Method for performing preemption management in wireless communication system, and associated apparatus

An access point (AP) device, for performing preemption management in a wireless communication system, the AP device comprising:

• a processing circuit, arranged to control operations of the AP device;
• and
• at least one communication control circuit, coupled to the processing circuit, arranged to perform communication control, wherein the at least one communication control circuit is arranged to perform wireless communication operations with at least one other device within the wireless communication system for the AP device, wherein a non-access-point station (non-AP STA) device among the at least one other device is wirelessly linking to the AP device;
• wherein:
• the AP device is arranged to perform a preemption client indication in at least one transmission behavior at beginning of a transmission period, for indicating that the non-AP STA device is a preemption client which should keep awake in a preemption period within the transmission period;
• and
• the preemption period is reserved for latency sensitive traffic transmission to the non-AP STA device.

A non-access-point station (non-AP STA) device, for performing preemption management in a wireless communication system, the non-AP STA device comprising:

• a processing circuit, arranged to control operations of the non-AP STA device;
• and
• at least one communication control circuit, coupled to the processing circuit, arranged to perform communication control, wherein the at least one communication control circuit is arranged to perform wireless communication operations with at least one other device within the wireless communication system for the non-AP STA device, wherein the non-AP STA device is wirelessly linking to a first access point (AP) device among the at least one other device;
• wherein:
• the non-AP STA device is arranged to receive a preemption client indication in at least one transmission behavior at beginning of a transmission period, for indicating that the non-AP STA device is a preemption client which should keep awake in a preemption period within the transmission period, wherein the preemption period is reserved for latency sensitive traffic transmission to the non-AP STA device;
• and
• in response to receiving the preemption client indication, the non-AP STA device is arranged to keep awake in the preemption period and be prepared for any downlink (DL) traffic or any uplink (UL) trigger.