公开(公告)号：US20130251001A1

公开(公告)日：2013-09-26

申请号：US13990745

申请日：2011-12-01

Applicant: Yong-Hwan Lee ,  Seung-Hwan Lee ,  Jin-Seok Han

Inventor： Yong-Hwan Lee ,  Seung-Hwan Lee ,  Jin-Seok Han

IPC: H04B1/715

CPC classification number: H04B1/715 ,  H04B2001/7154 ,  H04W28/18

Abstract: An interference signal avoiding device of a frequency hopping spread system and a method thereof are disclosed. A method of transmitting/receiving an interference signal avoiding signal according to the present invention includes: determining a frequency hopping channel set and a parameter of an interference signal detector in consideration of characteristics of an interference signal; detecting whether there is an interference signal with respect to frequency hopping candidate channels that are to be used for the next frequency hopping by using the determined interference signal detector; transmitting a signal through a channel that is determined by the interference signal detector that there is no interference signal among the frequency hopping candidate channels; and searching a channel through which the signal is transmitted from the frequency hopping candidate channels in order to receive the transmitted signal.

Abstract translation: 公开了一种跳频扩散系统的干扰信号避免装置及其方法。 根据本发明的发送/接收干扰信号避免信号的方法包括：考虑干扰信号的特性，确定跳频信道组和干扰信号检测器的参数; 通过使用所确定的干扰信号检测器检测是否存在关于要用于下一次跳频的跳频候选信道的干扰信号; 通过由所述干扰信号检测器确定的在所述跳频候选信道中不存在干扰信号的信道发送信号; 并且从跳频候选信道搜索发送信号的信道，以便接收所发送的信号。

公开(公告)号：US09240973B2

公开(公告)日：2016-01-19

申请号：US14001033

申请日：2012-01-19

Applicant: Yong-Hwan Lee ,  Hyung Sin Kim ,  Seung Hwan Lee

Inventor： Yong-Hwan Lee ,  Hyung Sin Kim ,  Seung Hwan Lee

IPC: H04L29/12 ,  H04L12/753 ,  H04W40/24 ,  H04L12/751 ,  H04W84/20 ,  H04W84/18

CPC classification number: H04L61/2038 ,  H04L45/02 ,  H04L45/48 ,  H04W40/246 ,  H04W84/18 ,  H04W84/20

Abstract: Disclosed is a self-construction system of a wireless sensor network, and a method for self-construction of a wireless sensor network using the same. Also disclosed is a method for self-construction of a cluster tree structure-based wireless sensor network (WSN). The present invention can connect devices distributed densely in a wide area to a network while maintaining the advantages of a conventional tree-structured network, such as the reduction of time required for network construction, traffic by the exchange of control command messages, and a load for a routing path search, and thus can provide a WSN having an improved self-construction performance.

Abstract translation: 公开了一种无线传感器网络的自建系统，以及使用该无线传感器网络的无线传感器网络的自建构方法。 还公开了一种用于基于簇树结构的无线传感器网络（WSN）的自建构的方法。 本发明可以将在广域上密集分布的设备连接到网络，同时保持常规树状结构网络的优点，例如网络构建所需的时间减少，交换控制命令消息的业务量以及负载 用于路由路径搜索，从而可以提供具有改进的自建构性能的WSN。

公开(公告)号：US08929244B2

公开(公告)日：2015-01-06

申请号：US13813138

申请日：2011-07-29

Applicant: Yong-Hwan Lee ,  Seung-Hwan Lee ,  Hyung-Sin Kim

Inventor： Yong-Hwan Lee ,  Seung-Hwan Lee ,  Hyung-Sin Kim

IPC: G01R31/08 ,  H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0695 ,  H04B7/0452 ,  H04B7/0491 ,  H04B7/0617

Abstract: A Tx beamforming method for multi-sector cooperative transmission in a multi-antenna system includes determining a transmission mode of sector boundary users according to a channel condition; determining a multi-sector cooperative Tx beam for supporting multiple users, based on the transmission mode of the user; determining a user combination for multi-sector cooperative beamforming by considering the determined multi-sector cooperative Tx beam; and performing sector cooperative Tx beamforming with the determined user combination. Thus, the overall system capacity can be enhanced.

Abstract translation: 一种用于多天线系统中的多扇区协作传输的Tx波束成形方法，包括根据信道条件确定扇区边界用户的传输模式; 基于用户的传输模式确定用于支持多个用户的多扇区协作Tx波束; 通过考虑确定的多扇区协作Tx波束来确定用于多扇区协作波束成形的用户组合; 以及使用所确定的用户组合来执行扇区协作的Tx波束形成。 因此，可以提高整体系统容量。

公开(公告)号：US08761227B2

公开(公告)日：2014-06-24

申请号：US13126424

申请日：2009-10-27

Applicant: Yong Hwan Lee ,  Seung Hwan Lee

Inventor： Yong Hwan Lee ,  Seung Hwan Lee

IPC: H04B1/00

CPC classification number: H04B1/715 ,  H04B2201/709709

Abstract: The apparatus of the present invention comprises a group classification part for classifying the entire channels of the FHSS system into a certain number of groups according to the channel bandwidth unit of an FS interference signal; an FS interference elimination part for eliminating a group in which an FS interference exists from said certain number of groups based on the packet error rate (PER) of said certain number of groups that have been classified; and an FD interference avoidance part for avoiding interference by transmitting a packet only if an interference signal does not exist by estimating the existence of said FD interference signal based on a time sequence with respect to the channel to be used for the next frequency hopping (FH), when transmitting a signal by utilizing FH using channels wherein said FS interference signal does not exist.

Abstract translation: 本发明的装置包括：组分类部分，用于根据FS干扰信号的信道带宽单位将FHSS系统的整个信道分类成一定数量的组; FS干扰消除部分，用于基于已经被分类的所述一定数量的组的分组错误率（PER）来消除存在来自所述特定数量组的FS干扰的组; 以及FD干扰避免部分，用于通过基于相对于下一次跳频所使用的信道的时间序列（FH）来估计所述FD干扰信号的存在而不存在干扰信号来发送分组，以避免干扰 ），当使用其中所述FS干扰信号不存在的信道利用FH发送信号时。

公开(公告)号：US08463976B2

公开(公告)日：2013-06-11

申请号：US12788108

申请日：2010-05-26

Applicant: Young Kim ,  Chang Hwan Lee ,  Young Hwan Lee ,  Chang Jae Lee

Inventor： Young Kim ,  Chang Hwan Lee ,  Young Hwan Lee ,  Chang Jae Lee

IPC: G06F13/00 ,  H04B1/38 ,  H04L5/16

CPC classification number: G06F13/4022 ,  G06F2213/0042 ,  Y02D10/14 ,  Y02D10/151

Abstract: A dual modem device includes a first processor to communicate with a first network and a second processor to communicate with a second network. The first processor includes a USB module to transceive a signal with a computer side using a universal serial bus (USB) interface, a first packet control block to determine a type of the signal transceived via the USB module and to decide a communication path, and a first function block to process a signal associated with the first network. The second processor includes a first control block to process a control signal for the first processor, a second control block to process a control signal for the second processor, and a second function block to process a signal associated with the second network.

Abstract translation: 双调制解调器装置包括与第一网络通信的第一处理器和与第二网络通信的第二处理器。 第一处理器包括USB模块，用于使用通用串行总线（USB）接口与计算机侧收发信号;第一分组控制块，用于确定通过USB模块收发的信号的类型并确定通信路径;以及 用于处理与第一网络相关联的信号的第一功能块。 第二处理器包括用于处理第一处理器的控制信号的第一控制块，用于处理第二处理器的控制信号的第二控制块以及处理与第二网络相关联的信号的第二功能块。

公开(公告)号：US20130128764A1

公开(公告)日：2013-05-23

申请号：US13813138

申请日：2011-07-29

Applicant: Yong-Hwan Lee ,  Seung-Hwan Lee ,  Hyung-Sin Kim

Inventor： Yong-Hwan Lee ,  Seung-Hwan Lee ,  Hyung-Sin Kim

IPC: H04B7/06

CPC classification number: H04B7/0695 ,  H04B7/0452 ,  H04B7/0491 ,  H04B7/0617

Abstract: A Tx beamforming method for multi-sector cooperative transmission in a multi-antenna system includes determining a transmission mode of sector boundary users according to a channel condition; determining a multi-sector cooperative Tx beam for supporting multiple users, based on the transmission mode of the user; determining a user combination for multi-sector cooperative beamforming by considering the determined multi-sector cooperative Tx beam; and performing sector cooperative Tx beamforming with the determined user combination. Thus, the overall system capacity can be enhanced.

Abstract translation: 一种用于多天线系统中的多扇区协作传输的Tx波束成形方法，包括根据信道条件确定扇区边界用户的传输模式; 基于用户的传输模式确定用于支持多个用户的多扇区协作Tx波束; 通过考虑确定的多扇区协作Tx波束来确定用于多扇区协作波束成形的用户组合; 以及使用所确定的用户组合来执行扇区协作的Tx波束形成。 因此，可以提高整体系统容量。

公开(公告)号：US20110261861A1

公开(公告)日：2011-10-27

申请号：US13126424

申请日：2009-10-27

Applicant: Yong Hwan Lee ,  Seung Hwan Lee

Inventor： Yong Hwan Lee ,  Seung Hwan Lee

IPC: H04B1/713

CPC classification number: H04B1/715 ,  H04B2201/709709

Abstract: Disclosed are an apparatus and a method for reducing the effect of an interference signal present in the same channel in a frequency hopping spread spectrum (FHSS) system. The apparatus of the present invention comprises: a group classification part for classifying the entire channels of the FHSS system into a certain number of groups according to the channel bandwidth unit of an FS interference signal; an FS interference elimination part for eliminating a group in which an FS interference exists from said certain number of groups based on the packet error rate (PER) of said certain number of groups that have been classified; and an FD interference avoidance part for avoiding interference by transmitting a packet only if an interference signal does not exist by estimating the existence of said FD interference signal based on a time sequence with respect to the channel to be used for the next frequency hopping (FH), when transmitting a signal by utilizing FH using channels wherein said FS interference signal does not exist. Thus, the present invention enables further shortening of the time taken for FS interference avoidance, and efficient avoidance of FD interference, thereby being capable of obtaining enhanced transmission performance.

Abstract translation: 公开了一种降低在跳频扩频（FHSS）系统中存在于相同信道中的干扰信号的影响的装置和方法。 本发明的装置包括：组分类部分，用于根据FS干扰信号的信道带宽单位将FHSS系统的整个信道分类成一定数量的组; FS干扰消除部分，用于基于已经被分类的所述一定数量的组的分组错误率（PER）来消除存在来自所述特定数量组的FS干扰的组; 以及FD干扰避免部分，用于通过基于相对于下一次跳频所使用的信道的时间序列（FH）来估计所述FD干扰信号的存在而不存在干扰信号来发送分组，以避免干扰 ），当使用其中所述FS干扰信号不存在的信道利用FH发送信号时。 因此，本发明能够进一步缩短FS干扰避免所需的时间，并且有效地避免FD干扰，从而能够获得增强的传输性能。

公开(公告)号：US20110194509A1

公开(公告)日：2011-08-11

申请号：US13020906

申请日：2011-02-04

Applicant: Yong-Hwan Lee ,  Hyung-Sin Kim ,  Seung-Hwan Lee

Inventor： Yong-Hwan Lee ,  Hyung-Sin Kim ,  Seung-Hwan Lee

IPC: H04W72/04

CPC classification number: H04L5/0048 ,  H04B7/024 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0073

Abstract: In a wireless communication system, at least one sounding subchannel determining parameter is transmitted from a sounding signal receiving apparatus to a sounding signal transmitting apparatus. A sounding subchannel for the sounding signal transmitting apparatus is allocated according to the sounding subchannel determining parameter. A sounding signal is received from the sounding signal transmitting apparatus over the allocated sounding subchannel. The sounding subchannel determining parameter is determined for allocating a sounding subchannel considering a frequency correlation.

Abstract translation: 在无线通信系统中，将至少一个发声子信道确定参数从探测信号接收装置发送到探测信号发送装置。 根据探测子信道确定参数分配用于探测信号发送装置的探测子信道。 通过分配的探测子信道从探测信号发送装置接收到探测信号。 确定探测子信道确定参数以考虑频率相关性来分配探测子信道。

公开(公告)号：US20080113622A1

公开(公告)日：2008-05-15

申请号：US11940249

申请日：2007-11-14

Applicant: Yong-Hwan LEE ,  Seung-Hwan LEE

Inventor： Yong-Hwan LEE ,  Seung-Hwan LEE

IPC: H04B15/00 ,  H04B17/00

CPC classification number: H04B17/0087 ,  H04B7/12 ,  H04B17/24 ,  H04B17/309

Abstract: A system and method for probing a channel by a base station in a communication system is provided. The channel probing includes performing pre-probing for selecting a subchannel, adjusting a subcarrier distance of a probing signal according to frequency selectivity indicative of frequency-domain channel selectivity based on a time channel correlation of each of a plurality of users and performing main-probing for transmitting the probing signal on the selected subchannel.

Abstract translation: 提供了一种用于在通信系统中由基站探测信道的系统和方法。 信道探测包括执行用于选择子信道的预探测，根据指示频域信道选择性的频率选择性调整探测信号的副载波距离，基于多个用户中的每个用户的时间信道相关性，并执行主要探测 用于在所选择的子信道上发送探测信号。

公开(公告)号：US20150036545A1

公开(公告)日：2015-02-05

申请号：US14001033

申请日：2012-01-19

Applicant: Yong-Hwan Lee ,  Hyung Sin Kim ,  Seung Hwan Lee

Inventor： Yong-Hwan Lee ,  Hyung Sin Kim ,  Seung Hwan Lee

IPC: H04L29/12 ,  H04L12/753 ,  H04W40/24

CPC classification number: H04L61/2038 ,  H04L45/02 ,  H04L45/48 ,  H04W40/246 ,  H04W84/18 ,  H04W84/20

Abstract: Disclosed is a self-construction system of a wireless sensor network, and a method for self-construction of a wireless sensor network using the same. Also disclosed is a method for self-construction of a cluster tree structure-based wireless sensor network (WSN). The present invention can connect devices distributed densely in a wide area to a network while maintaining the advantages of a conventional tree-structured network, such as the reduction of time required for network construction, traffic by the exchange of control command messages, and a load for a routing path search, and thus can provide a WSN having an improved self-construction performance.

Abstract translation: 公开了一种无线传感器网络的自建系统，以及使用该无线传感器网络的无线传感器网络的自建构方法。 还公开了一种用于基于簇树结构的无线传感器网络（WSN）的自建构的方法。 本发明可以将在广域上密集分布的设备连接到网络，同时保持常规树状结构网络的优点，例如网络构建所需的时间减少，交换控制命令消息的业务量以及负载 用于路由路径搜索，从而可以提供具有改进的自建构性能的WSN。