Nippon Telegraph and Telephone has been granted a patent for a terminal that includes a receiver for reference signals and a processor that measures Reference Signal Received Power (RSRP). The processor adjusts handover thresholds and reporting values based on subcarrier spacing, enhancing channel state acquisition. GlobalData’s report on Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone, Cloud gaming was a key innovation area identified from patents. Nippon Telegraph and Telephone's grant share as of July 2024 was 42%. Grant share is based on the ratio of number of grants to total number of patents.
Terminal for measuring rsrp with adjustable subcarrier spacing
The granted patent US12074656B2 outlines a terminal and a measurement method designed to enhance the accuracy of channel state acquisition through the use of Reference Signal Received Power (RSRP). The terminal includes a receiver that captures a reference signal, which is essential for assessing the channel state. A processor within the terminal performs measurements related to RSRP, taking into account both the received reference signal and the subcarrier spacing applied to it. The processor calculates the RSRP and determines handover conditions using a corrected threshold. This threshold is derived by multiplying a reference threshold by a coefficient that is inversely proportional to the subcarrier spacing, ensuring that the handover process is optimized based on varying signal conditions.
In addition to the terminal's capabilities, the patent also describes a method for executing these measurements. The method involves receiving a reference signal and performing RSRP measurements based on the signal's reception and the associated subcarrier spacing. The process includes calculating the RSRP and determining handover thresholds similarly to the terminal's operation. Furthermore, the method specifies that a value to be reported to a base station is determined by adding an offset to the measured RSRP, with the offset varying according to different subcarrier spacings. This approach aims to improve the reliability and efficiency of communication systems by adapting to the specific characteristics of the received signals.
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