Motorola has filed a complaint with the US ITC against Microsoft, claiming that the Xbox 360 violated a number of the company’s patents.

The move was described as somewhat of a response to the earlier Microsoft’s lawsuit, which accused Motorola of excessive and discriminatory royalties. Motorola now claims Microsoft infringed a number of their patents in its Xbox 360.

Motorola asks for a halt of Xbox 360 sales until the matter is cleared up. The US ITC said investigation is expected to conclude early in 2011.