XIAOMI(HK:01810) Guan Cha Zhe Wang·2025-06-13 11:22Core Viewpoint - China’s Datang Mobile has initiated three lawsuits against Xiaomi in Germany regarding 4G-related patents, which are crucial for both 4G and 5G technologies [1][2]. Group 1: Patent Lawsuits - The lawsuits involve three LTE/4G patents: EP2237607 (method and device for handover), EP3713313 (uplink power control method and mobile communication terminal), and EP2315369 (adaptive modulation and coding method and device) [1]. - Datang Mobile previously won a lawsuit against Samsung in Germany concerning the EP2237607 patent, which is essential for seamless connectivity in 4G technology [2]. Group 2: Context and Implications - The timing of the lawsuit coincides with Xiaomi's release of its self-developed 4G watch chip, but the lawsuit is likely related to Xiaomi's smartphone and communication products rather than the new chip [2]. - Datang Mobile has successfully negotiated patent licenses with several global smartphone manufacturers, including Apple and Lenovo, without resorting to litigation [3]. - The legal landscape in Germany is noted for its leniency in granting injunctions for patent infringement, which could lead to significant consequences for Xiaomi if the court rules against them [3].