Title:
METHOD AND APPARATUS FOR SAVING POWER OF USER EQUIPMENT IN WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/086128
Kind Code:
A1
Abstract:
A method performed by a user equipment (UE) in a wireless communication system is provided. The method comprises: receiving, from a base station, higher layer signaling comprising a power saving offset (PS-offset) indicating a first start time when the UE starts, prior to a second start time of a drx-onDuration timer, monitoring physical downlink channel (PDCCH) for downlink control information (DCI) notifying power saving information outside a discontinuous reception (DRX) active time and parameters indicating a search space; identifying at least one PDCCH monitoring occasion for the DCI based on the PS-offset and the parameters indicating the search space; and monitoring the DCI on the at least one PDCCH monitoring occasion.
Inventors:
KIM TAEHYOUNG (KR)
KANG JINKYU (KR)
KIM YOUNGBUM (KR)
CHOI SEUNGHOON (KR)
KANG JINKYU (KR)
KIM YOUNGBUM (KR)
CHOI SEUNGHOON (KR)
Application Number:
PCT/KR2020/015071
Publication Date:
May 06, 2021
Filing Date:
October 30, 2020
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H04W52/02; H04W76/28
Domestic Patent References:
| WO2019008491A1 | 2019-01-10 |
Other References:
CATT: "Offline Discussion Summary of PDCCH-based Power Saving Signal/Channel", 3GPP DRAFT; R1-1911558_SUMMARY OF AI-7 2 9 1 POWER SAVING SIGNAL_V5, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Chongqing, China; 20191014 - 20191020, 22 October 2019 (2019-10-22), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051798822
HUAWEI, HISILICON: "PDCCH-based power saving signal/channel", 3GPP DRAFT; R1-1908069, 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, XP051764692
APPLE INC.: "PDCCH based power saving channel design for UE power saving", 3GPP DRAFT; R1-1910972 PDCCH BASED POWER SAVING CHANNEL DESIGN FOR UE POWER SAVING, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Chongqing, China; 20191014 - 20191018, 5 October 2019 (2019-10-05), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051808766
SPREADTRUM COMMUNICATIONS: "Discussion on PDCCH-based power saving channel", 3GPP DRAFT; R1-1910013_DISCUSSION ON PDCCH-BASED POWER SAVING CHANNEL, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Chongqing, China; 20191014 - 20191020, 3 October 2019 (2019-10-03), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051788820
CATT: "Offline Discussion Summary of PDCCH-based Power Saving Signal/Channel", 3GPP DRAFT; R1-1911620 SUMMARY OF AI-7 2 9 1 POWER SAVING SIGNAL V7, vol. RAN WG1, 22 October 2019 (2019-10-22)
HUAWEI, HISILICON: "PDCCH-based power saving signal/channel", 3GPP DRAFT; R1-1908069, 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, XP051764692
APPLE INC.: "PDCCH based power saving channel design for UE power saving", 3GPP DRAFT; R1-1910972 PDCCH BASED POWER SAVING CHANNEL DESIGN FOR UE POWER SAVING, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Chongqing, China; 20191014 - 20191018, 5 October 2019 (2019-10-05), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051808766
SPREADTRUM COMMUNICATIONS: "Discussion on PDCCH-based power saving channel", 3GPP DRAFT; R1-1910013_DISCUSSION ON PDCCH-BASED POWER SAVING CHANNEL, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Chongqing, China; 20191014 - 20191020, 3 October 2019 (2019-10-03), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051788820
CATT: "Offline Discussion Summary of PDCCH-based Power Saving Signal/Channel", 3GPP DRAFT; R1-1911620 SUMMARY OF AI-7 2 9 1 POWER SAVING SIGNAL V7, vol. RAN WG1, 22 October 2019 (2019-10-22)
Attorney, Agent or Firm:
Y.P.LEE, MOCK & PARTNERS (KR)
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