According to a Reuters story, the U.S. isn't currently planning to file an official complaint against China over its proprietary encryption technology: Late last year, the Chinese government banned Wi-Fi gear that didn’t include its homegrown encryption standard, known as WAP (Wired Authentication and Privacy Infrastructure). The government also said that non-Chinese companies that wanted to build to the standard could only do so by partnering with Chinese companies because only Chinese companies can license the technology.
Chipmakers outside of China have rebelled against the idea, as it requires them to build different chips for China than the rest of the world. Broadcom has been one of the most vocal opponents of the plan, citing concerns about outside companies having to share intellectual property with Chinese partners if they want to build to the standard.
The unnamed official in the Reuters story said the U.S. hasn’t ruled out an official WTO complaint. In the mean time, the official said the U.S. government is using other means to pressure China to change its plans.
The story also notes that the Wi-Fi Alliance says that no U.S. chipmaker has agreed to comply with China's requirements, though some are exploring the requirements. A story that ran in the middle of February, however, quotes TI and Atheros executives saying that they are working on products based on the Chinese standard. More on this to come.