US 12,408,084 B2
Wireless communication device using higher physical layer data rate for channel state information transmission and associated wireless communication method
Po-Jung Chiu, Hsinchu (TW); and Shun-Yong Huang, Hsinchu (TW)
Assigned to MEDIATEK INC., Hsinchu (TW)
Filed by MEDIATEK INC., Hsin-Chu (TW)
Filed on Sep. 26, 2022, as Appl. No. 17/952,345.
Claims priority of provisional application 63/252,199, filed on Oct. 5, 2021.
Prior Publication US 2023/0108796 A1, Apr. 6, 2023
Int. Cl. H04W 72/04 (2023.01); H04W 8/24 (2009.01); H04W 28/22 (2009.01)
CPC H04W 28/22 (2013.01) [H04W 8/24 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A wireless communication device comprising:
a channel state information (CSI) estimation circuit, arranged to perform CSI estimation for generating CSI data;
a transmitter (TX) circuit, arranged to transmit a first frame at a first physical layer (PHY) data rate to another wireless communication device, wherein the first frame carries the CSI data, and the first PHY data rate is higher than a second PHY data rate for acknowledgement (ACK) frame transmission;
a receiver (RX) circuit, arranged to receive a second frame from said another wireless communication device;
wherein the wireless communication device generates and transmits the first frame to said another wireless communication device in response to the second frame, and the second frame has at least one PHY preamble reserved bit that is set to trigger the wireless communication device to employ the first PHY data rate for transmitting the first frame.