How many CDMA mobile networks are in the world ? Name some...?

CDMA (Code-Division Multiple Access) refers to any of several protocols used in so-called second-generation (2G) and third-generation (3G) wireless communications. As the term implies, CDMA is a form of multiplexing, which allows numerous signals to occupy a single transmission channel, optimizing the use of available bandwidth. The technology is used in ultra-high-frequency (UHF) cellular telephone systems in the 800-MHz and 1.9-GHz bands.

CDMA employs analog-to-digital conversion (ADC) in combination with spread spectrum technology. Audio input is first digitized into binary elements. The frequency of the transmitted signal is then made to vary according to a defined pattern (code), so it can be intercepted only by a receiver whose frequency response

3 Answers

  • 1 decade ago
    Favorite Answer

    Well..theres Reliance, Tata Indicom ( the private players)...N then therez Garuda by MTNL n there exists service by BSNL too.(these two are govt sector)

    I m toking about India

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  • Anonymous
    4 years ago

    Code branch varied get entry to: a digital instant telephony transmission technique. a million. CDMA enables varied frequencies for use concurrently (unfold Spectrum). The CDMA theory became initially stepped forward for militia use over 30 years in the past. 2. The CDMA standards used for 2d-technology cellular telephony are the IS-ninety 5 standards championed by QUALCOMM.

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  • 1 decade ago

    not sure I think fourteen

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