Method and apparatus for NSTR operation with multiple TWT over multiple links

An access point (AP) multi-link device (MHLD), comprising:

• APs comprising transceivers configured to form links with stations (STAs), respectively, the STAs affiliated with a non-AP MLD, wherein:
• first and second links of the links form a non-simultaneous transmit/receive (NSTR) link pair subject to NSTR constraints,
• a first target wake time (TWT) schedule that has a first TWT service period (SP) and an associated first set of traffic identifiers (TIDs) is established on the first link and a second TWT schedule that has a second TWT SP and an associated second set of TIDs is established on the second link, and
• the first and second TWT SPs have an overlapping portion;
• and
• a processor operably coupled to the transceivers, the processor configured to determine, based on characteristics of the first and second sets of TIDs, scheduling for traffic on the first and second links during the overlapping portion of the TWT SPs such that the NSTR constraints are not violated, wherein the TWT SP from a highest-priority TID is prioritized to resolve a conflict with the NSTR constraints during the overlapping portion of the TWT SPs,
• wherein the processor is further configured to determine the scheduling during the overlapping portion of the TWT SPs by scheduling traffic corresponding to an access category (AC) of a highest priority TID among TIDs in the first and second sets of TIDs is scheduled first, followed by traffic corresponding to an AC of a next highest priority TID, such that the scheduling dynamically alternates between the first and second links within the overlapping portion based on a descending priority order of the TIDs in the first and second sets of TIDs,
• wherein at least one of the transceivers is further configured to transmit or receive the traffic to or from the non-AP MLD.