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    Carrier aggregation apparatus for efficiently utilizing frequency resource of license band and shareable bands, and operation method thereof
    1.
    发明授权
    Carrier aggregation apparatus for efficiently utilizing frequency resource of license band and shareable bands, and operation method thereof 有权
    用于有效利用许可频带和可共享频带的频率资源的载波聚合装置及其操作方法

    公开(公告)号：US09191963B2

    公开(公告)日：2015-11-17

    申请号：US13898556

    申请日：2013-05-21

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Jae Cheol Park ,  Sung Hyun Hwang ,  Byung Jang Jeong ,  Jae Hyun Park ,  Jae Ick Choi

    IPC: H04L27/00 ,  H04W72/08 ,  H04L5/00 ,  H04W72/04

    CPC classification number: H04W72/085 ,  H04L5/001 ,  H04L5/006 ,  H04L27/0006 ,  H04W72/0453 ,  H04W72/087

    Abstract: An exemplary embodiment provides a carrier aggregation apparatus including: a level assignment manager configured to perform management by classifying a license band allocated to a cognitive radio cell into a primary radio resource (PRR) level, and by classifying a shareable band obtained through a cognitive radio database or spectrum sensing into an auxiliary radio resource (ARR) level; a determiner configured to determine a quality of service (QoS) level of a communication service provided to the cognitive radio cell; and a service provider configured to allocate a frequency resource of the PRR level when the QoS level requires a first communication service, and to allocate a frequency resource of the ARR level when the QoS level requires a second communication service lower than the first communication service.

    Abstract translation: 一种示例性实施例提供了一种载波聚合装置，包括：级别分配管理器，被配置为通过将分配给认知无线电小区的许可证频带分类为主无线电资源（PRR）级别并通过将通过认知无线电获得的可共享频带进行分类来执行管理 数据库或频谱感测成辅助无线电资源（ARR）级别; 被配置为确定提供给所述认知无线电小区的通信服务的服务质量（QoS）级别的确定器; 以及服务提供器，被配置为当QoS级别需要第一通信服务时分配PRR级别的频率资源，并且当QoS级别要求低于第一通信服务的第二通信服务时，分配ARR级别的频率资源。

    Method and apparatus for low power communication in communication system
    3.
    发明授权
    Method and apparatus for low power communication in communication system 有权

    公开(公告)号：US11134444B2

    公开(公告)日：2021-09-28

    申请号：US16506831

    申请日：2019-07-09

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Sung Hyun Hwang ,  Kyu Min Kang ,  Sung Jin Yoo ,  Su Na Choi ,  Jae Cheol Park ,  Yong Ho Kim

    IPC: H04J3/06 ,  H04W52/02 ,  H04W76/27

    Abstract: Disclosed are a low-power communication method and a low-power communication apparatus in a communication system. A low-power station may comprise a processor; a memory storing at least one instruction executable by the processor; a receiver for receiving a WUR PPDU according to the at least one instruction; and a transceiver for transmitting and receiving a legacy PPDU according to the at least one instruction, and the at least one instruction may be configured to cause the receiver to receive a WUR wake-up frame from the access point in an on-duration within a WUR duty cycle period; when the WUR wake-up frame is received, cause the processor to transmit a first signal requesting wake-up to the transceiver; and when the first signal is received, cause the transceiver to transition from a sleep state to a wake-up state at a TWT configured between the access point and the low-power station.

    Methods and an apparatus for carrier aggregation
    4.
    发明授权
    Methods and an apparatus for carrier aggregation 有权
    载体聚集方法和装置

    公开(公告)号：US09553710B2

    公开(公告)日：2017-01-24

    申请号：US14524448

    申请日：2014-10-27

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Sung Hyun Hwang ,  Sung Jin Yoo ,  Jung Sun Um ,  Byung Jang Jeong ,  Jae Ick Choi

    IPC: H04W72/08 ,  H04L5/00

    CPC classification number: H04L5/0062 ,  H04L5/001

    Abstract: Provided herein is a method and apparatus for heterogeneous carrier aggregation, the method including calculating interferences regarding a plurality of interference paths between an adjacent cell and serving cell; determining weighted values for the plurality of interference paths in the serving cell; calculating an accumulated value (accumulated margin or accumulated interference) regarding the plurality of interference paths based on the weighted values in the serving cell; determining a component carrier to be used in the carrier aggregation based on the accumulated value calculated in the serving cell; and performing the carrier aggregation based on the component carrier determined.

    Abstract translation: 本文提供了一种用于异构载波聚合的方法和装置，所述方法包括：计算关于相邻小区和服务小区之间的多个干扰路径的干扰; 确定所述服务小区中的所述多个干扰路径的加权值; 基于所述服务小区中的加权值来计算关于所述多个干扰路径的累积值（累积容限或累积干扰）; 基于在所述服务小区中计算出的累计值，确定要在所述载波聚合中使用的分量载波; 以及基于所确定的分量载波来执行载波聚合。

    Hidden node detection method and apparatus in wireless communication system
    5.
    发明授权
    Hidden node detection method and apparatus in wireless communication system 有权
    无线通信系统中的隐藏节点检测方法及装置

    公开(公告)号：US09532381B2

    公开(公告)日：2016-12-27

    申请号：US14461124

    申请日：2014-08-15

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Sung Jin Yoo ,  Jin Suk Pak ,  Byung Jang Jeong ,  Sung Hyun Hwang

    IPC: H04W4/00 ,  H04W74/08

    CPC classification number: H04W74/0816

    Abstract: Provided is a hidden node detection method and apparatus in a wireless communication system, the apparatus including a sensing unit to sense a first communication device transmitting a data signal from among a plurality of communication devices sharing a wireless channel, a transmitter to generate a reception notification signal in response to the sensing, and transmit the reception notification signal to the a plurality of communication devices through a band identical to a transmission band of the data signal, and a controller to prevent a collision with the data signal transmitted from the first communication device through the wireless channel by delaying processing of a data transmission request when the data transmission request is input from a second communication device among the plurality of communication devices while maintaining the transmitting of the reception notification signal.

    Abstract translation: 提供了一种无线通信系统中的隐藏节点检测方法和装置，该装置包括：感测单元，用于感测从共享无线信道的多个通信设备中发送数据信号的第一通信设备;发送器，用于生成接收通知 信号，并且通过与数据信号的传输频带相同的频带向多个通信设备发送接收通知信号;以及控制器，用于防止与从第一通信设备发送的数据信号的冲突 在保持发送接收通知信号的同时，在多个通信装置中从第二通信装置输入数据发送请求时，通过延迟数据发送请求的处理，通过无线信道。

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