What you are describing, the continuous vs. stair step method of the power ramp patents. That is not an issue at the ITC anymorew. That issue was resolved by the CAFC.
The primary issue regarding infringement of the power ramp patents involves the use of short codes and how the short codes are derived. Nokia uses scrambling codes which they say are not transmitted. They say IDCC's short codes are transmitted. IDCC says nowhere in the patent claims does it say that the codes need to be transmitted.