1. 3G

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  6. About 3G

    International Mobile Telecommunications-2000 (IMT--2000), better known as 3G or 3rd Generation, is a generation of standards for mobile phones and mobile telecommunications services fulfilling specifications by the International Telecommunication Union.[1] Application services include wide-area wireless voice telephone, mobile Internet access, video calls and mobile TV, all in a mobile environment. Compared to the older 2G and 2.5G standards, a 3G system must allow simultaneous use of speech and data services, and provide peak data rates of at least 200 kbit/s according to the IMT-2000 specification. Recent 3G releases, often denoted 3.5G and 3.75G, also provide mobile broadband access of several Mbit/s to laptop computers and smartphones.

    The following standards are typically branded 3G:

    • the UMTS system, first offered in 2001, standardized by 3GPP, used primarily in Europe, Japan, China (however with a different radio interface) and other regions predominated by GSM 2G system infrastructure. The cell phones are typically UMTS and GSM hybrids. Several radio interfaces are offered, sharing the same infrastructure:
      • The original and most widespread radio interface is called W-CDMA.
      • The TD-SCDMA radio interface, was commercialised in 2009 and is only offered in China.
      • The latest UMTS release, HSPA+, can provide peak data rates up to 56 Mbit/s in the downlink in theory (28 Mbit/s in existing services) and 22 Mbit/s in the uplink.
    • the CDMA2000 system, first offered in 2002, standardized by 3GPP2, used especially in North America and South Korea, sharing infrastructure with the IS-95 2G standard. The cell phones are typically CDMA2000 and IS-95 hybrids. The latest release EVDO Rev B offers peak rates of 14.7 Mbit/s downstreams.

  7. Quotes about 3G

    1. We've always said the technology is going to be ready for 3G femtocells at the end of 2008 or early 2009. Everything we see still supports this view.
      Simon Saunders in Femtocells Continue to Make Headway
    2. Femtocells can open up these applications to any 3G handset quickly and easily, putting your mobile phone at the heart of your connected home.
      In ip.access Brings Femtocells into the Connected Home (23/7/2008)
    3. Femtocells can offer consumers more than just better 3G coverage at home.
      Andy Tiller in ip.access Brings Femtocells into the Connected Home (23/7/2008)