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    Method of bandpass sampling using single sideband converting
    2.
    发明授权
    Method of bandpass sampling using single sideband converting 有权
    使用单边带转换的带通采样方法

    公开(公告)号：US08559556B2

    公开(公告)日：2013-10-15

    申请号：US12711012

    申请日：2010-02-23

    Applicant: Jinwoo Park ,  Chung Gu Kang

    Inventor： Jinwoo Park ,  Chung Gu Kang

    IPC: H03K9/00

    CPC classification number: H04B1/0032 ,  H04B1/0025

    Abstract: The present invention provides a method of bandpass sampling which particularly includes the single-sideband signal conversion procedure prior to the sampling process in the purpose of lowering the required sampling frequency. Conversion of the bandpass RF signal into a single-sideband spectrum signal which has the spectrum components only in either the positive or the negative frequency domain is accomplished by bandpass-filtering, or more effectively by using a Hilbert transformer. This invention includes a method of finding the minimum sampling frequency for simultaneous frequency down-conversion of multiple RF bandpass signals. It is expected from this invention that the components additionally required in the RF receiver due to the proposed bandpass sampling method is the bandpass filters or the Hilbert transformer for single-sideband conversion, but the benefits from this invention could be the reduced ADC speed performance and the subsequent digital processing load in the receiver system because of the reduced data rates.

    Abstract translation: 本发明提供了一种带通采样方法，其特征在于包括采样过程之前的单边带信号转换过程，以降低所需的采样频率。 通过带通滤波，或更有效地通过使用希尔伯特变换器，将带通RF信号转换成仅具有正或负频域中的频谱分量的单边带频谱信号。 本发明包括找到多个RF带通信号的同时下变频的最小采样频率的方法。 从本发明预期，由于所提出的带通采样方法，RF接收机中另外需要的组件是用于单边带转换的带通滤波器或希尔伯特变换器，但是本发明的益处可以是降低的ADC速度性能和 随后的数字处理负载在接收机系统中由于数据速率的降低。

    METHOD AND APPARATUS FOR STAGGERED ZONE RESOURCE ALLOCATION IN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM
    6.
    发明申请
    METHOD AND APPARATUS FOR STAGGERED ZONE RESOURCE ALLOCATION IN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM 有权
    正交频分多址访问系统中分层资源分配的方法与装置

    公开(公告)号：US20090129401A1

    公开(公告)日：2009-05-21

    申请号：US12022459

    申请日：2008-01-30

    Applicant: Chung Gu KANG ,  Jun Ho Son

    Inventor： Chung Gu KANG ,  Jun Ho Son

    IPC: H04L12/28

    CPC classification number: H04W16/12 ,  H04W72/0453

    Abstract: A method for staggered zone resource allocation in an orthogonal frequency division multiple access (OFDMA) system having a cluster includes: dividing a frequency resource of the OFDMA system into a plurality of time zones along a time axis; determining at least two resource allocation start zones among the plurality of time zones in at least two cells of the cluster, respectively; arranging users in each of the at least two cell according to a path loss in a descending order; and sequentially allocating the frequency resource to the arranged users from the at least two resource allocation start zones in the at least two cells, respectively.

    Abstract translation: 一种具有群集的正交频分多址（OFDMA）系统中的交错区资源分配方法包括：沿着时间轴将OFDMA系统的频率资源划分为多个时区; 分别在所述群集的至少两个小区中的所述多个时区中确定至少两个资源分配开始区域; 根据路径损耗按降序排列用户至少两个小区中的每一个; 并且分别从所述至少两个小区中的所述至少两个资源分配开始区域向所述排列的用户顺序地分配所述频率资源。

    Method and apparatus for allocating radio resource in wireless sensor network
    9.
    发明申请
    Method and apparatus for allocating radio resource in wireless sensor network 有权
    在无线传感器网络中分配无线电资源的方法和装置

    公开(公告)号：US20080188230A1

    公开(公告)日：2008-08-07

    申请号：US11822473

    申请日：2007-07-06

    Applicant: Paul Barom Jeon ,  Jun Hyeong Kim ,  Sang Do Park ,  Sun Shin An ,  Won Keun Kong ,  Chung Gu Kang ,  Sung Min Kang ,  Il Whan Kim

    Inventor： Paul Barom Jeon ,  Jun Hyeong Kim ,  Sang Do Park ,  Sun Shin An ,  Won Keun Kong ,  Chung Gu Kang ,  Sung Min Kang ,  Il Whan Kim

    IPC: H04Q7/20

    CPC classification number: H04W72/10 ,  H04L67/12 ,  H04W84/18

    Abstract: A method and apparatus for allocating a radio resource in a wireless sensor network are provided, in which a signal requesting a radio resource allocation is received from any one of sensors included in the wireless sensor network, an amount of remaining energy is compared with respect to each zone where a sensor transmitting the signal is included, an order of zones, from a zone comprising a greatest amount of remaining energy to a zone having a least amount of remaining energy, is determined as a result of the comparison, and a time slot is allocated to a sensor of each zone according to the determined order of zones, when transmitting a frame for the radio resource allocation.

    Abstract translation: 提供了一种在无线传感器网络中分配无线电资源的方法和装置，其中从无线传感器网络中包括的传感器中的任何一个接收到请求无线电资源分配的信号，将剩余能量相对于 作为比较的结果，确定包含发送信号的传感器的每个区域，从包括最大剩余能量的区域到具有最小剩余能量的区域的区域的顺序被确定，并且时隙 当发送用于无线电资源分配的帧时，根据确定的区域顺序将其分配给每个区域的传感器。

    Flooding method in ad-hoc network
    10.
    发明申请
    Flooding method in ad-hoc network 有权

    公开(公告)号：US20060045066A1

    公开(公告)日：2006-03-02

    申请号：US11214732

    申请日：2005-08-31

    Applicant: Soon-jin Choi ,  Il-whan Kim ,  Chung-gu Kang ,  Min-seop Jeong ,  Yu-jin Lim

    Inventor： Soon-jin Choi ,  Il-whan Kim ,  Chung-gu Kang ,  Min-seop Jeong ,  Yu-jin Lim

    IPC: H04L12/28

    CPC classification number: H04W40/08 ,  H04L45/00 ,  H04L45/32

    Abstract: A method for flooding a route request packet that is received at a node in a communication system constructed of at least three nodes including a source node that requests to establish a route and a destination node that receives the route request. One of a plurality of levels having different transmission periods is determined using a strength of a received signal of a measured packet. A transmission start point is selected at the determined level, and it is determined whether a route request packet is re-received before the selected transmission start point. The received packet is broadcast at the selected transmission start point when the packet is not re-received. The transmission start point is randomly selected within the transmission period or at the level in consideration of the number of the connected nodes.

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