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

To: foundation who wrote (6229)	1/16/2001 8:46:29 PM
From: qwave	Respond to of 197411

Note that this potential deal would be with China Unicom LTD (GSM operator) and not China Unicom parent which took over Great Wall's CDMA assets.

To: foundation who wrote (6229)	1/16/2001 10:17:37 PM
From: grinder965	Respond to of 197411

Ben, Kind of interesting too that all of a sudden we get the article the other day that SKT, along with other operators, "is moving fast to upgrade its network to IS-95C". I personally think they've privately been read the riot act by someone higher up in the Government than the Minister of Information & Communication.. If China ops to buildout IS-95 in a big way, it's quite conceivable that SKT and KT will reverse their decision to go with W-CDMA. I think they now realize that they may have been sold a "bogus bill of goods" and were being used as a pawn by NTT and the GSM Cabal. Will be interesting to see how this all plays out.

To: foundation who wrote (6229)	1/17/2001 1:21:27 AM
From: Sully-	Read Replies (1) \| Respond to of 197411

Operators Share Trial Results at 3G Summit The 3G Mobile International Summit Asia, held recently in Hong Kong, highlighted the results of agency trials on W-CDMA (wide-band code division multiple access); featured a defense of the now-beleaguered WAP (wireless applications protocol) and listed challenges facing 3G services. Third-generation (3G) services for mobile handsets, capable of voice, data and multimedia connections, are scheduled to roll out in 2001. Smartone Mobile Communications Ltd, based in Hong Kong, was enthusiastic about radio propagation in frequencies near GSM 800MHz. The 2.5G/3G trials, conducted late 1999 and 2000, were able to log a data rate of 384kbps on the move (the bit rate stipulated for wide area access). Katherine Kwan, senior manager for access network and solutions development at Smartone, said network loading and interference levels affected mobile borders. The reception also depended on the data rate. This raised the question of network capacity against interference level in a loaded system. Kwan called this the "biggest question" for the future. Refinement Needed She said the trials revealed that a lot of refined development was needed to take the experimental system into the commercial domain; and system parameters needed to be stabilized, she added. Experimental implementations of GPRS suggested the removal of early barriers - the prospect of higher data throughput (up from the theoretical 57.5 kbps to 115 kbps), always on status and connected to the IP domain. Experiences with W-CDMA in the Swedish capital of Stockholm were quantified by testing agency AU-System. According to Fredrik Malmstrom, a network research expert, the evaluation process has made "solid ground for fast deployment of W-CDMA radio access networks." The evaluation system, implemented both in a laboratory environment and in the field, demonstrated improved voice coverage compared to GSM 1800, high speech quality, and highlighted the importance of parameter settings to improve quality of service and the critical role played by the interaction between different protocol layers. The trials were done on an implementation based on an evolved UMTS core network derived from a combination of GSM and GPRS. Parameters Defined The parameters were: voice at 8 kbps, circuit switched data at 64, 128 and 384 kbps, and packet switched data at up to 472 kbps. Universal Mobile Telecommunications System (UMTS) services tested for were Internet applications, video conference, wireless post card, and roaming using GSM SIM card (UMTS is a highly advanced 3G system optimized for GSM operators and developed under the auspices of the European Telecommunications Standards Institute). Malmstrom said the system characteristics were also similar to commercial UMTS specifications - W-CDMA in frequency division (duplex), IMT-2000 spectrum at 2GHz, advanced power control function, and soft-softer hand-over between sectors in different base stations and between sectors in the same base station. Equipment vendor Alcatel argued in favor of GPRS as a mandatory first step along the migration route to 3G. Erwan Menard, head of marketing for mobile solutions at Alcatel, said pilot implementation of GPRS in France and China had shown that it is an important learning step because it allows operators to get in touch with a first multiservice traffic model. Other hands-on issues accessible on 160 kbps GPRS are: opportunities to build up IP skills on the core network side; to learn how to optimize a multi-service network; and learn the ropes of multi-vendor end-to-end interoperability. Menard suggested two routes from GPRS to 3G. One an evolutionary path via Enhanced Data Rates for Global Evolution (EDGE) and the other a straight leap to UMTS offering rates up to 2 Mbits/s, Internet services (based on the standard specifications of release 1999) and multimedia capabilities. Bit Rate Enhanced He said EDGE (also referred to as enhanced GPRS or E-GPRS) would allow an interim enhanced bit rate of 473 kbps, Internet services of phase one, and multimedia (a phase short of that supported by UMTS). According to Clive Woodlock, regional director for Asia-Pacific of the Universal Wireless Communications Consortium (UWCC), EDGE is characterized by its ability to support both packet and circuit switched data, thus supporting existing GSM systems (1900, 900/1800). EDGE enhancements support simultaneous voice and packet data calls, data services involving transfer rates of up to 473 kbps, voice capacity, IP voice and IP video calls. by M K Shankar (January 2001 Issue, Nikkei Electronics Aisa) nikkeibp.asiabiztech.com Ö¿Ö