18763735. Low Latency Data Preemption (Apple Inc.)

Low Latency Data Preemption

Organization Name

Apple Inc.

Inventor(s)

Zhou Lan of San Jose CA (US)

Chittabrata Ghosh of Fremont CA (US)

Anuj Batra of Redwood City CA (US)

Wook Bong Lee of San Jose CA (US)

Mohamed Abouelseoud of Burlingame CA (US)

Morteza Mehrnoush of Hayward CA (US)

Low Latency Data Preemption

This abstract first appeared for US patent application 18763735 titled 'Low Latency Data Preemption

Original Abstract Submitted

Systems, methods, and mechanisms for preemption of non-low latency data within an aggregated medium access control (MAC) protocol data unit (AMPDU), e.g., such as in current and future IEEE 802.11 systems. A wireless device (e.g., an access point or wireless station) may transmit, during an AMPDU, a trigger to receive (TRX) frame. The TRX frame may indicate preemption of non-low latency data intended for a first wireless station with low latency data intended for a second wireless station, e.g., via an acknowledgement policy change. Additionally, the wireless device may be configured to transmit, to the second wireless station, the low latency data within the AMPDU. Further, the wireless device may be configured to receive, after the AMPDU transmission is complete, a multi-block acknowledgement (M-BA) frame from the second wireless station. The M-BA frame and completion of the AMPDU transmission are separated by a short inter-frame space (SIFS).