Invalidity dossier

US 10911186

Wireless communication terminal and wireless communication method for multi-user concurrent transmission

Current assignee: Unified Patents

Added 5/14/2026, 6:01:38 AM

Active provider: Google · gemini-2.5-flash

Patent summary

Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.

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Here's a concise summary of US patent 10911186:

US Patent 10911186

  • Title: Wireless communication terminal and wireless communication method for multi-user concurrent transmission
  • Assignee: Wilus Institute of Standards and Technology Inc. [cite: Original Assignee, Current Assignee] (Note: The Google Patents page lists "SK Telecom Co Ltd" as Original Assignee and "Wilus Institute of Standards and Technology Inc" as Current Assignee, with a reassignment dated 2024-06-20.)
  • Inventors: Woojin AHN, Yongho Kim, Jinsam Kwak, Juhyung Son [cite: Inventor]
  • Filing Date: 2019-04-08 [cite: Filing date]
  • Issue Date: 2021-02-02 [cite: Publication date, Application granted]
  • Abstract: The patent describes a wireless communication terminal and method for efficiently managing simultaneous data transmissions from multiple terminals. It features a base wireless communication terminal (e.g., an Access Point) that transmits a trigger frame to initiate multi-user uplink transmission. It then receives multi-user uplink data from several terminals through allocated resources and, in response, transmits a block ACK through the same resources, ensuring that the transmission of the block ACK in each resource terminates simultaneously. [cite: Abstract]

Plain-Language Overview of Independent Claims:

  • Independent Claim 1 (Base Wireless Communication Terminal): This claim describes a base wireless communication terminal (like an Access Point) that has a transceiver for wireless communication and a processor to control its operations. The processor is configured to:

    1. Send a "trigger frame" to start multiple terminals transmitting data simultaneously to the base terminal (multi-user uplink transmission).
    2. Receive this multi-user uplink data through specific communication "resources" (like channels or sub-channels) that were assigned to the different terminals.
    3. Send a "block ACK" (acknowledgment) back through those same resources, in response to the received data. A key feature is that the transmission of this block ACK must end at the exact same time across all the resources used.
  • Independent Claim 10 (Wireless Communication Method): This claim describes a method for a base wireless communication terminal (like an Access Point) to manage multi-user uplink transmissions. The method involves:

    1. Transmitting a "trigger frame" to initiate a multi-user uplink transmission from several terminals.
    2. Receiving multi-user uplink data from these terminals via allocated resources.
    3. Transmitting a "block ACK" through the same resources in response to the received data. Similar to the terminal claim, the transmission of the block ACK in each resource must be terminated at the same time.

CAFC 2026 Dockets for 10911186:
I am unable to definitively confirm if US patent 10911186 is involved in any CAFC 2026 dockets. While the CAFC website lists "Scheduled Cases" for April, May, and June 2026 in PDF format, I do not have the capability to directly access and search these external PDF documents. However, the provided patent text mentions a "PTAB case IPR2025-01111 filed (Pending - Instituted)" and "US case filed in Texas Eastern District Court" (case 2:25-cv-00070 and 2:25-cv-00069) related to this patent. These are not CAFC dockets, but indicate ongoing litigation. [cite: PTAB case IPR2025-01111 filed (Pending - Instituted), US case filed in Texas Eastern District Court]

Generated 5/17/2026, 6:47:11 AM