Title:
WIRELESS BASE STATION AND TERMINAL
Document Type and Number:
WIPO Patent Application WO/2022/079878
Kind Code:
A1
Abstract:
A channel access procedure is executed in a second frequency band different from a first frequency band. A wireless base station executes the channel access procedure using a plurality of directional reception beams and transmits a single or a plurality of different synchronizing signal blocks in a channel occupied time after the channel access procedure.
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/JP2020/039001
Publication Date:
April 21, 2022
Filing Date:
October 15, 2020
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
International Classes:
H04W16/28; H04W16/14; H04W56/00; H04W72/04; H04W74/08
Domestic Patent References:
| WO2020154226A1 | 2020-07-30 | |||
| WO2020183613A1 | 2020-09-17 |
Other References:
QUECTEL: "Discussions on Channel Access Mechanism for NR from 52.6GHz to 71GHz", 3GPP DRAFT; R1-2004303, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20200525 - 20200605, 15 May 2020 (2020-05-15), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051886047
ZTE, SANECHIPS: "Discussion on enhancement of initial access procedures for NR-U", 3GPP DRAFT; R1-1908206 DISCUSSION ON ENHANCEMENT OF THE INITIAL ACCESS PROCEDURE 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. Prague, CZ; 20190826 - 20190830, 17 August 2019 (2019-08-17), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051764826
3GPP: "New WID on Extending current NR operation to 71 GHz", RP-193229, 3GPP TSG RAN MEETING # 86, December 2019 (2019-12-01)
3GPP: "RAN1 Chairman's Notes", 3GPP TSG RAN WG1 MEETING # 102-E, E-MEETING, August 2020 (2020-08-01)
ZTE, SANECHIPS: "Discussion on enhancement of initial access procedures for NR-U", 3GPP DRAFT; R1-1908206 DISCUSSION ON ENHANCEMENT OF THE INITIAL ACCESS PROCEDURE 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. Prague, CZ; 20190826 - 20190830, 17 August 2019 (2019-08-17), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051764826
3GPP: "New WID on Extending current NR operation to 71 GHz", RP-193229, 3GPP TSG RAN MEETING # 86, December 2019 (2019-12-01)
3GPP: "RAN1 Chairman's Notes", 3GPP TSG RAN WG1 MEETING # 102-E, E-MEETING, August 2020 (2020-08-01)
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
Download PDF: