Nokia had most of the market share back in the day but they stopped innovating and were lively off their monopoly. Now instead of trying to get to the same level as Apple & Google, they are trying to bring Apple down to their level.
Apple owes them nothing.
Nokia is still the largest mobile phone manufacturer by a huge margin. It's larger than the 2nd and 3rd together. It hasn't lost market share.
Apple needs to pay for the essential patents they're using in iphone. There're is just no way around it. It gets all the time more strange that they didn't pay up in the beginning.
To get some other facts straight, Nokia did approach Apple already in 2007 when first iphone was launched, offering them the same fair and non-discriminating terms everyone else in the industry uses.