The meeting took place on Tuesday evening in Tokyo but was not publicised by the carrier.
"I think it is the first time that all of the members of the ecosystem were pulled together at one site hosted by NTT DoCoMo and to understand their shared vision," said Tony Sica, vice-president and director of marketing at Intel's Wireless Communications and Computing Group, who attended the meeting.
"As we move forward and have discussions and collaborations with DoCoMo, I think each one of us will understand where we can add value to their road map," he added.
NTT DoCoMo has already begun working on 4G technologies and established a research and development laboratory earlier this year to pursue the research.
Most recently, the company announced the labs had succeeded in transmitting data over an experimental 4G mobile telephony system at a downlink speed of 100Mbps and an uplink speed of 20Mbps.
DoCoMo aims to launch a commercial service by 2010, which offers data transmission speeds that are around 275 times faster than the 364kbps top speed of the carrier's 3G network.
DoCoMo has also worked with Hewlett-Packard in the field of streaming video. Intel's Sica said his company has already begun work with the carrier in the area of security and is now looking at expanding into other areas.
DoCoMo's 4G research push began shortly after it commercialised its 3G network - a network that is still struggling to attract the attention of consumers and has fallen far short of initial predictions.
At the end of September, DoCoMo's Foma 3G service had attracted 135,700 consumers, according to data from the Telecommunication Carriers Association. DoCoMo had expected to see 1.38 million subscribers using the network by the end of 2002, but recently admitted it would be unable to achieve its goal.