Core Viewpoint - The recent patent lawsuit initiated by Datang Mobile against Xiaomi in Germany over 4G-related patents has sparked significant industry discussion, raising questions about the implications of such disputes between Chinese companies in foreign jurisdictions [1][2]. Group 1: Patent Details - The patents involved in the lawsuit pertain to LTE/4G technology, specifically: EP2237607 (method and device for cell switching), EP3713313 (uplink power control method and mobile communication terminal), and EP2315369 (adaptive modulation and coding method and device) [2]. - The choice of a foreign jurisdiction for the lawsuit has been criticized by industry experts, who argue that such disputes could be resolved within China's judicial system [2][18]. Group 2: Xiaomi's Patent Litigation History - Xiaomi has faced ongoing patent disputes with Huawei, a leading global communication technology company, particularly in the 5G domain where Huawei holds numerous core patents [4]. - In 2023, Xiaomi filed invalidation requests against several Huawei patents, including those related to critical communication technologies [12][14]. - Xiaomi's strategy of seeking patent invalidation is aimed at reducing restrictions on technology use and lowering potential licensing costs, thereby gaining a competitive edge in the market [14]. Group 3: Legal Proceedings and Outcomes - Xiaomi has frequently engaged in legal actions against the National Intellectual Property Administration (NIPA) in China, with over a thousand lawsuits filed in the past six years [17]. - Xiaomi's success rate in patent invalidation cases over the past three years is only 10.2%, significantly lower than the industry average of 28% [17]. - Following multiple rounds of legal battles, Xiaomi and Huawei reached a global patent cross-licensing agreement in September 2023, covering various communication technologies, including 5G [15]. Group 4: Implications for Industry - The ongoing patent disputes highlight the need for Chinese companies to collaborate and enhance their competitiveness in the global market [18]. - Datang Mobile's previous licensing agreements with companies like Apple and Lenovo suggest that negotiation may still be a viable path for resolving the current dispute with Xiaomi [18].