WO2023039614A3 - Methods and apparatus for channel access in unlicensed bands - Google Patents

Methods and apparatus for channel access in unlicensed bands Download PDF

Info

Publication number
WO2023039614A3
WO2023039614A3 PCT/US2022/081952 US2022081952W WO2023039614A3 WO 2023039614 A3 WO2023039614 A3 WO 2023039614A3 US 2022081952 W US2022081952 W US 2022081952W WO 2023039614 A3 WO2023039614 A3 WO 2023039614A3
Authority
WO
WIPO (PCT)
Prior art keywords
lbt
configuration
methods
channel access
unlicensed bands
Prior art date
Application number
PCT/US2022/081952
Other languages
French (fr)
Other versions
WO2023039614A2 (en
Inventor
Narayan Prasad
George Calcev
Original Assignee
Futurewei Technologies, 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
Application filed by Futurewei Technologies, Inc. filed Critical Futurewei Technologies, Inc.
Publication of WO2023039614A2 publication Critical patent/WO2023039614A2/en
Publication of WO2023039614A3 publication Critical patent/WO2023039614A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

According to various embodiments, a method includes a user equipment (UE) receiving a first Listen Before Talk (LBT) configuration from a base station, the first LBT configuration indicating either a LBT mode or a no-LBT mode configured for the UE. The method further includes the UE receiving a second LBT configuration from the base station, the second LBT configuration indicating either the LBT mode or the no-LBT mode configured for the UE. The method further includes the UE applying LBT configuration after receiving the first LBT configuration and the second LBT configuration.
PCT/US2022/081952 2022-01-10 2022-12-19 Methods and apparatus for channel access in unlicensed bands WO2023039614A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202263298078P 2022-01-10 2022-01-10
US63/298,078 2022-01-10

Publications (2)

Publication Number Publication Date
WO2023039614A2 WO2023039614A2 (en) 2023-03-16
WO2023039614A3 true WO2023039614A3 (en) 2023-07-06

Family

ID=85158731

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2022/081952 WO2023039614A2 (en) 2022-01-10 2022-12-19 Methods and apparatus for channel access in unlicensed bands

Country Status (1)

Country Link
WO (1) WO2023039614A2 (en)

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CATT: "Channel access mechanism for up to 71GHz operation", vol. RAN WG1, no. e-Meeting; 20210125 - 20210205, 19 January 2021 (2021-01-19), XP051970978, Retrieved from the Internet <URL:https://ftp.3gpp.org/tsg_ran/WG1_RL1/TSGR1_104-e/Docs/R1-2100375.zip R1-2100375.docx> [retrieved on 20210119] *
CATT: "Channel access mechanism for up to 71GHz operation", vol. RAN WG1, no. e-Meeting; 20210412 - 20210420, 7 April 2021 (2021-04-07), XP052177272, Retrieved from the Internet <URL:https://ftp.3gpp.org/tsg_ran/WG1_RL1/TSGR1_104b-e/Docs/R1-2102626.zip R1-2102626.docx> [retrieved on 20210407] *

Also Published As

Publication number Publication date
WO2023039614A2 (en) 2023-03-16

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