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    Multi-channel low power communication method and apparatus
    1.
    发明授权
    Multi-channel low power communication method and apparatus 有权
    多通道低功率通讯方式及装置

    公开(公告)号：US09456418B2

    公开(公告)日：2016-09-27

    申请号：US14487003

    申请日：2014-09-15

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Il Gu Lee ,  Jung Bo Son ,  Hee Soo Lee ,  Sok Kyu Lee

    IPC: H04W52/02 ,  H04W74/08

    CPC classification number: H04W52/0235 ,  H04W74/0816 ,  Y02D70/00 ,  Y02D70/142

    Abstract: A multi-channel low power communication method and apparatus are provided. The multi-channel low power communication method may include transmitting request to send (RTS) to a receiver through a plurality of communication channels, receiving clear to send (CTS) from the receiver in response to the RTS, and transmitting a data packet through part or entire of at least one communication channel having received the CTS among the plurality of communication channels, wherein at least one of the RTS and the CTS comprises a multi-channel power save information field related to multi-channel power save.

    Abstract translation: 提供了一种多通道低功率通信方法和装置。 多信道低功率通信方法可以包括通过多个通信信道发送（RTS）到接收机的请求，响应于RTS从接收机接收清除发送（CTS），并通过部分发送数据分组 或者在多个通信信道中已经接收到CTS的至少一个通信信道的整体，其中RTS和CTS中的至少一个包括与多信道功率节省相关的多信道功率节省信息字段。

    Communication node for performing handover in wireless communication system and method therefor
    2.
    发明授权
    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

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Hyun Seo Park ,  Eun Kyung Kim ,  Tae Joong Kim ,  An Seok Lee ,  Yu Ro Lee ,  Hyun Lee ,  Hee Soo Lee

    IPC: H04W36/00 ,  H04W36/30

    Abstract: 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.

    Handover method in mobile communication system
    7.
    发明授权
    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

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Hyun Seo Park ,  Hyun Lee ,  Tae Joong Kim ,  Hee Soo Lee ,  Yu Ro Lee ,  Eun Kyung Kim ,  An Seok Lee

    IPC: H04W36/08 ,  H04W36/00 ,  H04W74/08 ,  H04B7/06 ,  H04W88/08

    Abstract: 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.

    Multi-channel low power communication method and apparatus
    8.
    发明授权
    Multi-channel low power communication method and apparatus 有权

    公开(公告)号：US10123274B2

    公开(公告)日：2018-11-06

    申请号：US15247596

    申请日：2016-08-25

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Il Gu Lee ,  Jung Bo Son ,  Hee Soo Lee ,  Sok Kyu Lee

    IPC: H04W52/02 ,  H04W74/08

    Abstract: A multi-channel low power communication method and apparatus are provided. The multi-channel low power communication method may include transmitting request to send (RTS) to a receiver through a plurality of communication channels, receiving clear to send (CTS) from the receiver in response to the RTS, and transmitting a data packet through part or entire of at least one communication channel having received the CTS among the plurality of communication channels, wherein at least one of the RTS and the CTS comprises a multi-channel power save information field related to multi-channel power save.

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