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Mobile Phone

Mobile phone adalah perangkat elektronik portabel yang berfungsi sebagaimana pesawat telepon normal, yang dapat bergerak pada suatu area yang luas. (bandingkan dengan cordless phone). Kebanyakan mobile phone saat ini menggunakan kombinasi transmisi radio dan telephone circuit switching (PSTN) konvensional, walaupun packet switching sudah digunakan untuk beberapa bagian jaringan mobile phone, khususnya untuk layanan akses Internet dan WAP.


Standard dari Mobile Phone yaitu :

0G
- Push to Talk
- Mobile Telephone System
- Improved Mobile Telephone System
- Advanced Mobile Telephone System 900Mhz

1G
- Nordic Mobile Telephone (1rst cell phone in jerman)
- Advanced Mobile Phone System (analog mobile phone)
- Analog, Band frekuensi 800 MHz

2G
-Digital System
-Global System for Mobile communications (GSM: originally from Groupe Spécial Mobile) : The most  standard cell phone, SMS.
-Integrated Digital Enhanced Network (iDEN) : Developed by Motorola, Uses Time Division Multiple Access
-Digital AMPS
code division multiple access (CDMAone)
-Menggunakan frek: 800, 900, 1800, 1900 MHz

2.5G
-General Packet Radio System : 56 – 114 Kbps, for SMS, MMS, WAP, Internet

2.75G
-CDMA2000
-Enhanced Data rates for GSM Evolution (EDGE) or Enhanced GPRS (EGPRS)

3G
-Wideband Code Division Multiple Access (WCDMA)
-Universal Mobile Telecommunication System
-CDMA 2000
-WiMAX (Worldwide Interoperability for Microwave Access)


3.5G
-HSDPA (High-Speed Downlink Packet Access) : 1.8, 3.6, 7.2 and 14.4 Mbit/s

 4G
-Ultra Mobile Broadband (UMB)

Perbedaan dari masing masing standard Mobile Phone ialah :

1G
-radio sinyal bersifat analog
-Pada frekuensi 800 Mhz & 400 Mhz
-Dimulai dari Chicago, dikomersilkan 1983

2G
-radio sinyal bersifat digital
-Dimulai dari maret 1993
-Menggunakan TDM (Time Division Multiplexing)
-Frekuensi 800 – 1900 Mhz
-Dikenalnya GSM dan CDMA

2.5G – 3G
-digital high speed

4G
-IPv6, voice, digital high speed

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