Xiaomi has been granted a patent for a method involving receiving downlink control information (DCI) in unlicensed spectrum. The method includes configuring sub-bands within a target bandwidth part (BWP) and monitoring DCI after detecting a target sequence. This innovation enhances efficient communication in wireless networks. GlobalData’s report on Xiaomi gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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 April 2024 was 41%. Grant share is based on the ratio of number of grants to total number of patents.

Method for receiving dci in unlicensed spectrum using bwp

Source: United States Patent and Trademark Office (USPTO). Credit: Xiaomi Corp

A recently granted patent (Publication Number: US11974292B2) discloses a method for receiving downlink control information (DCI) by a terminal in an unlicensed spectrum. The method involves receiving bandwidth part (BWP) configuration information from an access network device, determining sub-bands of the target BWP, monitoring a target sequence on the sub-bands to identify successful Listen Before Talk (LBT) or DCI transmission, and monitoring DCI on the sub-bands after detecting the target sequence. The patent also includes methods for transmitting DCI by an access network device, determining target sub-bands based on LBT results, and transmitting DCI to the terminal on the sub-bands.

Furthermore, the patent covers the configuration of a target BWP in an unlicensed spectrum with multiple sub-bands, the use of LBT to identify transmission opportunities, and the transmission of DCI to terminals based on the determined sub-bands. The patent also includes claims related to the consecutive arrangement of sub-bands in the frequency domain, the transmission of control resource sets, and the implementation of the methods by access network devices and terminals. Overall, the patent aims to optimize the reception and transmission of DCI in unlicensed spectrum environments, enhancing the efficiency and reliability of wireless communication systems.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

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.