Title:
METHOD AND APPARATUS FOR CONTENTION WINDOW ADJUSTMENT ON SIDELINK IN A WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/200299
Kind Code:
A1
Abstract:
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Methods and apparatuses for contention window adjustment on a sidelink (SL) in a wireless communication system. A method of a user equipment (UE) includes determining whether hybrid automatic repeat request (HARQ) feedback is available after a last update of a contention window size (CW); determining a set of HARQ feedback corresponding to physical sidelink shared channels (PSSCHs) in a reference duration when the at least one HARQ feedback is determined as available; and determining a first condition based on the set of HARQ feedback. The method further includes determining to: reset the CW to a minimum allowed value when the first condition is satisfied or increase the CW to a next higher allowed value when the first condition is not. The method further includes performing a SL channel access procedure based on the CW and performing a SL transmission over a channel after successfully performing the SL channel access procedure.
More Like This:
Inventors:
SI HONGBO (US)
FARAG EMAD N (US)
COZZO CARMELA (US)
LENG SHIYANG (US)
JEONG KYEONGIN (US)
FARAG EMAD N (US)
COZZO CARMELA (US)
LENG SHIYANG (US)
JEONG KYEONGIN (US)
Application Number:
PCT/KR2023/005096
Publication Date:
October 19, 2023
Filing Date:
April 14, 2023
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H04W74/08; H04L1/18; H04W72/12; H04W92/18
Domestic Patent References:
| WO2021214709A1 | 2021-10-28 |
Foreign References:
| US20220060999A1 | 2022-02-24 | |||
| US20210037567A1 | 2021-02-04 | |||
| US20220116995A1 | 2022-04-14 | |||
| US20170280445A1 | 2017-09-28 |
Attorney, Agent or Firm:
KWON, Hyuk-Rok et al. (KR)
Download PDF: