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The present document includes necessary information to support the co-operation under the MoU between ETSI and the Electronic Communications Committee (ECC) of the European Conference of Post and Telecommunications Administrations (CEPT).

Ultra Wide Band (UWB) technologies enable security-critical vehicular access control applications. The deployment of UWB in the modern automobile will significantly enhance the security of existing Passive Keyless Entry and Start Systems (PKES), also known as Keyless-Go and/or PASE (PAssive Start and Entry).

PKES systems represent the state-of-the-art technology for vehicle access and security systems on its long-term evolution from mechanical locks to electronic access systems and beyond. Highly convenient, the system allows car owners to open and start their vehicle by smart detection of the presence of the key in proximity of the car (less than 2 meters) and also inside the car. The system typically operates when pulling the door handle to open or pushing a START button to start the engine.

UWB technology for PKES

In order to further enhance the security of PKES systems (and access systems in general), UWB technology plays an important role with respect to proximity detection. More precisely, UWB-based PKES will prevent a number of attacks on current PKES systems - namely the so-called "relay attack" - by measuring the true time-of-flight distance between the car and the key and therefore make the cars significantly more secure and safer, without reducing the availability of the access or start function (due to false alarms).

UWB technology enables low-power, precise and secure time-of-flight (ToF) distance measurement between the key fob and the car in order to make a bullet-proof secure open and engine start. Unlike other technologies for distance measurement, UWB can provide a high precision even under Non-Line-Of-Sight (NLOS) conditions, which gives this technique a unique advantage if high reliability is required. Therefore, UWB is appropriate for highest security, system intelligence and convenience.

For car owners, UWB technology brings the highest security and safe operation for a car access system. For automakers, UWB technology enables the highest security grade compliant with existing and future regulations. ETSI 6 ETSI TR 103 416 V1.1.1 (2016-07) Beyond the core access functionality, UWB will support the automakers' effort towards smart cars where centimetreprecise location of the keyfob around and in the car enables new services.

The present document has been created by ERM TGUWB.