Title:
METHOD AND APPARATUS FOR WIDEBAND PRACH CONFIGURATION FOR NR UNLICENSED
Document Type and Number:
WIPO Patent Application WO/2021/006688
Kind Code:
A1
Abstract:
A method of a user equipment (UE) in a wireless communication system supporting a shared spectrum channel access is provided. The method comprises: receiving, from a base station (BS), configuration information associated with a subcarrier spacing (SCS) of a physical random access channel (PRACH) preamble, a root sequence index for the PRACH preamble, and zeroCorrelationZone (ZCZ) configuration information; determining a sequence length for the PRACH preamble based on the configuration information associated with the SCS of the PRACH preamble; determining a sequence number for the PRACH preamble based on the root sequence index; determining a cyclic shift for the PRACH preamble based on the ZCZ configuration information; and transmitting, to the base station, the PRACH preamble based on the sequence number, the cyclic shift and the sequence length.
Inventors:
LI YINGZHE (US)
SI HONGBO (US)
KIM EUN SUN (US)
SI HONGBO (US)
KIM EUN SUN (US)
Application Number:
PCT/KR2020/009072
Publication Date:
January 14, 2021
Filing Date:
July 10, 2020
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H04W74/00; H04J13/00; H04L5/00; H04L27/26; H04W72/12; H04W74/08
Foreign References:
| US20190074922A1 | 2019-03-07 |
Other References:
QUALCOMM INCORPORATED: "Feature lead summary on initial access signals and channels for NR-U", 3GPP DRAFT; R1-1907883 FL SUMMARY 7.2.2.1.1_V2, 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, R1-1907883 FL summary 7.2.2.1.1_v2, 17 May 2019 (2019-05-17), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051740144
NOKIA, NOKIA SHANGHAI BELL: "Initial Access Signals and Channels for NR-U", 3GPP DRAFT; R1-1900347_INITIAL ACCESS SIGNALS AND CHANNELS_NOK, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Taipei, Taiwan; 20190121 - 20190125, R1-1900347_Initial Access Signals and Channels_NOK, 11 January 2019 (2019-01-11), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051575956
HUAWEI, HISILICON: "Initial access signal and channels in NR unlicensed band", 3GPP DRAFT; R1-1906041, 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, R1-1906041, 3 May 2019 (2019-05-03), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051708083
LG ELECTRONICS: "Physical layer design of initial access signals and channels for NR-U", 3GPP DRAFT; R1-1904619, 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, R1-1904619, 30 March 2019 (2019-03-30), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051691648
"Feature lead summary on initial access signals and channels for NR-U", 3GPP DRAFT; R1-1907883 FL SUMMARY 7.2.2.1.1 V2, vol. RAN WG1, 13 May 2019 (2019-05-13)
NR-U. ZTEET: "Summary of off-line discussion of Al 6.1.4.1, Remaining details on PRACH formats", 3GPP DRAFT; R1, 17 August 2017 (2017-08-17)
3GPP TS 38.211
3GPP TS 38.212
3GPP TS 38.213
3GPP TS 38.214
3GPP TS 38.331
NOKIA, NOKIA SHANGHAI BELL: "Initial Access Signals and Channels for NR-U", 3GPP DRAFT; R1-1900347_INITIAL ACCESS SIGNALS AND CHANNELS_NOK, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Taipei, Taiwan; 20190121 - 20190125, R1-1900347_Initial Access Signals and Channels_NOK, 11 January 2019 (2019-01-11), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051575956
HUAWEI, HISILICON: "Initial access signal and channels in NR unlicensed band", 3GPP DRAFT; R1-1906041, 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, R1-1906041, 3 May 2019 (2019-05-03), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051708083
LG ELECTRONICS: "Physical layer design of initial access signals and channels for NR-U", 3GPP DRAFT; R1-1904619, 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, R1-1904619, 30 March 2019 (2019-03-30), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051691648
"Feature lead summary on initial access signals and channels for NR-U", 3GPP DRAFT; R1-1907883 FL SUMMARY 7.2.2.1.1 V2, vol. RAN WG1, 13 May 2019 (2019-05-13)
NR-U. ZTEET: "Summary of off-line discussion of Al 6.1.4.1, Remaining details on PRACH formats", 3GPP DRAFT; R1, 17 August 2017 (2017-08-17)
3GPP TS 38.211
3GPP TS 38.212
3GPP TS 38.213
3GPP TS 38.214
3GPP TS 38.331
Attorney, Agent or Firm:
Y.P.LEE, MOCK & PARTNERS (KR)
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