Title:
RADIO BASE STATION AND TERMINAL
Document Type and Number:
WIPO Patent Application WO/2022/079879
Kind Code:
A1
Abstract:
A channel access procedure is executed in a second frequency band different from a first frequency band. A radio base station executes the channel access procedure by use of a single directional reception beam and transmits a single synchronization signal block during a channel occupation time after the channel access procedure.
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Inventors:
HARADA HIROKI (JP)
KUMAGAI SHINYA (JP)
SHIBAIKE NAOYA (JP)
OKANO MAYUKO (JP)
KUMAGAI SHINYA (JP)
SHIBAIKE NAOYA (JP)
OKANO MAYUKO (JP)
Application Number:
PCT/JP2020/039002
Publication Date:
April 21, 2022
Filing Date:
October 15, 2020
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
International Classes:
H04W16/14; H04W16/28; H04W56/00; H04W72/04; H04W74/04
Other References:
OPPO: "Channel access procedures for NR-U", 3GPP TSG RAN WG1 #96 RL-1901922, 25 February 2019 (2019-02-25), XP051599616
ZTE, SANECHIPS: "Discussion on initial access signals and channels for NR-U", 3GPP DRAFT; R1-1900097 DISCUSSION ON INITIAL ACCESS SIGNALS AND CHANNELS FOR NR-U, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Taipei; 20190121 - 20190125, 20 January 2019 (2019-01-20), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051593023
CONVIDA WIRELESS: "Design considerations on channel accessing", 3GPP TSG RAN WG1 #94B RL-1811625, 8 August 2018 (2018-08-08), XP051519019
ZTE, SANECHIPS: "Discussion on initial access signals and channels for NR-U", 3GPP DRAFT; R1-1900097 DISCUSSION ON INITIAL ACCESS SIGNALS AND CHANNELS FOR NR-U, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Taipei; 20190121 - 20190125, 20 January 2019 (2019-01-20), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051593023
CONVIDA WIRELESS: "Design considerations on channel accessing", 3GPP TSG RAN WG1 #94B RL-1811625, 8 August 2018 (2018-08-08), XP051519019
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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