Method of triggering coordinated spatial reuse or coordinated beamforming in wi-fi communications

A method of communicating using multi-access point coordination (MAPC) comprising, at a first access point (AP):

• transmitting, to a second AP, a trigger frame containing coordinated beamforming (Co-BF) scheduling information for synchronized transmission of a Co-BF downlink (DL) physical layer protocol data unit (PPDU) to a plurality of wireless stations;
• transmitting, to the plurality of wireless stations by a first set of spatial streams, a first portion of the Co-BF DL PPDU in synchronization with transmission of a second portion of the Co-BF DL PPDU from the second AP to the plurality of wireless stations by a second set of spatial streams, the Co-BF DL PPDU having a header including:
• an indication of a count of the plurality of wireless stations,
• and
• a spatial configuration code indicating, in combination with the count of the plurality of wireless stations, a respective number of spatial streams allocated, from among the first set of spatial streams and the second set of spatial streams, to each wireless station of the plurality of wireless stations;
• and
• receiving one or more block acknowledgement (BA) frames transmitted from the plurality of wireless stations.

A method of communicating using multi-access point coordination (MAPC) comprising, at a first access point (AP):

• transmitting, to a second AP, a trigger frame containing coordinated beamforming (Co-BF) scheduling information for synchronized transmission of a Co-BF downlink (DL) physical layer protocol data unit (PPDU) to a plurality of wireless stations, a first portion of the plurality of wireless stations being associated with the first AP and a second portion of the plurality of wireless stations being associated with the second AP;
• transmitting, to the plurality of wireless stations by a first set of spatial streams, a first portion of the Co-BF DL PPDU in synchronization with transmission of a second portion of the Co-BF DL PPDU from the second AP to the plurality of wireless stations by a second set of spatial streams, the Co-BF DL PPDU having a header including:
• an ordered list of wireless stations ordering the plurality of wireless stations, the first portion of the plurality of wireless stations and the second portion of the plurality of wireless stations being grouped consecutively in the ordered list of wireless stations, each of the first portion of the plurality of wireless stations and the second portion of the plurality of wireless stations being ordered in the ordered list of wireless stations to descend according to the respective number of spatial streams allocated to each wireless station, the respective number of spatial streams allocated to a leading wireless station in the ordered list of wireless stations being greater than or equal to the respective number of spatial streams allocated for each other wireless station in the ordered list of wireless stations, the leading wireless station belonging to either the first portion of the plurality of wireless stations or the second portion of the plurality of wireless stations;
• and
• receiving one or more block acknowledgement (BA) frames transmitted from the plurality of wireless stations.