Next Generation Networks
- 2. Unit I Evolution of Public Mobile Services
- 3. Topics • Evolution of Wireless Networks • Evolution of public mobile services • Motivation for IP based Wireless Networks • 3GPP, 3GPP2
- 4. Evolution of Wireless Networks • Personal Area Networks (PANs) • Wireless Local Area Networks (WLANs) • Low tier wireless systems • Public wide area wireless cellular radio system • Mobile satellite system
- 5. Personal Area Networks (PANs) A personal area network, or PAN, is a computer network that enables communication between computer devices near a person. PANs can be wired, such as USB or FireWire, or they can be wireless, such as infrared, ZigBee, Bluetooth and ultra wideband, or UWB.
- 6. • Wired PANs: USB or FireWire, • Wireless PAN: – Infrared (430 THz down to 300 GHz). , – ZigBee (902-928 MHz), – Bluetooth 2.4 GHz – and ultrawideband , or UWB (lesser of 500 MHz) . • The range of a PAN typically is a few meters. Examples of wireless PAN, or WPAN, devices include cell phone headsets, wireless keyboards, wireless mice, printers, bar code scanners and game consoles.
- 7. Wireless Local Area Networks (WLANs) IEEE 802.11 Wireless LAN or Wireless Local AreaNetwork is a term to refer to a Local Area Network that does not need cables to connect the different devices. Instead, radio waves and IEEE 802.11 are used to communicate in 900MHz
- 9. Low tier wireless systems
- 10. Wide Area Network (WAN) A wireless wide area network (WWAN) is a specific type of network that sends wireless signals beyond a single building or property.
- 11. Public Wide Area Wireless Cellular Radio System (High-Tier)
- 16. 3GPP
- 17. 3GPP2
- 19. Fundamentals of 3G (Core IP Based)
- 20. IP based Network
- 21. IP based Network • Common IP supports multiple radio access networks • Board range of mobile voice, data and multimedia services • IP based protocols is used for mobility between different radio systems
- 22. • First wave mobile data services: – Text Based instant Message • Second wave mobile data services: – Low Speed Mobile Internet Services – i-mode • Third wave mobile data services: – High Speed Mobile Internet Services Evolution of Public Mobile Services