Leading wireless carriers and telecoms equipment makers have agreed to develop an advanced mobile phone standard capable of sending high-resolution video in an instant, Japan?s NTT DoCoMo says.

A group of 26 companies, including Vodafone, Germany?s Siemens AG, France?s Alcatel and Japan?s NEC and DoCoMo, will support the standard.

The technology will offer transmission speeds more than 10 times as fast as the current third-generation (3G) service.

The Nihon Keizai Shimbun business daily said DoCoMo aims to offer the high-speed service as early as 2009. The operator is likely to invest more than 100 billion yen (510 million pounds) to upgrade its telecoms infrastructure for the launch.

The unified standard is expected to create demand for cellphones with a large liquid crystal displays for playing games and watching movies, and to help handset makers cut costs through mass production.