WLAN MAC Reserved Epochs for Low-Latency Traffic Protection

The patent segments the service set into Basic Service Sets (BSS) and extends the reserved period protection mechanism to work across multiple BSS boundaries. By dividing the network into manageable BSS units and implementing coordinated protection at each BSS level, the system achieves reliable high-priority traffic handling in enterprise deployments with multiple access points.

The patent implements preliminary action by establishing reserved periods in advance for high-priority traffic before lower-priority traffic can access the channel. The High Priority Epoch frame preemptively reserves channel access rights, and the Low Priority Network Allocation Vector field pre-defers lower-priority traffic, ensuring that high-priority traffic always has protected access windows regardless of competing traffic loads.

The patent achieves universality by making the High Priority Epoch frame and Low Priority Network Allocation Vector mechanism applicable across multiple BSS scenarios and enterprise deployments. The same frame structure and protection mechanism work whether there are two access points or twenty, whether BSS overlap is minimal or extensive, providing a universal solution rather than requiring scenario-specific implementations.

The patent introduces the High Priority Epoch frame as an intermediary control element that mediates between high-priority and low-priority traffic. This single intermediary frame carries the Low Priority Network Allocation Vector field, which acts as a mediator to defer low-priority traffic without requiring complex coordination protocols or multiple control frames, thus adding minimal complexity while achieving effective protection.