InterDigital‘s patent involves systems, devices, and methods for determining clear channel assessment occasions in wireless transmit/receive units (WTRUs). The technology allows for efficient UL transmissions by assessing channel availability before sending data. This innovation enhances wireless communication reliability and performance. GlobalData’s report on InterDigital gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on InterDigital, Cloud gaming was a key innovation area identified from patents. InterDigital's grant share as of January 2024 was 46%. Grant share is based on the ratio of number of grants to total number of patents.

Dynamic determination of clear channel assessment occasions for ul transmission

Source: United States Patent and Trademark Office (USPTO). Credit: InterDigital Inc

A recently granted patent (Publication Number: US11889528B2) discloses a wireless transmit/receive unit (WTRU) equipped with a transceiver and a processor to facilitate efficient communication. The WTRU is designed to receive downlink control information (DCI) containing details such as an uplink (UL) grant for UL transmission and parameters related to a channel assessment occasion. The processor then determines the start time for UL transmission and the channel assessment occasion based on the received information, conducts channel assessments during the designated time, and sends the UL transmission if the channel is deemed available. The patent emphasizes the importance of optimizing channel usage and transmission timing for enhanced wireless communication.

Furthermore, the patent includes various claims related to the configuration and operation of the WTRU, such as the utilization of unlicensed channels, decoding group DCI with Radio Network Temporary Identifier (RNTI), and receiving DCI from network entities like evolved NodeBs (eNBs) or cells. The method outlined in the patent involves receiving DCI, determining transmission and assessment timings, conducting channel assessments, and transmitting data based on channel availability. By incorporating these features, the WTRU aims to streamline the communication process and improve overall network efficiency. This patent underscores the significance of intelligent scheduling and channel assessment in optimizing wireless transmission performance, especially in scenarios where multiple parameters and time slots need to be considered for effective communication.

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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.