Wednesday, August 16th, 2017

3G Telecommunication Technology

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3G Telecommunication Technology

Analog cellular phones were the 1st generation. Digital phones were marked as 2nd genneration, built mainly for voice services and slow data transmission. Latest one is 3G stands for 3rd generation is a family of standards for wireless communications. In the 3rd generation, generally includes prominent features such as high data access, high data speeds, streaming video and greater voice capacity. The third generation (3G) wireless technology is also referred as International Mobile Telecommunications-2000 (IMT-2000), 3rd Generation Partnership Project (3GPP) and Universal Mobile Telecommunications system (UMTS). UMTS is the most worldwide 3G technology based on WCDMA. EV-DO is the most common today with rise in data rate.

3G_enterprise_videoconferencing_solution

benefits of 3G offers:

Picture taken from  www.mirial.com

  • Perform all function at present mobile devices with much
    more higher speed.
  • Provide faster internet access, faster connectivity and music entertainment with improved quality.
  • Provide video call facility with better clarity
  • Mobile phone acts as a modem for your computer, faster downloading games, music video and songs.
  • increased speed and improved quality of service.
  • high bandwidth for voice and data (144 Kbps up to 384 Kbps)
  • speeds rate up to 2 Mbps in fixed mode
  • increased network capacity through improved spectral efficiency
  • noise resistance
  • increase bandwidth
  • effective use of spectrum and support for multimedia applications (e.g., Internet, image capture, JAVA, wireless Web, video).

Services includes:

  • wide-area wireless voice telephone
  • video calls
  • wireless data
  • simultaneous use of speech and data services
  • higher data rates upto 14.4 Mbit/s on the downlink and 5.8 Mbit/s on the uplink.
  • Multimedia applications

Standard interfaces for 3G services:

For eg: IMT-2000 provides six radio interfaces for 3G services:

  • DECT (Digital Enhanced Cordless Telecommunications)
  • UWC-136 (EDGE)
  • TD-CDMA (Time-Division, code division multiple access) / TD-SCDMA
  • CDMA2000
  • CDMA2001
  • W-CDMA

3G service will launched in India

3G services will be launched in India only after the government announces its spectrum policy and allocates spectrum in the required bands. This is expected early next year. After that, it will take a minimum of three months for operators to roll out 3G services.

Features

Advantages of 3G Technology is to provide wireless access to the data and information to the users from any where and anytime.

Data rates: Provide transmission rates higher with mininmum speed of 2 Mbit/s and maximum speed of 14.4 Mbit/s for the stationary users, 348 kbit/s in a moving vehicle

Security: 3G networks provides a greater degree of security to the user.

The major hindrance faced by 3G technology was the licensing and equipment cost. In many countries license for 3G is still very expensive, for example in many European countries licensing are high. Moreover as its frequency is different from old-fashioned 2G, equipment also needs to be upgraded. Hence the technology faces a hard challenge in many countries.  3G services were introduces in United Kingdom in 2000, but it did not gained much popularity at that time due to high costs. Japan was the first country to introduce the technology on commercial basis. According to a survey 40% of mobile phone subscribers used 3G. Korea was also quick to adopt the technology. The main reason for 3Gs popularity in Japan was attributed to music downloads. Important stakeholders in music download services included Chaku Uta Full, and EZchakuuta.

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