Ericsson Mobile Platforms

Due to the European telecom crisis in the beginning of the 2000s, Ericsson Mobile Communications became unprofitable, and was split in two parts: one part was merged with the mobile division of Sony and formed Sony Ericsson, aimed at developing mobile terminals for the consumer market.

At the same time, the other part of Ericsson Mobile Communications formed Ericsson Mobile Platforms. Some of their customers were Flextronics, HTC, LG Electronics, NEC, Sagem, Sharp, Amoi and of course Sony Ericsson. The main focus of the company was around the development of a mobile platform for the third generation of mobile telephony, UMTS.

At the end of 2004 Ericsson Technology Licensing was de-established, and select parts of that company was folded into Ericsson Mobile Platforms.

October 3, 2008 the company showcased a handheld prototype for LTE (fourth generation mobile telephony). At this time, the company stated that they estimated to have the technology available for the market around the year 2011.

The company existed for 8 years, but February 12, 2009 Ericsson announced that Ericsson Mobile Platforms would be merged with the mobile platform company of STMicroelectronics, ST-NXP Wireless, to create a 50/50 joint venture owned by Ericsson and STMicroelectronics called ST-Ericsson. This joint venture collapsed in 2013 and remaining activities can be found in Ericsson Modems and STMicroelectronics. Ericsson Mobile Platform disappeared as a legal entity early 2009.

The company took over the internal platforms that had been developed in Ericsson Mobile Communications under names such as Sandra, Jane etc., and developed a series of platforms tied to certain specific radio standards:

Open Platform API or "OPA" is the name given to the platform used across Sony Ericsson phones in Europe.