Title:
METHODS AND APPARATUSES FOR A DAPS FAILURE RECOVERY MECHANISM AND A MRO MECHANISM FOR CHO AND DAPS PROCEDURES
Document Type and Number:
WIPO Patent Application WO/2022/120569
Kind Code:
A1
Abstract:
Embodiments of the present application relate to methods and apparatuses for a dual active protocol stack (DAPS) failure recovery mechanism and a mobility robustness optimization (MRO) mechanism for conditional handover (CHO) and DAPS procedures. According to an embodiment of the present application, a method can include: receiving CHO configuration information, wherein the CHO configuration information is associated with a CHO candidate cell, wherein the CHO configuration information includes a RRC reconfiguration message and a set of one or more execution conditions; in response to meeting one or more execution conditions associated with the CHO candidate cell, performing a CHO procedure from a source cell to the CHO candidate cell; and in response to successfully accessing the CHO candidate cell or in response to an occurrence of a failure during the CHO procedure, transmitting time related assistant information to a serving cell, wherein the serving cell is one of the source cell and the CHO candidate cell. In addition, a recovery procedure and a MRO mechanism associated with a DAPS handover procedure are also studied.
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Inventors:
WU LIANHAI (CN)
DAI MINGZENG (CN)
YAN LE (CN)
ZHANG CONGCHI (CN)
WANG HAIMING (CN)
DAI MINGZENG (CN)
YAN LE (CN)
ZHANG CONGCHI (CN)
WANG HAIMING (CN)
Application Number:
PCT/CN2020/134528
Publication Date:
June 16, 2022
Filing Date:
December 08, 2020
Export Citation:
Assignee:
LENOVO BEIJING LTD (CN)
International Classes:
H04W36/00; H04W36/18
Domestic Patent References:
| WO2020231224A1 | 2020-11-19 |
Foreign References:
| CN112042224A | 2020-12-04 | |||
| CN111757400A | 2020-10-09 | |||
| CN110290560A | 2019-09-27 |
Other References:
ERICSSON: "CHO and DAPS-related SON aspects", 3GPP DRAFT; R2-2010146, 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 , XP051942832
ERICSSON: "Summary of AI 8.13.2.1 - Handover related SON aspects", 3GPP TSG-RAN WG2 #112-E R2-2010995, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. 2020-11-02 to 2020-11-13, 16 November 2020 (2020-11-16), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, pages 1 - 40, XP009533180
CATT: "Discussion on CHO and DAPS Mobility Enhancement", 3GPP DRAFT; R2-2008844, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. electronic; 20201102 - 20201113, 23 October 2020 (2020-10-23), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051941924
HUAWEI, HISILICON: "Discussion on handover related SON aspects", 3GPP DRAFT; R2-2010174, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. electronic; 20201102 - 20201113, 23 October 2020 (2020-10-23), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051942860
OPPO: "Consideration on handover related SON", 3GPP DRAFT; R2-2009017, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. electronic; 20201101, 23 October 2020 (2020-10-23), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051942062
SHIKIDA JUN ET AL.: "Performance Analysis of Low Complexity Coordinated Beamforming for Massive MIMO System", 2017 IEEE 86TH VEHICULAR TECHNOLOGY CONFERENCE, 24 September 2017 (2017-09-24), pages 1 - 5, XP033319614, DOI: 10.1109/VTCFall.2017.8288011
ERICSSON: "Summary of AI 8.13.2.1 - Handover related SON aspects", 3GPP TSG-RAN WG2 #112-E R2-2010995, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. 2020-11-02 to 2020-11-13, 16 November 2020 (2020-11-16), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, pages 1 - 40, XP009533180
CATT: "Discussion on CHO and DAPS Mobility Enhancement", 3GPP DRAFT; R2-2008844, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. electronic; 20201102 - 20201113, 23 October 2020 (2020-10-23), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051941924
HUAWEI, HISILICON: "Discussion on handover related SON aspects", 3GPP DRAFT; R2-2010174, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. electronic; 20201102 - 20201113, 23 October 2020 (2020-10-23), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051942860
OPPO: "Consideration on handover related SON", 3GPP DRAFT; R2-2009017, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. electronic; 20201101, 23 October 2020 (2020-10-23), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051942062
SHIKIDA JUN ET AL.: "Performance Analysis of Low Complexity Coordinated Beamforming for Massive MIMO System", 2017 IEEE 86TH VEHICULAR TECHNOLOGY CONFERENCE, 24 September 2017 (2017-09-24), pages 1 - 5, XP033319614, DOI: 10.1109/VTCFall.2017.8288011
Attorney, Agent or Firm:
LEE AND LI - LEAVEN IPR AGENCY LTD. (CN)
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