1. 網路多媒體研究所 WCDMA Technology Past, Present and Future Part VI: Competitive Technology to WCDMA

2. 網路多媒體研究所 Part VI: Competitive Technology to WCDMA 雙網 : WLAN+Cellular 802.16 802.20

3. 網路多媒體研究所 What is “ 雙網 ”? Cellular + WLAN to combine the best of both –Low cost broadband services via WLAN –Anywhere services via cellular Handset and the associated applications are the keys –Without application/service awareness, cellular+ WLAN handset is just dual-mode but not dual-network

4. 網路多媒體研究所 The Features of “ 雙網 ” An important feature of 3GPP R6 –Feasibility studies on WLAN-UMTS interworking are ongoing Single sign-on (bill), global access –New game rule Complementary to 3G and beyond –A prerequisite program for nurturing data applications and services Industry impact –For manufacturer, increasing requirements on WLAN AP/NIC, handset and associated chipset –For operators, strong demands on specific applications

5. 網路多媒體研究所 The Challenge of “ 雙網 ” Interworking –Seamless handover Battery life –Low-power WLAN chipset –To reduce the functionalities/services Business model –SIM-based AAA –Service trial –What is the killer application?

6. 網路多媒體研究所 3GPP-WLAN Interworking (1) Environment –Public/Corporate/Residential –Determine the policy and technique Two modes of user equipment –Single/multi mode 3GWLAN Interworking principle –Minimum coordination functions between 3GPP and WLAN –If necessary, change 3GPP spec to fulfill the requirements 3GPP TR 22.934

7. 網路多媒體研究所 3GPP-WLAN Interworking (2) Open coupling –Shared billing but without interaction between NW Loose coupling –Authentication is unified in UMTS but without vertical handover Tight coupling –WLAN connects to UMTS by Iu Interface and makes vertical handover possible

8. 網路多媒體研究所 What is IEEE 802.16? A GLOBAL standard for a wireless broadband access –akin to Cable and DSL services, last mile Designed for outdoor, long range –High throughput, NLOS propagation, scalability, QoS Supports both licensed and license-exempt spectrum –2~11 GHz frequency band Applicable from dense urban to rural areas –Especially for the environment with poor wired infrastructure IEEE 802.16e enables nomadic capabilities for laptops –Walking or with speed of 120~150 km/hr WiMAX (World Interoperability for Microwave Access ) –WiMAX to 802.16 as Wi-Fi to 802.11 * Other brands and trademarks are property of their respective owners

9. 網路多媒體研究所 WiMAX Backhaul for Business Point to Point BACKHAUL INTERNET BACKBONE Telco Core Network or Private (Fiber) Network Non Line of Sight Point to Multi- point FRACTIONAL E1/T1 for SMALL BUSINESS 802.11 E1/T1+ LEVEL SERVICE ENTERPRISE Courtesy of Intel Corporation 2003

10. 網路多媒體研究所 WiMAX Consumer Last Mile INTERNET BACKBONE Telco Core Network or Private (Fiber) Network Non Line of Sight Point to Multi- point OUTDOOR CPE INDOOR CPE 802.11 Point to Point BACKHAUL Courtesy of Intel Corporation 2003 802.11 & 802.16

11. 網路多媒體研究所 WiMAX Nomadic/Portable INTERNETBACKBONE Telco Core Network or Private (Fiber) Network Non Line of Sight Point to Multi-point 802.16 802.16 SEEKS BEST CONNECTION Laptop Connected Through 802.16 2 to 3 Kilometers Away Line of Sight BACKHAUL 802.16 PC Card

12. 網路多媒體研究所 IEEE 802.20 An IP data-optimized MBWA technology –Spilt from 802.16 in 2002.07 –Project approved by IEEE-SA in 2002.12 –Cost-effective, spectrum efficient, always on, and interoperable –To fill the performance gap between low mobility 802 network and high mobility cellular network Target market –Mobile carriers –Companies requiring HS data services

13. 網路多媒體研究所 Five Criteria for IEEE 802.20 Define a MAC/PHY specification that –Operates in licensed frequency bands below 3.5 GHz –Supports peak data rates per user in excess of 1 Mbps –Supports vehicular mobility classes up to 250 Km/h –Covers cell sizes commensurate with ubiquitous metropolitan-area networks –Targets spectral efficiencies, sustained user data rates and numbers of active users significantly higher than achieved by existing mobile systems

14. 網路多媒體研究所 802.20 Characteristics Source: IEEE 802.20

15. 網路多媒體研究所 Spectral Efficiency Comparison Source: IEEE 802.20

16. 網路多媒體研究所 Comparison with 802.16e, 802.20, and 3G (1) Source: IEEE 802.20

17. 網路多媒體研究所 Comparison with 802.16e, 802.20, and 3G (2) Source: IEEE 802.20

18. 網路多媒體研究所 Anticipated System Beyond IMT- 2000 Questions needed to answer –Consistent technologies? –Essential demands for user and market? –Universal available for people and devices/machines? –Business models? New radio access technologies to satisfy the anticipated demands for higher BW services. –Support nomadic and mobile wireless access multimedia services with different QoS –Multi-hop to extend coverage and capacity –Long cycle of radio innovation: ~ a decade

19. 網路多媒體研究所 Vision of B3G Seamless NW of complementary access systems

20. 網路多媒體研究所 Beyond 3G and 4G ITU-R M.1654, –"Framework and overall objectives of the future development of IMT ‑ 2000 and systems beyond IMT ‑ 2000" was approved in June 2003. the definition of 4G with the data rate should be around 100Mbps when moving fast like in a train, and 1Gbps when not moving –This Recommendation will be a guideline to develop beyond 3G systems and states the definition of 4G with the data rate should be around 100Mbps when moving fast like in a train, and 1Gbps when not moving