Nokia is desperate because their business is failing. It may survive, but it may not. So now it's stated that it's doing what it didn't really bother to do in the past, which is to aggressively squeeze out profits from its patent portfolio. I have nothing against that. I think that patents are important, and that companies have the constitutional right to get paid for their work.
That said, Nokia smells of desperation. Without large cash infusions from Microsoft, they won't have enough money to continue coming out with new products soon. They are using up their cash at a high rate, and have two large bond issues coming near to payout. It's thought they may not be able to pay them.
Again I will ask you, why is it deseration when Nokia wants to protect a revenue flow? Regardless of their finanical status they have that right to try and protect it, you still haven't come up with a single reason why they shouldn't be.