IP Library › Granted Patent US 12,464,424
Granted Patent B2
US 12,464,424 · App. 17/874,427 · Granted Nov 4, 2025

Method and apparatus for improving handover performance in communication system

Inventors: Hyun Seo Park (Daejeon, KR); Yong Jin Kwon (Daejeon, KR); Yun Joo Kim (Daejeon, KR); Eunkyung Kim (Daejeon, KR); An Seok Lee (Daejeon, KR); Yu Ro Lee (Daejeon, KR); Heesoo Lee (Daejeon, KR)
Assignee: Electronics and Telecommunications Research Institute
H04W36/0079H04W24/10H04W36/0058
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Quick Facts
Patent No.
US 12,464,424
App. No.
17/874,427
Granted
Nov 4, 2025
Kind
B2
Abstract

An operation method of a terminal in a communication system may comprise: receiving a first occurrence reporting condition of a handover problem from a source base station; performing a handover from the source base station to a target base station; identifying whether a handover problem occurs based on the first occurrence reporting condition while performing the handover; and in response to identifying that a handover problem occurs, transmitting information indicating the occurrence of the handover problem to the target base station.

Claims (13)

1 . An operation method of a terminal in a communication system, the operation method comprising:

receiving a problematic handover-related reporting condition from a source cell;

performing a handover from the source cell to a target cell;

in response to the handover being successful and the problematic handover-related reporting condition being satisfied, storing first information related to the handover; and

transmitting, to the target cell, second information indicating the first information related to the handover is stored.

2 . The operation method according to claim 1 , wherein the first information related to the handover includes information on a handover problem affecting performance of the successful handover.

3 . The operation method according to claim 2 , wherein the first information related to the handover includes information related to an outage time during the handover.

4 . The operation method according to claim 2 , wherein the first information related to the handover includes information related to an interruption time of the handover.

5 . The operation method according to claim 1 , wherein the problematic handover-related reporting condition is received from the source cell through a radio resource control (RRC) reconfiguration message.

6 . The operation method according to claim 1 , wherein the second information corresponds to a handover problem indicator included in an RRC reconfiguration complete message transmitted to the target cell, and the handover problem indicator is set to a value indicating that first information related to the handover is available.

7 . The operation method according to claim 1 , further comprising:

receiving a transmission request for a content report of the first information related to the handover from the target cell; and

transmitting the content report to the target cell.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 27, 2022
From: PARK, HYUN SEO; KWON, YONG JIN; KIM, YUN JOO; KIM, EUNKYUNG; LEE, AN SEOK; LEE, YU RO; LEE, HEESOO
To: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
Reel/Frame 060637/0683 →
Priority Claims (2)
KR 10-2021-0100945 · Jul 30, 2021 · national
KR 10-2022-0083116 · Jul 6, 2022 · national
Continuity (1)
Related Publication 20230038795A1 · Feb 9, 2023
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