Google Inc is preparing to test new technology that may provide the foundation for a wireless version of its high-speed "Fiber" Internet service, according to telecommunication experts who scrutinized the company's regulatory filings. In a public but little-noticed application with the U.S. Federal Communications Commission on Monday, Google asked the agency for permission to conduct tests in California across different wireless spectrums, including a rarely-used millimeter-wave frequency capable of transmitting large amounts of data.