What is 3G?

Know the technology

Everyone may be knowing that the Apple's iPhone 3G has been launched in India . But many of us are not aware what is 3G. so let's have a brief look into it.

 

What is 3G?
3G is the next generation of wireless network technology that provides high speed bandwidth (high data transfer rates) to handheld devices. The high data transfer rates will allow 3G networks to offer multimedia services combining voice and data.
Additional features also include HSPA(High-Speed packet Access) data transmission capabilities able to deliver speeds up to 14.4Mbit/s on the downlink and 5.8Mbit/s on the uplink.
3G wireless networks have the bandwidth to provide converged voice and data services. 3G services will seamlessly combine superior voice quality telephony, high-speed mobile IP services, information technology, rich media, and offer diverse content.

What are the Advantages of 3G?
3G networks offer users advantages such as:

• New radio spectrum to relieve overcrowding in existing systems.
  
• More bandwidth, security, and reliability.
  
• Interoperability between service providers.
  
• Fixed and variable data rates.
  
• Always-on-line devices. 3G will use IP connectivity, IP is packet based (not circuit based).
  
• Rich multimedia services. 

What are the Disadvantages of 3G?
There are some issues in deploying 3G:

• The cost of upgrading base stations and cellular infrastructure to 3G is very high.
  
• Requires different handsets and there is the issue of handset availability.
  
• Base stations need to be closer to each other (more cost).
  
• Tremendous spectrum-license costs, network deployment costs, handset subsidies to subscribers, etc.
  
• High power requirements.
  

Apple's  iPhone 3G

Apple 3G iphone global launched in July, 2008.
Apple iPhone launch in INDIA in August, 2008
After proving its worth by being a key producer of world class laptops, Apple has launched the all new iPhone specifically made for the funky Indian consumer. One look at the pic and it says all! and what's more.. it comes with a range of attractive features at just $199 (Not confirmed). Isn't that unbelievable! just too good to be true.

iPhone Feature
Screen 480320 px, 3.5 in (89 mm), color LCD
Camera 2.0 megapixel
Operating system iPhone OS (1.1.4) (2...0 coming soon)
Input 4 hardware buttons and Multi-touch touch screen
CPU 620 MHz ARM 1176,under clocked to 412 MHz
GPU: PowerVR MBX 3D
Ringtone iTunes Store via iTunes (U.S. only), custom creation using GarageBand 4.1.1 or later
Memory 128 MB DRAM
Storage Flash memory 4, 8, or 16 GB
Networks Quad band GSM 850 900 1800 1900 GPRS/EDGE
3G also includes: Tri bandUMTS/HSDPA 850, 1900, 2100, A-GPS
Connectivity Dock connector
Headphone jack
USB
FireWire (charging only)
Wi-Fi (802.11b/g)
Bluetooth 2.0+EDR
Battery Lithium-ion polymer battery
Physical size Original:
4.5 in (110 mm) (h)
2.4 in (61 mm) (w)
0.46 in (12 mm) (d)
3G:
4.5 in (110 mm) (h)
2.4 in (61 mm) (w)
0.48 in (12 mm) (d)
Weight Original: 135 g (4.8 oz)
3G: 133 g (4.7 oz)
Form factor Candybar Smartphone
Media iTunes Wi-Fi Music Store