ABSTRACT: eCall for CDMA SOURCE: Tony Lee Mike Lim TITLE: CDMA eCall Overview TSG-AC RECOMMENDATION: Discuss and adopt. Intel grants a free, irrevocable license to 3GPP2 and its Organizational Partners to incorporate text or other copyrightable material contained in the contribution and any modifications thereof in the creation of 3GPP2 publications; to copyright and sell in Organizational Partner's name any Organizational Partner's standards publication even though it may include all or portions of this contribution; and at the Organizational Partner's sole discretion to permit others to reproduce in whole or in part such contribution or the resulting Organizational Partner's standards publication. Intel are also willing to grant licenses under such contributor copyrights to third parties on reasonable, non-discriminatory terms and conditions for purpose of practicing an Organizational Partner’s standard which incorporates this contribution. This document has been prepared by Intel to assist the development of specifications by 3GPP2. It is proposed to the Committee as a basis for discussion and is not to be construed as a binding proposal on Intel. Intel specifically reserves the right to amend or modify the material contained herein and to any intellectual property of Intel other than provided in the copyright statement above.

eCall for CDMA

What is eCall? 3gpp standardized eCall in TS and TS back in 2009 In a car accident, an emergency circuit switch voice call is automatically established by eCall device. Voice call can also be triggered manually by user. Transmission of vehicle and/or personal data (MSD or Minimum Set of Data) at the beginning of a voice call allow PSAP operator dispatch emergency personnel more quickly and thus save lives Transmission of MSD over voice channel must be fast and reliable Data and SMS might be an alternative, but most PSAP support voice only. Data and SMS might present a longer delay.

GPS Receiver MSD IVS data modem 1xRTT modem EVRC MIC and Speakers Location Info Base Station MSC PSTN In-Vehicle System IVS PSAP data modem MSD display MIC and Speakers eCall modem within the 3gpp2 1xRTT architecture Source data switch: (implementation dependent) Source data switch (implementation dependent)

High Level Procedure In a car accident, an emergency call is initiated by user or automatically by IVS device Emergency call is routed to the appropriate PSAP PSAP operator request the MSD via the PSAP modem IVS modem transmit the MSD to PSAP PSAP modem decodes the MSD and display the data to the PSAP operator

Minimum Set of Data Example of MSD: Registered vehicle ID Registered owner name Owner medical record Geo Location of the vehicle Direction of travel Triggering mode (manual or automatic) Other information to enable ER team to respond quickly

Suggested High Level Requirements IVS and PSAP modem should not affect the current 3gpp2 specifications MSD should be short enough. In Europe, this is restricted to 140 bytes of data MSD transmission should be reliable. Need some kind of ARQ. PSAP operator should be able to retrieve MSD in a very short time. In Europe, this is 4 seconds It shall be possible for the PSAP to send a confirmation to the IVS that the MSD has been acted upon It shall be possible for the PSAP to request the IVS to re-send its most recent MSD

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