Context:
- China’s Transsion, the world’s fourth-largest smartphone supplier, is embroiled in several global, high-profile cellular and video codec standard-essential patent (SEP) lawsuits. The most recent actions it is facing were filed by Ericsson in Brazil, India, Nigeria (first-ever major SEP dispute there), the Unified Patent Court (UPC) (November 14, 2025 ip fray article), Indonesia, Colombia, and – in another landmark move – Morocco (December 19, 2025 ip fray article). It is also facing disputes by InterDigital in the UPC, India, and Brazil over cellular SEPs and video coding patents (October 31, 2025 ip fray article).
- While it is still defending those major cases, Transsion has had some recent successes, settling its disputes against Qualcomm (January 16, 2025 ip fray article) and Philips (July 16, 2025 ip fray article) early last year, and Access Advance licensors NEC, JVC, Sun Patent Trust (July 17, 2025 ip fray article), Huawei (August 4, 2025 ip fray article), and Korea’s Electronics and Telecommunications Research Institute (ETRI) (August 18, 2025 ip fray article) through an HEVC license at the close of 2025 (December 1, 2025 ip fray article). Transsion also signed a patent license agreement with Nokia last January, without litigation (January 30, 2025 ip fray article).
What’s new: Transsion now faces fresh litigation filed by LG Electronics in the Delhi High Court. LG Electronics has alleged that Transsion has infringed five of its wireless communications patents. The suit, filed on November 1, 2025, was first heard by the court on November 4, 2025, and will be heard again soon over pro-tem measures on February 3, 2026 (case number: CS (COMM) 1171/2025).
Direct impact and wider ramifications: Transsion’s docket of global patent infringement litigation by major patentees is growing. Much like Ericsson, LG Electronics is possibly hoping its action in India – a major market for Transsion – will help it reach the same endpoint as other SEP holders, such as Philips and Qualcomm.
The patents-in-suit include:
- Indian Patent No. 296702 (“Method of performing uplink synchronization in wireless communication system”) (EP2627146)
- Indian Patent No. 271483 (“Method of processing data for hybrid automatic repeat request operation in wireless communication system”) (EP2195954)
- Indian Patent No. 266951 (“Method for acquiring resource region information for PHICH and method of receiving PDCCH”) (EP3293905)
- Indian Patent No. 430270 (“Method and equipment for transmitting a random access preamble to a base station”) (EP3471495)
- Indian Patent No. 308868 (“Method for transmitting uplink signals”) (EP3389208)
Counsel
LG Electronics is being represented by a team at Anand & Anand: Pravin Anand, Tusha Malhotra, and Sugandha Yadav.
Meanwhile, Transsion is being represented by a team at Saikrishna & Associates: Saikrishna Rajagopal, Julien George, Anu Paarcha, Victor V. Tandon, and Alka Bisht.