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1. 发明授权

US11039357B2 Handover method in mobile communication system 有权
公开(公告)号：US11039357B2
公开(公告)日：2021-06-15
申请号：US15984159
申请日：2018-05-18
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Hyun Seo Park , Hyun Lee , Tae Joong Kim , Hee Soo Lee , Yu Ro Lee , Eun Kyung Kim , An Seok Lee
IPC分类号： H04W36/08 , H04W36/00 , H04W74/08 , H04B7/06 , H04W88/08
摘要： An operation method of a terminal, for a handover in a mobile communication system, may comprise performing measurement on beams of a target base station, and transmitting a measurement result of at least one beam of the target base station to a source base station; receiving, from the source base station, a handover command message including information on at least one RACH resource for the at least one beam; transmitting a handover indication message including information on at least one random access target beam having an order of channel conditions determined based on a latest measurement to the source base station and to the target base station through the source base station; and determining an optimal beam among the at least one random access target beam, and transmitting a RACH to the target base station through a RACH resource allocated to the optimal beam.

2. 发明授权

US10945168B2 Handover method 有权
公开(公告)号：US10945168B2
公开(公告)日：2021-03-09
申请号：US16082599
申请日：2017-04-19
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Hyun Seo Park
IPC分类号： H04W36/00 , H04L1/00 , H04W36/02 , H04W36/38 , H04W36/08 , H04W36/18 , H04W76/27 , H04W56/00 , H04L5/00 , H04W40/36 , H04W36/36 , H04L1/18 , H04W80/08
摘要： A UE receives a handover command from a source eNB, and transmits a handover indication message to the source eNB while maintaining a connection to the source eNB. After transmitting the handover indication message, the UE disconnects the connection to the source eNB. Further, the UE accesses to a target eNB. A handover command includes information indicating timing advance if a handover without a random access procedure is configured.

3. 发明授权

US09693268B2 Method of handover in mobile communication system 有权
公开(公告)号：US09693268B2
公开(公告)日：2017-06-27
申请号：US14699729
申请日：2015-04-29
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Hyun Seo Park , Yong Seouk Choi
IPC分类号： H04W4/00 , H04W36/00 , H04W24/10 , H04W36/08 , H04W36/30
CPC分类号： H04W36/0055 , H04W24/10 , H04W36/08 , H04W36/30
摘要： A terminal starts a first timer for detecting an RLF (Radio Link Failure) when signal strength of a serving base station is lower than a reference value. The terminal triggers a handover without a TTT (Time to Trigger) for handover when signal strength of a target base station is greater than the signal strength of the serving base station by a first offset or more while the first timer is running. The terminal transmits a measurement report message regarding the signal strength of the target base station to the serving base station when a handover is triggered.

4. 发明授权

US09497683B2 Handover method and apparatus 有权
标题翻译：切换方法和装置
公开(公告)号：US09497683B2
公开(公告)日：2016-11-15
申请号：US14417012
申请日：2013-07-24
申请人： Electronics and Telecommunications Research Institute
发明人： Hyun Seo Park , Sung-Min Oh , Ae-Soon Park , Eunah Kim , Sook Yang Kang , JaeSheung Shin , Pyeong Jung Song
IPC分类号： H04W36/24 , H04W36/08 , H04W36/30 , H04W36/36
CPC分类号： H04W36/24 , H04W36/08 , H04W36/30 , H04W36/36
摘要： A UE does not immediately perform handover after receiving a handover command from a serving base station, but instead backups that message and continuously compares the signal strength of a serving base station and the signal strength of a target base station and performs a handover to the target base station at the best timing when handover is required. Once the timing of handover is determined, the UE transmits a handover indication message to the serving base station, and thereafter the UE performs a handover to the target base station.
摘要翻译：在从服务基站接收到切换命令之后，UE不立即执行切换，而是备份该消息，并且连续地比较服务基站的信号强度和目标基站的信号强度并执行到目标的切换基站需要切换时的最佳时间。一旦确定了切换的定时，则UE向服务基站发送切换指示消息，此后，UE对目标基站进行切换。

5. 发明授权

US09078176B2 System and method for multi-hierarchical cell configuration 有权
标题翻译：多层次单元配置的系统和方法
公开(公告)号：US09078176B2
公开(公告)日：2015-07-07
申请号：US13631486
申请日：2012-09-28
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Pyeong Jung Song , Hyun Seo Park , Seung Chan Bang
IPC分类号： H04W36/00 , H04W28/00 , H04W72/00 , H04W84/00 , H04W4/04 , H04W84/04 , H04W28/06
CPC分类号： H04W36/0055 , H04W4/046 , H04W28/06 , H04W72/00 , H04W84/005 , H04W84/045
摘要： Provided is a system and method for configuring a multi-hierarchical cell in which a large-scale mobile backhaul technology and a small cell technology are combined. A mobile backhaul may increase a transmission capacity of a wireless backhaul using a super high frequency (SHF)/extremely high frequency (EHF) band, rather than a cellular band having a limitation in extending frequency resources, and a small group cell to be formed at a final end of the mobile backhaul may be configured by fixed group cells or mobile group cells depending on a radio environment, using a moving relay, wireless fidelity (WiFi), femto-cells, and the like, whereby cells may be miniaturized effectively, and a relatively great capacity of a wireless system may be provided to a subscriber.
摘要翻译：提供了一种用于配置其中组合大规模移动回程技术和小型小区技术的多层小区的系统和方法。移动回程可以增加使用超高频（SHF）/极高频（EHF）频带的无线回程的传输容量，而不是扩展频率资源的限制的蜂窝频带以及要形成的小组小区在移动回程的最终端可以由固定组小区或移动组小区根据无线电环境，使用移动中继，无线保真（WiFi），毫微微小区等来配置，从而可以有效地小区化，并且可以向订户提供无线系统的相对较大的容量。

6. 发明授权

US10230514B2 Method and apparatus for synchronized handover in mobile communication system 有权
公开(公告)号：US10230514B2
公开(公告)日：2019-03-12
申请号：US15341664
申请日：2016-11-02
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Hyun Seo Park
IPC分类号： H04W36/02 , H04L5/00 , H04W76/27 , H04W36/00
摘要： A method and an apparatus for synchronized handover in a mobile communication system are provided. A source base station providing data to a terminal transmits a handover command message for handover to a target base station to the terminal, and interrupts transmission of data to the terminal when the source base station receives a message for informing a handover execution timing from the terminal later. In addition, the source base station forwards data on the terminal to the target base station.

7. 发明授权

US11129173B2 Method and apparatus for transmitting sidelink feedback information 有权
公开(公告)号：US11129173B2
公开(公告)日：2021-09-21
申请号：US16557164
申请日：2019-08-30
申请人： Electronics and Telecommunications Research Institute
发明人： Yun Joo Kim , Yu Ro Lee , EunKyung Kim , Tae Joong Kim , Hyun Seo Park , An Seok Lee , Sung Cheol Chang
IPC分类号： H04W72/12 , H04W92/18
摘要： A device-to-device (D2D) communication method, performed by a receiving D2D terminal, may comprise receiving D2D data from a transmitting D2D terminal; generating feedback information for the D2D data; and receiving information on a first resource for transmission of the feedback information from a base station, and transmitting the feedback information to the transmitting D2D terminal through the first resource, wherein the information on the first resource is received without an explicit scheduling request (SR) to the base station.

8. 发明授权

US10827398B2 Communication node for performing handover in wireless communication system and method therefor 有权
公开(公告)号：US10827398B2
公开(公告)日：2020-11-03
申请号：US16040926
申请日：2018-07-20
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Hyun Seo Park , Eun Kyung Kim , Tae Joong Kim , An Seok Lee , Yu Ro Lee , Hyun Lee , Hee Soo Lee
IPC分类号： H04W36/00 , H04W36/30
摘要： An operation method of a terminal includes receiving configuration information from a serving base station; measuring channel states of the serving base station and a target base station; when a difference between received signal strengths of the serving base station and the target base station is not less than a handover preparation offset, determining that a handover preparation event has occurred and transmitting a measurement report message to the serving base station; and when the difference is equal to or greater than a handover execution offset, determining that a handover execution event has occurred and transmitting a handover indication message informing of execution of a handover to the target base station. The channel state is normal state, abnormal state, or RLF state, and the configuration information indicates a different handover preparation offset and a different handover execution event according to the channel state.

9. 发明申请

US20160191212A1 METHOD OF RE-TRANSMITTING DATA AND ELECTRONIC DEVICE THEREFOR 审中-公开
标题翻译：重新发送数据的方法及其电子设备
公开(公告)号：US20160191212A1
公开(公告)日：2016-06-30
申请号：US14982122
申请日：2015-12-29
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Hyun Seo Park , Yong Seouk Choi
IPC分类号： H04L1/18
CPC分类号： H04L1/1816 , H04L1/1848 , H04L1/1877
摘要： Disclosed is a first electronic device and the first electronic device includes: a transmitter transmitting data to a second electronic device; a receiver receiving a feed-back (hereinafter, referred to as a first feed-back) for the transmitted data from the second electronic device; and a processor deciding whether to transmit the data again or another data to the second electronic device, based on the first feed-back, in which when the first feed-back is negative, the transmitter retransmits the data under a predetermined condition, and when a feed-back (hereinafter, referred to as a second feed-back) received from the second electronic device is negative with respect to the data retransmitted under the predetermined condition, the transmitter re-retransmits at least a part of the data to the second electronic device.
摘要翻译：公开了第一电子设备，并且第一电子设备包括：发射机向第二电子设备发送数据; 接收从第二电子设备发送的数据的反馈（以下称为第一反馈）的接收机; 以及处理器，其基于所述第一反馈来决定是否再次发送所述数据还是另一数据到所述第二电子设备，其中当所述第一反馈为负时，所述发送器在预定条件下重新发送所述数据，并且当从第二电子设备接收到的反馈（以下称为第二反馈）相对于在预定条件下重传的数据为负，发送器将至少一部分数据重新发送到第二个电子设备。

10. 发明授权

US10834749B2 Method for bandwidth part management in communication system and apparatus for the same 有权
公开(公告)号：US10834749B2
公开(公告)日：2020-11-10
申请号：US16277228
申请日：2019-02-15
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Eunkyung Kim , Tae Joong Kim , Hyun Seo Park , An Seok Lee , Yu Ro Lee , Hyun Lee
IPC分类号： H04W72/12 , H04W72/04 , H04L27/26 , H04W76/27
摘要： An operation method of a terminal in a communication system includes receiving bandwidth part (BWP) change information from a base station in a BWP i; changing an operation BWP of the terminal from the BWP i to a BWP j even when a transmission and reception procedure of first data in the BWP i is not completed at a BWP changing point indicated by the BWP change information; and performing a data transmission and reception procedure of second data in the BWP j, wherein the BWP i and the BWP j are different BWPs, and i and j are different integers.

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