4G Activities in Korea


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INTRODUCTION

korea is one of the world's most concentrated markets for
high-speed Internet connections. There are also about
36.6 million mobile phones users, or 75 percent of the
population. Broadband service providers have recently been
hit by slow growth, saturation in the market and weak
consumption caused by an economic downturn that has put
the emphasis on the need for new services. We hope the
WiBro service would create a new source of revenue for the
country's saturated fixed-line and mobile telecommunication
markets.



THEWIBRO SYSTEM AND ITS SERVICES

The WiBro system, an official name of portable Internet
system in Korea and a stepping stone toward fourthgeneration
mobile communications, is ready to launching its
services in 2006. The WiBro is a homegrown variant standard
of IEEE802.16e which has, apparently, now been folded into
WiMAX so there will be international harmonization. It's
expected to cost about $30 a month for getting Wibro services.
Current portable Internet specification is mainly based on
IEEE802.16 [4] with additionally requests to support TDD
mode and the seamless service over 60 km/h. TDD system has
been proved to provide a good solution for high-speed packet
transmission which has the specific features such as the
discontinuous data transmission and the traffic asymmetry
between uplink and downlink.


THE HIGH-SPEEDMOBILEMULTIMEDIA (HMM) SYSTEM

It is expected that the standardization for beyond 3G mobile
system will take concrete shape after 2007. Hence the
standardization process for beyond 3G mobile system will be
a de facto standardization process in which a system is
developed and commercialized before standardization.
Therefore, ETRI is developing basic unit core technologies for
beyond 3G mobile system not only for co-existence with the
IMT-2000 system in the high speed packet data market, but
also for taking initiative on standardization and development
of the system.


R&D ACTIVITIES IN KOREA FOR BEYOND 3GMOBILE COMMUNICATIONS

1) R&D Strategies for B3G in Korea: Beyond 3G mobile
communications including next generation mobile
communications are being developed in Korea through a
cooperative research work among various organizations
including Electronics and telecommunications Research
Institute (ETRI), universities, mobile service operators, and
domestic manufacturers. This cooperative activity is led by
ETRI with contributions from many participating
organizations and collaborative work via international
partnership. Goals of Korea’s R&D activities on beyond 3G
mobile communications are to take global leadership in
wireless telecommunications, to achieve a 30 percent share of
the world market, and to establish the world’s first Broadband
Convergence Network (BcN) based infrastructure that can
unify wired, wireless and broadcasting systems.