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Technology Stocks : Qualcomm Moderated Thread - please read rules before posting
QCOM 161.74-1.7%2:24 PM EST

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To: Dennis Roth who wrote (36)7/4/2000 6:45:23 PM
From: Dennis Roth  Read Replies (1) of 197225
 
Siemens, CATT codevelop TD-SCDMA standard
globalsources.com

GERMANY- Siemens and
China Academy of
Telecommunications
Technology (CATT) have
jointly developed a new standard for 3G mobile
networks, the TD-SCDMA.

Since 1998, CATT and Siemens have been jointly
developing a new standard for 3G mobile
networks, the time division-synchronous
code-division multiple access (TD-SCDMA)
technology.

The first successful tests have been conducted at
the joint research and development center in
Beijing. Field trials of TD-SCDMA systems with
mainland's mobile network operators are
scheduled to start early next year, and
commercial systems are expected to be available
at the end of 2001.

The main challenge for 3G mobile systems is to
master both symmetric circuit-switched services
like speech and video, as well as increasing the
asymmetric packet-switched services like mobile
Internet access.

To meet this challenge, TD-SCDMA combines
two leading technologies: designed as an
advanced TDMA* system with an adaptive
CDMA** component operating in synchronous
mode***. TD-SCDMA is well suited for all 3G
applications (symmetric services like voice and
video, and asymmetric services like mobile
Internet).

Furthermore, the radio transmission principles of
the system allow optimum utilization of radio
spectrum allocated for 3G****.

Seamless operation with GSM networks
This mainland-endorsed international standard
can be implemented less expensively than
comparable 3G systems: due to the basic TDMA
operation and the efficient utilization of radio
spectrum, the system is in a perfect position for
seamless operation within existing GSM
infrastructure systems.

This will enable mainland China's GSM
operators to upgrade in a smooth and
cost-efficient manner to 3G, as specifically, the
costs for the overall integration and reuse of
existing GSM core network infrastructure are
decisive factors for the overall economy of a 3G
solution such as TD-SCDMA.

The cooperation of CATT and Siemens and their
joint research, development and manufacturing
efforts express the strong commitment and
believe of both partners in TD-SCDMA. Already,
the system has successfully been proposed by
mainland China by the ITU, and became one of
the international standards for 3G within the
global family of IMT-2000 standards.
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