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Outline 2

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Issues 4

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What is WIMAX? 9

HOW WIMAX works? 10

IEEE 802. 16 Specifications 11

Issues 12

Issues 13

802. 16 Backhaul for Business 14

802. 16 Consumer Last Mile OUTDOOR CPE INDOOR CPE 15

SEEKS BEST CONNECTION 16

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Wi. Bro in South Korea 20

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Adaptive Modulation 25

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Key Advantages of Mobile Wi. Max to 3 G 33

Outline 34

What people spend on Telecom! 35

And on mobile phones! 36

Terminal Convergence 37

From 1 G to 3 G 38

Frequency Allocation for 3 G 39

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The new Telecom Industry 43

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3 G CDMA 2000 evolution 45

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The shared channel concept 53

Key ideas in HSDPA 54

Reduced latency 55

Code sharing for shared channel 56

Issues 57

Increase average speed by serving channels that can be best served!! 58

Issues 59

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Hybrid Automatic Repeat Request 62

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HSDPA Mutli-User Diversity Efficient scheduler 64

Issues 65

Still more papers on this 66

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Outline 80

In 1987! 81

Outline 82

An upcoming technology collision!? 83

Many issues are involved 84

Issues 85

Issues 86

Issues 87

Do not forget Wi. Fi! 88

Issues 89

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Wi. Max is too late! 93

Wi. Max is too late! 94

Issues 95

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Almost at the limits 98

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Issues 104

Work on Interworking 105

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The last word!! 114

Outline 115

What do we do? 116