公开(公告)号：US08488503B2

公开(公告)日：2013-07-16

申请号：US12790138

申请日：2010-05-28

申请人： Yun-Jae Won ,  Seung-Ok Lim ,  Sun-Hee Kim ,  Kyu-Sung Hwang

发明人： Yun-Jae Won ,  Seung-Ok Lim ,  Sun-Hee Kim ,  Kyu-Sung Hwang

IPC分类号： G08C17/04 ,  H04J3/06 ,  H04J3/24 ,  H04W4/00 ,  H04L27/02 ,  H04L27/18 ,  H04L7/04 ,  H04B1/16

CPC分类号： H04L12/12 ,  H04L12/44 ,  H04W52/0229 ,  Y02D70/00

摘要： A magnetic field communication method is provided for managing node with low power consumption which enhances performance and efficiency of a magnetic field area network in the low frequency region. The magnetic field communication method for managing node with low power consumption of the present invention is accomplished in a low-frequency wireless network that is comprised of a MFAN-C and at least one MFAN-N wherein a physical layer is comprised of a preamble, a header, and a payload, and the preamble is comprised of a wake-up sequence and a synchronization sequence. The wake-up sequence is only added to the preamble of the frame that is transmitted from the MFAN-C when the MFAN-N is being activated from the hibernation mode. The wake-up sequence is modulated using ASK modulation, and the synchronization sequence is modulated using BPSK modulation.

摘要翻译： 提供了一种用于管理低功耗的节点的磁场通信方法，其提高了低频区域中的磁场区域网络的性能和效率。 用于管理本发明的具有低功耗的节点的磁场通信方法在由MFAN-C和至少一个MFAN-N组成的低频无线网络中实现，其中物理层由前导码组成， 报头和有效载荷，并且前同步码由唤醒序列和同步序列组成。 唤醒序列仅在MFAN-N从休眠模式激活时才被添加到从MFAN-C发送的帧的前同步码。 使用ASK调制来调制唤醒序列，并且使用BPSK调制来调制同步序列。

公开(公告)号：US08406165B2

公开(公告)日：2013-03-26

申请号：US12790480

申请日：2010-05-28

申请人： Yun-Jae Won ,  Seung-Ok Lim ,  Sun-Hee Kim ,  Kyu-Sung Hwang

发明人： Yun-Jae Won ,  Seung-Ok Lim ,  Sun-Hee Kim ,  Kyu-Sung Hwang

IPC分类号： H04B7/212 ,  H04W4/00 ,  H04J3/06

CPC分类号： H04W74/06 ,  H04L1/1607 ,  H04W60/00 ,  H04W84/18

摘要： Magnetic field communication methods and apparatuses are performed by the coordinator and node of a magnetic field area network, respectively. The method which is performed by the coordinator includes: (a) sending a request packet requesting association with a network, disassociation from a network, network association state checking, data transmission, or group address setting, (b) receiving response packets, (c) selecting one or more response packets from among the received response packets, (d) sending a response acknowledgement packet to nodes corresponding to the selected response packets, (e) receiving response packets resent by nodes which have not received the sent response acknowledgement packet, (f) selecting one or more response packets from among the response packets received at (e), and (g) sending a response acknowledgement packet to nodes corresponding to the response packets selected at (f).

摘要翻译： 磁场通信方法和装置分别由磁场区域网络的协调器和节点执行。 由协调器执行的方法包括：（a）发送请求与网络关联的请求分组，与网络分离，网络关联状态检查，数据传输或组地址设置，（b）接收响应分组，（c （d）向与所选择的响应分组相对应的节点发送响应确认分组;（e）接收未接收到所发送的响应确认分组的节点重发的响应分组;（e）从所接收的响应分组中选择一个或多个响应分组; （f）从（e）中接收的响应分组中选择一个或多个响应分组，以及（g）向（f）选择的响应分组对应的节点发送响应确认分组。

公开(公告)号：US20110255626A1

公开(公告)日：2011-10-20

申请号：US13141113

申请日：2009-05-26

申请人： Sun-Hee Kim ,  Yun-Jae Won ,  Seung-Ok Lim

发明人： Sun-Hee Kim ,  Yun-Jae Won ,  Seung-Ok Lim

IPC分类号： H04L27/20 ,  H04L27/00

CPC分类号： H04L25/4904 ,  H04L27/18 ,  H04L69/22 ,  H04W28/06

摘要： The present invention relates to a method for configuring a physical layer of a low frequency band based on wireless magnetic field communication, and a computer-readable recording medium including a program for executing the method. The method supports the proper packet format, coding mode, and modulation mode between a master and a slave in order to enable wireless communication in variable data rate or coding modes depending on a peripheral environment in a low frequency band based on wireless magnetic field communication which is applied to a difficult environment. The method of the invention is characterized by changing the data rate and the coding mode of a payload field within a preset range depending on the peripheral communication environment, wherein the payload field is included in the request and response frames between the master and the slave. The request and response frames can be configured in the same format in the above-mentioned configuration and respectively include a preamble field, a header field, and the payload field.

摘要翻译： 本发明涉及一种用于基于无线磁场通信配置低频带的物理层的方法，以及包括用于执行该方法的程序的计算机可读记录介质。 该方法支持主机和从机之间的适当的分组格式，编码模式和调制模式，以便基于无线磁场通信在低频带内根据外围环境实现可变数据速率或编码模式的无线通信， 适用于困难的环境。 本发明的方法的特征在于，根据外围通信环境，将有效载荷字段的数据速率和编码模式改变在预设范围内，其中有效载荷字段包括在主机和从机之间的请求和响应帧中。 请求和响应帧可以在上述配置中以相同的格式配置，并且分别包括前同步码字段，报头字段和有效载荷字段。

公开(公告)号：US07724809B2

公开(公告)日：2010-05-25

申请号：US11614318

申请日：2006-12-21

申请人： Jang-Yeon Lee ,  Hyung-Keun Lee ,  Jin-Woong Cho ,  Hyeon-Seok Lee ,  Yun-Jae Won

发明人： Jang-Yeon Lee ,  Hyung-Keun Lee ,  Jin-Woong Cho ,  Hyeon-Seok Lee ,  Yun-Jae Won

IPC分类号： H04B1/00

CPC分类号： H04B1/71075

摘要： A joint detection-decoding receiver using a multistage parallel interference canceller for selectively estimating a partial codeword corresponding to a state transition (branch) is disclosed. The JDD receiver of the DS-CDMA system includes a PIC that employs a state sequence to selectively carry out a symbol estimation of a partial codeword corresponding to the branch so as to reduce complexity and a calculation load as well as maintaining a high performance of the receiver according to the joint detection-decoding.

摘要翻译： 公开了一种使用多级并行干扰消除器的联合检测解码接收器，用于选择性地估计与状态转换（分支）相对应的部分码字。 DS-CDMA系统的JDD接收机包括采用状态序列的PIC选择性地执行对应于该分支的部分码字的符号估计，以便降低复杂性和计算负载以及维持高性能 接收机根据联合检测解码。

公开(公告)号：US20080123719A1

公开(公告)日：2008-05-29

申请号：US11614318

申请日：2006-12-21

申请人： Jang-Yeon LEE ,  Hyung-Keun Lee ,  Jin-Woong Cho ,  Hyeon-Seok Lee ,  Yun-Jae Won

发明人： Jang-Yeon LEE ,  Hyung-Keun Lee ,  Jin-Woong Cho ,  Hyeon-Seok Lee ,  Yun-Jae Won

IPC分类号： H04B1/00

CPC分类号： H04B1/71075

摘要： A joint detection-decoding receiver using a multistage parallel interference canceller for selectively estimating a partial codeword corresponding to a state transition (branch) is disclosed. The JDD receiver of the DS-CDMA system includes a PIC that employs a state sequence to selectively carry out a symbol estimation of a partial codeword corresponding to the branch so as to reduce complexity and a calculation load as well as maintaining a high performance of the receiver according to the joint detection-decoding.

摘要翻译： 公开了一种使用多级并行干扰消除器的联合检测解码接收器，用于选择性地估计与状态转换（分支）相对应的部分码字。 DS-CDMA系统的JDD接收机包括使用状态序列的PIC选择性地执行与分支对应的部分码字的符号估计，以便降低复杂性和计算负载以及维持高性能 接收机根据联合检测解码。