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    Method for radio resource management in device-to-device communication
    51.
    发明授权
    Method for radio resource management in device-to-device communication 有权
    设备到设备通信中无线电资源管理的方法

    公开(公告)号：US09215693B2

    公开(公告)日：2015-12-15

    申请号：US13667576

    申请日：2012-11-02

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Jae Young Ahn ,  Choong Il Yeh

    IPC: H04W72/04 ,  H04W8/26 ,  H04W76/02

    CPC classification number: H04W72/04 ,  H04W8/26 ,  H04W76/14 ,  Y02D70/21

    Abstract: Provided is a radio resource management method for device-to-device communication. The resource management method for device-to-device communication includes dividing a plurality of connection identifiers (CIDs) into N (N is a natural number) number of groups, dividing the resources for device-to-device communication into N number of sub-bands corresponding to the N number of groups, and allocating resources by mapping CIDs respectively belonging to the N number of groups to resources of sub-bands respectively corresponding to the groups. Therefore, according to the resource management method, by dividing the whole frequency band into a plurality of sub-bands, a communication range may be extended, a low-power device may be accommodated, granularity of resources may be improved, and flexibility of resource management may be obtained.

    Abstract translation: 提供了一种用于设备到设备通信的无线电资源管理方法。 用于设备到设备的通信的资源管理方法包括将多个连接标识符（CID）划分为N（N个是自然数）个组，将用于设备到设备的通信的资源划分为N个子集， 对应于N个组的频带，以及通过将分别属于N个组的CID映射到分组对应的子带的资源来分配资源。 因此，根据资源管理方法，通过将整个频带划分为多个子带，可以扩展通信范围，可以容纳低功率设备，可以提高资源的粒度和资源的灵活性 可以获得管理。

    Method and apparatus for transmission and reception in multi-carrier wireless communication systems
    52.
    发明授权
    Method and apparatus for transmission and reception in multi-carrier wireless communication systems 有权
    用于多载波无线通信系统中的发送和接收的方法和装置

    公开(公告)号：US09198175B2

    公开(公告)日：2015-11-24

    申请号：US14087928

    申请日：2013-11-22

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Young Jo Ko ,  Bang Won Seo ,  Jae Young Ahn

    IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04W88/02 ,  H04W88/08 ,  H04L1/00

    CPC classification number: H04W72/042 ,  H04L1/0045 ,  H04L1/0061 ,  H04L5/001 ,  H04L5/0053 ,  H04W4/00 ,  H04W72/046 ,  H04W88/02 ,  H04W88/08

    Abstract: Data transmission and reception is provided by configuring control channels in a wireless communication system using a plurality of carriers. User equipment (UE) may monitor physical downlink control channel (PDCCH) candidates within common search spaces (CSSs) and User Equipment-specific search spaces (USSs). If the UE is configured with cross-carrier scheduling, when two PDCCH candidates originating from a CSS and a USS, respectively, have cyclic redundancy check (CRC) scrambled by the same Radio Network Temporary Identifier (RNTI) and have a common payload size and the same first control channel element (CCE) index, the UE may interpret that only the PDCCH originating from the CSS is transmitted, thereby solving ambiguity of downlink control information (DCI) detection.

    Abstract translation: 通过在使用多个载波的无线通信系统中配置控制信道来提供数据发送和接收。 用户设备（UE）可以监视公共搜索空间（CSS）和用户设备特定搜索空间（USS）内的物理下行链路控制信道（PDCCH）候选。 如果UE配置了跨载波调度，则当分别来自CSS和USS的两个PDCCH候选分别具有由同一无线电网络临时标识符（RNTI）加扰并且具有公共有效负载大小的循环冗余校验（CRC） 相同的第一控制信道单元（CCE）索引，则UE可以解释仅发送来自CSS的PDCCH，从而解决下行链路控制信息（DCI）检测的模糊性。

    Method for transmitting and receiving control channel in wireless communication system
    53.
    发明授权
    Method for transmitting and receiving control channel in wireless communication system 有权
    无线通信系统中发送和接收控制信道的方法

    公开(公告)号：US09185691B2

    公开(公告)日：2015-11-10

    申请号：US13630956

    申请日：2012-09-28

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Tae Gyun Noh ,  Jae Young Ahn

    IPC: H04W72/04 ,  H04L5/00

    CPC classification number: H04W72/042 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/0094 ,  H04W76/27 ,  H04W88/08

    Abstract: Provided is a communication system that transmits a control channel using a downlink. The communication system may transmit, to the terminal, transmission information of uplink allocation information that indicates whether uplink allocation information is transmitted using a downlink, and the terminal may determine whether the uplink allocation information is included in a downlink frame, based on the transmission information of uplink allocation information. The base station may transmit, to the terminal, information associated with a resource which has a possibility of being used for transmission of a physical downlink control channel (PDCCH), and the terminal may decode the PDCCH in the resource which has a possibility of being used for transmission of the PDCCH.

    Abstract translation: 提供了使用下行​​链路发送控制信道的通信系统。 通信系统可以向终端发送指示是否使用下行链路发送上行链路分配信息的上行链路分配信息的发送信息，并且终端可以基于发送信息来确定上行链路分配信息是否包括在下行链路帧中 的上行分配信息。 基站可以向终端发送与具有用于物理下行链路控制信道（PDCCH）的传输的可能性的资源相关联的信息，并且终端可以解码资源中具有可能性的PDCCH 用于传输PDCCH。

    Method for generating and transmitting a reference signal for uplink demodulation in a clustered DFT-spread OFDM transmission scheme
    55.
    发明授权
    Method for generating and transmitting a reference signal for uplink demodulation in a clustered DFT-spread OFDM transmission scheme 有权
    用于在聚集的DFT扩展OFDM传输方案中生成和发送用于上行链路解调的参考信号的方法

    公开(公告)号：US09025684B2

    公开(公告)日：2015-05-05

    申请号：US14031844

    申请日：2013-09-19

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Byung Jang Jeong ,  Young Jo Ko ,  Bang-Won Seo ,  Jae Young Ahn

    IPC: H04L5/00

    CPC classification number: H04L5/0048 ,  H04L5/0007 ,  H04L27/2607 ,  H04L27/265 ,  H04W72/0413

    Abstract: Disclosed is a method for generating and transmitting a reference signal in a clustered DFT-spread OFDM transmission scheme. A method for generating and transmitting a DM-RS in a clustered DFT-spread-OFDM scheme comprises: a step of generating DM-RS sequences corresponding to the number of clusters allocated for an uplink transmission; and a step of mapping the generated DM-RS sequences to the relevant DM-RS symbol positions for each cluster. Accordingly, the method for generating and transmitting a reference signal according to the present invention, in which DM-RS sequences are allocated and transmitted on a cluster basis, uses a complete DM-RS sequence for each cluster, and therefore inter-cell interference can be weakened, and problems which might occur when applied to a multi-user MIMO (MU-MIMO) scheme can be solved.

    Abstract translation: 公开了一种用于在聚集的DFT扩展OFDM传输方案中产生和发送参考信号的方法。 一种用于在聚簇DFT扩展OFDM方案中产生和发送DM-RS的方法包括：产生对应于为上行链路传输分配的簇数量的DM-RS序列的步骤; 以及将生成的DM-RS序列映射到每个簇的相关DM-RS符号位置的步骤。 因此，根据本发明的基于簇分配和发送DM-RS序列的参考信号的生成和发送方法对于每个簇使用完整的DM-RS序列，因此小区间干扰可以 被削弱，并且可以解决当应用于多用户MIMO（MU-MIMO）方案时可能出现的问题。

    METHOD AND APPARATUS FOR COMMUNICATION IN MILLIMETER WAVE MIMO COMMUNICATION ENVIRONMENT
    56.
    发明申请
    METHOD AND APPARATUS FOR COMMUNICATION IN MILLIMETER WAVE MIMO COMMUNICATION ENVIRONMENT 审中-公开
    用于在毫米波MIMO通信环境中通信的方法和装置

    公开(公告)号：US20150103934A1

    公开(公告)日：2015-04-16

    申请号：US14514569

    申请日：2014-10-15

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Junyoung Nam ,  Juho Park ,  Jae Young Ahn

    IPC: H04L27/26

    CPC classification number: H04B7/0413 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0639 ,  H04B7/066

    Abstract: A method and apparatus for communication in millimeter wave multiple input multiple output (MIMO) communication are provided. A beamforming matrix by groups for terminals that are classified into a group is generated, and a pilot signal that is beam-formed based on the generated beamforming matrix by groups is transmitted to the terminals. Channel information based on the pilot signal is received from the terminals, hybrid beamforming scheduling is performed based on the channel information, and data is transmitted to the terminals based on the scheduling.

    Abstract translation: 提供了一种用于毫米波多输入多输出（MIMO）通信中的通信的方法和装置。 生成分组为群组的终端的波束成形矩阵，并将基于生成的波束成形矩阵逐个波束形成的导频信号发送到终端。 从终端接收基于导频信号的信道信息，基于信道信息进行混合波束成形调度，并且基于调度将数据发送到终端。

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