FOMA

All you want to know about FOMA

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Mobile communication standards

GSM / UMTS (3GPP) Family

GSM (2G) GPRS EDGE (EGPRS) EDGE Evolution CSD HSCSD
UMTS (3G) HSPA HSDPA HSUPA HSPA+ UMTS-TDD TD-CDMA TD-SCDMA FOMA
3GPP Rel. 8 (Pre-4G) E-UTRA


cdmaOne / CDMA2000 (3GPP2) Family

cdmaOne (2G)
CDMA2000 (3G) EV-DO
UMB (Pre-4G)


AMPS Family
AMPS (1G) TACS / ETACS
D-AMPS (2G)


Other Technologies
Pre Cellular PTT MTS IMTS AMTS OLT MTD Autotel / PALM ARP
1G NMT Hicap CDPD Mobitex DataTAC
2G iDEN PDC CSD PHS WiDEN
Pre-4G iBurst HIPERMAN WiMAX WiBro GAN (UMA)


Channel Access Methods FDMA OFDMA TDMA SSMA CDMA


Frequency bands Cellular GSM UMTS PCS SMR

FOMA (IPA:/'foʊmə/), officially short for Freedom of Mobile Multimedia Access, is the brand name for the 3G services being offered by Japanese mobile phone operator NTT DoCoMo.

FOMA was the world's first W-CDMA 3G service when launched in 2001. FOMA is compatible with standard UMTS, both via the radio link as well as via USIM card exchange, and hence provides several alternative options for global roaming: either with or without change of handset. Since mobile services in Japan are generally more advanced than in most other countries, e.g. FeliCa-i-mode Wallet Phones, i-mode mobile data services etc, to obtain full benefit of FOMA services local Japanese handsets are used.^{[citation needed]}

Initially - as the first full-scale 3G service in the world^[1] - FOMA handsets were of experimental character targeting early adopters, and were big, had poor battery life and the network covered the center of Japan's largest towns only. For the first 1-2 years, FOMA was essentially an experimental service for early adopters - mainly communication industry professionals.

Around March 2004, FOMA achieved the breakthrough into mass sales, and sales soared. As of September 29, 2007, FOMA has over 40 million subscribers.^[2]

1 Spectrum Allocation - FOMA Plus Area
2 FOMA HIGH-SPEED
3 See also
4 References
5 External links

Spectrum Allocation - FOMA Plus Area

FOMA Plus Area uses 800MHz Band. This allows better coverage in rural areas where there are greater distances between subscriber & base station.

In FOMA Plus Area, we can get the all same service in FOMA Area. In addition, between FOMA and FOMA plus area are no difference in rates. Mainly mova use NTTDocomo's 800 MHz band. but this is different from the PDC system. it can't coexistence in same frequency and except N2701,the same cellphone can't use in both area.

The early days of starting FOMA Plus area was very few, because the people use mova was a lot. but now the number have decreased. Recently FOMA plus areas of overlap mova cut in the bandwidth on existing FOMA base stations FOMA service area plus the addition of area facilities A two-tier structure (overlay) is the base station. According to NTT DoCoMo Tokai, 2006,2007 year in mountain areas and some residential areas in the dual structure, and since 2008, including from urban areas throughout the two-tier structure will be launched.

Please help improve this section by expanding it. Further information might be found on the talk page or at requests for expansion. (June 2008)

FOMA HIGH-SPEED

Currently NTT DoCoMo provides a high-speed data communication services, namely FOMA HIGH-SPEED, using HSDPA technology (7.2Mbit/s downlink, 384kbit/s uplink).^[3]