Engadget is reporting that while Apple was busy suing Qualcomm over Snapdragon chips on November 29th, Qualcomm was filing its own lawsuit claiming that phones ranging from the iPhone 7 to the iPhone X violate 16 patents.

These patents include including power-saving methods, interfaces, and even camera autofocus.

It seems most likely that this is more than likely a game of chicken, one that Apple could easily afford to win especially considering the FTC is also investigating Qualcomm for anti-trust practices.