After failing to produce thousands of documents in its patent trial against Broadcom, Qualcomm argued in court papers this week that the mistake was unintentional and that it shouldn’t have to pay Broadcom’s legal fees.

Qualcomm has also designated global giant DLA Piper as its lead counsel in the matter, replacing Cupertino, Calif.-based intellectual property boutique Day Casebeer Madrid & Batchelder in that role, DLA Piper partner William Boggs said Wednesday.