In the Multiaccess network IP traffic can be dynamically transferred from one network interface to another. A video stream on the patient can be transferred from GPRS to WLAN, to achieve higher bandwidth and picture quality.

In the future different IP flows can also use separate interfaces simultaneously. For example, sufficient reliability might not be available in a WLAN network, therefore vital data transmissions could simultaneously use a GPRS or UMTS interface.

Ambulance WLANWLANWLAN

GPRS / UMTS

Ericsson Research has implemented this functionality at the IP/network layer within a prototype Multiaccess Mobile IPv6 stack. Medical applications within a Guardian Angel Ambulance can always stay best-connected with the hospital. An interface management system is provided for

controlling the operation of Multiaccess. Users can control the placement of IP traffic in different interfaces based on application requirements and

information on the accesses.

The presented Multiaccess network is transparent to applications and access technologies and does

not require any additional network nodes. It is based on a Linux Mobile IPv6 stack developed by

GO – an Ericsson co-funded research project in Helsinki University of Technology. The Home

Agent functionality is provided on a commercial Ericsson high performance dual stack Router.

OY L M ERICSSON ABOY L M ERICSSON AB

NOMADICLABNOMADICLAB

PL 58PL 58

02131 ESPOO02131 ESPOO

FINLANDFINLAND

nomadiclab@ericsson.finomadiclab@ericsson.fi

RUSCommunication Systems

Universität Stuttgart

GPRS / UMTS

LAN “docking station”

“UKT-Hospital”

6bone

Access router

CN

DNS

IPv6

IPv4

IPv6 in IPv4 tunnel

Other partner connections via 6bone

EricssonRouter (HA)

GGSNSGSN

6boneedge router

6boneedge router

Tübingen

Düsseldorf

Internet

WLAN

Access router

ERICSSON TELEBIT A/SERICSSON TELEBIT A/S

Skanderborgvej 232Skanderborgvej 232

8260 Viby J8260 Viby J

DENMARKDENMARK

ted-ted-research@ted.ericsson.dkresearch@ted.ericsson.dk

IPv6 Wireless Initiative

IST 2000 - 25153IST 2000 - 25153

Am

bu

lan

ce-t

o-H

osp

ital

Mo

bile

IPv6

Mu

lti A

cces

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ork

Universität StuttgartUniversität StuttgartRechenzentrum ‘RUS’Rechenzentrum ‘RUS’

Communication SystemsCommunication Systemschrist@rus.uni-stuttgart.dechrist@rus.uni-stuttgart.de

Universität TübingenUniversität TübingenDept. of AnesthesiologyDept. of Anesthesiology

Patient Safety and SimulationPatient Safety and Simulationmarcus.rall@med.uni-marcus.rall@med.uni-

tuebingen.de tuebingen.de

The Guardian Angel medical applications require an ability to seamlessly roam between different types of access networks – whatever is the best available in a certain location.

Guardian Angel

Ambulance

Ambulance

UKT-Hospital

Perspective

When the medical, legal and technical problems of the Guardian-Angel-System are solved, it could be established as a routine back-up and emergency care system in many fields of modern medicine: intensive care units, operating rooms, emergency departments and of course mobile in ambulance cars.

Live-

Vital Sign-

Streams

Acute Consultation

LIVE-Telemanagement

Live-

Video-

Streams

Experts in the Guardian-Angel center in the

hospital give advice to the remote team

Ambulance crew with problems caring for a

patient in an emergency

Conception

Whenever a medical team cannot solve a medical emergency problem, they are able to contact the Guardian-Angel experts. Therefor they use a one-button activation of all necessary systems and transmissions and wear wireless headsets for undisturbed communication.

Medical background

Errors are a leading cause of death in patients. In emergency situations help is needed immediately when necessary. Often there is a lack of permanently available experienced medical staff. The Guardian-Angel-System closes this gap in the medical field.