Title:
METHOD AND DEVICE FOR PERFORMING HANDOVER IN WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/091248
Kind Code:
A1
Abstract:
Disclosed are a method and a device for performing handover in a wireless communication system, and a method by which a terminal operates in a wireless communication system can comprise the steps of: receiving, from a source base station, a radio resource control (RRC) re-configuration message indicating handover, the RRC re-configuration message including data radio bearer (DRB) configuration information; generating a MAC entity for a target base station if the DRB configuration information includes an indicator indicating the configuration of dual active protocol stack (DAPS) with respect to at least one DRB; configuring the MAC entity for the base station on the basis of MAC configuration information included in the RRC re-configuration message indicating handover; suspending a signaling radio bearer (SRB) for the source base station; and establishing or configuring an SRB for the target base station.
Inventors:
KIM DONGGUN (KR)
KIM SOENGHUN (KR)
KIM SOENGHUN (KR)
Application Number:
PCT/KR2020/015382
Publication Date:
May 14, 2021
Filing Date:
November 05, 2020
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H04W36/00; H04W36/02; H04W36/08; H04W36/18
Foreign References:
| US20090017826A1 | 2009-01-15 |
Other References:
NOKIA, NOKIA SHANGHAI BELL: "Analysis of DAPS Operation", 3GPP DRAFT; R2-1909036 ANALYSIS OF DAPS OPERATION_V1, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, 15 August 2019 (2019-08-15), XP051766846
OPPO: "Further details on dual active protocol stack", 3GPP DRAFT; R2-1909670 - FURTHER DETAILS ON DUAL ACTIVE PROTOCOL STACK, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, 16 August 2019 (2019-08-16), XP051767465
ZTE CORPORATION, SANECHIPS: "Discussion on PDCP aspects for RUDI", 3GPP DRAFT; R2-1910758 DISCUSSION ON THE PDCP ASPECTS FOR RUDI, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, 16 August 2019 (2019-08-16), XP051768526
MEDIATEK INC., QUALCOMM INCORPORATED, INTEL CORPORATION, CHARTER COMMUNICATIONS, VIVO, OPPO, APPLE, NEC: "UL Handling with DAPS during RUDI Handover", 3GPP DRAFT; R2-1909178, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, 16 August 2019 (2019-08-16), XP051766985
See also references of EP 4002919A4
OPPO: "Further details on dual active protocol stack", 3GPP DRAFT; R2-1909670 - FURTHER DETAILS ON DUAL ACTIVE PROTOCOL STACK, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, 16 August 2019 (2019-08-16), XP051767465
ZTE CORPORATION, SANECHIPS: "Discussion on PDCP aspects for RUDI", 3GPP DRAFT; R2-1910758 DISCUSSION ON THE PDCP ASPECTS FOR RUDI, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, 16 August 2019 (2019-08-16), XP051768526
MEDIATEK INC., QUALCOMM INCORPORATED, INTEL CORPORATION, CHARTER COMMUNICATIONS, VIVO, OPPO, APPLE, NEC: "UL Handling with DAPS during RUDI Handover", 3GPP DRAFT; R2-1909178, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, 16 August 2019 (2019-08-16), XP051766985
See also references of EP 4002919A4
Attorney, Agent or Firm:
Y.P.LEE,MOCK & PARTNERS (KR)
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