公开(公告)号：US08254345B2

公开(公告)日：2012-08-28

申请号：US11513040

申请日：2006-08-31

申请人： Jun-haeng Cho ,  Chung-gu Kang ,  Il-whan Kim ,  Kun-hyun Kim

发明人： Jun-haeng Cho ,  Chung-gu Kang ,  Il-whan Kim ,  Kun-hyun Kim

IPC分类号： H04J3/00

CPC分类号： H04W48/12 ,  H04W40/248 ,  H04W40/32 ,  H04W74/04 ,  H04W84/18

摘要： A beacon scheduling method in multi-hop ad-hoc communications is provided. This method can prevent overhead in a manner that a base station (BS) transmits beacon slot information to a carrier sense multiple access (CSMA)/collision avoidance (CA) node (CN) and a gateway (GW) through contention-free time division multiple access (TDMA) communications at initial clustering, the CN and the GW performs a sequential clustering to forward the beacon slot information to a cluster head (CH), the CH aggregates joining messages from nodes and assigns non-colliding beacon slots to the nodes, and the GW uses a beacon slot frame of a beacon transmission period (BTP) used by its selected CH in a beacon reply period (BRP) as well. Accordingly, the CH does not need to separately perform the initialization to elect the beacon slot, and the GW also does not require a separate initialization to select the beacon relay slot.

摘要翻译： 提供了一种多跳自组织通信中的信标调度方法。 该方法可以以基站（BS）通过无竞争时间划分向载波侦听多路访问（CSMA）/冲突避免（CA）节点（CN）和网关（GW）发送信标时隙信息的方式来防止开销 初始聚类的多址（TDMA）通信，CN和GW执行顺序聚类，将信标时隙信息转发到簇头（CH），CH聚合加入来自节点的消息，并向节点分配非冲突信标时隙 ，并且GW还在信标回复周期（BRP）中使用由其选择的CH使用的信标发送周期（BTP）的信标时隙帧。 因此，CH不需要分别执行初始化来选择信标时隙，并且GW也不需要单独的初始化来选择信标中继时隙。

公开(公告)号：US20100208717A1

公开(公告)日：2010-08-19

申请号：US12658650

申请日：2010-02-12

申请人： Young-Ky Kim ,  Jae-Ho Jeon ,  Il-Whan Kim ,  Seung-Joo Maeng

发明人： Young-Ky Kim ,  Jae-Ho Jeon ,  Il-Whan Kim ,  Seung-Joo Maeng

IPC分类号： H04B7/216 ,  H04B7/00

CPC分类号： H04W16/14 ,  H04W72/0453

摘要： A base station includes a center frequency setting unit, a local oscillator, a baseband processor, and an RF processor. In the event of a frequency band change, the center frequency setting unit sets a center frequency of a use frequency channel to have a predetermined offset value with respect to a center frequency before the frequency band change. The local oscillator generates an LO frequency signal according to the center frequency set by the center frequency setting unit. The baseband processor generates a downlink baseband signal. The RF processor uses the LO frequency signal to convert the downlink baseband signal into an RF signal prior to transmission.

摘要翻译： 基站包括中心频率设置单元，本地振荡器，基带处理器和RF处理器。 在频带变化的情况下，中心频率设定单元将频率信道的中心频率设定为相对于频带变化前的中心频率具有规定的偏移值。 本地振荡器根据由中心频率设定单元设定的中心频率产生LO频率信号。 基带处理器生成下行链路基带信号。 RF处理器使用LO频率信号在传输之前将下行链路基带信号转换成RF信号。

公开(公告)号：US07391789B2

公开(公告)日：2008-06-24

申请号：US10930900

申请日：2004-09-01

申请人： Chung-gu Kang ,  Won-soo Kim ,  Il-whan Kim

发明人： Chung-gu Kang ,  Won-soo Kim ,  Il-whan Kim

IPC分类号： H04L12/413

CPC分类号： H04W74/0816 ,  H04W84/18 ,  H04W88/04

摘要： An ad-hoc network wireless communication system transmits data packets from one hop to another hop in a relay manner, and includes a transmitting node for transmitting a RTS message in order to transmit the data packets, and a receiving node, existing in a next hop of the transmitting node, for transmitting a CTS message in response to the RTS message transmitted from the transmitting node. The receiving node transmits the CTS message to another receiving node successively connected to the receiving node in response to the transmitted CTS message, and the transmitting node transmits the data packets to the receiving node in the case that the CTS message transmitted by the receiving node of the next hop is received over a predetermined number of times. The ad-hoc network wireless communication system can maximize the communication efficiency in a multi-hop network with its complexity minimized by extending a MAC protocol based on a IEEE 802.11 DCF to a reservation-based MAC in the multi-hop network.

摘要翻译： 自组织网络无线通信系统以中继方式将数据分组从一跳发送到另一跳，并且包括用于发送RTS消息以发送数据分组的发送节点和存在于下一跳中的接收节点 用于响应于从发送节点发送的RTS消息来发送CTS消息。 接收节点响应于所发送的CTS消息，将CTS消息发送到连接到接收节点的另一个接收节点，并且发送节点在由接收节点发送的CTS消息的情况下将数据分组发送到接收节点 在预定次数下接收下一跳。 自组织网络无线通信系统可以通过将基于IEEE 802.11DCF的MAC协议扩展到多跳网络中的基于预留的MAC来实现其复杂度最小化的多跳网络中的通信效率最大化。

公开(公告)号：US07339921B2

公开(公告)日：2008-03-04

申请号：US11125585

申请日：2005-05-10

申请人： Il-Whan Kim ,  Sung-Hyun Cho ,  Sang-Boh Yun ,  Won-Hyoung Park ,  Chung-Gu Kang ,  Jeong-Hwan Lee

发明人： Il-Whan Kim ,  Sung-Hyun Cho ,  Sang-Boh Yun ,  Won-Hyoung Park ,  Chung-Gu Kang ,  Jeong-Hwan Lee

IPC分类号： H04J3/24

CPC分类号： H04W8/26 ,  H04W28/06 ,  H04W74/00 ,  H04W80/02

摘要： Provided is a connection identification (CID) allocating method in a Broadband Wireless Access (BWA) communication system having a medium access control protocol data unit (MAC PDU) format with a header field including control information and a payload field including user data. The header field has a first CID field of a first length indicating a CID of a mobile subscriber station (MSS), a second CID field of a second length and indicating the CID of the MSS by being concatenated with a CID of the first CID field, and a type field indicating whether the second CID field is used. The method includes determining a CID to be allocated to a particular MSS; and if the length of the determined CID is equal to the first length, including the determined CID in the first CID field, including, in the type field, information indicating that the second CID field is not used, and transmitting the MAC PDU to the MSS.

摘要翻译： 提供了一种具有介质访问控制协议数据单元（MAC PDU）格式的宽带无线接入（BWA）通信系统中的连接识别（CID）分配方法，其具有包括控制信息的报头字段和包括用户数据的有效载荷字段。 报头字段具有指示移动用户台（MSS）的CID的第一长度的第一CID字段和第二长度的第二CID字段，并且通过与第一CID字段的CID连接来指示MSS的CID ，以及指示是否使用第二CID字段的类型字段。 该方法包括确定要分配给特定MSS的CID; 并且如果确定的CID的长度等于第一长度，包括第一CID字段中确定的CID，包括在类型字段中指示不使用第二CID字段的信息，并将MAC PDU发送到 MSS。

公开(公告)号：US08451772B2

公开(公告)日：2013-05-28

申请号：US12658650

申请日：2010-02-12

申请人： Young-Ky Kim ,  Jae-Ho Jeon ,  Il-Whan Kim ,  Seung-Joo Maeng

发明人： Young-Ky Kim ,  Jae-Ho Jeon ,  Il-Whan Kim ,  Seung-Joo Maeng

IPC分类号： H04B7/212

CPC分类号： H04W16/14 ,  H04W72/0453

摘要： A base station includes a center frequency setting unit, a local oscillator, a baseband processor, and an RF processor. In the event of a frequency band change, the center frequency setting unit sets a center frequency of a use frequency channel to have a predetermined offset value with respect to a center frequency before the frequency band change. The local oscillator generates an LO frequency signal according to the center frequency set by the center frequency setting unit. The baseband processor generates a downlink baseband signal. The RF processor uses the LO frequency signal to convert the downlink baseband signal into an RF signal prior to transmission.

摘要翻译： 基站包括中心频率设置单元，本地振荡器，基带处理器和RF处理器。 在频带变化的情况下，中心频率设定单元将频率信道的中心频率设定为相对于频带变化前的中心频率具有规定的偏移值。 本地振荡器根据由中心频率设定单元设定的中心频率产生LO频率信号。 基带处理器生成下行链路基带信号。 RF处理器使用LO频率信号在传输之前将下行链路基带信号转换成RF信号。

公开(公告)号：US07522637B2

公开(公告)日：2009-04-21

申请号：US11178919

申请日：2005-07-11

申请人： Il-Whan Kim ,  Sang-Boh Yun ,  Sung-Hyun Cho ,  Won-Hyoung Park ,  Chung-Gu Kang ,  Jeong-Hwan Lee

发明人： Il-Whan Kim ,  Sang-Boh Yun ,  Sung-Hyun Cho ,  Won-Hyoung Park ,  Chung-Gu Kang ,  Jeong-Hwan Lee

IPC分类号： H04J1/00

CPC分类号： H04L5/0058 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0046 ,  H04W24/00 ,  H04W72/0406 ,  H04W72/048 ,  H04W88/08

摘要： A dynamic resource allocation method in an OFDMA system is provided. A base station determines if each of a plurality of SSs supports subchannel-based dynamic resource allocation. If an SS supports the subchannel-based dynamic resource allocation, the base station allocates resources to the SS on a subchannel basis. If the SS does not support the subchannel-based dynamic resource allocation, the base station allocates resources to the SS on a burst basis.

摘要翻译： 提供了OFDMA系统中的动态资源分配方法。 基站确定多个SS中的每一个是否支持基于子信道的动态资源分配。 如果SS支持基于子信道的动态资源分配，则基站在子信道基础上向SS分配资源。 如果SS不支持基于子信道的动态资源分配，则基站以突发为基础向SS分配资源。

公开(公告)号：US20080188230A1

公开(公告)日：2008-08-07

申请号：US11822473

申请日：2007-07-06

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

发明人： 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分类号： H04Q7/20

CPC分类号： H04W72/10 ,  H04L67/12 ,  H04W84/18

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20060045066A1

公开(公告)日：2006-03-02

申请号：US11214732

申请日：2005-08-31

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

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

IPC分类号： H04L12/28

CPC分类号： H04W40/08 ,  H04L45/00 ,  H04L45/32

摘要： 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.

公开(公告)号：US20070230376A1

公开(公告)日：2007-10-04

申请号：US11646912

申请日：2006-12-28

申请人： Seung-Young Park ,  Sang-Boh Yun ,  Yeon-Woo Lee ,  Chung-Gu Kang ,  Il-Whan Kim

发明人： Seung-Young Park ,  Sang-Boh Yun ,  Yeon-Woo Lee ,  Chung-Gu Kang ,  Il-Whan Kim

IPC分类号： H04L5/14

CPC分类号： H04W16/02 ,  H04W16/12 ,  H04W72/00 ,  H04W72/0453 ,  H04W74/02

摘要： A resource allocation method in a wireless communication system for providing a communication service in a given system frequency band to access terminals (ATs) within a broad-band service area around an access point (AP) and to ATs within a narrow-band service area having a radius larger than the radius of the broad-band service area. In the resource allocation method, the system frequency band is divided into a Time Division Duplexing (TDD) interval and a Frequency Division Duplexing (FDD) interval in time, and the TDD interval and the FDD interval are defined as TDD resources and FDD resources, respectively. The TDD resources are allocated to an AT within the broad-band service area, and the FDD resources are allocated to an AT within the narrow-band service area.

摘要翻译： 一种无线通信系统中的资源分配方法，用于在给定的系统频带内向在接入点（AP）周围的宽带服务区域内的接入终端（AT）和窄带服务区域内的AT提供通信服务 其半径大于宽带服务区域的半径。 在资源分配方法中，将系统频带划分为时分双工（TDD）间隔和频分双工（FDD）间隔，并将TDD间隔和FDD间隔定义为TDD资源和FDD资源， 分别。 TDD资源分配给宽带业务区内的AT，FDD资源分配给窄带业务区内的AT。

公开(公告)号：US20070140167A1

公开(公告)日：2007-06-21

申请号：US11640623

申请日：2006-12-18

申请人： Jae-Hyuk Jang ,  Young-Bin Chang ,  Jung-Min Ro ,  Eun-Taek Lim ,  Dong-Seek Park ,  Young-Kwon Cho ,  Chung-Gu Kang ,  Il-Whan Kim

发明人： Jae-Hyuk Jang ,  Young-Bin Chang ,  Jung-Min Ro ,  Eun-Taek Lim ,  Dong-Seek Park ,  Young-Kwon Cho ,  Chung-Gu Kang ,  Il-Whan Kim

IPC分类号： H04Q7/00

CPC分类号： H04W72/10

摘要： An apparatus and method for reducing MAP channel overhead in a broadband wireless communication system. In a Base Station (BS), a traffic classifier classifies transmission data into a first group and a second group according to user channel information and packet sizes of the transmission data. A MAP channel configure configures a MAP channel to include information about users of the first group and positions of data for the users, information indicating whether users of the second group have succeeded in random access in a second uplink data region of a previous frame, and information about resource reservation for a current frame for the second group. A channel mapper maps the first group to a first downlink data region and maps the second group to a second downlink data region according to the MAP channel.

摘要翻译： 一种用于在宽带无线通信系统中降低MAP信道开销的装置和方法。 在基站（BS）中，流分类器根据用户信道信息和传输数据的分组大小将传输数据分类为第一组和第二组。 MAP通道配置配置MAP通道以包括关于第一组的用户和用户的数据的位置的信息，指示第二组的用户是否已成功在先前帧的第二上行链路数据区域中的随机接入的信息，以及 关于第二组的当前帧的资源预留的信息。 信道映射器将第一组映射到第一下行链路数据区域，并且根据MAP信道将第二组映射到第二下行链路数据区域。