Japanese mobile company Willcom Inc, which offers wireless services based on personal handy system (PHS) technology, is said to be planning a tie-up with China Network Communications Group (CNC) to expand its low-cost phone business in Asia. The Nikkei business daily says Willcom will provide CNC with technical know-how on ‘packet communications’, whereby the company sets user fees based on data volumes used, rather than a blanket monthly charge. The two firms are also planning to work together to provide roaming services ahead of next years Olympic Games in Beijing, as many Japanese visitors are expected to attend the games. Willcom is a champion of PHS services, a mobile technology that costs less than more advanced GSM/CDMA alternatives. CNC, China’s second largest fixed line telco, is looking to introduce PHS with internet access the Nikkei says.