Without first sorting out the issues with its wi-fi version of the PlayBook, it planned to launch 4G WiMax and LTE (Long Term Evolution) versions of PlayBook.

FORBES: Don't Expect Much From RIM On PlayBook Sales

For the Telecommunications Systems Business, sales and profitability improved year-on-year due to the expansion of its 4G Long-term Evolution (LTE) business and 3G network upgrade business.

ENGADGET: Samsung's Q3 2011 overall profit falls despite incredible phone sales

The Telecommunication Systems business saw growth both in revenue and operating gains due to an increase in LTE (Long Term Evolution) wireless broadband technology equipment.

ENGADGET: Samsung's Q1 2012 profits nearly double year-over-year on higher margins for TVs and phones