History and architecture of i-mode mobile internet service

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i mode - History i-mode was launched in Japan on 22 February 1999 . The content planning and service design team was led by Mari Matsunaga, while Takeshi Natsuno was responsible for the business development. Further Developments: Dec. 1999 i-mode compatible handsets with color screens were marketed Jan. 2001 i-appli service launched Jul. 2001 i-area service launched Nov. 2001 i-motion service launched Jun. 2002 i-shot service launched Jan. 2003 i-motion mail service launched Sep. 2005 i-channel service launched Oct. 2006 keyword search service for i-mode launched

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Architecture Packet Network (PDC-P) Communication Network (PDC) iMode Server Groupware Server PSTN Info. Provider HTTP/TCP/IP Leased Line Internet Info. Provider Info. Provider PC PC HTTP/TCP/IP

i mode Server The i-mode server is a regular Web server. It can reside at NTT DoCoMo or at the Enterprise. DoCoMo has been acting as a portal and so “normally” maintains the iMode server. For future implementations with advanced security requirements, it is possible to host the iMode server at the Enterprise. ,[object Object],[object Object],[object Object],[object Object],[object Object]

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Protocols ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Telephony Function HTML ALP (Application Layer Protocol) TLP (Transport Layer Protocol) PDC-P PDC Mail ALP (Application Layer Protocol) IP TCP iMode Server

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i-mode Related Services i-appli: i-mode with Java This service group consists of software (programs) used with i-mode compatible mobile phone terminals. Downloading the software makes it possible automatically update the news and weather forecast displays as well as to play new games. i-area: Location Based Service This is DOCOMO's location information service. The i-area service enables the user to check the weather forecast, traffic and store information and other convenient information for local areas as well as the map information to the user's current location.

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History and architecture of i-mode mobile internet service

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History and architecture of i-mode mobile internet service