Wireless chip rivals Qualcomm and Broadcom ended a long series of legal battles this week with an agreement under which Qualcomm would pay Broadcom $891 million over the next four years to settle patent claims. In addition to ending litigation between the companies, the pact, announced on Sunday, also provides Qualcomm and Broadcom with exchange rights to each company’s patent portfolio. Broadcom also said it would withdraw antitrust complaints against Qualcomm that are currently pending before the European Commission and Korea’s Fair Trade Commission. Although a San Diego district court last month dismissed Broadcom’s most recent challenge against the legality of Qualcomm’s patent licensing policy (which requires separate royalties for wireless handsets and the chips used in those handsets), the majority of the companies’ battles were centered upon handset power and wireless data transmission patents held by Broadcom and alleged infringements of those patents by Qualcomm. After a federal jury held Qualcomm in violation of three such patents in 2007, the U.S. International Trade Commission (ITC) banned the importation of foreign-made handsets, PDAs and other wireless devices that contain infringing Qualcomm chipsets. (The ITC ban was overturned by the Federal Circuit Court of Appeals last fall.) While the settlement preserves the model used by Qualcomm to license its technology, Broadcom will not be obligated under Sunday’s agreement to pay Qualcomm patent royalties on the chips it sells. Describing the agreement as one that “removes uncertainty for Qualcomm and its customers,” a Qualcomm official said his company would make its first payment of $200 million to Broadcom by the end of the current quarter.