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PH12022550881A1 - Techniques for determining contention window update - Google Patents

Techniques for determining contention window update

Info

Publication number
PH12022550881A1
PH12022550881A1 PH1/2022/550881A PH12022550881A PH12022550881A1 PH 12022550881 A1 PH12022550881 A1 PH 12022550881A1 PH 12022550881 A PH12022550881 A PH 12022550881A PH 12022550881 A1 PH12022550881 A1 PH 12022550881A1
Authority
PH
Philippines
Prior art keywords
contention window
pdsch
reference duration
techniques
window update
Prior art date
Application number
PH1/2022/550881A
Inventor
Kapil Bhattad
Pravjyot S Deogun
Jing Sun
Xiaoxia Zhang
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US16/903,226 external-priority patent/US11778661B2/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of PH12022550881A1 publication Critical patent/PH12022550881A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1887—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/27—Evaluation or update of window size, e.g. using information derived from acknowledged [ACK] packets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

Techniques for defining a reference duration and one or more reference transmissions that are utilized for contention window update are provided to address these new features. An apparatus, such as a wireless device, determines a reference duration of a channel occupancy time (COT), the reference duration based at least in part on a subcarrier spacing (SCS) and based on reception of a physical downlink shared channel (PDSCH) transmission. The apparatus updates a contention window (CW) based at least in part on reception of the PDSCH transmission during the reference duration. For example, the apparatus may increase the CW when a negative acknowledgement (NACK) is received for the determined PDSCH in the COT and may assign CW with a predetermined minimum value (CW_min) when a positive acknowledgement (ACK) is received for the determined PDSCH.
PH1/2022/550881A 2019-08-01 2020-06-17 Techniques for determining contention window update PH12022550881A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IN201941031137 2019-08-01
US16/903,226 US11778661B2 (en) 2019-08-01 2020-06-16 Techniques for determining contention window update
PCT/US2020/038220 WO2021021335A1 (en) 2019-08-01 2020-06-17 Techniques for updating contention window size

Publications (1)

Publication Number Publication Date
PH12022550881A1 true PH12022550881A1 (en) 2024-03-04

Family

ID=71527935

Family Applications (1)

Application Number Title Priority Date Filing Date
PH1/2022/550881A PH12022550881A1 (en) 2019-08-01 2020-06-17 Techniques for determining contention window update

Country Status (7)

Country Link
EP (1) EP4008075A1 (en)
JP (1) JP7614173B2 (en)
KR (1) KR20220038355A (en)
CN (1) CN114208093A (en)
BR (1) BR112022001047A2 (en)
PH (1) PH12022550881A1 (en)
WO (1) WO2021021335A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230336280A1 (en) * 2022-04-15 2023-10-19 Samsung Electronics Co., Ltd. Method and apparatus for contention window adjustment on sidelink

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113472490B (en) * 2015-05-12 2023-07-28 Lg 电子株式会社 Method and apparatus for adjusting contention window size in wireless access system
WO2019022519A1 (en) * 2017-07-25 2019-01-31 Samsung Electronics Co., Ltd. Apparatus and method for ss block time locations and ss burst set composition for nr unlicensed spectrum
EP3952565B1 (en) 2019-03-29 2024-08-21 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method for determining contention window size (cws), base station performing the same and related product

Also Published As

Publication number Publication date
WO2021021335A1 (en) 2021-02-04
JP7614173B2 (en) 2025-01-15
CN114208093A (en) 2022-03-18
EP4008075A1 (en) 2022-06-08
KR20220038355A (en) 2022-03-28
BR112022001047A2 (en) 2022-03-15
JP2022542511A (en) 2022-10-04

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