InterDigital Inc (IDCC)

[F6]

(COMTEX) B: Symena: Symena committed to TD-SCDMA Capesso redoptimizes the "all smart"
networks of the Chinese-backed 3G wireless standard

Vienna, Austria, Feb 20, 2003 (M2 PRESSWIRE via COMTEX) -- Symena announced
that it is committed to developing an optimization tool for TD-SCDMA 3G
standard. The standard has received a substantial allocation of spectrum in
Chinaand several Chinese manufacturers have announced their intention to build
equipment for the network.

TD-SCDMA requires Smart Antennas on every base station in the network. Smart
Antennas in TD-SCDMA are particularly useful in extending the range of base
stations in infrastructure poor areas.

Symena`s core expertise is in the optimal deployment of Smart Antennas in mobile
phone networks. By combining this expertise with Symena`s network optimisation
product, Symena is well placed to provide a valuable contribution to the
development of what will shortly be the world`s biggest single mobile phone
market, China.

"Smart Antennas present special challenges in network planning because their
behaviour is several times more complex to model than conventional antennas,"
said Dr Thomas Neubauer, Managing Director of Symena.

The TD-SCDMA network optimization product will be designated Capesso Red.

"Symena recently announced the differentiation of its conventional and Smart
Antenna optimization products as Capesso Blueand Capesso Orange," said
Christopher Millhouse, Business Development Manager for Symena. "In keeping with
the colours theme we thought that Capesso Red was clearly the most auspicious
hue for TD-SCDMA."

Capesso Redwill incorporate both a highly efficient Smart Antenna modelling
engine as well as automated network optimization. This functionality derives
from Dr Neubauer`s work on network optimization. He was recently awarded the
prestigious Dr Ernst Fehrer Prize from the Vienna University of Technology for
his work on "UMTS System Simulation with Smart Antennas."

About Symena

SYMENA`S network performance enhancement tools deliver significantly improved
coverage and capacity with reduced capital expenditure. This promise depends on
leading edge knowledge of the latest mobile phone standards and technologies
combined with automated optimization expertise. Symena`s Capesso range helps
operators deploy the latest performance enhancing technology in the most
effective way. Testing indicates that optimal configuration of a 3G network can
improve its performance by more than 30%. Symena's knowledge is built on the
work of world class European research and development institutions.

You can learn more about Symena at www.symena.com

CONTACT: Dr Thomas Neubauer, Symena Tel: [phone] e-mail:
[e-mail] Christopher Millhouse, Symena Tel: [phone]
e-mail: [e-mail] WWW: http://www.symena.com

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