An anonymous reader writes: Huawei said on Wednesday it has filed lawsuits against Samsung claiming infringement of smartphone patents, in the first such case by the Chinese firm against the world's biggest mobile maker. Huawei has filed lawsuits in the United States and China seeking compensation for what it said was unlicensed use of fourth-generation (4G) cellular communications technology, operating systems and user interface software in Samsung phones. The lawsuit marks a reversal of roles in China where firms have often been on the receiving end of patent infringement disputes. In smartphones, makers have grown rapidly in recent years but different intellectual property laws outside of China have slowed overseas expansion. "We hope Samsung will ... stop infringing our patents and get the necessary license from Huawei, and work together with Huawei to jointly drive the industry forward," Ding Jianxing, president of Huawei's Intellectual Property Rights Department, said.