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    Allocating operating channel priority between frequency sharing systems
    12.
    发明专利
    Allocating operating channel priority between frequency sharing systems 未知

    公开(公告)号：GB2505038A

    公开(公告)日：2014-02-19

    申请号：GB201309999

    申请日：2013-06-05

    Applicant: KOREA ELECTRONICS TELECOMM

    Inventor： LEE DONG HUN ,  KANG HYAN DUK ,  JEONG BYUNG JANG

    IPC: H04W16/14 ,  H04L5/00

    Abstract: A method for allocating an operating channel priority between frequency sharing systems includes: a coarse channel priority allocating operation of collecting information about a target white space object (WSO) for priority allocation of an operating channel and information about the operating channel, and classifying the operating channel based on a predetermined criterion; and a fine channel priority allocating operation of removing the operating channel by checking its interference level. The information about the target WSO preferably includes channel classification information and coexistence set information such as the license type of the set and network technology information. The operating channel information may include a total occupancy rate and the number of elements in a coexistence set. The coarse channel priority allocating operation may remove operating channels used by a coexistence set element of a license type. The operating channels may be allocated to a first group used by a coexistence set element of the same network technology as the target WSO; or a second group, comprising channels excluded from the first group. Priority of the channels in the groups is allocated in ascending order of a total occupancy rate. Apparatus for implementing the method is also disclosed.

    Coexistence management system for measuring channel information between spectrum sharing devices and method thereof
    15.
    发明专利
    Coexistence management system for measuring channel information between spectrum sharing devices and method thereof 未知

    公开(公告)号：GB2505749A

    公开(公告)日：2014-03-12

    申请号：GB201311383

    申请日：2013-06-26

    Applicant: KOREA ELECTRONICS TELECOMM

    Inventor： KANG HYUN DUK ,  LEE DONG HUN ,  JEONG BYUNG JANG

    IPC: H04W16/14 ,  H04W84/18

    Abstract: Provided are a coexistence management system for measuring channel information between spectrum sharing devices and a method thereof. The coexistence management system for measuring channel information between spectrum sharing devices includes: a plurality of coexistence enablers (CEs) which is provided for each of the plurality of white space objects (WS0s) having at least one measurement capability of measuring channel information on an operation channel that is being used; a coexistence manager (CM) which is linked with at least one CE within a group to confirm measurement capability of a corresponding WSO and receives channel information on the operation channel from one or more WSOs within neighbouring groups according to the confirmed result; and a coexistence discovery and information server (CDIS) which registers at least one measurement capability for each of the plurality of WSCs.

    CARRIER AGGREGATION IN WIRELESS COMMUNICATION SYSTEM
    17.
    发明专利
    CARRIER AGGREGATION IN WIRELESS COMMUNICATION SYSTEM 未知

    公开(公告)号：CA2897384A1

    公开(公告)日：2011-07-14

    申请号：CA2897384

    申请日：2011-01-11

    Applicant: KOREA ELECTRONICS TELECOMM

    Inventor： KO YOUNG JO ,  NOH TAE GYUN ,  LEE KYOUNG SEOK ,  SEO BANG WON ,  JEONG BYUNG JANG ,  LEE HEESOO

    IPC: H04W72/04 ,  H04J11/00

    Abstract: A method for wireless communication method by a user equipment (UE). The method involves multiplying a plurality of data symbols with a first scrambling sequence and a first orthogonal sequence, mapping the data symbols multiplied by the first scrambling sequence and the first orthogonal sequence to a first slot, multiplying a plurality of data symbols with a second scrambling sequence and a second orthogonal sequence and mapping the data symbols multiplied by the second scrambling sequence and the second orthogonal sequence to a second slot. The method further involves transmitting the first slot and the second slot to a base station. The first slot includes five DFT-S-OFDM symbols to transmit the data symbols and the second slot includes four DFT-S-OFDM symbols to transmit the data symbols. The first orthogonal sequence is selected from first predefined sequences and the second orthogonal sequence is selected from second predefined sequences. The sequence index of the first orthogonal sequence is the same as the sequence index of the second orthogonal sequence .

    METHOD OF THE INTERPOLATION OF SUB-CARRIER AT A CHANNEL-CHANGE RATE IN MIMO-OFDM SYSTEM
    19.
    发明授权
    METHOD OF THE INTERPOLATION OF SUB-CARRIER AT A CHANNEL-CHANGE RATE IN MIMO-OFDM SYSTEM 无效
    MIMO-OFDM系统中信道变化率下子载波的插值方法

    公开(公告)号：KR100749819B1

    公开(公告)日：2007-08-09

    申请号：KR20060071720

    申请日：2006-07-28

    Applicant: KOREA ELECTRONICS TELECOMM ,  KOREA ADVANCED INST SCI & TECH

    Inventor： JEONG BYUNG JANG ,  AHN JAE YOUNG ,  PARK JAE HYUN ,  CHUN JOO HWAN

    IPC: H04L27/26 ,  H04B7/02 ,  H04J11/00

    CPC classification number: H04L27/2646 ,  H04B7/0417 ,  H04B7/0658 ,  H04L1/0002

    Abstract: A method for interpolating a sub-carrier at an MIMO-OFDM(Multi-Input Multi-Output Orthogonal Frequency Division Multiplexing) according to a channel change rate is provided to reduce a bit error rate in comparison with an interpolation method to uniformly determine a position of the sub-carrier regardless of the channel change rate. A method for interpolating a sub-carrier at an MIMO-OFDM according to a channel change rate includes the steps of: determining an interval between adjacent sub-carriers by using a first cost function to determine the sub-carrier fed back according to the channel change rate at a receiving stage(S10); and determining the position of the sub-carrier as a greatest feature value at the noise power and a channel matrix by using a second cost function guided by determining a pre-code matrix at the receiving stage.

    Abstract translation: 提供了一种根据信道变化率的MIMO-OFDM（多输入多输出正交频分复用）内插子载波的方法，以减少与插值方法相比的误码率，以均匀地确定位置 的子载波，而不考虑信道变化率。 一种用于根据信道变化率在MIMO-OFDM处内插子载波的方法包括以下步骤：通过使用第一成本函数来确定相邻副载波之间的间隔，以确定根据信道反馈的副载波 在接收阶段的变化率（S10）; 以及通过使用通过在接收阶段确定预代码矩阵引导的第二成本函数，将所述子载波的位置确定为所述噪声功率处的最大特征值和信道矩阵。

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