US 11,877,318 B2
Channel assessment in a single contention-free channel access period
Yuval Matar, Kiryat Mozkin (IL); and Yaron Alpert, Hod Hasharon (IL)
Assigned to Texas Instruments Incorporated, Dallas, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Aug. 24, 2021, as Appl. No. 17/410,916.
Prior Publication US 2023/0062784 A1, Mar. 2, 2023
Int. Cl. H04W 74/06 (2009.01); H04L 5/00 (2006.01); H04W 74/08 (2009.01); H04W 88/08 (2009.01)
CPC H04W 74/06 (2013.01) [H04L 5/0055 (2013.01); H04W 74/0816 (2013.01); H04W 88/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device, comprising:
a memory storing instructions; and
a processor coupled to a Wi-Fi transceiver, the Wi-Fi transceiver configured to communicate via a Wi-Fi channel, the processor configured to execute the instructions stored in the memory to:
obtain a first contention-free access period on the Wi-Fi channel;
set at least one parameter of a Wi-Fi transmitter of the Wi-Fi transceiver to a first setting;
send a first probe packet to a receiving Wi-Fi device during the first contention-free access period using the Wi-Fi transmitter based on the first setting;
wait for a first reply period to determine a result responsive to the first probe packet;
set the at least one parameter of the Wi-Fi transmitter from the first setting to a second setting based on the result of the first reply period;
send a second probe packet to the receiving Wi-Fi device during the first contention-free access period using the Wi-Fi transmitter based on the second setting;
wait for a second reply period to determine a result responsive to the second probe packet; and
set the at least one parameter of the Wi-Fi transmitter to a data packet setting based at least on the result of the second reply period.
 
11. A method comprising: obtaining in a probing Wi-Fi device a first contention-free access period on a Wi-Fi channel;
setting at least one parameter of a Wi-Fi transmitter of the probing Wi-Fi device to a first setting;
sending by the probing Wi-Fi device a first probe packet to a receiving Wi-Fi device during the first contention-free access period using the Wi-Fi transmitter based on the first setting;
waiting for a first reply period to determine a result responsive to the first probe packet; setting the at least one parameter of the Wi-Fi transmitter from the first setting to a second setting;
sending by the probing Wi-Fi device a second probe packet to the receiving Wi-Fi device during the first contention-free access period using the Wi-Fi transmitter based on the second setting;
waiting for a second reply period to determine a result responsive to the second probe packet; and setting the at least one parameter of the Wi-Fi transmitter to a data packet setting based at least on the result of the second reply period.