US 11,811,540 B2
Method and apparatus for adjusting contention window size, and data transmission device
Mingju Li, Beijing (CN)
Assigned to Beijing Xiaomi Mobile Software Co., Ltd., Beijing (CN)
Appl. No. 17/277,598
Filed by Beijing Xiaomi Mobile Software Co., Ltd., Beijing (CN)
PCT Filed Sep. 21, 2018, PCT No. PCT/CN2018/107055
§ 371(c)(1), (2) Date Mar. 18, 2021,
PCT Pub. No. WO2020/056743, PCT Pub. Date Mar. 26, 2020.
Prior Publication US 2022/0029754 A1, Jan. 27, 2022
Int. Cl. H04L 1/1867 (2023.01); H04L 1/1812 (2023.01)
CPC H04L 1/1893 (2013.01) [H04L 1/1812 (2013.01); H04L 1/1896 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for adjusting a contention window size (CWS), applicable to a data transmission terminal, comprising:
receiving Hybrid Automatic Repeat reQuest (HARQ) feedback information for first data units and/or second data units from a data reception terminal within a reference duration, the HARQ feedback information comprising acknowledgement (ACK) information or non-acknowledgement (NACK) information, one second data unit comprising one or more first data units;
determining target first data units or target second data units, for which the HARQ feedback information is counted as the NACK information;
calculating a NACK ratio within the reference duration based on the determined target first data units and/or target second data units; and
adjusting the CWS based on the NACK ratio.