Korea and Japan are planning to develop a fourth-generation mobile phone network.
The two countries have agreed to form a working group to develop new technical standards later this year.
4G networks promise to deliver seamless services to mobile phone handsets, including movies on demand and video conferencing.
The plan was announced after a meeting of the Korean Communications Minister, Mr Yang Seung-taik, and the Japanese Home Affairs Minister Mr Toranosuke Katayama.
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According to the Korea Times, the two countries are also planning to co-operate in high-speed internet and e-commerce policies.
They are planning to launch a trial high-speed satellite service before they co-host the 2002 World Cup finals in May.
PA