知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

63 records (took 0.023 seconds)

    METHOD AND SYSTEM FOR PRECISE POSITIONING OF HEIGHT BASED ON GNSS
    11.
    发明申请
    METHOD AND SYSTEM FOR PRECISE POSITIONING OF HEIGHT BASED ON GNSS 有权

    公开(公告)号：US20220308595A1

    公开(公告)日：2022-09-29

    申请号：US17524432

    申请日：2021-11-11

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Yoola HWANG ,  Jae Young AHN ,  Jihun CHA

    IPC: G05D1/06 ,  G01W1/02 ,  G01S19/42 ,  B64C39/02

    Abstract: Disclosed are a method and system for precise height positioning based on global navigation satellite system (GNSS). A precise height positioning method may include determining an orthometric height based on a barometric pressure and a temperature of a region where an unmanned aerial vehicle is located, determining a geoid height in accordance with GNSS positioning information of the unmanned aerial vehicle, and determining a final altitude based on a difference between an ellipsoidal height in accordance with the orthometric height and the geoid height and an ellipsoidal height included in the GNSS positioning information.

    METHOD FOR TRANSMITTING AND RECEIVING CONTROL CHANNEL IN WIRELESS COMMUNICATION SYSTEM
    12.
    发明申请
    METHOD FOR TRANSMITTING AND RECEIVING CONTROL CHANNEL IN WIRELESS COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：US20190150127A1

    公开(公告)日：2019-05-16

    申请号：US16243970

    申请日：2019-01-09

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Tae Gyun NOH ,  Jae Young AHN

    IPC: H04W72/04 ,  H04L5/00 ,  H04W76/27

    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.

    METHOD OF ERROR RECOVERY IN TRANSMITTING AND RECEIVING VOICE SERVICE IN PACKET BASED MOBILE COMMUNICATION SYSTEMS
    14.
    发明申请
    METHOD OF ERROR RECOVERY IN TRANSMITTING AND RECEIVING VOICE SERVICE IN PACKET BASED MOBILE COMMUNICATION SYSTEMS 审中-公开
    基于分组移动通信系统的发送和接收语音服务中的错误恢复方法

    公开(公告)号：US20160242154A1

    公开(公告)日：2016-08-18

    申请号：US15049330

    申请日：2016-02-22

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Kyoung Seok Lee ,  Jae Heung KIM ,  Soo Jung JUNG ,  Jae Young AHN

    IPC: H04W72/04

    CPC classification number: H04W72/042 ,  H04W72/04 ,  H04W72/0413 ,  H04W72/1289

    Abstract: Provided is a method of transmitting and receiving data using a persistent allocation scheme in order to effectively support a voice service between a base station and a mobile terminal in a packet based mobile communication system. When an error occurs in transmitting control information that indicates whether to use a radio resource using the persistent allocation scheme, the base station may retransmit the control information and thereby maintain a communication quality.

    Abstract translation: 提供了一种使用持久性分配方案发送和接收数据的方法，以便有效地支持基于分组的移动通信系统中的基站和移动终端之间的语音服务。 当发送指示是否使用使用持续分配方案的无线资源的控制信息发生错误时，基站可以重发控制信息，从而保持通信质量。

    COOPERATIVE COMMUNICATION METHOD IN CELLULAR WIRELESS COMMUNICATION SYSTEM AND TERMINAL FOR PERFORMING THE METHOD
    16.
    发明申请
    COOPERATIVE COMMUNICATION METHOD IN CELLULAR WIRELESS COMMUNICATION SYSTEM AND TERMINAL FOR PERFORMING THE METHOD 审中-公开
    蜂窝无线通信系统中的协同通信方法和终端实现方法

    公开(公告)号：US20150381241A1

    公开(公告)日：2015-12-31

    申请号：US14844153

    申请日：2015-09-03

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Young-Jo KO ,  Jae Young AHN ,  Bangwon SEO

    IPC: H04B7/02 ,  H04W72/12 ,  H04B7/06

    CPC classification number: H04B7/024 ,  H04B7/0417 ,  H04B7/0626 ,  H04L5/0035 ,  H04W72/1289

    Abstract: Provided is a coordinated communication method in which a plurality of cells cooperate to perform multi-antenna transmission and reception in a cellular wireless communication system. A terminal wirelessly transmits channel state information (CSI) feedback to a serving cell and at least one coordinating cell. The serving cell and the coordinating cell perform multi-point coordinated communication using the CSI feedback. Even if the serving cell and the coordinating cell belong to different base stations, information exchange between the cells is minimized, so that a transmission delay and a traffic increment of a backhaul network can be prevented.

    Abstract translation: 提供了一种协作通信方法，其中多个小区协作以在蜂窝无线通信系统中执行多天线发送和接收。 终端向服务小区和至少一个协调小区无线地发送信道状态信息（CSI）反馈。 服务小区和协调小区使用CSI反馈进行多点协调通信。 即使服务小区和协调小区属于不同的基站，小区之间的信息交换被最小化，从而可以防止回传网络的传输延迟和业务增量。

    METHOD OF TRANSMISSION AND RECEPTION FOR DEVICE TO DEVICE DISCOVERY AND APPARATUS THEREOF
    18.
    发明申请
    METHOD OF TRANSMISSION AND RECEPTION FOR DEVICE TO DEVICE DISCOVERY AND APPARATUS THEREOF 有权
    用于设备发现的设备的传输和接收方法及其装置

    公开(公告)号：US20140301285A1

    公开(公告)日：2014-10-09

    申请号：US14081506

    申请日：2013-11-15

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Jae Young AHN ,  Young Jo KO

    IPC: H04W72/04

    CPC classification number: H04W48/12 ,  H04W8/005 ,  H04W76/14

    Abstract: Methods of discovery performed in a terminal are disclosed. A method of discovery, performed in a terminal, may comprise selecting a discovery physical channel on which discovery information is transmitted in a discovery frame comprising a plurality of transmission durations, and transmitting the discovery information through the selected discovery physical channel. Thus, efficient discovery between terminals may be performed and efficiency of resource usage can be enhanced.

    Abstract translation: 公开了在终端中执行的发现方法。 在终端中执行的发现方法可以包括在包括多个传输持续时间的发现帧中选择在其上发送发现信息的发现物理信道，以及通过所选择的发现物理信道发送所述发现信息。 因此，可以执行终端之间的有效发现，并且可以提高资源使用的效率。

    METHOD AND APPARATUS FOR TRANSMISSION AND RECEPTION IN MULTI-CARRIER WIRELESS COMMUNICATION SYSTEMS
    19.
    发明申请
    METHOD AND APPARATUS FOR TRANSMISSION AND RECEPTION IN MULTI-CARRIER WIRELESS COMMUNICATION SYSTEMS 有权
    多载波无线通信系统中传输和接收的方法与装置

    公开(公告)号：US20140079000A1

    公开(公告)日：2014-03-20

    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: H04W72/04

    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。

Patent Agency Ranking