE NICT I t Di it l ETRI S CUNY t Participants: LGE, NICT, InterDigital, ETRI, Samsung, CUNY, etc. Objective : Defines the PHY and MAC specifications for PAC optimized

for peer to peer and infrastructureless communications with fully distributed coordinationdistributed coordination.

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Standardization (Wi-Fi Alliance) Wi-Fi Direct (Wi-Fi P2P)

Provides Peer-to-Peer connectivity technologyy gy Includes Device Discovery, Service Discovery, Group Owner Power Saving, etc Enables use case: wireless display, wireless audio, sync and go, content sharing ... Program launched in Q3-2010. Now, there are 1000+ product certified. According to ABI, g Q , p g ,

every device will have Wi-Fi Direct in 2014. Neighbor Awareness Networking

A new task group was formed in 2012A new task group was formed in 2012 Provide low power discovery for mobile device social networking and D2D discovery Enables use cases: for example, Saturday marketing advertisement, social gaming,

social dating, social meeting in conference, etc...g, g , Technology focuses include: Low Power Discovery (mobile device), Long range (up to

500meters), and large scale (up to 1000 mobile devices). Wi-Fi Direct Service

A new task group was formed in June 2012 Ensure selected services interoperability: File Transfer, DLNA based Media Stream, and

Printingg Enable 3rd party application development

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Standardization (WiGig)

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Source : WiGig

Conclusions (1/2) Challenges for beyond 4G ProSe evolutions

WLAN and LTE radio integrationsWLAN and LTE radio integrations, low-power-always-on ProSe discovery, New Carrier Type (NCT) of LTE for direct communication, and non-orthogonal radio design for high performance ProSenon orthogonal radio design for high performance ProSe

Public Safety would be the primary driving force for LTE D2D in Rel-12

LTE + WiFi Direct supports ProSe discovery and communication that only ect suppo ts oSe d sco e y a d co u cat o t at o yrequires adaptations at EPC (no RAN impact) to quickly enable ProSe via standardized 3GPP/WLAN interworking solution

Possible to be completed in Rel 12 Possible to be completed in Rel-12

LTE D2D ProSe discovery and communications require fundamental adaptation of the LTE physical layer (PHY) and radio. It will take several years to complete the major change in PHY and radio in standard procedures, and another several years for products to be available in the market

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Conclusions (2/2) III and ITRI have been actively participating in D2D

standard (ProSe) creation in 3GPP SA1 since 2012,standard (ProSe) creation in 3GPP SA1 since 2012, and will follow up in RAN & SA for Rel-12 and Rel-13 (2013 2016)(2013 2016)

III and ITRI are working on a joint project on LTE + WiFi Direct prototypes in 2013 covering networkWiFi Direct prototypes in 2013 covering network, services and applications We are soliciting participating from Taiwan user We are soliciting participating from Taiwan user equipments and chipsets industry (LTE & WiFi)W d di ff b We need to coordinate our efforts between government and industry to develop a leading

i i i D2D kposition in D2D market

Thank Youa ou

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