NEC had 11 patents in space economy during Q1 2024. NEC Corp filed a patent for a communication system that allows a user equipment to switch communication connections between cells in a Non-Terrestrial Network. Another patent describes a method for secure chain division of a satellite chain in a permission-based blockchain system by splitting validator nodes into subsets for child chains and updating identity information in a registry. GlobalData’s report on NEC gives a 360-degree view of the company including its patenting strategy. Buy the report here.

NEC had no grants in space economy as a theme in Q1 2024.

Recent Patents

Application: Communication system (Patent ID: US20240064586A1)

The patent filed by NEC Corp. describes a communication system where a user equipment (UE) communicates through a Non-Terrestrial Network (NTN) consisting of multiple cells. The UE receives information from a base station/NTN gateway about switching the communication connection from one cell to another within the NTN. Based on this information, the UE suspends the connection in the first cell while maintaining the Radio Resource Control (RRC) configuration associated with it. The UE then switches to the second cell, monitors for a trigger to perform a random access procedure via the second cell for synchronization, and upon receiving the trigger, resumes the communication connection in the second cell using the RRC configuration associated with the first cell.

The method outlined in the patent involves specific steps for the UE to follow when switching cells within the NTN, including receiving information for the switch, suspending the connection in the first cell, performing the cell switch without RRC reconfiguration, receiving a trigger for a random access procedure in the second cell, and resuming the connection using the RRC configuration from the first cell. The patent also details the type of information that can be included in the messages for switching cells, such as RRC messages, handover commands, and system information, as well as the triggers for initiating procedures in the second cell, like PDCCH orders and MAC Control Elements. Additionally, the patent covers methods for controlling the second cell and relocating UE context between network nodes during the switching process.

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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.