Xiaomi has been granted a patent for a method and apparatus that enhances transmission time advance (TA) settings. The invention streamlines the random access process, reduces client power consumption, and optimizes resource usage by enabling clients to request new TA configurations from base stations efficiently. GlobalData’s report on Xiaomi gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Xiaomi, Gesture-based recognition systems was a key innovation area identified from patents. Xiaomi's grant share as of June 2024 was 41%. Grant share is based on the ratio of number of grants to total number of patents.
Method for setting transmission time advance in wireless communication
The granted patent US12048015B2 outlines a method and device for setting a timing advance (TA) in communication systems, specifically focusing on interactions between a client and a base station. The method involves the client detecting its current TA within a specified time unit and determining if it has expired. If the TA has expired, the client sends a random access signal to the base station using a designated resource, prompting the base station to reconfigure a new TA. The client then receives this new TA and utilizes it to send target data back to the base station, ensuring efficient data reporting.
Additionally, the patent details the conditions under which the resources are allocated and the signaling processes involved. The first target resource must precede the second target resource in time, and the method includes provisions for using pre-allocated random access preambles. The base station, upon receiving the random access signal, is responsible for detecting it and subsequently returning the new TA to the client. The communication is facilitated through physical downlink shared channels (PDSCH), which carry the necessary information, including the new TA and associated identifiers. The patent emphasizes the importance of maintaining distinct radio network temporary identities (RNTIs) for different signaling processes to ensure accurate communication between the client and the base station.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
