Optimizing transmission opportunity (txop) usage in coordinated-time division multiple access (c-tdma) transmission for enhanced system throughput

A method performed by a wireless device operating as a shared access point in a first basic service set, the method comprising:

• receiving a control frame wirelessly transmitted by a sharing access point in a second basic service set that overlaps the first basic service set, the control frame wirelessly transmitted by the sharing access point to facilitate allocation of a transmission opportunity held by the sharing access point to the shared access point;
• (a) wirelessly transmitting a physical layer protocol data unit (PPDU) during the transmission opportunity, or (b) soliciting a wireless transmission of a physical layer protocol data unit (PPDU) from a station in the first basic service set during the transmission opportunity;
• generating a return transmission opportunity frame to facilitate return of a remaining portion of the transmission opportunity to the sharing access point;
• and
• wirelessly transmitting the return transmission opportunity frame to return the remaining portion of the transmission opportunity to the sharing access point.

A wireless device capable of functioning as a sharing access point in a first basic service, the wireless device comprising:

• a radio frequency transceiver;
• a memory device;
• a set of one or more processors coupled to the memory device;
• and
• a set of instructions stored in the memory and configured to cause the sharing access point to perform:
• generating a control frame to facilitate allocation of a transmission opportunity held by the sharing access point to a shared access point, the shared access point in a second basic service set that overlaps the first basic service set;
• wirelessly transmitting the control frame to facilitate allocation of the transmission opportunity held by the sharing access point to the shared access point;
• wirelessly receiving a return transmission opportunity frame, wirelessly transmitted by the shared access point, facilitating return of a remaining portion of the transmission opportunity to the sharing access point;
• and
• (b) resuming, during the remaining portion of the transmission opportunity returned to the sharing access point, wireless transmission of data buffered at the sharing access point, or (b) facilitating allocation of a portion of the remaining portion of the transmission opportunity to an alternative access point.

A wireless device capable of functioning as a shared access point in a first basic service, the wireless device comprising:

• a radio frequency transceiver;
• a memory device;
• a set of one or more processors coupled to the memory device;
• and
• a set of instructions stored in the memory and configured to cause the shared access point to perform:
• receiving a control frame wirelessly transmitted by a sharing access point in a second basic service set that overlaps the first basic service set, the control frame wirelessly transmitted by the sharing access point to facilitate allocation of a transmission opportunity held by the sharing access point to the shared access point;
• (a) wirelessly transmitting a physical layer protocol data unit (PPDU) during the transmission opportunity, or (b) soliciting a wireless transmission of a physical layer protocol data unit (PPDU) from a station in the first basic service set during the transmission opportunity;
• generating a return transmission opportunity frame to facilitate return of a remaining portion of the transmission opportunity to the sharing access point;
• and
• wirelessly transmitting the return transmission opportunity frame to return the remaining portion of the transmission opportunity to the sharing access point.