KDDI had 16 patents in mobile during Q2 2024. The patents filed by KDDI Corp in Q2 2024 focus on improving communication systems through control devices, terminal apparatuses, relay devices, and relay apparatuses. These inventions aim to enhance signal transmission, power control, and relay processes between base stations, terminal devices, and relay devices in wireless communication networks. The innovations include methods for identifying measurement target radio signals, performing measurements in different frequency bands, relaying signals using specific sequences, and optimizing signal transmission directions based on timing cues. GlobalData’s report on KDDI gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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KDDI had no grants in mobile as a theme in Q2 2024.
Recent Patents
Application: Control device for transmission power control in cell-free massive mimo system composed of many antennas, terminal device, control method, and computer-readable storage medium (Patent ID: US20240214944A1)
The patent filed by KDDI Corp. describes a control device and method in a radio communication system that provides a communication service to a terminal device via multiple antennas. The control device notifies the terminal device of information to identify specific radio signals for transmission power control. This information includes details about the antennas used, the number of antennas, reference values for radio quality, and indices for radio quality measurement.
The terminal device, in turn, receives this information from the control device and identifies the measurement target radio signals for transmission power control based on radio quality measurements. The terminal device measures the radio quality of the identified signals, controls transmission power accordingly, and uses indices such as total received power, average received power, lowest received power, highest received power, or median value for radio quality assessment. The system aims to optimize transmission power control based on specific radio signals transmitted from the antennas specified in the information provided by the control device.
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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.
