CA3073524C - Radio link monitoring and beam failure recovery resource configuration and operation - Google Patents

Radio link monitoring and beam failure recovery resource configuration and operation Download PDF

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Publication number
CA3073524C
CA3073524C CA3073524A CA3073524A CA3073524C CA 3073524 C CA3073524 C CA 3073524C CA 3073524 A CA3073524 A CA 3073524A CA 3073524 A CA3073524 A CA 3073524A CA 3073524 C CA3073524 C CA 3073524C
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Canada
Prior art keywords
link
resources
rlm
bfr
configuration
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Active
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CA3073524A
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English (en)
French (fr)
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CA3073524A1 (en
Inventor
Sumeeth Nagaraja
Tao Luo
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Qualcomm Inc
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Qualcomm Inc
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Publication date
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Publication of CA3073524A1 publication Critical patent/CA3073524A1/en
Application granted granted Critical
Publication of CA3073524C publication Critical patent/CA3073524C/en
Active legal-status Critical Current
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H04B7/06952—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • H04B7/06964—Re-selection of one or more beams after beam failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • 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
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/305—Handover due to radio link failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0005—Synchronisation arrangements synchronizing of arrival of multiple uplinks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)
CA3073524A 2017-09-11 2018-09-10 Radio link monitoring and beam failure recovery resource configuration and operation Active CA3073524C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201762557002P 2017-09-11 2017-09-11
US62/557,002 2017-09-11
US16/125,140 US11184080B2 (en) 2017-09-11 2018-09-07 Radio link monitoring and beam failure recovery resource configuration and operation
US16/125,140 2018-09-07
PCT/US2018/050181 WO2019051362A1 (en) 2017-09-11 2018-09-10 RADIO CONNECTION MONITORING AND CONFIGURATION AND OPERATION OF RECOVERY RESOURCE IN THE EVENT OF BEAM FAILURE

Publications (2)

Publication Number Publication Date
CA3073524A1 CA3073524A1 (en) 2019-03-14
CA3073524C true CA3073524C (en) 2023-09-26

Family

ID=65632245

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3073524A Active CA3073524C (en) 2017-09-11 2018-09-10 Radio link monitoring and beam failure recovery resource configuration and operation

Country Status (8)

Country Link
US (2) US11184080B2 (OSRAM)
EP (1) EP3682668B1 (OSRAM)
JP (1) JP7035168B2 (OSRAM)
KR (1) KR102357874B1 (OSRAM)
CN (1) CN111066344B (OSRAM)
BR (1) BR112020004671A2 (OSRAM)
CA (1) CA3073524C (OSRAM)
WO (1) WO2019051362A1 (OSRAM)

Families Citing this family (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10517002B2 (en) * 2017-07-20 2019-12-24 Qualcomm Incorporated User equipment (UE) indication of coverage mismatch between common search space (CSS) and user-specific search space (USS) for remaining minimum system information (RMSI) delivery
CN111149306A (zh) 2017-08-09 2020-05-12 Idac控股公司 用于波束恢复和管理的方法和系统
US11184080B2 (en) 2017-09-11 2021-11-23 Qualcomm Incorporated Radio link monitoring and beam failure recovery resource configuration and operation
ES3027659T3 (en) 2017-11-16 2025-06-16 Ericsson Telefon Ab L M Method for performing radio link monitoring
TWI672958B (zh) * 2017-11-24 2019-09-21 香港商鴻穎創新有限公司 無線通訊系統中用於波束故障恢復的裝置及方法
CN111684744B (zh) * 2018-01-04 2022-04-29 三星电子株式会社 半持久信道状态信息报告的方法、装置和计算机可读介质
US11419066B2 (en) * 2018-02-15 2022-08-16 Comcast Cable Communications, Llc Beam failure report
US11025348B2 (en) 2018-02-16 2021-06-01 Qualcomm Incorporated Default radio link monitoring reference signal (RLM-RS) determination procedure in new radio (NR)
WO2019192005A1 (en) * 2018-04-05 2019-10-10 Qualcomm Incorporated Radio link monitoring reference signal resource reconfiguration
CN110611933B (zh) * 2018-06-15 2021-06-01 维沃移动通信有限公司 一种链路质量监测方法及终端
CN110611921B (zh) * 2018-06-15 2021-06-01 维沃移动通信有限公司 一种无线链路状态判断方法及终端
CN112313985B (zh) * 2018-08-09 2024-12-31 富士通株式会社 无线链路检测方法、装置和通信系统
US10404339B1 (en) * 2018-08-09 2019-09-03 At&T Intellectual Property I, L.P. Precoding matrix indicator determination in wireless communication systems
US12149317B2 (en) * 2018-11-01 2024-11-19 Interdigital Patent Holdings, Inc. Beam failure recovery on a non-failed cell
CN111246499B (zh) * 2018-11-29 2022-05-24 华为技术有限公司 传输信息的方法和装置
CN111479333B (zh) * 2019-01-23 2022-09-02 华为技术有限公司 通信方法和通信装置
CN119363178A (zh) * 2019-02-01 2025-01-24 联想（新加坡）私人有限公司 侧链故障检测和恢复
CN113491155B (zh) * 2019-02-26 2023-07-07 Lg电子株式会社 基于服务小区质量的移动性条件的放宽
CN111757550B (zh) * 2019-03-28 2022-06-28 大唐移动通信设备有限公司 一种多载波直通链路管理方法及终端
CN113678482B (zh) * 2019-03-29 2024-02-02 联想(北京)有限公司 在侧链路上的无线电链路监视的方法和装置
CN113228726B (zh) * 2019-03-29 2024-06-07 苹果公司 利用细波束信道状态信息进行新无线电辅小区激活
CN111818591B (zh) * 2019-04-10 2022-02-25 华为技术有限公司 链路失败恢复的方法和装置
CN111866966B (zh) * 2019-04-29 2021-10-15 华为技术有限公司 通信方法和通信装置
EP3963912B1 (en) * 2019-05-02 2024-07-10 Fg Innovation Company Limited Method of sidelink unicast service management in access stratum layer and related device
CN113767713A (zh) * 2019-05-02 2021-12-07 索尼集团公司 用于处理波束故障的方法、基础设施设备和无线通信网络
US11979932B2 (en) * 2019-05-10 2024-05-07 Qualcomm Incorporated Radio link maintenance for sidelink wireless communications
US11363602B2 (en) * 2019-06-27 2022-06-14 Qualcomm Incorporated Triggering resource allocation configuration switching for sidelink communications
EP3981091B1 (en) * 2019-07-10 2024-08-07 Apple Inc. Radio link monitoring (rlm) for unicast sidelink (sl) communications
US11252017B2 (en) * 2019-07-22 2022-02-15 At&T Intellectual Property I, L.P. Facilitating management of secondary cell group failures in fifth generation (5G) or other advanced networks
KR102640671B1 (ko) * 2019-08-05 2024-02-27 엘지전자 주식회사 무선통신시스템에서 신호 송수신 방법
CN112351451B (zh) * 2019-08-09 2022-10-04 华为技术有限公司 波束失败恢复方法及装置
US11445391B2 (en) * 2019-08-16 2022-09-13 FG Innovation Company Limited Method and apparatus for radio link monitoring
US11477705B2 (en) * 2019-08-21 2022-10-18 Lenovo (Singapore) Pte. Ltd. Radio link failure recovery
US12328785B2 (en) * 2019-08-29 2025-06-10 Qualcomm Incorporated Handling of sidelink radio link failure
CN112584392B (zh) * 2019-09-30 2022-09-23 上海华为技术有限公司 一种无线广播波束覆盖增强方法和装置
US11863373B2 (en) * 2019-10-03 2024-01-02 FG Innovation Company Limited Method and user equipment for beam failure recovery procedure
US12382317B2 (en) * 2019-10-04 2025-08-05 Qualcomm Incorporated Joint failure of component carrier (CC) groups
CN114451005B (zh) * 2019-10-14 2024-07-09 华为技术有限公司 链路失败检测的方法和装置
KR20210047241A (ko) * 2019-10-21 2021-04-29 엘지전자 주식회사 무선통신시스템에서 rlf에 관련된 단말의 동작 방법
EP4057676A4 (en) * 2019-11-08 2022-11-16 Guangdong Oppo Mobile Telecommunications Corp., Ltd. LINK QUALITY MONITORING PROCEDURE AND RELATED PRODUCT
WO2021092939A1 (zh) 2019-11-15 2021-05-20 华为技术有限公司 一种通信方法及装置
US11997664B2 (en) * 2019-11-26 2024-05-28 Qualcomm Incorporated Beam failure detection and recovery for high priority or broadcast coreset
US12401403B2 (en) 2020-01-27 2025-08-26 Qualcomm Incorporated Antenna group-specific parameter configuration in millimeter wave communications
US12407385B2 (en) 2020-01-27 2025-09-02 Qualcomm Incorporated Signaling of beam correlation across millimeter wave frequency bands
US20210234597A1 (en) * 2020-01-27 2021-07-29 Qualcomm Incorporated Asymmetric uplink-downlink beam training in frequency bands
WO2021154655A1 (en) 2020-01-27 2021-08-05 Qualcomm Incorporated Antenna group selection and indication in frequency bands
US11831383B2 (en) * 2020-01-27 2023-11-28 Qualcomm Incorporated Beam failure recovery assistance in upper band millimeter wave wireless communications
KR20210098128A (ko) * 2020-01-31 2021-08-10 삼성전자주식회사 무선 통신 시스템에서 사이드링크 보조 캐리어를 제어하는 장치 및 방법
US12374787B2 (en) 2020-02-11 2025-07-29 Qualcomm Incorporated Adjusting communications operations for changes to configurations for quasi co-location and number of antenna elements
US11601831B2 (en) * 2020-03-05 2023-03-07 Qualcomm Incorporated Switching reference signals for beam or link failure detection
WO2021229545A1 (en) * 2020-05-15 2021-11-18 Lenovo (Singapore) Pte. Ltd. Indicating a beam failure detection reference signal
US12323218B2 (en) * 2020-05-26 2025-06-03 Qualcomm Incorporated Beam failure recovery techniques for multiple transmission-reception points in a secondary cell
US11924902B2 (en) * 2020-07-02 2024-03-05 Qualcomm Incorporated Directional sidelink (SL) beam failure detection
PH12022552976A1 (en) * 2020-07-03 2024-02-26 Qualcomm Inc Techniques for mitigating redundant beam failure recovery medium access signaling
US12301496B2 (en) * 2020-07-16 2025-05-13 Qualcomm Incorporated Uplink composite beam synthesis
US12047794B2 (en) * 2020-07-17 2024-07-23 Qualcomm Incorporated Techniques for bi-directional sidelink beam failure detection
US11930550B2 (en) * 2020-08-05 2024-03-12 Acer Incorporated Equipment for beam failure reporting and beam failure reporting method
JP2023536723A (ja) * 2020-08-05 2023-08-29 インターデイジタル パテント ホールディングス インコーポレイテッド ビーム障害回復のための方法及び装置
US11659422B2 (en) 2021-06-02 2023-05-23 Apple Inc. Mechanisms for radio link failure (RLF) reporting to network
CN115943656B (zh) * 2021-06-07 2025-10-21 苹果公司 协调链路监测和链路恢复
EP4360355A4 (en) * 2021-06-21 2025-02-12 QUALCOMM Incorporated ROBUST RADIO LINK MONITORING METHOD
WO2023040921A1 (zh) * 2021-09-18 2023-03-23 上海朗帛通信技术有限公司 一种被用于无线通信的节点中的方法和装置
CN116208305B (zh) * 2021-11-30 2025-11-28 上海朗帛通信技术有限公司 一种被用于无线通信的通信节点中的方法和装置
CN116208988A (zh) * 2021-11-30 2023-06-02 华为技术有限公司 用于传输信息的方法和通信装置
WO2023133739A1 (zh) * 2022-01-12 2023-07-20 Oppo广东移动通信有限公司 无线通信的方法、终端设备和网络设备
WO2023155115A1 (en) * 2022-02-18 2023-08-24 Qualcomm Incorporated Techniques for cross-frequency range predictive beam failure detection
CN119054407A (zh) * 2022-04-22 2024-11-29 高通股份有限公司 与波束故障恢复相关联的功率控制参数重置
CN115119241B (zh) * 2022-06-21 2024-05-14 电子科技大学 一种无线传感器网络链路故障检测方法
WO2025086738A1 (en) * 2024-07-17 2025-05-01 Lenovo (Beijing) Limited Radio link monitoring or beam failure recovery

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3761750A1 (en) * 2009-03-12 2021-01-06 Interdigital Patent Holdings, Inc. Method and apparatus for monitoring for a radio link failure
US8755753B2 (en) 2010-10-29 2014-06-17 Samsung Electronics Co., Ltd. Apparatus and method for channel measurement in radio link monitoring in a wireless network
US8995366B2 (en) 2012-03-23 2015-03-31 Google Technology Holdings LLC Radio link monitoring in a wireless communication device for a enhanced control channel
US8976698B2 (en) 2012-08-09 2015-03-10 Qualcomm Incorporated Methods and apparatus for radio link monitoring in new carrier type (NCT) in a long term evolution (LTE) system
CN109510697B (zh) 2013-07-04 2021-07-06 韩国电子通信研究院 处理无线电链路故障的方法
CN105830485B (zh) 2014-06-17 2019-10-15 华为技术有限公司 一种无线链路监测方法及ue
US10285028B2 (en) 2016-02-05 2019-05-07 Qualcomm Incorporated Adaptive radio link monitoring
EP3535855B1 (en) * 2016-11-04 2024-02-21 Telefonaktiebolaget LM Ericsson (publ) Methods and apparatuses for handling beam failure
RU2738821C1 (ru) * 2017-05-05 2020-12-17 Телефонактиеболагет Лм Эрикссон (Пабл) Оборудование пользователя, базовая станция и способы в сети радиосвязи
US10516465B2 (en) * 2017-09-11 2019-12-24 Mediatek Inc. Harmonized operation between radio link monitor and beam failure recovery
US11184080B2 (en) 2017-09-11 2021-11-23 Qualcomm Incorporated Radio link monitoring and beam failure recovery resource configuration and operation
WO2019048934A1 (en) * 2017-09-11 2019-03-14 Lenovo (Singapore) Pte. Ltd. REFERENCE SIGNALS FOR RADIO LINK MONITORING

Also Published As

Publication number Publication date
JP7035168B2 (ja) 2022-03-14
WO2019051362A1 (en) 2019-03-14
CN111066344B (zh) 2021-12-31
US11184080B2 (en) 2021-11-23
JP2020533884A (ja) 2020-11-19
CN111066344A (zh) 2020-04-24
US20190081691A1 (en) 2019-03-14
EP3682668A1 (en) 2020-07-22
BR112020004671A2 (pt) 2020-09-15
CA3073524A1 (en) 2019-03-14
EP3682668B1 (en) 2023-04-12
US20220077917A1 (en) 2022-03-10
US11722204B2 (en) 2023-08-08
KR102357874B1 (ko) 2022-02-08
KR20200051612A (ko) 2020-05-13

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