The increase of digital developing functions in a mobile phone

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Description:

Mobile phone are getting more and more sohisticated. Moblile phone incorporating with computing functions will be able to replace ohter devices such as laptop.

Enablers:

● Reasearchers are hoping that the 4G system can reach a much faster speed, a connection speed up to 100 Mbps. ● There 3G phone is based on whole neew network protocods such as IMT-2000, UMTs and W-CDMA. These standars of protocols allow high speen sonnection via the mobile phonw, enabling it to make improvements on voice connections, emgaged in a video calls get access to the intemet and also watch television programs. ● Many moblie phones now are developed into PDA-like phones with OS that enables the commoum:Cation device to operate as if a mini-computer. ● Entertainment on mobile phones has also been a development for many developers. Mobile phone gaming, megapicxel camera functions, media player(playing Mp3 and short films), DMB(S-DMB and T-DMB) are now engaged among 2.5G and 3G mobile phones.

Inhibitors:

● The development of the charging battery technology. The 3G/4G mobile phone is more necessary to use long-time without connecting electric power devices. ● Symptoms caused by the radiation of mobile phones are one of the most argued problems. Many scientists beliebe that the radiation from the mobile phones may cause the users to have different symptoms such as headache, earaches and even causing cancer. ● Mobile phone addiction is a big social problem psychiatrists belive taht mobile thone addiction is becoming one of the biggers

Paradigms:

- The seamless service among mobile, fixed line, WiFi and ISPs will drastically change the industry structure. The four separated industries integrated one market, resulting that the companies in the industries will face the new competitors, convergence, intense sharing the cotent providers and related M-commerce providers.

- Social life style will also change. The Mobile phone will have bigger monitor so that customers can watch the TV or play online games through the mobile phones. In Japan, the fixed fee structure for packet communication established already, therefore, the cost of mobile communication will be no longer a problem for customer. Communication between the people may also change, the video e-mails, shopping through the mobile phone, listening the music through mobile phone (substitute of MP3 player) and all contents or services provided currently through internet will turn to the mobile services.

Experts:

- NTT DoCoMo representative in Rotterdam

Timing:

2001: Standardized technologies related to 3.5 G (downward over 8Mbps in 5MHz bandwidth), such as HSDPA（ High Speed Downlink PacketAccess) and VoIP (Voice over IP) service

WP8F（Working Party 8F）of ITU（International Telecommunications Union）started discussion about the possible feature, standardized technology of the 4G

2005: The communication speed will become over 30Mbps

2010: Forth generation service starts with bandwidth 50-100Mbps

2015: Necessary to build 1.2 GHz-1.7 GHz frequency for accomodating the increased communication

Resources:

-Shuuji Urabe/ Yoshisuke Hasegawa/ Masao Miyazaki, "Mobile Communication System Evolution in Digital Mobile Radio", Sharp engineering report, Sharp corporation, December 2001

- NTT DoCoMo homepage (Investors Relations) http://www.nttdocomo.co.jp/english/corporate/investor_relations/top_e.html

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