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    Method of generating pilot pattern and apparatus thereof
    3.
    发明授权
    Method of generating pilot pattern and apparatus thereof 有权
    一种用于生成导频模式的方法，及装置

    公开(公告)号：EP2011295B1

    公开(公告)日：2013-07-10

    申请号：EP07746165.5

    申请日：2007-04-24

    申请人： Electronics and Telecommunications Research Institute

    发明人： HWANG, Sung-Hyun ,  KIM, Chang-Joo ,  SONG, Myung-Sun ,  UM, Jung-Sun

    IPC分类号： H04L5/00

    CPC分类号： H04W72/0406 ,  H04L5/0007 ,  H04L5/0048

    摘要： Provided is a method of trasmitting/receiving an OFDM signal in which pilots are inserted, the pilots having a repeated pattern. The pilot pattern selects pilot symbol positions based on distances from pilots of previous orthogonal frequency division multiple access (OFDMA) symbols to a subcarrier position of a current OFDMA symbol in the frequency domain and the time domain, so that a low pilot density is maintained so as to effectively transmit data, and stable channel estimation performance can be obtained even in a bad channel environment. In addition, the minimum burst allocation size is determined according to the channel environment between the base station and the terminal, guaranteeing channel estimation performance suitable for the channel environment, and improving granularity, channel estimation latency, and channel estimation memory size.

    BEACON RE-BROADCASTING APPARATUS, BEACON RE-BROADCASTING METHOD, AND INITIAL ACCESS REQUEST METHOD IN WIRELESS NETWORK
    4.
    发明公开
    BEACON RE-BROADCASTING APPARATUS, BEACON RE-BROADCASTING METHOD, AND INITIAL ACCESS REQUEST METHOD IN WIRELESS NETWORK 有权
    设备启动信标传输方法用于启动适用于无线网络初始接入请求信标传输和方法

    公开(公告)号：EP2220821A2

    公开(公告)日：2010-08-25

    申请号：EP08857142.7

    申请日：2008-11-19

    申请人： Electronics and Telecommunications Research Institute

    发明人： KO, Gwangzeen ,  SONG, Myung-Sun ,  HWANG, Sung-Hyun ,  UM, Jung-Sun ,  KIM, Chang-Joo ,  YOU, Sung-Jin

    IPC分类号： H04L12/28

    CPC分类号： H04W16/14 ,  H04W48/12 ,  H04W72/02 ,  H04W74/004 ,  H04W84/18

    摘要： Provided are a beacon re-broadcasting apparatus, a beacon re-broadcasting method, and an initial access request method in a wireless network. In the re-broadcasting apparatus and method, a beacon frame including beacon information for communications in the wireless network and information on an echo beacon slot allocated for beacon re-broadcasting among time slots of a superframe is received from a management device for managing the wireless network in which a plurality of terminals communicated with each other through the superframe including time-divided time slots, and the beacon information is re-broadcasted during the echo beacon slot. Accordingly, the beacon information can be received in various environments, and the beacon information can be received to an adjacent network in addition to the corresponding network. Therefore, frequency resources can be shared and effectively used between networks, and convenience and efficiency in network operation can be maximized.

    摘要翻译： 本发明提供在无线网络中的信标重新广播装置中，信标重新广播方法，并在初始接入请求方法。 在再广播的装置和方法，信标帧包括用于在回声超帧的时隙中分配用于信标重新广播的信标时隙的无线网络和信息通信的信标信息是从管理装置接收的用于管理无线 网络，其中通过超帧包括时间分割的时隙海誓山盟连通终端的多个，并且所述信标信息被所述回波信标时隙期间重新广播。 因此，信标信息可在各种环境中接收，并且所述信标信息可以在除了相应的网络接收，以在相邻网络。 因此，频率资源可以被共享和网络之间的有效利用，并且便利性和效率在网络业务可以被最大化。