CHICAGO (AFP) - US mobile phone giant Motorola has announced plans to buy technology infrastructure group Symbol Technologies in a 3.9 billion-dollar deal.

The deal gives Motorola, the largest US maker of mobile phones, a range of technologies in mobile computing, radio frequency identification (RFID) and laser bar code scanning, among others.

Symbol's products and services "help customers increase workforce productivity, improve customer service and enhance operational efficiencies by delivering information in real-time, as people, information and assets are on-the-move," Motorola said in a statement.

"Everything is going digital, and everything digital is going mobile -- this is especially evident in the way businesses are run today," said Motorola chairman and chief executive Ed Zander.

"Motorola and Symbol share the same vision of a digital, mobile world for enterprises that matches the world people enjoy at home and at play. This transaction significantly advances Motorola's enterprise mobility strategy and is consistent with our focus on building on our already strong intellectual property portfolio and extending Motorola's seamless mobility leadership."