InterDigital and RIM have reached an agreement to extend thet terms of their patent licensing agreements. 

In addition, the companies said in a statement that they have agreed to amend the patent license to add coverage for 4G products, including LTE and LTE-Advanced products. 

"This agreement, which extends the term of our patent license with RIM and includes 4G product coverage, continues the strong validation of InterDigital's patent portfolio and our patent licensing program," said Lawrence Shay, president of InterDigital's patent holding subsidiaries. 

RIM has been slowly but surely getting its patents in order ahead of its impending BlackBerry 10 launch. In late Decemeber the company settled a long-standing patent dispute with Nokia. That agreement included a one-time payment and on-going payments, all from RIM to Nokia, but the terms of the agreement were not disclosed. 

RIM has admmitted to being slow to integrate LTE into their devices. However, the FCC last week approved a BlackBerry 10 device that supports AT&T's 3G and 4G bands.