Apple inc. (20240314621). LATENCY REDUCTION USING PREEMPTION WITHIN A PPDU simplified abstract

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LATENCY REDUCTION USING PREEMPTION WITHIN A PPDU

Organization Name

apple inc.

Inventor(s)

Wook Bong Lee of San Jose CA (US)

Anuj Batra of Redwood City CA (US)

Zhou Lan of San Jose CA (US)

Mohamed Abouelseoud of Burlingame CA (US)

Chitlo Chosh of Fremont CA (US)

LATENCY REDUCTION USING PREEMPTION WITHIN A PPDU - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240314621 titled 'LATENCY REDUCTION USING PREEMPTION WITHIN A PPDU

Simplified Explanation

The patent application describes a method and apparatus for reducing latency using preemption in a physical layer protocol data unit.

  • Encodes a multi-user protocol data unit for transmission, containing aggregated media access control PDUs addressed to different stations.
  • Transmits a preemption-indicator signal to a low-latency station and non-low-latency stations when low-latency data is available for transmission.
  • Replaces non-low-latency PDUs with low-latency PDUs in the transmission to prioritize low-latency data.
  • Transmits the updated protocol data unit over the designated resource unit.

Key Features and Innovation

  • Implementation of preemption in a physical layer protocol data unit for latency reduction.
  • Encoding a multi-user protocol data unit for efficient transmission.
  • Prioritizing low-latency data transmission over non-low-latency data.
  • Replacing non-low-latency PDUs with low-latency PDUs to reduce latency.

Potential Applications

  • Wireless communication systems.
  • Internet of Things (IoT) devices.
  • Real-time data transmission applications.
  • High-speed data networks.

Problems Solved

  • Reduction of latency in data transmission.
  • Efficient utilization of resources in wireless networks.
  • Prioritization of low-latency data for real-time applications.

Benefits

  • Improved real-time data transmission.
  • Enhanced network efficiency.
  • Reduced latency for critical applications.
  • Better quality of service for low-latency data.

Commercial Applications

"Latency Reduction Using Preemption within a Physical Layer Protocol Data Unit" can be applied in various industries such as telecommunications, IoT, and data centers to optimize data transmission and improve network performance.

Questions about Latency Reduction Using Preemption within a Physical Layer Protocol Data Unit

How does this technology improve network efficiency?

This technology improves network efficiency by prioritizing low-latency data transmission and reducing overall latency in data communication.

What are the potential applications of this technology in real-time data transmission?

This technology can be applied in real-time data transmission applications such as video streaming, online gaming, and teleconferencing to ensure timely delivery of data packets.


Original Abstract Submitted

disclosed herein are apparatuses and a method for implementing latency reduction using preemption within a physical layer (phy) protocol data unit (pdu) (ppdu). an embodiment operates by encoding a multi-user ppdu (mu-ppdu) for transmission, where, the mu-ppdu comprises a plurality of aggregated media access control (mac) pdus (a-mpdus) addressed to respective non-low-latency stations (non-ll-stas). based on a determination that low-latency data addressed to a low-latency station (ll-sta) is available for transmission at a mac layer of the ap, the embodiment then transmits a preemption-indicator signal to the ll-sta and at least one non-ll-sta. further, the embodiment identifies an a-mpdu of the plurality of a-mpdus that is scheduled for transmission over a resource unit (ru) designated for transmitting low-latency data. the embodiment then replaces at least one non-low-latency mpdus (non-ll-mpdus) associated with the a-mpdu with at least one low-latency mpdus (ll-mpdus) addressed to the ll-sta to generate an updated a-mpdu., where a first ll-mpdu of the plurality of ll-mpdus is a multi-user block acknowledgment request (mu-bar) frame associated with the ll-mpdus. finally, the embodiment transmits the updated a-mpdu consisting the at least one ll-mpdus over the ru.