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Technology Stocks : Qualcomm Moderated Thread - please read rules before posting -- Ignore unavailable to you. Want to Upgrade?

To: dwight martin who wrote (31714)	1/25/2003 5:40:32 PM
From: Jim Mullens	Respond to of 197056

Dwight, Thanks for finding that interesting report on corDECT. It’s a bit dated (1997), but appears to answer a number of questions. Regarding the handset itself- (as you say, appears not to require CDMA technology, therefore no financial benefit to Qualcomm.). The next question of course is, of the number of subscribers Reliance has been targeting, are any of those corDECT subscribers, and if so how many? Handset description- The handset is a small, portable battery operated unit that allows subscribers limited mobility at pedestrian speed. The subscriber can have access to any CBS connected to one DIU. a handset can be operated up to 200-meters from a CBS depending on the obstacles. The wallset can be connected to a standard fax machine or a modem. Other information- 1. The new system, called corDECT, is the product of a two-year collaboration between the Indian Institute of Technology, Madras, and Midas Communication Technologies, Madras, in India, and the US semiconductor manufacturer Analog Devices Inc. The corDECT wireless local loop system is said to offer significant cost and operational advantages over traditional wired loops and over conventional macrocellular wireless cellular systems. 2 The new corDECT system is based on the Digital Cordless Telecommunication (DECT) Standard, developed by the European Telecommunications Standards Institute. The CorDECT system is built around a microcellular architecture in which the area to be served is divided into a large number of tiny cells, the so-called microcells. A cell radius in a typical macrocellular system could range from 8-km to 15-km, while the radius of a corDECT microcell could be as small as 250-meters. The radius of an individual microcell depends on the density of subscribers to be served in a neighborhood. 3. The corDECT wireless local loop replaces cables from junction boxes to subscriber premises with wireless access points over a neighborhood. The corDECT system contains three subsystems -- the DECT Interface Unit (DIU), compact base stations (CBS), and subscriber access units that could be either fixed wallsets or portable handsets. The DIU is the heart of the corDECT system. It is an ADPCM switch that serves as an interface between the public switch telephone network and the CBS. The DIU also serves as the base station controller. Each DIU is connected to a maximum of 20 CBS and each CBS itself serves between 30 and 70 subscribers, depending on the traffic. The DIU is connected to the public switch telephone network through standard E1 lines. It controls functions such as base station powering, call controls, PCM/ADPCM transcoding, and calls set-up and tear-down. The DIU also performs system operation and maintenance and remote fault monitoring functions. Each CBS can be located up to four kilometers from a DIU. The CBS is a small, pole-mounted or wall-mounted electronic unit that provides 12 simultaneous speech channels. Each CBS serves one microcell with a typical microcell radius ranging from 50-meters to 1000-meters. The CBS is connected to the DIU through standard twisted copper pair links that carry data in the ISDN format. Each line can carry four ADPCM speech channels and one channel of 16kbps signaling. The CBS installed without the need for frequency planning is equipped with antenna for 'talking' to the subscriber wallsets or handsets. The radio transceiver in the base station can operate in any of the ten DECT frequencies on any of the 12 slot pairs. The subscriber access unit (handset or wallset) is an intelligent device that continuously looks for access to the strongest base station among many and locks on to the quietest channel through the dynamic channel selection procedure. This ensures interference free communication. Encryption in the air interface protects from eavesdroppers. The handset is a small, portable battery operated unit that allows subscribers limited mobility at pedestrian speed. The subscriber can have access to any CBS connected to one DIU. The wallset is a wall-mounted unit with an external antenna powered by mains but with a standby battery pack. A wallset can be used three-kilometers from a CBS while a handset can be operated up to 200-meters from a CBS depending on the obstacles. The wallset can be connected to a standard fax machine or a modem. >TABLE 2: Comparison: corDECT with Macrocellular: DECT Cellular Base Stations Many, Inexpensive Few, Expensive Cell Radius 200-m to 3-km 7-km to 18-km Data Transmission Supported Not Supported Mobility Low, Pedestrian High, Automobile Capacity High Low< >TABLE 4: Comparison: corDECT with CDMA DECT CDMA Frequency Planning Not required Required Power Planning No power planning Power planning is complex Voice Quality 32kbps 9.6-13kbps Subscriber Density Very High Low Services Supported voice/fax/data/ Limited data handling< 5. Four Indian companies -- Shyam Telecom and Crompton Greaves in New Delhi, the Electronics Corporation of India Limited in Hyderabad, and Westel in Bangalore -- have bought corDECT technology for domestic manufacture. Analog Devices Inc. will handle global sales. The biggest market for this technology is in developing countries where the demand for basic telecom services is spiraling. According to market estimates, China, Brazil, and Russia alone will account for more than 150-million installed wireless local loop lines from nearly 300-million lines expected to be installed around the world over the next five to ten years. Other big markets over the next decade are in India, Indonesia, Mexico, and Thailand.