InterDigital. has filed a patent for managing multicast communication in wireless transmit/receive units (WTRUs) within a multicast group. The method involves receiving a configuration for NACK response, monitoring data reception, and sending a RACH preamble if data is not successfully received. GlobalData’s report on InterDigital 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 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.
Managing multicast communication in wireless networks
The patent application (Publication Number: US20240039675A1) describes a method and system implemented by a wireless transmit/receive unit (WTRU) for handling multicast transmissions. The method involves receiving downlink control information (DCI) and determining if the DCI or a message in a data channel indicates the activation of a multicast transmission of a specific type. Upon detecting the activation, the WTRU sends a connection or resume request and receives the multicast transmission. The method also includes receiving configuration information related to the timing or scheduling of the multicast transmission and sending a Non-Access Stratum (NAS) message to indicate interest in the multicast transmission.
Furthermore, the WTRU includes a transmit/receive unit and a processor to carry out the method. The transmit/receive unit receives the DCI and determines the activation of the multicast transmission, while the processor handles the connection or resume request. The WTRU is designed to receive configuration information via Radio Resource Control (RRC) signaling and can establish a connection to the network to receive the multicast transmission. Additionally, the WTRU can receive updated system information blocks based on indications in the DCI. Overall, the patent application outlines a method and system for efficiently managing multicast transmissions in a wireless communication network using a WTRU.
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