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Technology Stocks : Interdigital Communication(IDCC) -- Ignore unavailable to you. Want to Upgrade?

To: Gus who wrote (4188)	4/27/2000 4:12:00 AM
From: Gus	Respond to of 5195

Anyway, the fixed broadband wireless access charter of 802.16 is very interesting in light of IDC's pending patent applications involving CDMA systems with fixed and mobile units as described by Renntech: Code division multiple access communication system - has fixed and mobile units communicating with base station modems, each using code division multiplexing with pilot for synchronism Abstract (Basic): WO 9702714 A The communication system includes fixed subscriber units (FSU) and mobile subscriber units (MSU). Groups of these units communicate with a single modem (104) on the same radio frequency. Each unit has its own message code that is combined with the information data to generate modulation for the carrier. The modem at the radio carrier station (101) separates the information data out into separate channels (131-137) and sends them to a distribution unit (102) which is connected to a local exchange. A global pilot code signal provides synchronisation of the separate channels. Calls are established via a call request signal carrying the identity of the calling unit. ADVANTAGE - Provides multiple channels on single frequency. Has closed loop power control system for maintaining minimum transmit power level for radio carrier station and subscriber units. Improves system performance by having system capacity management, for maintaining maximum number of active subscriber units. Code division multiple access communication modem - has associated fixed and mobile units communicating with base station modems each using code division multiplexing with pilot for synchronisation Abstract (Basic): WO 9702675 A The communication system has fixed subscriber units (FSO) and mobile subscriber units (MSU). Groups of these units communicate with a single modem (104) on the same radio frequency. Each unit has its own message code that is combined with the information data to generate modulation for the carrier. The modem at the radio carrier station (101) separates the information data out into separate channels (131-137), and sends them to a distribution unit (102) connected to a local exchange. The modem interface unit has a PCM bus interface (1220) linked to a number of CDMA modem (1210-1215) transceivers. The unit is controlled by a microprocessor (1240). ADVANTAGE - Provides multiple channels on single frequency and includes power control system ragingbull.com ragingbull.com