Minutes
of Expert Online-Sep.27,2001
Mr.Wang Quan,Deputy
director of 3G strategic planning division of UTStarcom
 Mr.
Wang Quan
Wang Quan is the deputy director of 3G strategic
planning division of UTStarcom, responsible for the 3G business development
with operators and cooperation partners in China, as well as the business
development related strategic planning. Prior to joining UTStarcom,
Quan was the director of strategy and business development of LinkAir,
responsible for system and handset vendor partnership/alliance, and
technical marketing to wireless operators in China.
Earlier, Quan was the senior marketing manger of wireless group, Lucent
China, responsible for strategic marketing, business development, and
product marketing in cellular (GSM, CDMA, GPRS, WCDMA, cdma2000, HDR),
WAS (Wireless Access System), and Mobile Internet. Before coming to
Lucent, Quan was the research fellow in CIIED (Center of Information
Infrastructure and Economic Development) and RMIT (Royal Melbourne Institute
of Technology, Australia) respectively, lecturer of Southeast University,
and engineer of Philips Radio Communication System, Australia.
Quan earned a bachelor's degree in radio communications from East China
Institute of Technology (Nanjing), and a master's degree in radio communications
from Southeast University (Nanjing) and a doctoral degree in information
engineering from Beijing University of Posts and Telecommunication (Beijing).
Q: CAN you give me a brief
account about the Solution of your Comapany?
A: UTStarcom has over 2500 staff, in which there are over 1000
R&D staff.
UT's product portofolio include: PAS (Personal Access System), AN2000
(wireline access system), MAN, softswitch, and 3G.
Q£ºNortel win so many contracts
, but why Nortel's stock dump 89% percent ,.?? Is their any good news
now ?
A: I have no comments about other company
Q£ºwhat's the view of GPRS
? will GPRS network will shoot up ?
A£ºI think the market of GRPS will depends on the number of terminals
for GPRS, the data rate and time to market for 3G.
Q£ºMay I know the major difference
between UMTS/TD-SCDMA core networks ?
A£ºI think the main difference at this stage is that TD-SCDMA
use A/Gb interface, while UMTS use the Iu interface
Q£ºSo the mobility management
will be totally handled by SGSN not RNC in TD-SCDMA ?
A£ºmobility management is handled in MSC, BSC/RNC instead of only
SGSN
Q£ºWhat is the advantage of
UTStarcom's IP-based core network?
A£ºOur CN platform can support multiple mobile technologies: including
GSM, GPRS, WCDMA and TD-SCDMA. Our CN has the strong the scalability.
A system can start small and gradually increase by adding Gateway and
servers
Q£ºdo UT's core network solution
use IP in A interfaces (MSC/BSC) ?
A£ºThe A interface use TDM technology, but our TD-SCDMA core network
transform the TDM into IP, and then use IP.
Q£ºPersonally, I think UMTS
introduces Iu to push SGSN/MSC functions to RNC side in order to improve
system scalabilty. How TD-SCDMA handle SGSN/RNC mobililty management
singaling (such as SGSN relocation) based on existing Gb ?
A£ºBased on my knowledge, Current TD-SCDMA technology doesn't
change any high level CC/MM signaling flow, may change later
Q£ºif TD-SCDMA does not change CC/MM, SM/GMM flow, MM/GMM seems
to be handled by MSC/SGSN only ? I think the reason why UMTS can push
to RNC is coz they introduce Iu in RNC/SGSN, am I correct ?
A£ºthe standard MM functionality is supported with TD-SCDMA own
feature.
Q£ºIt seems to me that TD-SCDMA
using existing GSM/GPRS L3 (CC/MM/GMM/SM/...), am I right ?
A£ºWe are studying the related opportunity.
Q£ºDoes UT consider QoS issues
if your system build on IP ? especially A interface. (Voice/Circuit
switch)
A£ºsince our TD-SCDMA core network is the IP based Intranet, and
the capacity of IP switch is big enough, the Concentrator IP Switch
and Core Switch are the state-of-the-art QoS guaranteed IP switches,
with a switching capacity up to 480Gbps, at peak performance of 178Mpps
and a guaranteed latency less than 10 microseconds during peak performance,
therefore the QoS of our IP based TD-SCDMA CN can be ensured.
Q£ºSorry to ask a stupid question,
what does CATT stand for ?
A£ºChina Academy of Telecommunication Technology
Q£ºCan UT IP Core net provide
services for the mobile system based on CDMA2000 or WCDMA?
A: UT's Core Network support GSM, GPRS, UMTS and TD-SCDMA, but
not cdma2000 so far.
Mr.Wang together with the " expert online" staff.
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