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Title:
METHODS AND DEVICES FOR UPDATING IAB-NODE CONFIGURATION INFORMATION DURING INTER-DONOR MIGRATION
Document Type and Number:
WIPO Patent Application WO/2021/098085
Kind Code:
A1
Abstract:
The present disclosure describes methods, systems, and devices for updating configuration information for a migrating integrated access backhaul node (IAB-node) during an inter-donor migration from a source IAB-donor to a target IAB-donor. One method includes providing, by a target IAB-donor central unit (CU), configuration information for a migrating IAB-node distributed unit (DU) in a dedicated radio resource control (RRC) message during handover preparation. The method further includes sending, by the target IAB-donor CU, a XnAP message to a source IAB-donor CU, the XnAP message comprising the configuration information as an RRC transparent container, and then the source IAB-donor CU sends the dedicated RRC message to a migrating IAB-node mobile termination (MT), the dedicated RRC message comprising the configuration information.

Inventors:
CAO KUN (CN)
HUANG YING (CN)
CHEN LIN (CN)
Application Number:
PCT/CN2020/078219
Publication Date:
May 27, 2021
Filing Date:
March 06, 2020
Export Citation:
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Assignee:
ZTE CORP (CN)
International Classes:
H04W36/00
Domestic Patent References:
WO2020033655A12020-02-13
Foreign References:
CN110662266A2020-01-07
CN110740485A2020-01-31
CN110830979A2020-02-21
US20190394738A12019-12-26
Other References:
CATT: "(TP for NR_IAB BL CR for TS 38.401) Inter-CU IAB-node migration", 3GPP DRAFT; R3-195365 (TP FOR NR_IAB BL CR FOR TS 38.401) INTER-CU IAB-NODE MIGRATION, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG3, no. Chongqing, China; 20191014 - 20191018, 3 October 2019 (2019-10-03), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051792402
ZTE, SANECHIPS: "Discussion on network-controlled IAB migration handling", 3GPP DRAFT; R3-193654 DISCUSSION ON NETWORK-CONTROLLED IAB MIGRATION HANDLING, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG3, no. Ljubljana, Slovenija; 20190826 - 20190830, 17 August 2019 (2019-08-17), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051769858
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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