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Title:
METHOD AND DEVICE FOR TRANSMITTING RANDOM ACCESS SIGNAL, AND COMPUTER READABLE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/060874
Kind Code:
A1
Abstract:
A method for 2 -step RA (2 -step random access) performed by a terminal (UE) is provided. The method comprises receiving, from a base station, first random access channel (RACH) configuration for 4 -step RA (4 -step random access), second RACH configuration for the 2 -step RA, and physical uplink shared channel (PUSCH) configuration, the first RACH configuration including information on RA occasions for the 4-step RA; in case that an index indicating a subset of the RA occasions is included in the second RACH configuration, identifying at least one RA occasion for the 2-step RA based on the subset; identifying at least one PUSCH resource based on the PUSCH configuration and the at least one RA occasion; and transmitting, to the base station, a random access preamble in the at least one RA occasion and a PUSCH in the at least one PUSCH resource.

Inventors:
XIONG QI (CN)
SUN FEIFEI (CN)
WANG YI (CN)
YU BIN (CN)
Application Number:
PCT/KR2020/012963
Publication Date:
April 01, 2021
Filing Date:
September 24, 2020
Export Citation:
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Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H04W74/08; H04W72/04; H04W72/12; H04W74/00
Foreign References:
US20180110074A12018-04-19
Other References:
NOKIA, NOKIA SHANGHAI BELL: "On 2-step RACH Procedure", 3GPP DRAFT; R1-1908342 ON 2-STEP RACH PROCEDURE, 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, 16 August 2019 (2019-08-16), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051764951
LG ELECTRONICS: "Discussion on Channel Structure for 2-step RACH", 3GPP DRAFT; R1-1906717 LG_RACH STRUCTURE_FINAL, 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, 4 May 2019 (2019-05-04), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, pages 1 - 9, XP051708753
WI RAPPORTEUR (ZTE): "RAN1 agreements for Rel-16 2-step RACH", R1-1909914, 3GPP TSG RAN WG1 #98, PRAGUE, CZECH REPUBLIC; SECTION 6, 23 September 2019 (2019-09-23), XP051782867
SAMSUNG: "Channel Structure for Two-Step RACH", 3GPP DRAFT; R1-1904392, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Xi’an, China; 20190408 - 20190412, 29 March 2019 (2019-03-29), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051691481
Attorney, Agent or Firm:
YOON & LEE INTERNATIONAL PATENT & LAW FIRM (KR)
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