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PHS MoU Group Workshop
WILLCOM
1."Promotion & Killer
Application" by Mr. Fujii
 |
composed of nationwide 160 thousands
cell stations. Differentiation from other companies' flat-rate
services will also be made within a limited range. Further, an
expansion of the PHS handset's possibilities, promotion of
other industries to enter into the PHS market and the effect of
reducing price can be expected with
WILLCOM-Subscriber Identification Module (W-SIM) used in the
mobile communication terminal "W-ZERO3". WILLCOM will aim
at market expansion by meeting demands for kids, medical
facilities etc., strengthening partnership with contents
providers such as those for stock exchange site. |
WILLCOM has realized both voice and
data
flat-rate service by taking full
advantage of microcell
network |
2."PHS beyond 3G" by
Mr. Yoshioki Chika
WILLCOM is fully responsible for
design, integration and operation of the PHS system
and
developing the PHS business variously with unlimited flat-rate service,
SIM style etc.
High-speed communication can be realized
without environmental influences at extremely
high-efficiency
frequency utilization thanks to ultra high-density microcell planning. The
key
is not its communication speed but frequency utilization
efficiency. Advanced PHS (APHS)
reinforced by IP access,
half-rate technology etc. has a capability close to that of
3.5G
phones. Further, WILLCOM will be promoting the next
generation PHS for wireless
broadband services.
Lucent Technologies
"China PHS Business
Review" by Mr. Nathan Liu
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have reached 92 million which is 45% of the
fixed
telephone subscribers' net increase.
Services
have also been diversified. Lucent's
networks
based in Quanzhou, Fujian and Qingdao,
Shandong
markets have very high-performance. Lucent
will
be realizing 2.5G PHS by introducing
packet
technology etc. from now on. Even for
successful
introduction of packet into the Chinese market,
all
concerned parties should share information
and
cooperate. The PHS MoU Group
Secretariat's
strong support would be very much
appreciated. |
| In China, accumulated
PHS subscribers |
ZTE
"Target on China Market, Promote
Packet Service" by Mr. Andrew Zhang
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getting small and some cities
tended to
experience slight subscriber decrease. Now
a
small-scale network design and
network
optimization have become the mainstream
and
the competition among the mobile phone
service
providers has become very severe, it's
possible to activate
the PHS market by
introducing packet service into the
Chinese
market and make that diffuse there.
Therefore,
new business model should be established
prior
to 3G in cooperation with the terminal
vendors
and the PHS MoU Group Secretariat in
addition
to the system vendors. |
Even in the world's biggest Chinese
PHS
market, new subscriber numbers
are |
UTStarcom
"PHS Solution Evolution"by Mr. Pun
Lam
 |
continuously conducting the worldwide development
of an IP access network, reduction of the seamless HandOver
(H/O) time, capacity increase of the Short
Messaging Service (SMS), an introduction of packet service
and Fixed Mobile Convergence (FMC) etc. As for the introduction
of new packet service, there will be a possibility of
various markets and applications. Further, UTStarcom will
be promoting the PHS business by opening the Value Added
Service (VAS) platform as an incentive for other companies to
enter into this business and by enriching the service
contents as well. |
| UTStarcom has been supplying telecommunication equipment
worldwide. For further development, UTStarcom
is |
ArrayComm
"Pitfalls of Modern OFDM Air
Interfaces"by Mr. Peter Khoury
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Frequency Division Multiplex (OFDM)
are to be
made. The bigger the window in
time/frequency,
the more accurately frequency/time offset
can
be measured. Specific pilots for each user
can
be used for such measurement, however,
those
number must be sufficiently bigger than the
total
number of sources and have low
cross
correlation as well. If the interference
is
averaged, valuable source of diversity will
be
provided to the system. Different Pseudo
Random
Bit Sequence (PRBS) is to be used
during retransmission of
failed packet and the
minimum traffic amount is necessary
for
maximum efficiency. |
| ArrayComm has a history of having worked on variety of air
interfaces and here a few suggestions based on
its experiences particularly on Orthogonal |
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