4. HSDPA

• Description:
  

High-Speed Downlink Packet Access (HSDPA) is a new mobile telephony protocol and is sometimes referred to as a 3.5G (or "3½G") technology. In this respect it extends WCDMA in the same way that EV-DO extends CDMA2000. HSDPA provides a smooth evolutionary path for Universal Mobile Telecommunications System (UMTS) networks allowing for higher data capacity (up to 14.4 Mbit/s in the downlink). It is an evolution of the W-CDMA standard, designed to increase the available data rate by a factor of 5 or more. HSDPA defines a new W-CDMA channel, the high-speed downlink shared channel (HS-DSCH) that operates in a different way from existing W-CDMA channels, but is only used for downlink communication to the mobile.

• Enablers:
  

1. UMTS standardization
2. HSDPA H/W and S/W evolution
3. HSDPA Devices
4. Killer Application
5. Reasonable service price
6. Government policy in favor of HSDPA

• Inhibitors:
  

1. Rapid penetration rate of Wibro
2. Difficulties in agreement among industry like convergence service of banking and communications using mobile chip
3. Retardation of HSDPA service

• Paradigms:
  

1. Multi-communication is possible by multitasking such as calling and browsing, calling and SMS, etc.
2. User will have their own UICC communication chips like GSM SIM card.
3. UICC chip application like security and will be popular
4. Users don't have to change their phone for global roaming.

• Timing:
  

2006 2Q: SKT and KTF commercialized HSDPA service in May 16 and June 30, 2006.
2006 4Q: HSDPA coverage will include 84 cities in the end of 2006
2007 4Q: Data speed will reach to 7.2Mbps in the end of 2007

• Web Resources:
  

http://en.wikipedia.org/wiki/High-Speed_Downlink_Packet_Access