Title:
METHOD AND APPARATUS FOR UPLINK TRANSMISSIONS IN FRAME-BASED EQUIPMENT NR UNLICENSED
Document Type and Number:
WIPO Patent Application WO/2021/049912
Kind Code:
A1
Abstract:
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method performed by a terminal operating in a shared spectrum channel is provided. The method comprises: receiving, from a base station, downlink (DL) transmission in a channel occupancy time (COT); identifying a time gap between the DL transmission and a uplink (UL) transmission; identifying whether to perform a channel sensing before the UL transmission based on the time gap; and transmitting, to the base station, the UL transmission within the COT.
Inventors:
LI YINGZHE (US)
SI HONGBO (US)
SI HONGBO (US)
Application Number:
PCT/KR2020/012322
Publication Date:
March 18, 2021
Filing Date:
September 11, 2020
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H04W72/12; H04W72/04; H04W74/00; H04W74/08
Domestic Patent References:
| WO2017155305A1 | 2017-09-14 |
Other References:
HUAWEI, HISILICON: "Coexistence and channel access for NR unlicensed band operations", 3GPP DRAFT; R1-1908109, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Prague, Czech Republic; 20190826 - 20190830, 17 August 2019 (2019-08-17), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051764729
LG ELECTRONICS: "Channel access procedure for NR-U", 3GPP DRAFT; R1-1908535, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Prague, Czech Republic; 20190826 - 20190830, 17 August 2019 (2019-08-17), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051765143
MEDIATEK INC.: "Discussion on Channel Access Procedure", 3GPP DRAFT; R1-1908385_DISCUSSION ON CHANNEL ACCESS PROCEDURE_FINAL, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Prague, Czech Republic; 20190826 - 20190830, 17 August 2019 (2019-08-17), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051764994
ITRI: "Discussion on PDCCH monitoring after a COT initiated by gNB in NR-U", 3GPP DRAFT; R1-1907308, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Reno, USA; 20190513 - 20190517, 3 May 2019 (2019-05-03), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051709330
HUAWEI ET AL.: "Coexistence and channel access for NR unlicensed band operations", 3GPP DRAFT; RL-19081 09
NOKIA ET AL.: "Channel access and co-existence for NR-U operation", 3GPP DRAFT; R1-1904186
"NR; Physical channels and modulation", 3GPP TS 38.211
"NR; Multiplexing and Channel coding", 3GPP TS 38.212
"NR; Physical Layer Procedures for Control", 3GPP TS 38.213
"NR; Physical Layer Procedures for Data", 3GPP TS 38.214
"NR; Radio Resource Control (RRC) Protocol Specification", 3GPP TS 38.331
"5 GHz RLAN; Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU", ETSI EN 301 893, 2017
"Multiple-Gigabit/s radio equipment operating in the 60 GHz band; Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU", ETSI EN 302 567, 2017
"Study on Licensed-Assisted Access to Unlicensed Spectrum", 3GPP TR 36.889, 2015
"Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications", IEEE STD 802.11-2016, 2016
See also references of EP 3874881A4
LG ELECTRONICS: "Channel access procedure for NR-U", 3GPP DRAFT; R1-1908535, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Prague, Czech Republic; 20190826 - 20190830, 17 August 2019 (2019-08-17), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051765143
MEDIATEK INC.: "Discussion on Channel Access Procedure", 3GPP DRAFT; R1-1908385_DISCUSSION ON CHANNEL ACCESS PROCEDURE_FINAL, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Prague, Czech Republic; 20190826 - 20190830, 17 August 2019 (2019-08-17), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051764994
ITRI: "Discussion on PDCCH monitoring after a COT initiated by gNB in NR-U", 3GPP DRAFT; R1-1907308, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Reno, USA; 20190513 - 20190517, 3 May 2019 (2019-05-03), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051709330
HUAWEI ET AL.: "Coexistence and channel access for NR unlicensed band operations", 3GPP DRAFT; RL-19081 09
NOKIA ET AL.: "Channel access and co-existence for NR-U operation", 3GPP DRAFT; R1-1904186
"NR; Physical channels and modulation", 3GPP TS 38.211
"NR; Multiplexing and Channel coding", 3GPP TS 38.212
"NR; Physical Layer Procedures for Control", 3GPP TS 38.213
"NR; Physical Layer Procedures for Data", 3GPP TS 38.214
"NR; Radio Resource Control (RRC) Protocol Specification", 3GPP TS 38.331
"5 GHz RLAN; Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU", ETSI EN 301 893, 2017
"Multiple-Gigabit/s radio equipment operating in the 60 GHz band; Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU", ETSI EN 302 567, 2017
"Study on Licensed-Assisted Access to Unlicensed Spectrum", 3GPP TR 36.889, 2015
"Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications", IEEE STD 802.11-2016, 2016
See also references of EP 3874881A4
Attorney, Agent or Firm:
YOON & LEE INTERNATIONAL PATENT & LAW FIRM (KR)
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