Title:
SYSTEM INFORMATION DELIVERY FOR LAYER-2-BASED SIDELINK RELAY
Document Type and Number:
WIPO Patent Application WO/2021/136377
Kind Code:
A1
Abstract:
Apparatus and methods are provided for system information delivery through a sidelink relay in a NR network. In one novel aspect, on-demand system information is delivered to a remote UE through a PC5-RRC message. In one embodiment, the relay UE aggregates SI requests from one or more UEs in the SI Request destined to the gNB. In one embodiment, the PC5-RRC message is a PC5 unicast message based on an Uu-RRC broadcast SI Update message from the gNB. In another embodiment, the PC5-RRC message is a PC5 broadcast message, which includes a version number in a MAC header indicating an SI update broadcast. In yet another embodiment, the PC5-RRC message is a PC5 groupcast message. In one embodiment, the remote UE is in an RRC-IDLE state, and wherein the UE sends the SI Request message destined to the gNB through the sidelink in a PC5-RRC SI Request message.
Inventors:
WANG XUELONG (CN)
TENNY NATHAN EDWARD (US)
LIN GUAN-YU (CN)
TENNY NATHAN EDWARD (US)
LIN GUAN-YU (CN)
Application Number:
PCT/CN2020/141410
Publication Date:
July 08, 2021
Filing Date:
December 30, 2020
Export Citation:
Assignee:
MEDIATEK SINGAPORE PTE LTD (SG)
WANG XUELONG (CN)
TENNY NATHAN EDWARD (US)
LIN GUAN YU (CN)
WANG XUELONG (CN)
TENNY NATHAN EDWARD (US)
LIN GUAN YU (CN)
International Classes:
H04W88/04; H04W72/04
Domestic Patent References:
| WO2018203443A1 | 2018-11-08 |
Other References:
MEDIATEK INC.: "RRC States for Relaying", 3GPP DRAFT; R2-2006571, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. electronic; 20200817 - 20200828, 7 August 2020 (2020-08-07), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051911514
ERICSSON: "RAN2 impacts introduced by Layer 2 SL relay", 3GPP DRAFT; R2-2009230, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. Electronic meeting; 20201102 - 20201113, 22 October 2020 (2020-10-22), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051941277
ANONYMOUS: "3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification (Release 15)", 3GPP STANDARD; TECHNICAL SPECIFICATION; 3GPP TS 36.331, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. V15.7.0, 27 September 2019 (2019-09-27), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, pages 1 - 962, XP051785031
OPPO: "New SID: Study on NR sidelink relay", 3GPP DRAFT; RP-193253, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. TSG RAN, no. Sitges, Spain; 20191209 - 20191212, 12 December 2019 (2019-12-12), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051840383
ERICSSON: "RAN2 impacts introduced by Layer 2 SL relay", 3GPP DRAFT; R2-2009230, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. Electronic meeting; 20201102 - 20201113, 22 October 2020 (2020-10-22), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051941277
ANONYMOUS: "3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification (Release 15)", 3GPP STANDARD; TECHNICAL SPECIFICATION; 3GPP TS 36.331, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. V15.7.0, 27 September 2019 (2019-09-27), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, pages 1 - 962, XP051785031
OPPO: "New SID: Study on NR sidelink relay", 3GPP DRAFT; RP-193253, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. TSG RAN, no. Sitges, Spain; 20191209 - 20191212, 12 December 2019 (2019-12-12), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051840383
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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