Title:
WIRELESS BASE STATION AND TERMINAL
Document Type and Number:
WIPO Patent Application WO/2022/079877
Kind Code:
A1
Abstract:
In the present invention, a channel access procedure is performed in a second frequency band which differs from a first frequency band. A wireless base station, according to the present invention, performs a channel access procedure by using a single directivity that is wider than in other cases, and transmits a plurality of differing synchronous signal blocks during the channel occupancy 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/JP2020/039000
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
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
INTERDIGITAL INC.: "On Initial Access for NR Unlicensed Spectrum", 3GPP DRAFT; R1-1807037, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Busan, South Korea; 20180521 - 20180525, 20 May 2018 (2018-05-20), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051442235
SAMSUNG: "Channel access procedures for NR-U", 3GPP DRAFT; R1-1812977-CHANNEL ACCESS PROCEDURES 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. Spokane, USA; 20181112 - 20181116, 11 November 2018 (2018-11-11), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051554956
QUALCOMM INCORPORATED: "Channel access mechanism for NR in 52.6 to 71GHz band", 3GPP DRAFT; R1-2006798, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20200817 - 20200828, 8 August 2020 (2020-08-08), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051918248
"New WID on Extending current NR operation to 71 GHz", 3GPP TSG RAN MEETING # 86, December 2019 (2019-12-01)
"RAN1 Chairman's Notes", 3GPP TSG RAN WG1 MEETING # 102-E, August 2020 (2020-08-01)
3GPP TS 38.300
3GPP TS 37.213
3GPP TS 38.213
INTERDIGITAL INC.: "On Initial Access for NR Unlicensed Spectrum", 3GPP DRAFT; R1-1807037, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Busan, South Korea; 20180521 - 20180525, 20 May 2018 (2018-05-20), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051442235
SAMSUNG: "Channel access procedures for NR-U", 3GPP DRAFT; R1-1812977-CHANNEL ACCESS PROCEDURES 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. Spokane, USA; 20181112 - 20181116, 11 November 2018 (2018-11-11), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051554956
QUALCOMM INCORPORATED: "Channel access mechanism for NR in 52.6 to 71GHz band", 3GPP DRAFT; R1-2006798, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20200817 - 20200828, 8 August 2020 (2020-08-08), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051918248
"New WID on Extending current NR operation to 71 GHz", 3GPP TSG RAN MEETING # 86, December 2019 (2019-12-01)
"RAN1 Chairman's Notes", 3GPP TSG RAN WG1 MEETING # 102-E, August 2020 (2020-08-01)
3GPP TS 38.300
3GPP TS 37.213
3GPP TS 38.213
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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