US Patent Application 18296293. METHOD AND APPARATUS FOR CONTENTION WINDOW ADJUSTMENT ON SIDELINK simplified abstract
Contents
METHOD AND APPARATUS FOR CONTENTION WINDOW ADJUSTMENT ON SIDELINK
Organization Name
Inventor(s)
Emad N. Farag of Flanders NJ (US)
Carmela Cozzo of San Diego CA (US)
Kyeongin Jeong of Allen TX (US)
METHOD AND APPARATUS FOR CONTENTION WINDOW ADJUSTMENT ON SIDELINK - A simplified explanation of the abstract
- This abstract for appeared for US patent application number 18296293 Titled 'METHOD AND APPARATUS FOR CONTENTION WINDOW ADJUSTMENT ON SIDELINK'
Simplified Explanation
This abstract describes methods and devices for adjusting the contention window (CW) on a sidelink (SL) in a wireless communication system. The method involves a user equipment (UE) determining if hybrid automatic repeat request (HARQ) feedback is available after the last update of the CW size. If HARQ feedback is available, the UE determines a set of HARQ feedback corresponding to physical sidelink shared channels (PSSCHs) during a reference duration. Based on this set of HARQ feedback, the UE determines a first condition. If the first condition is satisfied, the CW is reset to the minimum allowed value. If the first condition is not satisfied, the CW is increased to the next higher allowed value. The method also 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.
Original Abstract Submitted
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.
