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Technology Stocks : Interdigital Communication(IDCC)

IDCC 346.18

-2.4%

Nov 13 3:59 PM EST

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To: Bobby Yellin who started this subject	7/2/2000 9:33:01 PM
From: Gus	Read Replies (1) of 5195

Lining Up For Broadband, Wireless Week Special Section (06/05/00) By Sheila Galatowitsch This spring’s rare planetary alignment may signal more than just another cosmic occurrence. It could herald the impending success ofbroadband services via fixed-wireless networks. That’s because all the elements necessary for wide-scale deployment of fixed-wireless networks finally may have come together: commercially available equipment, operational networks that prove the technology works and customers hungry for bandwidth. Now the companies that have added fixed wireless to their collection of delivery vehicles for broadband services have only one focus–rapid rollouts. The Year Of The Launch (6/5/00) wirelessweek.com Wireless, Broadly Speaking (6/5/00) wirelessweek.com Direct Line-of-sight (6/5/00) wirelessweek.com Approval Of 3G Specs Reshapes The Industry (6/5/00) wirelessweek.com With the backgrounder, here's an interesting look at Hyundai's WCDMA-WLL or fixed wireless program. Note how that it comes to the same conclusions that IDC made when it decided to redeploy its trademarked BCDMA for 3G WCDMA. HEI's WCDMA-WLL Technical Overview (Slide 7 of 20) Multiple Access - DS-CDMA Intercell Synchronization - Asynchronous Frequency: Reverse link - 2.3~2.33 GHz Forward link - 2.37~2.40 GHz Channel Bandwidth - 5/10 MHz Chip rate: Bandwidth/Chip rate - 5MHz (4.096 Mcps), 10MHz (8.192 Mcps) Date rate (kbps) - 8/16/32/64/80/144 Frame length - 20 msec Channel Coding - Convolutional Code (R=1/2, K=7 or 9) Modulation (FL/RL) - QPSK/QPSK Demodulation (FL/RL) - Coherent/Coherent Rate Matching - Symbol Repitition and Puncturing Channel Structure: Forward: PILOT/Sync/Paging/Traffic/Signal Reverse: PILOT/Traffic/Signal/Access Block Interleaving - 5 msec (traffic), 20 msec cdg.org Conclusions: Slide 20 of 20 1) HEI's WCDMA-WLL is a big step foward in CDMA technology 2) Provides Wireline Voice quality and High Data Rate options 3) Upgrade to IMT-2000 System is possible Diagram that shows upgrading a WCDMA WLL system to IMT2000 involves 'a minor change in modem chip and system' while upgrading an IS-95 based system involves a 'major change.' cdg.org

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