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EMS, MBMS : The future of CBS. CB is evolving. EMS over CBS is already standardized, and MBMS is on the way. Overview on the future developments of CB. EMS, MBMS : The future of CBS.

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EMS, MBMS : The future of CBS

CB is evolving.

EMS over CBS is already standardized, and MBMS is on the way.

Overview on the future developments of CB


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EMS, MBMS : The future of CBS

  • Since the beginning of GSM (but CDMA as well), there is an identified need for text (non-voice) message delivery service

  • Two services are defined for that purpose:

    • One for point to point messaging : SMS-PP

    • One for broadcast messaging : SMS-CB

  • SMS-PP is a known huge success. It also paved the way for lots of « SMS-CP » applications and VASs

  • Broadcast comes next because it is the only technical way to address the masses


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EMS, MBMS : The future of CBS

  • EMS, and EMS over CBS

    • First, Nokia’s Smart messaging improved basic text SMS messaging experience, adding pictures and sounds

    • Then, EMS was standardized (in « R4 ») to provide interoperability between manufacturers

    • EMS was greatly enhanced in « R5 », and EMS over CBS was also introduced

      • Color support, Hyperlinks, return address


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EMS, MBMS : The future of CBS

  • EMS / CBS improves CBS applications, and applies to all CBS business models.

    • Information for free

      • Advertising

      • Operator competitive advantage

    • Teasing (Push and Pull)

    • « Pay-per-view » information

  • Compatibility with old handsets can be achieved by sending text-only versions on a separate channel.

  • Handsets are expected to hit the market H2-2002


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EMS, MBMS : The future of CBS

The Multimedia Broadcast / Multicast Service

(extract of 3GPP TS 122.146)


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EMS, MBMS : The future of CBS

  • Will allow the delivery of Multimedia contents

    • Messages

    • Streams (audio, video)

  • Opens the door for « TV on mobile »

  • Designed to be « VAS friendly »

  • Again, for Multimedia VASs for the masses, MMS won’t do. Broadcast is required.

  • The bad news : Specifications are still on very early stage.



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EMS, MBMS : The future of CBS

  • Normative references : GSM / UMTS

    • CBS, EMS/CBS :

      • 3GPP TS 123.041, 123.038

      • TS 123.040, §9.2.3.24 defines EMS

    • MBMS :

      • 3GPP TS 122.146 (stage 1)

      • 3GTT TS 125.410 (core network)

  • Normative reference : CDMA / CDMA 2000

    • SMS & SMS Broadcast

      • TIA-EIA-637 / 3GPP2 C.S0015