US 12,446,072 B2
Multi-RU multi-AP transmissions in WLAN systems
Xiaofei Wang, North Caldwell, NJ (US); Hanqing Lou, Syosset, NY (US); Li Hsiang Sun, San Diego, CA (US); and Rui Yang, Greenlawn, NY (US)
Assigned to InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Appl. No. 17/911,722
Filed by INTERDIGITAL PATENT HOLDINGS, INC., Wilmington, DE (US)
PCT Filed Mar. 16, 2021, PCT No. PCT/US2021/022515
§ 371(c)(1), (2) Date Sep. 15, 2022,
PCT Pub. No. WO2021/188507, PCT Pub. Date Sep. 23, 2021.
Claims priority of provisional application 62/990,261, filed on Mar. 16, 2020.
Prior Publication US 2023/0362994 A1, Nov. 9, 2023
Int. Cl. H04W 74/0816 (2024.01); H04W 84/12 (2009.01)
CPC H04W 74/0816 (2013.01) [H04W 84/12 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An access point (AP) for use in a multi-AP wireless local area network (WLAN), the AP comprising:
a transmitter configured to transmit, using a set of resource units (RUs), a multi-AP ready-to-send (RTS) frame to at least one other AP and a plurality of stations (STAs);
the transmitter configured to transmit an aggregated frame using a portion of the set of RUs, wherein the aggregated frame comprises a multi-AP clear-to-send (CTS) frame and a multi-user (MU) RTS frame;
a receiver configured to receive, using the portion of the set of RUs, a clear-to-send (CTS) frame from at least one STA of the plurality of STAs, wherein the CTS frame is responsive to the aggregated frame; and
the transmitter configured to transmit, using the portion of the set of RUs, a data frame to the at least one STA.