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Patent Searching and Data


Title:
TECHNIQUES OF REDUCING SCELL ACTIVATION DELAY
Document Type and Number:
WIPO Patent Application WO/2021/063400
Kind Code:
A1
Abstract:
A method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receives, on a primary cell, an activation command from a base station for activating a secondary cell between the UE and the base station. The UE receives scheduling information of a set of aperiodic TRSs. The UE receives a trigger indicating transmission of the set of aperiodic TRSs. The UE initiates a RF chain of the UE configured for the secondary cell in an interruption period. The UE receives, in response to receiving the trigger and in accordance with the scheduling information, the set of aperiodic TRSs on the secondary cell prior to receiving an initial SSB or an initial periodic TRS after the interruption period. The UE performs time and frequency tracking on the secondary cell based on the set of aperiodic TRSs.

Inventors:
HSIEH CHI-HSUAN (CN)
CHUANG CHIAO-YAO (CN)
HUANG DIN-HWA (CN)
Application Number:
PCT/CN2020/119454
Publication Date:
April 08, 2021
Filing Date:
September 30, 2020
Export Citation:
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Assignee:
MEDIATEK INC (CN)
International Classes:
H04W72/04
Foreign References:
CN110166192A2019-08-23
US20190150161A12019-05-16
Other References:
QUALCOMM INCORPORATED: "Fast SCG and SCell Activation", 3GPP DRAFT; R1-1907306 FAST SCG AND SCELL ACTIVATION, 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, 13 May 2019 (2019-05-13), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051728746
ERICSSON: "Summary#2 of Efficient and low latency serving cell configuration/activation/setup", 3GPP DRAFT; R1-1905900_FAST_SCELL_SUMMARY_V5, 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, 15 April 2019 (2019-04-15), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, pages 1 - 11, XP051707943
VIVO: "Efficient Scell activation", 3GPP DRAFT; R1-1906184 EFFICIENT SCELL ACTIVATION_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, 13 May 2019 (2019-05-13), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051727638
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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