29.11.2018 Start

Mannesmann Mobilfunk E X P E R I E N C E S O F A P I O N E E R U S E R 29.11.2018 Mannesmann Mobilfunk E X P E R I E N C E S O F A P I O N E E R U S E R

Dipl.-Ing. Holger Linden 29.11.2018 Mannesmann Mobilfunk Dipl.-Ing. Holger Linden Technical Project Manager Cell Broadcast Mannesmann Mobilfunk

Vodafone AirTouch Holdings 29.11.2018 Vodafone AirTouch Holdings D2 is part of the largest mobile communications company in the world Vodafone

D2 Data Services DATA SERVICES GPRS WAP SMS CELL BROADCAST EMAIL HSCSD 29.11.2018 D2 Data Services DATA SERVICES GPRS WAP SMS CELL BROADCAST EMAIL HSCSD FAX/DATA and further services currently under development, e.g. UMTS Milestones

Cell Broadcast History 29.11.2018 Cell Broadcast History AUGUST 2000 CBC V1.1 active (performance release) JANUARY 2000 Commercial start 12snap NOVEMBER 1999 CBC V1.01 active (stability release) FEBRUARY 1999 CBC V1.0 active ------------- 1999 Further services Handelsblatt & Pro7 OCTOBER 1998 First commercial service D2-BestCitySpecial JUNE 1998 Start Pilotphase with Mannesmann Telecommerce APRIL 1998 First CBC delivered by CMG MARCH 1998 First presentation Cell Broadcast on CeBIT APRIL 1997 Decision to take CMG as vendor MAY 1996 D2-internal Kick Off Cell Broadcast

Problems to overcome Information Provider Cell Broadcast Center BSC 1 29.11.2018 Problems to overcome Information Provider Cell Broadcast Center BSC 1 BSC 2

Information Provider Problems 29.11.2018 Information Provider Problems Development of CBE software takes some time D2 provides also access via Internet for manual and automated input of messages Broadcasting of CB-messages can not be controlled by Information Provider in all regions No direct feedback of the customer, difficult to make estimations how many customers are using CB ...

CBC Problems Functional problems: 29.11.2018 CBC Problems Functional problems: Functional problems were and are still present Number of problems was significantly decreased by CBC V1.01 & V1.1 Stability problems: Serious stability problems were solved with CBC V1.01 in November 1999 Performance problems: Significant performance increase with CBC V1.1 D2 performance requirement: 4000 BSC-req/minute Further investments necessary (network growth)

Network Problems Connection between CBC and BSCs (bandwidth) 29.11.2018 Network Problems Connection between CBC and BSCs (bandwidth) General configuration problems: - CBC must know all BSCs and BTSs - All BSCs must be configured to support CB - Network changes must be known (new BSCs/BTSs, swapped BTSs, etc.) - CBC must react on changes in the network

BSS Problems Storage capacity of BSC Performance of BSC 29.11.2018 BSS Problems Storage capacity of BSC Performance of BSC Functionality in BSS (phase 2+ not supported in all brands) Handling of cell lists in BSC ...

29.11.2018 Air Capacity Problems Air capacity limited to 1 CB-page each 1.883 seconds in GSM Only way to increase air capacity is use of extended CBCH (nearly double capacity on air interface) More air capacity will be available with UMTS

Mobile Problems Beginning of 1998 only few mobiles supported CB 29.11.2018 Mobile Problems Beginning of 1998 only few mobiles supported CB Strange reactions of mobiles on CB-messages (switched off, started network scanning, etc.) Loss in standby time due to CB (Solution: DRX mode) Functions like multipage messages, immediate display, etc. not always supported in mobiles with CB implementation Different behaviour of different mobile types lead to high expenses to communicate how to activate CB to the customer

Cell Broadcast Services 29.11.2018 Cell Broadcast Services D2 - services with external content: Provider Content Channel (MI) Pro 7 Topics of the day 107 12snap Auctions 123 Handelsblatt Business/financial news 140 MTC Traffic Information 666 & 43520 D2 - service with internal content: D2-BestCitySpecial Presentation of area codes 50 & 100

Future Services with Cell Broadcast 29.11.2018 Future Services with Cell Broadcast Advertising Stock information Tourism offers / information Special offers of shops / companies Additional magazin - information e.g. music magazin gives information about delay of concert start per CB Public channels for police, fire brigade ...

Email: holger.linden@d2mannesmann.de 29.11.2018 Thank you very much for your attention Holger Linden Phone: +49 / 211 533 - 32 31 Email: holger.linden@d2mannesmann.de I‘ve got to go now...