AU2020266435B2 - Conditional handover (CHO) deconfiguration and failure handling in wireless communications - Google Patents

Conditional handover (CHO) deconfiguration and failure handling in wireless communications Download PDF

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Publication number
AU2020266435B2
AU2020266435B2 AU2020266435A AU2020266435A AU2020266435B2 AU 2020266435 B2 AU2020266435 B2 AU 2020266435B2 AU 2020266435 A AU2020266435 A AU 2020266435A AU 2020266435 A AU2020266435 A AU 2020266435A AU 2020266435 B2 AU2020266435 B2 AU 2020266435B2
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Australia
Prior art keywords
base station
target base
conditional handover
handover
configuration
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AU2020266435A
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AU2020266435A1 (en
Inventor
Ozcan Ozturk
Karthika Paladugu
Rajat Prakash
Punyaslok PURKAYASTHA
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Qualcomm Inc
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Qualcomm Inc
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00837—Determination of triggering parameters for hand-off
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H04W36/0094—Definition of hand-off measurement parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0079—Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00838—Resource reservation for handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H04W36/083—Reselecting an access point wherein at least one of the access points is a moving node
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/249—Reselection being triggered by specific parameters according to timing information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H04W36/36—Reselection control by user or terminal equipment
    • H04W36/362—Conditional handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H04W74/0838—Random access procedures, e.g. with 4-step access using contention-free random access [CFRA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
AU2020266435A 2019-05-02 2020-03-02 Conditional handover (CHO) deconfiguration and failure handling in wireless communications Active AU2020266435B2 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201962842330P 2019-05-02 2019-05-02
US62/842,330 2019-05-02
US16/805,347 US11012904B2 (en) 2019-05-02 2020-02-28 Conditional handover (CHO) deconfiguration and failure handling in wireless communications
US16/805,347 2020-02-28
PCT/US2020/020621 WO2020222904A1 (en) 2019-05-02 2020-03-02 Conditional handover (cho) deconfiguration and failure handling in wireless communications

Publications (2)

Publication Number Publication Date
AU2020266435A1 AU2020266435A1 (en) 2021-11-04
AU2020266435B2 true AU2020266435B2 (en) 2025-05-22

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AU2020266435A Active AU2020266435B2 (en) 2019-05-02 2020-03-02 Conditional handover (CHO) deconfiguration and failure handling in wireless communications

Country Status (10)

Country Link
US (4) US11012904B2 (https=)
EP (2) EP4462877A3 (https=)
JP (2) JP7585232B2 (https=)
KR (1) KR20220002919A (https=)
CN (1) CN113748709A (https=)
AU (1) AU2020266435B2 (https=)
PH (1) PH12021552401A1 (https=)
SG (1) SG11202110474RA (https=)
TW (1) TWI833917B (https=)
WO (1) WO2020222904A1 (https=)

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US11012904B2 (en) 2019-05-02 2021-05-18 Qualcomm Incorporated Conditional handover (CHO) deconfiguration and failure handling in wireless communications
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US12284565B2 (en) * 2019-06-27 2025-04-22 Nokia Technologies Oy RRC reconfigurations during conditional handover
CN114073130B (zh) * 2019-06-27 2024-11-08 诺基亚技术有限公司 条件切换期间的rrc重新配置
CN111800831B (zh) * 2019-08-01 2021-09-07 维沃移动通信有限公司 路径变换方法、设备、通信系统及计算机可读存储介质
US11399326B2 (en) * 2019-08-12 2022-07-26 Samsung Electronics Co., Ltd. Methods and systems for handling conditional handover (CHO) in a wireless communication network
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US20210105690A1 (en) * 2019-10-03 2021-04-08 Google Llc Conditional handover management
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CN111034263B (zh) * 2019-11-25 2022-06-24 北京小米移动软件有限公司 信息传输方法、装置及通信设备
US11805456B2 (en) * 2019-12-20 2023-10-31 Intel Corporation Multiple trigger events based conditional handover in 5G NR networks
WO2021205407A1 (en) * 2020-04-09 2021-10-14 Telefonaktiebolaget Lm Ericsson (Publ) Handling of conditional reconfiguration delay
US12520219B2 (en) 2020-12-28 2026-01-06 Nec Corporation Methods, devices, and computer readable medium for communication
CN116998185A (zh) * 2021-04-02 2023-11-03 苹果公司 层1/层2小区间移动性的定时提前
CN115250487A (zh) * 2021-04-28 2022-10-28 华为技术有限公司 一种优化移动性能的方法及通信装置
US11778527B2 (en) * 2021-07-01 2023-10-03 Qualcomm Incorporated Reporting for conditional primary secondary cell addition or change
US20240334497A1 (en) * 2021-07-19 2024-10-03 Nokia Technologies Oy Enhanced contention-free random access (cfra) preamble assignment
US20240381212A1 (en) * 2021-08-05 2024-11-14 Nokia Technologies Oy Apparatus comprising at least one processor
WO2023115337A1 (en) * 2021-12-21 2023-06-29 Lenovo (Beijing) Limited Method and apparatus for wireless communication
WO2023117052A1 (en) * 2021-12-21 2023-06-29 Nokia Technologies Oy Ue positioning/location assisted conditional handover
CN118984476A (zh) * 2022-01-18 2024-11-19 Oppo广东移动通信有限公司 通信方法、终端设备及网络设备
WO2023137670A1 (en) * 2022-01-20 2023-07-27 Lenovo (Beijing) Limited Methods and apparatuses of a link management and mobility for ul aggregation
US12477416B2 (en) * 2022-07-12 2025-11-18 Qualcomm Incorporated Selection of an energy-saving cell for conditional handover
WO2024065673A1 (en) * 2022-09-30 2024-04-04 Apple Inc. Systems, methods, and devices for enhanced air-to-ground (atg) handover
CN116390181B (zh) * 2023-06-07 2023-09-15 武汉世炬信息技术有限公司 用户终端切换通信小区的切换方法及系统
WO2025027028A1 (en) 2023-08-02 2025-02-06 Continental Automotive Technologies GmbH Method for ntn conditional and rach-less handover
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Also Published As

Publication number Publication date
EP4462877A2 (en) 2024-11-13
EP3963943B1 (en) 2024-08-07
AU2020266435A1 (en) 2021-11-04
US20200351734A1 (en) 2020-11-05
US11012904B2 (en) 2021-05-18
EP4462877A3 (en) 2025-03-26
US12464568B2 (en) 2025-11-04
JP2025013457A (ja) 2025-01-24
US11849360B2 (en) 2023-12-19
BR112021020583A2 (pt) 2021-12-07
CN113748709A (zh) 2021-12-03
EP3963943A1 (en) 2022-03-09
SG11202110474RA (en) 2021-11-29
WO2020222904A1 (en) 2020-11-05
US20240049078A1 (en) 2024-02-08
KR20220002919A (ko) 2022-01-07
EP3963943C0 (en) 2024-08-07
JP2022530638A (ja) 2022-06-30
JP7585232B2 (ja) 2024-11-18
TWI833917B (zh) 2024-03-01
PH12021552401A1 (en) 2022-11-14
US20210282061A1 (en) 2021-09-09
TW202046768A (zh) 2020-12-16
US20260019890A1 (en) 2026-01-15

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