Abstract

A system is proposed herein through which a set of techniques can be utilized to create a coordinated, latency-aware allocation policy for Dynamic Sub-band Operation (DSO).  DSO can be used to create multiple parallel contention domains.  For example, an access point (AP) can use fine-grained per-sub-band measurements, including overlapping basic service set (OBSS) frame ratio, jitter variance, airtime fairness, clear channel assessment (CCA), and retry metrics, to compute a condition score per sub-band. The AP can also use neighbor coordination pressure to prevent overlapping basic service sets (BSSs) from converging on the same sub-band and apply traffic-class-aware admission limits with stability rules to avoid oscillation. The system can be integrated with Institute of Electrical and Electronics Engineers (IEEE) 802.11bn multi-access point coordination (MAPC) features by feeding active coordinated spatial reuse (Co-SR) and coordinated orthogonal frequency-division multiple access (Co-OFDMA) state into sub-band condition scores. The system can also jointly manage DSO and non-primary channel access (NPCA) per station (STA), can support predictive sub-band assignment using traffic trend forecasting, can provide mobility-aware initial placement during roaming, and can offer an on-AP learned inference alternative using a lightweight reinforcement learning agent.

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Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.

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