january 14, 2007doc: ieee 802.15-07-0536-00-0ban jean schwoerer (france telecom r&d) slide1...

January 14, 2007 Doc: IEEE 802.15-07-0536-00-0ban

Jean Schwoerer (France Telecom R&D) Slide 1

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)(WPANs)

Submission Title: [Possible BAN uses case for multimedia application]Date Submitted: [January 15, 2007]Source: [Jean Schwoerer]

Company [France Telecom R&D]Voice: [+33 4 76 76 44 83]E-Mail: [[email protected]]

Re: []Abstract: [Showing possible uses case of wearable BAN terminals for various multimedia

application]Purpose: [To consider possible use cases for BANs ]Notice: This document has been prepared to assist the IEEE P802.15. It is offered as a

basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein.

Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15.



Possible uses cases of BAN networks for personal multimedia

applications

Jean Schwoerer

France Telecom R&D



Purpose and Contents• The purpose of this presentation is to discuss

possible uses case for BAN networks.

• Contents– Categorization of BAN devices

• Wearable high data rate (HDR) devices• Wearable or implanted low data rate (LDR) devices

– HDR and LDR uses cases– HDR and LDR devices on a unique network– Technical requirements– Conclusion



Categorization of BAN links• Categorization of BAN links

– Some BAN link need high data rates• Video links or fast download of big files• Links between batteries powered devices (cell phone,

Multimedia players, video glasses, headset• Requirement are : Datarate > 10 Mbit/s and low power

– Other links require only low data rate • Sensors (temperature, movement) or simple interface (watch)• Embedded into everyday item (shoes, clothes, watch..)• Need to be "forgettable" (no battery to charge, no

maintenance)• Requirement are => very low power (energy scavenging) and

very simple network subscription / unsubscription



HDR applications : Wire replacement

• A cell phone and a wireless headset is a BAN applications

• Therefore a wireless video glasses linked to a multimedia player is another applications

• Very useful as a wire in such applications is very annoying



LDR applications : Health monitoring

• Mainly composed of :– A network of sensors (move, heart rate, blood

pressure distributed on or inside the body).– A gateway that collect those data and forward

them to a doctor is something get wrong.



LDR & HDR for one networkConnecting LDR to every HDR devices in a real

network will bring huge benefits :

- Video glasses / handset can be used only by HDR capable devices (cell phone, PDA, multimedia players)

- Movements sensors can be used in a innovative GUI by a cell phone, a PDA or a music player

- Health sensors will improve user's situation awareness (calm & quiet, in a hurry, nervous..)



The distributed terminal• Video glasses : display + audio

• Watchs : simple display + a few button + wrist movements sensor

• Shirt : Microphone + medicals sensors• Multimedia player : Storage +

multimedia processing capability

• Smartphone : gateway to the world (UMTS, GPS)

• Shoes : feet movements sensors



Music or movie

• The interfaces is distributed on several devices– Video glasses are used for display (movie

& player interface) and audio.– The wrist movement sensor allow

navigation in the interface.• Thanks to the microphone the player is

able to cancel environmental noise and adapt the volume.

• Some music can be downloaded via the cell phone

• Medical and movement sensors allow the system to adapt his behavior to user contextual information's



Communication• The interface is distributed on several devices

– Phone screen can be displayed on the video glasses (video call, mobile internet) or on the watch screen.

– Audio is diffused by glasses earphone– User interface rely on the watch and vocal

recognition for hand-free internet browsing– A BAN-enabled pen will permit to write e-mail

or sms by natural writing.• Pedestrian GPS navigation will be improved

by feet motion sensors• Various motion sensors and video glasses

will permit new online videogame• User contextual information's allow cognitive

behavior of the interface like :– Warn if you are about to leave home whiteout

your key – Detect that you are about to forget your

passport in the plane



In your car• The phone provide GPS and traffic info

to the car navigation system• Destination can be extracted from the

smartphone contact database• The GPS Map and car date are

displayed in the glasses (HUD like)• Music can be diffused through the audio

car system when the player interface uses the video glasses and the wrist sensor.

• Music can be adapted to the ambient noise and traffic conditions.

• Medical sensor will allow the car to generate an alarm if the driver become sleepy



Cognitive behavior ?• This means "gather as much contextual informations as

possible and adapt consequently"– This include basic things like "automatically switch to silent mode

during a scheduled meeting"– This can fuse several kind of datas like :

• The guys is running (from movement sensor)• He has to take a train in 10 minutes (from agenda)• We are still fare away of the stations (GPS position) It seems that we will miss this train

The system can then automatically take some complex actions• Refuse by default any incoming call (no time to answer)• Check online if the train is on-time and retrieve his track number• Check online the timeplan, price and exchange possibility for a next

train.• Compute and propose the fastest way to go to the station• Check if we still have some hope to catch this train• If not, propose to cancel the ticket an get new one for the next train



Technical requirements• Network mechanisms

– We need a very flexible network with automatic subscription / unsubscription mechanism : you don't want to reconfigure your network each time you change your shoes.

– Strong security is mandatory : you don't want to broadcast you agenda (HDR devices) as well as the data of your medical sensors (LDR devices)

• Physical Layer– Maximal ranges is about 2 m– Need high flexibility in

• Data rates : (from 10 kbit/s to 10 Mbit/s)• Energy consumption : HDR devices may be recharged but

embedded LDR devices need to be self-sufficient

– Every devices (LDR, HDR and implant) need to be able to communicate on a unique network with a kind of "universal" air interface.



Conclusion• A BAN include a lot of sensors (medical, motion,

environmental)• Personal objects like smartphone,or PDA

contains a lot of data (contact, agenda)• A cellphone is the BAN gateway to the outer

world• A BAN as the unique opportunity to unify all

those devices• This will change the way we interact with our

electronics tools• This can lead to a lot of context-aware

applications that will make life easier



Thank you

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