And it can’t be accused of backing away from a fight with a major client: Qualcomm went to lengths to counter the claims Apple just made while suing Qualcomm for $1 billion and demanding big licensing practice changes. But Qualcomm’s remarks and responses to analyst questions didn’t do much to soothe fears that the company is in for a prolonged fight that has the chance to upend some of the business practices of a licensing business that produces well over half of its operating profit.