Reversing a lower court ruling, a U.S. Court of Appeals ordered an antitrust case brought by Broadcom against Qualcomm to proceed in a New Jersey district court. The case is one of several tangled legal battles between the rival wireless chip makers.

Broadcom originally filed the case in New Jersey on July 1, 2005, claiming Qualcomm violated U.S. antitrust laws by manipulating the standards-setting process and failing to license third-generation cellular technology in a fair and nondiscriminatory manner. The district court dismissed the case on Sept. 1, 2006, and Broadcom promptly appealed the decision.