US 8102833

Here's a concise summary of US Patent 8,102,833:

US Patent 8,102,833

• Title: Method for transmitting uplink signals
• Current Assignee: HPS Investment Partners LLC (Original Assignee: LG Electronics Inc)
• Inventors: Dae Won Lee, Bong Hoe Kim, Young Woo Yun, Ki Jun Kim, Dong Wook Roh, Hak Seong Kim, Hyun Wook Park
• Filing Date: September 11, 2008
• Issue Date: January 24, 2012
• Abstract: The patent discloses a method for transmitting uplink signals, including ACK/NACK signals, other control signals, and data signals. The method involves serially multiplexing the control and data signals, then sequentially mapping these multiplexed signals within a specific 2-dimensional resource region using a time-first mapping method. This resource region comprises multiple symbols and virtual subcarriers. Crucially, the ACK/NACK signals are arranged at symbols located near the symbols used for transmitting a reference signal, overwriting portions of the multiplexed signals. This aims to improve the receiving reliability of high-priority signals.

Plain-Language Overview of Independent Claims:

• Independent Claim 1 (Method for Transmitting Uplink Signals): This claim describes a method performed by a mobile station for sending uplink signals in a wireless communication system. It involves several steps:

  1. Multiplexing: First, "first control signals" (such as PMI or CQI) and data signals are combined sequentially, with the control signals placed at the beginning of the combined stream and the data signals following.
  2. Mapping (Initial): These combined signals are then mapped onto a grid-like structure (a 2-dimensional resource matrix). This grid has columns representing SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols and rows representing subcarriers for each symbol. The number of columns corresponds to the SC-FDMA symbols in a subframe, excluding those reserved for a reference signal. The mapping proceeds in a "time-first" manner, filling each row across all columns before moving to the next row.
  3. Mapping (ACK/NACK): Next, ACK/NACK (Acknowledgement/Negative Acknowledgement) control signals are mapped to specific columns in this grid. These specific columns are immediately adjacent to the SC-FDMA symbols that carry the reference signal. The ACK/NACK signals overwrite some of the previously mapped multiplexed signals, starting from the last row of those specific columns.
  4. Transmitting: Finally, the signals mapped onto this 2-dimensional resource matrix (including the overwritten ACK/NACK signals) are transmitted column by column to a base station.

• Independent Claim 8 (Mobile Station): This claim describes a mobile station (the device itself) configured to perform the method outlined in Claim 1. It comprises a processor that is configured to:

  1. Serially Multiplex: Combine first control signals (like PMI or CQI) and data signals, placing the first control signals at the front of the multiplexed stream.
  2. Map Multiplexed Signals: Map these combined signals to a 2-dimensional resource matrix, where columns are SC-FDMA symbols and rows are subcarriers. The mapping proceeds row-by-row, column-by-column (time-first mapping), avoiding specific SC-FDMA symbols used for a reference signal.
  3. Map ACK/NACK Signals: Map ACK/NACK control signals to specific columns that are immediately adjacent to the reference signal symbols, overwriting existing multiplexed signals from the last row of those specific columns.
     The mobile station is thus equipped to handle the sequential multiplexing, time-first mapping, prioritized ACK/NACK placement via overwriting, and subsequent transmission described in the method claim.

CAFC 2026 Dockets:

As of April 26, 2026, I do not have authoritative information confirming currently scheduled oral arguments or other active docket entries specifically for US8102833 in the CAFC 2026 dockets (May, June, July schedules). While Google Patents indicates that the patent family has been involved in litigation, including cases filed in the Court of Appeals for the Federal Circuit (e.g., case numbers 21-1043, 22-1904, 22-1925), this does not confirm if any of these cases are currently active and scheduled for the remainder of 2026. Access to the detailed contents of the CAFC's "Scheduled Cases" PDFs (May, June, July 2026) would be required for a definitive answer regarding current scheduled activity.